/* ============================================================
   GRAVEL CALCULATOR PRO — Main Stylesheet
   Color Palette:
     Primary Navy:   #1a3a6b
     Primary Blue:   #2563eb
     Accent Amber:   #f59e0b
     Light BG:       #f1f5f9
     Body Text:      #1e293b
     Muted Text:     #64748b
     Border:         #e2e8f0
     White:          #ffffff
   ============================================================ */

/* ======================== RESET & BASE ======================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: #1e293b;
    background: #ffffff;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a { color: #2563eb; text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

/* ======================== LAYOUT ======================== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }

/* ======================== TYPOGRAPHY ======================== */
h1 { font-size: clamp(1.85rem, 4vw, 2.85rem); font-weight: 800; line-height: 1.15; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.45rem, 3vw, 2.1rem); font-weight: 700; line-height: 1.25; letter-spacing: -0.01em; }
h3 { font-size: 1.1rem; font-weight: 600; }

.section-title {
    text-align: center;
    color: #1a3a6b;
    margin-bottom: 0.75rem;
}

.section-title-wrap {
    text-align: center;
    margin-bottom: 3rem;
}
.section-title-wrap .section-title { margin-bottom: 0; }
.section-title-accent {
    display: block;
    width: 52px;
    height: 4px;
    background: linear-gradient(90deg, #2563eb, #f59e0b);
    border-radius: 2px;
    margin: 0.75rem auto 0;
}

/* ======================== BUTTONS ======================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.85rem;
    border-radius: 10px;
    font-size: 0.97rem;
    font-weight: 700;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.22s ease;
    text-decoration: none;
    white-space: nowrap;
    letter-spacing: 0.01em;
}
.btn:hover { text-decoration: none; transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn--primary {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 4px 14px rgba(37,99,235,0.35);
}
.btn--primary:hover {
    background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
    box-shadow: 0 6px 20px rgba(37,99,235,0.45);
    color: #fff;
}

.btn--outline { background: transparent; color: #2563eb; border-color: #2563eb; }
.btn--outline:hover { background: #2563eb; color: #fff; box-shadow: 0 4px 14px rgba(37,99,235,0.25); }

.btn--outline-white { background: transparent; color: #fff; border-color: rgba(255,255,255,0.65); }
.btn--outline-white:hover { background: rgba(255,255,255,0.15); color: #fff; border-color: #fff; }

.btn--lg { padding: 1.05rem 2.35rem; font-size: 1.05rem; border-radius: 12px; }
.btn--block { display: flex; justify-content: center; width: 100%; }

.cta-buttons { display: flex; gap: 1rem; flex-wrap: wrap; justify-content: center; }

/* ======================== HEADER ======================== */
.site-header {
    background: linear-gradient(135deg, #0f2447 0%, #1a3a6b 100%);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 16px rgba(0,0,0,0.25);
    border-bottom: 1px solid rgba(255,255,255,0.07);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 1rem;
}

/* ── Logo (header) ── */
.brand-logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: #fff;
    text-decoration: none;
    font-size: 1.45rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    flex-shrink: 0;
}
.brand-logo:hover { text-decoration: none; opacity: 0.92; }
.brand-icon {
    color: #f59e0b;
    font-size: 1.6rem;
    filter: drop-shadow(0 0 6px rgba(245,158,11,0.5));
}
.brand-text strong { color: #f59e0b; }

.main-nav { display: flex; align-items: center; gap: 0.2rem; }

.nav-link {
    color: rgba(255,255,255,0.8);
    padding: 0.55rem 1rem;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    transition: background 0.2s, color 0.2s;
    text-decoration: none;
}
.nav-link:hover { background: rgba(255,255,255,0.13); color: #fff; text-decoration: none; }

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}
.mobile-menu-toggle span {
    display: block;
    width: 26px;
    height: 2.5px;
    background: #fff;
    border-radius: 2px;
    transition: transform 0.22s, opacity 0.22s;
}
.mobile-menu-toggle.is-active span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.mobile-menu-toggle.is-active span:nth-child(2) { opacity: 0; }
.mobile-menu-toggle.is-active span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* ======================== FOOTER ======================== */
.site-footer {
    background: linear-gradient(180deg, #0c1e3a 0%, #0a1628 100%);
    color: rgba(255,255,255,0.7);
    margin-top: 5rem;
    border-top: 1px solid rgba(255,255,255,0.06);
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 2rem;
    padding: 3.5rem 0 2.5rem;
    flex-wrap: wrap;
}

/* ── Logo (footer) ── */
.brand-logo--footer {
    font-size: 1.35rem;
    margin-bottom: 0.85rem;
    letter-spacing: -0.03em;
}

.footer-tagline { color: rgba(255,255,255,0.45); font-size: 0.9rem; max-width: 300px; line-height: 1.7; }

.footer-nav { display: flex; gap: 1.5rem; flex-wrap: wrap; align-items: center; }
.footer-nav a { color: rgba(255,255,255,0.55); font-size: 0.9rem; transition: color 0.2s; font-weight: 500; }
.footer-nav a:hover { color: #f59e0b; text-decoration: none; }

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding: 1.35rem 0;
    text-align: center;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.35);
}

.footer-dev-link {
    color: #f59e0b;
    font-weight: 600;
    transition: opacity 0.2s;
}
.footer-dev-link:hover { opacity: 0.8; text-decoration: none; }

/* ======================== PAGE HERO ======================== */
.page-hero {
    background: linear-gradient(135deg, #0f2447 0%, #1a3a6b 50%, #2563eb 100%);
    color: #fff;
    padding: 5rem 0 4rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}

.page-hero--light { background: linear-gradient(135deg, #0f2447 0%, #1a3a6b 100%); }
.page-hero h1 { color: #fff; margin-bottom: 1.1rem; }
.page-hero-tagline { font-size: 1.15rem; color: rgba(255,255,255,0.82); max-width: 640px; margin: 0 auto; line-height: 1.75; }

.article-count {
    display: inline-block;
    margin-top: 1.35rem;
    background: rgba(255,255,255,0.13);
    backdrop-filter: blur(4px);
    color: #fff;
    padding: 0.4rem 1.1rem;
    border-radius: 100px;
    font-size: 0.9rem;
    font-weight: 600;
    border: 1px solid rgba(255,255,255,0.2);
}

/* ======================== CALCULATOR HERO ======================== */
.calculator-hero {
    background: linear-gradient(160deg, #0f2447 0%, #1a3a6b 50%, #1e4590 100%);
    padding: 3.5rem 0 5rem;
    position: relative;
    overflow: hidden;
}
.calculator-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}

.calculator-header { text-align: center; margin-bottom: 2.25rem; position: relative; }
.calculator-title { color: #fff; font-size: clamp(1.7rem, 3.5vw, 2.35rem); font-weight: 800; }
.calculator-subtitle { color: rgba(255,255,255,0.72); margin-top: 0.6rem; font-size: 1.05rem; }

.calculator-card {
    background: #fff;
    border-radius: 20px;
    box-shadow: 0 25px 70px rgba(0,0,0,0.3), 0 0 0 1px rgba(255,255,255,0.05);
    overflow: hidden;
    position: relative;
}

/* Shape Tabs */
.shape-tabs {
    display: flex;
    background: #f8fafc;
    border-bottom: 2px solid #e2e8f0;
    overflow-x: auto;
    scrollbar-width: none;
}
.shape-tabs::-webkit-scrollbar { display: none; }

.shape-tab {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 1.6rem;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 0.92rem;
    font-weight: 700;
    color: #94a3b8;
    border-bottom: 3px solid transparent;
    white-space: nowrap;
    transition: color 0.2s, border-color 0.2s, background 0.2s;
    margin-bottom: -2px;
    letter-spacing: 0.01em;
}
.shape-tab:hover { color: #2563eb; background: rgba(37,99,235,0.04); }
.shape-tab.active {
    color: #2563eb;
    border-bottom-color: #2563eb;
    background: rgba(37,99,235,0.05);
}

/* Calculator Body */
.calculator-body {
    display: grid;
    grid-template-columns: 55% 45%;
    gap: 0;
    min-height: 440px;
}

.calc-form {
    padding: 2.25rem;
    border-right: 1px solid #e2e8f0;
    overflow-y: auto;
}

/* Form Sections */
.form-section { margin-bottom: 1.85rem; }
.form-section:last-of-type { margin-bottom: 0; }
.form-section-title {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #94a3b8;
    margin-bottom: 0.9rem;
    font-weight: 800;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid #f1f5f9;
}

.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-group label { font-size: 0.88rem; font-weight: 700; color: #374151; }

.input-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

.input-with-unit {
    display: flex;
    border: 1.5px solid #e2e8f0;
    border-radius: 10px;
    overflow: hidden;
    transition: border-color 0.2s, box-shadow 0.2s;
    background: #fff;
}
.input-with-unit:focus-within {
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}

.input-with-unit input {
    flex: 1;
    padding: 0.65rem 0.85rem;
    border: none;
    outline: none;
    font-size: 0.97rem;
    color: #1e293b;
    min-width: 0;
    background: transparent;
    font-family: 'Inter', sans-serif;
    font-weight: 500;
}

.input-with-unit select {
    padding: 0.65rem 0.55rem;
    border: none;
    border-left: 1px solid #e2e8f0;
    background: #f8fafc;
    font-size: 0.82rem;
    color: #374151;
    cursor: pointer;
    outline: none;
    font-weight: 700;
    min-width: 62px;
    font-family: 'Inter', sans-serif;
}

input[type="number"], .full-select {
    width: 100%;
    padding: 0.7rem 0.9rem;
    border: 1.5px solid #e2e8f0;
    border-radius: 10px;
    font-size: 0.97rem;
    color: #1e293b;
    background: #fff;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
    appearance: auto;
    font-family: 'Inter', sans-serif;
}
input[type="number"]:focus, .full-select:focus {
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}

.optional-tag {
    font-size: 0.72rem;
    color: #94a3b8;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    background: #f1f5f9;
    padding: 0.1rem 0.5rem;
    border-radius: 100px;
    margin-left: 0.4rem;
}

.field-error { font-size: 0.78rem; color: #dc2626; min-height: 1em; font-weight: 500; }

.shape-inputs { display: block; }
.shape-inputs.hidden { display: none; }
.hidden { display: none !important; }

.calc-buttons { display: flex; gap: 0.75rem; margin-top: 1.75rem; }
.calc-buttons .btn { flex: 1; justify-content: center; }

/* Results Panel */
.calc-results {
    padding: 2.25rem;
    background: linear-gradient(160deg, #f8fafc 0%, #f0f4ff 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.results-placeholder {
    text-align: center;
    color: #94a3b8;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}
.results-placeholder p { font-size: 0.93rem; line-height: 1.8; }
.results-placeholder strong { color: #64748b; }

.results-content { width: 100%; }
.results-title {
    color: #1a3a6b;
    font-size: 1rem;
    font-weight: 800;
    margin-bottom: 1.1rem;
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.75rem;
    color: #94a3b8;
}

.result-cards { display: flex; flex-direction: column; gap: 0.75rem; }

.result-card {
    background: #fff;
    border-radius: 12px;
    padding: 1rem 1.25rem;
    border: none;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06), 0 0 0 1px rgba(0,0,0,0.04);
    position: relative;
    overflow: hidden;
}
.result-card::before {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 4px;
}
.result-card--area::before   { background: linear-gradient(180deg, #3b82f6, #2563eb); }
.result-card--volume::before { background: linear-gradient(180deg, #10b981, #059669); }
.result-card--weight::before { background: linear-gradient(180deg, #f59e0b, #d97706); }
.result-card--cost::before   { background: linear-gradient(180deg, #8b5cf6, #7c3aed); }

.result-label {
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #94a3b8;
    font-weight: 800;
    margin-bottom: 0.3rem;
}
.result-value { font-size: 1.3rem; font-weight: 800; color: #1e293b; letter-spacing: -0.01em; }
.result-sub { font-size: 0.85rem; color: #64748b; margin-top: 0.15rem; font-weight: 500; }

.results-note { font-size: 0.76rem; color: #94a3b8; margin-top: 1.1rem; text-align: center; font-style: italic; line-height: 1.6; }

/* ======================== INTRO SECTION ======================== */
.intro-section { background: #fff; padding: 5rem 0 2.5rem; text-align: center; }
.intro-headline { color: #1a3a6b; margin-bottom: 1.1rem; }
.intro-text { max-width: 740px; margin: 0 auto; color: #475569; font-size: 1.1rem; line-height: 1.85; }

/* ======================== HIGHLIGHT STRIP ======================== */
.highlight-strip {
    background: linear-gradient(90deg, #1a3a6b 0%, #2563eb 100%);
    padding: 1.75rem 0;
}
.highlight-list {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.6rem 2.5rem;
}
.highlight-list li { color: rgba(255,255,255,0.92); font-weight: 600; font-size: 0.93rem; }
.highlight-icon { color: #f59e0b; margin-right: 0.4rem; font-weight: 900; }

/* ======================== FEATURES SECTION ======================== */
.features-section { padding: 5.5rem 0; background: #f8fafc; }

.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.75rem; }

.feature-card {
    background: #fff;
    border-radius: 16px;
    padding: 2.25rem;
    border: 1px solid #e8edf5;
    transition: box-shadow 0.25s, transform 0.25s;
    position: relative;
    overflow: hidden;
}
.feature-card::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, #2563eb, #f59e0b);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
    border-radius: 0 0 16px 16px;
}
.feature-card:hover { box-shadow: 0 12px 32px rgba(37,99,235,0.12); transform: translateY(-4px); }
.feature-card:hover::after { transform: scaleX(1); }

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.4rem;
    color: #2563eb;
    box-shadow: 0 4px 12px rgba(37,99,235,0.15);
}

.feature-card h3 { color: #1a3a6b; margin-bottom: 0.7rem; font-size: 1.05rem; }
.feature-card p { color: #64748b; font-size: 0.93rem; line-height: 1.75; }

/* ======================== HOW-TO SECTION ======================== */
.how-to-section {
    padding: 5.5rem 0 6rem;
    background: linear-gradient(180deg, #f8fafc 0%, #f0f5ff 100%);
    position: relative;
}

.section-subtitle {
    text-align: center;
    color: #64748b;
    font-size: 1.05rem;
    margin-top: 0.5rem;
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
}

/* 3 step cards + 2 connectors per row = 8 columns total */
.steps-grid {
    display: grid;
    grid-template-columns: 1fr 40px 1fr 40px 1fr;
    grid-template-rows: auto auto;
    gap: 1.5rem 0;
    align-items: center;
}

/* ── Step card ── */
.step-card {
    background: #fff;
    border-radius: 18px;
    border: 1px solid #e2e8f0;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0,0,0,0.06);
    transition: box-shadow 0.25s, transform 0.25s;
    height: 100%;
}
.step-card:hover {
    box-shadow: 0 12px 32px rgba(37,99,235,0.13);
    transform: translateY(-4px);
}

/* Header band — row 1 (navy→blue) */
.step-card-header {
    background: linear-gradient(135deg, #1a3a6b 0%, #2563eb 100%);
    padding: 1.4rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Header band — row 2 (amber→orange) */
.step-card-header--alt {
    background: linear-gradient(135deg, #b45309 0%, #f59e0b 100%);
}

.step-badge {
    font-size: 1.9rem;
    font-weight: 900;
    color: rgba(255,255,255,0.22);
    line-height: 1;
    letter-spacing: -0.04em;
    font-variant-numeric: tabular-nums;
}

.step-badge--alt { color: rgba(255,255,255,0.28); }

.step-card-icon {
    width: 52px;
    height: 52px;
    background: rgba(255,255,255,0.15);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    backdrop-filter: blur(4px);
    flex-shrink: 0;
}

/* Card body */
.step-card-body { padding: 1.5rem 1.5rem 1.75rem; }

.step-card-body h3 {
    color: #1a3a6b;
    font-size: 1.05rem;
    font-weight: 800;
    margin-bottom: 0.55rem;
    letter-spacing: -0.01em;
}
.step-card-body p {
    color: #64748b;
    font-size: 0.9rem;
    line-height: 1.75;
}

/* ── Connector arrows between cards ── */
.step-connector {
    display: flex;
    align-items: center;
    justify-content: center;
    color: #2563eb;
    opacity: 0.45;
    padding: 0 0.25rem;
}

/* ── Align row 2 (steps 4–6) correctly in the 5-column grid ── */
/* Steps 1,3,5 are in columns 1,3,5; connectors in 2,4 */
/* Row 2 steps need to span the same columns */

/* ======================== TIPS SECTION ======================== */
.tips-section { padding: 5.5rem 0; background: #f1f5f9; }

.tips-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }

.tips-card {
    background: #fff;
    border-radius: 16px;
    padding: 2.25rem;
    border: 1px solid #e8edf5;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.tips-card h3 {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    color: #1a3a6b;
    margin-bottom: 1.35rem;
    font-size: 1.05rem;
    padding-bottom: 0.9rem;
    border-bottom: 2px solid #f1f5f9;
}

.tips-card ul { display: flex; flex-direction: column; gap: 0.8rem; }
.tips-card li {
    color: #475569;
    font-size: 0.92rem;
    padding-left: 1.35rem;
    position: relative;
    line-height: 1.65;
}
.tips-card li::before {
    content: '›';
    position: absolute;
    left: 0;
    color: #2563eb;
    font-weight: 900;
    font-size: 1.1rem;
    line-height: 1.5;
}

/* ======================== MID CTA ======================== */
.mid-cta-section { padding: 4.5rem 0; background: #fff; }

.mid-cta-card {
    background: linear-gradient(135deg, #0f2447 0%, #1a3a6b 40%, #2563eb 100%);
    border-radius: 20px;
    padding: 4rem 3rem;
    text-align: center;
    color: #fff;
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(37,99,235,0.25);
}
.mid-cta-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}
.mid-cta-card h2 { color: #fff; margin-bottom: 0.75rem; position: relative; }
.mid-cta-card p { color: rgba(255,255,255,0.78); margin-bottom: 2.25rem; font-size: 1.1rem; position: relative; }

/* ======================== FAQ SECTION ======================== */
.faq-section { padding: 5.5rem 0; background: #f8fafc; }

.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; }

.faq-item {
    border-bottom: 1px solid #e8edf5;
    background: #fff;
    margin-bottom: 0.5rem;
    border-radius: 12px;
    border: 1px solid #e8edf5;
    overflow: hidden;
    box-shadow: 0 1px 4px rgba(0,0,0,0.04);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    background: none;
    border: none;
    padding: 1.25rem 1.5rem;
    text-align: left;
    cursor: pointer;
    font-size: 0.97rem;
    font-weight: 700;
    color: #1e293b;
    gap: 1rem;
    transition: color 0.2s, background 0.2s;
    font-family: 'Inter', sans-serif;
}
.faq-question:hover { color: #2563eb; background: #f8fafc; }
.faq-question[aria-expanded="true"] { color: #2563eb; background: #f0f5ff; }
.faq-question[aria-expanded="true"] .faq-chevron { transform: rotate(180deg); }

.faq-chevron { flex-shrink: 0; transition: transform 0.22s; color: #94a3b8; }

.faq-answer { display: none; padding: 0 1.5rem 1.35rem; }
.faq-answer[style*="block"] { display: block; }
.faq-answer p { color: #475569; line-height: 1.8; font-size: 0.95rem; }

/* ======================== FINAL CTA ======================== */
.final-cta-section {
    padding: 5.5rem 0;
    background: linear-gradient(135deg, #0f2447 0%, #1a3a6b 50%, #1e3a8a 100%);
    text-align: center;
    color: #fff;
    position: relative;
    overflow: hidden;
}
.final-cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}
.final-cta-section h2 { color: #fff; margin-bottom: 0.8rem; position: relative; }
.final-cta-section p { color: rgba(255,255,255,0.78); font-size: 1.1rem; margin-bottom: 2.25rem; position: relative; }

/* ======================== ABOUT PAGE (NEW) ======================== */

.about-section-eyebrow {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: #2563eb;
    background: linear-gradient(135deg, #dbeafe, #bfdbfe);
    padding: 0.28rem 0.85rem;
    border-radius: 100px;
    margin-bottom: 0.85rem;
}

/* --- Intro --- */
.about-intro-section {
    padding: 5rem 0;
    background: #fff;
}

.about-intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-intro-text h2 {
    color: #1a3a6b;
    margin-bottom: 1.1rem;
}

.about-intro-text p {
    color: #475569;
    line-height: 1.85;
    margin-bottom: 1rem;
    font-size: 1.02rem;
}

.about-intro-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 1.85rem;
}

.about-intro-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.1rem;
}

.ais-card {
    background: linear-gradient(160deg, #f8fafc, #f0f5ff);
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    padding: 1.5rem;
    text-align: center;
    transition: box-shadow 0.2s, transform 0.2s;
}
.ais-card:hover { box-shadow: 0 8px 24px rgba(37,99,235,0.1); transform: translateY(-3px); }

.ais-icon {
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    margin: 0 auto 0.85rem;
    box-shadow: 0 4px 12px rgba(37,99,235,0.25);
}

.ais-value {
    font-size: 1.15rem;
    font-weight: 900;
    color: #1a3a6b;
    letter-spacing: -0.02em;
    margin-bottom: 0.25rem;
}

.ais-label {
    font-size: 0.8rem;
    color: #64748b;
    font-weight: 500;
    line-height: 1.4;
}

/* --- Purpose --- */
.about-purpose-section {
    padding: 5.5rem 0;
    background: linear-gradient(180deg, #f8fafc 0%, #f0f5ff 100%);
}

.about-purpose-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-purpose-text h2 {
    color: #1a3a6b;
    margin-bottom: 1rem;
}

.about-purpose-text p {
    color: #475569;
    line-height: 1.85;
    font-size: 1rem;
}

.purpose-questions {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 8px 28px rgba(0,0,0,0.07);
}

.pq-header {
    background: linear-gradient(135deg, #1a3a6b, #2563eb);
    color: #fff;
    font-size: 0.78rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 1rem 1.5rem;
}

.pq-list { display: flex; flex-direction: column; }

.pq-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid #f1f5f9;
    transition: background 0.15s;
}
.pq-item:last-child { border-bottom: none; }
.pq-item:hover { background: #f8fafc; }

.pq-num {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, #dbeafe, #bfdbfe);
    color: #2563eb;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.72rem;
    font-weight: 900;
    flex-shrink: 0;
    letter-spacing: 0.02em;
}

.pq-text {
    color: #1e293b;
    font-size: 0.95rem;
    font-weight: 600;
    line-height: 1.5;
}

/* --- Use Cases --- */
.about-usecases-section {
    padding: 5.5rem 0;
    background: #fff;
}

.usecases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1.35rem;
}

.usecase-card {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    padding: 1.85rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    transition: box-shadow 0.25s, transform 0.25s;
    position: relative;
    overflow: hidden;
}
.usecase-card::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, #2563eb, #f59e0b);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}
.usecase-card:hover { box-shadow: 0 12px 32px rgba(37,99,235,0.1); transform: translateY(-4px); }
.usecase-card:hover::after { transform: scaleX(1); }

.uc-icon {
    width: 52px;
    height: 52px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.usecase-card h3 {
    color: #1a3a6b;
    font-size: 1rem;
    font-weight: 800;
    margin: 0;
}

.usecase-card p {
    color: #64748b;
    font-size: 0.88rem;
    line-height: 1.7;
    margin: 0;
}

/* --- USA Banner --- */
.about-usa-section {
    padding: 4rem 0;
    background: #f8fafc;
}

.usa-banner {
    background: linear-gradient(135deg, #0f2447 0%, #1a3a6b 50%, #2563eb 100%);
    border-radius: 20px;
    padding: 3.5rem;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 3rem;
    align-items: center;
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(37,99,235,0.25);
}
.usa-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}

.usa-banner-content {
    display: flex;
    align-items: flex-start;
    gap: 1.75rem;
    position: relative;
}

.usa-banner-icon {
    width: 70px;
    height: 70px;
    background: rgba(255,255,255,0.12);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #f59e0b;
    flex-shrink: 0;
    backdrop-filter: blur(4px);
    border: 1px solid rgba(255,255,255,0.1);
}

.usa-banner-units {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    flex-shrink: 0;
    position: relative;
}

.ubu-item {
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 10px;
    padding: 0.75rem 1.25rem;
    text-align: center;
    backdrop-filter: blur(4px);
    min-width: 140px;
}

.ubu-unit {
    display: block;
    color: #fff;
    font-size: 0.97rem;
    font-weight: 800;
    letter-spacing: -0.01em;
}

.ubu-desc {
    display: block;
    color: rgba(255,255,255,0.55);
    font-size: 0.75rem;
    margin-top: 0.15rem;
    font-weight: 500;
}

/* --- Info Topics --- */
.about-info-section {
    padding: 5.5rem 0;
    background: linear-gradient(180deg, #f0f5ff 0%, #f8fafc 100%);
}

.info-topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.info-topic-card {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    transition: box-shadow 0.25s, transform 0.25s;
    position: relative;
    overflow: hidden;
}
.info-topic-card::before {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 4px;
    background: linear-gradient(180deg, #2563eb, #f59e0b);
    opacity: 0;
    transition: opacity 0.25s;
}
.info-topic-card:hover { box-shadow: 0 10px 28px rgba(37,99,235,0.1); transform: translateY(-3px); }
.info-topic-card:hover::before { opacity: 1; }

.itc-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #dbeafe, #bfdbfe);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #2563eb;
    box-shadow: 0 3px 8px rgba(37,99,235,0.15);
}

.info-topic-card h3 {
    color: #1a3a6b;
    font-size: 1rem;
    font-weight: 800;
    margin: 0;
}

.info-topic-card p {
    color: #64748b;
    font-size: 0.89rem;
    line-height: 1.7;
    margin: 0;
}

/* --- Our Approach --- */
.about-approach-section {
    padding: 5.5rem 0;
    background: #fff;
}

.approach-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.approach-text-col h2 {
    color: #1a3a6b;
    margin-bottom: 1rem;
}

.approach-text-col p {
    color: #475569;
    line-height: 1.85;
    font-size: 1rem;
}

.approach-factors {
    background: linear-gradient(160deg, #f8fafc, #f0f5ff);
    border: 1px solid #e2e8f0;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0,0,0,0.05);
}

.af-header {
    background: linear-gradient(135deg, #1a3a6b, #2563eb);
    color: #fff;
    font-size: 0.78rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 1rem 1.5rem;
}

.af-list {
    padding: 1.25rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.1rem;
}

.af-item {
    display: flex;
    align-items: flex-start;
    gap: 0.9rem;
}

.af-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, #dbeafe, #bfdbfe);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #2563eb;
    flex-shrink: 0;
}

.af-item strong {
    display: block;
    color: #1a3a6b;
    font-size: 0.9rem;
    margin-bottom: 0.2rem;
}

.af-item p {
    color: #64748b;
    font-size: 0.82rem;
    line-height: 1.6;
    margin: 0;
}

.af-disclaimer {
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
    margin: 0 1.5rem 1.25rem;
    background: linear-gradient(135deg, #fffbeb, #fef3c7);
    border: 1px solid #fde68a;
    border-radius: 10px;
    padding: 0.85rem 1rem;
    color: #92400e;
    font-size: 0.82rem;
    line-height: 1.6;
    font-weight: 500;
}
.af-disclaimer svg { color: #f59e0b; flex-shrink: 0; margin-top: 1px; }

/* --- Who We Help --- */
.about-users-section {
    padding: 5.5rem 0;
    background: #f8fafc;
}

.users-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
    gap: 1.5rem;
}

.user-card {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 18px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    transition: box-shadow 0.25s, transform 0.25s;
    text-align: center;
}
.user-card:hover { box-shadow: 0 12px 32px rgba(37,99,235,0.1); transform: translateY(-4px); }

.user-card-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    box-shadow: 0 6px 16px rgba(0,0,0,0.18);
}

.user-card h3 {
    color: #1a3a6b;
    font-size: 1.05rem;
    font-weight: 800;
    margin: 0;
}

.user-card p {
    color: #64748b;
    font-size: 0.88rem;
    line-height: 1.7;
    margin: 0;
    flex: 1;
}

.user-card-tag {
    font-size: 0.74rem;
    color: #2563eb;
    font-weight: 700;
    background: linear-gradient(135deg, #dbeafe, #bfdbfe);
    padding: 0.3rem 0.75rem;
    border-radius: 100px;
    display: inline-block;
    letter-spacing: 0.02em;
}

/* --- Commitment --- */
.about-commitment-section {
    padding: 4.5rem 0;
    background: #fff;
}

.commitment-card {
    background: linear-gradient(135deg, #0f2447 0%, #1a3a6b 40%, #2563eb 100%);
    border-radius: 22px;
    padding: 3.5rem;
    color: #fff;
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(37,99,235,0.25);
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 3rem;
    align-items: center;
}
.commitment-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}

.commitment-content {
    display: flex;
    align-items: flex-start;
    gap: 1.75rem;
    position: relative;
}

.commitment-icon {
    width: 72px;
    height: 72px;
    background: rgba(255,255,255,0.12);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #f59e0b;
    flex-shrink: 0;
    filter: drop-shadow(0 0 8px rgba(245,158,11,0.4));
}

.commitment-content h2 {
    color: #fff;
    margin-bottom: 0.85rem;
}
.commitment-content p {
    color: rgba(255,255,255,0.78);
    line-height: 1.85;
    font-size: 1rem;
}

.commitment-pillars {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    flex-shrink: 0;
    position: relative;
}

.cp-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 10px;
    padding: 0.75rem 1.1rem;
    font-size: 0.9rem;
    font-weight: 700;
    color: #fff;
    white-space: nowrap;
    backdrop-filter: blur(4px);
}

.cp-icon {
    width: 32px;
    height: 32px;
    background: rgba(255,255,255,0.15);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #f59e0b;
    flex-shrink: 0;
}

/* --- Contact CTA --- */
.about-contact-section {
    padding: 4.5rem 0 5.5rem;
    background: #f8fafc;
}

.about-contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.75rem;
}

.about-contact-card {
    border-radius: 18px;
    padding: 2.75rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    text-align: center;
}

.about-contact-card--primary {
    background: #fff;
    border: 1px solid #e2e8f0;
    box-shadow: 0 8px 24px rgba(0,0,0,0.06);
}

.about-contact-card--secondary {
    background: linear-gradient(160deg, #f0f5ff, #e8edf5);
    border: 1px solid #c7d7f5;
}

.acc-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, #dbeafe, #bfdbfe);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #2563eb;
    margin: 0 auto;
    box-shadow: 0 4px 14px rgba(37,99,235,0.2);
}

.about-contact-card h3 {
    color: #1a3a6b;
    font-size: 1.15rem;
    font-weight: 800;
    margin: 0;
}

.about-contact-card p {
    color: #64748b;
    font-size: 0.93rem;
    line-height: 1.75;
    margin: 0;
    flex: 1;
}

/* ======================== ABOUT PAGE (LEGACY) ======================== */
.about-section { padding: 4.5rem 0 5.5rem; }

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-bottom: 4.5rem;
}

.stat-card {
    background: linear-gradient(160deg, #fff 0%, #f8fafc 100%);
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    padding: 2.25rem;
    text-align: center;
    box-shadow: 0 4px 16px rgba(0,0,0,0.06);
    transition: transform 0.2s, box-shadow 0.2s;
}
.stat-card:hover { transform: translateY(-3px); box-shadow: 0 10px 28px rgba(37,99,235,0.12); }

.stat-value {
    font-size: clamp(2.2rem, 5vw, 3.2rem);
    font-weight: 900;
    background: linear-gradient(135deg, #2563eb, #1a3a6b);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 0.45rem;
}
.stat-label { font-size: 1rem; font-weight: 800; color: #1a3a6b; margin-bottom: 0.5rem; }
.stat-desc { font-size: 0.87rem; color: #64748b; line-height: 1.6; }

.content-block { padding: 3.5rem 0; border-bottom: 1px solid #e8edf5; }
.content-block--alt {
    background: linear-gradient(160deg, #f8fafc, #f0f5ff);
    padding: 2.5rem 2.5rem;
    border-radius: 16px;
    border: 1px solid #e2e8f0;
    margin: 2rem 0;
}

.content-block-inner h2 { color: #1a3a6b; margin-bottom: 1.1rem; }
.content-block-inner p { color: #475569; line-height: 1.85; margin-bottom: 1rem; }
.content-block-inner p:last-child { margin-bottom: 0; }

.styled-list { padding-left: 1.5rem; display: flex; flex-direction: column; gap: 0.55rem; margin-top: 0.85rem; }
.styled-list li { color: #475569; line-height: 1.7; list-style: disc; }

.gravel-types-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.25rem; margin: 1.75rem 0; }

.gravel-type-card {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 1.35rem;
    transition: box-shadow 0.2s;
}
.gravel-type-card:hover { box-shadow: 0 6px 18px rgba(0,0,0,0.08); }
.gravel-type-card h3 { color: #1a3a6b; margin-bottom: 0.5rem; font-size: 0.97rem; }
.density-badge {
    display: inline-block;
    background: linear-gradient(135deg, #dbeafe, #bfdbfe);
    color: #1d4ed8;
    font-size: 0.76rem;
    font-weight: 800;
    padding: 0.2rem 0.65rem;
    border-radius: 100px;
    margin-bottom: 0.65rem;
}
.gravel-type-card p { font-size: 0.87rem; color: #64748b; line-height: 1.65; }
.gravel-note { color: #64748b; font-size: 0.9rem; font-style: italic; margin-top: 0.5rem; }

.free-section { padding: 4rem 0 2rem; }
.free-card {
    background: linear-gradient(135deg, #0f2447 0%, #1a3a6b 50%, #2563eb 100%);
    border-radius: 20px;
    padding: 3.5rem;
    text-align: center;
    color: #fff;
    box-shadow: 0 20px 50px rgba(37,99,235,0.2);
    position: relative;
    overflow: hidden;
}
.free-card svg { margin: 0 auto 1.35rem; color: #f59e0b; filter: drop-shadow(0 0 8px rgba(245,158,11,0.5)); }
.free-card h2 { color: #fff; margin-bottom: 0.85rem; }
.free-card p { color: rgba(255,255,255,0.78); max-width: 600px; margin: 0 auto 2.25rem; font-size: 1.05rem; line-height: 1.85; }

/* ======================== BLOG LIST ======================== */
.blog-section { padding: 4.5rem 0 5.5rem; }

.featured-post {
    background: #fff;
    border-radius: 20px;
    border: 1px solid #e2e8f0;
    overflow: hidden;
    margin-bottom: 4rem;
    box-shadow: 0 8px 32px rgba(0,0,0,0.08);
    transition: box-shadow 0.25s;
}
.featured-post:hover { box-shadow: 0 16px 48px rgba(37,99,235,0.12); }

.featured-post-link {
    display: grid;
    grid-template-columns: 45% 55%;
    text-decoration: none;
    color: inherit;
    min-height: 320px;
}
.featured-post-link:hover { text-decoration: none; }

.featured-post-image {
    position: relative;
    overflow: hidden;
    background: #f1f5f9;
}
.featured-post-image img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s; }
.featured-post-link:hover .featured-post-image img { transform: scale(1.04); }

.featured-badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: #fff;
    font-size: 0.72rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 0.3rem 0.85rem;
    border-radius: 100px;
    box-shadow: 0 2px 8px rgba(245,158,11,0.4);
}

.featured-post-content { padding: 2.5rem 2.75rem; display: flex; flex-direction: column; justify-content: center; }
.featured-post-title { color: #1a3a6b; font-size: 1.65rem; margin: 0.85rem 0; line-height: 1.3; letter-spacing: -0.01em; }
.featured-post-excerpt { color: #475569; font-size: 0.97rem; line-height: 1.75; margin-bottom: 1rem; }

.post-meta { display: flex; gap: 1.35rem; flex-wrap: wrap; color: #94a3b8; font-size: 0.83rem; margin-bottom: 0.85rem; }
.post-meta span { display: flex; align-items: center; gap: 0.35rem; font-weight: 500; }

.post-tags { display: flex; flex-wrap: wrap; gap: 0.45rem; margin-top: 0.85rem; }
.tag {
    background: #e0f2fe;
    color: #0369a1;
    font-size: 0.76rem;
    font-weight: 700;
    padding: 0.22rem 0.7rem;
    border-radius: 100px;
    letter-spacing: 0.01em;
}
.tag--more { background: #f1f5f9; color: #64748b; }

.read-more-link {
    display: inline-flex;
    align-items: center;
    color: #2563eb;
    font-weight: 700;
    font-size: 0.9rem;
    margin-top: 1.1rem;
    gap: 0.3rem;
    transition: gap 0.2s;
}
.read-more-link:hover { text-decoration: none; gap: 0.55rem; }

.category-badge {
    display: inline-block;
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    color: #fff;
    font-size: 0.72rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    padding: 0.27rem 0.8rem;
    border-radius: 100px;
}
.category-badge--sm { font-size: 0.67rem; padding: 0.2rem 0.65rem; }

.blog-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 1.75rem; }

.blog-card {
    background: #fff;
    border-radius: 16px;
    border: 1px solid #e2e8f0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: box-shadow 0.25s, transform 0.25s;
}
.blog-card:hover { box-shadow: 0 12px 32px rgba(37,99,235,0.1); transform: translateY(-4px); }

.blog-card-image-link { display: block; overflow: hidden; }
.blog-card-image { width: 100%; height: 200px; object-fit: cover; transition: transform 0.4s; }
.blog-card:hover .blog-card-image { transform: scale(1.04); }

.image-placeholder {
    width: 100%;
    background: linear-gradient(135deg, #f1f5f9, #e8edf5);
    display: flex;
    align-items: center;
    justify-content: center;
}
.image-placeholder { height: 240px; }
.image-placeholder--card { height: 200px; }

.blog-card-body { padding: 1.6rem; flex: 1; display: flex; flex-direction: column; }
.blog-card-meta { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 0.75rem; flex-wrap: wrap; }
.post-date { color: #94a3b8; font-size: 0.8rem; font-weight: 500; }

.blog-card-title { font-size: 1.03rem; line-height: 1.4; margin-bottom: 0.75rem; letter-spacing: -0.01em; }
.blog-card-title a { color: #1a3a6b; transition: color 0.2s; }
.blog-card-title a:hover { color: #2563eb; text-decoration: none; }

.blog-card-excerpt { color: #64748b; font-size: 0.89rem; line-height: 1.72; flex: 1; margin-bottom: 0.85rem; }

/* Pagination */
.pagination { display: flex; justify-content: center; align-items: center; gap: 1.5rem; margin-top: 3.5rem; }
.page-link {
    display: inline-flex;
    align-items: center;
    padding: 0.65rem 1.35rem;
    border: 2px solid #2563eb;
    border-radius: 10px;
    color: #2563eb;
    font-weight: 700;
    font-size: 0.9rem;
    transition: background 0.2s, color 0.2s, box-shadow 0.2s;
}
.page-link:hover { background: #2563eb; color: #fff; text-decoration: none; box-shadow: 0 4px 12px rgba(37,99,235,0.25); }
.page-info { color: #64748b; font-size: 0.9rem; font-weight: 500; }

.empty-state { text-align: center; padding: 5rem; color: #94a3b8; }

/* ======================== BLOG DETAIL ======================== */
.breadcrumb { background: #f8fafc; border-bottom: 1px solid #e2e8f0; }
.breadcrumb-list {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.85rem 0;
    list-style: none;
    font-size: 0.86rem;
    flex-wrap: wrap;
}
.breadcrumb-list li { color: #94a3b8; font-weight: 500; }
.breadcrumb-list li:not(:last-child)::after { content: '/'; margin-left: 0.5rem; color: #cbd5e1; }
.breadcrumb-list a { color: #2563eb; }
.breadcrumb-list a:hover { text-decoration: underline; }

.blog-detail-layout { padding: 3.5rem 0 5.5rem; }
.blog-detail-inner { display: grid; grid-template-columns: 1fr 300px; gap: 3.5rem; align-items: start; }

.blog-article { min-width: 0; }
.article-header { margin-bottom: 2.25rem; }
.article-header .category-badge { margin-bottom: 1.1rem; }
.article-title { color: #1a3a6b; margin-bottom: 1rem; }
.article-meta { display: flex; gap: 1.35rem; flex-wrap: wrap; color: #64748b; font-size: 0.87rem; }
.article-meta span { display: flex; align-items: center; gap: 0.4rem; font-weight: 500; }

.article-featured-image { margin-bottom: 2.25rem; border-radius: 14px; overflow: hidden; box-shadow: 0 8px 24px rgba(0,0,0,0.1); }
.article-featured-image img { width: 100%; max-height: 480px; object-fit: cover; }

/* Table of Contents */
.toc-container {
    background: linear-gradient(160deg, #f0f9ff, #e8f4fe);
    border: 1px solid #bae6fd;
    border-radius: 14px;
    padding: 1.75rem;
    margin-bottom: 2.75rem;
}
.toc-title { font-size: 0.95rem; color: #0369a1; margin-bottom: 0.85rem; font-weight: 800; }
.toc-list { display: flex; flex-direction: column; gap: 0.45rem; }
.toc-item { font-size: 0.9rem; }
.toc-item--sub { padding-left: 1.25rem; }
.toc-item a { color: #2563eb; font-weight: 500; }
.toc-item a:hover { text-decoration: underline; }

/* Article Content */
.article-content { color: #374151; line-height: 1.85; font-size: 1.04rem; }
.article-content h2 { color: #1a3a6b; margin: 2.25rem 0 1rem; font-size: 1.5rem; }
.article-content h3 { color: #1e3a6b; margin: 1.75rem 0 0.75rem; font-size: 1.2rem; }
.article-content p { margin-bottom: 1.3rem; }
.article-content ul, .article-content ol { padding-left: 1.5rem; margin-bottom: 1.3rem; }
.article-content li { margin-bottom: 0.45rem; }
.article-content ul li { list-style: disc; }
.article-content ol li { list-style: decimal; }
.article-content img { border-radius: 10px; margin: 1.75rem 0; }
.article-content a { color: #2563eb; text-decoration: underline; }
.article-content blockquote {
    border-left: 4px solid #2563eb;
    margin: 1.75rem 0;
    padding: 1.25rem 1.75rem;
    background: linear-gradient(160deg, #f0f9ff, #e8f4fe);
    border-radius: 0 12px 12px 0;
    color: #475569;
    font-style: italic;
}
.article-content table { width: 100%; border-collapse: collapse; margin-bottom: 1.75rem; border-radius: 10px; overflow: hidden; }
.article-content th, .article-content td { border: 1px solid #e2e8f0; padding: 0.8rem 1rem; text-align: left; }
.article-content th { background: linear-gradient(135deg, #f0f5ff, #e8edf5); font-weight: 800; color: #1a3a6b; }

/* Article Tags & Share */
.article-tags { display: flex; align-items: center; flex-wrap: wrap; gap: 0.55rem; margin-top: 2.75rem; padding-top: 1.75rem; border-top: 1px solid #e2e8f0; }
.article-tags strong { color: #374151; font-weight: 700; }

.social-share { display: flex; align-items: center; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.5rem; padding-top: 1.5rem; border-top: 1px solid #e2e8f0; }
.share-label { font-weight: 800; color: #374151; font-size: 0.88rem; }

.share-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.55rem 1.1rem;
    border-radius: 8px;
    font-size: 0.84rem;
    font-weight: 700;
    color: #fff;
    text-decoration: none;
    transition: opacity 0.2s, transform 0.15s;
    font-family: 'Inter', sans-serif;
}
.share-btn:hover { opacity: 0.88; text-decoration: none; transform: translateY(-1px); }
.share-btn--facebook { background: #1877f2; }
.share-btn--twitter { background: #000; }
.share-btn--linkedin { background: #0a66c2; }
.share-btn--whatsapp { background: #25d366; }

/* Sidebar */
.blog-sidebar { position: sticky; top: 90px; }
.sidebar-card {
    background: linear-gradient(160deg, #f0f9ff, #e8f4fe);
    border: 1px solid #bae6fd;
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 4px 16px rgba(37,99,235,0.08);
}
.sidebar-card h3 { color: #1a3a6b; margin-bottom: 0.75rem; font-size: 1.05rem; }
.sidebar-card p { color: #64748b; font-size: 0.89rem; margin-bottom: 1.35rem; line-height: 1.7; }

/* Related Posts */
.related-posts { margin-top: 4.5rem; padding-top: 3.5rem; border-top: 1px solid #e2e8f0; }
.related-posts h2 { color: #1a3a6b; margin-bottom: 2.25rem; }
.related-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1.5rem; }

/* ======================== CONTACT PAGE (NEW) ======================== */

/* Help topics strip */
.contact-help-section {
    padding: 5rem 0 2.5rem;
    background: #fff;
}

.contact-help-header {
    text-align: center;
    margin-bottom: 3rem;
}
.contact-help-header .section-title { margin-bottom: 0; }

.contact-reasons-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
}

.contact-reason-card {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    padding: 1.85rem;
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    transition: box-shadow 0.25s, transform 0.25s;
    position: relative;
    overflow: hidden;
}
.contact-reason-card::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, #2563eb, #f59e0b);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}
.contact-reason-card:hover { box-shadow: 0 10px 28px rgba(37,99,235,0.1); transform: translateY(-3px); }
.contact-reason-card:hover::after { transform: scaleX(1); }

.crc-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #dbeafe, #bfdbfe);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #2563eb;
    flex-shrink: 0;
    box-shadow: 0 3px 8px rgba(37,99,235,0.15);
}

.contact-reason-card h3 {
    color: #1a3a6b;
    font-size: 0.97rem;
    font-weight: 800;
    margin: 0;
}

.contact-reason-card p {
    color: #64748b;
    font-size: 0.87rem;
    line-height: 1.7;
    margin: 0;
}

/* ---- Form section ---- */
.contact-form-section {
    padding: 2.5rem 0 5rem;
    background: #f8fafc;
}

.contact-form-layout {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 2.5rem;
    align-items: start;
}

/* Form card */
.contact-form-card {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 8px 28px rgba(0,0,0,0.07);
}

.cfc-header {
    display: flex;
    align-items: flex-start;
    gap: 1.1rem;
    padding: 2rem 2.25rem 1.75rem;
    border-bottom: 1px solid #f1f5f9;
    background: linear-gradient(160deg, #f8fafc, #f0f5ff);
}

.cfc-header-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(37,99,235,0.3);
}

.cfc-header h2 {
    color: #1a3a6b;
    font-size: 1.25rem;
    margin-bottom: 0.3rem;
}

.cfc-header p {
    color: #64748b;
    font-size: 0.88rem;
    line-height: 1.6;
    margin: 0;
}

/* Messages */
.form-messages { padding: 0 2.25rem; margin-top: 1.5rem; }

.form-message {
    display: flex;
    align-items: flex-start;
    gap: 0.65rem;
    padding: 0.9rem 1.1rem;
    border-radius: 10px;
    font-size: 0.9rem;
    font-weight: 600;
    line-height: 1.5;
    margin-bottom: 0.75rem;
}

.form-message--success {
    background: linear-gradient(135deg, #f0fdf4, #dcfce7);
    border: 1px solid #86efac;
    color: #15803d;
}
.form-message--success svg { color: #22c55e; flex-shrink: 0; }

.form-message--error {
    background: linear-gradient(135deg, #fef2f2, #fee2e2);
    border: 1px solid #fca5a5;
    color: #dc2626;
}
.form-message--error svg { color: #dc2626; flex-shrink: 0; }

/* Form fields */
.contact-form { padding: 2rem 2.25rem 2.25rem; }

.cf-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.1rem;
    margin-bottom: 1.1rem;
}

.cf-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    margin-bottom: 1.1rem;
}
.cf-group:last-of-type { margin-bottom: 0; }

.cf-label {
    font-size: 0.85rem;
    font-weight: 700;
    color: #374151;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.cf-required {
    color: #dc2626;
    font-size: 0.9rem;
    line-height: 1;
}

.cf-input-wrap {
    position: relative;
    display: flex;
    align-items: center;
}

.cf-input-icon {
    position: absolute;
    left: 0.9rem;
    color: #94a3b8;
    pointer-events: none;
    flex-shrink: 0;
}

.cf-input, .cf-textarea, .cf-select {
    width: 100%;
    padding: 0.75rem 0.9rem 0.75rem 2.5rem;
    border: 1.5px solid #e2e8f0;
    border-radius: 10px;
    font-size: 0.95rem;
    color: #1e293b;
    background: #fff;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
    font-family: 'Inter', sans-serif;
    appearance: auto;
}
.cf-input:focus, .cf-textarea:focus, .cf-select:focus {
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}
.cf-input--error {
    border-color: #dc2626 !important;
    box-shadow: 0 0 0 3px rgba(220,38,38,0.08) !important;
}

.cf-textarea {
    resize: vertical;
    min-height: 150px;
    line-height: 1.65;
    padding-top: 0.75rem;
    padding-left: 0.9rem;
}

.cf-error {
    font-size: 0.78rem;
    color: #dc2626;
    min-height: 1em;
    font-weight: 500;
}

.cf-privacy-note {
    display: flex;
    align-items: flex-start;
    gap: 0.55rem;
    background: linear-gradient(135deg, #f8fafc, #f0f5ff);
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    padding: 0.85rem 1rem;
    font-size: 0.81rem;
    color: #64748b;
    line-height: 1.65;
    margin: 1.35rem 0 1.5rem;
}
.cf-privacy-note svg { color: #94a3b8; flex-shrink: 0; margin-top: 2px; }

/* Info column */
.contact-info-col {
    display: flex;
    flex-direction: column;
    gap: 1.35rem;
    position: sticky;
    top: 90px;
}

/* Tips panel */
.contact-info-panel {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0,0,0,0.05);
}

.cip-header {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.95rem 1.35rem;
    background: linear-gradient(135deg, #1a3a6b, #2563eb);
    color: #fff;
    font-size: 0.8rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.cip-body {
    padding: 1.35rem;
}

.cip-body > p {
    color: #475569;
    font-size: 0.88rem;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.cip-list {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.cip-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
    font-size: 0.88rem;
    color: #475569;
    line-height: 1.5;
}
.cip-list li svg { color: #22c55e; flex-shrink: 0; margin-top: 3px; }
.cip-list li strong { color: #1a3a6b; }

/* Response card */
.contact-response-card {
    background: linear-gradient(135deg, #f0f5ff, #e8edf5);
    border: 1px solid #c7d7f5;
    border-radius: 14px;
    padding: 1.5rem;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.crc-response-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(37,99,235,0.25);
}

.crc-response-label {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #64748b;
    font-weight: 800;
    margin-bottom: 0.2rem;
}

.crc-response-value {
    font-size: 1.05rem;
    font-weight: 900;
    color: #1a3a6b;
    margin-bottom: 0.4rem;
    letter-spacing: -0.01em;
}

.crc-response-text p {
    color: #64748b;
    font-size: 0.83rem;
    line-height: 1.65;
    margin: 0;
}

/* Quick links card */
.contact-links-card {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.clc-title {
    padding: 0.85rem 1.25rem;
    font-size: 0.72rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #94a3b8;
    border-bottom: 1px solid #f1f5f9;
    background: #f8fafc;
}

.clc-links { display: flex; flex-direction: column; }

.clc-link {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    padding: 0.9rem 1.25rem;
    text-decoration: none;
    color: inherit;
    border-bottom: 1px solid #f1f5f9;
    transition: background 0.15s;
}
.clc-link:last-child { border-bottom: none; }
.clc-link:hover { background: #f8fafc; text-decoration: none; }
.clc-link:hover .clc-link-label { color: #2563eb; }

.clc-link-icon {
    width: 34px;
    height: 34px;
    background: linear-gradient(135deg, #dbeafe, #bfdbfe);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #2563eb;
    flex-shrink: 0;
}

.clc-link > div {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    flex: 1;
}

.clc-link-label {
    font-size: 0.9rem;
    font-weight: 700;
    color: #1a3a6b;
    transition: color 0.15s;
}

.clc-link-desc {
    font-size: 0.77rem;
    color: #94a3b8;
    font-weight: 500;
}

.clc-link > svg:last-child { color: #cbd5e1; flex-shrink: 0; }

/* Disclaimer */
.contact-disclaimer-section {
    padding: 0 0 4rem;
    background: #f8fafc;
}

.contact-disclaimer-card {
    background: linear-gradient(135deg, #fffbeb, #fef3c7);
    border: 1px solid #fde68a;
    border-radius: 16px;
    padding: 2.25rem;
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
}

.cdc-icon {
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, #f59e0b, #d97706);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(245,158,11,0.35);
}

.cdc-content { flex: 1; }

.cdc-content h3 {
    color: #92400e;
    font-size: 1.05rem;
    font-weight: 800;
    margin-bottom: 0.65rem;
}

.cdc-content p {
    color: #78350f;
    font-size: 0.9rem;
    line-height: 1.75;
    margin-bottom: 0.65rem;
}
.cdc-content p:last-child { margin-bottom: 0; }

.cdc-btn {
    color: #92400e;
    border-color: #f59e0b;
    flex-shrink: 0;
    align-self: center;
    white-space: nowrap;
}
.cdc-btn:hover { background: #f59e0b; color: #fff; border-color: #f59e0b; box-shadow: 0 4px 14px rgba(245,158,11,0.35); }

/* Thank you strip */
.contact-thanks-section {
    padding: 2rem 0;
    background: linear-gradient(90deg, #1a3a6b, #2563eb);
}

.contact-thanks-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    color: rgba(255,255,255,0.9);
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
}
.contact-thanks-inner svg { color: #f59e0b; flex-shrink: 0; }

/* ======================== CONTACT PAGE (LEGACY) ======================== */
.contact-section { padding: 4.5rem 0 5.5rem; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2.5rem; align-items: start; }

.contact-card {
    background: #fff;
    border-radius: 20px;
    padding: 2.75rem;
    border: 1px solid #e2e8f0;
    box-shadow: 0 8px 28px rgba(0,0,0,0.07);
    text-align: center;
}
.contact-card-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.75rem;
    color: #2563eb;
    box-shadow: 0 4px 16px rgba(37,99,235,0.15);
}
.contact-card h2 { color: #1a3a6b; margin-bottom: 0.85rem; }
.contact-card p { color: #64748b; margin-bottom: 1.75rem; line-height: 1.75; }

.contact-email-link {
    display: inline-block;
    font-size: 1.05rem;
    font-weight: 800;
    color: #2563eb;
    word-break: break-all;
    margin-bottom: 1rem;
}

.response-time { display: flex; align-items: center; justify-content: center; gap: 0.45rem; color: #64748b; font-size: 0.87rem; font-weight: 500; }

.contact-info-cards { display: flex; flex-direction: column; gap: 1.25rem; }

.info-card {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 14px;
    padding: 1.6rem;
    display: flex;
    gap: 1.1rem;
    align-items: flex-start;
    transition: box-shadow 0.2s;
}
.info-card:hover { box-shadow: 0 6px 18px rgba(0,0,0,0.07); }
.info-card svg { flex-shrink: 0; color: #2563eb; margin-top: 0.15rem; }
.info-card h3 { color: #1a3a6b; margin-bottom: 0.4rem; font-size: 0.97rem; }
.info-card p { color: #64748b; font-size: 0.88rem; line-height: 1.65; }

/* ======================== PRIVACY PAGE ======================== */
.privacy-section { padding: 4.5rem 0 5.5rem; }

.privacy-content { max-width: 800px; margin: 0 auto; }
.privacy-content h2 { color: #1a3a6b; margin: 2.75rem 0 0.85rem; font-size: 1.2rem; padding-bottom: 0.5rem; border-bottom: 2px solid #f1f5f9; }
.privacy-content p { color: #475569; line-height: 1.85; margin-bottom: 1rem; }
.privacy-content ul { padding-left: 1.5rem; margin-bottom: 1rem; }
.privacy-content li { color: #475569; line-height: 1.8; list-style: disc; margin-bottom: 0.45rem; }
.privacy-content a { color: #2563eb; }
.privacy-content a:hover { text-decoration: underline; }

.privacy-notice {
    display: flex;
    align-items: flex-start;
    gap: 0.85rem;
    background: linear-gradient(160deg, #f0fdf4, #dcfce7);
    border: 1px solid #86efac;
    border-radius: 12px;
    padding: 1.35rem 1.6rem;
    margin-bottom: 2.75rem;
    color: #166534;
    font-size: 0.95rem;
    line-height: 1.65;
    font-weight: 500;
}
.privacy-notice svg { flex-shrink: 0; color: #22c55e; }

/* ======================== 404 PAGE ======================== */
.error-page { padding: 8rem 0; text-align: center; }
.error-card { max-width: 480px; margin: 0 auto; }
.error-code {
    font-size: 8rem;
    font-weight: 900;
    line-height: 1;
    margin-bottom: 0.25rem;
    background: linear-gradient(135deg, #e2e8f0, #cbd5e1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.error-card h1 { color: #1a3a6b; margin-bottom: 1rem; }
.error-card p { color: #64748b; margin-bottom: 2.25rem; font-size: 1.05rem; }

/* ======================== INTRO USE CASES ======================== */
.intro-use-cases {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    justify-content: center;
    margin-top: 2rem;
}

.use-case-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: linear-gradient(135deg, #f0f5ff, #e8edf5);
    border: 1px solid #c7d7f5;
    color: #1a3a6b;
    font-size: 0.88rem;
    font-weight: 600;
    padding: 0.45rem 1rem;
    border-radius: 100px;
    transition: background 0.2s, transform 0.2s;
}
.use-case-pill:hover { background: linear-gradient(135deg,#dbeafe,#bfdbfe); transform: translateY(-1px); }
.use-case-pill svg { color: #2563eb; flex-shrink: 0; }

/* ======================== FORMULA SECTION ======================== */
.formula-section {
    padding: 5.5rem 0;
    background: #fff;
}

.formula-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
}

.formula-intro {
    color: #475569;
    line-height: 1.85;
    font-size: 1rem;
    margin-bottom: 2rem;
}

.formula-cards {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.formula-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: linear-gradient(135deg, #f8fafc, #f0f5ff);
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 1rem 1.35rem;
    transition: box-shadow 0.2s, transform 0.2s;
}
.formula-card:hover { box-shadow: 0 6px 18px rgba(37,99,235,0.1); transform: translateX(4px); }

.formula-card-icon {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(37,99,235,0.25);
}

.formula-card-label {
    font-size: 0.72rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #94a3b8;
    margin-bottom: 0.2rem;
}

.formula-card-eq {
    font-size: 0.97rem;
    font-weight: 700;
    color: #1a3a6b;
}

.formula-example-card {
    background: linear-gradient(135deg, #0f2447, #1a3a6b);
    border-radius: 16px;
    overflow: hidden;
    margin-bottom: 1.5rem;
    box-shadow: 0 12px 32px rgba(15,36,71,0.25);
}

.formula-example-header {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 1rem 1.5rem;
    background: rgba(255,255,255,0.08);
    color: #f59e0b;
    font-size: 0.82rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.formula-example-body {
    padding: 1.5rem;
}

.formula-example-scenario {
    color: rgba(255,255,255,0.82);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 1.25rem;
}

.formula-example-steps {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    margin-bottom: 1.25rem;
}

.formula-example-step {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    padding: 0.6rem 0.85rem;
    background: rgba(255,255,255,0.07);
    border-radius: 8px;
}

.formula-example-step.fes-result {
    background: rgba(245,158,11,0.18);
    border: 1px solid rgba(245,158,11,0.3);
}

.fes-num {
    width: 24px;
    height: 24px;
    background: rgba(255,255,255,0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 800;
    color: #fff;
    flex-shrink: 0;
}
.fes-result .fes-num { background: #f59e0b; }

.fes-text {
    color: rgba(255,255,255,0.85);
    font-size: 0.93rem;
}
.fes-text strong { color: #fff; }

.formula-example-note {
    color: rgba(255,255,255,0.55);
    font-size: 0.83rem;
    font-style: italic;
    line-height: 1.6;
}

.formula-table-card {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0,0,0,0.06);
}

.formula-table-header {
    background: linear-gradient(135deg, #f0f5ff, #e8edf5);
    padding: 0.85rem 1.25rem;
    font-size: 0.8rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #1a3a6b;
    border-bottom: 1px solid #e2e8f0;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}
.data-table th, .data-table td {
    padding: 0.75rem 1.25rem;
    text-align: left;
    font-size: 0.9rem;
    border-bottom: 1px solid #f1f5f9;
}
.data-table th {
    background: #f8fafc;
    font-weight: 800;
    color: #1a3a6b;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}
.data-table td { color: #475569; font-weight: 500; }
.data-table tbody tr:hover td { background: #f8fafc; }
.data-table tbody tr:last-child td { border-bottom: none; }

.formula-table-note {
    padding: 0.85rem 1.25rem;
    font-size: 0.83rem;
    color: #64748b;
    font-style: italic;
    border-top: 1px solid #f1f5f9;
    line-height: 1.6;
}

/* ======================== COVERAGE SECTION ======================== */
.coverage-section {
    padding: 5.5rem 0;
    background: linear-gradient(180deg, #f8fafc 0%, #f0f5ff 100%);
}

.coverage-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
}

.coverage-info {
    color: #475569;
    line-height: 1.85;
    font-size: 1rem;
}

.coverage-tip {
    display: flex;
    align-items: flex-start;
    gap: 0.65rem;
    background: linear-gradient(135deg, #fffbeb, #fef3c7);
    border: 1px solid #fde68a;
    border-radius: 10px;
    padding: 1rem 1.25rem;
    margin-top: 1.5rem;
    color: #92400e;
    font-size: 0.88rem;
    line-height: 1.65;
}
.coverage-tip svg { color: #f59e0b; flex-shrink: 0; margin-top: 2px; }

.coverage-table-card {
    background: #fff;
    border-radius: 16px;
    border: 1px solid #e2e8f0;
    overflow: hidden;
    box-shadow: 0 8px 28px rgba(0,0,0,0.07);
}

.coverage-table-header {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 1.1rem 1.5rem;
    background: linear-gradient(135deg, #1a3a6b, #2563eb);
    color: #fff;
    font-size: 0.82rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.coverage-rows {
    padding: 1.25rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.coverage-row {
    display: grid;
    grid-template-columns: 80px 1fr 90px;
    align-items: center;
    gap: 0.85rem;
}

.coverage-depth {
    font-size: 0.88rem;
    font-weight: 700;
    color: #1a3a6b;
    white-space: nowrap;
}

.coverage-bar-wrap {
    background: #f1f5f9;
    border-radius: 100px;
    height: 10px;
    overflow: hidden;
}

.coverage-bar {
    height: 100%;
    background: linear-gradient(90deg, #2563eb, #60a5fa);
    border-radius: 100px;
    transition: width 0.5s ease;
}

.coverage-sqft {
    font-size: 0.82rem;
    font-weight: 700;
    color: #2563eb;
    text-align: right;
    white-space: nowrap;
}

/* ======================== DEPTH GUIDE SECTION ======================== */
.depth-guide-section {
    padding: 5.5rem 0;
    background: #fff;
}

.depth-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1.5rem;
}

.depth-card {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    transition: box-shadow 0.25s, transform 0.25s;
    position: relative;
    overflow: hidden;
}
.depth-card::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, #2563eb, #f59e0b);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}
.depth-card:hover { box-shadow: 0 12px 32px rgba(37,99,235,0.1); transform: translateY(-4px); }
.depth-card:hover::after { transform: scaleX(1); }

.depth-card-icon {
    width: 52px;
    height: 52px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.depth-card-body h3 {
    color: #1a3a6b;
    font-size: 1rem;
    font-weight: 800;
    margin-bottom: 0.35rem;
}

.depth-range {
    display: inline-block;
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    color: #fff;
    font-size: 0.78rem;
    font-weight: 800;
    padding: 0.2rem 0.7rem;
    border-radius: 100px;
    margin-bottom: 0.5rem;
    letter-spacing: 0.02em;
}

.depth-card-body p {
    color: #64748b;
    font-size: 0.88rem;
    line-height: 1.7;
}

/* ======================== GRAVEL TYPES HOME ======================== */
.gravel-types-home-section {
    padding: 5.5rem 0;
    background: #f8fafc;
}

.gravel-types-home-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1.5rem;
}

.gravel-type-home-card {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 18px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    transition: box-shadow 0.25s, transform 0.25s;
    position: relative;
    overflow: hidden;
}
.gravel-type-home-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, #2563eb, #f59e0b);
    opacity: 0;
    transition: opacity 0.3s;
}
.gravel-type-home-card:hover { box-shadow: 0 14px 36px rgba(37,99,235,0.12); transform: translateY(-4px); }
.gravel-type-home-card:hover::before { opacity: 1; }

.gth-icon {
    width: 58px;
    height: 58px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.gravel-type-home-card h3 {
    color: #1a3a6b;
    font-size: 1.05rem;
    font-weight: 800;
    margin: 0;
}

.gth-tag {
    display: inline-block;
    background: #f0f5ff;
    color: #2563eb;
    font-size: 0.72rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 0.18rem 0.65rem;
    border-radius: 100px;
    border: 1px solid #bfdbfe;
    width: fit-content;
}

.gravel-type-home-card p {
    color: #64748b;
    font-size: 0.89rem;
    line-height: 1.7;
}

.gth-best {
    font-size: 0.78rem;
    font-weight: 700;
    color: #94a3b8;
    margin-top: 0.25rem;
    padding-top: 0.75rem;
    border-top: 1px solid #f1f5f9;
}

/* ======================== PROJECT ESTIMATES ======================== */
.project-estimates-section {
    padding: 5.5rem 0;
    background: linear-gradient(180deg, #f0f5ff 0%, #f8fafc 100%);
}

.project-desc-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.project-desc-card {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    transition: box-shadow 0.2s, transform 0.2s;
}
.project-desc-card:hover { box-shadow: 0 10px 28px rgba(37,99,235,0.1); transform: translateY(-3px); }

.pdc-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, #dbeafe, #bfdbfe);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #2563eb;
    margin: 0 auto 1.25rem;
    box-shadow: 0 4px 12px rgba(37,99,235,0.15);
}

.project-desc-card h3 {
    color: #1a3a6b;
    margin-bottom: 0.65rem;
    font-size: 1.05rem;
}
.project-desc-card p {
    color: #64748b;
    font-size: 0.9rem;
    line-height: 1.75;
}

.project-examples-table-wrap {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0,0,0,0.06);
}

.project-examples-header {
    background: linear-gradient(135deg, #1a3a6b, #2563eb);
    color: #fff;
    font-size: 0.82rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 1rem 1.5rem;
}

.project-examples-table { display: flex; flex-direction: column; }

.pet-row {
    display: grid;
    grid-template-columns: 160px 160px 100px 1fr;
    gap: 1rem;
    padding: 0.9rem 1.5rem;
    border-bottom: 1px solid #f1f5f9;
    align-items: center;
}
.pet-row:last-child { border-bottom: none; }

.pet-head {
    background: #f8fafc;
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #94a3b8;
}

.pet-cell { font-size: 0.9rem; color: #475569; }
.pet-head .pet-cell { color: #94a3b8; }
.pet-cell strong { color: #1a3a6b; }

.depth-badge {
    display: inline-block;
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    color: #fff;
    font-size: 0.78rem;
    font-weight: 800;
    padding: 0.22rem 0.65rem;
    border-radius: 100px;
}

/* ======================== CONVERSION SECTION ======================== */
.conversion-section {
    padding: 5.5rem 0;
    background: #fff;
}

.conversion-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.conversion-text p {
    color: #475569;
    line-height: 1.85;
    font-size: 1rem;
}

.conversion-formula {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    background: linear-gradient(135deg, #f0f5ff, #e8edf5);
    border: 1px solid #c7d7f5;
    border-radius: 12px;
    padding: 1.25rem 1.5rem;
    margin: 1.5rem 0;
}

.cf-label {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #94a3b8;
    font-weight: 800;
}

.cf-eq {
    font-size: 1.05rem;
    font-weight: 800;
    color: #1a3a6b;
}

.conversion-example-card {
    background: linear-gradient(135deg, #0f2447, #1a3a6b);
    border-radius: 14px;
    overflow: hidden;
    margin-bottom: 1.5rem;
    box-shadow: 0 8px 24px rgba(15,36,71,0.2);
}

.cec-header {
    background: rgba(255,255,255,0.08);
    padding: 0.85rem 1.35rem;
    color: #f59e0b;
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border-bottom: 1px solid rgba(255,255,255,0.07);
}

.cec-body { padding: 1.35rem; }

.cec-scenario {
    color: rgba(255,255,255,0.78);
    font-size: 0.92rem;
    margin-bottom: 0.85rem;
    line-height: 1.65;
}
.cec-scenario strong { color: #fff; }

.cec-math {
    font-size: 1.6rem;
    font-weight: 900;
    color: #f59e0b;
    margin-bottom: 0.75rem;
    letter-spacing: -0.02em;
}
.cec-math strong { color: #fff; }

.cec-note {
    color: rgba(255,255,255,0.5);
    font-size: 0.83rem;
    font-style: italic;
    line-height: 1.6;
}

.conversion-weight-table {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.cwt-header {
    background: #f8fafc;
    padding: 0.9rem 1.25rem;
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #64748b;
    border-bottom: 1px solid #e2e8f0;
}

.cwt-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1.25rem;
    border-bottom: 1px solid #f1f5f9;
    font-size: 0.9rem;
}
.cwt-row:last-child { border-bottom: none; }
.cwt-row span:first-child { color: #475569; font-weight: 500; }
.cwt-val { color: #2563eb; font-weight: 800; font-size: 0.85rem; }

/* ======================== ORDER SECTION ======================== */
.order-section {
    padding: 5.5rem 0;
    background: #f8fafc;
}

.order-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
    align-items: start;
}

.order-method, .order-options {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 18px;
    padding: 2.25rem;
    box-shadow: 0 4px 16px rgba(0,0,0,0.05);
}

.order-method-title {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    color: #1a3a6b;
    font-size: 1.05rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid #f1f5f9;
}
.order-method-title svg { color: #2563eb; }

.order-steps-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
    margin-bottom: 1.5rem;
}

.order-steps-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.85rem;
    font-size: 0.93rem;
    color: #475569;
    line-height: 1.65;
}

.osl-num {
    width: 26px;
    height: 26px;
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 800;
    flex-shrink: 0;
    margin-top: 2px;
    box-shadow: 0 2px 6px rgba(37,99,235,0.25);
}

.order-example-box {
    background: linear-gradient(135deg, #f0f5ff, #e8edf5);
    border: 1px solid #c7d7f5;
    border-radius: 10px;
    padding: 1rem 1.25rem;
    font-size: 0.9rem;
    color: #475569;
    line-height: 1.7;
}
.order-example-box strong { color: #1a3a6b; }

.order-options-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.85rem;
}

.order-option-card {
    border-radius: 12px;
    padding: 1.1rem;
    border: 1px solid transparent;
}
.order-option--neutral { background: #f8fafc; border-color: #e2e8f0; }
.order-option--good    { background: linear-gradient(135deg,#f0fdf4,#dcfce7); border-color: #86efac; }
.order-option--better  { background: linear-gradient(135deg,#eff6ff,#dbeafe); border-color: #93c5fd; }
.order-option--most    { background: linear-gradient(135deg,#fdf4ff,#f5d0fe); border-color: #d8b4fe; }

.ooc-label {
    font-size: 0.9rem;
    font-weight: 800;
    color: #1a3a6b;
    margin-bottom: 0.5rem;
}

.ooc-pro {
    font-size: 0.8rem;
    color: #15803d;
    font-weight: 600;
    padding-left: 0.9rem;
    position: relative;
    margin-bottom: 0.3rem;
    line-height: 1.5;
}
.ooc-pro::before { content: '✓'; position: absolute; left: 0; color: #22c55e; font-weight: 900; }

.ooc-con {
    font-size: 0.8rem;
    color: #b45309;
    font-weight: 600;
    padding-left: 0.9rem;
    position: relative;
    line-height: 1.5;
}
.ooc-con::before { content: '✗'; position: absolute; left: 0; color: #f59e0b; font-weight: 900; }

/* ======================== RELATED CALCULATORS ======================== */
.related-calcs-section {
    padding: 5.5rem 0;
    background: linear-gradient(180deg, #f0f5ff 0%, #f8fafc 100%);
}

.related-calcs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.25rem;
}

.related-calc-card {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 14px;
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    text-decoration: none;
    color: inherit;
    transition: box-shadow 0.25s, transform 0.25s, border-color 0.25s;
    position: relative;
    overflow: hidden;
}
.related-calc-card::before {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, #2563eb, #f59e0b);
    opacity: 0;
    transition: opacity 0.25s;
}
.related-calc-card:hover {
    box-shadow: 0 10px 28px rgba(37,99,235,0.12);
    transform: translateY(-3px);
    border-color: #bfdbfe;
    text-decoration: none;
}
.related-calc-card:hover::before { opacity: 1; }

.rcc-icon {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, #dbeafe, #bfdbfe);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #2563eb;
    box-shadow: 0 3px 8px rgba(37,99,235,0.15);
}

.rcc-label {
    font-size: 0.97rem;
    font-weight: 800;
    color: #1a3a6b;
}

.related-calc-card p {
    font-size: 0.85rem;
    color: #64748b;
    line-height: 1.65;
    margin: 0;
}

/* ======================== LEGAL PAGES ======================== */
.legal-page { padding: 4rem 0 6rem; }

.legal-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 3rem;
    align-items: start;
}

/* TOC sidebar */
.legal-toc-col { position: sticky; top: 5.5rem; }
.legal-toc {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 14px;
    padding: 1.5rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.legal-toc-title {
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #94a3b8;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid #f1f5f9;
}
.legal-toc-links { list-style: none; }
.legal-toc-link {
    display: block;
    padding: 0.42rem 0.75rem;
    border-radius: 7px;
    font-size: 0.855rem;
    color: #475569;
    font-weight: 500;
    transition: all 0.18s;
    border-left: 2px solid transparent;
    margin-bottom: 0.12rem;
    text-decoration: none;
    line-height: 1.4;
}
.legal-toc-link:hover {
    color: #2563eb;
    background: #eff6ff;
    border-left-color: #2563eb;
    text-decoration: none;
}

/* Updated badge */
.legal-updated {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: #f1f5f9;
    border: 1px solid #e2e8f0;
    border-radius: 50px;
    padding: 0.35rem 1rem;
    font-size: 0.82rem;
    color: #64748b;
    font-weight: 500;
    margin-bottom: 1.75rem;
}

/* Intro block */
.legal-intro {
    background: linear-gradient(135deg, #eff6ff 0%, #f0fdf4 100%);
    border: 1px solid #dbeafe;
    border-radius: 12px;
    padding: 1.5rem 1.75rem;
    color: #374151;
    line-height: 1.85;
    margin-bottom: 2.75rem;
    font-size: 0.97rem;
}

/* Each section */
.legal-section { margin-bottom: 2.75rem; scroll-margin-top: 5rem; }
.legal-section:last-child { margin-bottom: 0; }

.legal-section-header {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    margin-bottom: 1.1rem;
    padding-bottom: 0.8rem;
    border-bottom: 2px solid #f1f5f9;
}
.legal-section-num {
    flex-shrink: 0;
    width: 30px;
    height: 30px;
    background: linear-gradient(135deg, #1a3a6b, #2563eb);
    color: #fff;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0;
}
.legal-section-title {
    font-size: 1.12rem;
    font-weight: 700;
    color: #1a3a6b;
    margin: 0;
}

.legal-section-body p {
    color: #475569;
    line-height: 1.85;
    margin-bottom: 1rem;
    font-size: 0.96rem;
}
.legal-section-body p:last-child { margin-bottom: 0; }
.legal-section-body a { color: #2563eb; }
.legal-section-body a:hover { text-decoration: underline; }

/* Lists */
.legal-list { list-style: none; margin: 0.6rem 0 1rem; }
.legal-list li {
    position: relative;
    padding: 0.45rem 0 0.45rem 1.5rem;
    color: #475569;
    line-height: 1.75;
    font-size: 0.955rem;
    border-bottom: 1px solid #f8fafc;
}
.legal-list li:last-child { border-bottom: none; }
.legal-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.9em;
    width: 7px;
    height: 7px;
    background: #2563eb;
    border-radius: 50%;
}
.legal-list li strong { color: #1e293b; }

/* Notice boxes */
.legal-notice {
    border-radius: 10px;
    padding: 1.1rem 1.35rem;
    margin: 1rem 0 1.25rem;
    display: flex;
    gap: 0.85rem;
    align-items: flex-start;
}
.legal-notice--info { background: #eff6ff; border-left: 4px solid #2563eb; }
.legal-notice--warning { background: #fffbeb; border-left: 4px solid #f59e0b; }
.legal-notice--green { background: #f0fdf4; border-left: 4px solid #059669; }
.legal-notice-icon { flex-shrink: 0; margin-top: 0.1rem; }
.legal-notice-icon svg { display: block; }
.legal-notice--info .legal-notice-icon svg { color: #2563eb; }
.legal-notice--warning .legal-notice-icon svg { color: #d97706; }
.legal-notice--green .legal-notice-icon svg { color: #059669; }
.legal-notice-text { color: #374151; font-size: 0.935rem; line-height: 1.72; }
.legal-notice-text strong { color: #1e293b; }

/* Subsections */
.legal-subsection { margin: 1.5rem 0; }
.legal-subsection-title {
    font-size: 1rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 0.6rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.legal-subsection-title::before {
    content: '';
    display: block;
    width: 4px;
    height: 1em;
    background: #f59e0b;
    border-radius: 2px;
    flex-shrink: 0;
}

/* Cookie type cards */
.legal-type-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
    gap: 1rem;
    margin: 1rem 0;
}
.legal-type-card {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    padding: 1.1rem 1.2rem;
    border-top: 3px solid #2563eb;
}
.legal-type-card--analytics { border-top-color: #7c3aed; }
.legal-type-card--functionality { border-top-color: #059669; }
.legal-type-card--advertising { border-top-color: #f59e0b; }
.legal-type-card--affiliate { border-top-color: #dc2626; }
.legal-type-card-title { font-size: 0.9rem; font-weight: 700; color: #1a3a6b; margin-bottom: 0.45rem; }
.legal-type-card p { font-size: 0.86rem !important; color: #64748b !important; line-height: 1.6 !important; margin: 0 !important; }

/* Browser choice grid */
.legal-browser-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
    gap: 0.75rem;
    margin: 0.75rem 0;
}
.legal-browser-card {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    padding: 0.8rem 1rem;
    font-size: 0.875rem;
    color: #1e293b;
    font-weight: 500;
}
.legal-browser-card span {
    display: block;
    font-size: 0.8rem;
    color: #64748b;
    font-weight: 400;
    margin-top: 0.2rem;
}

/* Contact card */
.legal-contact-card {
    background: linear-gradient(135deg, #1a3a6b 0%, #2563eb 100%);
    border-radius: 14px;
    padding: 2rem 2.25rem;
    color: #fff;
    text-align: center;
    margin-top: 2rem;
}
.legal-contact-card h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 0.65rem; color: #fff; }
.legal-contact-card p { color: rgba(255,255,255,0.85); margin-bottom: 1.1rem; font-size: 0.96rem; line-height: 1.7; }
.legal-contact-card a { color: #f59e0b; font-weight: 600; }
.legal-contact-card a:hover { color: #fbbf24; }

/* ======================== RESPONSIVE ======================== */
@media (max-width: 1024px) {
    .calculator-body { grid-template-columns: 1fr; }
    .calc-form { border-right: none; border-bottom: 1px solid #e2e8f0; }
    .calc-results { min-height: 200px; }
    .blog-detail-inner { grid-template-columns: 1fr; }
    .blog-sidebar { position: static; }
    .tips-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr 1fr 1fr; }
    .formula-layout { grid-template-columns: 1fr; }
    .coverage-layout { grid-template-columns: 1fr; }
    .conversion-layout { grid-template-columns: 1fr; }
    .order-layout { grid-template-columns: 1fr; }
    .project-desc-grid { grid-template-columns: 1fr 1fr; }
    .about-intro-grid { grid-template-columns: 1fr; gap: 2.5rem; }
    .about-purpose-grid { grid-template-columns: 1fr; gap: 2.5rem; }
    .approach-layout { grid-template-columns: 1fr; gap: 2.5rem; }
    .commitment-card { grid-template-columns: 1fr; gap: 2rem; }
    .usa-banner { grid-template-columns: 1fr; gap: 2rem; }
    .about-contact-grid { grid-template-columns: 1fr; }
    .contact-reasons-grid { grid-template-columns: 1fr 1fr; }
    .contact-form-layout { grid-template-columns: 1fr; }
    .contact-info-col { position: static; }
    .contact-disclaimer-card { flex-direction: column; }
    .cdc-btn { width: 100%; justify-content: center; align-self: auto; }
    .legal-layout { grid-template-columns: 1fr; }
    .legal-toc-col { position: static; display: none; }
}

@media (max-width: 768px) {
    .mobile-menu-toggle { display: flex; }
    .main-nav {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: linear-gradient(135deg, #0f2447, #1a3a6b);
        flex-direction: column;
        padding: 0.75rem;
        gap: 0.2rem;
        z-index: 999;
        border-top: 1px solid rgba(255,255,255,0.08);
        box-shadow: 0 8px 24px rgba(0,0,0,0.3);
    }
    .main-nav.is-open { display: flex; }
    .nav-link { padding: 0.8rem 1rem; border-radius: 8px; }
    .header-inner { position: relative; }
    .input-row { grid-template-columns: 1fr; }
    .featured-post-link { grid-template-columns: 1fr; }
    .featured-post-image { height: 220px; }
    .stats-grid { grid-template-columns: 1fr; }
    .steps-grid { grid-template-columns: 1fr 36px 1fr; }
    .step-connector:nth-child(4) { display: none; }
    .shape-tab { padding: 0.9rem 1.1rem; font-size: 0.86rem; }
    .mid-cta-card { padding: 2.75rem 1.75rem; }
    .cta-buttons { flex-direction: column; align-items: center; }
    .free-card { padding: 2.5rem 1.75rem; }
    .project-desc-grid { grid-template-columns: 1fr; }
    .pet-row { grid-template-columns: 1fr 1fr; gap: 0.5rem; }
    .pet-head { display: none; }
    .order-options-grid { grid-template-columns: 1fr; }
    .coverage-row { grid-template-columns: 80px 1fr 80px; }
    .depth-grid { grid-template-columns: 1fr 1fr; }
    .usecases-grid { grid-template-columns: 1fr 1fr; }
    .info-topics-grid { grid-template-columns: 1fr; }
    .users-grid { grid-template-columns: 1fr 1fr; }
    .usa-banner { padding: 2.5rem; }
    .commitment-card { padding: 2.5rem; }
    .commitment-content { flex-direction: column; align-items: center; text-align: center; }
}

@media (max-width: 480px) {
    .calculator-hero { padding: 2.5rem 0 3.5rem; }
    .calc-form { padding: 1.5rem; }
    .calc-results { padding: 1.5rem; }
    .steps-grid { grid-template-columns: 1fr; }
    .step-connector { display: none; }
    .blog-grid { grid-template-columns: 1fr; }
    .social-share { flex-wrap: wrap; }
    .brand-logo { font-size: 1.25rem; }
    .brand-logo--footer { font-size: 1.15rem; }
    .depth-grid { grid-template-columns: 1fr; }
    .gravel-types-home-grid { grid-template-columns: 1fr; }
    .related-calcs-grid { grid-template-columns: 1fr; }
    .pet-row { grid-template-columns: 1fr; }
    .coverage-row { grid-template-columns: 75px 1fr 80px; gap: 0.5rem; }
    .formula-example-step { flex-wrap: wrap; }
    .order-options-grid { grid-template-columns: 1fr; }
    .usecases-grid { grid-template-columns: 1fr; }
    .users-grid { grid-template-columns: 1fr; }
    .about-intro-stats { grid-template-columns: 1fr 1fr; }
    .commitment-pillars { flex-direction: row; flex-wrap: wrap; justify-content: center; }
    .usa-banner-units { flex-direction: row; flex-wrap: wrap; justify-content: center; }
    .contact-reasons-grid { grid-template-columns: 1fr; }
    .cf-row { grid-template-columns: 1fr; }
    .contact-disclaimer-card { flex-direction: column; align-items: flex-start; }
    .contact-thanks-inner { font-size: 0.9rem; }
    .legal-type-grid { grid-template-columns: 1fr 1fr; }
    .legal-browser-grid { grid-template-columns: 1fr 1fr; }
    .legal-contact-card { padding: 1.75rem 1.25rem; }
}