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

:root {
    --water-deep: #0a1628;
    --water-dark: #0f2847;
    --water-mid: #1a4b8c;
    --water-light: #2d7dd2;
    --water-bright: #45b7d1;
    --water-glow: #97e1f7;
    --water-pale: #d4f1f9;
    --danger: #ff4757;
    --danger-soft: #ff6b7a;
    --warning: #ffa502;
    --success: #2ed573;
    --text: #e8f4f8;
    --text-muted: #8badc4;
    --text-dim: #5a7d94;
    --surface: #0d1f3c;
    --surface-light: #142d54;
    --surface-lighter: #1a3a6a;
    --card: rgba(20, 45, 84, 0.6);
    --card-border: rgba(45, 125, 210, 0.2);
    --radius: 12px;
    --radius-lg: 20px;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --mono: 'JetBrains Mono', monospace;
}

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

body {
    font-family: var(--font);
    background: var(--water-deep);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--water-bright);
    text-decoration: none;
    transition: color 0.2s;
}
a:hover { color: var(--water-glow); }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== NAV ===== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 22, 40, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--card-border);
}

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.nav-logo {
    display: flex;
    align-items: center;
}

.nav-logo-img {
    height: 30px;
    width: auto;
}

.nav-links {
    display: flex;
    gap: 32px;
}
.nav-links a {
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s;
}
.nav-links a:hover { color: var(--text); }

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    flex-direction: column;
    gap: 5px;
}
.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text);
    transition: 0.3s;
}

/* ===== HERO ===== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 100px 24px 60px;
    text-align: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 50% 0%, rgba(45, 125, 210, 0.15) 0%, transparent 60%),
                radial-gradient(ellipse at 20% 80%, rgba(45, 183, 209, 0.08) 0%, transparent 50%),
                var(--water-deep);
}

.water-drops {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.water-drop-particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--water-bright);
    border-radius: 50%;
    opacity: 0;
    animation: dropFall linear infinite;
}

@keyframes dropFall {
    0% { transform: translateY(-20px); opacity: 0; }
    10% { opacity: 0.6; }
    90% { opacity: 0.3; }
    100% { transform: translateY(100vh); opacity: 0; }
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
}

.hero-label {
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 3px;
    color: var(--water-bright);
    margin-bottom: 16px;
    text-transform: uppercase;
}

.live-counter {
    margin-bottom: 32px;
}

.counter-value {
    font-family: var(--mono);
    font-size: clamp(3rem, 10vw, 6rem);
    font-weight: 700;
    color: var(--water-glow);
    line-height: 1.1;
    text-shadow: 0 0 40px rgba(151, 225, 247, 0.3);
}

.counter-unit {
    font-size: 1.3rem;
    color: var(--text-muted);
    margin-top: 8px;
    font-weight: 300;
}

.hero-sub {
    font-size: 1.2rem;
    color: var(--text-muted);
    max-width: 650px;
    margin: 0 auto 48px;
    line-height: 1.7;
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 32px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.hero-stat {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.hero-stat-value {
    font-family: var(--mono);
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text);
}

.hero-stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.hero-stat-divider {
    width: 1px;
    height: 40px;
    background: var(--card-border);
}

.hero-cta {
    display: inline-block;
    padding: 14px 36px;
    background: linear-gradient(135deg, var(--water-light), var(--water-bright));
    color: var(--water-deep);
    font-weight: 700;
    font-size: 1rem;
    border-radius: 50px;
    transition: transform 0.2s, box-shadow 0.2s;
}
.hero-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(45, 183, 209, 0.3);
    color: var(--water-deep);
}

.scroll-indicator {
    position: absolute;
    bottom: 32px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-dim);
    font-size: 0.8rem;
    animation: bobble 2s ease-in-out infinite;
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid var(--text-dim);
    border-bottom: 2px solid var(--text-dim);
    transform: rotate(45deg);
}

@keyframes bobble {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(8px); }
}

/* ===== SECTIONS ===== */
.section {
    padding: 100px 0;
}

.section-dark {
    background: var(--surface);
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    text-align: center;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--text), var(--water-glow));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    text-align: center;
    color: var(--text-muted);
    font-size: 1.15rem;
    max-width: 700px;
    margin: 0 auto 60px;
    line-height: 1.7;
}

/* ===== EXPLAINER ===== */
.explainer-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.explainer-card {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    text-align: center;
    transition: transform 0.3s, border-color 0.3s;
}
.explainer-card:hover {
    transform: translateY(-4px);
    border-color: var(--water-bright);
}

.explainer-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.explainer-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text);
}

.explainer-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* ===== CALCULATOR ===== */
.calculator {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
}

.calc-inputs {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.calc-group label {
    display: block;
    font-weight: 600;
    font-size: 1rem;
    margin-bottom: 12px;
    color: var(--text);
}

.slider-row {
    display: flex;
    align-items: center;
    gap: 16px;
}

.slider {
    flex: 1;
    -webkit-appearance: none;
    appearance: none;
    height: 8px;
    background: var(--surface);
    border-radius: 4px;
    outline: none;
    cursor: pointer;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--water-bright);
    cursor: pointer;
    box-shadow: 0 0 12px rgba(45, 183, 209, 0.4);
}

.slider::-moz-range-thumb {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--water-bright);
    cursor: pointer;
    border: none;
    box-shadow: 0 0 12px rgba(45, 183, 209, 0.4);
}

.slider-value {
    font-family: var(--mono);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--water-glow);
    min-width: 50px;
    text-align: right;
}

.platform-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.platform-btn {
    padding: 10px 18px;
    background: var(--surface);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    color: var(--text-muted);
    font-family: var(--font);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.platform-btn:hover {
    border-color: var(--water-light);
    color: var(--text);
}

.platform-btn.active {
    background: var(--water-mid);
    border-color: var(--water-bright);
    color: var(--text);
}

.calc-results {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.calc-result-card {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    padding: 24px;
    text-align: center;
}

.calc-result-card.main-result {
    background: linear-gradient(135deg, rgba(45, 125, 210, 0.2), rgba(45, 183, 209, 0.1));
    border-color: var(--water-light);
}

.result-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 500;
}

.result-value {
    font-family: var(--mono);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--water-glow);
}

.result-value.small {
    font-size: 1.5rem;
}

.result-context {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.calc-result-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

/* ===== CHARTS ===== */
.chart-container {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 32px;
    position: relative;
}

.chart-container.wide {
    max-width: 900px;
    margin: 0 auto;
}

.chart-container canvas {
    max-height: 400px;
}

.chart-label {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 20px;
    text-align: center;
}

.chart-note {
    margin-top: 16px;
    padding: 16px 20px;
    background: rgba(45, 125, 210, 0.08);
    border-left: 3px solid var(--water-mid);
    border-radius: 0 8px 8px 0;
    font-size: 0.85rem;
    color: var(--text-dim);
    line-height: 1.6;
}

.charts-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 40px;
}

.chart-half .chart-container canvas {
    max-height: 350px;
}

/* ===== GLOBAL ===== */
.global-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 32px;
    align-items: start;
}

.global-stats-area {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.global-stat-card {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    padding: 24px;
}

.global-stat-card.highlight {
    background: linear-gradient(135deg, rgba(255, 71, 87, 0.1), rgba(255, 107, 122, 0.05));
    border-color: rgba(255, 71, 87, 0.3);
}

.global-stat-number {
    font-family: var(--mono);
    font-size: 2rem;
    font-weight: 700;
    color: var(--water-glow);
}

.highlight .global-stat-number {
    color: var(--danger-soft);
}

.global-stat-unit {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.global-stat-desc {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.5;
}

.global-stat-source {
    display: block;
    font-size: 0.75rem;
    color: var(--text-dim);
    font-style: normal;
    margin-top: 8px;
}

/* ===== CARD SOURCES ===== */
.card-source {
    display: block;
    font-size: 0.7rem;
    color: var(--text-dim);
    font-style: normal;
    margin-top: 12px;
}

/* ===== FACT BANNERS ===== */
.fact-banner-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 16px;
}

.fact-banner {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    text-align: center;
    border-top: 3px solid var(--water-bright);
    transition: transform 0.3s;
}
.fact-banner:hover { transform: translateY(-4px); }

.fact-banner.danger { border-top-color: var(--danger); }
.fact-banner.warning { border-top-color: var(--warning); }
.fact-banner.blue { border-top-color: var(--water-bright); }
.fact-banner.dark { border-top-color: var(--water-mid); }

.fact-banner-number {
    font-family: var(--mono);
    font-size: 2.4rem;
    font-weight: 700;
    line-height: 1.1;
}
.fact-banner.danger .fact-banner-number { color: var(--danger-soft); }
.fact-banner.warning .fact-banner-number { color: var(--warning); }
.fact-banner.blue .fact-banner-number { color: var(--water-glow); }
.fact-banner.dark .fact-banner-number { color: var(--water-bright); }

.fact-banner-unit {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-muted);
    margin: 6px 0 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.fact-banner-desc {
    font-size: 0.85rem;
    color: var(--text-dim);
    line-height: 1.6;
    max-width: 360px;
    margin: 0 auto;
}

.regional-heading {
    margin-top: 48px;
}

/* ===== REGIONAL ===== */
.regional-grid {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 24px;
    align-items: start;
}

.regional-stats {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.regional-stat-card {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    padding: 20px;
}

.regional-location {
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--water-bright);
    margin-bottom: 4px;
}

.regional-number {
    font-family: var(--mono);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--danger-soft);
    margin-bottom: 6px;
}

.regional-detail {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* ===== QUOTE BLOCK ===== */
.quote-block {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    padding: 60px 40px;
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    position: relative;
}

.quote-block::before {
    content: '\201C';
    position: absolute;
    top: 16px;
    left: 28px;
    font-size: 5rem;
    color: var(--water-mid);
    font-family: Georgia, serif;
    line-height: 1;
}

.quote-text {
    font-size: clamp(1.5rem, 4vw, 2.2rem);
    font-weight: 700;
    color: var(--text);
    margin-bottom: 12px;
    font-style: italic;
}

.quote-attr {
    font-size: 1rem;
    color: var(--water-bright);
    margin-bottom: 24px;
    font-weight: 500;
}

.quote-reality {
    font-size: 1rem;
    color: var(--text-muted);
    line-height: 1.7;
    max-width: 600px;
    margin: 0 auto;
    padding-top: 20px;
    border-top: 1px solid var(--card-border);
}

/* ===== WATER STRESS ===== */
.stress-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.stress-card {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 28px 24px;
    transition: transform 0.3s;
}
.stress-card:hover { transform: translateY(-4px); }

.stress-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.stress-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 10px;
}

.stress-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* ===== COMPANY CARDS ===== */
.company-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.company-card {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 32px;
    border-top: 3px solid;
}

.company-card.microsoft { border-top-color: #00a4ef; }
.company-card.google { border-top-color: #4285f4; }
.company-card.meta { border-top-color: #0668e1; }

.company-name {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.company-stat {
    font-family: var(--mono);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--water-glow);
    margin-bottom: 4px;
}
.company-stat span {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 400;
}

.company-change {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 12px;
}
.company-change.up { color: var(--danger); }

.company-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* ===== TRAINING CARDS ===== */
.training-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 40px;
}

.training-card {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    padding: 24px;
    text-align: center;
}

.training-model {
    font-family: var(--mono);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--water-bright);
    margin-bottom: 8px;
}

.training-water {
    font-family: var(--mono);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--danger-soft);
    margin-bottom: 8px;
}

.training-equiv {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.5;
    margin-bottom: 12px;
}

.training-card cite {
    display: block;
    font-size: 0.7rem;
    color: var(--text-dim);
    font-style: normal;
}

/* ===== COMPARE GRID ===== */
.compare-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.compare-card {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    text-align: center;
    transition: transform 0.3s;
}
.compare-card:hover { transform: translateY(-4px); }

.compare-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.compare-number {
    font-family: var(--mono);
    font-size: 2rem;
    font-weight: 700;
    color: var(--warning);
    margin-bottom: 4px;
}

.compare-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 8px;
}

.compare-card p {
    font-size: 0.8rem;
    color: var(--text-dim);
    line-height: 1.5;
}

/* ===== TIMELINE ===== */
.timeline {
    position: relative;
    max-width: 700px;
    margin: 0 auto;
    padding-left: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--water-bright), var(--danger));
}

.timeline-item {
    position: relative;
    margin-bottom: 48px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -33px;
    top: 4px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--water-bright);
    border: 3px solid var(--surface);
    box-shadow: 0 0 12px rgba(45, 183, 209, 0.4);
}

.timeline-year {
    font-family: var(--mono);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--water-bright);
    margin-bottom: 8px;
}

.timeline-content h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 8px;
}

.timeline-content p {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.7;
}

/* ===== ACTION ===== */
.action-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.action-card {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 32px;
}

.action-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--water-bright);
}

.action-card ul {
    list-style: none;
}

.action-card li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 12px;
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.action-card li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--water-bright);
}

/* ===== SOURCES ===== */
.sources-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.source-item {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    padding: 24px;
}

.source-tag {
    display: inline-block;
    padding: 3px 10px;
    background: var(--water-mid);
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.source-item p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 4px;
}

.source-item a {
    font-size: 0.85rem;
}

/* ===== FOOTER ===== */
.footer {
    padding: 60px 0 40px;
    border-top: 1px solid var(--card-border);
}

.footer-inner {
    text-align: center;
}

.footer-brand {
    margin-bottom: 16px;
}

.footer-logo-img {
    height: 36px;
    width: auto;
    opacity: 0.85;
}

.footer-text {
    color: var(--text-muted);
    font-size: 0.9rem;
    max-width: 500px;
    margin: 0 auto 20px;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-bottom: 24px;
}

.footer-links a {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 500;
}

.footer-copy {
    font-size: 0.8rem;
    color: var(--text-dim);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .explainer-grid,
    .company-cards,
    .action-grid { grid-template-columns: repeat(2, 1fr); }
    .training-cards { grid-template-columns: repeat(2, 1fr); }
    .compare-grid { grid-template-columns: repeat(2, 1fr); }
    .stress-grid { grid-template-columns: repeat(2, 1fr); }
    .charts-row { grid-template-columns: 1fr; }
    .global-grid { grid-template-columns: 1fr; }
    .regional-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .nav-toggle { display: flex; }

    .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: rgba(10, 22, 40, 0.95);
        backdrop-filter: blur(20px);
        padding: 20px 24px;
        gap: 16px;
        border-bottom: 1px solid var(--card-border);
    }

    .section { padding: 60px 0; }

    .explainer-grid,
    .company-cards,
    .action-grid,
    .training-cards,
    .compare-grid,
    .fact-banner-grid,
    .stress-grid { grid-template-columns: 1fr; }

    .calculator { grid-template-columns: 1fr; }
    .calc-result-grid { grid-template-columns: 1fr 1fr; }

    .hero-stats { flex-direction: column; gap: 16px; }
    .hero-stat-divider { width: 40px; height: 1px; }

    .charts-row { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .calc-result-grid { grid-template-columns: 1fr; }
    .counter-value { font-size: 2.5rem; }
}

/* ===== ANIMATIONS ===== */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Live pulse effect on counter */
@keyframes pulse {
    0%, 100% { text-shadow: 0 0 40px rgba(151, 225, 247, 0.3); }
    50% { text-shadow: 0 0 60px rgba(151, 225, 247, 0.5); }
}

.counter-value {
    animation: pulse 3s ease-in-out infinite;
}

/* Water drop animation in hero */
@keyframes ripple {
    0% { transform: scale(1); opacity: 0.5; }
    100% { transform: scale(4); opacity: 0; }
}