:root {
    --page-accent: #147c93;
}

.subpage-hero {
    --subpage-position: center;
}

.subpage-hero .container {
    transform: translateY(-80px);
}

.intro-section {
    max-width: 880px;
    margin: 0 auto;
    text-align: center;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
}

.stat-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 32px 20px;
    border-radius: 20px;
    background: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
    box-shadow: 
        0 12px 35px rgba(10, 48, 56, 0.08),
        0 2px 8px rgba(10, 48, 56, 0.04),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--page-accent), #0d5f72, var(--page-accent));
    opacity: 0.8;
}

.stat-number {
    font-size: clamp(2.5rem, 5vw, 3.8rem);
    font-weight: 900;
    line-height: 1;
    color: var(--page-accent);
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--color-muted);
}

.section-header {
    max-width: 880px;
    margin: 0 auto 24px;
    text-align: center;
}

.importance-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
}

.importance-card {
    padding: 28px;
    border-radius: 24px;
    background: linear-gradient(160deg, #ffffff 0%, #f0f7f9 100%);
    box-shadow: 
        0 10px 30px rgba(10, 48, 56, 0.07),
        0 1px 6px rgba(10, 48, 56, 0.03),
        inset 0 1px 0 rgba(255, 255, 255, 0.9);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
}

.importance-card::after {
    content: "";
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(20, 124, 147, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

.importance-card:hover {
    transform: translateY(-6px) scale(1.02);
    box-shadow: 
        0 20px 50px rgba(10, 48, 56, 0.15),
        0 5px 15px rgba(10, 48, 56, 0.08);
}

.icon-box {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    margin-bottom: 18px;
    border-radius: 18px;
    background: linear-gradient(135deg, var(--page-accent) 0%, #0d5f72 50%, #0a4b53 100%);
    box-shadow: 
        0 8px 20px rgba(20, 124, 147, 0.35),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
    position: relative;
}

.icon-box::before {
    content: "";
    position: absolute;
    inset: 2px;
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2) 0%, transparent 50%);
}

.icon-emoji {
    font-size: 28px;
}

.importance-card h3 {
    margin: 0 0 12px;
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--color-ink);
}

.importance-card p {
    margin: 0;
    font-size: 0.95rem;
    color: var(--color-muted);
    line-height: 1.6;
}

.functions-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}

.function-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 24px 20px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.function-item::before {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--page-accent), transparent);
    opacity: 0.5;
}

.function-number {
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--page-accent);
    opacity: 0.9;
    line-height: 1;
}

.function-item p {
    margin: 0;
    font-size: 0.88rem;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.5;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
}

.tech-card {
    padding: 36px 32px;
    border-radius: 24px;
    background: linear-gradient(145deg, #ffffff 0%, #f5f9fa 100%);
    box-shadow: 
        0 12px 35px rgba(10, 48, 56, 0.08),
        0 3px 10px rgba(10, 48, 56, 0.05),
        inset 0 1px 0 rgba(255, 255, 255, 0.9);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
}

.tech-card::after {
    content: "";
    position: absolute;
    bottom: -30%;
    right: -30%;
    width: 60%;
    height: 60%;
    background: radial-gradient(circle, rgba(20, 124, 147, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.tech-card:hover {
    transform: translateY(-8px) scale(1.01);
    box-shadow: 
        0 25px 60px rgba(10, 48, 56, 0.18),
        0 8px 20px rgba(10, 48, 56, 0.1);
}

.tech-card.tech-primary {
    border: 2px solid transparent;
    background: linear-gradient(145deg, #ffffff 0%, #f5f9fa 100%) padding-box,
                linear-gradient(135deg, var(--page-accent), #0d5f72) border-box;
}

.tech-card.tech-secondary {
    border: 2px solid transparent;
    background: linear-gradient(145deg, #ffffff 0%, #f5f9fa 100%) padding-box,
                linear-gradient(135deg, #0d5f72, #0a4b53) border-box;
}

.tech-card.tech-tertiary {
    border: 2px solid transparent;
    background: linear-gradient(145deg, #ffffff 0%, #f5f9fa 100%) padding-box,
                linear-gradient(135deg, #0a4b53, var(--color-brand-deep)) border-box;
}

.tech-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 72px;
    height: 72px;
    margin-bottom: 22px;
    font-size: 36px;
    border-radius: 20px;
    background: linear-gradient(135deg, var(--page-accent) 0%, #0d5f72 50%, #0a4b53 100%);
    box-shadow: 
        0 10px 25px rgba(20, 124, 147, 0.4),
        inset 0 2px 0 rgba(255, 255, 255, 0.25);
    position: relative;
}

.tech-icon::before {
    content: "";
    position: absolute;
    inset: 3px;
    border-radius: 17px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.25) 0%, transparent 60%);
}

.tech-card h3 {
    margin: 0 0 14px;
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--color-ink);
}

.tech-card p {
    margin: 0;
    font-size: 0.98rem;
    color: var(--color-muted);
    line-height: 1.65;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
}

.benefit-card {
    padding: 26px 24px;
    border-radius: 20px;
    background: linear-gradient(150deg, #ffffff 0%, #f7fbfc 100%);
    box-shadow: 
        0 8px 25px rgba(10, 48, 56, 0.06),
        0 2px 8px rgba(10, 48, 56, 0.03),
        inset 0 1px 0 rgba(255, 255, 255, 0.85);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
}

.benefit-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--page-accent), #0d5f72);
    opacity: 0.6;
}

.benefit-card:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 
        0 18px 45px rgba(10, 48, 56, 0.14),
        0 6px 18px rgba(10, 48, 56, 0.08);
}

.benefit-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    margin-bottom: 16px;
    font-size: 28px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--page-accent) 0%, #0d5f72 50%, #0a4b53 100%);
    box-shadow: 
        0 6px 18px rgba(20, 124, 147, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
    position: relative;
}

.benefit-icon::before {
    content: "";
    position: absolute;
    inset: 2px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2) 0%, transparent 50%);
}

.benefit-card h3 {
    margin: 0 0 10px;
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--color-ink);
}

.benefit-card p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--color-muted);
    line-height: 1.6;
}

@media (max-width: 920px) {
    .stats-grid,
    .importance-grid,
    .tech-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .functions-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .benefits-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .stats-grid,
    .importance-grid,
    .tech-grid,
    .benefits-grid {
        grid-template-columns: 1fr;
    }

    .functions-grid {
        grid-template-columns: 1fr;
    }

    .stat-card {
        padding: 24px 16px;
    }

    .importance-card,
    .tech-card,
    .benefit-card {
        padding: 20px;
    }
}

@media (orientation: portrait) and (max-width: 640px) {
    .subpage-hero .container {
        transform: translateY(0);
        padding: 12px 0;
    }

    .subpage-hero-copy {
        transform: translateY(-50px);
    }

    .subpage-hero-copy h1 {
        font-size: 1.42rem;
        line-height: 1;
    }

    .subpage-hero-copy p:not(.section-kicker) {
        margin-top: 7px;
        font-size: 0.66rem;
        line-height: 1.22;
    }
}