:root {
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 24px;
    --space-6: 32px;
    --space-7: 48px;
    --space-8: 64px;
    --space-9: 96px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --shadow-sm: 0 8px 24px rgba(15, 23, 42, 0.08);
    --shadow-md: 0 20px 60px rgba(15, 23, 42, 0.12);
    --bg: #f8fafc;
    --surface: #ffffff;
    --surface-muted: #f1f5f9;
    --border: rgba(148, 163, 184, 0.35);
    --text: #0f172a;
    --text-muted: #475569;
    --text-soft: #64748b;
    --brand: #0f766e;
    --brand-strong: #0f172a;
    --accent: #f59e0b;
}

* {
    box-sizing: border-box;
}

body {
    font-family: "Inter", "SF Pro Text", "Segoe UI", system-ui, sans-serif;
    background: radial-gradient(circle at top, #f8fafc 0%, #ffffff 55%, #f1f5f9 100%);
    color: var(--text);
}

.container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.section {
    padding: var(--space-9) 0;
}

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

.eyebrow {
    font-size: 12px;
    letter-spacing: 0.24em;
    text-transform: uppercase;
    color: var(--text-soft);
    font-weight: 600;
}

.h1 {
    font-size: clamp(36px, 4vw, 40px);
    line-height: 1.08;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.h2 {
    font-size: clamp(28px, 3vw, 32px);
    line-height: 1.2;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.h3 {
    font-size: clamp(22px, 2vw, 24px);
    line-height: 1.3;
    font-weight: 600;
}

.body-lg {
    font-size: 18px;
    line-height: 1.6;
    color: var(--text-muted);
}

.body-md {
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-muted);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 20px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    transition: all 0.2s ease;
}

.btn-primary {
    background: var(--brand);
    color: #ffffff;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    transform: translateY(-1px);
    filter: brightness(0.95);
}

.btn-secondary {
    border: 1px solid var(--border);
    color: var(--text);
    background: #ffffff;
}

.btn-secondary:hover {
    border-color: rgba(15, 118, 110, 0.45);
    color: var(--brand);
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.card-hover:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.glass {
    background: rgba(255, 255, 255, 0.82);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(148, 163, 184, 0.2);
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    border-radius: 999px;
    background: rgba(15, 118, 110, 0.08);
    color: var(--brand);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.25em;
    text-transform: uppercase;
}

.nav-shadow {
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
}

.bg-grid-pattern {
    background-image:
        linear-gradient(to right, rgba(148, 163, 184, 0.12) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(148, 163, 184, 0.12) 1px, transparent 1px);
    background-size: 80px 80px;
}

a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--space-5);
    }

    .section {
        padding: 72px 0;
    }
}