:root {
    --primary: #5E4AD1;
    --primary-dark: #462DB8;
    --primary-light: #E5DEFF;
    --primary-glow: rgba(94, 74, 209, 0.15);
    --primary-gradient: linear-gradient(135deg, #5E4AD1, #2563EB);
    --secondary: #006C49;
    --secondary-light: #6CF8BB;

    --bg-color: #F5F6F8;
    --surface: #F9F9FF;
    --surface-solid: #FFFFFF;
    --white: #FFFFFF;
    --surface-low: #F8F9FC;
    --surface-container: #EEF0F6;
    --surface-high: #E2E8F0;
    --border: #E5E7EB;

    --text-main: #1E293B;
    --text-muted: #64748B;
    --on-surface: var(--text-main);
    --on-surface-variant: #475569;
    --outline: #787585;
    --outline-light: var(--border);

    --success: #22C55E;
    --success-light: #DCFCE7;
    --warning: #F59E0B;
    --warning-light: #FEF3C7;
    --danger: #EF4444;
    --danger-light: #FEE2E2;
    --error: #BA1A1A;

    --blue: #3B82F6;
    --light-blue: #93C5FD;
    --yellow: #FACC15;
    --grey: #CBD5E1;

    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
    --radius-xl: 12px;

    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
    --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.06);
    --shadow-lg: 0 8px 24px rgba(15, 23, 42, 0.08);
    --shadow-xl: 0 16px 40px rgba(15, 23, 42, 0.1);

    --font-head: 'Geist', system-ui, -apple-system, sans-serif;
    --font-body: 'Geist', system-ui, -apple-system, sans-serif;
    --font-mono: 'Geist Mono', ui-monospace, SFMono-Regular, monospace;

    --text-xs: 12px;
    --text-sm: 14px;
    --text-base: 16px;
    --text-lg: 18px;
    --text-xl: clamp(18px, 1.6vw, 20px);
    --text-2xl: clamp(20px, 2vw, 24px);
    --text-3xl: clamp(26px, 3vw, 34px);
    --text-4xl: clamp(30px, 3.6vw, 42px);
    --text-5xl: clamp(36px, 4.6vw, 56px);

    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-6: 24px;
    --space-8: 32px;
    --space-12: 48px;
    --space-16: 64px;
    --section-y: clamp(64px, 9vw, 112px);

    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

    --max-w: 1200px;
}

.btn-primary,
.btn-primary-sm,
.btn-secondary,
.btn-secondary-sm {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-weight: 600;
    white-space: nowrap;
    cursor: pointer;
    text-decoration: none;
    transition: background 0.15s, border-color 0.15s, color 0.15s, transform 0.1s;
}

.btn-primary:active,
.btn-primary-sm:active,
.btn-secondary:active,
.btn-secondary-sm:active {
    transform: translateY(1px);
}

.btn-primary,
.btn-secondary {
    padding: 12px 24px;
    font-size: 15px;
}

.btn-primary-sm,
.btn-secondary-sm {
    padding: 8px 14px;
    font-size: 14px;
}

.btn-primary,
.btn-primary-sm {
    background: var(--primary);
    color: #FFFFFF;
    border: 1px solid var(--primary);
}

.btn-primary:hover,
.btn-primary-sm:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
}

.btn-secondary,
.btn-secondary-sm {
    background: var(--surface-solid);
    color: var(--primary);
    border: 1px solid var(--border);
}

.btn-secondary:hover,
.btn-secondary-sm:hover {
    border-color: var(--primary);
    background: var(--primary-light);
}

.btn-white {
    background: var(--white);
    color: var(--primary);
    border-color: var(--white);
}

.btn-white:hover {
    background: var(--surface-low);
    border-color: var(--surface-low);
}

.btn-primary:disabled,
.btn-primary-sm:disabled,
.btn-secondary:disabled,
.btn-secondary-sm:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary:focus-visible,
.btn-primary-sm:focus-visible,
.btn-secondary:focus-visible,
.btn-secondary-sm:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

.btn-primary-sm .material-symbols-outlined,
.btn-secondary-sm .material-symbols-outlined {
    font-size: 18px;
}

.btn-secondary-sm.danger:hover {
    border-color: var(--danger);
    color: var(--danger);
    background: var(--danger-light);
}

.icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    position: relative;
    width: 40px;
    height: 40px;
    padding: 0;
    border: none;
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
}

.icon-btn:hover {
    background: var(--bg-color);
    color: var(--primary);
}

.icon-btn:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

.icon-btn.sm {
    width: 32px;
    height: 32px;
}

.icon-btn.sm .material-symbols-outlined {
    font-size: 18px;
}

.container {
    width: 100%;
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 16px;
}

@media (min-width: 768px) {
    .container { padding: 0 40px; }
}

.eyebrow {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--primary);
}

.section-head {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    max-width: 640px;
}

.section-head h2 {
    font-family: var(--font-head);
    font-size: var(--text-4xl);
    font-weight: 600;
    line-height: 1.1;
    letter-spacing: -0.03em;
    color: var(--text-main);
}

.section-head p {
    font-size: var(--text-lg);
    line-height: 1.6;
    color: var(--on-surface-variant);
    max-width: 65ch;
}

.tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: 4px 10px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface-solid);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-main);
}

.frame {
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--surface-solid);
    overflow: hidden;
}

.frame img {
    display: block;
    width: 100%;
    height: auto;
}

.stat-value {
    font-family: var(--font-head);
    font-weight: 600;
    letter-spacing: -0.02em;
    font-variant-numeric: tabular-nums;
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}