:root, [data-theme="light"] {
  --text-xs: clamp(0.76rem, 0.72rem + 0.26vw, 0.90rem);
  --text-sm: clamp(0.90rem, 0.80rem + 0.36vw, 1.06rem);
  --text-base: clamp(1.06rem, 0.96rem + 0.26vw, 1.20rem);
  --text-lg: clamp(1.20rem, 1.06rem + 0.76vw, 1.58rem);
  --text-xl: clamp(1.58rem, 1.23rem + 1.26vw, 2.34rem);
  --text-2xl: clamp(2.06rem, 1.23rem + 2.56vw, 3.82rem);
  --space-1: 0.25rem; --space-2: 0.5rem; --space-3: 0.75rem; --space-4: 1rem; --space-5: 1.25rem; --space-6: 1.5rem; --space-8: 2rem; --space-10: 2.5rem; --space-12: 3rem; --space-16: 4rem; --space-20: 5rem; --space-24: 6rem;
  --color-bg: #fdfcfb; --color-surface: #f6f4f1; --color-surface-2: #ede9e4; --color-divider: #e0dbd5; --color-border: rgba(60, 50, 40, 0.09); --color-text: #1c1916; --color-text-muted: #5c554e; --color-text-faint: #9b948b; --color-text-inverse: #fdfaf7; --color-primary: #1a7f6e; --color-primary-hover: #146658; --color-primary-highlight: #e0f0ec; --color-accent: #e07b2c; --color-accent-hover: #c5691f; --color-accent-highlight: #fef3e6; --color-brand-ink: #1e2d2a; --color-brand-ink-light: #2d423d; --color-section-dark-bg: #1e2d2a; --color-warm-bg: #faf7f3; --color-urgent-bg: #fff8f0; --color-stat-bg: #f0f7f5;
  --shadow-sm: 0 1px 2px rgba(30, 25, 20, 0.04); --shadow-md: 0 8px 24px rgba(30, 25, 20, 0.07); --shadow-lg: 0 16px 48px rgba(30, 25, 20, 0.09); --shadow-xl: 0 24px 64px rgba(30, 25, 20, 0.12); --radius-sm: 0.375rem; --radius-md: 0.5rem; --radius-lg: 0.875rem; --radius-xl: 1.25rem; --radius-2xl: 1.75rem; --radius-full: 9999px; --font-body: 'Satoshi', 'Inter', system-ui, -apple-system, sans-serif; --font-display: 'Satoshi', 'Inter', system-ui, -apple-system, sans-serif; --transition-interactive: 220ms cubic-bezier(0.16, 1, 0.3, 1); --content-default: 1280px;
}
[data-theme="dark"] {
  --color-bg: #12100e; --color-surface: #1a1815; --color-surface-2: #201e1a; --color-divider: #2a2723; --color-border: rgba(180, 170, 155, 0.14); --color-text: #e8e4dd; --color-text-muted: #b8b2a8; --color-text-faint: #706a62; --color-text-inverse: #12100e; --color-primary: #6db8a8; --color-primary-hover: #8ed0c0; --color-primary-highlight: #1a3a32; --color-accent: #f0a840; --color-accent-hover: #f5c070; --color-accent-highlight: #3d2a10; --color-brand-ink: #e8e4dd; --color-brand-ink-light: #c5c0b8; --color-section-dark-bg: #151815; --color-urgent-bg: #1f1810; --color-stat-bg: #1a2a25;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.25); --shadow-md: 0 8px 24px rgba(0,0,0,0.35); --shadow-lg: 0 16px 48px rgba(0,0,0,0.45); --shadow-xl: 0 24px 64px rgba(0,0,0,0.55);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: none; text-size-adjust: none; scroll-padding-top: 5.5rem; }
body { min-height: 100dvh; font-family: var(--font-body); font-size: var(--text-base); line-height: 1.6; color: var(--color-text); background: var(--color-bg); -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
img, svg { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 3px; border-radius: var(--radius-sm); }
@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; } }
.skip-link { position: absolute; left: 1rem; top: -3rem; background: var(--color-primary); color: var(--color-text-inverse); padding: 0.7rem 1rem; border-radius: var(--radius-md); z-index: 999; font-weight: 600; }
.skip-link:focus { top: 1rem; }
.container { width: min(calc(100% - 2rem), var(--content-default)); margin-inline: auto; }
.site-header { position: sticky; top: 0; z-index: 20; backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); background: color-mix(in srgb, var(--color-bg) 88%, transparent); border-bottom: 1px solid var(--color-border); }
.nav { min-height: 4.5rem; display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); flex-wrap: wrap; padding-block: 0.5rem; }
.brand { display: inline-flex; align-items: center; gap: 0.75rem; font-weight: 700; min-height: 44px; flex-shrink: 0; }
.brand-mark { width: 2.75rem; height: 2.75rem; border-radius: 0.75rem; display: grid; place-items: center; background: var(--color-brand-ink); color: var(--color-text-inverse); flex-shrink: 0; }
.brand-text { display: grid; gap: 0.02rem; line-height: 1.1; }
.brand-text strong { font-size: 1.2rem; color: var(--color-brand-ink); letter-spacing: -0.02em; }
.brand-text span { font-size: var(--text-sm); color: var(--color-text-muted); font-weight: 500; white-space: nowrap; }
.nav-links { display: none; gap: 1.3rem; color: var(--color-text-muted); font-size: var(--text-sm); font-weight: 500; }
.nav-links a { transition: color var(--transition-interactive); white-space: nowrap; }
.nav-links a:hover { color: var(--color-text); }
.nav-actions { display: flex; align-items: center; gap: 0.6rem; flex-shrink: 0; }
.nav-actions .btn-accent { width: 188px; }
.theme-toggle { width: 44px; height: 44px; border-radius: var(--radius-full); border: 1px solid var(--color-border); background: var(--color-surface); color: var(--color-text); display: grid; place-items: center; cursor: pointer; transition: background var(--transition-interactive); }
.theme-toggle:hover { background: var(--color-surface-2); }
.btn, .btn-secondary, .btn-accent { min-height: 46px; width: 215px; display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; border-radius: var(--radius-md); padding: 0.85rem 1.5rem; font-size: var(--text-sm); font-weight: 700; transition: all var(--transition-interactive); white-space: nowrap; letter-spacing: 0.01em; cursor: pointer; }
.btn { background: var(--color-brand-ink); color: var(--color-text-inverse); box-shadow: var(--shadow-sm); border: none; }
.btn:hover { background: var(--color-brand-ink-light); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-accent { background: var(--color-accent); color: #ffffff; box-shadow: var(--shadow-sm); border: none; }
.btn-accent:hover { background: var(--color-accent-hover); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-secondary { background: transparent; color: var(--color-text); border: 1px solid var(--color-border); }
.btn-secondary:hover { background: var(--color-surface); transform: translateY(-2px); }
h1, h2, h3 { font-family: var(--font-display); color: var(--color-brand-ink); line-height: 1.15; margin: 0; }
h1 { font-size: var(--text-2xl); max-width: 20ch; letter-spacing: -0.03em; margin-bottom: var(--space-4); font-weight: 700; }
h2 { font-size: var(--text-xl); letter-spacing: -0.02em; margin-bottom: var(--space-4); font-weight: 700; }
h3 { font-weight: 700; letter-spacing: -0.01em; }
.lead { color: var(--color-text-muted); max-width: 56ch; margin-bottom: var(--space-5); font-size: var(--text-lg); }
.section { padding-block: clamp(3rem, 8vw, 5.5rem); }
.section-alt { background: var(--color-surface); }
.section-warm { background: var(--color-warm-bg); border-top: 1px solid var(--color-divider); border-bottom: 1px solid var(--color-divider); }
.section-dark { background: var(--color-section-dark-bg); color: #ffffff; }
.section-dark h2 { color: #ffffff; }
.section-dark .section-intro p { color: rgba(255, 255, 255, 0.65); }
.section-urgent { background: var(--color-urgent-bg); border-top: 1px solid var(--color-accent-highlight); border-bottom: 1px solid var(--color-accent-highlight); }
.section-intro { display: grid; gap: var(--space-3); margin-bottom: var(--space-10); max-width: 58ch; }
.section-intro p { color: var(--color-text-muted); }
.section-warm .section-intro h2 { color: var(--color-brand-ink); }
.footer { padding-block: var(--space-10); border-top: 1px solid var(--color-border); background: var(--color-surface); }
.footer-wrap { display: grid; gap: var(--space-3); }
.footer strong { color: var(--color-brand-ink); font-size: 1rem; }
.footer p { margin: 0; color: var(--color-text-muted); max-width: 68ch; font-size: var(--text-sm); }
.footer a[href*="youtube.com"] svg { fill: #ff0000; }
.footer a[href*="youtube.com"]:hover svg { fill: #cc0000; }
.footer a[href*="x.com"] svg { fill: #000000; }
.footer a[href*="x.com"]:hover svg { fill: #333333; }

/* Hamburger menu */
.hamburger { display: flex; width: 44px; height: 44px; border-radius: var(--radius-full); border: 1px solid var(--color-border); background: var(--color-surface); color: var(--color-text); align-items: center; justify-content: center; cursor: pointer; transition: background var(--transition-interactive); flex-shrink: 0; }
.hamburger:hover { background: var(--color-surface-2); }
.hamburger span { display: block; width: 18px; height: 2px; background: var(--color-text); border-radius: 2px; position: relative; transition: background var(--transition-interactive); }
.hamburger span::before, .hamburger span::after { content: ''; display: block; width: 18px; height: 2px; background: var(--color-text); border-radius: 2px; position: absolute; left: 0; transition: transform var(--transition-interactive); }
.hamburger span::before { top: -6px; }
.hamburger span::after { top: 6px; }
.hamburger.active span { background: transparent; }
.hamburger.active span::before { transform: rotate(45deg); top: 0; }
.hamburger.active span::after { transform: rotate(-45deg); top: 0; }

@media (max-width: 899px) {
  .nav-links { display: none; position: absolute; top: 100%; left: 0; right: 0; background: var(--color-bg); border-bottom: 1px solid var(--color-border); flex-direction: column; gap: 0; padding: 0.5rem 1rem; box-shadow: var(--shadow-lg); z-index: 19; }
  .nav-links.active { display: flex; }
  .nav-links a { padding: 0.75rem 0; border-bottom: 1px solid var(--color-border); }
  .nav-links a:last-child { border-bottom: none; }
}
@media (max-width: 380px) {
  .nav-actions .btn { padding: 0.7rem 0.9rem; font-size: 0.8rem; width: auto; }
  .brand-text strong { font-size: 0.9rem; }
  .brand-text span { font-size: 0.7rem; }
}
@media (min-width: 900px) {
  .hamburger { display: none; }
  .nav-links { display: flex; }
  .footer-wrap { grid-template-columns: 1fr auto; align-items: end; }
}