/*
 * Maverich landing page — foundation styles.
 * Themes are per-section (.theme-dark / .theme-light), not per OS setting:
 * the page alternates dark and light "chapters" like an editorial film site.
 * Tokens → base → layout → pills → header → hero → footer → 404 → motion.
 * Section components live in components.css.
 */

/* ---------- Tokens ---------- */
:root {
  --font-serif: "Instrument Serif", Georgia, "Times New Roman", serif;
  --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  --dark-bg: #0A0C0B;
  --light-bg: #F2F1EC;

  --s1: 4px; --s2: 8px; --s3: 16px; --s4: 24px; --s5: 40px; --s6: 64px; --s7: 96px; --s8: 160px;
  --radius: 20px;
  --radius-sm: 12px;
  --container: 1200px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --nav-h: 72px;
}

/* Dark chapter: near-black with a green cast, mint accent. */
.theme-dark {
  --bg: var(--dark-bg);
  --ink: #F2F1EC;
  --muted: #9A9C97;
  --faint: #4A4D49;           /* unrevealed statement words */
  --accent: #7FC4A8;
  --accent-ink: #0A0C0B;
  --line: rgba(255, 255, 255, 0.10);
  --glass: rgba(255, 255, 255, 0.04);
  --glass-strong: rgba(255, 255, 255, 0.08);
  background: var(--bg); color: var(--ink);
}
/* Light chapter: warm paper, deep green accent. */
.theme-light {
  --bg: var(--light-bg);
  --ink: #121412;
  --muted: #5E605B;
  --faint: #C9C8C1;
  --accent: #1F5F4A;
  --accent-ink: #F2F1EC;
  --line: rgba(0, 0, 0, 0.10);
  --glass: rgba(255, 255, 255, 0.6);
  --glass-strong: #FFFFFF;
  background: var(--bg); color: var(--ink);
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; background: var(--dark-bg); }
body {
  margin: 0; background: var(--dark-bg); color: #F2F1EC;
  font-family: var(--font-sans); font-size: 1.0625rem; line-height: 1.6;
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
h1, h2, h3, p, ul, ol { margin: 0; }
h1, h2, h3 { font-family: var(--font-sans); font-weight: 500; letter-spacing: -0.03em; line-height: 1.02; }
h1 em, h2 em, h3 em, .statement-text em, .numeral-text em {
  font-family: var(--font-serif); font-style: italic; font-weight: 400; letter-spacing: -0.01em;
}
a { color: inherit; }
button { font: inherit; color: inherit; }
svg { display: block; }
::selection { background: color-mix(in srgb, var(--accent, #7FC4A8) 30%, transparent); }
:focus-visible { outline: 2px solid var(--accent, #7FC4A8); outline-offset: 3px; }

.visually-hidden {
  position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: var(--s3); top: -100px; z-index: 30;
  padding: var(--s2) var(--s3); border-radius: 8px; background: #7FC4A8; color: #0A0C0B; text-decoration: none;
}
.skip-link:focus { top: var(--s3); }

/* ---------- Layout ---------- */
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--s4); }
section { position: relative; }
section[id] { scroll-margin-top: var(--nav-h); }

/* Soft band that blends one chapter's background into the next (sits at the top of the new chapter). */
.fade { position: absolute; left: 0; right: 0; top: 0; height: 160px; pointer-events: none; }
.fade-dark-to-light { background: linear-gradient(to bottom, var(--dark-bg), transparent); }
.fade-light-to-dark { background: linear-gradient(to bottom, var(--light-bg), transparent); }

/* Big section lede, left aligned, like a chapter title. */
.chapter-lede { font-size: clamp(2rem, 4.4vw, 3.6rem); max-width: 22ch; margin-bottom: var(--s6); }

/* ---------- Pills ---------- */
.pill {
  display: inline-flex; align-items: center; gap: 8px;
  min-height: 48px; padding: 12px 22px; border-radius: 999px; border: 1px solid transparent;
  font-size: 0.9375rem; font-weight: 500; line-height: 1; text-decoration: none; cursor: pointer;
  white-space: nowrap; touch-action: manipulation;
  transition: background-color 0.2s, border-color 0.2s, color 0.2s, transform 0.2s var(--ease);
}
.pill span { transition: transform 0.25s var(--ease); }
.pill:hover span { transform: translate(2px, -2px); }
.pill:active { transform: scale(0.97); }
.pill-solid { background: var(--ink); color: var(--bg); }
.pill-solid:hover { background: var(--accent); color: var(--accent-ink); }
.pill-line { border-color: var(--line); color: var(--ink); background: transparent; }
.pill-line:hover { border-color: var(--ink); }

/* ---------- Header ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 20; min-height: var(--nav-h);
  display: flex; align-items: center; transition: background-color 0.3s, color 0.3s, border-color 0.3s;
  border-bottom: 1px solid transparent;
}
.site-header[data-nav-theme="dark"]  { --ink: #F2F1EC; --bg: #0A0C0B; --line: rgba(255,255,255,0.1); --accent: #7FC4A8; --accent-ink: #0A0C0B; color: var(--ink); }
.site-header[data-nav-theme="light"] { --ink: #121412; --bg: #F2F1EC; --line: rgba(0,0,0,0.1); --accent: #1F5F4A; --accent-ink: #F2F1EC; color: var(--ink); }
.site-header.is-scrolled {
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  border-bottom-color: var(--line);
}
.nav { display: flex; align-items: center; gap: var(--s4); }
.brand { display: inline-flex; align-items: center; gap: 10px; font-family: var(--font-serif); font-size: 1.5rem; line-height: 1; text-decoration: none; }
.brand svg { width: 22px; height: 22px; color: var(--accent); flex: none; }
.nav-links { display: flex; gap: var(--s4); margin-left: auto; padding: 0; list-style: none; }
.nav-links a { color: var(--muted, #9A9C97); font-size: 0.9375rem; text-decoration: none; transition: color 0.2s; }
.site-header[data-nav-theme="light"] .nav-links a { color: #5E605B; }
.nav-links a:hover { color: var(--ink); }
.nav .pill { min-height: 42px; padding: 10px 18px; font-size: 0.875rem; }

/* ---------- Hero ---------- */
.hero { min-height: 100svh; display: grid; place-items: center; overflow: hidden; padding: calc(var(--nav-h) + var(--s6)) 0 var(--s7); }
.hero-canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-glow {
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(60% 50% at 50% 55%, rgba(127, 196, 168, 0.16), transparent 70%),
    radial-gradient(40% 35% at 80% 20%, rgba(214, 160, 96, 0.10), transparent 70%),
    radial-gradient(45% 40% at 15% 85%, rgba(127, 196, 168, 0.08), transparent 70%);
}
.hero-inner { position: relative; z-index: 1; display: grid; justify-items: center; text-align: center; padding-inline: var(--s4); }
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px; margin-bottom: var(--s5);
  padding: 7px 14px 7px 10px; border: 1px solid var(--line); border-radius: 999px;
  background: var(--glass); color: var(--muted); font-size: 0.8125rem; font-weight: 500;
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
}
.pulse { position: relative; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }
.pulse::after { content: ""; position: absolute; inset: -4px; border-radius: 50%; border: 1px solid var(--accent); opacity: 0; animation: pulse 2.4s ease-out infinite; }
@keyframes pulse { 0% { transform: scale(0.6); opacity: 0.8; } 70%, 100% { transform: scale(1.5); opacity: 0; } }
.hero h1 { font-size: clamp(2.9rem, 8.4vw, 7.25rem); max-width: 12ch; text-wrap: balance; }
.hero h1 em { color: var(--accent); }
.hero-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--s3); margin-top: var(--s6); }
.scroll-cue { position: absolute; bottom: 28px; left: 50%; width: 44px; height: 44px; margin-left: -22px; display: grid; place-items: center; }
.scroll-cue span { width: 1px; height: 36px; background: linear-gradient(var(--muted), transparent); animation: cue 1.8s ease-in-out infinite; }
@keyframes cue { 0% { transform: scaleY(0); transform-origin: top; } 50% { transform: scaleY(1); transform-origin: top; } 51% { transform-origin: bottom; } 100% { transform: scaleY(0); transform-origin: bottom; } }

/* ---------- Footer ---------- */
.site-footer { position: relative; overflow: hidden; padding-top: var(--s6); }
.footer-inner { display: flex; flex-wrap: wrap; align-items: center; gap: var(--s2) var(--s5); padding-bottom: var(--s5); border-top: 1px solid var(--line); padding-top: var(--s4); color: var(--muted); font-size: 0.875rem; }
.footer-inner a { text-decoration: none; }
.footer-inner a:hover { color: var(--ink); }
.footer-mark {
  font-family: var(--font-serif); font-size: clamp(6rem, 24vw, 22rem); line-height: 0.72; text-align: center;
  color: color-mix(in srgb, var(--accent) 18%, transparent); letter-spacing: -0.03em; user-select: none;
  transform: translateY(14%);
}

/* ---------- 404 ---------- */
.not-found { min-height: 70vh; display: grid; align-content: center; gap: var(--s4); padding-block: var(--s8) var(--s7); }
.not-found h1 { font-size: clamp(2.75rem, 7vw, 4.5rem); }
.not-found .lead { color: var(--muted); font-size: 1.1875rem; }

/* ---------- Responsive ---------- */
@media (max-width: 759px) { .nav-links { display: none; } .nav .pill { margin-left: auto; } }
@media (max-width: 640px) { .container { padding-inline: var(--s3); } .chapter-lede { margin-bottom: var(--s5); } }

/* ---------- Motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}