/* ===================================================================
   Chilling-Vibes — landing page styles
   Typography: Besley (serif display) · Geist (sans body) · Geist Mono
   Palette: warm off-white ground, near-black ink, restrained slate-blue accent
   =================================================================== */

:root {
  --bg: oklch(0.985 0.005 85);
  --surface: oklch(0.97 0.005 85);
  --surface-strong: oklch(0.94 0.006 85);
  --border: oklch(0.9 0.008 80);
  --border-strong: oklch(0.82 0.01 80);

  --ink: oklch(0.22 0.008 60);
  --text: oklch(0.32 0.008 60);
  --muted: oklch(0.5 0.007 60);
  --faint: oklch(0.66 0.006 60);

  --accent: oklch(0.5 0.07 240);
  --accent-hover: oklch(0.4 0.09 240);
  --accent-tint: oklch(0.95 0.02 240);

  --code-bg: oklch(0.2 0.01 240);
  --code-text: oklch(0.92 0.008 80);
  --code-comment: oklch(0.6 0.01 80);

  --radius: 6px;
  --radius-lg: 12px;

  --font-serif: "Besley", "Besley Fallback", Georgia, "Times New Roman", serif;
  --font-sans: "Geist", "Geist Fallback", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --font-mono: "Geist Mono", "JetBrains Mono", "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; text-size-adjust: 100%; }

body {
  font-family: var(--font-sans);
  font-weight: 400;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "kern" 1, "liga" 1, "calt" 1, "ss01" 1;
  text-rendering: optimizeLegibility;
}

.wrap {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 3vw, 2.5rem);
}

/* ===================
   Typography
   =================== */
h1, h2, h3 {
  font-family: var(--font-serif);
  color: var(--ink);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.1;
}

h1 {
  font-size: clamp(2.4rem, 4.2vw + 1rem, 4.25rem);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.02em;
}

h1 em {
  font-style: italic;
  font-weight: 500;
  color: var(--accent);
}

h2 {
  font-size: clamp(1.75rem, 2.4vw + 0.9rem, 2.8rem);
  line-height: 1.15;
  margin-bottom: 0.5em;
}

h3 {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 1.0625rem;
  color: var(--ink);
  letter-spacing: -0.005em;
  line-height: 1.35;
}

p { color: var(--text); }

a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: color-mix(in oklch, var(--accent) 30%, transparent);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color 0.15s ease, text-decoration-color 0.15s ease;
}
a:hover { color: var(--accent-hover); text-decoration-color: currentColor; }

.eyebrow {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 1rem;
}

code, kbd, pre {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

:not(pre) > code {
  background: var(--surface-strong);
  color: var(--ink);
  padding: 0.12em 0.4em;
  border-radius: 4px;
  font-size: 0.88em;
}

kbd {
  display: inline-block;
  min-width: 1.3em;
  padding: 0.1em 0.45em;
  background: var(--surface);
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  border-radius: 4px;
  font-size: 0.78em;
  color: var(--ink);
  text-align: center;
  font-weight: 500;
}

/* ===================
   Header / Nav
   =================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in oklch, var(--bg) 88%, transparent);
  backdrop-filter: saturate(1.2) blur(8px);
  -webkit-backdrop-filter: saturate(1.2) blur(8px);
  border-bottom: 1px solid color-mix(in oklch, var(--border) 60%, transparent);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  padding-bottom: 14px;
}

.wordmark {
  font-family: var(--font-serif);
  font-weight: 500;
  font-style: italic;
  font-size: 1.2rem;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.01em;
}
.wordmark:hover { color: var(--accent); }

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  font-size: 0.9rem;
}
.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
}
.site-nav a:hover { color: var(--ink); }

.site-nav .ghost-btn {
  padding: 0.45rem 0.85rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  color: var(--ink);
  transition: background 0.15s ease, border-color 0.15s ease;
}
.site-nav .ghost-btn:hover {
  background: var(--surface);
  border-color: var(--ink);
  color: var(--ink);
}

@media (max-width: 620px) {
  .site-nav a:not(.ghost-btn) { display: none; }
}

/* ===================
   Hero
   =================== */
.hero {
  padding: clamp(3rem, 8vw, 6rem) 0 clamp(2.5rem, 5vw, 4rem);
}

.hero-wrap { max-width: 920px; text-align: left; }

.hero .tagline {
  font-size: clamp(1.05rem, 0.5vw + 1rem, 1.2rem);
  color: var(--text);
  max-width: 58ch;
  margin-top: 1.25rem;
  line-height: 1.55;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

/* Repo stats pill — formal social proof, restrained */
.repo-stats {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  margin-top: 1.25rem;
  padding: 0.5rem 0.9rem 0.5rem 0.95rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 400;
  letter-spacing: 0.005em;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}
.repo-stats:hover {
  background: var(--surface-strong);
  border-color: var(--border-strong);
  color: var(--ink);
  text-decoration: none;
}

.repo-stat {
  display: inline-flex;
  align-items: center;
  gap: 0.42rem;
  line-height: 1;
}
.repo-stat svg {
  width: 14px;
  height: 14px;
  color: var(--accent);
  flex-shrink: 0;
}
.repo-stat-num {
  font-weight: 600;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.005em;
}
.repo-stat-label { color: var(--muted); }

.repo-stat-sep {
  color: var(--faint);
  font-size: 0.9em;
}

.repo-stat-cta {
  color: var(--faint);
  font-size: 0.95em;
  margin-left: 0.15rem;
  transition: color 0.15s ease, transform 0.15s ease;
}
.repo-stats:hover .repo-stat-cta { color: var(--ink); transform: translate(1px, -1px); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.7rem 1.15rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease, transform 0.05s ease;
}
.btn:active { transform: translateY(1px); }

.btn.primary {
  background: var(--ink);
  color: var(--bg);
}
.btn.primary:hover { background: color-mix(in oklch, var(--ink) 85%, var(--accent) 20%); color: var(--bg); text-decoration: none; }

.btn.ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--border-strong);
}
.btn.ghost:hover { background: var(--surface); border-color: var(--ink); text-decoration: none; color: var(--ink); }

.hero-visual {
  margin-top: clamp(2.5rem, 5vw, 4rem);
  max-width: 1040px;
  position: relative;
}
.hero-visual img,
.hero-visual video {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface-strong);
  box-shadow:
    0 1px 2px rgba(20, 24, 34, 0.04),
    0 24px 50px -22px rgba(20, 24, 34, 0.25);
}
.hero-visual video {
  aspect-ratio: 16 / 9;
  object-fit: cover;
  outline: none;
}
.hero-visual figcaption {
  margin-top: 0.9rem;
  font-size: 0.82rem;
  color: var(--faint);
  text-align: center;
  letter-spacing: 0.01em;
}

/* Small "PLAYING" badge overlay to signal the hero is actually moving */
.playing-badge {
  position: absolute;
  top: 14px;
  left: 16px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 11px;
  background: color-mix(in oklch, var(--ink) 78%, transparent);
  color: var(--bg);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  pointer-events: none;
}

.playing-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #ff6155;
  box-shadow: 0 0 0 0 rgba(255, 97, 85, 0.6);
  animation: pulse-dot 1.6s ease-out infinite;
}

@keyframes pulse-dot {
  0% { box-shadow: 0 0 0 0 rgba(255, 97, 85, 0.6); }
  70% { box-shadow: 0 0 0 8px rgba(255, 97, 85, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 97, 85, 0); }
}

@media (prefers-reduced-motion: reduce) {
  .playing-dot { animation: none; }
}

/* ===================
   Section scaffolding
   =================== */
section {
  padding: clamp(3rem, 6vw, 5rem) 0;
  border-top: 1px solid var(--border);
}
section:first-of-type { border-top: 0; }

section .eyebrow + h2 { margin-top: 0; }

/* "Why" */
.why .lede {
  font-family: var(--font-serif);
  font-size: clamp(1.15rem, 1vw + 1rem, 1.4rem);
  font-weight: 400;
  color: var(--text);
  line-height: 1.55;
  max-width: 62ch;
  margin-top: 1.25rem;
}

/* ===================
   How it works — 3 steps
   =================== */
.steps {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1rem, 2vw, 1.75rem);
  margin-top: 2.25rem;
}
.steps li {
  padding: 1.75rem 1.6rem 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}
.step-num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.04em;
  margin-bottom: 0.75rem;
}
.steps h3 {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -0.01em;
  margin-bottom: 0.4rem;
}
.steps p {
  font-size: 0.95rem;
  color: var(--text);
  line-height: 1.55;
}
.steps em { font-style: italic; color: var(--ink); }

@media (max-width: 820px) {
  .steps { grid-template-columns: 1fr; }
}

/* ===================
   Features grid
   =================== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1rem, 1.5vw, 1.5rem);
  margin-top: 2.25rem;
}
.feature {
  padding: 1.5rem 1.4rem 1.35rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.feature:hover {
  border-color: var(--border-strong);
  transform: translateY(-1px);
}
.feature h3 {
  font-size: 1rem;
  color: var(--ink);
  margin-bottom: 0.5rem;
  font-weight: 600;
}
.feature p {
  font-size: 0.9rem;
  color: var(--text);
  line-height: 1.55;
}

@media (max-width: 900px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .feature-grid { grid-template-columns: 1fr; }
}

/* ===================
   Quickstart
   =================== */
.quickstart-list {
  list-style: none;
  display: grid;
  gap: 1.5rem;
  margin-top: 2.25rem;
}
.quickstart-list li {
  padding: 1.5rem 1.6rem 1.35rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}
.quickstart-header {
  display: flex;
  align-items: baseline;
  gap: 0.85rem;
  margin-bottom: 0.75rem;
}
.quickstart-header .step-num { margin-bottom: 0; }
.quickstart-header h3 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.quickstart-note {
  margin-top: 0.75rem;
  font-size: 0.88rem;
  color: var(--muted);
}

pre {
  background: var(--code-bg);
  color: var(--code-text);
  padding: 1rem 1.1rem;
  border-radius: var(--radius);
  font-size: 0.88rem;
  line-height: 1.65;
  overflow-x: auto;
  font-variant-ligatures: common-ligatures;
}
pre code { color: inherit; background: transparent; padding: 0; }

.post-note {
  margin-top: 1.75rem;
  font-size: 0.93rem;
  color: var(--muted);
}

/* ===================
   Footer
   =================== */
.site-footer {
  padding: 2.5rem 0 3rem;
  border-top: 1px solid var(--border);
  background: var(--surface);
}
.footer-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.88rem;
  color: var(--muted);
}
.footer-wrap a { color: var(--ink); font-weight: 500; text-decoration: none; }
.footer-wrap a:hover { color: var(--accent); text-decoration: underline; text-decoration-color: currentColor; }
.footer-links { display: inline-flex; gap: 0.6rem; align-items: baseline; }
.footer-links span { color: var(--faint); }