/* style.css — music.serezhkin.com
   Dark, minimal. Album art drives the accent color (set by colors.js).
   One column, readable at any width. */

:root {
  --bg:           #0d0d0d;
  --surface:      #141414;
  --border:       #1c1c1c;
  --accent:       #8a7060;       /* overridden per-page by colors.js */
  --accent-hi:    #c4a882;       /* lighter accent for hover states */
  --fg:           #e0e0e0;
  --fg-muted:     #666;
  --code-bg:      #080808;
  --font-sans:    system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono:    'SF Mono', 'Fira Code', 'Consolas', monospace;
  --max-w:        780px;
  --gap:          2rem;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.7;
  min-height: 100vh;
}

a { color: var(--accent-hi); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Site header ─────────────────────────────────────────────── */

.site-header {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1rem 2rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-name { color: var(--fg-muted); }
.site-name:hover { color: var(--fg); text-decoration: none; }
.series-name { color: var(--accent-hi); }

/* ── Hero ────────────────────────────────────────────────────── */

.hero {
  position: relative;
  height: 46vh;
  min-height: 260px;
  display: flex;
  align-items: flex-end;
  padding: 3rem 2rem 2.5rem;
  overflow: hidden;
}

/* blurred album art set via JS backgroundImage */
.hero-art {
  position: absolute;
  inset: -30px;
  background-size: cover;
  background-position: center;
  filter: blur(24px) saturate(0.5) brightness(0.35);
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, transparent 0%, rgba(0,0,0,0.82) 100%);
  z-index: 1;
}

.track-title {
  position: relative;
  z-index: 2;
  font-size: clamp(2rem, 6vw, 5.5rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #fff;
  line-height: 1.05;
  word-break: break-word;
}

/* ── Track navigation ────────────────────────────────────────── */

.track-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 2rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.track-nav--bottom {
  border-top: 1px solid var(--border);
  border-bottom: none;
  margin-top: var(--gap);
}

.nav-prev, .nav-next, .nav-toc {
  color: var(--fg-muted);
  transition: color 0.15s;
}
.nav-prev:hover, .nav-next:hover, .nav-toc:hover {
  color: var(--accent-hi);
  text-decoration: none;
}
.nav-toc { text-align: center; }
.nav-disabled { opacity: 0; pointer-events: none; }

/* ── Main content column ─────────────────────────────────────── */

.track-content {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: var(--gap) 2rem;
  display: flex;
  flex-direction: column;
  gap: calc(var(--gap) * 1.5);
}

/* ── Player ──────────────────────────────────────────────────── */

.player-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.25rem 1.5rem;
}

.player-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.play-btn {
  background: none;
  border: 1px solid var(--accent);
  color: var(--accent-hi);
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 50%;
  font-size: 0.85rem;
  cursor: pointer;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.15s, color 0.15s;
}
.play-btn:hover { border-color: var(--accent-hi); color: #fff; }

.progress-wrap {
  flex: 1;
  height: 3px;
  background: var(--border);
  border-radius: 2px;
  cursor: pointer;
  position: relative;
}

.progress-bar {
  height: 100%;
  width: 0%;
  background: var(--accent-hi);
  border-radius: 2px;
  transition: width 0.1s linear;
}

.time-display {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--fg-muted);
  white-space: nowrap;
  flex-shrink: 0;
}

.track-indicator {
  font-size: 0.7rem;
  color: var(--fg-muted);
  flex-shrink: 0;
}

/* ── Code fields ─────────────────────────────────────────────── */

.field-section { display: flex; flex-direction: column; gap: 0.6rem; }

.field-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.field-header h2 {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-muted);
  font-weight: 500;
}

.copy-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--fg-muted);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.2rem 0.6rem;
  border-radius: 3px;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}
.copy-btn:hover { border-color: var(--accent); color: var(--accent-hi); }
.copy-btn.copied { color: var(--accent-hi); border-color: var(--accent); }

.code-block {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1.2rem 1.4rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.65;
  color: #bbb;
  white-space: pre-wrap;
  word-break: break-word;
  overflow-x: auto;
  max-height: 22rem;
  overflow-y: auto;
}

/* ── Story ───────────────────────────────────────────────────── */

.story-section h2 {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-muted);
  font-weight: 500;
  margin-bottom: var(--gap);
}

.story-entry {
  margin-bottom: calc(var(--gap) * 1.2);
}

.story-key {
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-hi);
  font-weight: 600;
  margin-bottom: 0.6rem;
}

.story-text {
  color: var(--fg);
  font-size: 0.97rem;
  line-height: 1.8;
  margin-bottom: 0.8rem;
}

/* ── Series index page ───────────────────────────────────────── */

.series-header {
  padding: 3rem 2rem 1.5rem;
  max-width: var(--max-w);
  margin: 0 auto;
  border-bottom: 1px solid var(--border);
}

.series-header h1 {
  font-size: clamp(1.6rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 0.4rem;
}

.series-header .count {
  font-size: 0.8rem;
  color: var(--fg-muted);
  letter-spacing: 0.06em;
}

.series-list {
  list-style: none;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 1rem 2rem 3rem;
}

.series-item {
  display: grid;
  grid-template-columns: 2.5rem 1fr auto;
  align-items: baseline;
  gap: 1rem;
  padding: 0.8rem 0;
  border-bottom: 1px solid var(--border);
}

.track-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--fg-muted);
}

.track-link {
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--fg);
  transition: color 0.15s;
}
.track-link:hover { color: var(--accent-hi); text-decoration: none; }

.track-genre {
  font-size: 0.72rem;
  color: var(--fg-muted);
  text-align: right;
  max-width: 220px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ── Homepage ────────────────────────────────────────────────── */

.home-header {
  padding: 4rem 2rem 2rem;
  max-width: var(--max-w);
  margin: 0 auto;
}

.home-header h1 {
  font-size: clamp(1.4rem, 3vw, 2.2rem);
  font-weight: 300;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 0.3rem;
}

.home-header .tagline {
  font-size: 0.8rem;
  color: var(--fg-muted);
  letter-spacing: 0.04em;
}

.home-series-list {
  list-style: none;
  max-width: var(--max-w);
  margin: 2rem auto 0;
  padding: 0 2rem 4rem;
}

.series-card {
  border-bottom: 1px solid var(--border);
}

.series-card-link {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 2rem;
  padding: 1.4rem 0;
  color: var(--fg);
  transition: color 0.15s;
}
.series-card-link:hover { color: var(--accent-hi); text-decoration: none; }

.series-card-title {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.series-card-meta {
  font-size: 0.75rem;
  color: var(--fg-muted);
  white-space: nowrap;
}

/* ── Responsive ──────────────────────────────────────────────── */

@media (max-width: 600px) {
  .site-header { padding: 0.8rem 1rem; }
  .hero { padding: 2rem 1rem 1.5rem; }
  .track-nav { padding: 0.7rem 1rem; }
  .track-content { padding: var(--gap) 1rem; }
  .series-header, .series-list { padding-left: 1rem; padding-right: 1rem; }
  .home-header, .home-series-list { padding-left: 1rem; padding-right: 1rem; }
  .series-item { grid-template-columns: 2rem 1fr; }
  .track-genre { display: none; }
}