/* ==========================================
   SONOFORM — Theme Stylesheet
   Kintsugi-inspired: gold on dark, layered depth
   ========================================== */

:root {
  --bg: #0d0d14;
  --bg-alt: #111118;
  --surface: #16161f;
  --surface-2: #1d1d28;
  --fg: #f4ede2;
  --fg-muted: #9b8f7a;
  --fg-dim: #5a5048;
  --gold: #c9a96e;
  --gold-light: #e0c98a;
  --gold-dim: rgba(201,169,110,0.15);
  --border: rgba(201,169,110,0.12);
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
}

/* RESET */
*, *::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-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* HERO */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 6rem 2rem 4rem;
  overflow: hidden;
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
}
.orb-1 {
  width: 700px; height: 700px;
  background: radial-gradient(circle, rgba(201,169,110,0.18) 0%, transparent 70%);
  top: -150px; left: -100px;
  animation: drift1 12s ease-in-out infinite;
}
.orb-2 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(180,120,60,0.12) 0%, transparent 70%);
  bottom: 50px; right: -80px;
  animation: drift2 16s ease-in-out infinite;
}
.orb-3 {
  width: 350px; height: 350px;
  background: radial-gradient(circle, rgba(201,169,110,0.08) 0%, transparent 70%);
  top: 40%; left: 50%;
  animation: drift3 20s ease-in-out infinite;
}
@keyframes drift1 {
  0%, 100% { transform: translate(0,0); }
  50% { transform: translate(30px, 20px); }
}
@keyframes drift2 {
  0%, 100% { transform: translate(0,0); }
  50% { transform: translate(-20px, -30px); }
}
@keyframes drift3 {
  0%, 100% { transform: translate(-50%,0); }
  50% { transform: translate(-50%, 30px); }
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 860px;
}

.hero-eyebrow {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.5rem;
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 6.5rem);
  font-weight: 400;
  line-height: 1.08;
  color: var(--fg);
  margin-bottom: 1.75rem;
}
.hero-headline em {
  font-style: italic;
  color: var(--gold);
}

.hero-sub {
  font-size: 1.125rem;
  font-weight: 300;
  color: var(--fg-muted);
  max-width: 540px;
  line-height: 1.7;
}

.hero-wave {
  position: relative;
  z-index: 2;
  margin-top: 5rem;
  opacity: 0.7;
}

/* MANIFESTO */
.manifesto {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 6rem 2rem;
}
.manifesto-inner {
  max-width: 860px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 3rem;
  align-items: start;
}
.manifesto-label {
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  padding-top: 0.4rem;
}
.manifesto-body p {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 400;
  line-height: 1.65;
  color: var(--fg);
  margin-bottom: 1.5rem;
}
.manifesto-body p em { color: var(--gold); font-style: italic; }
.manifesto-body p:last-child { margin-bottom: 0; }

/* SOUNDS */
.sounds {
  padding: 7rem 2rem;
  max-width: 1100px;
  margin: 0 auto;
}
.sounds-header {
  margin-bottom: 4rem;
}
.section-tag {
  display: block;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1rem;
}
.sounds-header h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 400;
  line-height: 1.2;
  color: var(--fg);
}
.sounds-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}
.sound-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2.5rem;
  transition: border-color 0.3s ease;
}
.sound-card:hover { border-color: rgba(201,169,110,0.35); }
.sound-meta {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.75rem;
}
.sound-card h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--fg);
  margin-bottom: 0.75rem;
}
.sound-card p {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.65;
  margin-bottom: 1.25rem;
}
.sound-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.sound-tags span {
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  padding: 0.25rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 2px;
  color: var(--fg-dim);
}

/* COMPOSITION */
.composition {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  padding: 7rem 2rem;
}
.composition-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}
.composition-text h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 400;
  line-height: 1.2;
  margin: 1rem 0 1.5rem;
  color: var(--fg);
}
.composition-text p {
  font-size: 1rem;
  color: var(--fg-muted);
  line-height: 1.7;
  margin-bottom: 2.5rem;
}
.composition-steps {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.composition-steps li {
  display: flex;
  align-items: baseline;
  gap: 1.25rem;
  font-size: 0.95rem;
  color: var(--fg-muted);
}
.step-num {
  font-family: var(--font-display);
  font-size: 0.75rem;
  color: var(--gold);
  font-style: italic;
  flex-shrink: 0;
  width: 2rem;
}

/* Composition viz */
.composition-viz {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}
.viz-blocks {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  height: 120px;
}
.viz-block {
  background: var(--gold-dim);
  border: 1px solid var(--border);
  border-radius: 2px;
  width: 28px;
  transition: all 0.8s ease;
}
.vb-1 { height: 40%; animation: barPulse 3.2s ease-in-out infinite; }
.vb-2 { height: 65%; animation: barPulse 3.8s ease-in-out infinite 0.2s; }
.vb-3 { height: 90%; animation: barPulse 2.9s ease-in-out infinite 0.4s; }
.vb-4 { height: 55%; animation: barPulse 3.5s ease-in-out infinite 0.6s; }
.vb-5 { height: 75%; animation: barPulse 4.0s ease-in-out infinite 0.3s; }
.vb-6 { height: 45%; animation: barPulse 3.3s ease-in-out infinite 0.5s; }
@keyframes barPulse {
  0%, 100% { height: var(--base, 50%); background: var(--gold-dim); }
  50% { height: calc(var(--base, 50%) + 20%); background: rgba(201,169,110,0.3); }
}
.viz-label {
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--fg-dim);
  animation: blink 2s ease-in-out infinite;
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* CLOSING */
.closing {
  padding: 8rem 2rem;
  text-align: center;
}
.closing-inner {
  max-width: 680px;
  margin: 0 auto;
}
.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 400;
  line-height: 1.2;
  color: var(--fg);
  margin-bottom: 1.5rem;
}
.closing p {
  font-size: 1.05rem;
  color: var(--fg-muted);
  line-height: 1.75;
  max-width: 560px;
  margin: 0 auto;
}

/* FOOTER */
footer {
  border-top: 1px solid var(--border);
  padding: 3rem 2rem;
  background: var(--bg-alt);
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  text-align: center;
}
.footer-brand {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--gold);
  letter-spacing: 0.05em;
}
.footer-tagline {
  font-size: 0.8rem;
  color: var(--fg-dim);
  font-weight: 300;
}
.footer-copy {
  font-size: 0.7rem;
  color: var(--fg-dim);
  margin-top: 1rem;
}

/* TOP NAV */
.top-nav {
  position: relative;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1.25rem 2rem;
}
.nav-brand {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--gold);
  text-decoration: none;
  letter-spacing: 0.05em;
}
.nav-link {
  font-size: 0.82rem;
  font-weight: 400;
  color: var(--fg-muted);
  text-decoration: none;
  letter-spacing: 0.04em;
  transition: color 0.2s;
}
.nav-link:hover { color: var(--fg); }
.nav-back {
  font-size: 0.82rem;
  color: var(--fg-muted);
  text-decoration: none;
  margin-left: 1.5rem;
  transition: color 0.2s;
}
.nav-back:hover { color: var(--fg); }

/* RESPONSIVE */
@media (max-width: 768px) {
  .manifesto-inner { grid-template-columns: 1fr; gap: 1rem; }
  .composition-inner { grid-template-columns: 1fr; gap: 3rem; }
  .composition-viz { order: -1; }
  .hero { padding: 4rem 1.5rem 3rem; }
  .hero-headline { font-size: 2.8rem; }
  .manifesto, .sounds, .composition, .closing { padding: 5rem 1.5rem; }
}

@media (max-width: 480px) {
  .hero-headline { font-size: 2.2rem; }
  .sounds-grid { grid-template-columns: 1fr; }
  .viz-blocks { height: 80px; }
  .viz-block { width: 20px; }
}

/* SCROLLBAR */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--gold-dim); border-radius: 3px; }

/* CTA LINK */
.cta-link {
  display: inline-block;
  padding: 0.9rem 2rem;
  background: var(--gold);
  color: #0d0d14;
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  border-radius: 4px;
  transition: background 0.2s;
}
.cta-link:hover { background: var(--gold-light); }

/* SELECTION */
::selection { background: rgba(201,169,110,0.25); color: var(--fg); }

/* ==========================================
   SESSIONS PAGE
   ========================================== */
.sessions-page {
  max-width: 720px;
  margin: 0 auto;
  padding: 4rem 2rem 8rem;
}
.sessions-header {
  margin-bottom: 3rem;
}
.sessions-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 400;
  color: var(--fg);
  margin-top: 0.75rem;
}
.sessions-title em { color: var(--gold); font-style: italic; }

.sessions-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.sessions-loading, .sessions-empty {
  font-size: 0.9rem;
  color: var(--fg-muted);
  padding: 2rem 0;
}
.sessions-empty a { color: var(--gold); }

/* SESSION CARD */
.session-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1.75rem 2rem;
  transition: border-color 0.2s;
}
.session-card:hover { border-color: rgba(201,169,110,0.3); }

.session-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.75rem;
}
.session-name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--fg);
}
.session-unnamed {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--fg-muted);
  font-style: italic;
}
.session-date {
  font-size: 0.75rem;
  color: var(--fg-dim);
  flex-shrink: 0;
}

.session-meta-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.5rem;
}
.session-context-badge {
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold);
  padding: 0.2rem 0.6rem;
  border: 1px solid rgba(201,169,110,0.3);
  border-radius: 2px;
}
.session-duration {
  font-size: 0.82rem;
  color: var(--fg-muted);
}
.session-intent {
  font-size: 0.85rem;
  color: var(--fg-muted);
  font-style: italic;
  margin: 0.75rem 0 0.25rem;
  line-height: 1.5;
}

.session-replay-link {
  display: inline-block;
  margin-top: 1rem;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--gold);
  text-decoration: none;
  letter-spacing: 0.04em;
  transition: color 0.2s;
}
.session-replay-link:hover { color: var(--gold-light); }

.session-fav-btn {
  margin-left: auto;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--fg-dim);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1rem;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}
.session-fav-btn:hover {
  color: var(--gold-light);
  border-color: rgba(201,169,110,0.4);
}
.session-fav-btn.is-on {
  color: var(--gold);
  border-color: rgba(201,169,110,0.5);
  background: rgba(201,169,110,0.08);
}
.session-fav-icon { line-height: 1; }
.session-card.is-favorited { border-color: rgba(201,169,110,0.35); }

/* SAVE SESSION ROW (on /generate) */
.save-session-row {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.25rem;
  align-items: center;
}
.session-name-input {
  flex: 1;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.6rem 1rem;
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 0.85rem;
  outline: none;
  transition: border-color 0.2s;
}
.session-name-input::placeholder { color: var(--fg-dim); }
.session-name-input:focus { border-color: rgba(201,169,110,0.4); }

.save-session-btn {
  background: transparent;
  border: 1px solid rgba(201,169,110,0.3);
  border-radius: 4px;
  padding: 0.6rem 1.25rem;
  color: var(--gold);
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
  white-space: nowrap;
}
.save-session-btn:hover:not(:disabled) {
  background: var(--gold-dim);
  border-color: rgba(201,169,110,0.5);
}
.save-session-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.save-confirm {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.75rem;
  font-size: 0.82rem;
  color: var(--fg-muted);
}
.save-confirm a {
  color: var(--gold);
  text-decoration: none;
}
.save-confirm a:hover { color: var(--gold-light); }

.player-share-row {
  display: flex;
  align-items: center;
  margin-top: 0.6rem;
}

.player-share-btn {
  background: transparent;
  border: 1px solid rgba(201,169,110,0.3);
  border-radius: 4px;
  padding: 0.6rem 1.25rem;
  color: var(--gold);
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
  white-space: nowrap;
}
.player-share-btn:hover {
  background: var(--gold-dim);
  border-color: rgba(201,169,110,0.5);
}

.share-confirm {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: 0.6rem;
  font-size: 0.82rem;
  color: var(--fg-muted);
}

.player-share-fallback {
  flex: 1;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 0.85rem;
  padding: 0.55rem 0.9rem;
  border-radius: 4px;
  margin-top: 0.6rem;
}
.player-share-fallback:focus { outline: none; border-color: rgba(201,169,110,0.4); }

/* NAV BADGE */
.nav-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 4px;
  background: var(--gold);
  color: #0d0d14;
  font-size: 0.65rem;
  font-weight: 700;
  border-radius: 9px;
  margin-left: 0.35rem;
}