:root{
  --bg: #0E1420;
  --bg-soft: #131B2B;
  --surface: #182338;
  --surface-raised: #1E2C45;
  --line: #2A3850;
  --text: #E9E6DC;
  --text-dim: #8E97AC;
  --amber: #D98B4B;
  --amber-soft: #6B4A2C;
  --sage: #5C8B7E;
  --ocean: #3E6E8E;
  --forest: #4F7A5B;
  --river: #3E7E8E;
  --font-display: 'Fraunces', serif;
  --font-body: 'IBM Plex Sans', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

*{ box-sizing: border-box; }

html, body{
  margin:0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  min-height: 100vh;
}

.noise-overlay{
  position: fixed; inset:0; pointer-events:none; z-index:0;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

a{ color: inherit; }

/* ---------- topbar ---------- */
.topbar{
  position: sticky; top:0; z-index: 10;
  display:flex; align-items:center; justify-content: space-between;
  padding: 18px 32px;
  background: rgba(14,20,32,0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.brand{ display:flex; align-items:center; gap:12px; }
.brand-mark{ color: var(--amber); display:flex; }
.brand h1{
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.4rem;
  margin: 0;
  letter-spacing: 0.01em;
}
.brand-sub{
  margin:0; font-size: 0.75rem; color: var(--text-dim);
  text-transform: uppercase; letter-spacing: 0.08em;
}
.topbar-actions{ display:flex; gap:10px; }

.btn{
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text);
  cursor:pointer;
  transition: border-color .15s ease, transform .1s ease, background .15s ease;
}
.btn:hover{ border-color: var(--amber); }
.btn:active{ transform: scale(0.97); }
.btn:focus-visible{ outline: 2px solid var(--amber); outline-offset: 2px; }
.btn-ghost{ background: transparent; }
.btn-primary{
  background: var(--amber);
  border-color: var(--amber);
  color: #1C140A;
  font-weight: 600;
}
.btn-primary:hover{ background: #E59C5F; }

/* ---------- layout ---------- */
.layout{
  position: relative; z-index:1;
  display:grid;
  grid-template-columns: 280px 1fr;
  gap: 28px;
  padding: 32px;
  max-width: 1240px;
  margin: 0 auto;
}
@media (max-width: 860px){
  .layout{ grid-template-columns: 1fr; }
}

.settings-panel{
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 22px;
  height: fit-content;
  position: sticky;
  top: 96px;
}
.panel-title{
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.05rem;
  margin: 0 0 16px;
}
.panel-divider{ height:1px; background: var(--line); margin: 18px 0; }
.panel-hint{ font-size: 0.78rem; color: var(--text-dim); line-height:1.5; margin:0; }

.field{ display:block; margin-bottom: 16px; }
.field-label{
  display:block; font-size: 0.75rem; color: var(--text-dim);
  text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 6px;
}
.field-value{ color: var(--amber); font-family: var(--font-mono); text-transform: none; letter-spacing:0; }
select, input[type=text], input[type=number], textarea{
  width:100%;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 8px;
  padding: 9px 10px;
  font-family: var(--font-body);
  font-size: 0.88rem;
}
select:focus, input:focus, textarea:focus{ outline: 2px solid var(--amber); outline-offset: 1px; }
input[type=range]{ width:100%; accent-color: var(--amber); }

/* ---------- timeline ---------- */
.timeline{
  display:flex; flex-direction: column; gap: 22px;
  border-left: 1px dashed var(--line);
  padding-left: 26px;
}

.phase-card{
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 20px 22px;
  position: relative;
}
.phase-card::before{
  content:"";
  position:absolute; left:-31px; top: 26px;
  width:10px; height:10px; border-radius:50%;
  background: var(--amber);
  box-shadow: 0 0 0 4px var(--bg);
}

.phase-card-header{
  display:flex; align-items:center; gap:12px; margin-bottom: 14px;
}
.phase-index{
  font-family: var(--font-mono);
  color: var(--amber);
  font-size: 0.8rem;
  min-width: 22px;
}
.phase-name{
  flex:1;
  font-family: var(--font-display);
  font-size: 1.15rem;
  background: transparent;
  border: none;
  border-bottom: 1px solid transparent;
  padding: 2px 0;
  color: var(--text);
}
.phase-name:focus{ outline:none; border-bottom-color: var(--amber); }

.icon-btn{
  background: transparent; border: none; color: var(--text-dim);
  cursor: pointer; font-size: 0.9rem; padding: 4px 8px; border-radius: 6px;
}
.icon-btn:hover{ color: var(--amber); background: var(--surface-raised); }

.phase-controls{
  display:grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 14px;
  margin-bottom: 14px;
}
.field-inline{ margin-bottom: 0; }

.freq-graph{ width:100%; height: 36px; margin-bottom: 14px; display:block; }
.freq-line{ stroke: var(--amber); opacity: 0.85; }

.segments-list{ display:flex; flex-direction: column; gap: 10px; margin-bottom: 12px; }
.segment-row{
  display:grid;
  grid-template-columns: 1fr 150px 32px;
  gap: 10px;
  align-items: start;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px;
}
.segment-text{ resize: vertical; min-height: 44px; }
.segment-pause-label{
  font-size: 0.75rem; color: var(--text-dim);
  display:flex; align-items:center; gap:6px; white-space:nowrap;
}
.segment-pause{ width: 56px; }

.btn-add-segment{ width: 100%; }
.btn-add-phase{
  display:block; margin: 8px auto 60px; 
}

/* ---------- docks ---------- */
.progress-dock, .result-dock{
  position: fixed; left:50%; bottom: 22px; transform: translateX(-50%);
  z-index: 50; width: min(560px, calc(100% - 32px));
}
.progress-dock-inner, .result-dock-inner{
  background: var(--surface-raised);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px 20px;
  box-shadow: 0 12px 30px rgba(0,0,0,0.45);
  display:flex; align-items:center; gap:14px;
  position: relative;
}
.result-dock-inner{ flex-direction: column; align-items: stretch; gap: 10px; }
.result-dock-inner audio{ width:100%; }

.breathing-dot{
  width:14px; height:14px; border-radius:50%;
  background: var(--amber);
  animation: breathe 4s ease-in-out infinite;
  flex-shrink: 0;
}
@keyframes breathe{
  0%, 100% { transform: scale(0.7); opacity: 0.6; }
  50% { transform: scale(1.15); opacity: 1; }
}
.progress-text{ display:flex; flex-direction:column; gap:2px; flex:1; min-width:0; }
.progress-text strong{ font-size: 0.85rem; }
.progress-text span{ font-size: 0.75rem; color: var(--text-dim); white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.progress-bar-track{
  position:absolute; left:0; right:0; bottom:0; height:3px;
  background: var(--line); border-radius: 0 0 14px 14px; overflow:hidden;
}
.progress-bar-fill{
  height:100%; width:0%; background: var(--amber);
  transition: width .3s ease;
}

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