:root {
  --bg: #e9e6e1;
  --card: #ffffff;
  --ink: #141414;
  --ink-2: #5f5f5f;
  --ink-3: #a3a3a3;
  --line: #ececec;
  --chip: #f4f4f3;
  --accent: #e8806a;
  --primary-bg: #111;
  --primary-ink: #fff;
  --shadow: 0 30px 80px rgba(0,0,0,.18);
  --c1: #2c6e49; --c2: #e98a6c; --c3: #ffd3c2;
  --ok: #2f8f5b; --err: #c8443c;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0d0d0e; --card: #141416; --ink: #f2f2f2; --ink-2: #b4b4b4; --ink-3: #6a6a6a;
    --line: #26262a; --chip: #1f1f23; --primary-bg: #f2f2f2; --primary-ink: #111;
    --shadow: 0 30px 80px rgba(0,0,0,.6); --ok: #5cc98d; --err: #f07a70; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0d0d0e; --card: #141416; --ink: #f2f2f2; --ink-2: #b4b4b4; --ink-3: #6a6a6a;
  --line: #26262a; --chip: #1f1f23; --primary-bg: #f2f2f2; --primary-ink: #111;
  --shadow: 0 30px 80px rgba(0,0,0,.6); --ok: #5cc98d; --err: #f07a70; color-scheme: dark;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { height: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 14px/1.45 Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  overflow: hidden;
}
.aura {
  position: fixed; inset: -10%;
  background:
    radial-gradient(40% 50% at 10% 85%, var(--c1), transparent 70%),
    radial-gradient(45% 55% at 90% 15%, var(--c2), transparent 70%),
    radial-gradient(35% 40% at 70% 95%, var(--c3), transparent 70%),
    radial-gradient(40% 40% at 20% 10%, var(--c2), transparent 70%);
  filter: blur(40px) saturate(1.15); opacity: .9;
  transition: background 1.2s ease;
}

.card {
  position: relative; margin: 18px; height: calc(100vh - 36px); height: calc(100dvh - 36px);
  background: var(--card); border-radius: 14px; box-shadow: var(--shadow);
  display: grid; grid-template-rows: auto minmax(0, 1fr) auto; grid-template-columns: minmax(0, 1fr); overflow: hidden;
}

/* ---------- top bar ---------- */
.top { display: flex; align-items: center; gap: 16px; padding: 18px 26px; z-index: 3; }
.brand { font-weight: 600; letter-spacing: -.01em; font-size: 15px; white-space: nowrap; }
.brand .bars { font-weight: 700; margin-right: 2px; letter-spacing: -2px; }
.brand .dim { color: var(--ink-3); font-weight: 500; }
.picker {
  margin: 0 auto; display: flex; gap: 4px; padding: 4px; border-radius: 999px;
  background: var(--chip); border: 1px solid var(--line); max-width: 100%; min-width: 0; flex: 0 1 auto; overflow: hidden;
}
.picker label { display: flex; align-items: center; gap: 6px; padding: 4px 6px 4px 12px; border-radius: 999px; min-width: 0; flex: 0 1 auto; }
.picker select { min-width: 0; }
.picker label:hover { background: var(--card); }
.picker span { color: var(--ink-3); font-size: 12px; }
.picker select {
  appearance: none; border: 0; background: transparent; color: var(--ink); font: inherit; font-weight: 500;
  padding: 2px 14px 2px 0; cursor: pointer; max-width: 190px; text-overflow: ellipsis;
  background-image: linear-gradient(45deg, transparent 50%, var(--ink-3) 50%), linear-gradient(135deg, var(--ink-3) 50%, transparent 50%);
  background-position: right 4px center, right 0 center; background-size: 4px 4px; background-repeat: no-repeat;
}
.picker select:focus-visible { outline: 2px solid var(--accent); border-radius: 4px; }
/* The open list is drawn by the browser on its own surface; give options explicit theme colors
   so dark mode doesn't put light text on a white list. */
.picker select option { background-color: var(--card); color: var(--ink); }
.picker select option:checked { background-color: var(--chip); }
.conn-btn {
  flex: none; display: inline-flex; align-items: center; gap: 8px; white-space: nowrap; cursor: pointer;
  border: 1px solid var(--line); background: var(--card); color: var(--ink); font: inherit; font-weight: 500;
  padding: 7px 14px; border-radius: 999px;
}
.conn-btn:hover { border-color: var(--ink-3); }
.conn-btn.off { background: var(--primary-bg); color: var(--primary-ink); border-color: var(--primary-bg); }
.conn-btn .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--err); }
.conn-btn .dot.ok { background: var(--ok); }

/* ---------- stage ---------- */
.stage { position: relative; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr); min-height: 0; }
.orb-wrap { position: relative; display: grid; place-items: center; min-height: 0; }
#orb { width: min(36vw, 52vh); aspect-ratio: 1; transition: transform .08s linear; }
#orb.no-webgl { border-radius: 50%; background: radial-gradient(circle at 35% 35%, var(--c3), var(--c2) 45%, var(--c1)); }
.orb-caption { position: absolute; bottom: 4%; color: var(--ink-3); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; }

.wheel { position: relative; overflow: hidden; outline: none; touch-action: none; cursor: grab; user-select: none; }
.wheel:active { cursor: grabbing; }
.wheel-items { position: absolute; inset: 0; }
.wheel-item {
  position: absolute; left: 0; top: 0; transform-origin: 0 50%; white-space: nowrap;
  font-size: 30px; letter-spacing: -.01em; color: var(--ink-2); cursor: pointer; will-change: transform, opacity;
}
.wheel-item:hover { color: var(--ink); }
.active-row {
  position: absolute; left: 0; top: 50%; transform: translateY(-50%);
  right: 24px; display: flex; align-items: flex-start; gap: 14px; font-size: 30px; letter-spacing: -.01em; pointer-events: none;
}
.active-row > * { pointer-events: auto; }
.tag { color: var(--accent); white-space: nowrap; transition: color .6s; cursor: pointer; line-height: 1.3; }
.chev { position: absolute; font-size: 16px; color: var(--ink-3); cursor: pointer; line-height: 1; }
.chev.up { top: -22px; } .chev.down { bottom: -22px; }
.line-wrap { position: relative; flex: 1 1 auto; min-width: 0; max-width: 560px; }
#line, .line-overlay {
  font: inherit; letter-spacing: inherit; line-height: 1.3; padding: 0; margin: 0; border: 0;
  width: 100%; white-space: pre-wrap; word-wrap: break-word;
}
#line { display: block; resize: none; background: transparent; color: var(--ink); outline: none; overflow: hidden; caret-color: var(--accent); }
#line::placeholder { color: var(--ink-3); }
.line-overlay { position: absolute; inset: 0; pointer-events: none; display: none; color: var(--ink-3); }
.line-wrap.playing #line { color: transparent; }
.line-wrap.playing .line-overlay { display: block; }
.line-overlay .w.on { color: var(--ink); transition: color .15s; }
.line-overlay .para-tag { color: var(--accent); opacity: .8; }

/* ---------- bottom ---------- */
.bottom { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; padding: 0 30px 26px; z-index: 2; }
.copy h1 { font-size: 20px; font-weight: 500; margin: 0; letter-spacing: -.01em; }
.copy h2 { font-size: 20px; font-weight: 400; margin: 0 0 10px; color: var(--ink-3); letter-spacing: -.01em; }
.copy p { margin: 0 0 16px; color: var(--ink-2); font-size: 12.5px; max-width: 380px; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; }
.btn {
  border: 1px solid var(--line); background: var(--card); color: var(--ink); font: inherit; font-weight: 500;
  padding: 8px 16px; border-radius: 999px; cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; gap: 6px;
  box-shadow: 0 1px 2px rgba(0,0,0,.05);
}
.btn:hover { border-color: var(--ink-3); }
.btn.primary { background: var(--primary-bg); color: var(--primary-ink); border-color: var(--primary-bg); }
.btn.ghost { box-shadow: none; }
.btn.small { padding: 4px 10px; font-size: 12px; }
.btn:disabled { opacity: .5; cursor: progress; }
.btn.active { background: var(--chip); border-color: var(--ink-3); }

.tools { display: flex; flex-direction: column; align-items: flex-end; gap: 10px; font-size: 12.5px; color: var(--ink-2); max-width: 46%; }
.tools-label { color: var(--ink-3); margin-right: 8px; }
.para { display: flex; align-items: center; flex-wrap: wrap; justify-content: flex-end; }
.chips { display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end; }
.chip { border: 1px solid var(--line); background: var(--chip); color: var(--ink-2); border-radius: 999px; padding: 3px 10px; cursor: pointer; font: inherit; font-size: 12px; }
.chip:hover { color: var(--ink); border-color: var(--ink-3); }
.temp { display: flex; align-items: center; gap: 8px; }
.temp input { width: 140px; accent-color: var(--accent); }
.toggle { display: flex; gap: 6px; align-items: center; cursor: pointer; }
.toggle input { accent-color: var(--accent); }
.hint { color: var(--ink-3); text-align: right; max-width: 420px; min-height: 1em; }

/* ---------- SSML panel ---------- */
.ssml-panel {
  position: absolute; right: 24px; bottom: 120px; width: min(520px, calc(100% - 48px)); max-height: 46%;
  background: var(--card); border: 1px solid var(--line); border-radius: 12px; box-shadow: var(--shadow);
  display: flex; flex-direction: column; z-index: 5;
}
.ssml-head { display: flex; justify-content: space-between; align-items: center; padding: 10px 12px; border-bottom: 1px solid var(--line); }
.ssml-head span { display: flex; gap: 6px; }
.ssml-panel pre { margin: 0; padding: 12px 14px; overflow: auto; font: 12px/1.5 ui-monospace, SFMono-Regular, Menlo, monospace; color: var(--ink-2); white-space: pre-wrap; }

/* ---------- dialog ---------- */
dialog {
  border: 1px solid var(--line); border-radius: 16px; padding: 0; background: var(--card); color: var(--ink);
  box-shadow: var(--shadow); width: min(480px, calc(100% - 32px)); max-height: calc(100dvh - 32px); overflow: auto;
}
dialog::backdrop { background: rgba(0,0,0,.35); backdrop-filter: blur(4px); }
dialog[open] { animation: dlg-in .22s ease-out; }
@keyframes dlg-in { from { opacity: 0; transform: translateY(8px) scale(.98); } }
@media (prefers-reduced-motion: reduce) { dialog[open] { animation: none; } }

.settings { display: flex; flex-direction: column; gap: 18px; padding: 26px 26px 0; }
.dlg-head { display: flex; flex-direction: column; gap: 6px; }
.eyebrow { margin: 0; font-size: 11.5px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--c2); }
.settings h3 { margin: 0; font-size: 19px; font-weight: 600; letter-spacing: -.01em; text-wrap: balance; }
.dlg-head .muted { font-size: 13.5px; }
.fields { display: flex; flex-direction: column; gap: 14px; }
.settings label { display: flex; flex-direction: column; gap: 6px; font-weight: 500; font-size: 13px; }
.settings input:not([type="checkbox"]) {
  font: inherit; font-size: 14px; padding: 10px 12px; border-radius: 10px; border: 1px solid var(--line);
  background: var(--chip); color: var(--ink); width: 100%;
}
.settings input:not([type="checkbox"]):focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; border-color: transparent; }
.settings label.check { flex-direction: row; align-items: center; gap: 8px; font-weight: 400; color: var(--ink-2); }
.settings label.check input { accent-color: var(--accent); margin: 0; }
.key-field { display: flex; gap: 8px; align-items: center; }
.key-field input { flex: 1; min-width: 0; }
.key-field input:not(:placeholder-shown) { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; }
.saved { display: flex; align-items: center; justify-content: space-between; gap: 10px; font-size: 12.5px; color: var(--ink-2); margin-top: -6px; }
.link-btn { border: 0; background: none; padding: 0; font: inherit; color: var(--err); cursor: pointer; text-decoration: underline; text-underline-offset: 2px; }

.help { font-size: 13px; color: var(--ink-2); }
.help summary { cursor: pointer; color: var(--ink); font-weight: 500; width: fit-content; }
.help ol { margin: 10px 0 8px; padding-left: 20px; display: flex; flex-direction: column; gap: 6px; }
.help a { color: var(--ink); text-underline-offset: 2px; }
.fineprint { margin: 0; font-size: 12px; line-height: 1.5; color: var(--ink-3); }

.status { font-size: 13px; padding: 10px 12px; border-radius: 10px; background: var(--chip); color: var(--ink-2); }
.status.ok { color: var(--ok); } .status.err { color: var(--err); }

.dlg-foot {
  position: sticky; bottom: 0; display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap;
  margin: 0 -26px; padding: 14px 26px; border-top: 1px solid var(--line); background: var(--card);
}
.dlg-actions { display: flex; gap: 8px; margin-left: auto; }
@media (max-width: 440px) {
  .settings { padding: 22px 20px 0; gap: 16px; }
  .dlg-foot { margin: 0 -20px; padding: 12px 20px; gap: 8px; }
  .dlg-foot .btn { padding: 8px 12px; }
}
.muted { color: var(--ink-2); margin: 0; }
.small { font-size: 12px; }
code { font: 11.5px ui-monospace, Menlo, monospace; background: var(--chip); padding: 1px 4px; border-radius: 4px; }

.toast {
  position: fixed; left: 50%; bottom: 34px; transform: translate(-50%, 20px); opacity: 0; pointer-events: none;
  background: var(--primary-bg); color: var(--primary-ink); padding: 10px 16px; border-radius: 10px; font-size: 13px;
  max-width: min(560px, calc(100% - 32px)); transition: all .25s; z-index: 10;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  body { overflow: auto; }
  .card { margin: 10px; height: auto; min-height: calc(100dvh - 20px); }
  .top { flex-wrap: wrap; padding: 14px 16px; }
  .picker { order: 3; width: 100%; flex-wrap: wrap; border-radius: 14px; }
  .picker label { flex: 1 1 140px; }
  .picker select { max-width: 100%; width: 100%; }
  .conn-btn { margin-left: auto; }
  .stage { grid-template-columns: 1fr; grid-template-rows: 270px 420px; }
  #orb { width: 220px; }
  .wheel-item, .active-row { font-size: 24px; }
  .bottom { flex-direction: column; align-items: stretch; padding: 0 16px 18px; }
  .tools { max-width: 100%; align-items: flex-start; }
  .para, .chips { justify-content: flex-start; }
  .hint { text-align: left; }
}