:root {
  --bg: #0f1117;
  --surface: #171a23;
  --surface-2: #1e222d;
  --border: #2a2f3d;
  --text: #e6e8ee;
  --muted: #8b93a7;
  --accent: #6c8cff;
  --ok: #34d399;
  --warn: #fbbf24;
  --err: #f87171;
  --radius: 10px;
}

* { box-sizing: border-box; }

/* Author-level `display` beats the UA stylesheet's `[hidden] { display: none }`,
   so any element given an explicit display would ignore the hidden attribute. */
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

h1, h2 { margin: 0 0 8px; font-weight: 600; }
h1 { font-size: 18px; }
h2 { font-size: 15px; }

.muted { color: var(--muted); }
.grow { flex: 1; min-width: 220px; }
.error { color: var(--err); }

/* ---------- login ---------- */

.login-gate {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background: var(--bg);
  z-index: 50;
}


.login-card {
  width: min(340px, 90vw);
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

/* ---------- chrome ---------- */

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
}

.topbar-right { display: flex; align-items: center; gap: 10px; }

.badge {
  font-size: 11px;
  padding: 2px 8px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
}

.tabs {
  display: flex;
  gap: 4px;
  padding: 10px 16px 0;
  overflow-x: auto;
  border-bottom: 1px solid var(--border);
}

.tab {
  padding: 8px 14px;
  border: 0;
  border-bottom: 2px solid transparent;
  background: none;
  color: var(--muted);
  font: inherit;
  white-space: nowrap;
  cursor: pointer;
}

.tab:hover { color: var(--text); }
.tab.active { color: var(--text); border-bottom-color: var(--accent); }

/* ---------- panels ---------- */

main { padding: 18px 20px 40px; }

.panel { display: none; flex-direction: column; gap: 12px; max-width: 980px; }
.panel.active { display: flex; }

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: flex-end;
}

label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 12px;
  color: var(--muted);
}

label.inline { flex-direction: row; align-items: center; gap: 6px; }

input, select, textarea {
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-2);
  color: var(--text);
  font: inherit;
}

textarea { resize: vertical; font-family: inherit; }
input:focus, select:focus, textarea:focus { outline: 1px solid var(--accent); }

button {
  padding: 7px 16px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: var(--accent);
  color: #0b1020;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

button:disabled { opacity: .45; cursor: not-allowed; }
button.ghost { background: var(--surface-2); color: var(--text); border-color: var(--border); font-weight: 400; }

.status { font-size: 12px; color: var(--muted); padding-bottom: 8px; }
.status[data-state="connected"] { color: var(--ok); }
.status[data-state="reconnecting"],
.status[data-state="connecting"] { color: var(--warn); }
.status[data-state="error"] { color: var(--err); }

.latency { font-size: 12px; font-variant-numeric: tabular-nums; }

/* ---------- transcript ---------- */

.transcript {
  min-height: 260px;
  max-height: 56vh;
  overflow-y: auto;
  padding: 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.msg {
  padding: 8px 12px;
  border-radius: 10px;
  max-width: 78%;
  white-space: pre-wrap;
  word-break: break-word;
  animation: fade 0.15s ease-out;
}

@keyframes fade { from { opacity: 0; transform: translateY(3px); } }

.msg.user { align-self: flex-start; background: var(--surface-2); }
.msg.assistant { align-self: flex-end; background: #24304d; }
.msg.system { align-self: center; color: var(--muted); font-size: 12px; background: none; }
.msg.error { align-self: center; color: var(--err); background: #3a1f22; }
.msg.reasoning { align-self: flex-start; color: #c4b5fd; background: #2a2440; font-size: 13px; }

/* ---------- chat input ---------- */

.chat-input { display: flex; gap: 8px; }
.chat-input input { flex: 1; }

/* ---------- level meter ---------- */

.level {
  height: 6px;
  background: var(--surface-2);
  border-radius: 999px;
  overflow: hidden;
  margin: 8px 0;
}

.level-fill {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--ok), var(--warn));
  transition: width .08s linear;
}

/* ---------- voice cloning ---------- */

.clone-columns { display: flex; flex-wrap: wrap; gap: 12px; }

.clone-card {
  flex: 1;
  min-width: 260px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.voice-list { display: flex; flex-direction: column; gap: 6px; }

.voice-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.voice-id { flex: 1; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; }

@media (max-width: 640px) {
  main { padding: 14px; }
  .msg { max-width: 92%; }
}
/* ---------- voice cloning rows ---------- */

button.danger { color: var(--err); }
button.danger:hover:not(:disabled) { background: #3a1f22; }

.voice-row { gap: 8px; }

.voice-tag {
  display: inline-block;
  margin-left: 8px;
  padding: 1px 7px;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 11px;
  color: var(--muted);
  font-family: -apple-system, BlinkMacSystemFont, sans-serif;
}

.voice-row .voice-id { min-width: 0; overflow-wrap: anywhere; }

/* ---------- tts workbench ---------- */

label.slider { min-width: 150px; }
label.slider output {
  float: right;
  font-variant-numeric: tabular-nums;
  color: var(--text);
}
label.slider input[type="range"] { width: 100%; accent-color: var(--accent); }

.seg-list { display: flex; flex-direction: column; gap: 6px; }

.seg {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.seg-index {
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--surface-2);
  color: var(--muted);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
}

.seg-text {
  flex: 1;
  min-width: 0;
  overflow-wrap: anywhere;
}

.seg.done .seg-index { background: #1d3b30; color: var(--ok); }
.seg.busy .seg-index { background: #3a3320; color: var(--warn); }
.seg.error .seg-index { background: #3a1f22; color: var(--err); }
.seg.error .seg-text { color: var(--err); }

.seg-actions { display: flex; gap: 6px; flex: 0 0 auto; }
.seg-actions button { padding: 5px 12px; font-size: 13px; }

.seg-duration { font-size: 12px; color: var(--muted); font-variant-numeric: tabular-nums; }

/* ---------- tts history ---------- */

.list-title { margin-top: 6px; font-size: 15px; }
.list-title .muted { font-size: 12px; font-weight: 400; }

.history { display: flex; flex-direction: column; gap: 10px; }

.hcard {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.hcard.busy { border-color: var(--warn); }

.hhead {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 13px;
}

.hmeta { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 3px; }

.htitle {
  font-size: 14px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.hsub { font-size: 12px; color: var(--muted); }
.hsub .hvoice { color: var(--accent); }

.htags { display: flex; gap: 6px; align-items: center; flex: 0 0 auto; }
.hbadge {
  padding: 2px 8px;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 11px;
  color: var(--muted);
}
.hbadge.ok { border-color: #1d3b30; color: var(--ok); }
.hbadge.warn { border-color: #3a3320; color: var(--warn); }
.hbadge.err { border-color: #3a1f22; color: var(--err); }

.hactions { display: flex; gap: 6px; flex: 0 0 auto; flex-wrap: wrap; }
.hactions button { padding: 5px 12px; font-size: 13px; }

.hbody { border-top: 1px solid var(--border); padding: 9px 13px; display: flex; flex-direction: column; gap: 6px; }

p.hint {
  margin: 0;
  padding: 7px 11px;
  border-left: 2px solid var(--warn);
  background: rgba(251, 191, 36, 0.07);
  color: var(--warn);
  font-size: 12px;
  border-radius: 0 6px 6px 0;
}

/* ---------- mobile ---------- */

@media (max-width: 760px) {
  main { padding: 12px 12px 48px; }
  .topbar { padding: 10px 14px; }
  .tabs { padding: 8px 10px 0; }
  .tab { padding: 8px 11px; font-size: 13px; }

  .controls { gap: 8px; }
  label.slider { min-width: 100%; }
  label.grow, label.slider.grow { min-width: 100%; }
  .controls input[type="text"],
  .controls input[type="number"],
  .controls textarea { width: 100%; }

  /* Buttons that would otherwise wrap 3 + 1 leave an orphan on the last row. */
  .controls.btn-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 7px;
  }
  .controls.btn-row button { padding: 9px 6px; }
  .controls.btn-row .status { grid-column: 1 / -1; padding-bottom: 0; }

  .seg-list, .history { gap: 8px; }

  /* One record becomes a vertical stack. The five actions stay on a single
     row by swapping to short labels, which is what actually saves the space. */
  .hhead {
    flex-wrap: wrap;
    align-items: flex-start;
    gap: 7px;
    padding: 10px 11px;
  }

  .hmeta { flex: 1 1 100%; }
  .htitle {
    font-size: 14px;
    white-space: normal;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .htags { flex: 1 1 auto; flex-wrap: wrap; gap: 5px; }

  .hactions {
    flex: 1 1 100%;
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 5px;
  }

  /* Long labels would wrap inside a 70px cell; show the short form instead. */
  .hactions button,
  .seg-actions button {
    font-size: 0;
    padding: 7px 2px;
    white-space: nowrap;
  }

  .hactions button::after,
  .seg-actions button::after {
    content: attr(data-short);
    font-size: 12.5px;
  }

  .seg {
    flex-wrap: wrap;
    gap: 6px;
    padding: 8px 10px;
  }

  .seg-text { flex: 1 1 0; font-size: 13.5px; order: 1; }
  .seg-index { order: 0; }
  .seg-duration { order: 2; font-size: 11px; }

  .seg-actions {
    order: 3;
    flex: 1 1 100%;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 5px;
  }

  .hbody { padding: 8px 10px 10px; }
  .hbadge { padding: 2px 7px; font-size: 10.5px; }

  .voice-row { flex-wrap: wrap; padding: 9px 10px; }
  .voice-row .voice-id { flex: 1 1 100%; font-size: 12px; }
  .voice-row button { flex: 1 1 0; padding: 7px 4px; font-size: 12.5px; }

  .clone-columns { gap: 10px; }
  .clone-card { min-width: 100%; padding: 12px; }

  .transcript { min-height: 200px; max-height: 40vh; padding: 11px; }
  .msg { max-width: 94%; padding: 7px 10px; }
}

@media (max-width: 340px) {
  .hactions { grid-template-columns: repeat(3, 1fr); }
  .topbar h1 { font-size: 16px; }
}

/* ---------- emotion tags ---------- */

.tag-panel {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 10px 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.tag-row { display: flex; align-items: flex-start; gap: 8px; }

.tag-label {
  flex: 0 0 auto;
  padding-top: 4px;
  font-size: 12px;
  color: var(--muted);
}

.tag-chips { display: flex; flex-wrap: wrap; gap: 5px; flex: 1; }

.tag-chip {
  padding: 3px 9px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface-2);
  color: var(--text);
  font: inherit;
  font-size: 12px;
  cursor: pointer;
  white-space: nowrap;
}

.tag-chip:hover { border-color: var(--accent); color: var(--accent); }
.tag-chip.rich { color: var(--warn); }
.tag-chip.rich:hover { border-color: var(--warn); }

.tag-hint { margin: 2px 0 0; font-size: 11.5px; }

/* ---------- tag help modal ---------- */

.help-btn {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  padding: 0;
  margin-top: 2px;
  border-radius: 50%;
  border: 1px solid var(--accent);
  background: none;
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
}

.help-btn:hover { background: var(--accent); color: #0b1020; }

.modal {
  width: min(720px, 92vw);
  padding: 20px 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
}

.modal::backdrop { background: rgba(0, 0, 0, 0.62); }

.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.modal-head h2 { font-size: 16px; margin: 0; }

.modal p { margin: 0 0 10px; font-size: 13px; }

.prompt-box {
  width: 100%;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12.5px;
  line-height: 1.55;
  background: var(--surface-2);
}

.modal-foot {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 12px;
}

@media (max-width: 760px) {
  .modal { padding: 16px; }
  .prompt-box { font-size: 12px; }
}