:root {
  --bg: #f6f6f8;
  --card: #ffffff;
  --text: #16161d;
  --muted: #6b6b78;
  --border: #e4e4ea;
  --field: #f9f9fb;
  --accent: #6a4cff;
  --accent-text: #ffffff;
  --accent-soft: #efebff;
  --danger: #d13b3b;
  --danger-soft: #fdeeee;
  --ok: #1f9d6b;
  --shadow: 0 1px 2px rgb(16 16 30 / 4%), 0 8px 24px rgb(16 16 30 / 6%);
  --radius: 14px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e0e12;
    --card: #17171d;
    --text: #ececf2;
    --muted: #9b9ba8;
    --border: #2a2a33;
    --field: #1d1d24;
    --accent: #8b72ff;
    --accent-soft: #241e3d;
    --danger: #ff6b6b;
    --danger-soft: #3a1d1f;
    --ok: #3fcf95;
    --shadow: 0 1px 2px rgb(0 0 0 / 30%), 0 8px 24px rgb(0 0 0 / 25%);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

button, input, select, textarea { font: inherit; color: inherit; }

/* ---------- layout ---------- */

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1180px;
  margin: 0 auto;
  padding: 18px 16px;
}

.brand { display: flex; align-items: center; gap: 10px; font-weight: 650; font-size: 18px; letter-spacing: -0.01em; }
.brand-mark { width: 30px; height: 30px; }

.layout {
  display: grid;
  gap: 20px;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 16px 48px;
}

@media (min-width: 980px) {
  .layout { grid-template-columns: 430px 1fr; align-items: start; }
  .layout > .card:first-child { position: sticky; top: 16px; }
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  min-width: 0;
}

h2 { margin: 0 0 14px; font-size: 17px; letter-spacing: -0.01em; }

/* ---------- form ---------- */

.field { display: grid; gap: 6px; margin-bottom: 14px; }
.field > span, .label { font-size: 13px; font-weight: 600; color: var(--muted); }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

input[type="text"], input[type="number"], input[type="password"], select, textarea {
  width: 100%;
  background: var(--field);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 9px 11px;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}
textarea { resize: vertical; min-height: 76px; }
input:focus, select:focus, textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }

.dropzone {
  display: grid;
  place-items: center;
  gap: 4px;
  text-align: center;
  padding: 22px 14px;
  margin-bottom: 10px;
  border: 1.5px dashed var(--border);
  border-radius: 12px;
  background: var(--field);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.dropzone:hover, .dropzone.over { border-color: var(--accent); background: var(--accent-soft); }
.dropzone strong { font-weight: 600; }
.dropzone small { color: var(--muted); }
.dropzone svg { width: 26px; height: 26px; color: var(--accent); }

.files { list-style: none; padding: 0; margin: 0 0 14px; display: grid; gap: 6px; }
.files li {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 8px 7px 11px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 14px;
}
.files li .name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.files li .size { color: var(--muted); font-size: 12px; }

.segmented { display: grid; grid-auto-flow: column; grid-auto-columns: 1fr; background: var(--field); border: 1px solid var(--border); border-radius: 10px; padding: 3px; }
.segmented button {
  border: 0;
  background: none;
  border-radius: 8px;
  padding: 7px 6px;
  cursor: pointer;
  color: var(--muted);
  font-size: 14px;
}
.segmented button small { display: block; font-size: 11px; opacity: 0.75; font-weight: 400; }
.segmented button.active { background: var(--card); color: var(--text); font-weight: 600; box-shadow: 0 1px 3px rgb(0 0 0 / 12%); }

.voice { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 8px; margin-bottom: 8px; }
.voice .label { margin: 0; min-width: 34px; }
.voice select { min-width: 0; }

details.advanced { border-top: 1px solid var(--border); margin: 6px 0 16px; padding-top: 12px; }
details.advanced summary {
  cursor: pointer;
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 6px;
}
details.advanced summary::-webkit-details-marker { display: none; }
details.advanced summary::before { content: "›"; display: inline-block; transition: transform 0.15s; font-size: 18px; line-height: 1; }
details.advanced[open] summary::before { transform: rotate(90deg); }
details.advanced .inner { padding-top: 14px; }

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 10px;
  padding: 7px 12px;
  cursor: pointer;
  font-size: 14px;
  color: inherit;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.15s, border-color 0.15s, opacity 0.15s;
}
.btn:hover { border-color: var(--muted); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn.primary { width: 100%; background: var(--accent); border-color: var(--accent); color: var(--accent-text); font-weight: 600; padding: 11px; font-size: 15px; }
.btn.primary:hover:not(:disabled) { filter: brightness(1.08); }
.btn.ghost { border-color: transparent; background: none; color: var(--muted); }
.btn.ghost:hover { color: var(--text); background: var(--field); }
.btn.danger:hover { color: var(--danger); border-color: var(--danger); }
.btn.icon { padding: 6px; width: 34px; height: 34px; }
.btn svg { width: 16px; height: 16px; flex: none; }
.btn.link { border: 0; background: none; padding: 0; color: var(--accent); font-size: 13px; }

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

.history-head { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; }
.empty { color: var(--muted); text-align: center; padding: 40px 10px; }
.jobs { display: grid; gap: 12px; }

.job { border: 1px solid var(--border); border-radius: 12px; padding: 14px; }
.job-title { font-weight: 620; margin: 0 0 2px; overflow-wrap: anywhere; }
.job-meta { color: var(--muted); font-size: 13px; display: flex; flex-wrap: wrap; gap: 4px 10px; }
.job-status { margin-top: 10px; font-size: 13px; color: var(--muted); }
.job-status.err { color: var(--danger); background: var(--danger-soft); padding: 8px 10px; border-radius: 8px; overflow-wrap: anywhere; }
.bar { height: 6px; border-radius: 99px; background: var(--field); border: 1px solid var(--border); overflow: hidden; margin-top: 6px; }
.bar > div { height: 100%; background: var(--accent); border-radius: 99px; transition: width 0.4s; }
.job audio { width: 100%; margin-top: 12px; height: 40px; }
.job-actions { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.job-actions .spacer { flex: 1; }

.transcript { margin-top: 12px; border-top: 1px solid var(--border); padding-top: 10px; max-height: 420px; overflow: auto; font-size: 14px; }
.transcript p { margin: 0 0 8px; }
.transcript b { color: var(--accent); font-weight: 600; }

.toast {
  position: fixed;
  left: 50%;
  bottom: 20px;
  transform: translateX(-50%);
  max-width: calc(100% - 32px);
  background: var(--text);
  color: var(--bg);
  padding: 10px 16px;
  border-radius: 10px;
  font-size: 14px;
  box-shadow: var(--shadow);
  z-index: 10;
}

.spin { animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

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

.login { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login .card { width: 100%; max-width: 360px; text-align: center; }
.login .brand { justify-content: center; margin-bottom: 18px; }
.login form { display: grid; gap: 12px; }
.login .error { color: var(--danger); font-size: 14px; min-height: 1.5em; margin: 0; }

@media (max-width: 560px) {
  .row { grid-template-columns: 1fr; }
  .card { padding: 16px; }
}