:root {
  --bg: #0b0f1a;
  --bg-soft: #121829;
  --card: #161d33;
  --card-hover: #1c2540;
  --line: #26304d;
  --text: #e8ecf7;
  --muted: #93a0bf;
  --accent: #7c8cff;
  --accent-2: #b06bff;
  --good: #34d399;
  --bad: #fb7185;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(0, 0, 0, .35);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background:
    radial-gradient(1200px 600px at 15% -10%, #1d2547 0%, transparent 60%),
    radial-gradient(900px 500px at 100% 0%, #2a1b45 0%, transparent 55%),
    var(--bg);
  color: var(--text);
  font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  min-height: 100vh;
}

/* ── top bar ───────────────────────────────────────────────── */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; flex-wrap: wrap;
  max-width: 940px; margin: 0 auto; padding: 28px 20px 8px;
}
.brand { display: flex; align-items: center; gap: 14px; }
.brand-mark {
  font-size: 30px; line-height: 1;
  width: 52px; height: 52px; display: grid; place-items: center;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: var(--shadow);
}
.brand h1 { margin: 0; font-size: 22px; letter-spacing: -.02em; }
.tagline { margin: 2px 0 0; color: var(--muted); font-size: 13.5px; }

.status {
  display: flex; align-items: center; gap: 8px;
  background: var(--card); border: 1px solid var(--line);
  padding: 7px 13px; border-radius: 999px; font-size: 13px; color: var(--muted);
}
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); flex: none; }
.dot.ok { background: var(--good); box-shadow: 0 0 0 3px rgba(52, 211, 153, .18); }
.dot.err { background: var(--bad); box-shadow: 0 0 0 3px rgba(251, 113, 133, .18); }

/* ── layout ────────────────────────────────────────────────── */
main { max-width: 940px; margin: 0 auto; padding: 12px 20px 40px; }

.step {
  background: linear-gradient(180deg, rgba(255,255,255,.035), rgba(255,255,255,0));
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 22px;
  margin: 18px 0;
  box-shadow: var(--shadow);
}
.step-head { display: flex; gap: 14px; align-items: flex-start; margin-bottom: 18px; }
.step-num {
  flex: none; width: 30px; height: 30px; border-radius: 50%;
  display: grid; place-items: center; font-weight: 700; font-size: 14px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff;
}
.step h2 { margin: 2px 0 0; font-size: 17px; letter-spacing: -.01em; }
.hint { margin: 4px 0 0; color: var(--muted); font-size: 13.5px; }

/* ── avatars ───────────────────────────────────────────────── */
.avatar-grid {
  display: grid; gap: 12px;
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
}
.avatar-card {
  position: relative; text-align: left; cursor: pointer;
  background: var(--card); border: 1.5px solid var(--line);
  border-radius: var(--radius); padding: 14px;
  display: flex; gap: 12px; align-items: center;
  transition: border-color .15s, background .15s, transform .12s;
  color: inherit; font: inherit;
}
.avatar-card:hover { background: var(--card-hover); transform: translateY(-1px); }
.avatar-card:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.avatar-card.is-selected {
  border-color: var(--accent);
  background: linear-gradient(135deg, rgba(124,140,255,.16), rgba(176,107,255,.10));
}
.avatar-card.is-selected::after {
  content: "✓"; position: absolute; top: 9px; right: 11px;
  color: var(--accent); font-weight: 700; font-size: 14px;
}
.avatar-card img { width: 46px; height: 46px; border-radius: 50%; flex: none; display: block; }
.ac-body { min-width: 0; flex: 1; }
.ac-name { font-weight: 600; font-size: 14.5px; }
.ac-sub { color: var(--muted); font-size: 12px; margin-top: 1px; }
.ac-preview {
  margin-top: 6px; font-size: 11.5px; color: var(--accent);
  background: none; border: 0; padding: 0; cursor: pointer; font-family: inherit;
}
.ac-preview:hover { text-decoration: underline; }
.empty { color: var(--muted); font-size: 14px; padding: 10px 2px; grid-column: 1 / -1; }

/* ── tabs & panels ─────────────────────────────────────────── */
.tabs { display: flex; gap: 8px; margin-bottom: 16px; }
.tab {
  background: var(--card); color: var(--muted);
  border: 1.5px solid var(--line); border-radius: 10px;
  padding: 8px 16px; font: inherit; font-size: 14px; cursor: pointer;
  transition: all .15s;
}
.tab:hover { color: var(--text); }
.tab.is-active { color: var(--text); border-color: var(--accent); background: var(--card-hover); }

.panel { animation: fade .2s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(3px); } to { opacity: 1; } }
.is-hidden { display: none !important; }

/* ── recorder ──────────────────────────────────────────────── */
.recorder { display: flex; align-items: center; gap: 20px; padding: 8px 0; }
.rec-btn {
  flex: none; width: 72px; height: 72px; border-radius: 50%;
  border: 2px solid var(--line); background: var(--card);
  cursor: pointer; display: grid; place-items: center;
  transition: all .18s;
}
.rec-btn:hover { border-color: var(--accent); }
.rec-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.rec-icon {
  width: 26px; height: 26px; border-radius: 50%;
  background: var(--bad); transition: all .18s;
}
.rec-btn.is-recording { border-color: var(--bad); animation: pulse 1.6s infinite; }
.rec-btn.is-recording .rec-icon { border-radius: 5px; width: 22px; height: 22px; }
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(251, 113, 133, .32); }
  50% { box-shadow: 0 0 0 12px rgba(251, 113, 133, 0); }
}
.rec-meta { flex: 1; min-width: 0; }
.rec-time { font-size: 26px; font-weight: 600; font-variant-numeric: tabular-nums; letter-spacing: -.02em; }
.meter { height: 6px; background: var(--bg-soft); border-radius: 999px; overflow: hidden; margin: 8px 0 6px; }
.meter-fill {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--good), var(--accent));
  transition: width .07s linear;
}
.rec-hint { margin: 0; color: var(--muted); font-size: 13px; }

/* ── dropzone ──────────────────────────────────────────────── */
.dropzone {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 5px; padding: 34px 20px; cursor: pointer; text-align: center;
  border: 2px dashed var(--line); border-radius: var(--radius);
  background: rgba(255,255,255,.02); transition: all .15s;
}
.dropzone:hover, .dropzone.is-over { border-color: var(--accent); background: rgba(124,140,255,.07); }
.dropzone:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.dz-icon { font-size: 26px; }
.dz-title { font-size: 14.5px; font-weight: 500; }
.dz-sub { color: var(--muted); font-size: 12.5px; }

/* ── source preview ────────────────────────────────────────── */
.source-preview {
  margin-top: 16px; padding: 14px; border-radius: var(--radius);
  background: var(--card); border: 1px solid var(--line);
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
}
.sp-info { flex: 1; min-width: 160px; }
.sp-name { font-size: 14px; font-weight: 500; word-break: break-all; display: block; }
.sp-meta { color: var(--muted); font-size: 12.5px; }
.source-preview audio, .result audio { height: 38px; max-width: 100%; }

/* ── convert / progress ────────────────────────────────────── */
.convert-btn {
  width: 100%; padding: 15px; font: inherit; font-size: 15.5px; font-weight: 600;
  color: #fff; border: 0; border-radius: 12px; cursor: pointer;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 8px 20px rgba(124, 140, 255, .22);
  transition: opacity .15s, transform .12s;
}
.convert-btn:hover:not(:disabled) { transform: translateY(-1px); }
.convert-btn:disabled { opacity: .4; cursor: not-allowed; box-shadow: none; }

.progress-wrap { margin-top: 16px; }
.progress-bar { height: 8px; background: var(--bg-soft); border-radius: 999px; overflow: hidden; }
.progress-fill {
  height: 100%; width: 0%; border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width .35s ease;
}
.progress-label { margin: 8px 0 0; color: var(--muted); font-size: 13px; text-align: center; }

.alert {
  margin-top: 16px; padding: 12px 14px; border-radius: 10px; font-size: 13.5px;
  background: rgba(251, 113, 133, .11); border: 1px solid rgba(251, 113, 133, .35);
  color: #ffc9d1;
}

/* ── result ────────────────────────────────────────────────── */
.result {
  margin-top: 18px; padding: 18px; border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(52,211,153,.09), rgba(124,140,255,.07));
  border: 1px solid rgba(52, 211, 153, .28);
}
.result-head { display: flex; gap: 13px; align-items: center; margin-bottom: 14px; }
.result-avatar { border-radius: 50%; flex: none; }
.result h3 { margin: 0; font-size: 15.5px; }
.result-meta { margin: 2px 0 0; color: var(--muted); font-size: 12.5px; }
.result audio { width: 100%; }
.result-actions { display: flex; gap: 14px; align-items: center; margin-top: 14px; flex-wrap: wrap; }
.download-btn {
  text-decoration: none; font-size: 14px; font-weight: 600; color: #06281d;
  background: var(--good); padding: 10px 18px; border-radius: 10px;
  transition: transform .12s;
}
.download-btn:hover { transform: translateY(-1px); }
.link-btn {
  background: none; border: 0; color: var(--muted); font: inherit; font-size: 13.5px;
  cursor: pointer; padding: 0; text-decoration: underline;
}
.link-btn:hover { color: var(--text); }

footer {
  max-width: 940px; margin: 0 auto; padding: 0 20px 40px;
  color: var(--muted); font-size: 12.5px; text-align: center;
}
footer a { color: var(--accent); }

/* ── sign in / sign up ─────────────────────────────────────── */
.login-wrap { display: grid; place-items: center; min-height: 100vh; padding: 20px; }
.login-card {
  width: 100%; max-width: 400px; text-align: center;
  background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,0));
  border: 1px solid var(--line); border-radius: 18px;
  padding: 32px 28px; box-shadow: var(--shadow);
}
.login-card .brand-mark { margin: 0 auto 16px; }
.login-card h1 { margin: 0 0 4px; font-size: 20px; }
.login-card .hint { margin-bottom: 20px; }
.login-card .field { text-align: left; }
.auth-tabs { justify-content: center; margin-bottom: 20px; }

.field { display: block; margin-bottom: 16px; }
.field > span {
  display: block; font-size: 12.5px; font-weight: 600;
  color: var(--muted); margin-bottom: 6px;
}
.field > span em { font-weight: 400; font-style: normal; opacity: .72; }
.field input[type="text"], .field input[type="email"], .field input[type="password"] {
  width: 100%; padding: 10px 12px; font: inherit; font-size: 14px;
  color: var(--text); background: var(--bg-soft);
  border: 1.5px solid var(--line); border-radius: 10px; transition: border-color .15s;
}
.field input:focus { outline: none; border-color: var(--accent); }

/* ── signed-in header ──────────────────────────────────────── */
.topbar-actions { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.user-chip {
  display: flex; align-items: center; gap: 10px;
  background: var(--card); border: 1px solid var(--line);
  padding: 6px 13px; border-radius: 999px; font-size: 13px;
}
.user-email { color: var(--text); max-width: 200px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ── history ───────────────────────────────────────────────── */
.count-pill {
  display: inline-block; margin-left: 6px; padding: 1px 9px;
  font-size: 12px; font-weight: 600; border-radius: 999px;
  background: var(--card); border: 1px solid var(--line); color: var(--muted);
  vertical-align: middle;
}

.conversion {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 15px; margin-bottom: 11px;
  transition: border-color .2s;
}
.conversion:hover { border-color: #33406a; }
.conversion.is-failed { border-color: rgba(251,113,133,.32); }
.conversion.is-new {
  border-color: var(--good);
  animation: landed 2.4s ease;
}
@keyframes landed {
  0% { box-shadow: 0 0 0 0 rgba(52,211,153,.4); }
  100% { box-shadow: 0 0 0 14px rgba(52,211,153,0); }
}

/* source → avatar → result */
.cv-flow {
  display: grid; align-items: center; gap: 14px;
  grid-template-columns: 1fr auto auto auto 1fr;
}
.cv-side { min-width: 0; }
.cv-label {
  font-size: 10.5px; font-weight: 700; letter-spacing: .07em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 3px;
}
.cv-name {
  font-size: 13.5px; font-weight: 600; word-break: break-all;
  overflow: hidden; text-overflow: ellipsis;
}
.cv-meta { color: var(--muted); font-size: 11.5px; margin-top: 1px; }
.cv-audio { width: 100%; height: 34px; margin-top: 8px; max-width: 320px; }

.cv-arrow { color: var(--accent); font-size: 19px; opacity: .75; }

.cv-avatar { text-align: center; min-width: 84px; }
.cv-avatar img { width: 40px; height: 40px; border-radius: 50%; display: block; margin: 0 auto 5px; }
.avatar-gone {
  display: grid; place-items: center; width: 40px; height: 40px; margin: 0 auto 5px;
  border-radius: 50%; background: var(--bg-soft); border: 1px dashed var(--line); font-size: 16px;
}
.cv-avatar-name { font-size: 13px; font-weight: 600; }

.cv-failed-note {
  margin-top: 7px; font-size: 12px; color: #ffc9d1;
  background: rgba(251,113,133,.1); border: 1px solid rgba(251,113,133,.28);
  border-radius: 8px; padding: 7px 9px;
}

.cv-footer {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; flex-wrap: wrap;
  margin-top: 13px; padding-top: 11px; border-top: 1px solid var(--line);
}
.cv-when { color: var(--muted); font-size: 12px; }
.cv-actions { display: flex; gap: 8px; align-items: center; }

.btn-sm {
  font: inherit; font-size: 12.5px; padding: 6px 12px; cursor: pointer;
  text-decoration: none; display: inline-block;
  color: var(--text); background: var(--bg-soft);
  border: 1px solid var(--line); border-radius: 8px; transition: all .14s;
}
.btn-sm:hover { border-color: var(--accent); }
.btn-sm.danger { color: #ffc9d1; }
.btn-sm.danger:hover { border-color: var(--bad); background: rgba(251,113,133,.12); }
.btn-sm.confirm { color: #2b0710; background: var(--bad); border-color: var(--bad); font-weight: 600; }

@media (max-width: 720px) {
  /* Stack the flow vertically and turn the arrows downward. */
  .cv-flow { grid-template-columns: 1fr; gap: 10px; text-align: left; }
  .cv-arrow { transform: rotate(90deg); justify-self: center; }
  .cv-avatar { display: flex; align-items: center; gap: 10px; text-align: left; }
  .cv-avatar img, .avatar-gone { margin: 0; }
  .cv-audio { max-width: 100%; }
}

@media (max-width: 560px) {
  .recorder { flex-direction: column; align-items: stretch; text-align: center; }
  .rec-btn { margin: 0 auto; }
  .topbar { padding-top: 20px; }
}