:root {
  --bg: #f5f6fb;
  --card: #ffffff;
  --text: #141726;
  --muted: #697089;
  --line: #e4e6ef;
  --brand: #ff3b4d;
  --brand2: #7b5cff;
  --ok: #17a673;
  --shadow: 0 10px 30px rgba(20, 23, 38, 0.08);
  --radius: 16px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d0f17;
    --card: #161a26;
    --text: #eef0f7;
    --muted: #8d94ad;
    --line: #262b3b;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}
a { color: inherit; }
main { max-width: 1040px; margin: 0 auto; padding: 0 16px 48px; }

/* nav */
.nav { display: flex; justify-content: space-between; align-items: center; max-width: 1040px; margin: 0 auto; padding: 18px 16px; }
.brand { display: flex; gap: 10px; align-items: center; font-weight: 800; font-size: 20px; text-decoration: none; }
.logo { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 10px; color: #fff; font-size: 14px; background: linear-gradient(135deg, var(--brand), var(--brand2)); }
.nav nav a { margin-left: 22px; text-decoration: none; color: var(--muted); font-weight: 500; }
.nav nav a:hover { color: var(--text); }

/* hero */
.hero { text-align: center; padding: 40px 0 28px; }
.hero h1 { font-size: clamp(30px, 5vw, 48px); margin: 0 0 12px; letter-spacing: -0.02em; }
.grad { background: linear-gradient(90deg, var(--brand), var(--brand2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.sub { color: var(--muted); max-width: 640px; margin: 0 auto 28px; font-size: 17px; }

.search { display: flex; gap: 8px; max-width: 780px; margin: 0 auto; background: var(--card); padding: 8px; border-radius: 18px; box-shadow: var(--shadow); border: 1px solid var(--line); }
.search input { flex: 1; min-width: 0; border: 0; background: transparent; color: var(--text); font: inherit; font-size: 16px; padding: 12px 14px; outline: none; }

button, .btn-link { font: inherit; font-weight: 600; cursor: pointer; border-radius: 12px; padding: 10px 18px; border: 1px solid transparent; transition: transform .05s, opacity .2s, background .2s; text-decoration: none; display: inline-flex; align-items: center; gap: 6px; }
button:active { transform: translateY(1px); }
button:disabled { opacity: .5; cursor: not-allowed; }
.primary { background: linear-gradient(135deg, var(--brand), var(--brand2)); color: #fff; }
.ghost { background: transparent; border-color: var(--line); color: var(--text); }
.ghost:hover:not(:disabled) { background: var(--bg); }
.search .primary { padding: 12px 28px; }

.error { color: var(--brand); font-weight: 500; margin-top: 14px; }
.status-pills { display: flex; justify-content: center; gap: 8px; margin-top: 14px; flex-wrap: wrap; }
.pill { font-size: 12px; padding: 4px 10px; border-radius: 999px; border: 1px solid var(--line); color: var(--muted); }
.pill.on::before { content: "● "; color: var(--ok); }
.pill.off::before { content: "● "; color: var(--brand); }

/* cards */
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 24px; }
.result { margin-top: 8px; }
.meta { display: flex; gap: 18px; align-items: center; margin-bottom: 18px; }
.meta img { width: 200px; aspect-ratio: 16/9; object-fit: cover; border-radius: 12px; background: var(--line); flex-shrink: 0; }
.meta h2 { margin: 0 0 6px; font-size: 20px; line-height: 1.3; }
.muted { color: var(--muted); margin: 0; }
.small { font-size: 13px; }

.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); margin-bottom: 18px; overflow-x: auto; }
.tab { background: none; border-radius: 10px 10px 0 0; color: var(--muted); padding: 10px 16px; border-bottom: 2px solid transparent; white-space: nowrap; }
.tab.active { color: var(--text); border-bottom-color: var(--brand); }
.panel { display: none; }
.panel.active { display: block; }

.cols { display: grid; grid-template-columns: 1.4fr 1fr; gap: 24px; }
.cols h3 { margin: 0 0 8px; font-size: 15px; }
.fmt { width: 100%; border-collapse: collapse; }
.fmt td { padding: 10px 6px; border-bottom: 1px solid var(--line); }
.fmt td:last-child { text-align: right; }
.fmt .size { color: var(--muted); font-size: 14px; }
.fmt button { padding: 7px 14px; font-size: 14px; }
.badge { font-size: 11px; font-weight: 700; padding: 2px 6px; border-radius: 6px; background: var(--bg); border: 1px solid var(--line); margin-left: 6px; color: var(--muted); }

.toolbar { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 12px; }
.toolbar .spacer { flex: 1; }
.check { display: flex; gap: 6px; align-items: center; color: var(--muted); font-size: 14px; }
select, input:not([type]), input[type=text], textarea, #lang {
  font: inherit; color: var(--text); background: var(--bg); border: 1px solid var(--line); border-radius: 10px; padding: 9px 12px;
}
textarea { width: 100%; resize: vertical; }

.scroll { max-height: 460px; overflow: auto; border: 1px solid var(--line); border-radius: 12px; padding: 14px; background: var(--bg); }
.empty { color: var(--muted); }
.seg { display: flex; gap: 12px; padding: 4px 0; }
.seg a { color: var(--brand2); font-variant-numeric: tabular-nums; text-decoration: none; font-size: 13px; padding-top: 2px; min-width: 52px; }
.no-ts .seg a { display: none; }

.prose { border: 1px solid var(--line); border-radius: 12px; padding: 16px 20px; background: var(--bg); min-height: 120px; }
.prose h2 { font-size: 17px; margin: 18px 0 6px; }
.prose h2:first-child { margin-top: 0; }
.prose ul { padding-left: 20px; }
.prose p { margin: 0 0 10px; }

.voice-grid { display: grid; grid-template-columns: 1fr 280px; gap: 20px; }
.vside { display: flex; flex-direction: column; gap: 8px; }
.vside select { width: 100%; }
.lbl { font-size: 13px; font-weight: 600; color: var(--muted); display: flex; justify-content: space-between; margin-top: 4px; }
.small-btn { padding: 6px 12px; font-size: 13px; align-self: flex-start; }
.vside .primary { margin-top: 10px; justify-content: center; }
.audio-out { display: flex; gap: 12px; align-items: center; margin-top: 18px; flex-wrap: wrap; }
.audio-out audio { flex: 1; min-width: 240px; }

/* features */
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin: 48px 0; }
.ad { margin: 28px auto; max-width: 970px; min-height: 100px; text-align: center; }
.ad-label { display: block; font-size: 11px; color: var(--muted); margin-bottom: 4px; letter-spacing: 0.04em; text-transform: uppercase; }
footer a { color: var(--muted); }
.feat { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; }
.feat .ico { font-size: 24px; }
.feat h3 { margin: 8px 0 6px; font-size: 16px; }
.feat p { margin: 0; color: var(--muted); font-size: 14px; }
.how h2, .faq h2 { margin-top: 0; }
.how ol { margin: 0; padding-left: 20px; }
.how li { margin: 6px 0; }
.faq { margin-top: 40px; }
.faq details { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 14px 18px; margin-bottom: 10px; }
.faq summary { cursor: pointer; font-weight: 600; }
.faq p { color: var(--muted); margin: 8px 0 0; }
footer { text-align: center; color: var(--muted); font-size: 13px; padding: 24px 16px 40px; }

/* summary engines */
.hint { margin: -4px 0 12px; }
.claudeai { border: 1px dashed var(--brand2); border-radius: 12px; padding: 14px 18px; margin-bottom: 14px; }
.claudeai ol { margin: 0 0 12px; padding-left: 20px; }
.claudeai li { margin: 4px 0; }
.claudeai a { color: var(--brand2); font-weight: 600; }
.claudeai .toolbar { margin: 10px 0 0; }
#promptView { font-size: 12px; margin-bottom: 10px; color: var(--muted); }
.tiny { padding: 2px 8px; font-size: 12px; border-radius: 8px; margin-left: 6px; }

/* keys dialog */
.keys-btn { margin-left: 22px; padding: 7px 14px; font-size: 14px; }
.pill { cursor: pointer; }
.dlg { border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); color: var(--text); padding: 24px; width: min(480px, calc(100vw - 32px)); box-shadow: var(--shadow); }
.dlg::backdrop { background: rgba(10, 12, 20, 0.55); }
.dlg h2 { margin: 0 0 6px; }
.dlg input { width: 100%; font: inherit; color: var(--text); background: var(--bg); border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; margin-top: 4px; }
.dlg .lbl { margin-top: 14px; }
.dlg p.small { margin: 4px 0 0; }
.dlg code { font-size: 12px; background: var(--bg); padding: 1px 5px; border-radius: 5px; }
.dlg-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 18px; }
.kstate.ok { color: var(--ok); }
.kstate.bad { color: var(--brand); }
#keysMsg.bad { color: var(--brand); }
#keysMsg.ok { color: var(--ok); }
.dlg-actions #keysForget { margin-right: auto; }
.only-public { display: none; }
body.is-public .only-public { display: block; }
body.is-public .only-local { display: none; }

/* loading + toast */
.spin { width: 14px; height: 14px; border: 2px solid rgba(255,255,255,.4); border-top-color: #fff; border-radius: 50%; animation: s .7s linear infinite; display: inline-block; }
.ghost .spin { border-color: var(--line); border-top-color: var(--text); }
@keyframes s { to { transform: rotate(360deg); } }
.toast { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%); background: var(--text); color: var(--bg); padding: 10px 18px; border-radius: 10px; font-size: 14px; z-index: 10; box-shadow: var(--shadow); }

@media (max-width: 800px) {
  .cols, .voice-grid { grid-template-columns: 1fr; }
  .features { grid-template-columns: 1fr 1fr; }
  .meta { flex-direction: column; align-items: flex-start; }
  .meta img { width: 100%; }
  .nav nav a { display: none; }
}
@media (max-width: 520px) {
  .search { flex-wrap: wrap; }
  .search input { flex-basis: 100%; }
  .search button { flex: 1; justify-content: center; }
  .features { grid-template-columns: 1fr; }
  .card { padding: 16px; }
}