:root {
  --bg: #0f1419;
  --card: #1a2332;
  --text: #e7eef7;
  --muted: #93a4b8;
  --accent: #3dd6c6;
  --bad: #ff6b6b;
  --ok: #3ddc84;
  --line: #2a384c;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font: 16px/1.45 "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
}
.wrap { max-width: 720px; margin: 0 auto; padding: 32px 16px 64px; }
h1 { margin: 0 0 8px; font-size: 1.7rem; }
h2 { font-size: 1.05rem; margin: 0 0 8px; }
.sub, .api p { color: var(--muted); }
form, .api, #result {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
  margin-top: 16px;
}
label { display: block; font-size: 0.85rem; color: var(--muted); margin-bottom: 12px; }
input, select, button {
  width: 100%;
  margin-top: 6px;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #0f1419;
  color: var(--text);
  font: inherit;
}
.row { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 12px; }
button {
  background: var(--accent);
  color: #06211e;
  font-weight: 700;
  border: 0;
  cursor: pointer;
}
button.ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--line);
  margin-top: 8px;
}
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.62);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  z-index: 20;
}
.modal[hidden] { display: none; }
.dialog {
  width: min(480px, 100%);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 20px;
}
.bar {
  height: 10px;
  background: #0f1419;
  border-radius: 99px;
  overflow: hidden;
  margin: 14px 0;
}
.bar span {
  display: block;
  height: 100%;
  width: 0;
  background: var(--accent);
  transition: width 0.35s ease;
}
.ok-text { color: var(--ok); }
.bad-text { color: var(--bad); }
audio { width: 100%; margin: 8px 0; }
a { color: var(--accent); }
pre {
  overflow: auto;
  background: #0f1419;
  padding: 12px;
  border-radius: 8px;
  font-size: 0.82rem;
}
.status { color: var(--accent); }
.checks { list-style: none; padding: 0; }
.checks li { padding: 8px 0; border-bottom: 1px solid var(--line); }
.ok::before { content: "OK  "; color: var(--ok); font-weight: 700; }
.bad::before { content: "NO  "; color: var(--bad); font-weight: 700; }
@media (max-width: 640px) { .row { grid-template-columns: 1fr; } }