:root {
  --bg: #0b0c10;
  --panel: #15161b;
  --text: #e5e7eb;
  --muted: #9aa0a6;
  --accent: #4f46e5;
  --accent-2: #22c55e;
  --border: #24262e;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Helvetica Neue", sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-tap-highlight-color: transparent;
}

.container { max-width: 1100px; margin: 0 auto; padding: 0 16px; }

.site-header { border-bottom: 1px solid var(--border); background: linear-gradient(180deg, #0e0f14, #0b0c10); padding-top: env(safe-area-inset-top); }
.site-header .brand { margin: 0; padding: 24px 0 4px; font-size: 28px; font-weight: 700; }
.site-header .tagline { margin: 0 0 16px; color: var(--muted); }

.layout { display: grid; grid-template-columns: 1fr 300px; gap: 24px; padding: 24px 0; }
.content { display: flex; flex-direction: column; gap: 24px; }

.hero { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 20px; }
.hero h2 { margin: 0 0 8px; font-size: 22px; }
.features { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; list-style: none; padding: 0; margin: 8px 0 0; }
.features li { background: #191b22; border: 1px solid var(--border); border-radius: 8px; padding: 10px 12px; }

.tool { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 20px; }
.form { display: grid; gap: 12px; }
.form label { font-weight: 600; }
.field { display: grid; grid-template-columns: 1fr auto; gap: 10px; }
input[type="url"] {
  width: 100%;
  border: 1px solid var(--border);
  background: #0f1015;
  color: var(--text);
  border-radius: 10px;
  padding: 12px 14px;
  outline: none;
  min-height: 44px;
  font-size: 16px;
}
input[type="url"]:focus { border-color: var(--accent); }
.btn {
  background: var(--accent);
  border: none;
  color: white;
  padding: 12px 16px;
  border-radius: 10px;
  font-weight: 700;
  cursor: pointer;
  min-height: 44px;
  font-size: 16px;
}
.btn:disabled { opacity: 0.6; cursor: not-allowed; }
.note { margin: 0; color: var(--muted); font-size: 14px; }

.results { display: grid; gap: 12px; }
.result-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.card { background: #191b22; border: 1px solid var(--border); border-radius: 12px; padding: 16px; }
.card h4 { margin: 0 0 10px; }
.actions { margin-top: 10px; }
.link { color: var(--accent-2); text-decoration: none; font-weight: 600; }
.link:hover { text-decoration: underline; }
video, audio { width: 100%; border-radius: 8px; }

.sidebar { display: grid; gap: 16px; }
.info { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 16px; }
.info h4 { margin: 0 0 8px; }
.site-footer { border-top: 1px solid var(--border); padding: 16px 0; color: var(--muted); }

@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  .result-grid { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .site-header .brand { font-size: 24px; }
  .hero { padding: 16px; }
  .features { grid-template-columns: 1fr; }
  .field { grid-template-columns: 1fr; }
  .btn { width: 100%; }
  .ad-vertical { min-height: 160px; }
  .ad-reserved { height: 100px; }
}