:root {
  --bg: #09090f;
  --card: #14141d;
  --text: #f3f3f8;
  --muted: #9aa0b4;
  --line: rgba(255,255,255,.08);
  --accent: #55e7ff;
  --purple: #7d8cff;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: Inter, system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}
.top {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 14px 24px;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  background: rgba(9,9,15,.92);
  backdrop-filter: blur(16px);
  z-index: 10;
}
.brand { display: flex; align-items: center; gap: 10px; color: inherit; text-decoration: none; font-weight: 700; }
.brand img { width: 32px; height: 32px; border-radius: 8px; }
.tabs { display: flex; gap: 8px; margin-left: auto; }
.tabs a, .btn {
  color: var(--text);
  text-decoration: none;
  border: 1px solid var(--line);
  background: transparent;
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 14px;
  cursor: pointer;
  font-family: inherit;
}
.tabs a.active, .btn.primary {
  background: linear-gradient(135deg, #55e7ff, #7d8cff);
  border-color: transparent;
  color: #fff;
}
.who { color: var(--muted); font-size: 13px; }
.wrap { max-width: 1100px; margin: 0 auto; padding: 32px 24px 80px; }
h1 { font-size: 32px; margin-bottom: 8px; }
.muted { color: var(--muted); margin-bottom: 24px; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px;
}
.card h3 { margin-bottom: 8px; }
.row { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
input, textarea, select {
  width: 100%;
  background: #0c0c14;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  font-family: inherit;
  margin: 8px 0;
}
textarea { min-height: 220px; font-family: ui-monospace, monospace; font-size: 13px; }
label { font-size: 13px; color: var(--muted); display: block; margin-top: 10px; }
.badge { display: inline-block; font-size: 12px; padding: 3px 8px; border-radius: 999px; background: rgba(85,231,255,.12); color: var(--accent); }
iframe.preview {
  width: 100%;
  min-height: 70vh;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
}
.warn { color: #f0abfc; font-size: 13px; }