:root {
  --bg: #0f1419;
  --panel: #1a2332;
  --panel2: #243044;
  --border: #2e3f55;
  --text: #e7eef8;
  --muted: #9bb0c9;
  --accent: #5b9fd4;
  --accent2: #3d8bfd;
  --ok: #3ecf8e;
  --warn: #f0b429;
  --danger: #f07178;
  --radius: 10px;
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  background: radial-gradient(1200px 600px at 10% -10%, #1a2a44 0%, var(--bg) 55%);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.5;
}

.wrap { max-width: 1100px; margin: 0 auto; padding: 24px 16px 48px; }
header h1 { margin: 0 0 4px; font-size: 1.6rem; letter-spacing: 0.02em; }
header .sub { color: var(--muted); margin: 0 0 20px; font-size: 0.95rem; }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  margin-bottom: 16px;
}
.card h2 {
  margin: 0 0 10px;
  font-size: 1.05rem;
  display: flex;
  align-items: center;
  gap: 8px;
}
.card h2 .badge {
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--panel2);
  color: var(--warn);
  border: 1px solid #5a4a20;
}

.info ul { margin: 8px 0; padding-left: 1.2rem; color: var(--muted); }
.info a { color: var(--accent); }
.info details summary {
  cursor: pointer;
  color: var(--accent);
  font-weight: 600;
  list-style: none;
}
.info details summary::-webkit-details-marker { display: none; }

.row { display: flex; flex-wrap: wrap; gap: 12px; align-items: flex-end; }
.field { display: flex; flex-direction: column; gap: 4px; flex: 1; min-width: 160px; }
.field label { font-size: 0.8rem; color: var(--muted); }
.field input[type="password"],
.field input[type="text"],
.field select,
.field textarea,
.field input[type="file"] {
  background: var(--panel2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 8px 10px;
  font: inherit;
}
.field textarea {
  font-family: var(--mono);
  font-size: 0.82rem;
  min-height: 140px;
  resize: vertical;
  width: 100%;
}

.toggles { display: flex; gap: 16px; flex-wrap: wrap; padding-top: 4px; }
.toggles label {
  display: flex; align-items: center; gap: 6px;
  color: var(--muted); font-size: 0.9rem; cursor: pointer;
}

.presets { display: flex; flex-wrap: wrap; gap: 8px; }
.btn {
  appearance: none;
  border: 1px solid var(--border);
  background: var(--panel2);
  color: var(--text);
  border-radius: 8px;
  padding: 8px 14px;
  cursor: pointer;
  font: inherit;
  font-size: 0.9rem;
}
.btn:hover { border-color: var(--accent); color: #fff; }
.btn.primary {
  background: linear-gradient(135deg, var(--accent2), #2a6fd4);
  border-color: transparent;
  font-weight: 600;
}
.btn.primary:disabled { opacity: 0.5; cursor: wait; }
.btn.preset-active { border-color: var(--ok); color: var(--ok); }

.grid2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
@media (max-width: 800px) { .grid2 { grid-template-columns: 1fr; } }

.status {
  font-size: 0.85rem;
  color: var(--muted);
  min-height: 1.2em;
}
.status.err { color: var(--danger); }
.status.ok { color: var(--ok); }

pre.result {
  background: #0b1017;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  overflow: auto;
  max-height: 420px;
  font-family: var(--mono);
  font-size: 0.78rem;
  margin: 0;
}

.overlay-wrap {
  position: relative;
  display: inline-block;
  max-width: 100%;
  margin-top: 12px;
}
.overlay-wrap canvas {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  border: 1px solid var(--border);
  display: block;
}
.hint { font-size: 0.8rem; color: var(--muted); margin-top: 6px; }