:root {
  --bg: #0f172a;
  --card: #1e293b;
  --accent: #3b82f6;
  --accent2: #22c55e;
  --danger: #ef4444;
  --warn: #eab308;
  --text: #f1f5f9;
  --text-dim: #94a3b8;
  --border: #334155;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  min-height: 100vh;
}
#app { max-width: 480px; margin: 0 auto; min-height: 100vh; display: flex; flex-direction: column; }
header.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 16px; border-bottom: 1px solid var(--border);
}
header.topbar h1 { font-size: 17px; margin: 0; }
main { flex: 1; padding: 16px; overflow-y: auto; }

.btn {
  display: block; width: 100%; padding: 16px; border: none; border-radius: 12px;
  font-size: 17px; font-weight: 600; text-align: center; cursor: pointer;
  background: var(--accent); color: white; margin: 8px 0;
}
.btn.secondary { background: var(--card); border: 1px solid var(--border); color: var(--text); }
.btn.danger { background: var(--danger); }
.btn.success { background: var(--accent2); }
.btn:disabled { opacity: .5; }

.card {
  background: var(--card); border: 1px solid var(--border); border-radius: 14px;
  padding: 14px; margin-bottom: 12px;
}
.pill {
  display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 700;
}
.pill.pendiente { background: #7f1d1d; color: #fecaca; }
.pill.en_curso { background: #713f12; color: #fde68a; }
.pill.terminado, .pill.cerrado { background: #14532d; color: #bbf7d0; }
.pill.cerrado_con_observacion { background: #78350f; color: #fed7aa; }

/* PIN pad */
.pin-dots { display: flex; justify-content: center; gap: 14px; margin: 24px 0; }
.pin-dots span {
  width: 16px; height: 16px; border-radius: 50%; border: 2px solid var(--text-dim);
}
.pin-dots span.filled { background: var(--accent); border-color: var(--accent); }
.pin-pad { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.pin-pad button {
  padding: 20px 0; font-size: 22px; border-radius: 12px; border: 1px solid var(--border);
  background: var(--card); color: var(--text); cursor: pointer;
}
.pin-error { color: var(--danger); text-align: center; margin-top: 8px; min-height: 20px; }

label { display: block; font-size: 13px; color: var(--text-dim); margin: 10px 0 4px; }
input[type=text], textarea {
  width: 100%; padding: 12px; border-radius: 10px; border: 1px solid var(--border);
  background: #0b1220; color: var(--text); font-size: 16px;
}

.tabs { display: flex; gap: 6px; margin-bottom: 10px; }
.tabs button {
  flex: 1; padding: 10px 0; border-radius: 10px; border: 1px solid var(--border);
  background: var(--card); color: var(--text-dim); cursor: pointer; font-weight: 600;
}
.tabs button.active { background: var(--accent); color: white; border-color: var(--accent); }

.thumbs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin: 10px 0; }
.thumbs .thumb {
  aspect-ratio: 1; border-radius: 10px; background: #0b1220; border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center; overflow: hidden; font-size: 24px;
}
.thumbs .thumb img, .thumbs .thumb video { width: 100%; height: 100%; object-fit: cover; }

canvas#firma-canvas {
  width: 100%; height: 220px; background: white; border-radius: 10px; touch-action: none;
}

.small { font-size: 13px; color: var(--text-dim); }
.center { text-align: center; }
.row { display: flex; gap: 10px; }
.row > * { flex: 1; }

a.link-accion { color: var(--accent); text-decoration: none; font-weight: 600; }

.banner-offline {
  background: var(--warn); color: #1c1917; text-align: center; padding: 6px; font-size: 13px; font-weight: 600;
}