:root {
  --pad: 14px;
  --gap: 14px;
  --radius: 14px;
  /* Light theme palette */
  --bg0: #f5f7fb;
  --bg1: #ffffff;
  --bg2: rgba(0,0,0,0.04);
  --text: #111827; /* gray-900 */
  --muted: #6b7280; /* gray-500 */
  --accent: #0ea5e9; /* sky-500 */
  --accent2: #22c55e; /* green-500 */
  --primary: #4f46e5; /* indigo-600 */
}
* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(1200px 700px at 20% -10%, rgba(14,165,233,0.15), transparent 60%),
    radial-gradient(1200px 700px at 80% -10%, rgba(34,197,94,0.12), transparent 60%),
    linear-gradient(180deg, var(--bg0), var(--bg1));
  font-family: system-ui, -apple-system, Segoe UI, Roboto, PingFang SC, Noto Sans SC, Arial, sans-serif;
}
main { padding: calc(var(--pad) * 1.2); max-width: 720px; margin: 0 auto; }
.title { font-size: 28px; letter-spacing: 0.3px; margin: 18px 6px; }
.subtitle { font-size: 20px; color: var(--muted); margin: 18px 6px; }
.view.hidden { display: none; }

/* Card */
.card, form {
  display: grid;
  gap: var(--gap);
  background: #ffffff;
  border: 1px solid #e5e7eb; /* gray-200 */
  padding: calc(var(--pad) * 1.2);
  border-radius: var(--radius);
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
}

label { display: grid; gap: 8px; font-size: 14px; color: var(--muted); }
input {
  font-size: 18px;
  padding: 14px 16px;
  border: 1px solid #d1d5db; /* gray-300 */
  border-radius: 12px;
  background: #ffffff;
  color: var(--text);
  outline: none;
  min-height: 48px;
}
input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(14,165,233,0.25);
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 10px; cursor: pointer; user-select: none;
  border-radius: 12px; border: 1px solid #d1d5db; /* gray-300 */
  padding: 12px 16px; font-size: 18px; font-weight: 600;
  background: #ffffff; color: var(--text);
  transition: transform .06s ease, background .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.btn:hover { background: #f9fafb; }
.btn:active { transform: translateY(1px) scale(0.99); }
.btn-block { width: 100%; }
.btn-large { min-height: 56px; font-size: 18px; padding: 14px 18px; }
.btn-icon { display: inline-flex; }
.btn-primary { background: linear-gradient(90deg, var(--primary), #6d28d9); border-color: transparent; color: #ffffff; }
.btn-primary:hover { box-shadow: 0 6px 20px rgba(79,70,229,0.35); }
.btn-accent { background: linear-gradient(90deg, var(--accent), var(--accent2)); color: #062a36; border-color: transparent; }
.btn-accent:hover { box-shadow: 0 6px 20px rgba(14,165,233,0.30); }
.btn-secondary { background: #ffffff; }
.btn-danger { background: linear-gradient(90deg, #ef4444, #dc2626); border-color: transparent; color: #ffffff; }
.btn-danger:hover { box-shadow: 0 6px 20px rgba(220,38,38,0.25); }
.btn-small { min-height: 40px; padding: 8px 12px; font-size: 14px; }

.toolbar {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: var(--gap);
  padding: 8px 0;
}
.toolbar h1 { font-size: 22px; margin: 0; }

.actions { display: grid; grid-template-columns: 1fr; gap: 12px; }
@media (min-width: 480px) {
  .actions { grid-template-columns: 1fr 1fr; }
}

ul#list { list-style: none; padding: 0; margin: 0; }
ul#list li {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 14px; border-radius: 12px; margin-bottom: 10px; gap: 12px;
  background: #ffffff; border: 1px solid #e5e7eb;
  box-shadow: 0 4px 14px rgba(0,0,0,0.06);
}
.item-text { flex: 1; min-width: 0; }

.msg { color: #b91c1c; min-height: 1.5em; }
video { width: 100%; border-radius: var(--radius); background: #111; border: 1px solid #e5e7eb; }

/* Admin table */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
thead th { text-align: left; font-weight: 700; font-size: 14px; color: var(--muted); padding: 10px 8px; border-bottom: 1px solid #e5e7eb; }
tbody td { padding: 12px 8px; border-bottom: 1px solid #f1f5f9; font-size: 16px; }