:root {
  --bg: #0f1419;
  --card: #1a2029;
  --border: #2a3340;
  --text: #e6edf3;
  --muted: #8b98a8;
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --danger: #ef4444;
  --success: #22c55e;
  --warn: #f59e0b;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.container { max-width: 920px; margin: 0 auto; padding: 2rem 1.25rem 4rem; }

.topbar { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.5rem; }

h1 { font-size: 1.5rem; margin: 0; }
h2 { font-size: 1.15rem; margin: 0 0 .5rem; }

.muted { color: var(--muted); font-size: .9rem; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.login-card { max-width: 360px; margin: 12vh auto 0; }

label { display: block; font-size: .85rem; color: var(--muted); margin: .75rem 0 .25rem; }

input, select {
  width: 100%;
  padding: .55rem .7rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: .95rem;
}
input[type="color"] { height: 42px; padding: .2rem; }

.btn {
  display: inline-block;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  padding: .55rem 1rem;
  border-radius: 8px;
  font-size: .9rem;
  cursor: pointer;
  text-decoration: none;
  margin-top: .75rem;
}
.btn:hover { border-color: var(--primary); }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-hover); }
.btn.ghost { margin-top: 0; }
.btn.small { padding: .3rem .6rem; font-size: .8rem; margin-top: 0; }
.btn.danger { color: var(--danger); border-color: var(--danger); }

.alert { padding: .85rem 1rem; border-radius: 8px; margin-bottom: 1rem; font-size: .9rem; }
.alert.error { background: rgba(239,68,68,.12); border: 1px solid var(--danger); }
.alert.success { background: rgba(34,197,94,.12); border: 1px solid var(--success); }
.token { display: block; margin-top: .5rem; padding: .5rem; background: var(--bg); border-radius: 6px; word-break: break-all; }

.inline-form { display: flex; flex-wrap: wrap; gap: 1rem; align-items: flex-end; margin-bottom: 1.25rem; }
.inline-form > div { flex: 1; min-width: 160px; }
.inline-form label { margin-top: 0; }

.grid-form { display: grid; grid-template-columns: repeat(2, 1fr); gap: .5rem 1rem; }
.grid-form .full { grid-column: 1 / -1; }

table.data { width: 100%; border-collapse: collapse; margin-top: .5rem; font-size: .9rem; }
table.data th, table.data td { text-align: left; padding: .6rem .5rem; border-bottom: 1px solid var(--border); }
table.data th { color: var(--muted); font-weight: 600; }
.actions { display: flex; gap: .4rem; }
.actions form { margin: 0; }

.badge { padding: .15rem .55rem; border-radius: 999px; font-size: .75rem; text-transform: uppercase; }
.badge.active { background: rgba(34,197,94,.15); color: var(--success); }
.badge.expired { background: rgba(245,158,11,.15); color: var(--warn); }
.badge.revoked { background: rgba(239,68,68,.15); color: var(--danger); }

.generator { display: grid; grid-template-columns: 1.4fr 1fr; gap: 1.5rem; align-items: start; }
.generator textarea { width: 100%; min-height: 70px; padding: .55rem .7rem; background: var(--bg); border: 1px solid var(--border); border-radius: 8px; color: var(--text); font: inherit; resize: vertical; }
.preview { display: flex; flex-direction: column; align-items: center; gap: .75rem; }
.preview img { max-width: 100%; width: 260px; background: #fff; border-radius: 8px; padding: .5rem; }
.preview img:not([src]) { display: none; }
details summary { cursor: pointer; margin-top: 1rem; }
details ul { margin: .5rem 0 0; padding-left: 1.2rem; }

.style-gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(90px, 1fr)); gap: .6rem; margin-top: .25rem; }
.style-tile { background: var(--bg); border: 2px solid var(--border); border-radius: 10px; padding: .4rem; cursor: pointer; display: flex; flex-direction: column; align-items: center; gap: .3rem; color: var(--muted); font-size: .75rem; }
.style-tile img { width: 100%; max-width: 80px; border-radius: 6px; background: #fff; }
.style-tile:hover { border-color: var(--primary); }
.style-tile.active { border-color: var(--primary); color: var(--text); box-shadow: 0 0 0 1px var(--primary); }

.urlbuilder { margin-top: 1.25rem; }
.url-row { display: flex; gap: .5rem; }
.url-row input { font-family: ui-monospace, monospace; font-size: .8rem; }
.url-row .btn { margin-top: 0; white-space: nowrap; }

pre { background: var(--bg); border: 1px solid var(--border); border-radius: 8px; padding: 1rem; overflow-x: auto; font-size: .85rem; }
code { background: rgba(255,255,255,.06); padding: .1rem .35rem; border-radius: 4px; }

@media (max-width: 720px) {
  .grid-form { grid-template-columns: 1fr; }
  .generator { grid-template-columns: 1fr; }
}