:root {
  --bg: #0f172a;
  --surface: #16213a;
  --surface-2: #1d2a4a;
  --border: #2b3a5e;
  --text: #e7ecf7;
  --text-dim: #9aa7c7;
  --accent: #6ea8fe;
  --accent-2: #7ee6c2;
  --danger: #ff8080;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
}

.brand {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--accent);
  text-decoration: none;
}

.topbar nav a {
  color: var(--text-dim);
  text-decoration: none;
  margin-left: 1.25rem;
  font-weight: 500;
}

.topbar nav a:hover { color: var(--text); }

.container {
  flex: 1;
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
}

h1 { margin-top: 0; }

.subtitle {
  color: var(--text-dim);
  margin-bottom: 1.5rem;
}

.form label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-bottom: 0.35rem;
  margin-top: 1rem;
}

.form input[type="url"],
.form input[type="number"] {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  font-size: 1rem;
}

.form-row {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.form-row > div {
  flex: 1;
  min-width: 180px;
}

button, .button {
  display: inline-block;
  margin-top: 1.5rem;
  padding: 0.65rem 1.25rem;
  background: var(--accent);
  color: #0b1224;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  font-size: 1rem;
}

button:hover, .button:hover { filter: brightness(1.08); }

.alert {
  padding: 0.75rem 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
}

.alert-error {
  background: rgba(255, 128, 128, 0.15);
  border: 1px solid var(--danger);
  color: var(--danger);
}

.result {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.short-url a {
  color: var(--accent-2);
  font-size: 1.1rem;
  word-break: break-all;
}

.qr-block {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

.qr-img {
  width: 160px;
  height: 160px;
  background: #fff;
  border-radius: 8px;
  padding: 8px;
}

.table-wrap { overflow-x: auto; }

.links-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.links-table th, .links-table td {
  padding: 0.65rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}

.links-table th {
  color: var(--text-dim);
  font-weight: 600;
  background: var(--surface-2);
}

.links-table a { color: var(--accent); }

.truncate {
  max-width: 220px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.badge {
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

.badge-active {
  background: rgba(126, 230, 194, 0.15);
  color: var(--accent-2);
}

.badge-expired {
  background: rgba(255, 128, 128, 0.15);
  color: var(--danger);
}

.empty { color: var(--text-dim); }

.expired-card {
  text-align: center;
  padding: 3rem 2rem;
}

.expired-icon { font-size: 3rem; }

.footer {
  text-align: center;
  color: var(--text-dim);
  font-size: 0.8rem;
  padding: 1.5rem;
}