:root {
  color-scheme: light;
  --bg: #0b1220;
  --card: rgba(255, 255, 255, 0.06);
  --card2: rgba(255, 255, 255, 0.09);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.70);
  --border: rgba(255, 255, 255, 0.14);
  --brand: #5eead4;
  --brand2: #60a5fa;
  --danger: #fb7185;
  --shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
  --radius: 14px;
  --radius-sm: 10px;
  --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
}

body {
  margin: 0;
  font-family: var(--font);
  background: radial-gradient(900px 520px at 10% 10%, rgba(96, 165, 250, 0.35), transparent 60%),
              radial-gradient(700px 480px at 80% 0%, rgba(94, 234, 212, 0.22), transparent 55%),
              radial-gradient(800px 520px at 50% 100%, rgba(251, 113, 133, 0.10), transparent 60%),
              var(--bg);
  color: var(--text);
}

a {
  color: var(--brand2);
  text-decoration: none;
}
a:hover { text-decoration: underline; }

.container {
  width: min(1100px, calc(100% - 32px));
  margin: 28px auto 56px;
}

.topbar {
  display: flex;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.brand-title {
  font-weight: 750;
  letter-spacing: 0.2px;
}
.brand-subtitle {
  font-size: 12px;
  color: var(--muted);
}

.nav {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  cursor: pointer;
  font-weight: 650;
  transition: transform 0.12s ease, background 0.12s ease, border-color 0.12s ease;
  text-decoration: none;
}
.btn:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.10);
  border-color: rgba(255, 255, 255, 0.22);
  text-decoration: none;
}
.btn-primary {
  border-color: rgba(96, 165, 250, 0.55);
  background: linear-gradient(135deg, rgba(96, 165, 250, 0.32), rgba(94, 234, 212, 0.16));
}
.btn-danger {
  border-color: rgba(251, 113, 133, 0.55);
  background: rgba(251, 113, 133, 0.10);
}
.btn-small { padding: 8px 10px; border-radius: 10px; font-weight: 650; }

.grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(12, 1fr);
  margin-top: 18px;
}

.card {
  grid-column: span 12;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.card-header {
  padding: 16px 16px 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.10);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}
.card-title {
  font-size: 18px;
  margin: 0;
  letter-spacing: 0.2px;
}
.card-subtitle {
  font-size: 13px;
  color: var(--muted);
}
.card-body { padding: 16px; }

.alert {
  border: 1px solid rgba(251, 113, 133, 0.55);
  background: rgba(251, 113, 133, 0.10);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  color: var(--text);
  margin: 12px 0;
}

.form {
  display: grid;
  gap: 12px;
}
.row {
  display: grid;
  gap: 10px;
  grid-template-columns: 1fr;
}
@media (min-width: 720px) {
  .row-2 { grid-template-columns: 1fr 1fr; }
  .row-3 { grid-template-columns: 1fr 1fr 1fr; }
}

label {
  font-size: 12px;
  color: var(--muted);
  display: block;
  margin-bottom: 6px;
}
input, select {
  width: 100%;
  padding: 11px 12px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(10, 15, 26, 0.55);
  color: var(--text);
  outline: none;
}
input:focus, select:focus {
  border-color: rgba(96, 165, 250, 0.65);
  box-shadow: 0 0 0 4px rgba(96, 165, 250, 0.18);
}

.table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
}
.table th, .table td {
  padding: 12px 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.10);
  text-align: left;
}
.table thead th {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.75);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: rgba(255, 255, 255, 0.06);
}
.table tbody tr:hover td {
  background: rgba(255, 255, 255, 0.04);
}
.badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  font-size: 12px;
  color: var(--muted);
}

.muted { color: var(--muted); }
.spacer { height: 10px; }