:root {
  --bg: #0f172a;
  --bg-card: #1e293b;
  --accent: #38bdf8;
  --accent-soft: #0ea5e9;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --danger: #f97373;
  --radius: 12px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body {
  background: radial-gradient(circle at top, #1e293b, #020617);
  color: var(--text);
  min-height: 100vh;
}

header {
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

header .logo {
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 14px;
}

nav a,
button.link {
  margin-left: 12px;
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
}

nav a:hover,
button.link:hover {
  color: var(--accent);
}

.main-container {
  max-width: 960px;
  margin: 0 auto;
  padding: 32px 16px 48px;
}

.card {
  background: rgba(15, 23, 42, 0.92);
  border-radius: var(--radius);
  border: 1px solid rgba(148, 163, 184, 0.18);
  box-shadow: 0 18px 45px rgba(15, 23, 42, 0.6);
  padding: 24px;
}

h1 {
  font-size: 28px;
  margin-bottom: 8px;
}

h2 {
  font-size: 20px;
  margin-bottom: 12px;
}

p.lead {
  margin-top: 8px;
  margin-bottom: 24px;
  color: var(--muted);
}

form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

input,
select {
  padding: 10px 12px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.4);
  background: #020617;
  color: var(--text);
}

input::placeholder {
  color: var(--muted);
}

button.primary {
  margin-top: 8px;
  padding: 10px 16px;
  border-radius: 999px;
  border: none;
  background: linear-gradient(120deg, var(--accent), var(--accent-soft));
  color: #0b1120;
  font-weight: 600;
  cursor: pointer;
}

button.primary:disabled {
  opacity: 0.6;
  cursor: default;
}

button.secondary,
button.danger {
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.5);
  background: transparent;
  color: var(--muted);
  font-size: 13px;
  cursor: pointer;
}

button.danger {
  border-color: rgba(248, 113, 113, 0.5);
  color: var(--danger);
}

button.secondary:hover,
button.danger:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.col {
  flex: 1;
  min-width: 280px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--muted);
  background: rgba(15, 23, 42, 0.9);
  border-radius: 999px;
  padding: 4px 10px;
  border: 1px solid rgba(148, 163, 184, 0.3);
}

.badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: var(--accent);
}

ul.list {
  list-style: none;
  margin-top: 12px;
}

ul.list li {
  padding: 8px 10px;
  border-radius: 10px;
  background: rgba(15, 23, 42, 0.85);
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
  font-size: 14px;
}

ul.list li span {
  display: flex;
  align-items: center;
  gap: 8px;
}

.checkbox {
  width: 16px;
  height: 16px;
}

.subtle {
  font-size: 13px;
  color: var(--muted);
  margin-top: 8px;
}

.error {
  color: var(--danger);
  font-size: 13px;
  margin-top: 4px;
}

.success {
  color: #4ade80;
  font-size: 13px;
  margin-top: 4px;
}