:root {
  --bg: #f4f5f7;
  --card-bg: #ffffff;
  --text: #1a1d23;
  --text-muted: #6b7280;
  --border: #e2e4e9;
  --primary: #3b5bfd;
  --primary-hover: #2c46d4;
  --danger: #d9364c;
  --danger-hover: #b62b3e;
  --success-bg: #e6f6ec;
  --success-text: #1a7f42;
  --error-bg: #fdecee;
  --error-text: #b3212f;
  --radius: 10px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14161a;
    --card-bg: #1d2026;
    --text: #e8e9ec;
    --text-muted: #9297a3;
    --border: #2c303a;
    --primary: #5b7bff;
    --primary-hover: #7891ff;
    --danger: #ef5468;
    --danger-hover: #f37383;
    --success-bg: #113321;
    --success-text: #5fd98a;
    --error-bg: #3a1b20;
    --error-text: #f27f8a;
  }
}

* { 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);
}

.center-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}

.login-card {
  width: 100%;
  max-width: 360px;
}

.login-card h1 {
  font-size: 20px;
  margin: 0 0 4px;
}

.login-card p.subtitle {
  color: var(--text-muted);
  margin: 0 0 24px;
  font-size: 14px;
}

label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-muted);
}

input, select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  margin-bottom: 16px;
}

input:focus, select:focus {
  outline: none;
  border-color: var(--primary);
}

button {
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  border-radius: 8px;
  border: none;
  padding: 10px 16px;
  transition: background 0.15s ease;
}

button.primary {
  width: 100%;
  background: var(--primary);
  color: #fff;
}
button.primary:hover { background: var(--primary-hover); }
button.primary:disabled { opacity: 0.6; cursor: not-allowed; }

button.danger {
  background: var(--danger);
  color: #fff;
}
button.danger:hover { background: var(--danger-hover); }

button.ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}
button.ghost:hover { border-color: var(--text-muted); }

.msg {
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 13px;
  margin-bottom: 16px;
  display: none;
}
.msg.error { background: var(--error-bg); color: var(--error-text); display: block; }
.msg.success { background: var(--success-bg); color: var(--success-text); display: block; }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--card-bg);
}

.topbar h1 { font-size: 16px; margin: 0; }
.topbar .who { font-size: 13px; color: var(--text-muted); }

.page {
  max-width: 960px;
  margin: 0 auto;
  padding: 24px;
}

.panel {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 24px;
}

.panel h2 {
  font-size: 15px;
  margin: 0 0 16px;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  align-items: end;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

th, td {
  text-align: left;
  padding: 10px 8px;
  border-bottom: 1px solid var(--border);
}

th { color: var(--text-muted); font-weight: 600; }

td.actions { display: flex; gap: 8px; }
td.actions button { padding: 6px 10px; font-size: 12px; }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
}
.badge.admin { background: var(--success-bg); color: var(--success-text); }
.badge.user { background: var(--border); color: var(--text-muted); }

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