/* ===== Design tokens ===== */
:root {
  --bg-0: #0b0d12;
  --bg-1: #131722;
  --bg-2: #1a1f2e;
  --bg-3: #232a3d;
  --border: #2a3144;
  --text-0: #e8ecf3;
  --text-1: #a8b1c4;
  --text-2: #6f788c;
  --accent: #7c5cff;
  --accent-h: #9b80ff;
  --accent-2: #00d4aa;
  --danger: #ff5577;
  --warn: #ffb347;
  --ok: #00d4aa;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  --radius: 12px;
  --radius-sm: 8px;
  --gradient: linear-gradient(135deg, #7c5cff 0%, #5a8eff 100%);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg-0);
  color: var(--text-0);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
}

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

button {
  font-family: inherit;
  cursor: pointer;
}

input, select, textarea {
  font-family: inherit;
  background: var(--bg-2);
  border: 1px solid var(--border);
  color: var(--text-0);
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  transition: border 0.15s;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
}

/* ===== Login page ===== */
.login-bg {
  display: grid;
  place-items: center;
  min-height: 100vh;
  background: radial-gradient(circle at 20% 30%, rgba(124, 92, 255, 0.18), transparent 50%),
              radial-gradient(circle at 80% 70%, rgba(0, 212, 170, 0.1), transparent 50%),
              var(--bg-0);
}
.login-card {
  width: min(400px, 92vw);
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
}
.login-card header { text-align: center; margin-bottom: 24px; }
.login-card .logo {
  font-size: 48px;
  margin-bottom: 12px;
}
.login-card h1 {
  margin: 0;
  font-size: 22px;
  font-weight: 600;
}
.login-card .subtitle {
  margin: 4px 0 0;
  color: var(--text-2);
  font-size: 13px;
}
.login-card form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.login-card label { color: var(--text-1); font-size: 13px; }
.login-card button {
  background: var(--gradient);
  border: 0;
  color: white;
  padding: 12px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  margin-top: 8px;
  transition: transform 0.1s, box-shadow 0.15s;
}
.login-card button:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(124, 92, 255, 0.4);
}
.login-card button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}
.error {
  color: var(--danger);
  font-size: 13px;
  margin: 0;
}

/* ===== Admin layout ===== */
.app {
  display: grid;
  grid-template-columns: 220px 1fr;
  min-height: 100vh;
}

.sidebar {
  background: var(--bg-1);
  border-right: 1px solid var(--border);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.sidebar .brand {
  font-weight: 700;
  font-size: 18px;
  margin-bottom: 16px;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.sidebar nav { display: flex; flex-direction: column; gap: 2px; }
.sidebar nav button {
  text-align: left;
  background: transparent;
  border: 0;
  color: var(--text-1);
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  transition: background 0.1s, color 0.1s;
}
.sidebar nav button:hover {
  background: var(--bg-2);
  color: var(--text-0);
}
.sidebar nav button.active {
  background: var(--accent);
  color: white;
}
.sidebar .spacer { flex: 1; }
.sidebar .logout {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-1);
  padding: 8px;
  border-radius: var(--radius-sm);
}
.sidebar .logout:hover {
  border-color: var(--danger);
  color: var(--danger);
}

.main {
  padding: 24px 32px;
  overflow: auto;
}
.main h2 {
  margin: 0 0 4px;
  font-size: 22px;
  font-weight: 600;
}
.main .page-sub {
  color: var(--text-2);
  margin: 0 0 20px;
  font-size: 13px;
}

/* ===== Cards / widgets ===== */
.grid {
  display: grid;
  gap: 16px;
}
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }

.card {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.card .card-title {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-2);
  margin-bottom: 8px;
}
.card .card-value {
  font-size: 28px;
  font-weight: 600;
  margin-bottom: 4px;
}
.card .card-sub { font-size: 12px; color: var(--text-2); }

/* ===== Tables ===== */
.toolbar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 12px;
}
.toolbar input[type="search"] { flex: 1; min-width: 200px; }

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
thead { background: var(--bg-2); }
th, td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}
tbody tr:hover { background: var(--bg-2); }
th {
  font-weight: 600;
  color: var(--text-1);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}
tbody tr:last-child td { border-bottom: 0; }

.btn {
  background: var(--accent);
  color: white;
  border: 0;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  transition: background 0.15s;
}
.btn:hover { background: var(--accent-h); }
.btn-secondary {
  background: var(--bg-2);
  color: var(--text-0);
  border: 1px solid var(--border);
}
.btn-secondary:hover { background: var(--bg-3); }
.btn-danger { background: var(--danger); }
.btn-danger:hover { background: #ff7a93; }
.btn-sm { padding: 4px 10px; font-size: 12px; }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 500;
}
.badge-ok { background: rgba(0, 212, 170, 0.15); color: var(--ok); }
.badge-warn { background: rgba(255, 179, 71, 0.15); color: var(--warn); }
.badge-danger { background: rgba(255, 85, 119, 0.15); color: var(--danger); }
.badge-muted { background: var(--bg-3); color: var(--text-1); }

/* ===== Forms ===== */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 12px;
}
.form-group label {
  font-size: 12px;
  color: var(--text-1);
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
textarea {
  font-family: 'JetBrains Mono', Consolas, monospace;
  font-size: 13px;
  min-height: 200px;
  resize: vertical;
}
.code, code {
  font-family: 'JetBrains Mono', Consolas, monospace;
  font-size: 12px;
  background: var(--bg-2);
  padding: 1px 6px;
  border-radius: 4px;
  color: var(--accent-h);
}

/* ===== Modal ===== */
.modal-bg {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: grid;
  place-items: center;
  z-index: 100;
  padding: 16px;
}
.modal {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  width: min(560px, 100%);
  max-height: 85vh;
  overflow: auto;
  box-shadow: var(--shadow);
}
.modal h3 { margin: 0 0 16px; font-size: 18px; }
.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 16px;
}

/* ===== Toast ===== */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  z-index: 200;
  animation: slideUp 0.2s ease-out;
}
.toast.ok { border-left-color: var(--ok); }
.toast.error { border-left-color: var(--danger); }
@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* ===== Loading ===== */
.spinner {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Mobile */
@media (max-width: 768px) {
  .app { grid-template-columns: 1fr; }
  .sidebar {
    flex-direction: row;
    overflow-x: auto;
    padding: 8px;
  }
  .sidebar .brand, .sidebar .spacer, .sidebar .logout { display: none; }
  .sidebar nav { flex-direction: row; }
  .main { padding: 16px; }
}