*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --surface2: #252836;
  --border: #2d3148;
  --accent: #4f46e5;
  --accent-hover: #4338ca;
  --text: #e2e8f0;
  --text-muted: #8892a4;
  --danger: #ef4444;
  --success: #22c55e;
  --warning: #f59e0b;
  --radius: 8px;
}

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

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

/* ── Auth pages ── */
.auth-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.auth-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 40px;
  width: 100%;
  max-width: 400px;
}

.auth-card h1 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
}

.auth-card p.sub {
  color: var(--text-muted);
  margin-bottom: 28px;
  font-size: 13px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.form-group input,
.form-group select {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  padding: 10px 12px;
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s;
}

.form-group input:focus,
.form-group select:focus {
  border-color: var(--accent);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: background 0.15s, opacity 0.15s;
}

.btn-primary {
  background: var(--accent);
  color: white;
  width: 100%;
}
.btn-primary:hover { background: var(--accent-hover); }

.btn-secondary {
  background: var(--surface2);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-secondary:hover { background: var(--border); }

.btn-danger {
  background: var(--danger);
  color: white;
}
.btn-danger:hover { opacity: 0.85; }

.btn-sm {
  padding: 6px 12px;
  font-size: 12px;
}

.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 13px;
  margin-bottom: 16px;
}
.alert-error { background: rgba(239,68,68,.15); border: 1px solid rgba(239,68,68,.3); color: #fca5a5; }
.alert-success { background: rgba(34,197,94,.15); border: 1px solid rgba(34,197,94,.3); color: #86efac; }

/* ── Workspace layout ── */
.workspace-layout {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0 20px;
  height: 52px;
  flex-shrink: 0;
  gap: 16px;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 15px;
}

.topbar-left .logo { color: var(--accent); }

.topbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-email {
  font-size: 13px;
  color: var(--text-muted);
}

.resources-bar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  height: 36px;
  flex-shrink: 0;
}

.resource-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-muted);
}

.resource-item .label { white-space: nowrap; }

.progress-bar {
  width: 100px;
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
}

.progress-bar .fill {
  height: 100%;
  background: var(--accent);
  border-radius: 3px;
  transition: width 0.5s ease;
}

.progress-bar .fill.warn { background: var(--warning); }
.progress-bar .fill.danger { background: var(--danger); }

.resource-value { font-size: 12px; color: var(--text); white-space: nowrap; }

.iframe-container {
  flex: 1;
  overflow: hidden;
}

.iframe-container iframe {
  width: 100%;
  height: 100%;
  border: none;
  display: block;
}

/* ── Admin dashboard ── */
.dashboard-wrap {
  min-height: 100vh;
  padding: 40px 24px;
}

.dashboard-header {
  text-align: center;
  margin-bottom: 48px;
}

.dashboard-header h1 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 8px;
}

.dashboard-header p { color: var(--text-muted); }

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  max-width: 700px;
  margin: 0 auto;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  cursor: pointer;
  transition: border-color 0.15s, transform 0.1s;
  text-align: center;
}

.card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.card-icon {
  font-size: 40px;
  margin-bottom: 16px;
}

.card h2 { font-size: 18px; font-weight: 600; margin-bottom: 8px; }
.card p { font-size: 13px; color: var(--text-muted); }

/* ── Admin panel ── */
.panel-layout {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

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

.panel-header h1 { font-size: 18px; font-weight: 700; }

.panel-nav {
  display: flex;
  gap: 8px;
}

.panel-nav a {
  padding: 8px 16px;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  transition: background 0.15s, color 0.15s;
}

.panel-nav a:hover, .panel-nav a.active {
  background: var(--surface2);
  color: var(--text);
  text-decoration: none;
}

.panel-body { padding: 24px; flex: 1; }

.section { margin-bottom: 40px; }

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.section-header h2 { font-size: 15px; font-weight: 600; }

/* ── Tables ── */
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

th, td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}

th {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  background: var(--surface2);
}

tr:hover td { background: rgba(255,255,255,.02); }

/* ── Badges ── */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
}

.badge-admin { background: rgba(79,70,229,.2); color: #a5b4fc; border: 1px solid rgba(79,70,229,.3); }
.badge-user  { background: rgba(34,197,94,.15); color: #86efac; border: 1px solid rgba(34,197,94,.25); }
.badge-online { background: rgba(34,197,94,.15); color: #86efac; }
.badge-offline { background: var(--surface2); color: var(--text-muted); }

/* ── Modal ── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.7);
  display: flex; align-items: center; justify-content: center;
  z-index: 100;
  padding: 24px;
}

.modal-overlay.hidden { display: none; }

.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  width: 100%;
  max-width: 440px;
}

.modal h2 { font-size: 18px; font-weight: 600; margin-bottom: 24px; }

.modal-actions {
  display: flex;
  gap: 12px;
  margin-top: 24px;
  justify-content: flex-end;
}

/* ── Account page ── */
.account-wrap {
  max-width: 600px;
  margin: 48px auto;
  padding: 0 24px;
}

.account-wrap h1 { font-size: 24px; font-weight: 700; margin-bottom: 32px; }

.account-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 24px;
}

.account-section h2 {
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.limits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.limit-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  text-align: center;
}

.limit-item .value {
  font-size: 24px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 4px;
}

.limit-item .name {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ── Spinner ── */
.spinner {
  display: inline-block;
  width: 16px; height: 16px;
  border: 2px solid rgba(255,255,255,.2);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ── Responsive ── */
@media (max-width: 640px) {
  .resources-bar { flex-wrap: wrap; height: auto; padding: 8px 12px; }
  .topbar { padding: 0 12px; }
  .auth-card { padding: 28px 20px; }
  .limits-grid { grid-template-columns: 1fr; }
}