:root {
  --bg-0: #0b0d12;
  --bg-1: #11141b;
  --bg-2: #161a23;
  --bg-3: #1d2230;
  --border: #262b3a;
  --border-strong: #313747;
  --text: #e6e8f0;
  --text-dim: #a1a7bb;
  --muted: #6b7290;
  --accent: #6366f1;
  --accent-2: #818cf8;
  --success: #10b981;
  --warn: #f59e0b;
  --danger: #ef4444;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 2px rgba(0,0,0,.4), 0 8px 24px rgba(0,0,0,.25);
}

* { box-sizing: border-box; }
html, body { height: 100%; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Inter, Roboto, sans-serif;
  background: radial-gradient(1200px 600px at 80% -200px, rgba(99,102,241,.10), transparent 50%),
              radial-gradient(900px 500px at -200px 100%, rgba(16,185,129,.06), transparent 50%),
              var(--bg-0);
  color: var(--text);
  font-size: 14px;
  line-height: 1.45;
}

a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3 { margin: 0; }
h1 { font-size: 24px; font-weight: 700; letter-spacing: -.01em; }
h2 { font-size: 16px; font-weight: 600; }

.muted { color: var(--text-dim); }
.small { font-size: 12px; }
.danger { color: var(--danger); }

/* Header */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  background: rgba(17, 20, 27, 0.7);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
}
.app-header-left, .app-header-right { display: flex; align-items: center; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 600; }
.brand:hover { text-decoration: none; }
.brand-mark {
  width: 32px; height: 32px; border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: grid; place-items: center;
  font-weight: 800; color: white; font-size: 13px;
  box-shadow: 0 2px 12px rgba(99,102,241,.4);
}
.brand-name { font-size: 15px; }
.header-divider {
  width: 1px; height: 22px; background: var(--border-strong);
  margin: 0 4px;
}
.tenant-name { font-weight: 600; }

.app-nav { display: flex; gap: 4px; margin-left: 16px; }
.app-nav a {
  padding: 8px 12px; border-radius: var(--radius-sm); color: var(--text-dim);
  font-weight: 500;
}
.app-nav a:hover { background: var(--bg-3); color: var(--text); text-decoration: none; }
.app-nav a.active { background: var(--bg-3); color: var(--text); }

.tenant-switcher, .user-menu { position: relative; }
.tenant-switcher summary, .user-menu summary {
  list-style: none; cursor: pointer; user-select: none;
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 10px; border-radius: var(--radius-sm);
  background: var(--bg-3); border: 1px solid var(--border);
}
.tenant-switcher summary::-webkit-details-marker, .user-menu summary::-webkit-details-marker { display: none; }
.tenant-switcher summary:hover, .user-menu summary:hover { background: var(--bg-2); }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--success); }
.caret { color: var(--text-dim); }

.tenant-switcher-menu, .user-menu-pop {
  position: absolute; top: calc(100% + 6px); left: 0; min-width: 240px;
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 6px; z-index: 60;
}
.user-menu-pop { right: 0; left: auto; min-width: 220px; }
.menu-title { padding: 8px 10px; color: var(--text-dim); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
.menu-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 10px; border-radius: var(--radius-sm); color: var(--text);
}
.menu-item:hover { background: var(--bg-3); text-decoration: none; }
.menu-item.active { background: var(--bg-3); }
.menu-item.danger { color: var(--danger); }

.avatar {
  width: 28px; height: 28px; border-radius: 50%;
  background: linear-gradient(135deg, #475569, #1e293b);
  display: grid; place-items: center; font-weight: 700; font-size: 12px;
}
.user-name { font-weight: 500; }
.role-badge {
  display: inline-block; padding: 2px 8px; border-radius: 999px;
  background: rgba(99,102,241,.12); color: var(--accent-2);
  font-size: 11px; font-weight: 600; letter-spacing: .02em;
}
.pill { padding: 4px 10px; border-radius: 999px; background: var(--bg-3); border: 1px solid var(--border); font-weight: 500; }
.platform-pill { color: var(--warn); border-color: rgba(245,158,11,.2); background: rgba(245,158,11,.08); }
.platform-pill:hover { text-decoration: none; }

.app-main { max-width: 1200px; margin: 0 auto; padding: 24px; }
.app-footer { text-align: center; padding: 24px; color: var(--muted); font-size: 12px; }

.container { max-width: 1100px; margin: 0 auto; padding: 0; display: grid; gap: 16px; }
.container.narrow { max-width: 720px; }

.page-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 8px;
}
.page-header-actions { display: flex; gap: 8px; align-items: center; }
.eyebrow { color: var(--text-dim); font-size: 12px; letter-spacing: .04em; text-transform: uppercase; margin-bottom: 4px; }

.card {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
}
.card-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 12px;
}

.grid { display: grid; gap: 16px; }
.two-col { grid-template-columns: 1fr 1fr; }
@media (max-width: 720px) { .two-col { grid-template-columns: 1fr; } }
.stat-grid { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 720px) { .stat-grid { grid-template-columns: 1fr 1fr; } }
.stat-card { display: grid; gap: 8px; }
.stat-label { color: var(--text-dim); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
.stat-value { font-size: 28px; font-weight: 700; letter-spacing: -.02em; }

.progress {
  height: 8px; background: var(--bg-3); border-radius: 999px; overflow: hidden;
  margin: 8px 0;
}
.progress-bar {
  height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border-radius: 999px;
}

/* Tables */
.table { width: 100%; border-collapse: collapse; }
.table thead th {
  text-align: left; font-size: 11px; text-transform: uppercase; letter-spacing: .06em;
  color: var(--text-dim); padding: 8px 10px; border-bottom: 1px solid var(--border);
  font-weight: 600;
}
.table tbody td, .table tbody th {
  padding: 10px; border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.table tbody tr:hover { background: rgba(255,255,255,0.02); }
.table tbody th { font-weight: 500; color: var(--text-dim); width: 200px; }
.actions { white-space: nowrap; text-align: right; }

.status-pill {
  display: inline-block; padding: 2px 8px; border-radius: 999px;
  font-size: 11px; font-weight: 600;
}
.status-active { background: rgba(16,185,129,.12); color: var(--success); }
.status-disabled { background: rgba(239,68,68,.12); color: var(--danger); }
.status-archived { background: rgba(107,114,144,.18); color: var(--text-dim); }
.status-pending { background: rgba(245,158,11,.12); color: var(--warn); }
.status-removed { background: rgba(107,114,144,.18); color: var(--text-dim); }
.status-invited { background: rgba(99,102,241,.12); color: var(--accent-2); }

/* Forms */
.form { display: grid; gap: 14px; }
.form-row { display: grid; gap: 6px; }
.form-row > span { color: var(--text-dim); font-size: 12px; font-weight: 500; }
.form-inline { display: grid; gap: 12px; grid-template-columns: 1fr 200px auto; align-items: end; }
@media (max-width: 720px) { .form-inline { grid-template-columns: 1fr; } }
.form-actions { display: flex; gap: 8px; justify-content: flex-end; }
.inline-form { display: inline-block; margin-left: 4px; }
.input-inline { display: inline-block; width: 140px; }

input[type=text], input[type=email], input[type=password], input[type=number],
input[type=url], textarea, select {
  width: 100%;
  background: var(--bg-2);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  color: var(--text);
  padding: 9px 12px;
  font-size: 14px;
  font-family: inherit;
}
input:focus, textarea:focus, select:focus {
  outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(99,102,241,.18);
}
input:disabled { color: var(--text-dim); background: var(--bg-3); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 9px 14px; border-radius: var(--radius-sm); font-weight: 600;
  font-size: 13px; border: 1px solid transparent; cursor: pointer;
  transition: transform 80ms ease, background 100ms ease;
}
.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); color: white; }
.btn-primary:hover { background: #5b5fed; }
.btn-secondary { background: var(--bg-3); color: var(--text); border-color: var(--border-strong); }
.btn-secondary:hover { background: var(--bg-2); }
.btn-danger { background: rgba(239,68,68,.16); color: var(--danger); border-color: rgba(239,68,68,.3); }
.btn-danger:hover { background: rgba(239,68,68,.22); }
.btn-block { width: 100%; }
.btn-small { padding: 5px 10px; font-size: 12px; }

/* Flash */
.flash-stack { display: grid; gap: 8px; margin-bottom: 16px; }
.flash {
  padding: 10px 14px; border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-2);
}
.flash-success { border-color: rgba(16,185,129,.35); background: rgba(16,185,129,.08); }
.flash-error   { border-color: rgba(239,68,68,.35);  background: rgba(239,68,68,.08); }
.flash-warn    { border-color: rgba(245,158,11,.35); background: rgba(245,158,11,.08); }
.flash-info    { border-color: rgba(59,130,246,.35); background: rgba(59,130,246,.08); }

/* Auth */
.auth-body {
  min-height: 100vh; display: grid; place-items: center; padding: 24px;
}
.auth-shell { width: 100%; max-width: 460px; display: grid; gap: 18px; }
.auth-brand { display: flex; align-items: center; gap: 10px; justify-content: center; }
.auth-card {
  background: var(--bg-1); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px;
  box-shadow: var(--shadow);
}
.auth-card-wide { max-width: 560px; }
.auth-title { margin-bottom: 4px; }
.auth-sub { color: var(--text-dim); margin: 4px 0 18px; }
.tenant-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.tenant-list-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px; background: var(--bg-2); border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.tenant-list-info { display: grid; gap: 4px; }
.tenant-meta { display: flex; gap: 6px; align-items: center; }

/* Pager */
.pager {
  display: flex;
  gap: 8px;
  align-items: center;
  justify-content: flex-end;
  margin-top: 12px;
  flex-wrap: wrap;
}
.pager-info { color: var(--text-dim); font-size: 13px; margin-right: auto; }

/* Summary grid (sessions, health, dashboard) */
.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

/* Error page */
.error-card {
  text-align: center; max-width: 540px; margin: 60px auto;
  padding: 40px; background: var(--bg-1); border: 1px solid var(--border);
  border-radius: var(--radius);
}
.error-status {
  font-size: 56px; font-weight: 800; color: var(--accent-2); letter-spacing: -0.04em;
}