/* Admin Panel — Design Tokens + Styles */

:root {
  --font-body: 'Geist', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', ui-monospace, monospace;

  --bg: #0a0e14;
  --bg-card: #111822;
  --bg-elevated: #182030;
  --bg-hover: #1a2536;
  --bg-input: #0d1219;
  --border: rgba(255,255,255,0.06);
  --border-hi: rgba(255,255,255,0.12);

  --text: #e2e8f0;
  --text-mid: #8494a7;
  --text-lo: #4a5568;
  --text-hi: #f7fafc;

  --accent: #3b82f6;
  --accent-soft: rgba(59,130,246,0.12);
  --green: #22c55e;
  --green-soft: rgba(34,197,94,0.12);
  --amber: #f59e0b;
  --amber-soft: rgba(245,158,11,0.12);
  --red: #ef4444;
  --red-soft: rgba(239,68,68,0.12);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 18px;

  --sidebar-w: 220px;
  --header-h: 0px;

  --shadow: 0 2px 12px rgba(0,0,0,0.3);
}

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

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* ── Login ── */

.login-view {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--bg);
}
.login-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 48px 40px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  max-width: 380px;
  width: 100%;
}
.login-logo {
  width: 64px; height: 64px;
  display: grid; place-items: center;
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: var(--radius-lg);
}
.login-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-hi);
  letter-spacing: -0.02em;
}
.login-subtitle {
  font-size: 14px;
  color: var(--text-mid);
}
.login-hint {
  font-size: 12px;
  color: var(--text-lo);
  text-align: center;
}
.tg-login-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 28px;
  background: #2AABEE;
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
}
.tg-login-btn:hover { background: #229ED9; }
.tg-login-btn:active { transform: scale(0.97); }

/* ── Layout ── */

.main-view {
  display: flex;
  min-height: 100vh;
}
.sidebar {
  position: fixed;
  top: 0; left: 0; bottom: 0;
  width: var(--sidebar-w);
  background: var(--bg-card);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 20px 12px;
  z-index: 100;
}
.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 4px 12px 20px;
  font-size: 15px;
  font-weight: 700;
  color: var(--text-hi);
  letter-spacing: -0.01em;
}
.sidebar-brand svg { color: var(--accent); }
.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
}
.sidebar-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background: none;
  border: none;
  border-radius: var(--radius-md);
  color: var(--text-mid);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
}
.sidebar-btn svg { width: 18px; height: 18px; flex-shrink: 0; }
.sidebar-btn:hover { background: var(--bg-hover); color: var(--text); }
.sidebar-btn.active { background: var(--accent-soft); color: var(--accent); }
.sidebar-user {
  padding: 12px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-mid);
  display: flex;
  align-items: center;
  gap: 8px;
}
.sidebar-user-avatar {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  display: grid; place-items: center;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
}
.sidebar-user-name { color: var(--text); font-weight: 600; }
.sidebar-user-logout {
  margin-left: auto;
  background: none; border: none;
  color: var(--text-lo);
  cursor: pointer;
  font-size: 11px;
  font-family: var(--font-body);
}
.sidebar-user-logout:hover { color: var(--red); }

.content {
  margin-left: var(--sidebar-w);
  flex: 1;
  padding: 32px;
  max-width: 1200px;
}

/* ── Page headers ── */

.page-head {
  margin-bottom: 24px;
}
.page-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-hi);
  letter-spacing: -0.02em;
}
.page-subtitle {
  font-size: 13px;
  color: var(--text-mid);
  margin-top: 4px;
}

/* ── Stat cards ── */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin-bottom: 28px;
}
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.stat-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-lo);
}
.stat-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-hi);
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}
.stat-value .stat-sub {
  font-size: 13px;
  color: var(--text-mid);
  font-weight: 500;
  margin-left: 4px;
}

/* ── Data tables ── */

.table-toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}
.search-input {
  flex: 1;
  max-width: 320px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 9px 14px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 13px;
  outline: none;
  transition: border-color 0.15s;
}
.search-input::placeholder { color: var(--text-lo); }
.search-input:focus { border-color: var(--accent); }

.toolbar-btn {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 9px 16px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.15s;
}
.toolbar-btn:hover { background: var(--bg-hover); border-color: var(--border-hi); }
.toolbar-btn svg { width: 14px; height: 14px; }

.data-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.data-table th {
  text-align: left;
  padding: 12px 16px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-lo);
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
}
.data-table td {
  padding: 12px 16px;
  font-size: 13px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--bg-hover); }
.data-table tr { cursor: pointer; transition: background 0.1s; }

.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 100px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.badge.active { background: var(--green-soft); color: var(--green); }
.badge.expired { background: var(--red-soft); color: var(--red); }
.badge.trial { background: var(--amber-soft); color: var(--amber); }
.badge.admin { background: var(--accent-soft); color: var(--accent); }
.badge.none { background: rgba(255,255,255,0.04); color: var(--text-lo); }

.mono { font-family: var(--font-mono); font-size: 12px; color: var(--text-mid); }

/* ── User detail panel ── */

.detail-panel {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  width: 480px;
  background: var(--bg-card);
  border-left: 1px solid var(--border);
  z-index: 200;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.25s cubic-bezier(0.25,1,0.5,1);
  box-shadow: -8px 0 32px rgba(0,0,0,0.3);
}
.detail-panel.open { transform: translateX(0); }
.detail-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 199;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}
.detail-overlay.open { opacity: 1; pointer-events: auto; }

.detail-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}
.detail-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-hi);
}
.detail-close {
  background: none; border: none;
  color: var(--text-lo);
  cursor: pointer;
  font-size: 18px;
  line-height: 1;
  padding: 4px;
}
.detail-close:hover { color: var(--text); }

.detail-body {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.detail-section-title {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-lo);
  margin-bottom: 8px;
}
.detail-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  font-size: 13px;
}
.detail-row-label { color: var(--text-mid); }
.detail-row-value { color: var(--text-hi); font-weight: 500; }

.detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.action-btn {
  padding: 8px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}
.action-btn:hover { background: var(--bg-hover); border-color: var(--border-hi); }
.action-btn.primary { background: var(--accent); color: #fff; border-color: transparent; }
.action-btn.primary:hover { opacity: 0.9; }
.action-btn.danger { color: var(--red); border-color: var(--red-soft); }
.action-btn.danger:hover { background: var(--red-soft); }
.action-btn:disabled { opacity: 0.4; cursor: not-allowed; }

.device-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  background: var(--bg);
  border-radius: var(--radius-md);
  font-size: 12px;
}
.device-row .mono { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; }
.device-revoke {
  background: none;
  border: 1px solid var(--red-soft);
  color: var(--red);
  padding: 4px 10px;
  border-radius: 100px;
  font-size: 10px;
  font-weight: 600;
  font-family: var(--font-body);
  cursor: pointer;
}
.device-revoke:hover { background: var(--red-soft); }

/* ── Server cards ── */

.server-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 12px;
}
.server-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.server-card-head {
  display: flex;
  align-items: center;
  gap: 10px;
}
.server-pulse {
  width: 8px; height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.server-pulse.up { background: var(--green); box-shadow: 0 0 6px var(--green); }
.server-pulse.down { background: var(--red); box-shadow: 0 0 6px var(--red); }
.server-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-hi);
}
.server-latency {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--green);
}
.server-latency.slow { color: var(--amber); }
.server-latency.down { color: var(--red); }

/* ── Prompt dialog ── */

.prompt-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
}
.prompt-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  min-width: 340px;
  max-width: 420px;
}
.prompt-card h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-hi);
  margin-bottom: 12px;
}
.prompt-card input {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 14px;
  outline: none;
  margin-bottom: 16px;
}
.prompt-card input:focus { border-color: var(--accent); }
.prompt-btns {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

/* ── Loading / Empty ── */

.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px;
  color: var(--text-lo);
  font-size: 14px;
}
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-lo);
  font-size: 14px;
}

/* ── Responsive ── */

@media (max-width: 768px) {
  .sidebar { display: none; }
  .content { margin-left: 0; padding: 20px 16px; }
  .detail-panel { width: 100%; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}