/* ============================================================
   Browser Proxy Admin — Design System
   Premium dark theme · Glassmorphism · Inter
   ============================================================ */

/* ---- CSS Variables ---- */
:root {
  --bg-primary:    #0a0a0f;
  --bg-secondary:  #12121a;
  --bg-card:       #1a1a2e;
  --bg-hover:      #252545;
  --bg-input:      #14141f;
  --border-color:  rgba(255, 255, 255, 0.06);
  --border-focus:  rgba(79, 70, 229, 0.5);

  --accent:        #4f46e5;
  --accent-hover:  #6366f1;
  --accent-glow:   rgba(79, 70, 229, 0.25);

  --text-primary:  #e8e8ed;
  --text-secondary:#a0a0b8;
  --text-muted:    #6a6a80;

  --success:       #10b981;
  --warning:       #f59e0b;
  --danger:        #ef4444;
  --info:          #3b82f6;

  --badge-pending-bg:  rgba(107, 114, 128, 0.15);
  --badge-pending-fg:  #6b7280;
  --badge-running-bg:  rgba(59, 130, 246, 0.15);
  --badge-running-fg:  #3b82f6;
  --badge-success-bg:  rgba(16, 185, 129, 0.15);
  --badge-success-fg:  #10b981;
  --badge-failed-bg:   rgba(239, 68, 68, 0.15);
  --badge-failed-fg:   #ef4444;
  --badge-online-bg:   rgba(16, 185, 129, 0.15);
  --badge-online-fg:   #10b981;
  --badge-offline-bg:  rgba(107, 114, 128, 0.15);
  --badge-offline-fg:  #6b7280;

  --sidebar-width: 260px;
  --radius:        12px;
  --radius-sm:     8px;
  --radius-xs:     6px;
  --transition:    0.2s ease;

  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 14px; }
body {
  font-family: var(--font);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }
img { max-width: 100%; }
button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; }

/* ---- Scrollbar ---- */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.08); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.14); }

/* ============================================================
   Layout
   ============================================================ */
.layout { display: flex; min-height: 100vh; }

/* ---- Sidebar ---- */
.sidebar {
  position: fixed; top: 0; left: 0; bottom: 0;
  width: var(--sidebar-width);
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  display: flex; flex-direction: column;
  z-index: 100;
  transition: transform var(--transition);
}
.sidebar-header {
  padding: 24px 20px 20px;
  border-bottom: 1px solid var(--border-color);
}
.sidebar-logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 1.2rem; font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}
.sidebar-logo span.emoji { font-size: 1.5rem; }
.sidebar-logo .accent { color: var(--accent); }

.sidebar-nav { flex: 1; padding: 12px 10px; overflow-y: auto; }
.nav-item {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.93rem;
  transition: all var(--transition);
  margin-bottom: 2px;
  cursor: pointer;
  user-select: none;
}
.nav-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}
.nav-item.active {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 2px 12px var(--accent-glow);
}
.nav-icon { font-size: 1.15rem; width: 22px; text-align: center; flex-shrink: 0; }

.sidebar-footer {
  padding: 16px 16px 20px;
  border-top: 1px solid var(--border-color);
}
.sidebar-user {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.03);
}
.sidebar-user .user-avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--accent);
  display: flex; align-items: center; justify-content: center;
  font-weight: 600; font-size: 0.85rem; color: #fff;
  flex-shrink: 0;
}
.sidebar-user .user-info { flex: 1; min-width: 0; }
.sidebar-user .user-name {
  font-size: 0.85rem; font-weight: 600; color: var(--text-primary);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.sidebar-user .user-role { font-size: 0.75rem; color: var(--text-muted); }
.btn-logout {
  background: none; border: none; color: var(--text-muted);
  font-size: 1rem; padding: 4px; border-radius: 6px;
  transition: all var(--transition);
}
.btn-logout:hover { color: var(--danger); background: rgba(239,68,68,0.1); }

/* ---- Main ---- */
.main-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  padding: 32px 36px;
  min-height: 100vh;
  transition: margin var(--transition);
}
.page-header {
  margin-bottom: 28px;
}
.page-title {
  font-size: 1.65rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}
.page-subtitle {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 4px;
}

/* ============================================================
   Cards (Glassmorphism)
   ============================================================ */
.card {
  background: rgba(26, 26, 46, 0.6);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 24px;
  transition: all var(--transition);
}
.card:hover {
  border-color: rgba(255,255,255,0.1);
}
.card-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Stat cards */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-bottom: 28px;
}
.stat-card {
  background: rgba(26, 26, 46, 0.6);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}
.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--accent);
  opacity: 0;
  transition: opacity var(--transition);
}
.stat-card:hover {
  border-color: rgba(255,255,255,0.1);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}
.stat-card:hover::before { opacity: 1; }
.stat-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}
.stat-icon.blue   { background: rgba(59,130,246,0.12); color: var(--info); }
.stat-icon.green  { background: rgba(16,185,129,0.12); color: var(--success); }
.stat-icon.purple { background: rgba(79,70,229,0.12);  color: var(--accent); }
.stat-icon.amber  { background: rgba(245,158,11,0.12); color: var(--warning); }
.stat-value {
  font-size: 1.8rem; font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--text-primary);
}
.stat-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-top: 2px;
}

/* ============================================================
   Tables
   ============================================================ */
.table-container {
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
  background: rgba(26, 26, 46, 0.4);
}
table {
  width: 100%;
  border-collapse: collapse;
}
thead th {
  padding: 12px 16px;
  text-align: left;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  background: rgba(255,255,255,0.02);
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}
tbody td {
  padding: 12px 16px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}
tbody tr { transition: background var(--transition); }
tbody tr:nth-child(even) { background: rgba(255,255,255,0.01); }
tbody tr:hover { background: rgba(79,70,229,0.06); }
tbody tr:last-child td { border-bottom: none; }
.cell-url {
  max-width: 280px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  display: block;
  color: var(--text-primary);
}
.cell-id {
  font-family: 'SF Mono', 'Monaco', 'Inconsolata', monospace;
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ============================================================
   Badges
   ============================================================ */
.badge {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.badge::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}
.badge-pending  { background: var(--badge-pending-bg);  color: var(--badge-pending-fg); }
.badge-pending::before { background: var(--badge-pending-fg); }
.badge-running  { background: var(--badge-running-bg);  color: var(--badge-running-fg); }
.badge-running::before { background: var(--badge-running-fg); animation: pulse-dot 1.5s infinite; }
.badge-success  { background: var(--badge-success-bg);  color: var(--badge-success-fg); }
.badge-success::before { background: var(--badge-success-fg); }
.badge-failed   { background: var(--badge-failed-bg);   color: var(--badge-failed-fg); }
.badge-failed::before  { background: var(--badge-failed-fg); }
.badge-online   { background: var(--badge-online-bg);   color: var(--badge-online-fg); }
.badge-online::before  { background: var(--badge-online-fg); animation: pulse-dot 1.5s infinite; }
.badge-offline  { background: var(--badge-offline-bg);  color: var(--badge-offline-fg); }
.badge-offline::before { background: var(--badge-offline-fg); }

.badge-bool {
  padding: 2px 8px; border-radius: 4px; font-size: 0.72rem; font-weight: 600;
}
.badge-bool.on  { background: rgba(16,185,129,0.12); color: var(--success); }
.badge-bool.off { background: rgba(107,114,128,0.1);  color: var(--text-muted); }

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  border: none;
  transition: all var(--transition);
  white-space: nowrap;
  line-height: 1.4;
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 2px 8px var(--accent-glow);
}
.btn-primary:hover:not(:disabled) {
  background: var(--accent-hover);
  box-shadow: 0 4px 16px var(--accent-glow);
  transform: translateY(-1px);
}
.btn-secondary {
  background: rgba(255,255,255,0.06);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}
.btn-secondary:hover:not(:disabled) {
  background: rgba(255,255,255,0.1);
  color: var(--text-primary);
  border-color: rgba(255,255,255,0.12);
}
.btn-danger {
  background: rgba(239,68,68,0.12);
  color: var(--danger);
}
.btn-danger:hover:not(:disabled) {
  background: rgba(239,68,68,0.2);
}
.btn-sm { padding: 5px 12px; font-size: 0.8rem; border-radius: var(--radius-xs); }
.btn-icon {
  padding: 6px 8px;
  background: transparent;
  color: var(--text-muted);
  border: none;
  border-radius: var(--radius-xs);
}
.btn-icon:hover { background: rgba(255,255,255,0.06); color: var(--text-primary); }

.btn-group { display: flex; gap: 8px; flex-wrap: wrap; }

/* ============================================================
   Inputs
   ============================================================ */
.form-group { margin-bottom: 18px; }
.form-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
}
.form-help {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
}
.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.88rem;
  transition: all var(--transition);
  outline: none;
}
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.form-input::placeholder { color: var(--text-muted); }
.form-textarea { resize: vertical; min-height: 100px; }
.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236a6a80' d='M6 8.825L1.175 4 2.238 2.938 6 6.7 9.763 2.937 10.825 4z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
  cursor: pointer;
}
.form-select option { background: var(--bg-card); }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-check {
  display: flex; align-items: center; gap: 8px;
  cursor: pointer;
  font-size: 0.88rem;
  color: var(--text-secondary);
}
.form-check input[type="checkbox"] {
  width: 16px; height: 16px;
  accent-color: var(--accent);
  cursor: pointer;
}

/* ============================================================
   Filter Bar
   ============================================================ */
.filter-bar {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
  align-items: center;
}
.filter-bar .form-input,
.filter-bar .form-select {
  width: auto;
  min-width: 160px;
  padding: 8px 12px;
  font-size: 0.82rem;
}
.filter-bar .form-select { min-width: 140px; }
.filter-spacer { flex: 1; }

/* ============================================================
   Modals
   ============================================================ */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s ease;
}
.modal-overlay.active { opacity: 1; visibility: visible; }
.modal {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  width: 90%;
  max-width: 560px;
  max-height: 85vh;
  overflow-y: auto;
  transform: translateY(20px) scale(0.97);
  transition: transform 0.25s ease;
  box-shadow: 0 24px 64px rgba(0,0,0,0.5);
}
.modal-overlay.active .modal { transform: translateY(0) scale(1); }
.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color);
}
.modal-title { font-size: 1.1rem; font-weight: 600; }
.modal-close {
  background: none; border: none;
  color: var(--text-muted); font-size: 1.3rem;
  padding: 4px 8px; border-radius: 6px;
  transition: all var(--transition);
  cursor: pointer;
}
.modal-close:hover { color: var(--text-primary); background: rgba(255,255,255,0.06); }
.modal-body { padding: 24px; }
.modal-footer {
  display: flex; justify-content: flex-end; gap: 10px;
  padding: 16px 24px;
  border-top: 1px solid var(--border-color);
}

/* ============================================================
   Pagination
   ============================================================ */
.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 20px;
  padding: 12px 0;
}
.pagination-info { font-size: 0.82rem; color: var(--text-muted); }
.pagination-buttons {
  display: flex; gap: 4px;
}
.pagination-buttons .btn {
  min-width: 36px;
  justify-content: center;
  padding: 6px 12px;
  font-size: 0.8rem;
}
.pagination-buttons .btn.active {
  background: var(--accent);
  color: #fff;
}

/* ============================================================
   Toast Notifications
   ============================================================ */
.toast-container {
  position: fixed;
  top: 20px; right: 20px;
  display: flex; flex-direction: column;
  gap: 10px;
  z-index: 2000;
  pointer-events: none;
}
.toast {
  padding: 14px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
  color: #fff;
  pointer-events: all;
  min-width: 280px;
  max-width: 420px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
  display: flex; align-items: flex-start; gap: 10px;
  animation: toast-in 0.35s ease;
  border: 1px solid rgba(255,255,255,0.06);
  backdrop-filter: blur(12px);
}
.toast.toast-out { animation: toast-out 0.3s ease forwards; }
.toast-success { background: rgba(16, 185, 129, 0.9); }
.toast-error   { background: rgba(239, 68, 68, 0.9); }
.toast-warning { background: rgba(245, 158, 11, 0.9); }
.toast-info    { background: rgba(59, 130, 246, 0.9); }
.toast-icon { font-size: 1.1rem; flex-shrink: 0; margin-top: 1px; }
.toast-message { flex: 1; }
.toast-close {
  background: none; border: none; color: rgba(255,255,255,0.7);
  cursor: pointer; padding: 2px; font-size: 1.1rem;
  flex-shrink: 0;
}
.toast-close:hover { color: #fff; }

@keyframes toast-in {
  from { opacity: 0; transform: translateX(40px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes toast-out {
  from { opacity: 1; transform: translateX(0); }
  to   { opacity: 0; transform: translateX(40px); }
}

/* ============================================================
   Loading
   ============================================================ */
.spinner {
  display: inline-block;
  width: 20px; height: 20px;
  border: 2px solid rgba(255,255,255,0.15);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
.spinner-lg { width: 36px; height: 36px; border-width: 3px; }
@keyframes spin { to { transform: rotate(360deg); } }

.loading-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  gap: 16px;
  color: var(--text-muted);
  font-size: 0.88rem;
}

/* ============================================================
   Empty State
   ============================================================ */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  text-align: center;
}
.empty-state-icon { font-size: 3rem; margin-bottom: 16px; opacity: 0.4; }
.empty-state-title {
  font-size: 1.1rem; font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
}
.empty-state-desc { font-size: 0.85rem; color: var(--text-muted); max-width: 360px; }

/* ============================================================
   Login Page
   ============================================================ */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 20px;
  position: relative;
  overflow: hidden;
}
.login-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(79,70,229,0.12) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(59,130,246,0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 80%, rgba(16,185,129,0.06) 0%, transparent 50%);
  animation: bg-shift 12s ease-in-out infinite alternate;
}
@keyframes bg-shift {
  0% { opacity: 0.6; transform: scale(1); }
  100% { opacity: 1; transform: scale(1.1); }
}
.login-card {
  position: relative;
  width: 100%;
  max-width: 400px;
  padding: 40px;
  background: rgba(26, 26, 46, 0.7);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  box-shadow: 0 24px 64px rgba(0,0,0,0.4);
}
.login-logo {
  text-align: center;
  margin-bottom: 32px;
}
.login-logo .emoji { font-size: 2.5rem; display: block; margin-bottom: 12px; }
.login-logo h1 {
  font-size: 1.5rem; font-weight: 700; letter-spacing: -0.02em;
}
.login-logo p {
  color: var(--text-muted); font-size: 0.88rem; margin-top: 4px;
}
.login-error {
  background: rgba(239,68,68,0.1);
  border: 1px solid rgba(239,68,68,0.2);
  color: var(--danger);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  margin-bottom: 16px;
  display: none;
}
.login-error.show { display: block; }
.login-card .btn-primary {
  width: 100%;
  padding: 12px;
  font-size: 0.95rem;
  justify-content: center;
}

/* ============================================================
   Detail / Expand Row
   ============================================================ */
.expand-row td {
  padding: 0 !important;
  background: rgba(26, 26, 46, 0.5);
}
.expand-content {
  padding: 20px 24px;
}
.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 16px;
}
.detail-item label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 4px;
}
.detail-item span {
  font-size: 0.88rem;
  color: var(--text-primary);
  word-break: break-all;
}

/* Screenshot preview */
.screenshot-preview {
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  max-width: 600px;
  max-height: 400px;
  object-fit: contain;
  cursor: pointer;
}

/* Screenshot modal */
.screenshot-modal img {
  max-width: 100%;
  border-radius: var(--radius-sm);
}

/* ============================================================
   Node Cards
   ============================================================ */
.nodes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}
.node-card {
  background: rgba(26, 26, 46, 0.6);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 22px;
  transition: all 0.3s ease;
  position: relative;
}
.node-card:hover {
  border-color: rgba(255,255,255,0.1);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}
.node-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 16px;
}
.node-name {
  font-size: 1rem; font-weight: 600; color: var(--text-primary);
  display: flex; align-items: center; gap: 8px;
}
.node-meta {
  display: grid; grid-template-columns: 1fr 1fr; gap: 12px;
}
.node-meta-item { }
.node-meta-label {
  font-size: 0.72rem; font-weight: 600;
  color: var(--text-muted); text-transform: uppercase;
  letter-spacing: 0.04em; margin-bottom: 2px;
}
.node-meta-value { font-size: 0.88rem; color: var(--text-secondary); }

/* ============================================================
   Settings
   ============================================================ */
.settings-group {
  margin-bottom: 32px;
}
.settings-group-title {
  font-size: 1.05rem; font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-color);
  display: flex; align-items: center; gap: 8px;
}
.config-item {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 16px;
  align-items: start;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255,255,255,0.03);
}
.config-item:last-child { border-bottom: none; }
.config-key {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  font-family: 'SF Mono', 'Monaco', 'Inconsolata', monospace;
}
.config-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
  font-family: var(--font);
}

/* ============================================================
   Confirm Dialog
   ============================================================ */
.confirm-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  text-align: center;
  padding: 20px 0;
  line-height: 1.7;
}
.confirm-text strong { color: var(--text-primary); }

/* ============================================================
   Clickable Row
   ============================================================ */
tr.clickable { cursor: pointer; }

/* ============================================================
   Page Fade-in
   ============================================================ */
.page-fade-in {
  animation: fadeIn 0.3s ease;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   Tabs
   ============================================================ */
.tabs {
  display: flex; gap: 0; margin-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
}
.tab-btn {
  padding: 10px 20px;
  background: none; border: none;
  color: var(--text-muted);
  font-size: 0.88rem; font-weight: 500;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: all var(--transition);
}
.tab-btn:hover { color: var(--text-primary); }
.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ============================================================
   Request Table (nested)
   ============================================================ */
.requests-table { margin-top: 12px; }
.requests-table table { font-size: 0.82rem; }
.requests-table th { font-size: 0.72rem; }
.requests-table td { padding: 8px 12px; font-size: 0.82rem; }
.tracking-badge {
  padding: 2px 8px; border-radius: 4px; font-size: 0.7rem; font-weight: 600;
  background: rgba(245,158,11,0.12); color: var(--warning);
}

/* ============================================================
   Responsive — Tablets
   ============================================================ */
@media (max-width: 1024px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; padding: 20px; }
  .mobile-header {
    display: flex !important;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
  }
  .hamburger {
    background: none; border: none;
    color: var(--text-primary); font-size: 1.5rem;
    padding: 4px;
    cursor: pointer;
  }
  .mobile-overlay {
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 99;
    display: none;
  }
  .mobile-overlay.active { display: block; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .config-item { grid-template-columns: 1fr; }
  .detail-grid { grid-template-columns: 1fr; }
}

@media (min-width: 1025px) {
  .mobile-header { display: none !important; }
  .mobile-overlay { display: none !important; }
}

/* ---- Utility ---- */
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.mt-12 { margin-top: 12px; }
.mt-20 { margin-top: 20px; }
.mb-12 { margin-bottom: 12px; }
.mb-20 { margin-bottom: 20px; }
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.text-sm { font-size: 0.82rem; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.mono { font-family: 'SF Mono', 'Monaco', 'Inconsolata', monospace; font-size: 0.85em; }