/* =========================================================
   WeChat Commercial RAG & Paid Broadcast Bot - Design System
   Sleek Dark Glassmorphism Aesthetics
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Noto+Sans+SC:wght@300;400;500;700&display=swap');

:root {
  --bg-main: #0b0f19;
  --bg-surface: rgba(17, 24, 39, 0.75);
  --bg-surface-hover: rgba(30, 41, 59, 0.85);
  --bg-card: rgba(19, 27, 44, 0.65);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(99, 102, 241, 0.5);

  /* Primary Brand Accents */
  --primary: #6366f1;
  --primary-glow: rgba(99, 102, 241, 0.35);
  --secondary: #06b6d4;
  --accent-cyan: #22d3ee;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;
  --accent-purple: #a855f7;

  /* Typography Colors */
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  /* Dimensions & Curves */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 9999px;

  /* Transitions */
  --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
  font-family: 'Plus Jakarta Sans', 'Noto Sans SC', sans-serif;
  background-color: var(--bg-main);
  background-image: 
    radial-gradient(at 15% 15%, rgba(99, 102, 241, 0.12) 0px, transparent 50%),
    radial-gradient(at 85% 20%, rgba(6, 182, 212, 0.10) 0px, transparent 50%),
    radial-gradient(at 50% 80%, rgba(168, 85, 247, 0.08) 0px, transparent 50%);
  background-attachment: fixed;
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  overflow-x: hidden;
}

/* =========================================================
   Sidebar Layout
   ========================================================= */
.sidebar {
  width: 270px;
  background: rgba(11, 15, 25, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-right: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  height: 100vh;
  position: sticky;
  top: 0;
  z-index: 50;
}

.brand-box {
  padding: 24px 22px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--border-subtle);
}

.brand-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #6366f1 0%, #06b6d4 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 20px var(--primary-glow);
  font-size: 22px;
}

.brand-info h1 {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(to right, #ffffff, #cbd5e1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-info p {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  margin-top: 2px;
}

.nav-menu {
  flex: 1;
  padding: 20px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  overflow-y: auto;
}

.nav-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 10px 12px 6px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 11px 14px;
  border-radius: var(--radius-md);
  color: var(--text-muted);
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 500;
  transition: var(--transition-fast);
  position: relative;
}

.nav-item:hover {
  background: var(--bg-surface-hover);
  color: var(--text-main);
  transform: translateX(3px);
}

.nav-item.active {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.22) 0%, rgba(6, 182, 212, 0.15) 100%);
  color: #fff;
  border: 1px solid rgba(99, 102, 241, 0.4);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.nav-item.active::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18%;
  bottom: 18%;
  width: 4px;
  background: var(--primary);
  border-radius: 0 4px 4px 0;
  box-shadow: 0 0 10px var(--primary);
}

.nav-icon {
  font-size: 18px;
  width: 22px;
  text-align: center;
}

.device-badge {
  margin: 16px 14px;
  padding: 14px;
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.status-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background-color: var(--accent-emerald);
  box-shadow: 0 0 10px var(--accent-emerald);
  animation: pulse 2s infinite;
}

.status-dot.offline {
  background-color: var(--accent-rose);
  box-shadow: 0 0 8px var(--accent-rose);
  animation: none;
}

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { transform: scale(1.1); box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

/* =========================================================
   Main Content Layout
   ========================================================= */
.main-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.top-bar {
  height: 72px;
  padding: 0 32px;
  border-bottom: 1px solid var(--border-subtle);
  background: rgba(11, 15, 25, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.page-title h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

.page-title p {
  font-size: 12px;
  color: var(--text-muted);
}

.top-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.content-container {
  padding: 28px 32px 48px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 26px;
}

/* =========================================================
   Glass Cards & Metric Grids
   ========================================================= */
.glass-card {
  background: var(--bg-surface);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
  transition: var(--transition-smooth);
}

.glass-card:hover {
  border-color: rgba(255, 255, 255, 0.14);
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.metric-card {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 130px;
}

.metric-card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 90px;
  height: 90px;
  background: radial-gradient(circle, var(--metric-color, var(--primary-glow)) 0%, transparent 70%);
  pointer-events: none;
}

.metric-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.metric-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
}

.metric-icon-box {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.metric-value {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: #fff;
  margin: 10px 0 4px;
}

.metric-sub {
  font-size: 11.5px;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* =========================================================
   Buttons & Inputs
   ========================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 18px;
  border-radius: var(--radius-md);
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: var(--transition-fast);
}

.btn-primary {
  background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
  color: #fff;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #4f46e5 0%, #4338ca 100%);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.55);
  transform: translateY(-1px);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-main);
  border: 1px solid var(--border-subtle);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
}

.btn-success {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: #fff;
}

.btn-danger {
  background: rgba(244, 63, 94, 0.15);
  color: #f43f5e;
  border: 1px solid rgba(244, 63, 94, 0.3);
}

.btn-danger:hover {
  background: #f43f5e;
  color: #fff;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 12px;
  border-radius: var(--radius-sm);
}

.form-control {
  width: 100%;
  padding: 10px 14px;
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: #fff;
  font-size: 13.5px;
  outline: none;
  transition: var(--transition-fast);
}

.form-control:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.18);
  background: rgba(15, 23, 42, 0.95);
}

textarea.form-control {
  resize: vertical;
  min-height: 80px;
}

/* =========================================================
   Badges & Tags
   ========================================================= */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.badge-supply { background: rgba(16, 185, 129, 0.15); color: #10b981; border: 1px solid rgba(16, 185, 129, 0.3); }
.badge-demand { background: rgba(6, 182, 212, 0.15); color: #06b6d4; border: 1px solid rgba(6, 182, 212, 0.3); }
.badge-recruitment { background: rgba(168, 85, 247, 0.15); color: #c084fc; border: 1px solid rgba(168, 85, 247, 0.3); }
.badge-secondhand { background: rgba(245, 158, 11, 0.15); color: #fbbf24; border: 1px solid rgba(245, 158, 11, 0.3); }
.badge-vip { background: linear-gradient(135deg, #f59e0b, #d97706); color: #fff; }
.badge-advertiser { background: linear-gradient(135deg, #8b5cf6, #6d28d9); color: #fff; }
.badge-admin { background: linear-gradient(135deg, #ef4444, #b91c1c); color: #fff; }
.badge-normal { background: rgba(255, 255, 255, 0.08); color: var(--text-muted); }

/* =========================================================
   Tables & Data Presentation
   ========================================================= */
.table-container {
  overflow-x: auto;
}

.custom-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 13.5px;
}

.custom-table th {
  background: rgba(15, 23, 42, 0.6);
  color: var(--text-dim);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 0.06em;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-subtle);
  text-align: left;
}

.custom-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-muted);
  vertical-align: middle;
}

.custom-table tbody tr {
  transition: var(--transition-fast);
}

.custom-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

.custom-table tbody tr.pinned {
  background: rgba(99, 102, 241, 0.06);
}

/* =========================================================
   Modals & Toast Alerts
   ========================================================= */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.modal-backdrop.show {
  opacity: 1;
  pointer-events: auto;
}

.modal-dialog {
  background: #111827;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  width: 90%;
  max-width: 580px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  transform: scale(0.95);
  transition: transform 0.25s ease;
}

.modal-backdrop.show .modal-dialog {
  transform: scale(1);
}

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 {
  font-size: 17px;
  font-weight: 700;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 20px;
  cursor: pointer;
  transition: color 0.2s;
}

.modal-close:hover {
  color: #fff;
}

.modal-body {
  padding: 24px;
}

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

/* Toast Container */
#toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 9999;
}

.toast {
  padding: 12px 18px;
  border-radius: var(--radius-md);
  font-size: 13.5px;
  font-weight: 500;
  color: #fff;
  background: rgba(17, 24, 39, 0.95);
  border: 1px solid var(--border-subtle);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  gap: 10px;
  animation: slideIn 0.3s ease;
}

.toast.success { border-left: 4px solid var(--accent-emerald); }
.toast.error { border-left: 4px solid var(--accent-rose); }
.toast.info { border-left: 4px solid var(--primary); }

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}