/* ============================================
   WA PROSPECT — Premium SaaS UI
   Inspired by Linear, Stripe, Vercel
   ============================================ */

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

/* ============================================
   CSS VARIABLES
   ============================================ */
:root {
  --bg-deep: #0B0F19;
  --bg-card: rgba(17, 24, 39, 0.7);
  --bg-card-solid: #111827;
  --bg-elevated: rgba(23, 32, 49, 0.8);
  --bg-input: rgba(15, 23, 42, 0.9);
  --bg-sidebar: rgba(13, 18, 30, 0.95);
  --border: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(255, 255, 255, 0.12);
  --border-focus: rgba(37, 211, 102, 0.5);

  --primary: #25D366;
  --primary-dark: #1da851;
  --primary-glow: rgba(37, 211, 102, 0.15);
  --primary-glow-strong: rgba(37, 211, 102, 0.3);

  --accent-blue: #3b82f6;
  --accent-purple: #8b5cf6;
  --accent-cyan: #06b6d4;

  --text: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --danger: #ef4444;
  --danger-glow: rgba(239, 68, 68, 0.15);
  --warning: #f59e0b;
  --warning-glow: rgba(245, 158, 11, 0.15);
  --success: #25D366;
  --success-glow: rgba(37, 211, 102, 0.15);
  --info: #3b82f6;
  --info-glow: rgba(59, 130, 246, 0.15);

  --glass-blur: 20px;
  --glass-bg: rgba(17, 24, 39, 0.6);
  --glass-border: rgba(255, 255, 255, 0.08);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 20px rgba(37, 211, 102, 0.1);

  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ============================================
   RESET & BASE
   ============================================ */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-deep);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow: hidden;
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.2); }

::selection {
  background: var(--primary-glow-strong);
  color: var(--text);
}

/* ============================================
   APP LAYOUT
   ============================================ */
.app {
  display: flex;
  min-height: 100vh;
  position: relative;
}

/* ============================================
   SIDEBAR
   ============================================ */
.sidebar {
  width: 260px;
  background: var(--bg-sidebar);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border-right: 1px solid var(--border);
  padding: 0;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  position: relative;
  z-index: 10;
  transition: width var(--transition-base);
}

.sidebar::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 1px;
  height: 100%;
  background: linear-gradient(to bottom,
    transparent,
    var(--primary-glow) 30%,
    var(--primary-glow) 70%,
    transparent
  );
  opacity: 0.5;
}

.sidebar-header {
  padding: 24px 20px 20px;
  border-bottom: 1px solid var(--border);
}

.sidebar-header h1 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 10px;
  letter-spacing: -0.02em;
}

.sidebar-header h1 svg {
  filter: drop-shadow(0 0 8px rgba(37, 211, 102, 0.4));
  transition: filter var(--transition-base);
}

.sidebar-header h1:hover svg {
  filter: drop-shadow(0 0 12px rgba(37, 211, 102, 0.6));
}

.sidebar-header h1 span {
  background: linear-gradient(135deg, var(--primary), #4ade80);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Nav items */
.nav-item {
  padding: 11px 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-muted);
  transition: all var(--transition-base);
  font-size: 13.5px;
  font-weight: 500;
  position: relative;
  margin: 2px 8px;
  border-radius: var(--radius-sm);
  user-select: none;
}

.nav-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%) scaleY(0);
  width: 3px;
  height: 60%;
  background: var(--primary);
  border-radius: 0 2px 2px 0;
  transition: transform var(--transition-spring);
  box-shadow: 0 0 8px var(--primary-glow-strong);
}

.nav-item:hover {
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.03);
}

.nav-item.active {
  color: var(--text);
  background: rgba(37, 211, 102, 0.08);
}

.nav-item.active::before {
  transform: translateY(-50%) scaleY(1);
}

.nav-item svg,
.nav-item i {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  transition: transform var(--transition-base), color var(--transition-base);
}

.nav-item:hover svg,
.nav-item:hover i {
  transform: scale(1.1);
  color: var(--text-secondary);
}

.nav-item.active svg,
.nav-item.active i {
  color: var(--primary);
  filter: drop-shadow(0 0 4px var(--primary-glow-strong));
}

/* ============================================
   MAIN CONTENT
   ============================================ */
.main {
  flex: 1;
  padding: 32px 40px;
  overflow-y: auto;
  max-height: 100vh;
  position: relative;
  background:
    radial-gradient(ellipse at 20% 0%, rgba(37, 211, 102, 0.03) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 100%, rgba(59, 130, 246, 0.02) 0%, transparent 50%),
    var(--bg-deep);
}

/* Page visibility & transitions */
.page {
  display: none;
  animation: pageEnter 0.4s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.page.active {
  display: block;
}

@keyframes pageEnter {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-title {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 28px;
  color: var(--text);
  letter-spacing: -0.03em;
  position: relative;
  display: inline-block;
}

.page-title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 40px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), transparent);
  border-radius: 2px;
}

/* ============================================
   CARDS — Glassmorphism
   ============================================ */
.card {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 24px;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg,
    transparent,
    rgba(255, 255, 255, 0.06) 30%,
    rgba(255, 255, 255, 0.06) 70%,
    transparent
  );
}

.card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.card-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 18px;
  color: var(--text);
  letter-spacing: -0.01em;
}

/* ============================================
   STAT CARDS — Dashboard
   ============================================ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}

.stat-card {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  text-align: center;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  cursor: default;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--primary-glow-strong), transparent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.stat-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow:
    var(--shadow-lg),
    0 0 30px var(--primary-glow);
}

.stat-card:hover::before {
  opacity: 1;
}

.stat-value {
  font-size: 36px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), #4ade80);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
  letter-spacing: -0.03em;
  transition: transform var(--transition-spring);
}

.stat-card:hover .stat-value {
  transform: scale(1.05);
}

.stat-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  margin-top: 8px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ============================================
   FORMS
   ============================================ */
.form-group {
  margin-bottom: 18px;
  position: relative;
}

.form-group label {
  display: block;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
  letter-spacing: 0.01em;
  transition: color var(--transition-fast);
}

.form-group:focus-within label {
  color: var(--primary);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 13.5px;
  font-family: 'Inter', sans-serif;
  outline: none;
  transition: all var(--transition-base);
}

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

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow), 0 0 16px var(--primary-glow);
  background: rgba(15, 23, 42, 1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
  opacity: 0.6;
}

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

.form-group select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2394a3b8' viewBox='0 0 24 24'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

.form-group select option {
  background: var(--bg-card-solid);
  color: var(--text);
}

.form-group small {
  display: block;
  margin-top: 5px;
  font-size: 11.5px;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  padding: 9px 18px;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  font-family: 'Inter', sans-serif;
  transition: all var(--transition-base);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  position: relative;
  overflow: hidden;
  user-select: none;
  letter-spacing: 0.01em;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(255,255,255,0.1), transparent);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.btn:hover::after {
  opacity: 1;
}

.btn:active {
  transform: scale(0.97);
  transition: transform 0.1s;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  box-shadow: 0 2px 8px rgba(37, 211, 102, 0.25);
}

.btn-primary:hover {
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.35);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0) scale(0.97);
}

.btn-danger {
  background: linear-gradient(135deg, var(--danger), #dc2626);
  color: #fff;
  box-shadow: 0 2px 8px rgba(239, 68, 68, 0.2);
}

.btn-danger:hover {
  box-shadow: 0 4px 16px rgba(239, 68, 68, 0.3);
  transform: translateY(-1px);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--border-hover);
  color: var(--text);
}

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

.btn-group {
  display: flex;
  gap: 10px;
  margin-top: 16px;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* ============================================
   TABLES
   ============================================ */
.table-container {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
}

th, td {
  padding: 12px 16px;
  text-align: left;
  font-size: 13px;
}

th {
  color: var(--text-muted);
  font-weight: 500;
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
}

td {
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
  transition: background var(--transition-fast);
}

tr {
  transition: all var(--transition-fast);
}

tbody tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

/* Row stagger animation */
tbody tr {
  opacity: 0;
  animation: rowSlideIn 0.3s ease forwards;
}

@keyframes rowSlideIn {
  from {
    opacity: 0;
    transform: translateX(-8px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

tbody tr:nth-child(1) { animation-delay: 0.02s; }
tbody tr:nth-child(2) { animation-delay: 0.04s; }
tbody tr:nth-child(3) { animation-delay: 0.06s; }
tbody tr:nth-child(4) { animation-delay: 0.08s; }
tbody tr:nth-child(5) { animation-delay: 0.10s; }
tbody tr:nth-child(6) { animation-delay: 0.12s; }
tbody tr:nth-child(7) { animation-delay: 0.14s; }
tbody tr:nth-child(8) { animation-delay: 0.16s; }
tbody tr:nth-child(9) { animation-delay: 0.18s; }
tbody tr:nth-child(10) { animation-delay: 0.20s; }
tbody tr:nth-child(n+11) { animation-delay: 0.22s; }

/* Row action buttons: subtle on hover */
tbody tr .btn-sm {
  opacity: 0.6;
  transition: all var(--transition-fast);
}

tbody tr:hover .btn-sm {
  opacity: 1;
}

/* ============================================
   BADGES
   ============================================ */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: all var(--transition-fast);
}

.badge-success {
  background: var(--success-glow);
  color: var(--success);
  border: 1px solid rgba(37, 211, 102, 0.2);
}

.badge-warning {
  background: var(--warning-glow);
  color: var(--warning);
  border: 1px solid rgba(245, 158, 11, 0.2);
}

.badge-danger {
  background: var(--danger-glow);
  color: var(--danger);
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.badge-info {
  background: var(--info-glow);
  color: var(--info);
  border: 1px solid rgba(59, 130, 246, 0.2);
}

/* ============================================
   CONNECTION STATUS
   ============================================ */
.connection-status {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  border-radius: var(--radius-md);
  margin-bottom: 20px;
  font-size: 13px;
  font-weight: 500;
  transition: all var(--transition-base);
}

.connection-status.connected {
  background: rgba(37, 211, 102, 0.08);
  border: 1px solid rgba(37, 211, 102, 0.2);
  color: var(--success);
}

.connection-status.disconnected {
  background: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.2);
  color: var(--danger);
}

.connection-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  position: relative;
  flex-shrink: 0;
}

.connection-status.connected .connection-dot {
  animation: pulse-glow 2s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.4);
  }
  50% {
    box-shadow: 0 0 0 6px rgba(37, 211, 102, 0);
  }
}

/* ============================================
   TOAST NOTIFICATIONS
   ============================================ */
.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  padding: 14px 20px;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 500;
  font-family: 'Inter', sans-serif;
  animation: toastSlideIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
  max-width: 400px;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 8px;
}

.toast-success {
  background: rgba(37, 211, 102, 0.9);
  color: #fff;
}

.toast-error {
  background: rgba(239, 68, 68, 0.9);
  color: #fff;
}

.toast-info {
  background: rgba(59, 130, 246, 0.9);
  color: #fff;
}

.toast.toast-exit {
  animation: toastSlideOut 0.3s ease forwards;
}

@keyframes toastSlideIn {
  from {
    transform: translateX(100%) scale(0.8);
    opacity: 0;
  }
  to {
    transform: translateX(0) scale(1);
    opacity: 1;
  }
}

@keyframes toastSlideOut {
  from {
    transform: translateX(0) scale(1);
    opacity: 1;
  }
  to {
    transform: translateX(100%) scale(0.8);
    opacity: 0;
  }
}

/* ============================================
   MODAL
   ============================================ */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  z-index: 9000;
  justify-content: center;
  align-items: center;
}

.modal-overlay.active {
  display: flex;
  animation: fadeIn 0.2s ease;
}

.modal {
  background: var(--bg-card-solid);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 28px;
  width: 90%;
  max-width: 500px;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  animation: modalEnter 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes modalEnter {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(10px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.modal-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

/* ============================================
   INFO BOX
   ============================================ */
.info-box {
  background: rgba(59, 130, 246, 0.06);
  border: 1px solid rgba(59, 130, 246, 0.15);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  margin-bottom: 24px;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
  position: relative;
  overflow: hidden;
}

.info-box::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(to bottom, var(--accent-blue), var(--accent-purple));
  border-radius: 2px 0 0 2px;
}

.info-box strong {
  display: block;
  margin-bottom: 8px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text);
}

.info-box code {
  background: rgba(255, 255, 255, 0.08);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 12px;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  color: var(--accent-cyan);
}

.info-box ol, .info-box ul {
  padding-left: 20px;
  margin-top: 8px;
}

.info-box li {
  margin-bottom: 4px;
}

.info-box a {
  color: var(--primary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-fast);
}

.info-box a:hover {
  border-color: var(--primary);
}

/* ============================================
   POOL PROGRESS BAR
   ============================================ */
.pool-progress {
  width: 100%;
  height: 4px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 2px;
  overflow: hidden;
  margin-top: 4px;
}

.pool-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), #4ade80);
  border-radius: 2px;
  transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.pool-progress-bar::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

/* ============================================
   CHECKBOX LIST (contacts)
   ============================================ */
.contact-check-list {
  max-height: 300px;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 6px;
  background: rgba(0, 0, 0, 0.15);
}

.contact-check-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: 13px;
}

.contact-check-item:hover {
  background: rgba(255, 255, 255, 0.04);
}

.contact-check-item input[type="checkbox"] {
  accent-color: var(--primary);
  width: 16px;
  height: 16px;
  cursor: pointer;
}

.contact-check-item[data-contacted="true"] {
  opacity: 0.5;
}

.contact-check-item label {
  cursor: pointer;
  flex: 1;
  font-size: 13px;
}

/* ============================================
   LOADING SKELETON
   ============================================ */
.skeleton {
  background: linear-gradient(90deg,
    rgba(255,255,255,0.04) 25%,
    rgba(255,255,255,0.08) 50%,
    rgba(255,255,255,0.04) 75%
  );
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s ease-in-out infinite;
  border-radius: var(--radius-sm);
}

@keyframes skeleton-loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
  .sidebar {
    width: 64px;
  }

  .sidebar-header h1 span,
  .nav-item span {
    display: none;
  }

  .nav-item {
    justify-content: center;
    padding: 12px;
    margin: 2px 4px;
  }

  .nav-item svg {
    width: 20px;
    height: 20px;
  }

  .main {
    padding: 20px 16px;
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  .page-title {
    font-size: 22px;
  }

  .stat-value {
    font-size: 28px;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 12px; }
.mb-3 { margin-bottom: 12px; }
.text-muted { color: var(--text-muted); }
.text-sm { font-size: 13px; }

/* ============================================
   ANIMATED COUNTER
   ============================================ */
.count-up {
  display: inline-block;
  transition: transform var(--transition-spring);
}

/* ============================================
   FLOATING CARD EFFECT
   ============================================ */
.float-card {
  transition: all var(--transition-base);
}

.float-card:hover {
  transform: translateY(-6px);
  box-shadow:
    0 12px 40px rgba(0, 0, 0, 0.4),
    0 0 30px var(--primary-glow);
}

/* ============================================
   GLOW EFFECTS
   ============================================ */
.glow-green {
  box-shadow: 0 0 20px var(--primary-glow);
}

.glow-blue {
  box-shadow: 0 0 20px var(--info-glow);
}

/* ============================================
   EMPTY STATE
   ============================================ */
td[colspan] {
  text-align: center;
  color: var(--text-muted) !important;
  padding: 48px 20px !important;
  font-size: 13.5px;
  font-style: italic;
  border-bottom: none !important;
}