/* ==========================================================================
   Era Management Institute of Technology [EMIT], Dehradun
   Admin Dashboard Stylesheet (Royal Oxford Navy & Champagne Gold Theme)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@600;700;800;900&family=Outfit:wght@400;500;600;700;800;900&family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

:root {
  /* Royal Oxford Navy Spectrum */
  --navy-darkest: #030812;
  --navy-base: #07152B;
  --navy-card: #0A1E3D;
  --navy-surface: #0F2A56;
  --navy-elevated: #163870;
  --navy-glass: rgba(7, 21, 43, 0.94);

  /* Metallic Champagne & 24K Gold */
  --gold-primary: #D4AF37;
  --gold-light: #F7E7B4;
  --gold-bright: #FFE885;
  --gold-champagne: #EBD8B0;
  --gold-dark: #A17519;
  --gold-gradient: linear-gradient(135deg, #BF953F 0%, #FCF6BA 25%, #B38728 50%, #FBF5B7 75%, #AA771C 100%);
  --gold-gradient-soft: linear-gradient(135deg, rgba(212, 175, 55, 0.15) 0%, rgba(247, 231, 180, 0.25) 100%);
  --gold-glow: rgba(212, 175, 55, 0.4);

  /* WhatsApp Green */
  --whatsapp-green: #25D366;
  --whatsapp-hover: #1EBE5D;
  --whatsapp-gradient: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
  --whatsapp-glow: rgba(37, 211, 102, 0.45);

  /* Status Colors */
  --status-new: #10B981;
  --status-new-bg: rgba(16, 185, 129, 0.15);
  --status-contacted: #F59E0B;
  --status-contacted-bg: rgba(245, 158, 11, 0.15);
  --status-followup: #3B82F6;
  --status-followup-bg: rgba(59, 130, 246, 0.15);
  --status-enrolled: #8B5CF6;
  --status-enrolled-bg: rgba(139, 92, 246, 0.15);
  --status-closed: #64748B;
  --status-closed-bg: rgba(100, 116, 139, 0.15);

  /* Backgrounds & Text */
  --bg-primary: #040A15;
  --bg-secondary: #07152B;
  --bg-surface: #0B1E3D;
  --bg-card: rgba(10, 30, 61, 0.88);

  --text-primary: #F8FAFC;
  --text-secondary: #CBD5E1;
  --text-muted: #94A3B8;
  --text-gold: #F7E7B4;

  /* Borders & Shadows */
  --border-subtle: rgba(212, 175, 55, 0.18);
  --border-gold: rgba(212, 175, 55, 0.45);
  --border-gold-bright: rgba(212, 175, 55, 0.85);

  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 10px 25px -4px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 20px 45px -8px rgba(0, 0, 0, 0.7);

  /* Typography */
  --font-serif: 'Cinzel', 'Georgia', serif;
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  --transition-fast: 160ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.55;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* Background Ambient Glow */
.admin-bg-mesh {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background: 
    radial-gradient(circle at 10% 10%, rgba(212, 175, 55, 0.12) 0%, transparent 40%),
    radial-gradient(circle at 90% 40%, rgba(13, 34, 70, 0.4) 0%, transparent 45%),
    radial-gradient(circle at 50% 95%, rgba(212, 175, 55, 0.08) 0%, transparent 50%);
}

.admin-container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 1.5rem 2rem;
  position: relative;
  z-index: 1;
}

/* Header */
.admin-header {
  background: var(--navy-glass);
  border-bottom: 1px solid var(--border-gold);
  backdrop-filter: blur(16px);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-md);
}

.admin-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  max-width: 1440px;
  margin: 0 auto;
}

.admin-brand {
  display: flex;
  align-items: center;
  gap: 1rem;
  text-decoration: none;
}

.admin-logo-img {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  box-shadow: 0 0 15px var(--gold-glow);
  border: 1px solid var(--gold-primary);
}

.admin-brand-text {
  display: flex;
  flex-direction: column;
}

.admin-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 900;
  color: #FFFFFF;
  letter-spacing: 0.04em;
}

.admin-subtitle {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--gold-light);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.admin-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.88rem;
  cursor: pointer;
  text-decoration: none;
  border: 1px solid transparent;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.98);
}

.btn-gold {
  background: var(--gold-gradient);
  color: #040A15;
  border-color: #D4AF37;
  box-shadow: 0 4px 15px rgba(212, 175, 55, 0.35);
}

.btn-gold:hover {
  filter: brightness(1.08);
  box-shadow: 0 6px 20px rgba(212, 175, 55, 0.55);
  transform: translateY(-2px);
}

.btn-whatsapp {
  background: var(--whatsapp-gradient);
  color: #FFFFFF !important;
  box-shadow: 0 4px 14px var(--whatsapp-glow);
}

.btn-whatsapp:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.6);
}

.btn-secondary {
  background: var(--bg-surface);
  color: var(--text-primary);
  border-color: var(--border-gold);
}

.btn-secondary:hover {
  border-color: var(--gold-primary);
  color: var(--gold-light);
  background: var(--navy-elevated);
  transform: translateY(-2px);
}

.btn-danger {
  background: rgba(239, 68, 68, 0.15);
  color: #F87171;
  border-color: rgba(239, 68, 68, 0.4);
}

.btn-danger:hover {
  background: #EF4444;
  color: #FFFFFF;
}

.btn-sm {
  padding: 0.45rem 0.85rem;
  font-size: 0.8rem;
  border-radius: var(--radius-sm);
}

.btn-icon {
  width: 36px;
  height: 36px;
  padding: 0;
  border-radius: var(--radius-sm);
}

/* KPI Summary Cards Grid */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin: 1.75rem 0 2.25rem 0;
}

.kpi-card {
  background: var(--bg-card);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-lg);
  padding: 1.35rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-fast);
}

.kpi-card:hover {
  transform: translateY(-3px);
  border-color: var(--gold-bright);
}

.kpi-info {
  display: flex;
  flex-direction: column;
}

.kpi-label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.kpi-value {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 900;
  color: #FFFFFF;
  margin: 0.2rem 0;
  line-height: 1.1;
}

.kpi-subtext {
  font-size: 0.75rem;
  color: var(--gold-light);
  font-weight: 600;
}

.kpi-icon-box {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  border: 1px solid var(--border-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

/* Control & Filter Toolbar */
.admin-toolbar {
  background: var(--bg-card);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-xl);
  padding: 1.35rem 1.75rem;
  margin-bottom: 1.75rem;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.toolbar-row-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.toolbar-row-filters {
  display: grid;
  grid-template-columns: 2fr 1fr 1.2fr 1fr 1fr;
  gap: 0.85rem;
  align-items: center;
}

.admin-search-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.admin-search-icon {
  position: absolute;
  left: 1rem;
  color: var(--gold-light);
  font-size: 1rem;
  pointer-events: none;
}

.admin-input {
  width: 100%;
  padding: 0.75rem 1rem 0.75rem 2.6rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.88rem;
  outline: none;
  font-family: var(--font-body);
  transition: border-color var(--transition-fast);
}

.admin-input:focus {
  border-color: var(--gold-primary);
  box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.25);
}

.admin-select {
  padding: 0.75rem 1rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.88rem;
  font-weight: 600;
  outline: none;
  cursor: pointer;
  font-family: var(--font-body);
  transition: border-color var(--transition-fast);
}

.admin-select:focus {
  border-color: var(--gold-primary);
}

/* Leads Table Card */
.leads-table-card {
  background: var(--bg-card);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  margin-bottom: 3rem;
}

.table-header-meta {
  padding: 1.25rem 1.75rem;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-gold);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.table-responsive {
  width: 100%;
  overflow-x: auto;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.88rem;
}

.admin-table th {
  background: rgba(7, 21, 43, 0.95);
  color: var(--gold-light);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-gold);
  white-space: nowrap;
}

.admin-table td {
  padding: 1.15rem 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  vertical-align: middle;
}

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

.admin-table tbody tr:hover {
  background: rgba(212, 175, 55, 0.06);
}

.student-meta {
  display: flex;
  flex-direction: column;
}

.student-name {
  font-weight: 800;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.student-id {
  font-size: 0.75rem;
  color: var(--gold-light);
  font-weight: 700;
  letter-spacing: 0.04em;
}

.student-city {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.course-pill-badge {
  display: inline-block;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-sm);
  background: rgba(212, 175, 55, 0.12);
  border: 1px solid var(--border-gold);
  color: var(--gold-light);
  font-weight: 700;
  font-size: 0.82rem;
  max-width: 260px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.source-badge {
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  width: fit-content;
  margin-top: 0.25rem;
}

/* Status Badges */
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.status-new {
  background: var(--status-new-bg);
  color: var(--status-new);
  border: 1px solid rgba(16, 185, 129, 0.4);
}

.status-contacted {
  background: var(--status-contacted-bg);
  color: var(--status-contacted);
  border: 1px solid rgba(245, 158, 11, 0.4);
}

.status-followup {
  background: var(--status-followup-bg);
  color: var(--status-followup);
  border: 1px solid rgba(59, 130, 246, 0.4);
}

.status-enrolled {
  background: var(--status-enrolled-bg);
  color: var(--status-enrolled);
  border: 1px solid rgba(139, 92, 246, 0.4);
}

.status-closed {
  background: var(--status-closed-bg);
  color: var(--status-closed);
  border: 1px solid rgba(100, 116, 139, 0.4);
}

/* Table Quick Action Buttons */
.action-btn-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Modal Popup */
.admin-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(3, 8, 18, 0.88);
  backdrop-filter: blur(10px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
}

.admin-modal-backdrop.open {
  opacity: 1;
  visibility: visible;
}

.admin-modal-container {
  background: var(--bg-card);
  border: 2px solid var(--border-gold);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 600px;
  overflow: hidden;
  box-shadow: var(--shadow-lg), 0 0 35px var(--gold-glow);
  transform: scale(0.95);
  transition: transform var(--transition-fast);
}

.admin-modal-backdrop.open .admin-modal-container {
  transform: scale(1);
}

.admin-modal-header {
  padding: 1.35rem 1.75rem;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-gold);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.admin-modal-title {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: #FFFFFF;
}

.admin-modal-body {
  padding: 1.75rem;
  max-height: 80vh;
  overflow-y: auto;
}

.admin-modal-footer {
  padding: 1.25rem 1.75rem;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
}

/* Form Groups */
.admin-form-group {
  margin-bottom: 1.2rem;
}

.admin-form-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.admin-form-control {
  width: 100%;
  padding: 0.8rem 1rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.9rem;
  outline: none;
  font-family: var(--font-body);
  transition: border-color var(--transition-fast);
}

.admin-form-control:focus {
  border-color: var(--gold-primary);
  box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.25);
}

/* Responsive */
@media (max-width: 1024px) {
  .toolbar-row-filters {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .admin-container {
    padding: 1rem;
  }
  .toolbar-row-filters {
    grid-template-columns: 1fr;
  }
  .admin-nav {
    padding: 0.75rem 1rem;
    flex-wrap: wrap;
    gap: 0.75rem;
  }
}