/**
 * RANI JAI HSS NIRMALAGIRI ALUMNI PORTAL
 * Admin Dashboard Stylesheet - Modern, Secure, Professional
 * Strictly follows Official Brand Color Palette
 */

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

:root {
  --admin-navy: #0a254a;
  --admin-navy-dark: #06162c;
  --admin-navy-light: #163d74;
  --admin-gold: #e59b0f;
  --admin-gold-light: #ffb72b;
  --gold-gradient: linear-gradient(135deg, #f5ad24 0%, #d47e00 100%);
  --admin-teal: #0e8388;
  
  --admin-bg: #f8fafc;
  --admin-surface: #ffffff;
  --admin-border: #e2e8f0;
  --admin-text-main: #0f172a;
  --admin-text-secondary: #475569;
  --admin-text-muted: #64748b;
  --admin-text-light: #f8fafc;

  --status-success: #16a34a;
  --status-success-bg: #f0fdf4;
  --status-danger: #dc2626;
  --status-danger-bg: #fef2f2;
  --status-warning: #d97706;
  --status-warning-bg: #fffbeb;
  --status-info: #0284c7;
  --status-info-bg: #eff6ff;

  --sidebar-width: 260px;
  --header-height: 65px;
  --transition: all 0.2s ease-in-out;
}

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

body.admin-body {
  font-family: 'Plus Jakarta Sans', sans-serif;
  background-color: var(--admin-bg);
  color: var(--admin-text-main);
  min-height: 100vh;
  display: flex;
}

/* Sidebar */
.admin-sidebar {
  width: var(--sidebar-width);
  background-color: var(--admin-navy-dark);
  color: var(--admin-text-light);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 100;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  transition: var(--transition);
}

.sidebar-header {
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: var(--admin-navy);
}

.sidebar-logo {
  height: 42px;
  width: auto;
}

.sidebar-title {
  font-family: 'Libre Baskerville', serif;
  font-size: 1.05rem;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.2;
}

.sidebar-badge {
  font-size: 0.68rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--admin-gold);
  font-weight: 700;
}

.sidebar-nav {
  padding: 20px 10px;
  flex-grow: 1;
  overflow-y: auto;
}

.sidebar-section-title {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: #94a3b8;
  padding: 10px 14px 6px 14px;
  font-weight: 700;
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 16px;
  color: #cbd5e1;
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 600;
  border-radius: 8px;
  transition: var(--transition);
  margin-bottom: 4px;
}

.sidebar-link:hover,
.sidebar-link.active {
  background-color: var(--admin-navy-light);
  color: #ffffff;
}

.sidebar-link.active {
  background: var(--gold-gradient);
  color: var(--admin-navy-dark);
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(229, 155, 15, 0.3);
}

.sidebar-link svg {
  flex-shrink: 0;
}

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.8rem;
  color: var(--admin-text-muted);
}

/* Main Layout */
.admin-main {
  margin-left: var(--sidebar-width);
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 100vh;
}

/* Top Header */
.admin-topbar {
  height: var(--header-height);
  background-color: var(--admin-surface);
  border-bottom: 1px solid var(--admin-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 30px;
  position: sticky;
  top: 0;
  z-index: 90;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.03);
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 15px;
}

.topbar-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--admin-navy);
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.admin-user-pill {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--admin-text-main);
}

.user-avatar-sm {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--gold-gradient);
  color: var(--admin-navy-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.9rem;
}

/* Content Area */
.admin-content {
  padding: 30px;
  flex-grow: 1;
}

.page-actions-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 25px;
  flex-wrap: wrap;
  gap: 15px;
}

/* Metric / KPI Cards */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 30px;
}

.metric-card {
  background: var(--admin-surface);
  border: 1px solid var(--admin-border);
  border-radius: 12px;
  padding: 24px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: var(--transition);
}

.metric-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(10, 37, 74, 0.06);
  border-color: var(--admin-gold);
}

.metric-value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--admin-navy);
  line-height: 1.2;
}

.metric-label {
  font-size: 0.85rem;
  color: var(--admin-text-muted);
  font-weight: 600;
  margin-top: 4px;
}

.metric-icon-box {
  width: 50px;
  height: 50px;
  border-radius: 10px;
  background-color: var(--admin-bg);
  color: var(--admin-navy);
  display: flex;
  align-items: center;
  justify-content: center;
}

.metric-icon-box.gold {
  background: rgba(229, 155, 15, 0.12);
  color: var(--admin-gold);
}

.metric-icon-box.teal {
  background: rgba(14, 131, 136, 0.12);
  color: var(--admin-teal);
}

/* Tables */
.admin-table-card {
  background: var(--admin-surface);
  border: 1px solid var(--admin-border);
  border-radius: 12px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  overflow: hidden;
  margin-bottom: 30px;
}

.table-header-bar {
  padding: 18px 24px;
  border-bottom: 1px solid var(--admin-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 15px;
}

.table-header-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--admin-navy);
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.92rem;
}

.admin-table th {
  background-color: var(--admin-bg);
  padding: 14px 20px;
  font-weight: 700;
  color: var(--admin-text-secondary);
  border-bottom: 1px solid var(--admin-border);
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.8px;
}

.admin-table td {
  padding: 14px 20px;
  border-bottom: 1px solid var(--admin-border);
  color: var(--admin-text-main);
  vertical-align: middle;
}

.admin-table tr:hover td {
  background-color: rgba(248, 250, 252, 0.8);
}

.admin-table tr:last-child td {
  border-bottom: none;
}

/* Status Badges */
.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-success { background: var(--status-success-bg); color: var(--status-success); }
.badge-danger { background: var(--status-danger-bg); color: var(--status-danger); }
.badge-warning { background: var(--status-warning-bg); color: var(--status-warning); }
.badge-info { background: var(--status-info-bg); color: var(--status-info); }

/* Buttons */
.btn-admin {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: var(--transition);
}

.btn-admin-primary {
  background: var(--gold-gradient);
  color: var(--admin-navy-dark);
  font-weight: 700;
}

.btn-admin-primary:hover {
  background: linear-gradient(135deg, #ffb72b 0%, #e59b0f 100%);
  transform: translateY(-1px);
}

.btn-admin-navy {
  background: var(--admin-navy);
  color: #ffffff;
}

.btn-admin-navy:hover {
  background: var(--admin-navy-light);
}

.btn-admin-outline {
  background: transparent;
  border: 1px solid var(--admin-border);
  color: var(--admin-text-secondary);
}

.btn-admin-outline:hover {
  background: var(--admin-bg);
  color: var(--admin-navy);
}

.btn-admin-danger {
  background: var(--status-danger);
  color: #ffffff;
}

.btn-admin-danger:hover {
  background: #b91c1c;
}

.btn-action-icon {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  border: 1px solid var(--admin-border);
  background: transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--admin-text-secondary);
  cursor: pointer;
  transition: var(--transition);
}

.btn-action-icon:hover {
  background: var(--admin-navy);
  color: #ffffff;
  border-color: var(--admin-navy);
}

.btn-action-icon.delete:hover {
  background: var(--status-danger);
  border-color: var(--status-danger);
  color: #ffffff;
}

/* Forms */
.admin-form-card {
  background: var(--admin-surface);
  border: 1px solid var(--admin-border);
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.form-group-admin {
  margin-bottom: 20px;
}

.form-label-admin {
  display: block;
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--admin-navy);
  margin-bottom: 6px;
}

.form-control-admin,
.form-select-admin {
  width: 100%;
  padding: 10px 14px;
  font-size: 0.92rem;
  font-family: inherit;
  border: 1px solid var(--admin-border);
  border-radius: 6px;
  outline: none;
  background-color: var(--admin-surface);
  color: var(--admin-text-main);
  transition: var(--transition);
}

.form-control-admin:focus,
.form-select-admin:focus {
  border-color: var(--admin-gold);
  box-shadow: 0 0 0 3px rgba(229, 155, 15, 0.2);
}

/* Search Box */
.table-search-input {
  padding: 8px 14px;
  border-radius: 6px;
  border: 1px solid var(--admin-border);
  font-size: 0.88rem;
  min-width: 260px;
  outline: none;
}

.table-search-input:focus {
  border-color: var(--admin-gold);
}

/* Responsive */
@media (max-width: 1024px) {
  .metrics-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .admin-sidebar {
    transform: translateX(-100%);
  }
  .admin-sidebar.mobile-open {
    transform: translateX(0);
  }
  .admin-main {
    margin-left: 0;
  }
  .metrics-grid { grid-template-columns: 1fr; }
  .table-header-bar { flex-direction: column; align-items: stretch; }
  .admin-table { font-size: 0.85rem; }
}