/**
 * HygieneChemSol - Admin Dashboard & CMS Styles
 * Implements Section 6 (Admin Dashboard & Content Management System)
 */

.admin-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: 100vh;
  background-color: #F8FAFC;
}

/* 1. Admin Sidebar */
.admin-sidebar {
  background-color: var(--color-deep-navy);
  color: #DDE8ED;
  padding: var(--space-6) 0;
  display: flex;
  flex-direction: column;
}

.admin-sidebar-header {
  padding: 0 var(--space-6) var(--space-6);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  margin-bottom: var(--space-4);
}

.admin-brand {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-white);
  display: flex;
  align-items: center;
  gap: 10px;
}

.admin-brand span {
  color: var(--color-light-accent);
}

.admin-nav {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 0 var(--space-4);
  flex-grow: 1;
}

.admin-nav-item a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  color: #B5C9D3;
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.admin-nav-item a:hover,
.admin-nav-item.active a {
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-white);
}

.admin-nav-item.active a {
  background: var(--color-primary-teal);
  color: var(--color-white);
}

.admin-sidebar-footer {
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.admin-user-info {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: var(--space-3);
}

.admin-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--color-light-accent);
  color: var(--color-deep-navy);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: var(--text-sm);
}

/* 2. Admin Main Content Area */
.admin-main {
  padding: var(--space-8);
  overflow-y: auto;
}

.admin-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-8);
}

.admin-title {
  font-size: 1.75rem;
  color: var(--color-deep-navy);
  margin: 0;
}

/* 3. KPI Stat Cards (Fig. 4 in PDF) */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-6);
  margin-bottom: var(--space-8);
}

.kpi-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}

.kpi-metric {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-deep-navy);
  line-height: 1;
  margin-bottom: 6px;
}

.kpi-label {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
}

/* 4. Data Tables & Card Panels */
.admin-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--space-8);
}

.admin-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border-light);
  margin-bottom: var(--space-4);
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
}

.admin-table th,
.admin-table td {
  padding: 12px 14px;
  font-size: var(--text-sm);
  text-align: left;
  border-bottom: 1px solid var(--color-border-light);
}

.admin-table th {
  background-color: var(--color-tint-bg);
  color: var(--color-deep-navy);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 0.05em;
}

.admin-table tr:hover td {
  background-color: #F8FAFC;
}

/* Status Badges */
.badge-status {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
}

.badge-new {
  background-color: var(--color-light-accent-subtle);
  color: #0284C7;
}

.badge-in_progress {
  background-color: var(--color-warning-bg);
  color: #B45309;
}

.badge-quoted {
  background-color: var(--color-success-bg);
  color: #047857;
}

.badge-closed {
  background-color: #F1F5F9;
  color: #64748B;
}

/* Flash Alerts */
.alert {
  padding: 12px 18px;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-6);
  font-size: var(--text-sm);
  font-weight: 600;
}

.alert-success {
  background-color: var(--color-success-bg);
  color: #065F46;
  border: 1px solid #A7F3D0;
}

.alert-danger {
  background-color: var(--color-danger-bg);
  color: #991B1B;
  border: 1px solid #FECACA;
}

.admin-mobile-bar {
  display: none;
}

.admin-sidebar-overlay {
  display: none;
}

@media (max-width: 860px) {
  .admin-layout {
    grid-template-columns: 1fr;
  }

  .admin-mobile-bar {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4) var(--space-5);
    background: var(--color-deep-navy);
    color: var(--color-white);
    position: sticky;
    top: 0;
    z-index: 100;
    width: 100%;
  }

  body:has(.admin-mobile-bar) .admin-main {
    padding-top: var(--space-5);
  }

  .admin-mobile-toggle {
    background: none;
    border: none;
    color: var(--color-white);
    font-size: 1.25rem;
    cursor: pointer;
    padding: 6px;
  }

  .admin-mobile-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: var(--text-base);
  }

  .admin-sidebar {
    display: flex;
    position: fixed;
    top: 0;
    left: 0;
    width: 260px;
    height: 100vh;
    z-index: 1100;
    transform: translateX(-100%);
    transition: transform var(--transition-normal);
    overflow-y: auto;
  }

  .admin-sidebar.active {
    transform: translateX(0);
  }

  .admin-sidebar-overlay {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(10, 36, 54, 0.6);
    z-index: 1050;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal), visibility var(--transition-normal);
  }

  .admin-sidebar-overlay.active {
    opacity: 1;
    visibility: visible;
  }

  .admin-main {
    padding: var(--space-5);
  }

  .admin-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
  }

  .admin-table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }
}

/* ==================== Login Page ==================== */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  background: linear-gradient(135deg, var(--color-deep-navy) 0%, var(--color-deep-navy-dark) 100%);
}

.login-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  width: 100%;
  max-width: 440px;
  overflow: hidden;
}

.login-header {
  background: var(--color-deep-navy);
  padding: var(--space-8) var(--space-6);
  text-align: center;
  border-bottom: 3px solid var(--color-primary-teal);
}

.login-header .logo {
  height: 48px;
  background: var(--color-white);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-4);
  display: inline-block;
}

.login-header h2 {
  color: var(--color-white);
  font-size: var(--text-xl);
  margin: 0;
}

.login-header p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  margin: var(--space-1) 0 0;
}

.login-body {
  padding: var(--space-8) var(--space-7);
}

.login-footer {
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border-light);
  text-align: center;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.login-footer .divider {
  margin-bottom: var(--space-2);
}

.login-footer .back-link {
  font-size: var(--text-xs);
  color: var(--color-primary-teal);
}

.login-form .form-group {
  margin-bottom: var(--space-6);
}

.login-form {
  padding: var(--space-6);
}

.login-form .form-group:last-of-type {
  margin-bottom: var(--space-8);
}

.login-form .input-icon {
  position: absolute;
  left: 14px;
  top: 13px;
  color: var(--color-text-muted);
  font-size: 13px;
  pointer-events: none;
}

.login-form .input-wrapper {
  position: relative;
}

.login-form .input-wrapper .form-control {
  padding-left: 38px;
}

.login-btn {
  width: 100%;
}

.margin-bottom-lg {
  margin-bottom: var(--space-5);
}

.icon-margin {
  margin-right: 6px;
}

/* ==================== Edit Product Modal ==================== */
.admin-main .modal-overlay {
  z-index: 2000;
}

/* ==================== Add Product Form Grid ==================== */
.form-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.form-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

.form-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}

.form-grid-full {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

.form-checkbox-label {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-deep-navy);
}

.form-checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--color-primary-teal);
}

.product-form .admin-card-header h3 {
  margin: 0;
  font-size: var(--text-lg);
  color: var(--color-deep-navy);
}

.product-form .admin-card-header h3 i {
  color: var(--color-primary-teal);
  margin-right: var(--space-2);
}

.product-form .form-group {
  margin-bottom: var(--space-4);
}

.product-form .btn {
  width: 100%;
  justify-content: center;
}

.product-form .form-section {
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border-light);
}

.product-form .form-section:last-of-type {
  border-bottom: none;
  margin-bottom: var(--space-4);
  padding-bottom: 0;
}

.product-form .form-section-title {
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-deep-navy);
  margin-bottom: var(--space-3);
}

.product-form select.form-control,
.product-form textarea.form-control {
  min-height: 42px;
}

.product-form textarea.form-control[rows="2"] {
  min-height: 60px;
}

.product-form textarea.form-control[rows="3"] {
  min-height: 80px;
}

.product-form .modal-card {
  max-width: 760px;
}

.product-form .modal-overlay .modal-body {
  max-height: 80vh;
  overflow-y: auto;
}

@media (max-width: 992px) {
  .form-grid-3,
  .form-grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .form-grid-3,
  .form-grid-4,
  .form-grid-2 {
    grid-template-columns: 1fr;
  }
}