/* ===================================
   WTS Admin - Professional Stylesheet
   =================================== */

:root {
  /* Colors */
  --primary: #667eea;
  --primary-dark: #5a67d8;
  --primary-light: #7c8fef;
  --secondary: #764ba2;
  --accent: #f093fb;

  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #3b82f6;

  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;

  --white: #ffffff;
  --black: #000000;

  /* Sidebar */
  --sidebar-width: 280px;
  --sidebar-collapsed-width: 70px;
  --sidebar-bg: linear-gradient(180deg, #1a1c2e 0%, #0f0f1a 100%);

  /* Header */
  --header-height: 64px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);

  /* Border Radius */
  --radius-sm: 4px;
  --radius: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  /* Transitions */
  --transition: all 0.3s ease;
  --transition-fast: all 0.15s ease;
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--gray-100);
  color: var(--gray-800);
  line-height: 1.6;
  min-height: 100vh;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition-fast);
}

a:hover {
  color: var(--primary-dark);
}

img {
  max-width: 100%;
  height: auto;
}

button {
  cursor: pointer;
  font-family: inherit;
  border: none;
  background: none;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

/* ===================================
   Auth Pages Styles
   =================================== */

.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  padding: 20px;
}

.auth-container {
  width: 100%;
  max-width: 420px;
}

.auth-card {
  background: var(--white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  padding: 40px;
}

.auth-logo {
  text-align: center;
  margin-bottom: 30px;
}

.auth-logo-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  border-radius: var(--radius-lg);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 15px;
}

.auth-logo-icon i {
  font-size: 28px;
  color: var(--white);
}

.auth-logo h1 {
  font-size: 24px;
  font-weight: 700;
  color: var(--gray-900);
  margin: 0;
}

.auth-logo p {
  color: var(--gray-500);
  margin-top: 5px;
}

.auth-form {
  margin-top: 30px;
}

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

.form-label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--gray-700);
  margin-bottom: 8px;
}

.form-input {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius);
  font-size: 15px;
  transition: var(--transition-fast);
  background: var(--white);
}

.form-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.15);
}

.form-input::placeholder {
  color: var(--gray-400);
}

.form-input-icon {
  position: relative;
}

.form-input-icon .form-input {
  padding-left: 45px;
}

.form-input-icon i {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--gray-400);
}

.form-checkbox {
  display: flex;
  align-items: center;
  gap: 10px;
}

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

.form-checkbox label {
  font-size: 14px;
  color: var(--gray-600);
}

.form-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.form-link {
  font-size: 14px;
  color: var(--primary);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: var(--white);
  width: 100%;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
  background: var(--gray-100);
  color: var(--gray-700);
  border: 2px solid var(--gray-200);
}

.btn-secondary:hover {
  background: var(--gray-200);
}

.btn-danger {
  background: var(--danger);
  color: var(--white);
}

.btn-danger:hover {
  background: #dc2626;
}

.btn-success {
  background: var(--success);
  color: var(--white);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 13px;
}

.btn-icon {
  padding: 8px;
  width: 36px;
  height: 36px;
}

.auth-divider {
  display: flex;
  align-items: center;
  margin: 25px 0;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--gray-200);
}

.auth-divider span {
  padding: 0 15px;
  color: var(--gray-400);
  font-size: 14px;
}

.social-login {
  display: flex;
  gap: 12px;
}

.social-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--gray-700);
  font-weight: 500;
  transition: var(--transition);
}

.social-btn:hover {
  background: var(--gray-50);
  border-color: var(--gray-300);
}

.social-btn.google {
  color: #ea4335;
}

.social-btn.facebook {
  color: #1877f2;
}

.auth-footer {
  text-align: center;
  margin-top: 25px;
  color: var(--gray-500);
  font-size: 14px;
}

.auth-footer a {
  color: var(--primary);
  font-weight: 500;
}

.alert {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border-radius: var(--radius);
  margin-bottom: 20px;
  font-size: 14px;
}

.alert-success {
  background: #ecfdf5;
  color: #065f46;
  border: 1px solid #a7f3d0;
}

.alert-error {
  background: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

.alert-close {
  margin-left: auto;
  background: none;
  border: none;
  font-size: 20px;
  cursor: pointer;
  opacity: 0.5;
}

.alert-close:hover {
  opacity: 1;
}

/* ===================================
   Dashboard Layout
   =================================== */

.dashboard-layout {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  position: fixed;
  left: 0;
  top: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--sidebar-bg);
  display: flex;
  flex-direction: column;
  z-index: 1000;
  transition: var(--transition);
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 18px;
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--white);
}

.sidebar-toggle {
  display: none;
  color: var(--gray-400);
  font-size: 18px;
  padding: 8px;
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 20px 0;
}

.nav-list {
  list-style: none;
}

.nav-item {
  margin: 4px 12px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: var(--radius);
  color: rgba(255, 255, 255, 0.7);
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition-fast);
}

.nav-link:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--white);
}

.nav-link.active {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: var(--white);
}

.nav-link i {
  width: 20px;
  text-align: center;
}

.submenu-toggle {
  justify-content: flex-start;
}

.submenu-arrow {
  margin-left: auto;
  font-size: 12px;
  transition: var(--transition);
}

.submenu-toggle.active .submenu-arrow {
  transform: rotate(180deg);
}

.submenu {
  list-style: none;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.submenu.open {
  max-height: 500px;
}

.submenu a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px 10px 48px;
  color: rgba(255, 255, 255, 0.6);
  font-size: 13px;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}

.submenu a:hover {
  color: var(--white);
  background: rgba(255, 255, 255, 0.05);
}

.submenu a.active {
  color: var(--primary-light);
}

.submenu a i {
  font-size: 12px;
  width: 16px;
}

.nav-divider {
  height: 1px;
  background: rgba(255, 255, 255, 0.1);
  margin: 15px 20px;
}

.sidebar-footer {
  padding: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.user-info {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 15px;
}

.user-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 600;
  overflow: hidden;
}

.user-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.user-details {
  display: flex;
  flex-direction: column;
}

.user-name {
  color: var(--white);
  font-weight: 500;
  font-size: 14px;
}

.user-role {
  color: rgba(255, 255, 255, 0.5);
  font-size: 12px;
  text-transform: capitalize;
}

.logout-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 10px;
  border-radius: var(--radius);
  background: rgba(239, 68, 68, 0.1);
  color: #fca5a5;
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
}

.logout-btn:hover {
  background: rgba(239, 68, 68, 0.2);
  color: #ef4444;
}

.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 999;
}

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

/* Header */
.main-header {
  position: sticky;
  top: 0;
  height: var(--header-height);
  background: var(--white);
  border-bottom: 1px solid var(--gray-200);
  display: flex;
  align-items: center;
  padding: 0 24px;
  gap: 20px;
  z-index: 100;
}

.mobile-menu-btn {
  display: none;
  font-size: 20px;
  color: var(--gray-600);
}

.header-search {
  flex: 1;
  max-width: 400px;
}

.search-form {
  position: relative;
}

.search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--gray-400);
}

.search-input {
  width: 100%;
  padding: 10px 16px 10px 42px;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-lg);
  font-size: 14px;
  background: var(--gray-50);
  transition: var(--transition-fast);
}

.search-input:focus {
  outline: none;
  background: var(--white);
  border-color: var(--primary);
}

.search-results {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  margin-top: 8px;
  display: none;
  max-height: 400px;
  overflow-y: auto;
}

.search-results.active {
  display: block;
}

.search-result-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--gray-100);
  transition: var(--transition-fast);
}

.search-result-item:hover {
  background: var(--gray-50);
}

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

.header-btn {
  position: relative;
  width: 40px;
  height: 40px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-600);
  transition: var(--transition-fast);
}

.header-btn:hover {
  background: var(--gray-100);
  color: var(--gray-800);
}

.notification-badge {
  position: absolute;
  top: 4px;
  right: 4px;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  border-radius: 9px;
  background: var(--danger);
  color: var(--white);
  font-size: 11px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
}

.header-user {
  position: relative;
}

.user-dropdown-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 12px 6px 6px;
  border-radius: var(--radius-lg);
  transition: var(--transition-fast);
}

.user-dropdown-btn:hover {
  background: var(--gray-100);
}

.user-avatar-small {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 600;
  font-size: 14px;
  overflow: hidden;
}

.user-avatar-small img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.user-name-header {
  font-size: 14px;
  font-weight: 500;
  color: var(--gray-700);
}

.user-dropdown-btn i {
  font-size: 12px;
  color: var(--gray-400);
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  right: 0;
  min-width: 180px;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 8px;
  margin-top: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: var(--transition-fast);
}

.user-dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  color: var(--gray-700);
  font-size: 14px;
  transition: var(--transition-fast);
}

.dropdown-item:hover {
  background: var(--gray-100);
}

.dropdown-item.text-danger {
  color: var(--danger);
}

.dropdown-divider {
  height: 1px;
  background: var(--gray-200);
  margin: 8px 0;
}

/* Page Content */
.page-content {
  flex: 1;
  padding: 24px;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 16px;
}

.page-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--gray-900);
}

.page-subtitle {
  color: var(--gray-500);
  font-size: 14px;
  margin-top: 4px;
}

.page-actions {
  display: flex;
  gap: 12px;
}

/* Cards */
.card {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--gray-100);
}

.card-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--gray-900);
}

.card-body {
  padding: 24px;
}

.card-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--gray-100);
  background: var(--gray-50);
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow);
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

.stat-icon.purple {
  background: rgba(102, 126, 234, 0.1);
  color: var(--primary);
}

.stat-icon.green {
  background: rgba(16, 185, 129, 0.1);
  color: var(--success);
}

.stat-icon.blue {
  background: rgba(59, 130, 246, 0.1);
  color: var(--info);
}

.stat-icon.orange {
  background: rgba(245, 158, 11, 0.1);
  color: var(--warning);
}

.stat-content h3 {
  font-size: 28px;
  font-weight: 700;
  color: var(--gray-900);
  line-height: 1;
}

.stat-content p {
  color: var(--gray-500);
  font-size: 14px;
  margin-top: 4px;
}

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

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

.table th,
.table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--gray-100);
}

.table th {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--gray-500);
  background: var(--gray-50);
}

.table td {
  font-size: 14px;
  color: var(--gray-700);
}

.table tr:hover td {
  background: var(--gray-50);
}

.table-actions {
  display: flex;
  gap: 8px;
}

/* Status Badge */
.status-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
}

.status-badge.published,
.status-badge.active {
  background: rgba(16, 185, 129, 0.1);
  color: var(--success);
}

.status-badge.draft,
.status-badge.inactive {
  background: rgba(107, 114, 128, 0.1);
  color: var(--gray-600);
}

.status-badge.scheduled {
  background: rgba(59, 130, 246, 0.1);
  color: var(--info);
}

.status-badge.pending {
  background: rgba(245, 158, 11, 0.1);
  color: var(--warning);
}

/* Forms */
.form-card {
  max-width: 800px;
}

.form-section {
  margin-bottom: 30px;
}

.form-section-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--gray-200);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.form-row.single {
  grid-template-columns: 1fr;
}

textarea.form-input {
  min-height: 120px;
  resize: vertical;
}

.form-help {
  font-size: 12px;
  color: var(--gray-500);
  margin-top: 6px;
}

.form-actions {
  display: flex;
  gap: 12px;
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid var(--gray-200);
}

select.form-input {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%236b7280'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
  padding-right: 40px;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 60px 20px;
}

.empty-state-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  background: var(--gray-100);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  color: var(--gray-400);
}

.empty-state h3 {
  font-size: 18px;
  color: var(--gray-900);
  margin-bottom: 8px;
}

.empty-state p {
  color: var(--gray-500);
  margin-bottom: 20px;
}

/* Pagination */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 24px;
}

.pagination-btn {
  padding: 8px 14px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--gray-700);
  font-size: 14px;
  transition: var(--transition-fast);
}

.pagination-btn:hover:not(:disabled) {
  background: var(--gray-100);
  border-color: var(--gray-400);
}

.pagination-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.pagination-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--white);
}

/* Error Page */
.error-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  padding: 20px;
}

.error-container {
  text-align: center;
  color: var(--white);
}

.error-code {
  font-size: 120px;
  font-weight: 700;
  line-height: 1;
  opacity: 0.3;
}

.error-message {
  font-size: 24px;
  margin: 20px 0;
}

.error-description {
  opacity: 0.8;
  margin-bottom: 30px;
}

/* Responsive */
@media (max-width: 1024px) {
  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .sidebar-overlay.active {
    display: block;
  }

  .main-content {
    margin-left: 0;
  }

  .mobile-menu-btn {
    display: flex;
  }
}

@media (max-width: 768px) {
  .page-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .table-actions {
    flex-direction: column;
  }

  .auth-card {
    padding: 30px 20px;
  }

  .social-login {
    flex-direction: column;
  }
}

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

  .header-search {
    display: none;
  }

  .user-name-header {
    display: none;
  }
}