/* TLCNA Event Manager - Main Stylesheet */
/* Modern, beautiful design with excellent UX */

:root {
  /* Color Palette - Modern Professional */
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --secondary: #64748b;
  --success: #10b981;
  --success-light: #f0fdf4;
  --warning: #f59e0b;
  --warning-light: #fffbeb;
  --danger: #ef4444;
  --danger-light: #fef2f2;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;
  --white: #ffffff;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  
  /* Border radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: var(--gray-800);
  background-color: var(--gray-50);
  -webkit-font-smoothing: antialiased;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: var(--spacing-md);
  color: var(--gray-900);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }

/* Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container-sm {
  max-width: 600px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Header */
.header {
  background: var(--white);
  border-bottom: 1px solid var(--gray-200);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  text-decoration: none;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--primary-hover));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 700;
}

/* Main Content */
.main {
  min-height: calc(100vh - 80px);
  padding: var(--spacing-2xl) 0;
}

/* Cards */
.card {
  background: var(--white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  padding: var(--spacing-2xl);
  margin-bottom: var(--spacing-xl);
  border: 1px solid var(--gray-100);
}

/* Forms */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: var(--spacing-sm);
  font-size: 0.875rem;
}

.form-label.required::after {
  content: ' *';
  color: var(--danger);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--spacing-md);
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-lg);
  font-size: 1rem;
  background-color: var(--white);
  transition: all 0.2s ease;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}

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

.form-row {
  display: grid;
  gap: var(--spacing-lg);
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  border: none;
  border-radius: var(--radius-lg);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s ease;
  min-height: 48px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-hover));
  color: var(--white);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.btn-lg {
  padding: var(--spacing-lg) var(--spacing-2xl);
  font-size: 1.125rem;
  min-height: 56px;
}

.btn-block {
  width: 100%;
}

/* Hero Section */
.hero {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.hero h1 {
  background: linear-gradient(135deg, var(--primary), var(--primary-hover));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-md);
}

.hero p {
  font-size: 1.125rem;
  color: var(--gray-600);
  max-width: 600px;
  margin: 0 auto var(--spacing-xl);
}

/* Responsive */
@media (max-width: 768px) {
  .form-row.two-cols {
    grid-template-columns: 1fr;
  }
  
  h1 { font-size: 2rem; }
  
  .container {
    padding: 0 var(--spacing-sm);
  }
  
  .card {
    padding: var(--spacing-lg);
  }
}

/* Form Error Styling */
.form-error {
  color: var(--danger);
  font-size: 0.875rem;
  margin-top: var(--spacing-xs);
  font-weight: 500;
}

/* Admin Navigation */
.nav-admin {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
}

.nav-admin ul {
  list-style: none;
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  margin: 0;
  padding: 0;
}

.nav-admin li {
  margin: 0;
}

.nav-admin a {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--gray-600);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: all 0.2s ease;
  font-weight: 500;
  font-size: 0.875rem;
  border: 1px solid transparent;
}

.nav-admin a:hover {
  background: var(--primary-light);
  color: var(--primary);
  border-color: var(--primary-light);
  transform: translateY(-1px);
}

.nav-admin a.active {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

/* Card Enhancements for Admin Pages */
.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--gray-200);
}

.card-header .pagination {
  margin-top: var(--spacing-xs);
}

@media (max-width: 768px) {
  .card-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-md);
  }
}

.card-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: var(--spacing-xs);
}

.card-subtitle {
  color: var(--gray-600);
  font-size: 0.875rem;
  margin-bottom: 0;
}

/* Tables */
.table {
  width: 100%;
  border-collapse: collapse;
  margin-top: var(--spacing-md);
}

.table th,
.table td {
  padding: var(--spacing-md);
  text-align: left;
  border-bottom: 1px solid var(--gray-200);
  vertical-align: top;
}

.table th {
  background: var(--gray-50);
  font-weight: 600;
  color: var(--gray-700);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

.table tbody tr {
  transition: background-color 0.2s ease;
}

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

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

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

.badge-pending {
  background: var(--warning-light);
  color: #92400e;
}

.badge-approved {
  background: var(--success-light);
  color: #065f46;
}



.badge-completed {
  background: var(--gray-100);
  color: var(--gray-600);
}

.badge-declined {
  background: var(--danger-light);
  color: #991b1b;
}

/* Button Variations */
.btn-sm {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: 0.875rem;
  min-height: 36px;
}

.btn-secondary {
  background: var(--gray-100);
  color: var(--gray-700);
  border: 1px solid var(--gray-300);
}

.btn-secondary:hover {
  background: var(--gray-200);
  color: var(--gray-800);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-success {
  background: var(--success);
  color: var(--white);
  border: 1px solid var(--success);
}

.btn-success:hover {
  background: #059669;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-warning {
  background: var(--warning);
  color: var(--white);
  border: 1px solid var(--warning);
}

.btn-warning:hover {
  background: #d97706;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-danger {
  background: var(--danger);
  color: var(--white);
  border: 1px solid var(--danger);
}

.btn-danger:hover {
  background: #dc2626;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* User Menu */
.user-menu {
  position: relative;
  display: inline-block;
}

.user-button {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--gray-100);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--gray-700);
  transition: all 0.2s ease;
}

.user-button:hover {
  background: var(--gray-200);
}

.user-avatar {
  width: 32px;
  height: 32px;
  background: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 600;
  font-size: 0.75rem;
}

/* Mobile Responsive Navigation */
@media (max-width: 768px) {
  .nav-admin ul {
    flex-direction: column;
    gap: var(--spacing-xs);
  }
  
  .nav-admin a {
    justify-content: flex-start;
    width: 100%;
    padding: var(--spacing-md);
  }
  
  .table {
    font-size: 0.875rem;
  }
  
  .table th,
  .table td {
    padding: var(--spacing-sm);
  }
  
  .user-button {
    padding: var(--spacing-xs) var(--spacing-sm);
  }
  
  .user-avatar {
    width: 28px;
    height: 28px;
    font-size: 0.7rem;
  }
}

/* Responsive Table Wrapper */
.table-responsive {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.table-responsive .table {
  min-width: 600px;
}

/* Notification Styles */
.event-name-container {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.notification-badge {
  background: var(--danger);
  color: var(--white);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 10px;
  min-width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.event-name.has-unread {
  font-weight: 700;
  color: var(--gray-900);
}

.title-flash {
  animation: titleFlash 2s infinite;
}

@keyframes titleFlash {
  0%, 50% { opacity: 1; }
  25%, 75% { opacity: 0.6; }
}

/* Enhanced notification styles */
.table tbody tr.has-unread-messages {
  border-left: 4px solid var(--danger);
  background: linear-gradient(90deg, #fef2f2 0%, var(--white) 25%);
  box-shadow: 0 2px 4px rgba(239, 68, 68, 0.1);
}

.table tbody tr.has-unread-messages:hover {
  background: linear-gradient(90deg, #fee2e2 0%, var(--gray-50) 25%);
}

.notification-badge {
  background: var(--danger);
  color: var(--white);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  margin-left: var(--spacing-lg);
  box-shadow: 0 2px 6px rgba(239, 68, 68, 0.4);
  animation: pulse 2s infinite;
  white-space: nowrap;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}