/* ============================================
   TalentSync Enhanced Design System
   Modern, Professional, and Beautiful UI
   ============================================ */

:root {
  /* Primary Color Palette */
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #3b82f6;
  --primary-lighter: #dbeafe;
  --secondary: #64748b;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --info: #06b6d4;
  
  /* Neutral Colors */
  --light: #f8fafc;
  --dark: #0f172a;
  --body-bg: #f1f5f9;
  --body-color: #1e293b;
  --border-color: #e2e8f0;
  --border-radius: 12px;
  --border-radius-lg: 16px;
  --border-radius-sm: 8px;
  
  /* Shadows */
  --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 2px 4px -1px rgba(0, 0, 0, 0.06), 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Typography */
  --font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  
  /* Z-index scale */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
}

/* ============================================
   Base Styles
   ============================================ */

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
  margin: 0;
  padding: 0;
  min-height: 100vh;
  color: var(--body-color);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   Typography
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--dark);
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

p {
  margin-bottom: var(--spacing-md);
  color: var(--body-color);
}

.text-primary { color: var(--primary) !important; }
.text-secondary { color: var(--secondary) !important; }
.text-muted { color: var(--secondary) !important; }
.text-success { color: var(--success) !important; }
.text-danger { color: var(--danger) !important; }
.text-warning { color: var(--warning) !important; }

/* ============================================
   Navigation
   ============================================ */

.navbar {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: var(--spacing-md) var(--spacing-xl);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  border-bottom: 1px solid var(--border-color);
  transition: all var(--transition-base);
}

.navbar-brand {
  font-weight: 800;
  font-size: var(--font-size-2xl);
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  transition: transform var(--transition-base);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.navbar-brand:hover {
  transform: translateY(-1px);
}

/* Removed decorative square beside brand to avoid duplicate logo elements */

/* Force-hide any decorative pseudo-element that may show a square next to the brand */
.navbar-brand::before {
  display: none !important;
  content: none !important;
}

/* pageFade removed — header/nav should not fade; content-only fade is used via .fade-in */

/* Reusable content fade-in used by tab panes and main content areas */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: none; }
}
.fade-in {
  animation: fadeIn 420ms cubic-bezier(0.2,0,0,1) both;
}

.nav-link {
  color: var(--body-color);
  margin: 0 var(--spacing-md);
  font-weight: 500;
  position: relative;
  transition: color var(--transition-fast);
  padding: var(--spacing-sm) 0 !important;
}

.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  height: 2px;
  width: 0;
  background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 100%);
  transition: width var(--transition-base);
  border-radius: 2px;
}

.nav-link:hover {
  color: var(--primary);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-link.active {
  color: var(--primary);
  font-weight: 600;
}

/* ============================================
   Buttons
   ============================================ */

.btn {
  font-weight: 600;
  border-radius: var(--border-radius-sm);
  padding: 0.75rem 1.5rem;
  transition: all var(--transition-base);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  border: none;
  cursor: pointer;
  font-size: var(--font-size-base);
  line-height: 1.5;
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  box-shadow: var(--shadow-xl);
  color: white;
}

.btn-outline-primary {
  border: 2px solid var(--primary);
  color: var(--primary);
  background: transparent;
}

.btn-outline-primary:hover {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

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

.btn-secondary:hover {
  background: #475569;
  color: white;
}

.btn-outline-secondary {
  border: 2px solid var(--border-color);
  color: var(--secondary);
  background: transparent;
}

.btn-outline-secondary:hover {
  background: var(--light);
  border-color: var(--secondary);
  color: var(--secondary);
}

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

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

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

.btn-success:hover {
  background: #059669;
  color: white;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: var(--font-size-sm);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: var(--font-size-lg);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
}

/* ============================================
   Cards & Containers
   ============================================ */

.container-card {
  max-width: 1200px;
  margin: var(--spacing-xl) auto;
  padding: var(--spacing-xl);
  background: white;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
}

.card {
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
  background: white;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  overflow: hidden;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-lighter);
}

.card-header {
  padding: var(--spacing-lg);
  background: var(--light);
  border-bottom: 1px solid var(--border-color);
  font-weight: 600;
  border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.card-body {
  padding: var(--spacing-lg);
}

.card-footer {
  padding: var(--spacing-lg);
  background: var(--light);
  border-top: 1px solid var(--border-color);
  border-radius: 0 0 var(--border-radius) var(--border-radius);
}

/* ============================================
   Forms
   ============================================ */

.form-control,
.form-select {
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  padding: 0.75rem 1rem;
  font-size: var(--font-size-base);
  transition: all var(--transition-base);
  background: white;
  width: 100%;
}

.form-control:focus,
.form-select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
  background: white;
}

.form-control:hover {
  border-color: #cbd5e1;
}

.form-label {
  font-weight: 600;
  color: var(--dark);
  margin-bottom: var(--spacing-sm);
  display: block;
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-floating > .form-control {
  padding: 1rem 0.75rem;
  height: calc(3.5rem + 4px);
}

.form-floating > label {
  padding: 1rem 0.75rem;
  color: var(--secondary);
}

.input-group {
  position: relative;
}

.input-group-text {
  background: var(--light);
  border: 2px solid var(--border-color);
  border-right: none;
  color: var(--secondary);
}

.input-group .form-control {
  border-left: none;
}

.input-group .form-control:focus {
  border-left: 2px solid var(--primary);
}

/* ============================================
   Modals
   ============================================ */

.modal-content {
  border: none;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-2xl);
  overflow: hidden;
}

.modal-header {
  background: linear-gradient(135deg, var(--light) 0%, white 100%);
  border-bottom: 1px solid var(--border-color);
  padding: var(--spacing-lg) var(--spacing-xl);
}

.modal-title {
  font-weight: 700;
  color: var(--dark);
}

.modal-body {
  padding: var(--spacing-xl);
}

.modal-footer {
  border-top: 1px solid var(--border-color);
  padding: var(--spacing-lg) var(--spacing-xl);
  background: var(--light);
}

.btn-close {
  opacity: 0.5;
  transition: opacity var(--transition-fast);
}

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

/* ============================================
   Badges
   ============================================ */

.badge {
  padding: 0.5rem 0.75rem;
  font-weight: 600;
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.badge-primary {
  background: var(--primary-lighter);
  color: var(--primary-dark);
}

.badge-success {
  background: #d1fae5;
  color: #065f46;
}

.badge-danger {
  background: #fee2e2;
  color: #991b1b;
}

.badge-warning {
  background: #fef3c7;
  color: #92400e;
}

.badge-secondary {
  background: #f1f5f9;
  color: var(--secondary);
}

/* ============================================
   Alerts & Toasts
   ============================================ */

.alert {
  border: none;
  border-radius: var(--border-radius);
  padding: var(--spacing-md) var(--spacing-lg);
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.alert-success {
  background: #d1fae5;
  color: #065f46;
  border-left: 4px solid var(--success);
}

.alert-danger {
  background: #fee2e2;
  color: #991b1b;
  border-left: 4px solid var(--danger);
}

.alert-warning {
  background: #fef3c7;
  color: #92400e;
  border-left: 4px solid var(--warning);
}

.alert-info {
  background: #cffafe;
  color: #164e63;
  border-left: 4px solid var(--info);
}

.toast {
  border: none;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-xl);
}

.toast-header {
  background: var(--light);
  border-bottom: 1px solid var(--border-color);
}

/* ============================================
   Profile Components
   ============================================ */

.profile-header {
  background: linear-gradient(to right, #f8f9fa, #ffffff 100%);
  color: white;
  padding: var(--spacing-2xl) var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  margin-bottom: var(--spacing-xl);
  box-shadow: var(--shadow-lg);
}

.profile-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  border: 4px solid white;
  box-shadow: var(--shadow-xl);
  object-fit: cover;
}

.profile-icon {
  cursor: pointer;
  transition: all var(--transition-base);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--light);
}

.profile-icon:hover {
  transform: scale(1.1);
  background: var(--primary-lighter);
  color: var(--primary);
}

.profile-menu {
  background: white;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-xl);
  padding: var(--spacing-sm);
  min-width: 200px;
  border: 1px solid var(--border-color);
  animation: slideDown 0.2s ease;
}

.profile-menu a {
  display: block;
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--body-color);
  text-decoration: none;
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-fast);
  font-weight: 500;
}

.profile-menu a:hover {
  background: var(--primary-lighter);
  color: var(--primary);
  transform: translateX(4px);
}

/* ============================================
   Upload Areas
   ============================================ */

.upload-area {
  border: 2px dashed var(--border-color);
  border-radius: var(--border-radius);
  padding: var(--spacing-xl);
  text-align: center;
  background: var(--light);
  transition: all var(--transition-base);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.upload-area::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
  transition: left 0.5s;
}

.upload-area:hover::before {
  left: 100%;
}

.upload-area:hover {
  border-color: var(--primary);
  background: var(--primary-lighter);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.upload-area.dragover {
  border-color: var(--primary);
  background: var(--primary-lighter);
  transform: scale(1.02);
}

/* ============================================
   Job Cards
   ============================================ */

.job-card {
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
  background: white;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.job-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--primary);
  transform: scaleY(0);
  transition: transform var(--transition-base);
}

.job-card:hover::before {
  transform: scaleY(1);
}

.job-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-lighter);
}

.job-title {
  font-weight: 700;
  color: var(--primary);
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-size-xl);
}

.job-meta {
  color: var(--secondary);
  font-size: var(--font-size-sm);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.job-meta i {
  opacity: 0.7;
}

/* ============================================
   Sidebar
   ============================================ */

.sidebar {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: 280px;
  background: white;
  box-shadow: var(--shadow-lg);
  padding: var(--spacing-lg);
  padding-top: 100px;
  z-index: var(--z-fixed);
  border-right: 1px solid var(--border-color);
  overflow-y: auto;
}

.nav-pills .nav-link {
  color: var(--body-color);
  padding: var(--spacing-md) var(--spacing-lg);
  margin: var(--spacing-xs) 0;
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  font-weight: 500;
  transition: all var(--transition-base);
  border: none;
  background: transparent;
}

.nav-pills .nav-link:hover {
  background: var(--primary-lighter);
  color: var(--primary);
  transform: translateX(4px);
}

.nav-pills .nav-link.active {
  background: linear-gradient(135deg, var(--primary-lighter) 0%, rgba(219, 234, 254, 0.5) 100%);
  color: var(--primary);
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}

.nav-pills .nav-link i {
  font-size: var(--font-size-lg);
  width: 20px;
  text-align: center;
}

/* ============================================
   Animations
   ============================================ */

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.fade-in {
  animation: fadeIn 0.4s ease;
}

.slide-down {
  animation: slideDown 0.3s ease;
}

.slide-up {
  animation: slideUp 0.3s ease;
}

.scale-in {
  animation: scaleIn 0.3s ease;
}

/* ============================================
   Utilities
   ============================================ */

.shadow-hover {
  transition: all var(--transition-base);
}

.shadow-hover:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.text-gradient {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.bg-gradient-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
}

/* ============================================
   Scrollbar
   ============================================ */

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--light);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 10px;
  transition: background var(--transition-base);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--secondary);
}

/* ============================================
   Loading States
   ============================================ */

.spinner-border {
  width: 1rem;
  height: 1rem;
  border-width: 2px;
  animation: spinner-border 0.75s linear infinite;
}

@keyframes spinner-border {
  to {
    transform: rotate(360deg);
  }
}

.skeleton {
  background: linear-gradient(90deg, var(--light) 25%, #e2e8f0 50%, var(--light) 75%);
  background-size: 200% 100%;
  animation: loading 1.5s ease-in-out infinite;
  border-radius: var(--border-radius-sm);
}

@keyframes loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 768px) {
  .container-card {
    margin: var(--spacing-md);
    padding: var(--spacing-lg);
  }

  .navbar {
    padding: var(--spacing-md);
  }

  .navbar-brand {
    font-size: var(--font-size-xl);
  }

  .nav-link {
    margin: 0 var(--spacing-sm);
    font-size: var(--font-size-sm);
  }

  .sidebar {
    width: 100%;
    transform: translateX(-100%);
    transition: transform var(--transition-base);
  }

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

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

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

  .profile-header {
    padding: var(--spacing-xl) var(--spacing-lg);
  }

  h1 { font-size: var(--font-size-3xl); }
  h2 { font-size: var(--font-size-2xl); }
  h3 { font-size: var(--font-size-xl); }
}

@media (max-width: 576px) {
  .container-card {
    margin: var(--spacing-sm);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
  }

  .card {
    padding: var(--spacing-md);
  }

  .btn {
    padding: 0.625rem 1rem;
    font-size: var(--font-size-sm);
  }
}

/* ============================================
   Print Styles
   ============================================ */

@media print {
  .navbar,
  .sidebar,
  .btn,
  .profile-icon {
    display: none !important;
  }

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

  .container-card {
    box-shadow: none;
    border: 1px solid #ddd;
  }
}