/* ====================================
   AI Reels Planner - Modern UI Styles
   ==================================== */

/* Import Modern Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

/* ====================================
   CSS Variables - Design Tokens
   ==================================== */
:root {
  /* Typography */
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: 'Outfit', 'Inter', sans-serif;
  
  /* Primary Gradient Colors */
  --color-primary-start: #8B5CF6;
  --color-primary-end: #3B82F6;
  --gradient-primary: linear-gradient(135deg, var(--color-primary-start) 0%, var(--color-primary-end) 100%);
  
  /* Accent Gradient */
  --color-accent-start: #EC4899;
  --color-accent-end: #F59E0B;
  --gradient-accent: linear-gradient(135deg, var(--color-accent-start) 0%, var(--color-accent-end) 100%);
  
  /* Success Gradient */
  --color-success-start: #10B981;
  --color-success-end: #059669;
  --gradient-success: linear-gradient(135deg, var(--color-success-start) 0%, var(--color-success-end) 100%);
  
  /* Background Gradients */
  --gradient-bg-light: linear-gradient(180deg, #f8f9fa 0%, #e9ecef 100%);
  --gradient-bg-dark: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.2);
  --shadow-glow: 0 0 24px rgba(139, 92, 246, 0.4);
  
  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.1);
  --glass-border: rgba(255, 255, 255, 0.2);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* ====================================
   Base Typography
   ==================================== */
body {
  font-family: var(--font-body);
  background: var(--gradient-bg-light);
  background-attachment: fixed;
  line-height: 1.6;
  font-weight: 400;
}

h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: -0.02em;
}

h3, .h3 {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ====================================
   Enhanced Navbar
   ==================================== */
.navbar-dark {
  background: var(--gradient-bg-dark) !important;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.navbar-brand {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.5rem;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 0 30px rgba(236, 72, 153, 0.5);
  transition: all var(--transition-base);
  letter-spacing: -0.03em;
}

.navbar-brand:hover {
  transform: scale(1.05);
  filter: brightness(1.2);
}

.nav-link {
  position: relative;
  transition: all var(--transition-base);
  font-weight: 500;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  right: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-accent);
  transition: width var(--transition-base);
}

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

.nav-link:hover {
  transform: translateY(-2px);
  color: #fff !important;
}

/* ====================================
   Enhanced Cards
   ==================================== */
.card {
  border: none;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  overflow: hidden;
  position: relative;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.card:hover::before {
  opacity: 1;
}

.card.border-primary {
  border: 2px solid transparent;
  background-image: 
    linear-gradient(white, white),
    var(--gradient-primary);
  background-origin: border-box;
  background-clip: padding-box, border-box;
}

.card.border-primary:hover {
  box-shadow: var(--shadow-glow);
}

.card-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.card-body {
  padding: 1.5rem;
}

/* ====================================
   Enhanced Buttons
   ==================================== */
.btn {
  border-radius: 12px;
  font-weight: 600;
  padding: 0.625rem 1.5rem;
  transition: all var(--transition-base);
  border: none;
  position: relative;
  overflow: hidden;
  font-family: var(--font-body);
}

.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 var(--transition-slow), height var(--transition-slow);
}

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

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

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

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #7C3AED 0%, #2563EB 100%);
  box-shadow: 0 8px 20px rgba(139, 92, 246, 0.4);
}

.btn-success {
  background: var(--gradient-success);
  color: white;
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.btn-success:hover {
  background: linear-gradient(135deg, #059669 0%, #047857 100%);
  box-shadow: 0 8px 20px rgba(16, 185, 129, 0.4);
}

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

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

.btn-outline-secondary {
  border: 2px solid #6c757d;
  color: #6c757d;
  background: transparent;
}

.btn-outline-secondary:hover {
  background: linear-gradient(135deg, #6c757d 0%, #495057 100%);
  color: white;
  border-color: transparent;
}

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

.btn-outline-warning:hover {
  background: var(--gradient-accent);
  color: white;
  border-color: transparent;
}

.btn-sm {
  padding: 0.375rem 1rem;
  font-size: 0.875rem;
  border-radius: 8px;
}

/* ====================================
   Enhanced Tables
   ==================================== */
.table {
  border-radius: 12px;
  overflow: hidden;
}

.table thead {
  background: var(--gradient-primary);
  color: white;
}

.table thead th {
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.875rem;
  letter-spacing: 0.5px;
  border: none;
  padding: 1rem;
}

.table tbody tr {
  transition: all var(--transition-fast);
  border-bottom: 1px solid #e9ecef;
}

.table-hover tbody tr:hover {
  background: linear-gradient(90deg, rgba(139, 92, 246, 0.05) 0%, rgba(59, 130, 246, 0.05) 100%);
  transform: scale(1.01);
  box-shadow: var(--shadow-sm);
}

.table tbody td {
  padding: 1rem;
  vertical-align: middle;
}

.table code {
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  padding: 0.25rem 0.5rem;
  border-radius: 6px;
  font-size: 0.875rem;
  color: var(--color-primary-start);
  font-weight: 500;
}

/* ====================================
   Enhanced Badges
   ==================================== */
.badge {
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  box-shadow: var(--shadow-sm);
}

.badge.bg-success {
  background: var(--gradient-success) !important;
}

.badge.bg-primary {
  background: var(--gradient-primary) !important;
}

.badge.bg-secondary {
  background: linear-gradient(135deg, #6c757d 0%, #495057 100%) !important;
}

.badge.bg-light {
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%) !important;
  color: #495057;
}

/* ====================================
   Enhanced Forms
   ==================================== */
.form-control,
.form-select {
  border: 2px solid #e9ecef;
  border-radius: 12px;
  padding: 0.75rem 1rem;
  transition: all var(--transition-base);
  font-family: var(--font-body);
}

.form-control:focus,
.form-select:focus {
  border-color: var(--color-primary-start);
  box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.1);
  outline: none;
}

.form-label {
  font-weight: 600;
  color: #495057;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
}

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

/* ====================================
   Enhanced Modals
   ==================================== */
.modal-content {
  border: none;
  border-radius: 20px;
  box-shadow: var(--shadow-xl);
  backdrop-filter: blur(20px);
  background: rgba(255, 255, 255, 0.98);
}

.modal-header {
  background: var(--gradient-primary);
  color: white;
  border-radius: 20px 20px 0 0;
  padding: 1.5rem;
  border: none;
}

.modal-title {
  font-family: var(--font-heading);
  font-weight: 700;
}

.modal-body {
  padding: 2rem;
}

.modal-footer {
  border: none;
  padding: 1.5rem;
  background: #f8f9fa;
  border-radius: 0 0 20px 20px;
}

.btn-close {
  filter: brightness(0) invert(1);
}

/* ====================================
   Page-Specific Enhancements
   ==================================== */

/* Home Dashboard */
.mb-4 h3 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.text-muted {
  color: #6c757d !important;
  font-size: 1rem;
}

/* Container */
.container {
  max-width: 1200px;
}

main.container {
  animation: fadeIn 0.5s ease;
}

/* ====================================
   Utility Classes
   ==================================== */

/* Gradient Text */
.gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.gradient-text-accent {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Glass Effect */
.glass {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideIn {
  from {
    transform: translateX(-100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.animate-fade-in {
  animation: fadeIn 0.6s ease;
}

.animate-slide-in {
  animation: slideIn 0.5s ease;
}

/* Hover Lift Effect */
.hover-lift {
  transition: transform var(--transition-base);
}

.hover-lift:hover {
  transform: translateY(-4px);
}

/* ====================================
   Responsive Adjustments
   ==================================== */
@media (max-width: 768px) {
  .card-body {
    padding: 1.25rem;
  }
  
  .btn {
    padding: 0.5rem 1.25rem;
  }
  
  h3, .h3 {
    font-size: 1.5rem;
  }
  
  .navbar-brand {
    font-size: 1.25rem;
  }
}

/* ====================================
   Enhanced Shadows & Depth
   ==================================== */
.shadow-sm {
  box-shadow: var(--shadow-sm) !important;
}

.shadow {
  box-shadow: var(--shadow-md) !important;
}

.shadow-lg {
  box-shadow: var(--shadow-lg) !important;
}

/* ====================================
   Loading States
   ==================================== */
.loading-pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

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

/* ====================================
   Custom Scrollbar
   ==================================== */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: #f8f9fa;
}

::-webkit-scrollbar-thumb {
  background: var(--gradient-primary);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(135deg, #7C3AED 0%, #2563EB 100%);
}