/* ========================================
   🎨 MODERN UI FRAMEWORK FOR FINDIFY
   Professional, Interactive & Responsive
   ======================================== */

:root {
  /* 🎯 Color Palette */
  --primary: #667eea;
  --primary-dark: #5568d3;
  --primary-light: #8b9ef5;
  --secondary: #764ba2;
  --accent: #f093fb;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #3b82f6;
  
  /* Neutrals */
  --dark: #1f2937;
  --dark-gray: #374151;
  --gray: #6b7280;
  --light-gray: #d1d5db;
  --lighter-gray: #e5e7eb;
  --white: #ffffff;
  --bg-light: #f9fafb;
  --bg-lighter: #f3f4f6;
  
  /* 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: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 400ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ========================================
   🔷 ANIMATIONS
   ======================================== */

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { 
    opacity: 0; 
    transform: translateY(20px); 
  }
  to { 
    opacity: 1; 
    transform: translateY(0); 
  }
}

@keyframes slideDown {
  from { 
    opacity: 0; 
    transform: translateY(-20px); 
  }
  to { 
    opacity: 1; 
    transform: translateY(0); 
  }
}

@keyframes slideLeft {
  from { 
    opacity: 0; 
    transform: translateX(20px); 
  }
  to { 
    opacity: 1; 
    transform: translateX(0); 
  }
}

@keyframes slideRight {
  from { 
    opacity: 0; 
    transform: translateX(-20px); 
  }
  to { 
    opacity: 1; 
    transform: translateX(0); 
  }
}

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

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

@keyframes glow {
  0%, 100% { box-shadow: 0 0 5px rgba(102, 126, 234, 0.3); }
  50% { box-shadow: 0 0 20px rgba(102, 126, 234, 0.6); }
}

@keyframes shimmer {
  0% { background-position: -1000px 0; }
  100% { background-position: 1000px 0; }
}

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

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

/* ========================================
   📱 BASE STYLES
   ======================================== */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
  color: var(--dark);
  background-color: var(--white);
  line-height: 1.6;
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: 0.3px;
}

body.dark-mode {
  background-color: var(--dark);
  color: var(--white);
}

/* ========================================
   🎯 BUTTONS
   ======================================== */

.btn {
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-lg);
  border: none;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all var(--transition-smooth);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  position: relative;
  overflow: hidden;
  letter-spacing: 0.5px;
}

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

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

/* Primary Button */
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  box-shadow: var(--shadow-md);
}

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

.btn-primary:active {
  transform: translateY(0);
  box-shadow: var(--shadow-md);
}

/* Secondary Button */
.btn-secondary {
  background: var(--white);
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-secondary:hover {
  background: var(--primary);
  color: white;
  transform: translateY(-2px);
}

/* Success Button */
.btn-success {
  background: var(--success);
  color: white;
  box-shadow: var(--shadow-md);
}

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

/* Danger Button */
.btn-danger {
  background: var(--danger);
  color: white;
  box-shadow: var(--shadow-md);
}

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

/* Outline Button */
.btn-outline {
  background: transparent;
  border: 2px solid var(--light-gray);
  color: var(--dark);
  transition: all var(--transition-smooth);
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
}

/* Rounded Button */
.btn-rounded {
  border-radius: var(--radius-full);
  padding: 0.75rem 2rem;
}

/* Icon Button */
.btn-icon {
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Loading State */
.btn.loading {
  opacity: 0.7;
  pointer-events: none;
}

.btn.loading::after {
  content: '';
  display: inline-block;
  width: 1rem;
  height: 1rem;
  margin-left: 0.5rem;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: rotate 0.8s linear infinite;
}

/* ========================================
   🎨 CARDS
   ======================================== */

.card {
  border: none;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-smooth);
  background: var(--white);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  overflow: hidden;
}

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

.card.elevated {
  box-shadow: var(--shadow-lg);
}

.card.elevated:hover {
  box-shadow: var(--shadow-2xl);
  transform: translateY(-8px);
}

.card-header {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  border: none;
  padding: var(--spacing-lg);
  font-weight: 600;
  position: relative;
}

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

.card-title {
  color: var(--dark);
  font-weight: 700;
  font-size: 1.25rem;
  margin-bottom: var(--spacing-md);
}

.card-text {
  color: var(--gray);
  line-height: 1.7;
}

/* ========================================
   📝 FORMS
   ======================================== */

.form-control,
.form-select {
  padding: 0.75rem 1rem;
  border: 2px solid var(--lighter-gray);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-family: 'Poppins', sans-serif;
  transition: all var(--transition-smooth);
  background-color: var(--bg-light);
  color: var(--dark);
  font-weight: 500;
}

.form-control:focus,
.form-select:focus {
  outline: none;
  border-color: var(--primary);
  background-color: var(--white);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
  transform: translateY(-2px);
}

.form-control::placeholder {
  color: var(--gray);
  font-weight: 400;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--dark);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.input-group {
  position: relative;
  display: flex;
}

.input-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--gray);
  pointer-events: none;
}

.input-group .form-control {
  padding-left: 2.75rem;
}

.input-group .form-control:focus ~ .input-icon {
  color: var(--primary);
}

/* Form Validation */
.form-control.is-invalid {
  border-color: var(--danger);
}

.form-control.is-invalid:focus {
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form-control.is-valid {
  border-color: var(--success);
}

.form-control.is-valid:focus {
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.invalid-feedback {
  color: var(--danger);
  font-size: 0.85rem;
  margin-top: 0.25rem;
  display: block;
}

.valid-feedback {
  color: var(--success);
  font-size: 0.85rem;
  margin-top: 0.25rem;
  display: block;
}

/* ========================================
   🏷️ BADGES & TAGS
   ======================================== */

.badge {
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.8rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: all var(--transition-smooth);
}

.badge-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
}

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

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

.badge-danger {
  background: rgba(239, 68, 68, 0.1);
  color: var(--danger);
}

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

.badge:hover {
  transform: scale(1.05);
}

/* ========================================
   ⭐ RATINGS
   ======================================== */

.rating {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.rating-star {
  color: var(--lighter-gray);
  font-size: 1.25rem;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.rating-star.filled {
  color: var(--warning);
  animation: scaleIn var(--transition-bounce);
}

.rating:hover .rating-star {
  transform: scale(1.1);
}

.rating-text {
  color: var(--gray);
  font-size: 0.9rem;
  margin-left: 0.5rem;
  font-weight: 500;
}

/* ========================================
   💬 ALERTS & NOTIFICATIONS
   ======================================== */

.alert {
  padding: 1rem 1.5rem;
  border-radius: var(--radius-lg);
  border: none;
  border-left: 4px solid;
  display: flex;
  align-items: center;
  gap: 1rem;
  animation: slideDown var(--transition-smooth);
  margin-bottom: var(--spacing-lg);
}

.alert-success {
  background: rgba(16, 185, 129, 0.1);
  border-left-color: var(--success);
  color: var(--success);
}

.alert-danger {
  background: rgba(239, 68, 68, 0.1);
  border-left-color: var(--danger);
  color: var(--danger);
}

.alert-warning {
  background: rgba(245, 158, 11, 0.1);
  border-left-color: var(--warning);
  color: var(--warning);
}

.alert-info {
  background: rgba(59, 130, 246, 0.1);
  border-left-color: var(--info);
  color: var(--info);
}

.alert-icon {
  font-size: 1.25rem;
  flex-shrink: 0;
}

.alert-close {
  background: none;
  border: none;
  cursor: pointer;
  color: inherit;
  opacity: 0.7;
  transition: opacity var(--transition-fast);
  margin-left: auto;
  padding: 0;
  font-size: 1.25rem;
}

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

/* ========================================
   🎯 LOADING STATES
   ======================================== */

.spinner {
  display: inline-block;
  width: 1.5rem;
  height: 1.5rem;
  border: 3px solid rgba(102, 126, 234, 0.1);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: rotate 0.8s linear infinite;
}

.spinner-sm {
  width: 1rem;
  height: 1rem;
  border-width: 2px;
}

.spinner-lg {
  width: 2rem;
  height: 2rem;
  border-width: 4px;
}

.skeleton {
  background: linear-gradient(
    90deg,
    var(--lighter-gray) 0%,
    var(--white) 50%,
    var(--lighter-gray) 100%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-md);
}

/* ========================================
   🎓 TOOLTIPS & POPOVERS
   ======================================== */

.tooltip {
  position: relative;
  display: inline-block;
}

.tooltip .tooltip-text {
  visibility: hidden;
  width: 200px;
  background: var(--dark);
  color: white;
  text-align: center;
  border-radius: var(--radius-md);
  padding: 0.5rem 1rem;
  position: absolute;
  z-index: 1000;
  bottom: 125%;
  left: 50%;
  transform: translateX(-50%);
  opacity: 0;
  transition: opacity var(--transition-smooth);
  font-size: 0.85rem;
  font-weight: 500;
  white-space: nowrap;
  box-shadow: var(--shadow-lg);
}

.tooltip .tooltip-text::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  margin-left: -5px;
  border-width: 5px;
  border-style: solid;
  border-color: var(--dark) transparent transparent transparent;
}

.tooltip:hover .tooltip-text {
  visibility: visible;
  opacity: 1;
}

/* ========================================
   🔍 MODALS & OVERLAYS
   ======================================== */

.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(5px);
  animation: fadeIn var(--transition-smooth);
}

.modal.show {
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-content {
  background-color: var(--white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-2xl);
  width: 90%;
  max-width: 500px;
  animation: scaleIn var(--transition-bounce);
  overflow: hidden;
}

.modal-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--lighter-gray);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.modal-footer {
  padding: var(--spacing-lg);
  border-top: 1px solid var(--lighter-gray);
  display: flex;
  gap: var(--spacing-md);
  justify-content: flex-end;
}

/* ========================================
   📊 PROGRESS & BARS
   ======================================== */

.progress {
  height: 0.5rem;
  background-color: var(--lighter-gray);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  animation: slideRight var(--transition-bounce);
  border-radius: var(--radius-full);
  transition: width var(--transition-smooth);
}

.progress-bar.animated {
  animation: shimmer 1.5s infinite;
}

/* ========================================
   🌐 RESPONSIVE UTILITIES
   ======================================== */

.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }
.gap-xl { gap: var(--spacing-xl); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }
.p-xl { padding: var(--spacing-xl); }

.rounded-sm { border-radius: var(--radius-sm); }
.rounded-md { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-full { border-radius: var(--radius-full); }

/* ========================================
   ♿ ACCESSIBILITY
   ======================================== */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* ========================================
   📱 MOBILE RESPONSIVE
   ======================================== */

@media (max-width: 768px) {
  :root {
    --spacing-lg: 1rem;
    --spacing-xl: 1.5rem;
  }

  .btn {
    padding: 0.65rem 1.25rem;
    font-size: 0.9rem;
  }

  .card-body {
    padding: 1rem;
  }

  .form-control {
    padding: 0.65rem 0.75rem;
  }

  .modal-content {
    width: 95%;
  }
}

/* ========================================
   🌙 DARK MODE UTILITIES
   ======================================== */

body.dark-mode .card {
  background: var(--dark-gray);
  border-color: rgba(255, 255, 255, 0.1);
}

body.dark-mode .form-control,
body.dark-mode .form-select {
  background-color: var(--dark-gray);
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--white);
}

body.dark-mode .form-control:focus,
body.dark-mode .form-select:focus {
  background-color: rgba(255, 255, 255, 0.05);
}

body.dark-mode .modal-content {
  background-color: var(--dark-gray);
  border-color: rgba(255, 255, 255, 0.1);
}

body.dark-mode .btn-secondary {
  background: var(--dark-gray);
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.2);
}