/**
 * Kochim 통일 테마 시스템
 * 모든 페이지에서 일관된 다크모드/라이트모드 지원
 */

/* CSS 사용자 정의 속성 (CSS Variables) */
:root {
  /* Primary Colors */
  --primary-blue: #3b82f6;
  --primary-blue-dark: #60a5fa;
  --primary-blue-light: #1d4ed8;
  
  /* Background Colors */
  --bg-primary: #ffffff;
  --bg-secondary: #f9fafb;
  --bg-tertiary: #f3f4f6;
  
  /* Text Colors */
  --text-primary: #111827;
  --text-secondary: #6b7280;
  --text-tertiary: #9ca3af;
  
  /* Border Colors */
  --border-primary: #e5e7eb;
  --border-secondary: #d1d5db;
  
  /* Shadow Colors */
  --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);
}

/* Dark Mode Variables */
.dark {
  --primary-blue: #60a5fa;
  --primary-blue-dark: #93c5fd;
  --primary-blue-light: #3b82f6;
  
  --bg-primary: #1f2937;
  --bg-secondary: #111827;
  --bg-tertiary: #374151;
  
  --text-primary: #f9fafb;
  --text-secondary: #d1d5db;
  --text-tertiary: #9ca3af;
  
  --border-primary: #374151;
  --border-secondary: #4b5563;
  
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.3), 0 2px 4px -2px rgb(0 0 0 / 0.3);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.3), 0 4px 6px -4px rgb(0 0 0 / 0.3);
}

/* Base Styles */
* {
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
}

/* Utility Classes */
.bg-primary {
  background-color: var(--bg-primary);
}

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

.bg-tertiary {
  background-color: var(--bg-tertiary);
}

.text-primary {
  color: var(--text-primary);
}

.text-secondary {
  color: var(--text-secondary);
}

.text-tertiary {
  color: var(--text-tertiary);
}

.border-primary {
  border-color: var(--border-primary);
}

.border-secondary {
  border-color: var(--border-secondary);
}

.text-primary-blue {
  color: var(--primary-blue);
}

.bg-primary-blue {
  background-color: var(--primary-blue);
}

.hover\:text-primary-blue:hover {
  color: var(--primary-blue);
}

.hover\:bg-primary-blue:hover {
  background-color: var(--primary-blue);
}

/* Shadow Utilities */
.shadow-sm {
  box-shadow: var(--shadow-sm);
}

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

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

/* Theme-specific Tailwind overrides */
.dark .bg-white {
  background-color: var(--bg-primary);
}

.dark .bg-gray-50 {
  background-color: var(--bg-secondary);
}

.dark .bg-gray-100 {
  background-color: var(--bg-tertiary);
}

.dark .text-gray-900 {
  color: var(--text-primary);
}

.dark .text-gray-700 {
  color: var(--text-secondary);
}

.dark .text-gray-500 {
  color: var(--text-tertiary);
}

.dark .border-gray-200 {
  border-color: var(--border-primary);
}

.dark .border-gray-300 {
  border-color: var(--border-secondary);
}

/* Specific LoveTune Dark Theme Support */
.dark .dark\:bg-lovetune-dark-bg {
  background-color: #0f172a !important;
}

.dark .dark\:bg-lovetune-dark-paper {
  background-color: #1e293b !important;
}

.dark .dark\:text-gray-300 {
  color: #d1d5db !important;
}

/* Gradient Backgrounds */
.gradient-bg {
  background: linear-gradient(135deg, var(--primary-blue) 0%, #8b5cf6 100%);
}

.gradient-bg-dark {
  background: linear-gradient(135deg, #1e40af 0%, #7c3aed 100%);
}

.dark .gradient-bg {
  background: linear-gradient(135deg, #1e40af 0%, #7c3aed 100%);
}

/* Animation Classes */
.animate-fade-in {
  animation: fadeIn 0.6s ease-out;
}

.animate-slide-up {
  animation: slideUp 0.6s ease-out;
}

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

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

/* Button Styles */
.btn-primary {
  background-color: var(--primary-blue);
  color: white;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 500;
  transition: all 0.3s ease;
}

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

.btn-secondary {
  background-color: transparent;
  color: var(--primary-blue);
  border: 2px solid var(--primary-blue);
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 500;
  transition: all 0.3s ease;
}

.btn-secondary:hover {
  background-color: var(--primary-blue);
  color: white;
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

/* Card Styles */
.card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-primary);
  border-radius: 0.75rem;
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

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

/* Form Styles */
.form-input {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-primary);
  color: var(--text-primary);
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  transition: all 0.3s ease;
}

.form-input:focus {
  outline: none;
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 3px rgb(59 130 246 / 0.1);
}

.dark .form-input:focus {
  box-shadow: 0 0 0 3px rgb(96 165 250 / 0.2);
}

/* Responsive Design */
@media (max-width: 768px) {
  .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }
  
  .btn-primary,
  .btn-secondary {
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
  }
  
  .card {
    padding: 1rem;
  }
}

/* Print Styles */
@media print {
  .dark {
    --bg-primary: #ffffff;
    --bg-secondary: #ffffff;
    --text-primary: #000000;
    --text-secondary: #666666;
  }
  
  .gradient-bg {
    background: #3b82f6 !important;
    color: white !important;
  }
}