/**
 * UI/UX 디자인 시스템 (Section 5: 항목 77-109)
 */

/* ===================================
   항목 77: 황금 테마 색상 팔레트
   =================================== */
:root {
    /* Gold Theme Colors */
    --gold-50: #fffbeb;
    --gold-100: #fef3c7;
    --gold-200: #fde68a;
    --gold-300: #fcd34d;
    --gold-400: #fbbf24;
    --gold-500: #f59e0b;
    --gold-600: #d97706;
    --gold-700: #b45309;
    --gold-800: #92400e;
    --gold-900: #78350f;
    
    /* 항목 78: Semantic Colors */
    --color-success: #10b981;
    --color-success-light: #d1fae5;
    --color-success-dark: #065f46;
    
    --color-warning: #f59e0b;
    --color-warning-light: #fef3c7;
    --color-warning-dark: #92400e;
    
    --color-error: #ef4444;
    --color-error-light: #fee2e2;
    --color-error-dark: #991b1b;
    
    --color-info: #3b82f6;
    --color-info-light: #dbeafe;
    --color-info-dark: #1e3a8a;
    
    /* 항목 79: Neutral Colors */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Text Colors */
    --text-primary: var(--gray-900);
    --text-secondary: var(--gray-600);
    --text-tertiary: var(--gray-500);
    
    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: var(--gray-50);
    --bg-tertiary: var(--gray-100);
    
    /* Border Colors */
    --border-light: var(--gray-200);
    --border-medium: var(--gray-300);
    --border-dark: var(--gray-400);
    
    /* Shadow */
    --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);
    
    /* 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: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
}

/* ===================================
   항목 80-83: 다크 모드
   =================================== */
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        /* Gold Theme (다크 모드에서도 유지) */
        --gold-50: #78350f;
        --gold-100: #92400e;
        --gold-200: #b45309;
        --gold-300: #d97706;
        --gold-400: #f59e0b;
        --gold-500: #fbbf24;
        --gold-600: #fcd34d;
        --gold-700: #fde68a;
        --gold-800: #fef3c7;
        --gold-900: #fffbeb;
        
        /* Semantic Colors (다크 모드) */
        --color-success: #34d399;
        --color-success-light: #065f46;
        --color-success-dark: #d1fae5;
        
        --color-warning: #fbbf24;
        --color-warning-light: #92400e;
        --color-warning-dark: #fef3c7;
        
        --color-error: #f87171;
        --color-error-light: #991b1b;
        --color-error-dark: #fee2e2;
        
        --color-info: #60a5fa;
        --color-info-light: #1e3a8a;
        --color-info-dark: #dbeafe;
        
        /* Neutral Colors (다크 모드) */
        --gray-50: #111827;
        --gray-100: #1f2937;
        --gray-200: #374151;
        --gray-300: #4b5563;
        --gray-400: #6b7280;
        --gray-500: #9ca3af;
        --gray-600: #d1d5db;
        --gray-700: #e5e7eb;
        --gray-800: #f3f4f6;
        --gray-900: #f9fafb;
        
        /* Text Colors */
        --text-primary: var(--gray-900);
        --text-secondary: var(--gray-600);
        --text-tertiary: var(--gray-500);
        
        /* Background Colors */
        --bg-primary: #0f172a;
        --bg-secondary: #1e293b;
        --bg-tertiary: #334155;
        
        /* Border Colors */
        --border-light: var(--gray-700);
        --border-medium: var(--gray-600);
        --border-dark: var(--gray-500);
    }
}

/* 다크 모드 강제 적용 (data-theme="dark") */
[data-theme="dark"] {
    --gold-50: #78350f;
    --gold-100: #92400e;
    --gold-200: #b45309;
    --gold-300: #d97706;
    --gold-400: #f59e0b;
    --gold-500: #fbbf24;
    --gold-600: #fcd34d;
    --gold-700: #fde68a;
    --gold-800: #fef3c7;
    --gold-900: #fffbeb;
    
    --text-primary: #f9fafb;
    --text-secondary: #d1d5db;
    --text-tertiary: #9ca3af;
    
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
}

/* ===================================
   항목 84-87: 카드 컴포넌트
   =================================== */

/* 황금 키워드 카드 */
.golden-keyword-card {
    position: relative;
    background: linear-gradient(135deg, var(--gold-50) 0%, var(--gold-100) 100%);
    border: 2px solid var(--gold-400);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    overflow: hidden;
    transition: all var(--transition-base);
    cursor: pointer;
}

/* 항목 85: 호버 효과 */
.golden-keyword-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(251, 191, 36, 0.3);
}

/* 항목 86: 그라데이션 배경 애니메이션 */
.golden-keyword-card::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        45deg,
        transparent 30%,
        rgba(255, 255, 255, 0.3) 50%,
        transparent 70%
    );
    transform: rotate(45deg);
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

/* 항목 87: ::before 글로우 효과 */
.golden-keyword-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: var(--radius-xl);
    padding: 2px;
    background: linear-gradient(135deg, var(--gold-400), var(--gold-600));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.golden-keyword-card:hover::before {
    opacity: 1;
}

/* ===================================
   항목 88-91: 차트 컨테이너
   =================================== */

.chart-container {
    background: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
}

/* 항목 89: 차트 헤더 */
.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-light);
}

.chart-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.chart-subtitle {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

/* 항목 90: 차트 범례 */
.chart-legend {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.chart-legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
}

.chart-legend-color {
    width: 16px;
    height: 16px;
    border-radius: var(--radius-sm);
}

/* 항목 91: 반응형 차트 */
.chart-wrapper {
    position: relative;
    height: 300px;
}

@media (max-width: 768px) {
    .chart-wrapper {
        height: 250px;
    }
    
    .chart-container {
        padding: var(--spacing-md);
    }
}

/* ===================================
   항목 92-95: 메트릭 카드
   =================================== */

/* 항목 92: 메트릭 그리드 */
.metric-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

/* 항목 93: 메트릭 카드 */
.metric-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all var(--transition-base);
}

.metric-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--gold-400);
}

/* 항목 94: 메트릭 값 표시 */
.metric-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
    margin: var(--spacing-sm) 0;
}

.metric-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* 항목 95: 변화율 표시 */
.metric-change {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.875rem;
    font-weight: 600;
    margin-top: var(--spacing-sm);
}

.metric-change.positive {
    color: var(--color-success);
}

.metric-change.negative {
    color: var(--color-error);
}

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

/* ===================================
   항목 96-100: 반응형 레이아웃
   =================================== */

/* 항목 96: 그리드 시스템 (이미 layout-system.css에 있지만 추가 스타일) */
.grid-responsive {
    display: grid;
    gap: var(--spacing-lg);
}

/* 항목 97: 모바일 브레이크포인트 */
@media (max-width: 768px) {
    .metric-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }
    
    .metric-value {
        font-size: 2rem;
    }
    
    /* 항목 100: 모바일 차트 스크롤 */
    .chart-container {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
}

/* 항목 98: 터치 친화적 버튼 */
@media (hover: none) and (pointer: coarse) {
    .btn,
    button,
    .metric-card {
        min-height: 44px;
        min-width: 44px;
    }
}

/* 항목 99: iOS 줌 방지 */
@media (max-width: 768px) {
    input,
    select,
    textarea {
        font-size: 16px !important;
    }
}

/* ===================================
   항목 107-109: 애니메이션
   =================================== */

/* 항목 107: slideInUp */
@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 항목 108: goldGlow */
@keyframes goldGlow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(251, 191, 36, 0.3);
    }
    50% {
        box-shadow: 0 0 40px rgba(251, 191, 36, 0.6);
    }
}

/* 항목 109: 지연 애니메이션 */
.animate-slide-in {
    animation: slideInUp 0.6s ease-out forwards;
    opacity: 0;
}

.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }
.stagger-4 { animation-delay: 0.4s; }
.stagger-5 { animation-delay: 0.5s; }

.animate-gold-glow {
    animation: goldGlow 2s ease-in-out infinite;
}

/* 페이드 인 */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.animate-fade-in {
    animation: fadeIn 0.5s ease-in;
}

/* 스케일 업 */
@keyframes scaleUp {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.animate-scale-up {
    animation: scaleUp 0.4s ease-out;
}