/* ================================
   個性測試 - 主樣式表
   融合東方美學與現代設計
   ================================ */

/* === 全局變量 === */
:root {
    /* 色彩系統 - 基於五行配色 */
    --primary-color: #d4af37;        /* 金色 - 主色調 */
    --secondary-color: #8b4513;      /* 木色 - 輔助色 */
    --accent-color: #c41e3a;         /* 火色 - 強調色 */
    --water-color: #1e3a8a;          /* 水色 - 深藍 */
    --earth-color: #d2691e;          /* 土色 - 棕色 */
    
    /* 中性色 */
    --dark-bg: #1a1a2e;
    --darker-bg: #0f0f1e;
    --light-text: #ffffff;
    --gray-text: #b0b0b0;
    --card-bg: rgba(255, 255, 255, 0.05);
    --card-border: rgba(212, 175, 55, 0.3);
    
    /* 漸變色 */
    --gradient-gold: linear-gradient(135deg, #d4af37 0%, #f4d03f 100%);
    --gradient-dark: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    --gradient-overlay: linear-gradient(180deg, rgba(26, 26, 46, 0) 0%, rgba(26, 26, 46, 0.8) 100%);
    
    /* 陰影 */
    --shadow-small: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-medium: 0 4px 16px rgba(0, 0, 0, 0.3);
    --shadow-large: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 20px rgba(212, 175, 55, 0.3);
    
    /* 間距 */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* 字體 */
    --font-main: 'Noto Sans TC', sans-serif;
    --font-title: 'Noto Serif TC', serif;
    
    /* 動畫時間 */
    --transition-fast: 0.2s;
    --transition-normal: 0.3s;
    --transition-slow: 0.5s;
}

/* === 全局重置 === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-main);
    background: var(--dark-bg);
    color: var(--light-text);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

/* === 粒子背景 === */
#particles-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 50%, rgba(212, 175, 55, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 50%, rgba(139, 69, 19, 0.1) 0%, transparent 50%),
                var(--darker-bg);
    z-index: -1;
    animation: backgroundPulse 20s ease-in-out infinite;
}

@keyframes backgroundPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

/* === 主容器 === */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    position: relative;
    z-index: 1;
}

/* === 屏幕管理 === */
.screen {
    display: none;
    animation: fadeIn 0.5s ease-in-out;
    min-height: 100vh;
    padding: var(--spacing-lg) 0;
}

.screen.active {
    display: block;
}

/* === 歡迎屏幕 === */
#welcome-screen {
    display: flex;
    align-items: center;
    justify-content: center;
}

.welcome-content {
    text-align: center;
    max-width: 800px;
    padding: var(--spacing-xl);
}

.bagua-symbol {
    width: 120px;
    height: 120px;
    margin: 0 auto var(--spacing-lg);
    filter: drop-shadow(var(--shadow-glow));
}

.symbol-icon {
    width: 100%;
    height: 100%;
    filter: invert(1) sepia(1) saturate(5) hue-rotate(10deg);
}

.rotating-slow {
    animation: rotate 20s linear infinite;
}

.title-main {
    font-family: var(--font-title);
    font-size: 4rem;
    font-weight: 700;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
    text-shadow: 0 0 30px rgba(212, 175, 55, 0.5);
}

.subtitle {
    font-size: 1.5rem;
    color: var(--gray-text);
    margin-bottom: var(--spacing-lg);
}

.description {
    font-size: 1.1rem;
    color: var(--gray-text);
    line-height: 1.8;
    margin-bottom: var(--spacing-xl);
}

/* === 模式選擇卡片 === */
.mode-selection {
    margin: var(--spacing-xl) 0;
}

.mode-selection h3 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-lg);
    color: var(--primary-color);
}

.mode-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.mode-card {
    background: var(--card-bg);
    border: 2px solid var(--card-border);
    border-radius: 16px;
    padding: var(--spacing-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.mode-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(212, 175, 55, 0.2), transparent);
    transition: left var(--transition-slow);
}

.mode-card:hover::before {
    left: 100%;
}

.mode-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-glow);
}

.mode-card.selected {
    background: rgba(212, 175, 55, 0.15);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-glow);
}

.mode-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.mode-card h4 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-xs);
}

.mode-card p {
    color: var(--gray-text);
    font-size: 0.95rem;
}

.badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--accent-color);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* === 按鈕樣式 === */
.btn-primary, .btn-secondary {
    font-family: var(--font-main);
    font-size: 1.1rem;
    padding: var(--spacing-md) var(--spacing-xl);
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: all var(--transition-normal);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-primary {
    background: var(--gradient-gold);
    color: var(--darker-bg);
    box-shadow: var(--shadow-medium);
}

.btn-primary:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: var(--shadow-glow), var(--shadow-large);
}

.btn-primary:active {
    transform: translateY(0) scale(1);
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.btn-secondary {
    background: var(--card-bg);
    color: var(--light-text);
    border: 2px solid var(--card-border);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

/* === 問題屏幕 === */
.question-container {
    max-width: 900px;
    margin: 0 auto;
}

/* 進度條 */
.progress-bar-container {
    margin-bottom: var(--spacing-xl);
}

.progress-info {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.progress-bar {
    width: 100%;
    height: 12px;
    background: var(--card-bg);
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid var(--card-border);
}

.progress-fill {
    height: 100%;
    background: var(--gradient-gold);
    border-radius: 10px;
    transition: width var(--transition-slow);
    box-shadow: 0 0 10px rgba(212, 175, 55, 0.5);
}

/* 問題卡片 */
.question-card {
    background: var(--card-bg);
    border: 2px solid var(--card-border);
    border-radius: 24px;
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-large);
    animation: slideIn 0.5s ease-out;
}

.question-icon {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.question-icon i {
    font-size: 3rem;
    color: var(--primary-color);
    animation: pulse 2s ease-in-out infinite;
}

.question-text {
    font-size: 1.8rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: var(--spacing-xl);
    line-height: 1.5;
    color: var(--light-text);
}

/* 答案選項 */
.answer-options {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.answer-option {
    background: var(--card-bg);
    border: 2px solid var(--card-border);
    border-radius: 16px;
    padding: var(--spacing-md) var(--spacing-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    position: relative;
    overflow: hidden;
}

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

.answer-option:hover::before {
    transform: scaleY(1);
}

.answer-option:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--primary-color);
    transform: translateX(8px);
}

.answer-option.selected {
    background: rgba(212, 175, 55, 0.15);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-glow);
}

.answer-option.selected::before {
    transform: scaleY(1);
}

.option-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--card-bg);
    border: 2px solid var(--card-border);
    border-radius: 50%;
    font-weight: 700;
    font-size: 1.1rem;
    flex-shrink: 0;
    transition: all var(--transition-normal);
}

.answer-option.selected .option-number {
    background: var(--gradient-gold);
    color: var(--darker-bg);
    border-color: var(--primary-color);
}

.option-text {
    flex: 1;
    font-size: 1.1rem;
    line-height: 1.5;
}

/* 導航按鈕 */
.navigation-buttons {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.navigation-buttons button {
    flex: 1;
}

/* === 計算屏幕 === */
#calculation-screen {
    display: flex;
    align-items: center;
    justify-content: center;
}

.calculation-content {
    text-align: center;
    max-width: 600px;
}

.bagua-spinner {
    width: 150px;
    height: 150px;
    margin: 0 auto var(--spacing-xl);
}

.bagua-spinner img {
    width: 100%;
    height: 100%;
    filter: invert(1) sepia(1) saturate(5) hue-rotate(10deg) drop-shadow(var(--shadow-glow));
}

.spinning {
    animation: spin 2s linear infinite;
}

.calculation-content h2 {
    font-size: 2rem;
    margin-bottom: var(--spacing-xl);
    color: var(--primary-color);
}

.calculation-steps {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.step {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--card-bg);
    border: 2px solid var(--card-border);
    border-radius: 12px;
    font-size: 1.1rem;
    transition: all var(--transition-normal);
}

.step i {
    font-size: 1.5rem;
    color: var(--gray-text);
}

.step.active {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-glow);
}

.step.active i {
    color: var(--primary-color);
    animation: pulse 1s ease-in-out infinite;
}

.step.completed i {
    color: #4caf50;
}

/* === 結果屏幕 === */
.result-content {
    max-width: 1000px;
    margin: 0 auto;
}

.result-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-xl);
    background: var(--card-bg);
    border: 2px solid var(--card-border);
    border-radius: 24px;
    box-shadow: var(--shadow-large);
}

.bagua-result {
    margin-bottom: var(--spacing-lg);
}

.hexagram {
    font-size: 6rem;
    line-height: 1;
    animation: scaleIn 0.8s ease-out;
    filter: drop-shadow(var(--shadow-glow));
}

.personality-type {
    font-family: var(--font-title);
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
}

.personality-subtitle {
    font-size: 1.2rem;
    color: var(--gray-text);
    font-style: italic;
}

/* 雷達圖 */
.chart-section {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-xl);
    background: var(--card-bg);
    border: 2px solid var(--card-border);
    border-radius: 24px;
    box-shadow: var(--shadow-large);
}

.chart-section h3 {
    text-align: center;
    font-size: 1.8rem;
    margin-bottom: var(--spacing-lg);
    color: var(--primary-color);
}

.chart-container {
    position: relative;
    height: 400px;
    max-width: 600px;
    margin: 0 auto;
}

/* 性格詳情卡片 */
.personality-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.detail-card {
    background: var(--card-bg);
    border: 2px solid var(--card-border);
    border-radius: 20px;
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-medium);
    transition: all var(--transition-normal);
    animation: fadeInUp 0.6s ease-out backwards;
}

.detail-card:nth-child(1) { animation-delay: 0.1s; }
.detail-card:nth-child(2) { animation-delay: 0.2s; }
.detail-card:nth-child(3) { animation-delay: 0.3s; }
.detail-card:nth-child(4) { animation-delay: 0.4s; }

.detail-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-glow);
}

.detail-card h3 {
    font-size: 1.4rem;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.detail-card ul {
    list-style: none;
    padding: 0;
}

.detail-card li {
    padding: var(--spacing-sm) 0;
    padding-left: var(--spacing-lg);
    position: relative;
    line-height: 1.6;
}

.detail-card li::before {
    content: '◆';
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

/* 結果操作按鈕 */
.result-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

/* === Toast 通知 === */
.toast {
    position: fixed;
    bottom: -100px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--darker-bg);
    color: var(--light-text);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: 50px;
    border: 2px solid var(--primary-color);
    box-shadow: var(--shadow-large), var(--shadow-glow);
    z-index: 1000;
    transition: bottom var(--transition-normal);
    font-weight: 600;
}

.toast.show {
    bottom: 30px;
}

/* === 分享模態框 === */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease-out;
}

.modal-content {
    background: var(--dark-bg);
    border: 2px solid var(--primary-color);
    border-radius: 24px;
    padding: var(--spacing-xl);
    max-width: 500px;
    width: 90%;
    position: relative;
    box-shadow: var(--shadow-large), var(--shadow-glow);
    animation: scaleIn 0.3s ease-out;
}

.close {
    position: absolute;
    right: 20px;
    top: 20px;
    font-size: 2rem;
    cursor: pointer;
    color: var(--gray-text);
    transition: color var(--transition-fast);
}

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

.modal-content h2 {
    margin-bottom: var(--spacing-lg);
    color: var(--primary-color);
}

.share-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.share-btn {
    padding: var(--spacing-md);
    border: 2px solid var(--card-border);
    background: var(--card-bg);
    border-radius: 12px;
    cursor: pointer;
    transition: all var(--transition-normal);
    font-size: 1.1rem;
    color: var(--light-text);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.share-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--primary-color);
    transform: scale(1.05);
}

/* === 動畫定義 === */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.5);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

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

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

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(1.1); }
}

/* 淡入動畫延遲 */
.fade-in { animation: fadeIn 1s ease-out; }
.fade-in-delay { animation: fadeIn 1s ease-out 0.3s backwards; }
.fade-in-delay-2 { animation: fadeIn 1s ease-out 0.6s backwards; }
.fade-in-delay-3 { animation: fadeIn 1s ease-out 0.9s backwards; }

/* === 響應式設計 === */
@media (max-width: 768px) {
    .title-main {
        font-size: 2.5rem;
    }
    
    .subtitle {
        font-size: 1.2rem;
    }
    
    .mode-cards {
        grid-template-columns: 1fr;
    }
    
    .question-text {
        font-size: 1.4rem;
    }
    
    .navigation-buttons {
        flex-direction: column;
    }
    
    .personality-details {
        grid-template-columns: 1fr;
    }
    
    .result-actions {
        flex-direction: column;
    }
    
    .result-actions button {
        width: 100%;
    }
    
    .share-options {
        grid-template-columns: 1fr;
    }
    
    .chart-container {
        height: 300px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: var(--spacing-sm);
    }
    
    .title-main {
        font-size: 2rem;
    }
    
    .question-card {
        padding: var(--spacing-lg);
    }
    
    .hexagram {
        font-size: 4rem;
    }
    
    .personality-type {
        font-size: 1.8rem;
    }
}

/* === 可訪問性 === */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* === 打印樣式 === */
@media print {
    body {
        background: white;
        color: black;
    }
    
    .btn-primary,
    .btn-secondary,
    .navigation-buttons,
    .result-actions {
        display: none;
    }
    
    .screen {
        page-break-after: always;
    }
}