/* Legal-RAG 台灣法律專家知識系統樣式 */

:root {
    --primary: #1a365d;
    --secondary: #2c5282;
    --accent: #c9a227;
    --bg-dark: #0a1628;
    --bg-card: rgba(255, 255, 255, 0.05);
    --text-light: #e2e8f0;
    --text-muted: #a0aec0;
    --border: rgba(255, 255, 255, 0.1);
    --gold: #d4a574;
    --success: #48bb78;
    --danger: #fc8181;
}

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

body {
    font-family: 'Noto Sans TC', 'Microsoft JhengHei', 'Segoe UI', sans-serif;
    background: linear-gradient(180deg, #0d1b2a 0%, #1b263b 50%, #0a1628 100%);
    min-height: 100vh;
    color: var(--text-light);
    line-height: 1.6;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
}

/* 頂部標題 */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 30px;
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    border-radius: 15px;
    margin-bottom: 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo-icon {
    font-size: 2.5rem;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 600;
    background: linear-gradient(90deg, var(--gold), #fff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.tag {
    padding: 5px 15px;
    background: linear-gradient(135deg, var(--secondary), var(--primary));
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: bold;
    letter-spacing: 2px;
}

/* 搜尋區域 */
.search-section {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    border-radius: 15px;
    padding: 25px;
    margin-bottom: 20px;
}

.search-box {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

.search-box input {
    flex: 1;
    padding: 15px 20px;
    border: 2px solid var(--border);
    border-radius: 10px;
    background: rgba(0, 0, 0, 0.3);
    color: #fff;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s;
}

.search-box input:focus {
    border-color: var(--gold);
}

.search-box input::placeholder {
    color: var(--text-muted);
}

.search-btn {
    padding: 15px 30px;
    border: none;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--gold), #b8952f);
    color: #000;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    transition: transform 0.2s;
}

.search-btn:hover {
    transform: translateY(-2px);
}

.search-tips {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.tag-btn {
    display: inline-block;
    padding: 5px 15px;
    margin: 5px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.2s;
}

.tag-btn:hover {
    background: var(--gold);
    color: #000;
}

/* 熱門問題 */
.hot-topics {
    margin-bottom: 20px;
}

.hot-topics h2 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--gold);
}

.topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.topic-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    cursor: pointer;
    transition: all 0.3s;
}

.topic-card:hover {
    transform: translateY(-5px);
    border-color: var(--gold);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.topic-icon {
    font-size: 2rem;
    margin-bottom: 10px;
}

.topic-title {
    font-weight: 600;
    margin-bottom: 5px;
}

.topic-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* 問答區域 */
.qa-section {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 15px;
    padding: 25px;
    margin-bottom: 20px;
}

.qa-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.qa-header h2 {
    font-size: 1.2rem;
    color: var(--gold);
}

.clear-btn {
    padding: 5px 15px;
    border: none;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.85rem;
}

.clear-btn:hover {
    background: var(--danger);
    color: #fff;
}

.qa-history {
    max-height: 400px;
    overflow-y: auto;
    margin-bottom: 15px;
    padding: 15px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 10px;
}

.welcome-message {
    text-align: center;
    color: var(--text-muted);
    padding: 30px;
}

.welcome-message .disclaimer {
    margin-top: 20px;
    padding: 15px;
    background: rgba(252, 129, 129, 0.1);
    border: 1px solid var(--danger);
    border-radius: 8px;
    font-size: 0.9rem;
    color: var(--danger);
}

.qa-item {
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border);
}

.qa-item:last-child {
    border-bottom: none;
}

.question {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 15px;
}

.question-label {
    padding: 3px 10px;
    background: var(--secondary);
    border-radius: 5px;
    font-size: 0.8rem;
    white-space: nowrap;
}

.answer {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.answer-label {
    padding: 3px 10px;
    background: var(--gold);
    color: #000;
    border-radius: 5px;
    font-size: 0.8rem;
    white-space: nowrap;
}

.answer-content {
    flex: 1;
    line-height: 1.8;
}

.related-cases {
    margin-top: 10px;
    padding: 10px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
}

.related-cases h4 {
    font-size: 0.9rem;
    color: var(--gold);
    margin-bottom: 8px;
}

.related-cases ul {
    list-style: none;
    font-size: 0.85rem;
}

.related-cases li {
    padding: 5px 0;
    color: var(--text-muted);
    cursor: pointer;
}

.related-cases li:hover {
    color: var(--gold);
}

.qa-input-area {
    display: flex;
    gap: 10px;
}

.qa-input-area input {
    flex: 1;
    padding: 12px 15px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.3);
    color: #fff;
    font-size: 0.95rem;
    outline: none;
}

.qa-input-area input:focus {
    border-color: var(--gold);
}

.qa-input-area button {
    padding: 12px 25px;
    border: none;
    border-radius: 8px;
    background: var(--secondary);
    color: #fff;
    cursor: pointer;
    font-weight: 600;
}

.qa-input-area button:hover {
    background: var(--primary);
}

/* 判例資料區 */
.cases-section {
    margin-bottom: 20px;
}

.cases-section h2 {
    font-size: 1.2rem;
    color: var(--gold);
    margin-bottom: 15px;
}

.cases-list {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 15px;
}

.case-empty {
    text-align: center;
    color: var(--text-muted);
    padding: 30px;
}

.case-item {
    padding: 15px;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: background 0.2s;
}

.case-item:last-child {
    border-bottom: none;
}

.case-item:hover {
    background: rgba(255, 255, 255, 0.05);
}

.case-title {
    font-weight: 600;
    color: var(--gold);
    margin-bottom: 5px;
}

.case-meta {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.case-summary {
    font-size: 0.9rem;
    line-height: 1.5;
}

.case-tags {
    display: flex;
    gap: 8px;
    margin-top: 10px;
}

.case-tag {
    padding: 3px 10px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* 法規查詢 */
.laws-section {
    margin-bottom: 20px;
}

.laws-section h2 {
    font-size: 1.2rem;
    color: var(--gold);
    margin-bottom: 15px;
}

.laws-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

.law-tab {
    padding: 10px 20px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.2s;
}

.law-tab:hover,
.law-tab.active {
    background: var(--secondary);
    color: #fff;
    border-color: var(--secondary);
}

.laws-content {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    max-height: 300px;
    overflow-y: auto;
}

.law-item {
    padding: 15px;
    border-bottom: 1px solid var(--border);
}

.law-item:last-child {
    border-bottom: none;
}

.law-name {
    font-weight: 600;
    color: var(--gold);
    margin-bottom: 8px;
}

.law-content {
    font-size: 0.9rem;
    line-height: 1.8;
    color: var(--text-light);
}

.law-meta {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 8px;
}

/* 底部 */
.footer {
    text-align: center;
    padding: 20px;
    color: var(--text-muted);
    font-size: 0.85rem;
    border-top: 1px solid var(--border);
    margin-top: 30px;
}

.footer p {
    margin: 5px 0;
}

.footer strong {
    color: var(--danger);
}

/* 滾動條 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.2);
}

::-webkit-scrollbar-thumb {
    background: var(--secondary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

/* 響應式 */
@media (max-width: 600px) {
    .header {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
    
    .search-box {
        flex-direction: column;
    }
    
    .topics-grid {
        grid-template-columns: 1fr;
    }
    
    .laws-tabs {
        flex-wrap: wrap;
    }
}