/* static/style.css */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Noto+Sans+TC:wght@300;400;500;700&display=swap');

:root {
    --bg-dark: #090d16;
    --bg-card: rgba(16, 24, 40, 0.75);
    --bg-card-hover: rgba(23, 34, 56, 0.85);
    --border-glow: rgba(0, 242, 254, 0.25);
    --primary-cyan: #00f2fe;
    --primary-blue: #4facfe;
    --accent-purple: #7f00ff;
    --accent-gold: #ffb703;
    --text-bright: #ffffff;
    --text-muted: #94a3b8;
    --text-dim: #64748b;
    --danger-red: #ff4d4d;
    --success-green: #00e676;
    --radius-lg: 20px;
    --radius-md: 12px;
    --radius-sm: 8px;
    --transition-fast: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', 'Noto Sans TC', sans-serif;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-bright);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    background-image: 
        radial-gradient(circle at 15% 15%, rgba(0, 242, 254, 0.12) 0%, transparent 40%),
        radial-gradient(circle at 85% 85%, rgba(127, 0, 255, 0.12) 0%, transparent 40%),
        radial-gradient(circle at 50% 50%, rgba(255, 183, 3, 0.05) 0%, transparent 60%);
    background-attachment: fixed;
}

/* 網頁導覽標頭 */
.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.2rem 2.5rem;
    background: rgba(9, 13, 22, 0.85);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-glow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.brand-icon {
    font-size: 1.8rem;
    background: linear-gradient(135deg, var(--primary-cyan), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 0 10px rgba(0, 242, 254, 0.5));
}

.brand-title {
    font-size: 1.4rem;
    font-weight: 700;
    background: linear-gradient(90deg, #ffffff, var(--primary-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: 0.5px;
}

.brand-tag {
    font-size: 0.75rem;
    padding: 3px 8px;
    border-radius: 20px;
    background: rgba(0, 242, 254, 0.15);
    color: var(--primary-cyan);
    border: 1px solid rgba(0, 242, 254, 0.3);
    font-weight: 600;
}

.tribe-selector-container {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--bg-card);
    padding: 6px 16px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-glow);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.tribe-selector-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
}

.tribe-select {
    background: transparent;
    color: var(--primary-cyan);
    border: none;
    font-size: 1rem;
    font-weight: 700;
    outline: none;
    cursor: pointer;
    padding-right: 5px;
}

.tribe-select option {
    background: #0d1527;
    color: #ffffff;
}

/* 主容器 */
.app-container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1.5rem;
    width: 100%;
    flex: 1;
}

/* Tab 導覽按鈕列 */
.tabs-header {
    display: flex;
    gap: 10px;
    margin-bottom: 1.5rem;
    background: rgba(16, 24, 40, 0.6);
    padding: 8px;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.08);
    overflow-x: auto;
}

.tab-btn {
    flex: 1;
    min-width: 130px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 18px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-fast);
    white-space: nowrap;
}

.tab-btn:hover {
    color: var(--text-bright);
    background: rgba(255, 255, 255, 0.05);
}

.tab-btn.active {
    color: #ffffff;
    background: linear-gradient(135deg, rgba(0, 242, 254, 0.2), rgba(127, 0, 255, 0.25));
    border: 1px solid var(--primary-cyan);
    box-shadow: 0 0 15px rgba(0, 242, 254, 0.3);
}

/* 卡片與分頁面板 */
.tab-content {
    display: none;
    animation: fadeIn 0.35s ease-out forwards;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-glow);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    margin-bottom: 1.5rem;
}

/* 翻譯方向模式列 */
.direction-selector-bar {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    flex-wrap: wrap;
}

.direction-label {
    font-size: 0.92rem;
    color: var(--primary-cyan);
    font-weight: 600;
}

.direction-options {
    display: flex;
    gap: 8px;
    background: rgba(10, 15, 26, 0.8);
    padding: 4px;
    border-radius: var(--radius-md);
    border: 1px solid rgba(0, 242, 254, 0.15);
}

.dir-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
}

.dir-btn:hover {
    color: var(--text-bright);
}

.dir-btn.active {
    background: var(--gradient-cyber);
    color: #040914;
    font-weight: 700;
    box-shadow: var(--shadow-cyan);
}


/* 文字翻譯區域 */
.translation-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

@media (max-width: 768px) {
    .translation-grid {
        grid-template-columns: 1fr;
    }
}

.input-box-wrapper, .output-box-wrapper {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.box-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 600;
}

.text-area-styled {
    width: 100%;
    height: 180px;
    background: rgba(9, 13, 22, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    padding: 1.2rem;
    color: var(--text-bright);
    font-size: 1.05rem;
    resize: none;
    outline: none;
    transition: var(--transition-fast);
}

.text-area-styled:focus {
    border-color: var(--primary-cyan);
    box-shadow: 0 0 15px rgba(0, 242, 254, 0.2);
}

.output-styled {
    width: 100%;
    height: 180px;
    background: rgba(9, 13, 22, 0.85);
    border: 1px solid var(--border-glow);
    border-radius: var(--radius-md);
    padding: 1.2rem;
    color: var(--primary-cyan);
    font-size: 1.2rem;
    font-weight: 600;
    overflow-y: auto;
    line-height: 1.6;
    position: relative;
}

.output-styled.empty {
    color: var(--text-dim);
    font-size: 1rem;
    font-weight: 400;
}

.btn-group {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.btn {
    padding: 12px 24px;
    border-radius: var(--radius-md);
    border: none;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: var(--transition-fast);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-cyan), var(--primary-blue));
    color: #000;
    font-weight: 700;
    box-shadow: 0 4px 15px rgba(0, 242, 254, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 242, 254, 0.6);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-bright);
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.btn-accent {
    background: linear-gradient(135deg, var(--accent-purple), #b5179e);
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(127, 0, 255, 0.4);
}

.btn-accent:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(127, 0, 255, 0.6);
}

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

/* 信心值標籤與速度控制 */
.meta-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    flex-wrap: wrap;
    gap: 10px;
}

.badge-confidence {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    background: rgba(0, 230, 118, 0.15);
    color: var(--success-green);
    border: 1px solid rgba(0, 230, 118, 0.3);
}

.badge-confidence.medium {
    background: rgba(255, 183, 3, 0.15);
    color: var(--accent-gold);
    border-color: rgba(255, 183, 3, 0.3);
}

.badge-confidence.low {
    background: rgba(255, 77, 77, 0.15);
    color: var(--danger-red);
    border-color: rgba(255, 77, 77, 0.3);
}

/* 語法分析卡片展示 */
.analysis-result-container {
    margin-top: 1.5rem;
    display: none;
}

.glossing-card-preview {
    max-width: 100%;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-glow);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5);
}

/* 常用單字速查快卡 */
.phrasebook-section {
    margin-top: 2rem;
}

.section-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-bright);
    display: flex;
    align-items: center;
    gap: 8px;
}

.phrases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 12px;
}

.phrase-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 12px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-fast);
    text-align: center;
}

.phrase-card:hover {
    background: rgba(0, 242, 254, 0.1);
    border-color: var(--primary-cyan);
    transform: translateY(-3px);
}

.phrase-zh {
    font-weight: 600;
    color: var(--text-bright);
    font-size: 0.95rem;
}

.phrase-desc {
    font-size: 0.75rem;
    color: var(--text-dim);
    margin-top: 4px;
}

/* 歷史紀錄列表 */
.history-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-height: 250px;
    overflow-y: auto;
}

.history-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 14px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--primary-cyan);
    font-size: 0.9rem;
}

/* 上傳區塊樣式 (語音, 圖片, 影片) */
.dropzone {
    border: 2px dashed rgba(0, 242, 254, 0.4);
    border-radius: var(--radius-lg);
    padding: 3rem 2rem;
    text-align: center;
    background: rgba(9, 13, 22, 0.5);
    cursor: pointer;
    transition: var(--transition-fast);
}

.dropzone:hover, .dropzone.dragover {
    border-color: var(--primary-cyan);
    background: rgba(0, 242, 254, 0.08);
}

.dropzone-icon {
    font-size: 3rem;
    color: var(--primary-cyan);
    margin-bottom: 1rem;
}

/* 載入中 Loading 遮罩與動畫 */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #ffffff;
    animation: spin 0.8s linear infinite;
}

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

/* Footer */
.footer {
    text-align: center;
    padding: 1.5rem;
    color: var(--text-dim);
    font-size: 0.85rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    background: rgba(9, 13, 22, 0.9);
}


/* Modal 樣式 */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}
.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border-glow);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 800px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.8);
    display: flex;
    flex-direction: column;
}
.modal-header {
    padding: 15px 20px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.modal-header h3 {
    margin: 0;
    color: var(--primary-cyan);
}
.close-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
}
.close-btn:hover {
    color: var(--danger-red);
}