/* 專題雷達 - Topic Radar */
/* 設計風格：深度報導戰情室 - 雷達綠方案 */

/* 字體載入 */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

:root {
    /* 戰情室配色 - 雷達方案 */
    --bg-primary: #050810;
    --bg-panel: #0D1117;
    --bg-elevated: #161B22;
    --bg-hover: #1F2937;

    /* 功能色 - 航空雷達磷光綠（深色版）*/
    --color-radar: #00C853;
    --color-radar-bright: #4CAF50;
    --color-radar-dim: #00A040;
    --color-alert: #EF4444;
    --color-warning: #F59E0B;
    --color-info: #3B82F6;

    /* 文字系統 - 高對比全白 */
    --text-primary: #FFFFFF;
    --text-secondary: #FFFFFF;
    --text-muted: #B0B0B0;

    /* 結構 */
    --border: #30363D;
    --border-dim: #21262D;

    /* 字體 */
    --font-sans: 'Inter', -apple-system, system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;
}

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

html,
body {
    height: 100%;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.main-frame {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ========== 頂部指揮列 ========== */
.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 24px;
    height: 64px;
    background: var(--bg-panel);
    border-bottom: 2px solid var(--border);
    flex-shrink: 0;
    position: relative;
    overflow: visible;
}

/* 全寬掃描線在 top-bar 下方 */
.top-bar::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: -100%;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg,
        transparent 0%,
        var(--color-radar) 50%,
        transparent 100%);
    -webkit-animation: radar-scan-full 4s linear infinite;
    animation: radar-scan-full 4s linear infinite;
    box-shadow: 0 0 8px var(--color-radar);
    z-index: 10;
}

@-webkit-keyframes radar-scan-full {
    0% {
        left: -100%;
    }
    100% {
        left: 100%;
    }
}

@keyframes radar-scan-full {
    0% {
        left: -100%;
    }
    100% {
        left: 100%;
    }
}

.logo-text {
    font-size: 24px;
    font-weight: 900;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: #00FF88;
    text-shadow:
        0 0 10px #00FF88,
        0 0 20px #00FF88,
        0 0 30px #00FF88,
        0 0 40px #00FF88,
        0 0 50px rgba(0, 255, 136, 0.5);
}

.status-info {
    display: flex;
    align-items: center;
    gap: 20px;
    font-size: 13px;
    color: var(--text-secondary);
    font-family: var(--font-mono);
}

.separator {
    opacity: 0.3;
}

#last-update {
    color: var(--color-radar-bright);
    font-weight: 600;
}

#topic-count {
    color: var(--color-radar);
    font-weight: 700;
}

/* 載入進度狀態樣式 */
#loading-status.status-loading {
    color: var(--color-alert);
    animation: loading-pulse 1.5s ease-in-out infinite;
}

#loading-status.status-loaded {
    color: var(--color-radar-bright);
    font-weight: 600;
}

@keyframes loading-pulse {
    0%, 100% {
        color: var(--color-alert);
        text-shadow: 0 0 5px rgba(239, 68, 68, 0.5);
    }
    50% {
        color: #FF6B6B;
        text-shadow: 
            0 0 10px #FF6B6B,
            0 0 20px rgba(255, 107, 107, 0.6);
    }
}

/* 頂部操作按鈕 */
.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.btn-refresh,
.btn-refresh-summary {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border);
    padding: 7px 16px;
    border-radius: 2px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    font-family: var(--font-sans);
}

.btn-refresh:hover,
.btn-refresh-summary:hover {
    background: var(--bg-elevated);
    border-color: var(--color-radar);
    color: var(--color-radar);
}

.btn-refresh:disabled,
.btn-refresh-summary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.settings-link {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 7px 16px;
    border: 1px solid var(--border);
    border-radius: 2px;
    font-size: 13px;
    font-weight: 600;
    transition: all 0.2s;
}

.settings-link:hover {
    background: var(--bg-elevated);
    border-color: var(--color-radar);
    color: var(--color-radar);
}

/* ========== 主儀表板區域 ========== */
.dashboard {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 550px));
    gap: 16px;
    padding: 16px;
    flex: 1;
    overflow-y: auto;
    align-items: start;
    width: 100%;
    justify-content: center;
}

/* 載入中 */
.loading-placeholder {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    color: var(--text-muted);
    font-size: 15px;
    padding: 60px;
}

.loading-spinner {
    width: 36px;
    height: 36px;
    border: 3px solid var(--border);
    border-top-color: var(--color-radar);
    border-radius: 50%;
    -webkit-animation: spin 0.8s linear infinite;
    animation: spin 0.8s linear infinite;
}

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

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

/* 空狀態 */
.empty-state,
.error-state {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    color: var(--text-muted);
    padding: 60px;
}

.empty-text,
.error-text {
    font-size: 16px;
    color: var(--text-secondary);
}

.empty-action {
    color: var(--color-radar);
    text-decoration: none;
    padding: 10px 20px;
    border: 1px solid var(--color-radar);
    border-radius: 2px;
    transition: all 0.2s;
    font-size: 14px;
    font-weight: 600;
}

.empty-action:hover {
    background: var(--color-radar);
    color: var(--bg-primary);
    box-shadow: 0 0 25px var(--color-radar);
}

.retry-btn {
    background: var(--color-radar);
    color: var(--bg-primary);
    border: none;
    padding: 10px 20px;
    border-radius: 2px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    font-family: var(--font-sans);
    transition: all 0.2s;
}

.retry-btn:hover {
    background: var(--color-radar-bright);
    box-shadow: 0 0 25px var(--color-radar);
}

/* ========== 專題卡片 ========== */
.topic-card {
    background: var(--bg-panel);
    border: 1px solid var(--border-dim);
    border-radius: 2px;
    padding: 18px;
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 14px;
    height: calc(100vh - 200px);
    min-height: 600px;
    overflow: hidden;
    transition: all 0.2s;
}

.topic-card:hover {
    border-color: var(--border);
    box-shadow: 0 0 35px rgba(57, 255, 20, 0.15);
}

/* 拖動功能樣式 */
.topic-card[draggable="true"] {
    cursor: move;
}

.topic-card.dragging {
    opacity: 0.5;
    border-color: var(--color-radar);
}

.topic-card.drag-over {
    border-color: var(--color-radar-bright);
    background: rgba(0, 200, 83, 0.05);
}

.drag-handle {
    position: absolute;
    top: 18px;
    left: 18px;
    color: var(--text-muted);
    font-size: 20px;
    cursor: grab;
    user-select: none;
    z-index: 10;
    opacity: 0;
    transition: opacity 0.2s;
}

.topic-card:hover .drag-handle {
    opacity: 1;
}

.drag-handle:active {
    cursor: grabbing;
}

.topic-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: var(--color-radar);
    box-shadow: 0 0 10px var(--color-radar);
}

/* 專題標題區 */
.topic-header {
    flex-shrink: 0;
}

.topic-name {
    font-size: 24px;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: 0.5px;
    text-shadow: 0 0 8px rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
}

/* 新聞更新時的閃爍效果 */
.topic-name.news-updated {
    -webkit-animation: news-flash 1.5s ease-out;
    animation: news-flash 1.5s ease-out;
}

@-webkit-keyframes news-flash {
    0% {
        color: var(--color-radar);
        text-shadow:
            0 0 15px var(--color-radar),
            0 0 30px var(--color-radar),
            0 0 45px var(--color-radar);
    }
    50% {
        color: var(--color-radar-bright);
        text-shadow:
            0 0 20px var(--color-radar-bright),
            0 0 40px var(--color-radar),
            0 0 60px var(--color-radar);
    }
    100% {
        color: var(--text-primary);
        text-shadow: 0 0 8px rgba(255, 255, 255, 0.3);
    }
}

@keyframes news-flash {
    0% {
        color: var(--color-radar);
        text-shadow:
            0 0 15px var(--color-radar),
            0 0 30px var(--color-radar),
            0 0 45px var(--color-radar);
    }
    50% {
        color: var(--color-radar-bright);
        text-shadow:
            0 0 20px var(--color-radar-bright),
            0 0 40px var(--color-radar),
            0 0 60px var(--color-radar);
    }
    100% {
        color: var(--text-primary);
        text-shadow: 0 0 8px rgba(255, 255, 255, 0.3);
    }
}

.topic-keywords {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-top: 8px;
    font-family: var(--font-mono);
    flex-shrink: 0;
    text-shadow: 0 0 5px rgba(203, 213, 225, 0.2);
    height: 45px;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

/* 摘要區 */
.ai-summary {
    border-top: 1px solid var(--border-dim);
    padding-top: 14px;
    flex-shrink: 0;
}

.section-label {
    font-size: 14px;
    letter-spacing: 2px;
    color: var(--color-radar);
    margin-bottom: 10px;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 800;
    transition: all 0.3s ease;
}

/* 新聞更新時 section label 的閃爍效果 */
.section-label.news-updated {
    -webkit-animation: section-flash 1.5s ease-out;
    animation: section-flash 1.5s ease-out;
}

@-webkit-keyframes section-flash {
    0% {
        color: var(--color-radar);
        text-shadow: none;
    }
    25% {
        color: #FF6B6B;
        text-shadow:
            0 0 10px #FF6B6B,
            0 0 20px #FF6B6B,
            0 0 30px rgba(255, 107, 107, 0.8);
    }
    50% {
        color: var(--color-alert);
        text-shadow:
            0 0 15px var(--color-alert),
            0 0 30px var(--color-alert),
            0 0 45px rgba(239, 68, 68, 0.9),
            0 0 60px rgba(239, 68, 68, 0.6);
    }
    75% {
        color: #FF6B6B;
        text-shadow:
            0 0 10px #FF6B6B,
            0 0 20px #FF6B6B,
            0 0 30px rgba(255, 107, 107, 0.8);
    }
    100% {
        color: var(--color-radar);
        text-shadow: none;
    }
}

@keyframes section-flash {
    0% {
        color: var(--color-radar);
        text-shadow: none;
    }
    25% {
        color: #FF6B6B;
        text-shadow:
            0 0 10px #FF6B6B,
            0 0 20px #FF6B6B,
            0 0 30px rgba(255, 107, 107, 0.8);
    }
    50% {
        color: var(--color-alert);
        text-shadow:
            0 0 15px var(--color-alert),
            0 0 30px var(--color-alert),
            0 0 45px rgba(239, 68, 68, 0.9),
            0 0 60px rgba(239, 68, 68, 0.6);
    }
    75% {
        color: #FF6B6B;
        text-shadow:
            0 0 10px #FF6B6B,
            0 0 20px #FF6B6B,
            0 0 30px rgba(255, 107, 107, 0.8);
    }
    100% {
        color: var(--color-radar);
        text-shadow: none;
    }
}

.update-badge {
    background: rgba(0, 200, 83, 0.2);
    padding: 3px 10px;
    border-radius: 10px;
    font-size: 11px;
    color: var(--color-radar-bright);
    text-transform: none;
    font-family: var(--font-mono);
    font-weight: 500;
}

.summary-content {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-secondary);
    min-height: 120px;
    max-height: 120px;
    overflow-y: auto;
    font-weight: 400;
    text-shadow: 0 0 5px rgba(255, 255, 255, 0.15);
    white-space: pre-line;
    padding-top: 0;
    margin-top: 0;
}

.summary-content::-webkit-scrollbar {
    width: 4px;
}

.summary-content::-webkit-scrollbar-thumb {
    background: var(--bg-panel);
    border-radius: 2px;
    transition: background 0.2s;
}

.ai-summary:hover .summary-content::-webkit-scrollbar-thumb {
    background: var(--color-radar-dim);
}

/* 關注焦點區 */
.focus-section {
    border-top: 1px solid var(--border-dim);
    padding-top: 14px;
    flex-shrink: 0;
}

.focus-content {
    font-size: 14px;
    line-height: 1.9;
    color: var(--text-secondary);
    white-space: pre-line;
    font-weight: 400;
    min-height: 100px;
    max-height: 100px;
    overflow-y: auto;
}

.focus-content::-webkit-scrollbar {
    width: 4px;
}

.focus-content::-webkit-scrollbar-thumb {
    background: var(--color-radar-dim);
    border-radius: 2px;
}

/* 新聞列表區 - 自動分配空間 */
.news-list {
    border-top: 1px solid var(--border-dim);
    padding-top: 14px;
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    min-height: 200px;
}

.news-feed {
    flex: 1;
    overflow-y: auto;
    min-height: 0;
}

.news-feed::-webkit-scrollbar {
    width: 4px;
}

.news-feed::-webkit-scrollbar-thumb {
    background: var(--bg-panel);
    border-radius: 2px;
    transition: background 0.2s;
}

.news-list:hover .news-feed::-webkit-scrollbar-thumb {
    background: var(--color-radar-dim);
}

.news-item {
    padding: 8px 0;
    border-bottom: 1px solid var(--border-dim);
}

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

.news-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 5px;
}

.news-time {
    font-size: 12px;
    background: var(--bg-elevated);
    padding: 3px 8px;
    border-radius: 2px;
    color: var(--color-radar-bright);
    font-family: var(--font-mono);
    font-weight: 600;
}

.news-source {
    font-size: 12px;
    background: var(--bg-elevated);
    padding: 3px 8px;
    border-radius: 2px;
    color: var(--text-muted);
    font-weight: 600;
}

a.news-title {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
    display: block;
    text-decoration: none;
    transition: all 0.2s;
    font-weight: 400;
}

a.news-title:hover {
    color: var(--text-primary);
    text-shadow: 0 0 8px rgba(255, 255, 255, 0.3);
}

.news-item.empty {
    color: var(--text-muted);
    font-size: 13px;
    text-align: center;
    padding: 20px 0;
}

/* 國際新聞列表區 - 自動佔滿剩餘空間 */
.intl-news-list {
    border-top: 1px solid var(--border-dim);
    padding-top: 14px;
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    min-height: 200px;
}

.intl-news-feed {
    flex: 1;
    overflow-y: auto;
    min-height: 0;
}

.intl-news-feed::-webkit-scrollbar {
    width: 4px;
}

.intl-news-feed::-webkit-scrollbar-thumb {
    background: var(--bg-panel);
    border-radius: 2px;
    transition: background 0.2s;
}

.intl-news-list:hover .intl-news-feed::-webkit-scrollbar-thumb {
    background: var(--color-radar-dim);
}

/* ========== 底部資訊列 ========== */
.bottom-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 24px;
    background: var(--bg-panel);
    border-top: 1px solid var(--border-dim);
    font-size: 12px;
    color: var(--text-muted);
    flex-shrink: 0;
    font-family: var(--font-mono);
}

/* ========== 響應式調整 ========== */
@media (max-width: 768px) {
    .dashboard {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 12px;
        padding: 12px;
    }

    .top-bar {
        padding: 0 16px;
        height: 56px;
    }

    .logo-text {
        font-size: 18px;
    }

    .status-info {
        font-size: 12px;
        gap: 12px;
    }

    .topic-card {
        height: auto;
        min-height: 800px;
    }

    /* 在小螢幕上調整新聞列表高度 */
    .news-list {
        min-height: 220px;
        max-height: 220px;
    }

    .intl-news-list {
        min-height: 200px;
        flex: 1;
    }
}