/* ── Reset & Variables ── */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root,
[data-theme="dark"] {
    --bg: #0d1117;
    --bg2: #161b22;
    --bg3: #21262d;
    --border: #30363d;
    --text: #c9d1d9;
    --text2: #8b949e;
    --text3: #484f58;
    --accent: #58a6ff;
    --up: #3fb68b;
    --down: #ff6b6b;
    --chart-bg: #0d1117;
    --chart-grid: #161b22;
    --chart-text: #8b949e;
    --chart-split: #21262d;
    --card-shadow: 0 1px 3px rgba(0,0,0,0.3);
}

[data-theme="light"] {
    --bg: #f0f2f5;
    --bg2: #ffffff;
    --bg3: #f5f5f5;
    --border: #d9d9d9;
    --text: #262626;
    --text2: #8c8c8c;
    --text3: #bfbfbf;
    --accent: #1890ff;
    --up: #cf1322;
    --down: #389e0d;
    --chart-bg: #ffffff;
    --chart-grid: #f5f5f5;
    --chart-text: #8c8c8c;
    --chart-split: #e8e8e8;
    --card-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
    overflow-x: hidden;
}

/* ── Toolbar ── */
.toolbar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 16px;
    background: var(--bg2);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 50;
    flex-wrap: wrap;
}

.logo {
    font-size: 16px;
    font-weight: 700;
    color: var(--accent);
    white-space: nowrap;
}

.search-box {
    display: flex;
    gap: 6px;
    position: relative;
}

.search-box input {
    background: var(--bg3);
    color: var(--text);
    border: 1px solid var(--border);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 13px;
    width: 220px;
    outline: none;
    transition: border-color 0.2s;
}

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

.search-results {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 6px;
    max-height: 300px;
    overflow-y: auto;
    z-index: 100;
    display: none;
}

.search-results.show { display: block; }

.search-item {
    padding: 8px 12px;
    cursor: pointer;
    border-bottom: 1px solid var(--border);
    font-size: 13px;
    transition: background 0.15s;
}

.search-item:hover { background: var(--bg3); }
.search-item:last-child { border-bottom: none; }

.search-item-code {
    font-weight: 600;
    color: var(--accent);
    margin-right: 8px;
}

.toolbar-right {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-left: auto;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.kline-btns {
    display: flex;
    gap: 4px;
}

.volume-config {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 8px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg3);
}

.volume-config-label {
    font-size: 12px;
    color: var(--text3);
    white-space: nowrap;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
    border: none;
    padding: 6px 14px;
    border-radius: 6px;
    font-size: 13px;
    cursor: pointer;
    transition: opacity 0.2s;
}

.btn-primary:hover { opacity: 0.85; }

.btn-kline,
.btn-volume {
    background: var(--bg3);
    color: var(--text2);
    border: 1px solid var(--border);
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.15s;
}

.btn-kline:hover,
.btn-volume:hover { border-color: var(--accent); color: var(--text); }

.btn-kline.active,
.btn-volume.active { background: var(--accent); color: #fff; border-color: var(--accent); }

.btn-icon {
    background: none;
    border: none;
    font-size: 16px;
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: background 0.15s;
}

.btn-icon:hover { background: var(--bg3); }

.btn-sm {
    background: var(--bg3);
    color: var(--text2);
    border: 1px solid var(--border);
    padding: 3px 10px;
    border-radius: 4px;
    font-size: 11px;
    cursor: pointer;
}

.btn-sm:hover { border-color: var(--accent); }

.user-info {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--text2);
}

/* ── Signal Panel ── */
.signal-panel {
    background: var(--bg2);
    border-bottom: 1px solid var(--border);
    max-height: 280px;
    overflow: hidden;
    transition: max-height 0.3s;
}

.signal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 16px;
    border-bottom: 1px solid var(--border);
}

.signal-tabs {
    display: flex;
    gap: 4px;
}

.signal-tab {
    background: none;
    border: none;
    color: var(--text2);
    padding: 5px 12px;
    font-size: 12px;
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.15s;
}

.signal-tab:hover { background: var(--bg3); }
.signal-tab.active { background: var(--accent); color: #fff; }

.signal-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.status-text {
    font-size: 11px;
    color: var(--text3);
}

.signal-content {
    display: none;
    overflow-y: auto;
    max-height: 230px;
}

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

.signal-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
}

.signal-table thead {
    position: sticky;
    top: 0;
    background: var(--bg3);
    z-index: 1;
}

.signal-table th {
    padding: 6px 10px;
    text-align: center;
    font-weight: 600;
    color: var(--text2);
    border-bottom: 1px solid var(--border);
}

.signal-table td {
    padding: 5px 10px;
    text-align: center;
    border-bottom: 1px solid var(--border);
}

.signal-table tbody tr:hover { background: var(--bg3); }

.signal-table .empty {
    color: var(--text3);
    padding: 20px;
}

/* ── Chart Area ── */
.chart-wrap {
    padding: 0;
}

.chart-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 16px;
    background: var(--bg2);
    border-bottom: 1px solid var(--border);
    flex-wrap: wrap;
    gap: 8px;
}

.stock-title {
    display: flex;
    align-items: center;
    gap: 8px;
}

.stock-title span:first-child {
    font-size: 15px;
    font-weight: 600;
}

.code-badge {
    background: var(--accent);
    color: #fff;
    padding: 1px 8px;
    border-radius: 10px;
    font-size: 11px;
    font-weight: 600;
}

.price-bar {
    display: flex;
    align-items: baseline;
    gap: 8px;
    font-size: 13px;
    flex-wrap: wrap;
}

.price-val {
    font-size: 20px;
    font-weight: 700;
}

.change-val {
    font-weight: 600;
}

.price-up { color: var(--up); }
.price-down { color: var(--down); }

.sep { color: var(--text3); }

.label-sm {
    font-size: 11px;
    color: var(--text3);
    margin-left: 4px;
}

.ind-val {
    font-weight: 600;
    font-size: 12px;
    margin-right: 4px;
}

.volume-legend {
    font-size: 11px;
    color: var(--text2);
}

/* ── Loading ── */
.loading {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 200;
}

.loading.hidden { display: none; }

.spinner {
    width: 36px;
    height: 36px;
    border: 3px solid rgba(255,255,255,0.2);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.loading p {
    color: #fff;
    margin-top: 12px;
    font-size: 14px;
}

/* ── Dashboard (热门数据) ── */
.dashboard-wrap {
    padding: 16px;
    max-width: 1400px;
    margin: 0 auto;
}

.dashboard-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.dashboard-header h2 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
}

.dashboard-time {
    font-size: 12px;
    color: var(--text3);
}

.btn-refresh {
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 4px 8px;
    cursor: pointer;
    font-size: 14px;
    transition: border-color 0.2s;
}

.btn-refresh:hover { border-color: var(--accent); }

.dashboard-section {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px 16px;
    margin-bottom: 16px;
}

.dashboard-section h3 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 10px;
}

.index-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 10px;
}

.index-card {
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 12px;
    cursor: pointer;
    transition: border-color 0.2s, transform 0.15s;
}

.index-card:hover {
    border-color: var(--accent);
    transform: translateY(-1px);
}

.index-card .idx-name {
    font-size: 13px;
    color: var(--text2);
    margin-bottom: 4px;
}

.index-card .idx-price {
    font-size: 20px;
    font-weight: 700;
}

.index-card .idx-change {
    font-size: 13px;
    font-weight: 600;
    margin-top: 2px;
}

/* ── Back Button ── */
.btn-back {
    background: var(--bg3);
    color: var(--accent);
    border: 1px solid var(--border);
    padding: 4px 12px;
    border-radius: 6px;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
    font-weight: 600;
    white-space: nowrap;
}

.btn-back:hover {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

/* ── Section Header with Expand ── */
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
}

.section-header h3 {
    margin-bottom: 0;
}

.btn-expand {
    background: none;
    border: 1px solid var(--border);
    color: var(--text2);
    padding: 3px 10px;
    border-radius: 4px;
    font-size: 11px;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.btn-expand:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.dashboard-row {
    display: flex;
    gap: 16px;
}

.dashboard-half {
    flex: 1;
    min-width: 0;
}

.dashboard-third {
    flex: 1;
    min-width: 0;
}

.hot-table-wrap {
    max-height: 520px;
    overflow-y: auto;
    transition: max-height 0.3s ease;
}

.amount-cell {
    color: var(--text2);
    font-family: monospace;
    font-size: 11px;
}

.hot-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
}

.hot-table thead {
    position: sticky;
    top: 0;
    background: var(--bg3);
    z-index: 1;
}

.hot-table th {
    padding: 6px 8px;
    text-align: center;
    font-weight: 600;
    color: var(--text2);
    border-bottom: 1px solid var(--border);
}

.hot-table td {
    padding: 5px 8px;
    text-align: center;
    border-bottom: 1px solid var(--border);
}

.hot-table tbody tr {
    cursor: pointer;
    transition: background 0.15s;
}

.hot-table tbody tr:hover { background: var(--bg3); }

.hot-table .rank-cell {
    font-weight: 700;
    color: var(--text3);
}

.hot-table .rank-cell.top3 {
    color: var(--accent);
}

.hot-table .name-cell {
    text-align: left;
    font-weight: 500;
}

.hot-table .code-cell {
    color: var(--text2);
    font-family: monospace;
}

.loading-placeholder {
    color: var(--text3);
    text-align: center;
    padding: 20px;
    font-size: 13px;
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text3); }

/* ── Responsive ── */
@media (max-width: 1024px) {
    .dashboard-row { flex-wrap: wrap; }
    .dashboard-third { flex: 1 1 calc(50% - 8px); min-width: 280px; }
}

@media (max-width: 768px) {
    .toolbar { gap: 8px; }
    .search-box input { width: 140px; }
    .kline-btns { display: none; }
    .price-bar { font-size: 12px; }
    .price-val { font-size: 16px; }
    .dashboard-row { flex-direction: column; }
    .dashboard-third { flex: 1 1 100%; }
    .index-cards { grid-template-columns: repeat(2, 1fr); }
}