/* ============ 小可AI - 量化优选系统样式 ============ */

:root {
    --bg: #0f1419;
    --bg-card: #1a1f2e;
    --bg-card-hover: #1e2436;
    --bg-input: #151922;
    --border: #2a3040;
    --text: #e0e6ed;
    --text-secondary: #8892a4;
    --text-muted: #5c6678;
    --red: #ef5350;
    --green: #26a69a;
    --yellow: #ffca28;
    --blue: #42a5f5;
    --orange: #ff7043;
    --purple: #7e57c2;
    --gold: #ffd54f;
    --primary: #1976d2;
    --accent: #4fc3f7;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

/* ===== Header ===== */
.header {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.header .logo {
    font-size: 1.5em;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 1px;
}

.header .logo span { color: var(--text-secondary); font-weight: 400; font-size: 0.7em; }

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.btn {
    padding: 8px 20px;
    border: 1px solid var(--border);
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.2s;
    background: var(--bg-input);
    color: var(--text);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

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

.btn-primary {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

.btn-primary:hover {
    background: #1565c0;
    color: #fff;
}

.btn-sm {
    padding: 4px 12px;
    font-size: 12px;
}

.current-time {
    font-size: 13px;
    color: var(--text-secondary);
    font-variant-numeric: tabular-nums;
}

.market-status {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    padding: 4px 12px;
    border-radius: 12px;
    background: rgba(0,0,0,0.2);
}

.market-status .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-muted);
}

.market-status .dot.trading { background: var(--green); animation: pulse 2s infinite; }
.market-status .dot.closed { background: var(--text-muted); }

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

/* ===== Container ===== */
.container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 20px 24px;
}

/* ===== Nav tabs ===== */
.nav-tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 0;
}

.nav-tab {
    padding: 10px 20px;
    cursor: pointer;
    border: none;
    background: none;
    color: var(--text-secondary);
    font-size: 14px;
    border-radius: 6px 6px 0 0;
    transition: all 0.2s;
    position: relative;
}

.nav-tab:hover { color: var(--text); }

.nav-tab.active {
    color: var(--accent);
    background: rgba(79, 195, 247, 0.08);
}

.nav-tab.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--accent);
}

/* ===== Stats Row ===== */
.stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px;
}

.stat-card .label {
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.stat-card .value {
    font-size: 28px;
    font-weight: 700;
    color: var(--text);
}

.stat-card .value.green { color: var(--green); }
.stat-card .value.red { color: var(--red); }
.stat-card .value.blue { color: var(--blue); }
.stat-card .value.gold { color: var(--gold); }

.stat-card .sub {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* ===== Tables ===== */
.table-container {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 24px;
}

.table-header {
    padding: 14px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.table-header h3 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
}

.table-wrapper {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

table th {
    background: rgba(0,0,0,0.2);
    padding: 10px 12px;
    text-align: left;
    font-weight: 500;
    color: var(--text-secondary);
    white-space: nowrap;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
}

table td {
    padding: 8px 12px;
    border-bottom: 1px solid rgba(42, 48, 64, 0.5);
    white-space: nowrap;
}

table tbody tr:hover {
    background: var(--bg-card-hover);
}

.cell-up { color: var(--red); }
.cell-down { color: var(--green); }
.cell-neutral { color: var(--text-secondary); }

.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 500;
}

.badge-buy { background: rgba(239, 83, 80, 0.15); color: var(--red); }
.badge-watch { background: rgba(255, 202, 40, 0.15); color: var(--yellow); }
.badge-hold { background: rgba(136, 146, 164, 0.15); color: var(--text-secondary); }
.badge-skip { background: rgba(92, 102, 120, 0.15); color: var(--text-muted); }
.badge-win { background: rgba(38, 166, 154, 0.15); color: var(--green); }
.badge-loss { background: rgba(239, 83, 80, 0.15); color: var(--red); }
.badge-pending { background: rgba(255, 202, 40, 0.15); color: var(--yellow); }

.sector-tag {
    display: inline-block;
    padding: 2px 6px;
    margin: 1px 2px;
    border-radius: 3px;
    font-size: 11px;
    background: rgba(66, 165, 245, 0.1);
    color: var(--blue);
}

.progress-bar {
    width: 60px;
    height: 4px;
    background: rgba(255,255,255,0.1);
    border-radius: 2px;
    overflow: hidden;
    display: inline-block;
    vertical-align: middle;
    margin-right: 6px;
}

.progress-bar .fill {
    height: 100%;
    border-radius: 2px;
    transition: width 0.3s;
}

.fill-green { background: var(--green); }
.fill-yellow { background: var(--yellow); }
.fill-red { background: var(--red); }
.fill-blue { background: var(--blue); }

/* ===== Search & Filter ===== */
.filter-bar {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
    flex-wrap: wrap;
    align-items: center;
}

.search-input {
    padding: 8px 14px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg-input);
    color: var(--text);
    font-size: 13px;
    width: 200px;
    outline: none;
}

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

select {
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg-input);
    color: var(--text);
    font-size: 13px;
    outline: none;
    cursor: pointer;
}

select:focus { border-color: var(--accent); }

/* ===== Loading ===== */
.loading {
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
}

.spinner {
    display: inline-block;
    width: 24px;
    height: 24px;
    border: 2px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ===== Empty state ===== */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.empty-state p { margin-top: 12px; font-size: 14px; }

/* ===== Toast ===== */
.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 12px 24px;
    border-radius: 6px;
    color: #fff;
    font-size: 14px;
    z-index: 9999;
    animation: slideIn 0.3s ease;
}

.toast.success { background: var(--green); }
.toast.error { background: var(--red); }
.toast.info { background: var(--blue); }

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .header { padding: 12px 16px; }
    .container { padding: 12px 16px; }
    .stats-row { grid-template-columns: repeat(2, 1fr); }
    .header .logo { font-size: 1.2em; }
    .nav-tab { padding: 8px 12px; font-size: 12px; }
}

/* ===== highlight animation ===== */
@keyframes highlight {
    0% { background: rgba(79, 195, 247, 0.2); }
    100% { background: transparent; }
}

.highlight-row {
    animation: highlight 2s ease;
}

/* ===== Score display ===== */
.score-display {
    font-weight: 700;
    font-size: 14px;
}

.score-high { color: var(--red); }
.score-mid { color: var(--yellow); }
.score-low { color: var(--text-secondary); }