* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; background: #0f1117; color: #e1e4e8; padding-bottom: 2rem; }
a { color: #58a6ff; }
nav { display: flex; justify-content: space-between; align-items: center; padding: 0.8rem 2rem; background: #161b22; border-bottom: 1px solid #30363d; }
nav h1 { font-size: 1.3rem; }
.nav-actions { display: flex; gap: 0.5rem; align-items: center; }
.tabs { display: flex; gap: 0; background: #161b22; border-bottom: 1px solid #30363d; padding: 0 2rem; }
.tab { padding: 0.6rem 1.2rem; color: #8b949e; text-decoration: none; font-size: 0.9rem; border-bottom: 2px solid transparent; }
.tab:hover { color: #e1e4e8; }
.tab.active { color: #e1e4e8; border-bottom-color: #58a6ff; font-weight: 600; }
.toolbar { display: flex; gap: 0.5rem; align-items: center; padding: 0.6rem 2rem; background: #0d1117; border-bottom: 1px solid #21262d; flex-wrap: wrap; }
.btn { padding: 0.5rem 1rem; border: 1px solid #30363d; background: #21262d; color: #e1e4e8; border-radius: 6px; cursor: pointer; font-size: 0.85rem; text-decoration: none; }
.btn:hover { background: #30363d; }
.btn-primary { background: #238636; border-color: #238636; color: #fff; }
.btn-primary:hover { background: #2ea043; }

.summary-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 1rem; padding: 1.5rem 2rem; }
.card { background: #161b22; border: 1px solid #30363d; border-radius: 8px; padding: 1rem; text-align: center; }
.card .label { display: block; font-size: 0.75rem; color: #8b949e; text-transform: uppercase; margin-bottom: 0.3rem; }
.card .value { display: block; font-size: 1.3rem; font-weight: 600; }

.charts-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; padding: 0 2rem; }
.chart-container { background: #161b22; border: 1px solid #30363d; border-radius: 8px; padding: 1rem; min-height: 320px; }
.chart-container h3 { font-size: 0.9rem; color: #8b949e; margin-bottom: 0.5rem; }
.chart-legend { margin-top: 0.8rem; display: flex; flex-wrap: wrap; gap: 0.4rem 1rem; }
.chart-legend-item { display: flex; align-items: center; gap: 0.3rem; font-size: 0.8rem; color: #e1e4e8; }
.chart-legend-dot { width: 10px; height: 10px; border-radius: 2px; flex-shrink: 0; }

.table-container, .section { margin: 1.5rem 2rem; background: #161b22; border: 1px solid #30363d; border-radius: 8px; padding: 1rem; overflow-x: auto; }
.table-container h2, .section h3 { margin-bottom: 1rem; font-size: 1.1rem; }
table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
th { text-align: left; padding: 0.6rem; color: #8b949e; border-bottom: 1px solid #30363d; font-weight: 500; }
td { padding: 0.6rem; border-bottom: 1px solid #21262d; }
tr:hover { background: #1c2128; }
tr { cursor: pointer; }

.positive { color: #3fb950; }
.negative { color: #f85149; }

.stock-header { padding: 1.5rem 2rem; display: flex; justify-content: space-between; align-items: center; }
.big-price { font-size: 2rem; font-weight: 700; margin-right: 1rem; }
.change { font-size: 1.1rem; }
.price-display { display: flex; align-items: baseline; }

.fundamentals-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 0.8rem; }
.fund-item { background: #0d1117; border: 1px solid #21262d; border-radius: 6px; padding: 0.7rem; }
.fund-item .fund-label { font-size: 0.7rem; color: #8b949e; text-transform: uppercase; }
.fund-item .fund-value { font-size: 1.1rem; font-weight: 600; margin-top: 0.2rem; }

.news-list { display: flex; flex-direction: column; gap: 0.5rem; }
.news-item { padding: 0.6rem; background: #0d1117; border-radius: 6px; border: 1px solid #21262d; }
.news-item a { font-size: 0.9rem; }
.news-item .news-meta { font-size: 0.7rem; color: #8b949e; margin-top: 0.2rem; }

.modal { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.7); display: flex; align-items: center; justify-content: center; z-index: 100; }
.modal-content { background: #161b22; border: 1px solid #30363d; border-radius: 12px; padding: 2rem; width: 400px; }
.modal-content h2 { margin-bottom: 1rem; }
.modal-content select, .modal-content input[type="file"] { width: 100%; padding: 0.5rem; margin-bottom: 1rem; background: #0d1117; border: 1px solid #30363d; color: #e1e4e8; border-radius: 6px; }
.modal-actions { display: flex; gap: 0.5rem; justify-content: flex-end; }

@media (max-width: 768px) {
    /* Nav */
    nav { padding: 0.5rem 1rem; }
    nav h1 { font-size: 1rem; }

    /* Tabs */
    .tabs { padding: 0 0.5rem; overflow-x: auto; -webkit-overflow-scrolling: touch; }
    .tab { padding: 0.5rem 0.8rem; font-size: 0.8rem; white-space: nowrap; }

    /* Toolbar */
    .toolbar { padding: 0.5rem 1rem; gap: 0.4rem; }
    .toolbar select, .toolbar .btn { font-size: 0.75rem; padding: 0.35rem 0.6rem; }

    /* Summary cards */
    .summary-cards { grid-template-columns: repeat(3, 1fr); gap: 0.5rem; padding: 0.8rem 1rem; }
    .card { padding: 0.6rem 0.4rem; }
    .card .label { font-size: 0.65rem; }
    .card .value { font-size: 1rem; }

    /* Charts */
    .charts-row { grid-template-columns: 1fr; padding: 0 1rem; }
    .chart-container { min-height: 250px; }

    /* Tables */
    .table-container, .section { margin: 0.8rem; padding: 0.6rem; }
    table { font-size: 0.75rem; }
    th, td { padding: 0.4rem 0.3rem; }

    /* Stock detail */
    .stock-header { padding: 1rem; flex-direction: column; align-items: flex-start; gap: 0.5rem; }
    .big-price { font-size: 1.5rem; }
    .fundamentals-grid { grid-template-columns: repeat(2, 1fr); gap: 0.5rem; }

    /* Modal */
    .modal-content { width: 90%; padding: 1.2rem; }

    /* Home layout */
    .home-layout { grid-template-columns: 1fr !important; padding: 0.8rem 1rem !important; }
    .idx-grid { grid-template-columns: repeat(2, 1fr) !important; }
}