* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; display: flex; height: 100vh; background: #f5f5f5; }

/* Hamburger button */
.menu-toggle {
    display: none;
    position: fixed;
    top: 12px; left: 12px;
    z-index: 1000;
    background: #1a1a2e;
    color: #fff;
    border: none;
    border-radius: 6px;
    padding: 8px 12px;
    font-size: 20px;
    cursor: pointer;
}

/* Sidebar */
.sidebar {
    width: 260px;
    background: #1a1a2e;
    color: #e0e0e0;
    padding: 20px;
    overflow-y: auto;
    flex-shrink: 0;
    transition: transform 0.3s ease;
    z-index: 999;
}
.sidebar h1 { font-size: 20px; color: #fff; margin-bottom: 20px; }
.sidebar h2 {
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #888;
    margin: 20px 0 10px;
}
.sidebar .section { margin-bottom: 15px; }
.sidebar .section-item {
    display: block;
    padding: 8px 12px;
    border-radius: 6px;
    margin-bottom: 2px;
    font-size: 14px;
    color: #e0e0e0;
    text-decoration: none;
}
.sidebar .section-item:hover { background: #16213e; }
.sidebar .section-item.active { background: #0f3460; color: #fff; }

/* Main content */
.main { flex: 1; padding: 30px; overflow-y: auto; }
.main h2 { font-size: 22px; margin-bottom: 20px; color: #1a1a2e; }

/* Controls */
.controls { display: flex; gap: 15px; margin-bottom: 20px; flex-wrap: wrap; align-items: center; }
.controls label { font-size: 14px; color: #555; }
.controls select, .controls input {
    padding: 6px 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 14px;
}

/* Number grid */
.number-grid {
    display: grid;
    grid-template-columns: repeat(10, 1fr);
    gap: 4px;
    margin-bottom: 20px;
    max-width: 500px;
}
.number-btn {
    padding: 8px 4px;
    text-align: center;
    border: 1px solid #ccc;
    border-radius: 4px;
    cursor: pointer;
    font-size: 13px;
    background: #fff;
    user-select: none;
}
.number-btn:hover { background: #e8e8e8; }
.number-btn.selected { background: #0f3460; color: #fff; border-color: #0f3460; }

/* Chart */
.chart-container {
    background: #fff;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    position: relative;
    height: 500px;
    margin-bottom: 20px;
}

/* Draw history */
.draw-row {
    display: flex;
    align-items: center;
    padding: 6px 12px;
    border-bottom: 1px solid #eee;
    font-size: 14px;
}
.draw-row:hover { background: #f0f4ff; }
.draw-date { width: 110px; font-weight: 500; color: #333; }
.draw-day { width: 35px; color: #888; font-size: 12px; }
.draw-balls { display: flex; gap: 6px; }
.draw-ball {
    width: 36px; height: 36px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-weight: 600; font-size: 14px;
    color: #fff;
    text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}
.draw-ball.g0 { background: #e6194b; }
.draw-ball.g1 { background: #3cb44b; }
.draw-ball.g2 { background: #4363d8; }
.draw-ball.g3 { background: #f58231; }
.draw-ball.g4 { background: #911eb4; }
.draw-ball.odd { background: #4363d8; }
.draw-ball.even { background: #e6194b; }
.draw-ball.highlight {
    box-shadow: 0 0 0 3px #000, 0 0 0 5px #ffd700;
}
.draw-sz {
    margin-left: 12px;
    width: 28px; height: 28px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-weight: 600; font-size: 12px;
    background: #ddd; color: #333;
    border: 2px solid #bbb;
}
.draw-header {
    display: flex; align-items: center; padding: 8px 12px;
    font-size: 12px; color: #888; border-bottom: 2px solid #ccc;
    font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px;
}

/* Sidebar overlay for mobile */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.4);
    z-index: 998;
}

/* Mobile responsive */
@media (max-width: 768px) {
    .menu-toggle { display: block; }

    .sidebar {
        position: fixed;
        top: 0; left: 0; bottom: 0;
        transform: translateX(-100%);
    }
    .sidebar.open { transform: translateX(0); }
    .sidebar-overlay.open { display: block; }

    .main { padding: 60px 15px 15px; }

    .controls { flex-direction: column; align-items: flex-start; gap: 8px; }

    .chart-container { height: 350px; padding: 10px; }

    .number-grid { grid-template-columns: repeat(7, 1fr); }

    .draw-ball { width: 28px; height: 28px; font-size: 11px; }
    .draw-balls { gap: 3px; }
    .draw-sz { width: 22px; height: 22px; font-size: 10px; margin-left: 6px; }
    .draw-date { width: 85px; font-size: 12px; }
    .draw-day { width: 25px; font-size: 11px; }
    .draw-row { padding: 4px 8px; font-size: 12px; }
    .draw-header { padding: 6px 8px; font-size: 10px; }
}