/* ============================================
   Coinwit Trade - Mobile Responsive Design
   Optimized for Phones & Tablets
   ============================================ */

/* Mobile Bottom Navigation (Hidden on desktop) */
.mobile-bottom-nav {
    display: none;
}

@media (max-width: 768px) {
    /* ── Top Nav Adjustments ── */
    .main-nav .nav-links {
        display: none !important;
    }

    .main-nav {
        padding: 0 12px;
        height: 50px;
    }

    .nav-logo {
        font-size: 16px;
    }

    /* ── Bottom Nav Bar ── */
    .mobile-bottom-nav {
        display: flex;
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        height: 60px;
        background: var(--bg-secondary);
        border-top: 1px solid var(--border);
        z-index: 1000;
        justify-content: space-around;
        align-items: center;
        padding: 4px 0;
        box-shadow: 0 -4px 15px rgba(0, 0, 0, 0.3);
    }

    .mobile-bottom-nav a {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 3px;
        color: var(--text-secondary);
        text-decoration: none;
        font-size: 11px;
        font-weight: 500;
        flex: 1;
        height: 100%;
        transition: var(--transition);
        cursor: pointer;
    }

    .mobile-bottom-nav a i {
        font-size: 18px;
    }

    .mobile-bottom-nav a.active {
        color: var(--accent);
    }

    .mobile-bottom-nav a:hover {
        color: var(--text-primary);
    }

    /* ── Main Content Spacing ── */
    #app-content {
        margin-top: 0 !important;
        padding: 8px !important;
        padding-bottom: 20px !important;
    }

    /* ── Layout Grids ── */
    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr !important;
    }

    /* ── BO Trading Mobile Layout ── */
    .trading-layout {
        grid-template-columns: 1fr !important;
        height: auto !important;
    }

    .trading-sidebar {
        border-left: none;
        border-top: 1px solid var(--border);
        height: auto !important;
    }

    .bo-panel {
        padding: 16px 12px;
    }

    .bo-direction .btn-up,
    .bo-direction .btn-down {
        padding: 18px 12px;
        font-size: 16px;
    }

    /* ── Futures Trading Mobile Layout ── */
    .futures-layout {
        display: flex !important;
        flex-direction: column !important;
    }

    .futures-sidebar-left {
        order: 3;
        border-right: none !important;
        border-top: 1px solid var(--border);
    }

    .trading-main {
        order: 1;
    }

    .futures-sidebar-right {
        order: 2;
        border-left: none !important;
        border-top: 1px solid var(--border);
        border-bottom: 1px solid var(--border);
        padding: 12px 0;
    }

    .symbol-header {
        padding: 10px 12px;
        gap: 12px;
    }

    .chart-canvas-container {
        min-height: 280px !important;
        height: 320px !important;
    }

    .order-long-short {
        display: flex;
        gap: 10px;
    }

    .order-long-short .btn {
        padding: 14px 10px;
        font-size: 15px;
    }

    /* ── Tables & Cards ── */
    .card-header {
        padding: 12px 14px;
    }

    .card-body {
        padding: 14px 12px;
    }

    .table th, .table td {
        padding: 8px 10px;
        font-size: 12px;
    }

    /* ── Modals Bottom Sheet ── */
    .modal {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        max-width: 100% !important;
        width: 100% !important;
        border-radius: 16px 16px 0 0 !important;
        max-height: 85vh;
        animation: modalSlideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1) !important;
    }

    @keyframes modalSlideUp {
        from { transform: translateY(100%); }
        to { transform: translateY(0); }
    }
}

@media (max-width: 480px) {
    .symbol-name {
        font-size: 14px;
    }

    .symbol-price {
        font-size: 16px !important;
    }

    .stat-value {
        font-size: 22px;
    }

    .toast {
        min-width: calc(100vw - 32px);
        left: 16px;
        right: 16px;
    }
}

/* ============================================
   iPad & Tablet Responsive Rules (769px - 1024px)
   ============================================ */
@media (min-width: 769px) and (max-width: 1024px) {
    .main-nav {
        padding: 0 20px;
    }

    .main-nav .nav-links {
        gap: 16px;
    }

    .grid-4 {
        grid-template-columns: repeat(2, 1fr) !important;
    }

    .grid-3 {
        grid-template-columns: repeat(2, 1fr) !important;
    }

    /* Trading layout on tablet */
    .trading-layout {
        grid-template-columns: 1fr 300px !important;
    }

    .futures-layout {
        grid-template-columns: 1fr 320px !important;
    }

    /* Ensure tables allow clean scrolling if wide */
    .table-responsive, .card-body {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
}

/* Global Table & Container Guard for Responsive Devices */
@media (max-width: 1024px) {
    table {
        width: 100%;
        border-collapse: collapse;
    }
    
    .table-container, .card-body {
        overflow-x: auto;
        max-width: 100%;
    }
}