#tracker-card {
    background: linear-gradient(145deg, #ffffff, #f9fafb);
    animation: slideInUp 0.8s ease-out;
    box-shadow: 0 12px 28px 0 rgba(0, 0, 0, 0.08), 0 2px 4px 0 rgba(0, 0, 0, 0.05);
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.seq-cell {
    text-align: center;
    color: #6b7280;
    font-size: 0.8rem;
    font-weight: 500;
}


/* --- Filter Section --- */
.filter-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: 1rem;
    align-items: end;
}

@media (min-width: 640px) {
    .filter-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .filter-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 1rem 1.5rem;
    }

    .search-bar {
        grid-column: 1 / -1;
    }
}

@media (min-width: 1280px) {
    .filter-grid {
        grid-template-columns: 2fr repeat(4, 1fr);
        gap: 1rem;
    }

    .search-bar {
        grid-column: auto;
    }
}


.filter-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: #374151;
    margin-bottom: 0.25rem;
}

.filter-input {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid #D1D5DB;
    border-radius: 0.375rem;
    background-color: white;
    box-shadow: inset 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    transition: all 0.2s ease-in-out;
    height: 42px;
    font-size: 0.9rem;
    -moz-appearance: textfield;
}

.filter-input::placeholder {
    color: #9ca3af;
    font-size: 0.85rem;
}


.filter-input::-webkit-outer-spin-button,
.filter-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.filter-input:focus {
    border-color: #fb7185;
    box-shadow: 0 0 0 3px rgba(251, 113, 133, 0.2);
    outline: none;
}

/* Custom Select Dropdown Styles for Windows UI */
.select-wrapper {
    position: relative;
    width: 100%;
}

.custom-select {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%239ca3af' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1.1em;
    padding-right: 2.5rem;
}

/* --- Stock List --- */
.stock-grid-header {
    display: none;
    align-items: center;
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
    border-bottom: 2px solid #e5e7eb;
    margin-bottom: 0.5rem;
    grid-template-columns: 0.3fr 2fr repeat(7, 1fr);
    gap: 1rem;
}

.stock-item {
    transition: background-color 0.2s ease-in-out;
    cursor: pointer;
}

.stock-name {
    font-weight: 600;
    color: #1f2937;
}

.stock-code {
    font-size: 0.8rem;
    color: #6b7280;
    margin-top: 0.125rem;
}

.stock-up {
    color: #ef4444;
}

.stock-down {
    color: #22c55e;
}

.stock-flat {
    color: #6b7280;
}

.mobile-view-card {
    display: none;
}


/* Desktop Layout (Grid) */
@media (min-width: 768px) {
    .stock-grid-header {
        display: grid;
    }

    .desktop-view-grid {
        display: grid;
        grid-template-columns: 0.3fr 2fr repeat(7, 1fr);
        gap: 1rem;
        align-items: center;
        padding: 0.75rem 1rem;
    }

    .stock-item {
        border-radius: 0.5rem;
        border: 1px solid #f3f4f6;
    }

    .stock-item:hover {
        background-color: #f9fafb;
        border-color: #e5e7eb;
    }
}

/* --- Mobile Optimizations --- */
@media (max-width: 767px) {
    #tracker-card {
        padding: 1rem;
    }

    /* Stock List */
    .desktop-view-grid {
        display: none;
    }

    .mobile-view-card {
        display: block;
        padding: 0.75rem;
        border-radius: 0.5rem;
        background-color: #f9fafb;
        border: 1px solid #f3f4f6;
    }

    .mobile-main-info {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr;
        align-items: center;
        gap: 0.5rem;
        padding-bottom: 0.75rem;
        margin-bottom: 0.75rem;
        border-bottom: 1px solid #e5e7eb;
    }

    .mobile-secondary-info {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 0.85rem 0.5rem;
        font-size: 0.875rem;
    }

    .info-pair {
        display: flex;
        flex-direction: column;
    }

    .info-label {
        color: #6b7280;
        font-size: 0.75rem;
        margin-bottom: 0.125rem;
    }

    .info-value {
        font-weight: 500;
        color: #1f2937;
        word-break: break-all;
    }
}

/* --- Pagination --- */
.pagination-btn {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    padding: 0.5rem 1rem;
    border: 1px solid #D1D5DB;
    border-radius: 0.375rem;
    background-color: white;
    font-weight: 500;
    color: #374151;
    transition: all 0.2s ease-in-out;
    white-space: nowrap;
}

.pagination-btn:not(:disabled):hover {
    background-color: #f9fafb;
    border-color: #9ca3af;
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

#pagination-controls {
    gap: 0.75rem;
}

#pagination-controls>.pagination-btn {
    flex-grow: 1;
    flex-basis: 0;
}

#pagination-controls>span {
    flex-basis: 100%;
    text-align: center;
    order: -1;
    margin-bottom: 0.5rem;
}

@media (min-width: 640px) {
    #pagination-controls {
        flex-wrap: nowrap;
    }

    #pagination-controls>.pagination-btn {
        flex-grow: 0;
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }

    #pagination-controls>span {
        flex-basis: auto;
        order: 0;
        margin-bottom: 0;
    }
}


/* --- Loader --- */
.loader {
    width: 32px;
    height: 32px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #f43f5e;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

/* --- Modal Styles --- */
.modal-content {
    animation: zoomIn 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

.time-range-btn {
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    font-weight: 500;
    color: #4b5563;
    background-color: #f3f4f6;
    transition: all 0.2s ease-in-out;
    touch-action: manipulation;
    /* Solves mobile tap delay */
}

.time-range-btn:hover {
    background-color: #e5e7eb;
    color: #1f2937;
}

.time-range-btn.active {
    background-color: #f43f5e;
    color: white;
    box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
}

@media (max-width: 767px) {
    #stock-chart-modal .modal-content {
        padding: 1rem;
        max-height: 90vh;
    }

    #stock-chart-modal #chart-stock-name {
        font-size: 1.125rem;
    }

    #stock-chart-modal #chart-time-range {
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    #stock-chart-modal .time-range-btn {
        padding: 0.375rem 0.75rem;
        font-size: 0.875rem;
        flex-grow: 1;
    }
}