/* Reset default styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f9;
    line-height: 1.6;
}

/* Define custom properties for column widths */
:root {
    --select-column-width: 30px; /* Width of Select column in stock2.php */
    --eccp-column-width: 60px; /* ECCP column width */
    /* Removed --product-code-column-width to allow dynamic width */
}

/* Wrapper styles */
.wrapper {
    max-width: 1200px;
    margin: 2% auto;
    padding: 20px;
    background-color: #ffffff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

/* Heading styles */
h1 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 2rem;
    color: #333;
    font-family: 'Garamond', serif;
}

h2 {
    font-size: 1.75rem;
    color: #333;
    font-family: 'Garamond', serif;
    margin-bottom: 1.5rem;
}

/* Button styles (shared) */
.btn {
    padding: 10px 20px;
    background-color: #007bff;
    color: #fff;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.1s;
    text-align: center;
}

.btn:hover {
    background-color: #0056b3;
    transform: scale(1.02);
}

.btn:active {
    transform: scale(0.98);
}

.btn-secondary {
    background-color: #6c757d;
}

.btn-secondary:hover {
    background-color: #5a6268;
}

.btn-uniform {
    width: 100%;
    height: 48px;
    padding: 10px;
    font-size: 1rem;
}

.btn-table {
    width: 100%;
    height: 40px;
    font-size: 0.9rem;
    padding: 5px;
}

.btn-delete {
    background-color: #dc3545;
}

.btn-delete:hover {
    background-color: #b02a37;
}

/* User info (index_admin.php) */
.user-info {
    font-size: 1.25rem;
    color: #555;
    margin: 0 20px 2rem;
}

/* Controls section (index.html) */
.controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 0 20px 2rem;
}

.controls p {
    font-size: 1.25rem;
    color: #555;
}

.lang-switch {
    padding: 10px 20px;
    background-color: #007bff;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.3s, transform 0.1s;
}

.lang-switch:hover {
    background-color: #0056b3;
    transform: scale(1.02);
}

.lang-switch:active {
    transform: scale(0.98);
}

/* Warehouse list styles (index.html) */
.warehouse-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    padding: 0 20px;
}

.warehouse-btn {
    width: 100%;
    height: 60px;
    padding: 15px;
    background-color: #f8f9fa;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1.25rem;
    font-family: 'Garamond', serif;
    color: #333;
    cursor: pointer;
    text-align: center;
    transition: background-color 0.3s, transform 0.1s;
}

.warehouse-btn:hover {
    background-color: #e9ecef;
    transform: scale(1.02);
}

.warehouse-btn:active {
    transform: scale(0.98);
}

/* Form styles (admin.php, stock.php, stock2.php, index_admin.php, stock_search.php) */
.stock-form, #formAdmin {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    padding: 0;
    width: 100%;
    margin: 0 0 1.5rem;
}

.form-inline {
    display: contents;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group-row {
    display: flex;
    flex-direction: row;
    gap: 0.5rem;
    flex-wrap: wrap;
    align-items: center;
}

.row-number-group {
    display: flex;
    flex-direction: row;
    gap: 0.5rem;
    flex: 1;
    min-width: 200px;
}

.form-group-left {
    align-items: flex-start;
}

.form-subgroup {
    flex: 1;
    min-width: 80px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.form-subgroup-item {
    flex: 1;
    min-width: 80px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.select-all-subgroup {
    flex: 0 1 auto;
    min-width: 120px;
    align-items: center;
    justify-content: center;
}

.form-group label {
    font-size: 1.1rem;
    color: #555;
}

.form-group input,
.form-group select {
    padding: 10px;
    font-size: 1rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    width: 100%;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: #007bff;
}

.hidden-label {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* Input field styles */
.input-field {
    padding: 8px;
    font-size: 1rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    width: 100%;
    max-width: 100px;
}

.input-field.row-select {
    max-width: 60px !important;
    width: 60px !important;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    padding: 8px 20px 8px 8px;
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="10" height="5" viewBox="0 0 10 5"><path fill="gray" d="M0 0h10L5 5z"/></svg>');
    background-repeat: no-repeat;
    background-position: right 8px center;
}

/* Style for select options */
.input-field.row-select option {
    font-size: 1rem;
    padding: 8px;
}

/* Row column in table */
.row-column {
    min-width: 80px;
}

/* Product code column to allow wrapping */
.stock-table td.product-code-column {
    min-width: 120px; /* Updated: reduced from 150px for desktop */
    white-space: normal;
}

/* Checkbox column styling for stock2.php */
.stock-table td.select-column {
    width: 30px;
    text-align: center;
    vertical-align: middle;
}

.stock-table input[type="checkbox"] {
    width: 16px;
    height: 16px;
    margin: 0 auto;
    cursor: pointer;
}

/* Error message (admin.php) */
.error-msg {
    color: #dc3545;
    font-size: 1rem;
    text-align: center;
}

/* Form actions (admin.php) */
.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Stock columns (stock_search.php) */
.stock-columns {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 2rem;
    padding: 0 20px;
    align-items: stretch;
}

/* Admin columns (index_admin.php) */
.admin-columns {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 2rem;
    padding: 0 20px;
    align-items: stretch;
}

.column {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 20px;
    background-color: #f8f9fa;
    border-radius: 8px;
    border: 1px solid #ddd;
    height: 100%;
    min-height: 500px;
    width: 100%;
}

.column-warehouse, .column-stock-search {
    margin-left: 0;
}

/* Stock actions (stock.php, stock2.php) */
.stock-actions {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    padding: 0 20px;
    flex-wrap: wrap;
}

/* Button group (index_admin.php, stock_search.php, stock2.php) */
.button-group {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    width: 100%;
}

/* Table styles (stock.php, stock2.php) */
.table-container {
    overflow-x: auto;
    padding: 0px;
    -webkit-overflow-scrolling: touch;
}

.stock-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 1.25rem; /* Desktop: unchanged */
    background-color: #fff;
}

.stock-table th,
.stock-table td {
    border: 1px solid #ddd;
    padding: 10px;
    text-align: center;
    vertical-align: middle;
}

.stock-table th {
    background-color: #f8f9fa;
    font-weight: bold;
    height: 60px;
}

.stock-table td {
    height: 50px;
}

.stock-table .bulk-row {
    background-color: #cccccc;
}

.stock-place.loading {
    color: gray;
    font-style: italic;
}

.stock-place.loading::before {
    content: '';
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 2px solid #ccc;
    border-top-color: #007bff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-right: 5px;
}

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

.select-all-label {
    font-size: 1rem;
    color: #555;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Fixed column styles (mobile only) */
@media (max-width: 768px) {
    .fixed-column {
        position: sticky;
        background-color: #fff;
        z-index: 2;
        box-shadow: 3px 0 6px rgba(0, 0, 0, 0.15);
    }

    /* stock.php fixed columns */
    .stock-table th.product-code-column,
    .stock-table td.product-code-column {
        left: 0;
        min-width: 80px; /* Updated: reduced from 100px */
        white-space: normal;
        font-size: 0.75rem;
        z-index: 2;
    }

    .stock-table th.eccp-column,
    .stock-table td.eccp-column {
        /* left will be set dynamically by JavaScript */
        width: 100px;
        min-width: 100px;
        max-width: 100px;
        white-space: nowrap;
        font-size: 0.75rem;
        z-index: 1;
    }

    /* stock2.php fixed columns */
    .stock2-table th.select-column,
    .stock2-table td.select-column {
        left: 0;
        width: var(--select-column-width);
        min-width: var(--select-column-width);
        max-width: var(--select-column-width);
        font-size: 0.75rem;
        z-index: 3;
    }

    .stock2-table th.product-code-column,
    .stock2-table td.product-code-column {
        left: var(--select-column-width);
        min-width: 80px; /* Updated: reduced from 100px */
        white-space: normal;
        font-size: 0.75rem;
        z-index: 2;
    }

    .stock2-table th.eccp-column,
    .stock2-table td.eccp-column {
        /* left will be set dynamically by JavaScript */
        width: 100px;
        min-width: 100px;
        max-width: 100px;
        white-space: nowrap;
        font-size: 0.75rem;
        z-index: 1;
    }

    /* Ensure table scrolls smoothly */
    .stock-table, .stock2-table {
        min-width: 600px; /* Reduced for compactness */
        font-size: 0.8rem;
    }

    .stock-table th {
        font-size: 0.75rem;
        height: 40px;
        padding: 6px;
    }

    .stock-table td {
        font-size: 0.8rem;
        height: 32px;
        padding: 6px;
    }

    /* Adjust input fields in fixed columns */
    .stock-table .input-field {
        font-size: 0.8rem;
        padding: 0px;
    }

    .stock-table input[type="checkbox"] {
        width: 12px;
        height: 12px;
    }
}

/* Responsive adjustments */
@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    .controls {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .warehouse-btn {
        font-size: 1.1rem;
        height: 50px;
    }

    .stock-columns, .admin-columns {
        grid-template-columns: 1fr;
    }

    .column-warehouse,
    .column-admin,
    .column-logout,
    .column-stock-search,
    .column-features,
    .column-back {
        width: 100%;
    }

    .column {
        min-height: auto;
    }

    .stock-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .input-field {
        font-size: 0.8rem;
        padding: 5px;
        max-width: 60px;
    }

    .input-field.row-select {
        max-width: 40px !important;
        width: 40px !important;
    }

    .input-field.row-select option {
        font-size: 0.8rem;
        padding: 5px;
    }

    .row-column {
        min-width: 60px;
    }

    .stock-table td.product-code-column {
        min-width: 80px; /* Already set above */
    }

    .stock-table td.select-column {
        width: 25px;
    }

    .stock-table input[type="checkbox"] {
        width: 12px;
        height: 12px;
    }

    .btn-table {
        height: 32px;
        font-size: 0.7rem;
    }

    .select-all-label {
        font-size: 0.8rem;
    }

    .form-group-row {
        flex-direction: column;
        align-items: stretch;
    }

    .row-number-group {
        flex-direction: row;
        gap: 0.5rem;
        width: 100%;
    }

    .form-subgroup {
        min-width: 0;
    }

    .select-all-subgroup {
        min-width: 0;
        justify-content: flex-start;
    }
}

@media (max-width: 480px) {
    .wrapper {
        margin: 5%;
        padding: 15px;
    }

    h1 {
        font-size: 1.75rem;
    }

    h2 {
        font-size: 1.25rem;
    }

    .controls p {
        font-size: 1rem;
    }

    .user-info {
        font-size: 1rem;
        margin: 0 15px 1.5rem;
    }

    .lang-switch {
        padding: 8px 16px;
        font-size: 0.9rem;
    }

    .warehouse-btn {
        font-size: 1rem;
        height: 48px;
    }

    .form-group label {
        font-size: 1rem;
    }

    .form-group input,
    .form-group select {
        font-size: 0.9rem;
        padding: 8px;
    }

    .btn, .lang-switch {
        padding: 8px 16px;
        font-size: 0.9rem;
    }

    .btn-uniform {
        height: 40px;
        font-size: 0.9rem;
    }

    .column {
        padding: 15px;
    }

    .stock-table {
        font-size: 0.7rem;
    }

    .stock-table th {
        font-size: 0.65rem;
        height: 36px;
        padding: 5px;
    }

    .stock-table td {
        font-size: 0.7rem;
        height: 28px;
        padding: 5px;
    }

    .input-field {
        font-size: 0.7rem;
        padding: 4px;
        max-width: 50px;
    }

    .input-field.row-select {
        max-width: 35px !important;
        width: 35px !important;
        font-size: 0.65rem !important;
        padding: 3px 15px 3px 5px !important;
    }

    .input-field.row-select option {
        font-size: 0.65rem;
        padding: 3px;
    }

    .row-column {
        min-width: 50px;
    }

    .stock-table td.product-code-column {
        min-width: 60px; /* Updated: reduced from 80px */
        font-size: 0.65rem;
        white-space: normal;
    }

    .stock-table th.product-code-column,
    .stock-table th.eccp-column,
    .stock2-table th.select-column,
    .stock2-table th.product-code-column,
    .stock2-table th.eccp-column {
        font-size: 0.65rem;
    }

    .stock-table td.eccp-column,
    .stock2-table td.select-column,
    .stock2-table td.product-code-column,
    .stock2-table td.eccp-column {
        font-size: 0.65rem;
    }

    .stock-table th.eccp-column,
    .stock-table td.eccp-column,
    .stock2-table th.eccp-column,
    .stock2-table td.eccp-column {
        min-width: 50px;
        width: 50px;
        max-width: 50px;
        font-size: 0.65rem;
    }

    .stock-table td.select-column {
        width: 20px;
    }

    .stock-table input[type="checkbox"] {
        width: 10px;
        height: 10px;
    }

    .btn-table {
        height: 28px;
        font-size: 0.65rem;
    }

    .select-all-label {
        font-size: 0.7rem;
    }
}

/* Styles for stock2.php form-actions-column and row-number-group */
.stock2-form .row-number-group {
    display: flex;
    flex-direction: row;
    gap: 1rem;
    width: 100%;
    align-items: flex-start;
}

.stock2-form .form-subgroup-item {
    flex: 1;
    min-width: 80px;
}

.stock2-form .form-actions-column {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    align-items: stretch;
    width: 100%;
}

.stock2-form .form-actions-column .btn-action {
    width: 100%;
    padding: 10px;
    font-size: 1.25rem;
    min-height: 44px; /* Minimum touch target size */
}

.stock2-form .form-actions-column .select-all-label {
    font-size: 1rem;
    display: block;
    align-items: center;
    gap: 0.5rem;
}

.stock2-form .form-actions-column input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
}

/* Mobile styles for stock2.php */
@media (max-width: 768px) {
    .stock2-form .form-group-row {
        flex-direction: column;
        gap: 10px;
        padding: 10px;
    }
    .stock2-form .row-number-group {
        flex-direction: row;
        gap: 20px;
        width: 100%;
    }
    .stock2-form .form-subgroup {
        width: 100%;
        align-items: stretch;
    }
    .stock2-form .form-subgroup-item {
        flex: 1;
    }
    .stock2-form .form-subgroup label {
        font-size: 1rem;
        margin-bottom: 0.25rem;
    }
    .stock2-form .input-field {
        font-size: 0.9rem;
        padding: 8px;
        max-width: 100%;
        min-height: 44px;
    }
    .stock2-form .input-field.row-select {
        max-width: 80px !important;
        width: 80px !important;
        font-size: 0.9rem !important;
        padding: 8px 20px 8px 8px !important;
        background-size: 12px;
    }
    .stock2-form .form-actions-column {
        gap: 8px;
    }
    .stock2-form .form-actions-column .btn-action {
        font-size: 18px;
        padding: 8px;
        min-height: 44px;
    }
    .stock2-form .form-actions-column .select-all-label {
        font-size: 18px;
    }
    .stock2-form .form-actions-column input[type="checkbox"] {
        width: 18px;
        height: 18px;
    }
}

@media (max-width: 480px) {
    .stock2-form .form-group-row {
        gap: 8px;
        padding: 8px;
    }
    .stock2-form .row-number-group {
        flex-direction: row;
        gap: 8px;
        width: 100%;
    }
    .stock2-form .form-subgroup-item {
        font-size: 0.875rem;
    }
    .stock2-form .form-subgroup label {
        font-size: 0.875rem;
    }
    .stock2-form .input-field {
        font-size: 0.75rem;
        padding: 6px;
        min-height: 40px;
    }
    .stock2-form .input-field.row-select {
        max-width: 60px !important;
        width: 60px !important;
        font-size: 14px !important;
        padding: 6px 15px 6px 6px !important;
    }
    .stock2-form .form-actions-column {
        gap: 8px;
    }
    .stock2-form .form-actions-column .btn-action {
        font-size: 16px;
        padding: 6px;
        min-height: 40px;
    }
    .stock2-form .form-actions-column .select-all-label {
        font-size: 14px;
    }
    .stock2-form .form-actions-column input[type="checkbox"] {
        width: 16px;
        height: 16px;
    }
}