/* CSS Tối Giản Cao Cấp - Tam-An Sales Portal */
:root {
    --bg-page: #f8fafc;
    --bg-card: #ffffff;
    --border-color: #e2e8f0;
    --text-primary: #0f172a;
    --text-secondary: #334155;
    --text-muted: #64748b;
    --color-accent: #0d6efd; /* Màu xanh dương phẳng của bootstrap/trang gốc */
    --color-accent-hover: #0b5ed7;
    --color-warning: #d97706;
    --color-success: #16a34a;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-page);
    color: var(--text-primary);
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 0.9rem;
    line-height: 1.6;
    padding: 2rem 1.5rem;
}

/* Cấu hình full-width (trải rộng 100%) giống trang gốc */
.container {
    width: 100%;
    max-width: 100%;
    margin: 0 auto;
}

/* Page Header */
.page-header-container {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 2rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--border-color);
}

.page-title {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    margin-bottom: 0.25rem;
}

.page-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.header-meta {
    font-size: 0.85rem;
    color: var(--text-secondary);
    background-color: #f1f5f9;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.header-meta strong {
    color: var(--color-warning);
    font-weight: 600;
}

/* Card / Panel */
.card-flat {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 1.5rem;
    overflow: hidden;
}

.card-flat-body {
    padding: 1.25rem 1.5rem;
}

/* Form Filter */
.filter-form {
    display: flex;
    gap: 1rem;
    align-items: flex-end;
}

.form-group-custom {
    flex: 1;
}

.form-label-custom {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.form-input-custom {
    width: 100%;
    background-color: #ffffff;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.55rem 0.75rem;
    border-radius: 6px;
    font-size: 0.9rem;
    outline: none;
    transition: all 0.2s;
}

.form-input-custom:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(13, 110, 253, 0.15);
}

/* Buttons */
.btn-custom {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 600;
    padding: 0.55rem 1.25rem;
    border-radius: 6px;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s;
    border: 1px solid transparent;
}

.btn-primary-custom {
    background-color: var(--color-accent);
    color: #ffffff;
}

.btn-primary-custom:hover {
    background-color: var(--color-accent-hover);
}

.btn-outline-custom {
    background-color: transparent;
    border-color: var(--border-color);
    color: var(--text-secondary);
}

.btn-outline-custom:hover {
    background-color: #f8fafc;
    border-color: var(--text-secondary);
    color: var(--text-primary);
}

/* Data Table */
.table-responsive {
    width: 100%;
    overflow-x: auto;
}

.table-flat {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.table-flat th {
    background-color: #f8fafc;
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 1rem 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

.table-flat td {
    padding: 1rem 0.75rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
    vertical-align: middle;
    word-break: break-word;
}

.painting-name-cell {
    font-weight: 600;
    color: var(--text-primary);
    white-space: normal;
    word-break: keep-all;
    overflow-wrap: break-word;
    line-height: 1.4;
}

.table-flat tbody tr:last-child td {
    border-bottom: none;
}

.table-flat tbody tr:hover td {
    background-color: #f8fafc;
}

/* Image Container & Fallback Placeholder */
.image-container {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    overflow: hidden;
    background-color: #f8fafc;
    position: relative;
}

.image-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.img-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #f1f5f9;
    color: #94a3b8;
    font-size: 1.25rem;
}

/* Blue SKU Code Badge - Giống trang gốc */
.badge-sku {
    display: inline-block;
    color: #ffffff;
    background-color: var(--color-accent);
    font-size: 0.8rem;
    font-weight: 500;
    padding: 0.3rem 0.75rem;
    border-radius: 4px;
    white-space: nowrap;
}

/* Action Button Outline - Giống nút Xem của trang gốc */
.btn-action-outline {
    background-color: #ffffff;
    border: 1px solid #ced4da;
    color: #495057;
    font-size: 0.75rem;
    font-weight: 500;
    padding: 0.35rem 0.7rem;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.15s ease-in-out;
}

.btn-action-outline:hover {
    background-color: #f8fafc;
    border-color: #adb5bd;
    color: #212529;
}

/* Pagination */
.pagination-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1.5rem;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.pagination-links {
    display: flex;
    gap: 0.25rem;
    align-items: center;
}

.page-item-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: #ffffff;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    min-width: 32px;
    height: 32px;
    padding: 0 0.5rem;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s;
}

.page-item-link:hover:not(.active-page) {
    border-color: var(--text-secondary);
    color: var(--text-primary);
}

.page-item-link.active-page {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    color: #ffffff;
    font-weight: 600;
}

/* Ellipsis page item style */
.page-item-ellipsis {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 32px;
    height: 32px;
    color: var(--text-muted);
    font-weight: 500;
}

/* Modal Calculator */
.modal-overlay {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 23, 42, 0.4);
    backdrop-filter: blur(4px);
    align-items: center;
    justify-content: center;
}

.modal-overlay.show {
    display: flex;
}

.modal-box {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    width: 90%;
    max-width: 440px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    animation: modalSlideUp 0.2s ease-out;
}

@keyframes modalSlideUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header-flat {
    background-color: #f8fafc;
    padding: 1.25rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-title-flat {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
}

.modal-close-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    line-height: 1;
}

.modal-close-btn:hover {
    color: var(--text-primary);
}

.modal-body-flat {
    padding: 1.25rem;
}

/* Info painting inside modal */
.modal-painting-info {
    background-color: #f8fafc;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.85rem 1rem;
    margin-bottom: 1.25rem;
}

.info-item {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    margin-bottom: 0.4rem;
}

.info-item:last-child {
    margin-bottom: 0;
}

.info-item-label {
    color: var(--text-muted);
}

.info-item-value {
    font-weight: 600;
    color: var(--text-primary);
}

/* Input Fields group inside modal */
.calc-field-group {
    margin-bottom: 1rem;
}

.calc-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.calc-unit-label {
    position: absolute;
    right: 1rem;
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 500;
    pointer-events: none;
}

.calc-input-field {
    width: 100%;
    background-color: #ffffff;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.65rem 3rem 0.65rem 0.75rem;
    border-radius: 6px;
    font-size: 1.1rem;
    font-weight: 600;
    outline: none;
    transition: all 0.2s;
}

.calc-input-field:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(13, 110, 253, 0.15);
}

.modal-footer-flat {
    padding: 1rem 1.25rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
}