/* =========================================================================
 * BẢNG STYLE TÙY CHỈNH CHO WEBSITE SƠN (ĐÃ LOẠI BỎ PHẦN GUTENBERG/STACKABLE)
 * =========================================================================
 * 1. Cài đặt toàn cục (Variables)
 * 2. Layout chung
 * 3. Trang Bảng Màu Tổng Hợp (archive-mau_sac.php)
 * 4. Trang Chi Tiết Màu Sắc (single-mau_sac.php)
 * 5. Modal Chọn Màu (trên trang sản phẩm)
 * 6. Responsive
 * =========================================================================
 */

/* === 1. BIẾN TOÀN CỤC === */
:root {
    --font-sans: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    --color-text: #4A4A4A;
    --color-heading: #181818;
    --color-accent: #005A9C;
    --color-accent-dark: #004475;
    --color-background: #FFFFFF;
    --color-surface: #F9FAFB;
    --color-selected-bg: #eaf5ff;
    --border-color: #E5E7EB;
    --shadow-sm: rgba(0, 0, 0, 0.05) 0px 1px 2px 0px;
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* === 2. LAYOUT CHUNG === */
body {
    font-family: var(--font-sans);
}

.post-type-archive-mau_sac,
.single-mau_sac {
    background-color: var(--color-background);
}

.page-header,
.single-mau_sac .entry-header {
    text-align: center;
    margin-bottom: 2em;
}

.page-header .page-title,
.single-mau_sac .entry-title {
    font-size: 3em;
    color: var(--color-heading);
    margin-bottom: 0.25em;
}

.single-mau_sac .entry-content h2 {
    text-align: center;
    font-size: 2.2em;
    color: var(--color-heading);
    margin: 3em 0 1.5em 0;
    font-weight: 600;
}

/* === 3. ARCHIVE: BẢNG MÀU === */
.post-type-archive-mau_sac .ct-container {
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1em;
    padding-right: 1em;
    box-sizing: border-box;
}

.post-type-archive-mau_sac .page-header {
    text-align: center;
    margin-bottom: 2em;
}

.post-type-archive-mau_sac .page-title {
    font-size: 2.5em;
    color: var(--color-heading, #181818);
    font-weight: 700;
    margin-bottom: 0.2em;
}

.post-type-archive-mau_sac .page-desc {
    font-size: 1.2em;
    color: #555;
}

.color-grid-archive {
    display: grid;
    gap: 24px;
    grid-template-columns: repeat(4, 1fr);
    margin-bottom: 3em;
}

.color-card {
    display: block;
    text-decoration: none;
    border: 1px solid var(--border-color, #E5E7EB);
    border-radius: 12px;
    overflow: hidden;
    background: #fff;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.06);
    transition: transform 0.2s, box-shadow 0.2s;
}

.color-card:hover,
.color-card:focus-visible {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.10);
}

.color-card-image {
    width: 100%;
    background-color: #f9fafb;
}

.color-card-image img,
.color-card-image .placeholder-image {
    width: 100%;
    height: auto;
    object-fit: cover;
    display: block;
    border-bottom: 1px solid #eee;
}

.color-card-info {
    padding: 1em;
    text-align: center;
}

.color-card-info .color-name {
    font-size: 1.1em;
    font-weight: 600;
    color: var(--color-heading, #181818);
    margin: 0 0 0.25em 0;
}

.color-card-info .color-code {
    font-size: 0.93em;
    font-family: var(--font-mono, monospace);
    color: var(--color-text, #4A4A4A);
    background-color: #f6f6fa;
    padding: 0.2em 0.7em;
    border-radius: 8px;
    display: inline-block;
}

.placeholder-image {
    background-color: #eee;
    width: 100%;
    height: 100%;
    border-radius: 0;
}

.post-type-archive-mau_sac .pagination,
.post-type-archive-mau_sac .nav-links,
.post-type-archive-mau_sac .page-numbers {
    margin-top: 2em;
    text-align: center;
}

.page-numbers {
    display: inline-block;
    padding: 0.5em 1em;
    margin: 0 0.2em;
    border-radius: 6px;
    background: #f3f6f9;
    color: #666;
    text-decoration: none;
    transition: background 0.15s;
}

.page-numbers.current,
.page-numbers:hover {
    background: var(--color-accent, #005A9C);
    color: #fff;
}

/* === 4. SINGLE: CHI TIẾT MÀU SẮC === */
.single-mau_sac .ct-container {
    margin-left: auto;
    margin-right: auto;
    padding-left: 1em;
    padding-right: 1em;
    box-sizing: border-box;
}

.single-mau_sac .entry-title {
    font-size: 2em;
    color: var(--color-heading, #181818);
    font-weight: 700;
    margin-bottom: 0.5em;
}

.single-mau_sac .entry-content {
    font-size: 1em;
    line-height: 1.7;
}

.single-mau_sac .entry-content h2 {
    font-size: 1.3em;
    color: var(--color-heading, #181818);
    font-weight: 600;
    margin: 2em 0 1em 0;
    text-align: left;
}

.inspiration-block {
    margin-bottom: 3em;
}

.inspiration-gallery {
    display: grid;
    gap: 24px;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

.inspiration-gallery img {
    width: 100%;
    border-radius: var(--border-radius-md, 12px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.product-showcase-block {
    margin-top: 3em;
}

.product-showcase-list {
    display: grid;
    gap: 20px;
    grid-template-columns: repeat(4, 1fr);
}

.product-showcase-item {
    background: #fff;
    border: 1px solid var(--border-color, #E5E7EB);
    border-radius: 12px;
    text-align: center;
    padding: 1.2em;
    display: flex;
    flex-direction: column;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.product-showcase-item h3 {
    color: var(--color-heading, #181818);
    font-size: 1.1em;
    font-weight: 500;
    margin: 0 0 0.25em 0;
}

.product-showcase-item p {
    color: var(--color-text, #4A4A4A);
    margin: 0 0 1em 0;
}

.product-showcase-item img {
    width: 100%;
    height: auto;
    object-fit: cover;
    margin-bottom: 1em;
    border-radius: 8px;
}

.product-showcase-item .button {
    background: var(--color-accent, #005A9C);
    color: #fff;
    padding: 0.4em 1.1em;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    border: none;
    margin: auto auto 0 auto;
    transition: background 0.2s;
}

.product-showcase-item .button:hover {
    background: var(--color-accent-dark, #004475);
}

/* Modal chọn màu */
.color-modal-header {
    text-align: center;
    margin-bottom: 24px;
}

.color-modal-header h2 {
    margin-top: 0;
    font-size: 24px;
    color: var(--color-heading);
}

.color-modal-header p {
    font-size: 16px;
    color: var(--color-text);
    margin-bottom: 0;
}

.color-modal-grid {
    display: grid;
    gap: 16px;
    grid-template-columns: repeat(3, 1fr);
}

.color-modal-item {
    cursor: pointer;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    overflow: hidden;
    transition: var(--transition);
    background: var(--color-background);
}

.color-modal-item:hover {
    transform: scale(1.08);
    border-color: var(--color-accent);
    box-shadow: var(--shadow-md);
    z-index: 10;
}

.color-modal-image {
    height: 120px;
    width: 100%;
    background-color: var(--color-surface);
}

.color-modal-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.color-modal-info {
    padding: 12px;
    text-align: center;
    background-color: var(--color-background);
}

.color-modal-info .color-code {
    font-weight: 600;
    font-size: 14px;
    color: var(--color-heading);
    font-family: var(--font-mono);
}

.color-modal-item.selected {
    border-color: var(--color-accent);
    background-color: var(--color-selected-bg);
    transform: scale(1.08);
    box-shadow: var(--shadow-md);
}

.color-modal-item.selected .color-code {
    font-weight: bold;
    color: var(--color-accent);
}

/* === 6. RESPONSIVE === */
@media (max-width: 1200px) {
    .color-grid-archive {
        grid-template-columns: repeat(4, 1fr);
    }

    .product-showcase-list {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 1024px) {
    .color-grid-archive {
        grid-template-columns: repeat(3, 1fr);
    }

    .product-showcase-list {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .color-grid-archive {
        grid-template-columns: repeat(3, 1fr);
    }

    .product-showcase-list {
        grid-template-columns: repeat(2, 1fr);
    }

    .inspiration-gallery {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 599px) {

    .color-grid-archive,
    .product-showcase-list {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 768px) {
    .color-modal-grid {
        grid-template-columns: repeat(5, 1fr);
    }
}

/* --- CSS CHO THÔNG BÁO CHỌN MÀU --- */
.color-selection-toast {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background-color: #2c3e50;
    /* Màu nền tối */
    color: #fff;
    padding: 12px 24px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    z-index: 99999;
    font-size: 16px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, transform 0.3s ease, bottom 0.3s ease;
}

.color-selection-toast.show {
    opacity: 1;
    visibility: visible;
    bottom: 30px;
    /* Hiệu ứng trượt lên */
}