/* ===================================
   CHÍNH SÁCH PAGE STYLES
   Prefix: chinh-sach-
   Theme Integration: Full CSS Variables
   =================================== */

/* 1. CSS Variables Import and Page-specific Variables */
:root {
    /* Theme variables are loaded from theme_settings.php */
    /* Page-specific spacing and sizing */
    --chinh-sach-sidebar-width: 320px;
    --chinh-sach-content-padding: 2rem;
    --chinh-sach-section-spacing: 3rem;
    --chinh-sach-banner-height: 400px;
    --chinh-sach-mobile-breakpoint: 768px;
}

/* 2. Page Reset and Base Styles */
.chinh-sach-main {
    background-color: var(--background-color);
    min-height: calc(100vh - 80px);
    padding-top: 2rem;
    padding-bottom: 2rem;
}

.chinh-sach-container {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: var(--chinh-sach-sidebar-width) 1fr;
    gap: 2rem;
    padding: 0 1rem;
}

/* 2.1. Breadcrumb Navigation */
.chinh-sach-breadcrumb {
    background-color: var(--background-color);
    padding: calc(var(--font-size-base) / 2) 0;
    margin-bottom: calc(var(--font-size-base) + 4px);
}

.chinh-sach-breadcrumb .chinh-sach-container {
    display: block;
    grid-template-columns: none;
    gap: 0;
}

.chinh-sach-breadcrumb-list {
    display: flex;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
    font-size: calc(var(--font-size-base) - 2px);
    font-family: var(--font-family);
}

.chinh-sach-breadcrumb-item {
    display: flex;
    align-items: center;
}

.chinh-sach-breadcrumb-link {
    display: flex;
    align-items: center;
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-speed) ease;
    font-weight: 400;
}

.chinh-sach-breadcrumb-link:hover {
    color: var(--secondary-color);
    text-decoration: underline;
}

.chinh-sach-breadcrumb-icon {
    margin-right: calc(var(--font-size-base) / 4);
    font-size: calc(var(--font-size-base) - 2px);
}

.chinh-sach-breadcrumb-separator {
    margin: 0 calc(var(--font-size-base) / 2);
    color: var(--primary-color);
    font-size: calc(var(--font-size-base) - 4px);
    opacity: 0.6;
}

.chinh-sach-breadcrumb-current {
    color: var(--secondary-color);
}

.chinh-sach-breadcrumb-current-text {
    font-weight: 600;
    color: var(--secondary-color);
}

/* Mobile breadcrumb adjustments */
@media (max-width: 768px) {
    .chinh-sach-breadcrumb {
        padding: calc(var(--font-size-base) / 3) 0;
        margin-bottom: calc(var(--font-size-base) / 2);
    }
    
    .chinh-sach-breadcrumb-list {
        font-size: calc(var(--font-size-base) - 3px);
    }
    
    .chinh-sach-breadcrumb-separator {
        margin: 0 calc(var(--font-size-base) / 3);
    }
    
    .chinh-sach-breadcrumb-icon {
        margin-right: calc(var(--font-size-base) / 6);
    }
}

/* 3. Banner Section */
.chinh-sach-banner {
    position: relative;
    height: var(--chinh-sach-banner-height);
    overflow: hidden;
    margin-bottom: 2rem;
}

.chinh-sach-banner-image {
    width: 100%;
    height: 100%;
    position: relative;
}

.chinh-sach-banner-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.chinh-sach-banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(var(--primary-color-rgb), 0.8) 0%, 
        rgba(var(--secondary-color-rgb), 0.6) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.chinh-sach-banner-content {
    text-align: center;
    color: #ffffff;
    max-width: 800px;
    padding: 0 2rem;
}

.chinh-sach-banner-title {
    font-family: var(--heading-font);
    font-size: calc(var(--font-size-base) + 24px);
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.chinh-sach-banner-subtitle {
    font-size: calc(var(--font-size-base) + 4px);
    font-weight: 400;
    opacity: 0.95;
    line-height: 1.6;
}

/* 4. Sidebar Navigation */
.chinh-sach-sidebar {
    background: #ffffff;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    height: fit-content;
    position: sticky;
    top: 100px;
    border: 2px solid var(--primary-color);
}

.chinh-sach-sidebar-header {
    background: var(--primary-color);
    color: #ffffff;
    padding: 1.5rem;
    border-radius: calc(var(--border-radius) - 2px) calc(var(--border-radius) - 2px) 0 0;
}

.chinh-sach-sidebar-title {
    font-family: var(--heading-font);
    font-size: calc(var(--font-size-base) + 4px);
    font-weight: 600;
    margin: 0;
    color: #ffffff;
}

.chinh-sach-nav {
    padding: 0;
}

.chinh-sach-nav-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.chinh-sach-nav-item {
    border-bottom: 1px solid rgba(var(--primary-color-rgb), 0.1);
}

.chinh-sach-nav-item:last-child {
    border-bottom: none;
}

.chinh-sach-nav-link {
    display: flex;
    align-items: center;
    padding: 1rem 1.5rem;
    color: var(--secondary-color);
    text-decoration: none;
    font-size: var(--font-size-base);
    font-weight: 500;
    transition: all var(--transition-speed) ease;
    border-left: 4px solid transparent;
}

.chinh-sach-nav-link:hover {
    background-color: rgba(var(--primary-color-rgb), 0.05);
    color: var(--primary-color);
    border-left-color: var(--primary-color);
}

.chinh-sach-nav-link.chinh-sach-nav-active {
    background-color: rgba(var(--primary-color-rgb), 0.1);
    color: var(--primary-color);
    border-left-color: var(--primary-color);
    font-weight: 600;
}

.chinh-sach-nav-icon {
    margin-right: 0.75rem;
    font-size: calc(var(--font-size-base) - 2px);
    transition: transform var(--transition-speed) ease;
}

.chinh-sach-nav-link:hover .chinh-sach-nav-icon,
.chinh-sach-nav-link.chinh-sach-nav-active .chinh-sach-nav-icon {
    transform: translateX(4px);
}

.chinh-sach-nav-empty {
    display: block;
    padding: 2rem 1.5rem;
    color: rgba(var(--secondary-color-rgb), 0.6);
    font-style: italic;
    text-align: center;
}

/* Subsections navigation */
.chinh-sach-nav-subsections {
    list-style: none;
    margin: 0;
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    background-color: rgba(var(--primary-color-rgb), 0.02);
}

.chinh-sach-nav-subsections.chinh-sach-nav-subsections-open {
    max-height: 500px;
}

.chinh-sach-nav-subitem {
    margin: 0;
    border-bottom: 1px solid rgba(var(--primary-color-rgb), 0.05);
}

.chinh-sach-nav-subitem:last-child {
    border-bottom: none;
}

.chinh-sach-nav-sublink {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem 0.75rem 3rem;
    color: rgba(var(--secondary-color-rgb), 0.8);
    text-decoration: none;
    transition: all var(--transition-speed) ease;
    font-size: calc(var(--font-size-base) - 2px);
    border-left: 3px solid transparent;
}

.chinh-sach-nav-sublink:hover {
    background-color: rgba(var(--primary-color-rgb), 0.05);
    color: var(--primary-color);
    border-left-color: var(--primary-color);
}

.chinh-sach-nav-sublink.chinh-sach-nav-active {
    background-color: rgba(var(--primary-color-rgb), 0.08);
    color: var(--primary-color);
    border-left-color: var(--primary-color);
    font-weight: 500;
}

.chinh-sach-nav-subicon {
    margin-right: 0.5rem;
    font-size: calc(var(--font-size-base) - 4px);
    transition: transform var(--transition-speed) ease;
}

.chinh-sach-nav-sublink:hover .chinh-sach-nav-subicon {
    transform: translateX(2px);
}

/* 5. Content Area */
.chinh-sach-content {
    background: #ffffff;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    border: 1px solid rgba(var(--primary-color-rgb), 0.2);
}

.chinh-sach-section {
    padding: var(--chinh-sach-content-padding);
    border-bottom: 2px solid rgba(var(--primary-color-rgb), 0.1);
}

.chinh-sach-section:last-child {
    border-bottom: none;
}

.chinh-sach-section-header {
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--primary-color);
}

.chinh-sach-section-title {
    font-family: var(--heading-font);
    font-size: calc(var(--font-size-base) + 12px);
    font-weight: 700;
    color: var(--primary-color);
    margin: 0 0 0.5rem 0;
    line-height: 1.3;
}

.chinh-sach-section-date {
    font-size: calc(var(--font-size-base) - 2px);
    color: rgba(var(--secondary-color-rgb), 0.7);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.chinh-sach-section-date i {
    color: var(--primary-color);
}

.chinh-sach-section-content {
    color: var(--secondary-color);
    font-size: var(--font-size-base);
    line-height: 1.7;
}

/* File sections and subsections */


.chinh-sach-subsections {
    margin-top: 1.5rem;
}

.chinh-sach-subsection {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background-color: rgba(var(--primary-color-rgb), 0.02);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-color);
}

.chinh-sach-subsection:last-child {
    margin-bottom: 0;
}

.chinh-sach-subsection-title {
    font-family: var(--heading-font);
    font-size: calc(var(--font-size-base) + 6px);
    font-weight: 600;
    color: var(--primary-color);
    margin: 0 0 1rem 0;
    line-height: 1.4;
}

.chinh-sach-subsection-content {
    color: var(--secondary-color);
    font-size: var(--font-size-base);
    line-height: 1.7;
}

.chinh-sach-section-content p {
    margin-bottom: 1.5rem;
}

.chinh-sach-section-content p:last-child {
    margin-bottom: 0;
}

.chinh-sach-no-content {
    color: rgba(var(--secondary-color-rgb), 0.6);
    font-style: italic;
    text-align: center;
    padding: 2rem;
}

/* 6. Empty State */
.chinh-sach-empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--secondary-color);
}

.chinh-sach-empty-icon {
    font-size: calc(var(--font-size-base) + 32px);
    color: rgba(var(--primary-color-rgb), 0.3);
    margin-bottom: 2rem;
}

.chinh-sach-empty-title {
    font-family: var(--heading-font);
    font-size: calc(var(--font-size-base) + 8px);
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.chinh-sach-empty-description {
    font-size: var(--font-size-base);
    color: rgba(var(--secondary-color-rgb), 0.7);
    max-width: 500px;
    margin: 0 auto;
}

/* 7. Mobile Toggle Button */
.chinh-sach-mobile-toggle {
    display: none;
    background: var(--primary-color);
    color: #ffffff;
    border: none;
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    margin-bottom: 1rem;
    align-items: center;
    gap: 0.5rem;
    transition: all var(--transition-speed) ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.chinh-sach-mobile-toggle:hover {
    background: var(--secondary-color);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.chinh-sach-mobile-toggle i {
    font-size: calc(var(--font-size-base) + 2px);
}

/* 8. Sidebar Overlay for Mobile */
.chinh-sach-sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    transition: opacity var(--transition-speed) ease;
}

.chinh-sach-sidebar-overlay.chinh-sach-overlay-active {
    opacity: 1;
}

/* 9. No Scroll Class for Mobile */
.chinh-sach-no-scroll {
    overflow: hidden;
}

/* 10. Mobile Responsiveness */
@media (max-width: 768px) {
    .chinh-sach-main {
        padding-top: 1rem;
        padding-bottom: 1rem;
    }
    
    .chinh-sach-container {
        grid-template-columns: 1fr;
        gap: 0;
        padding: 0 1rem;
    }
    
    .chinh-sach-banner {
        height: 250px;
        margin-bottom: 1rem;
    }
    
    .chinh-sach-banner-title {
        font-size: calc(var(--font-size-base) + 12px);
    }
    
    .chinh-sach-banner-subtitle {
        font-size: calc(var(--font-size-base) + 2px);
    }
    
    .chinh-sach-mobile-toggle {
        display: flex;
    }
    
    .chinh-sach-sidebar {
        position: fixed;
        top: 0;
        left: -100%;
        width: 85%;
        max-width: 320px;
        height: 100vh;
        z-index: 1000;
        transition: left var(--transition-speed) ease;
        overflow-y: auto;
        border-radius: 0;
    }
    
    .chinh-sach-sidebar.chinh-sach-sidebar-open {
        left: 0;
    }
    
    .chinh-sach-sidebar-overlay {
        display: block;
    }
    
    .chinh-sach-content {
        margin-top: 0;
    }
    
    .chinh-sach-section {
        padding: 1.5rem;
    }
    
    .chinh-sach-section-title {
        font-size: calc(var(--font-size-base) + 8px);
    }
    
    .chinh-sach-empty-state {
        padding: 3rem 1rem;
    }
    
    .chinh-sach-empty-icon {
        font-size: calc(var(--font-size-base) + 24px);
    }
}

/* 11. Tablet Responsiveness */
@media (min-width: 769px) and (max-width: 1024px) {
    .chinh-sach-container {
        grid-template-columns: 280px 1fr;
        gap: 1.5rem;
    }
    
    :root {
        --chinh-sach-sidebar-width: 280px;
        --chinh-sach-content-padding: 1.5rem;
    }
    
    .chinh-sach-banner {
        height: 300px;
    }
    
    .chinh-sach-banner-title {
        font-size: calc(var(--font-size-base) + 16px);
    }
}

/* 12. Large Desktop Responsiveness */
@media (min-width: 1400px) {
    .chinh-sach-container {
        grid-template-columns: 350px 1fr;
        gap: 3rem;
    }
    
    :root {
        --chinh-sach-sidebar-width: 350px;
        --chinh-sach-content-padding: 2.5rem;
    }
    
    .chinh-sach-banner {
        height: 450px;
    }
    
    .chinh-sach-banner-title {
        font-size: calc(var(--font-size-base) + 28px);
    }
}

/* 13. Print Styles */
@media print {
    .chinh-sach-sidebar,
    .chinh-sach-mobile-toggle,
    .chinh-sach-sidebar-overlay {
        display: none !important;
    }
    
    .chinh-sach-container {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    .chinh-sach-content {
        box-shadow: none;
        border: none;
    }
    
    .chinh-sach-section {
        page-break-inside: avoid;
        border-bottom: 1px solid #ccc;
    }
    
    .chinh-sach-banner {
        height: auto;
        page-break-after: always;
    }
}

/* 14. Accessibility Enhancements */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .chinh-sach-nav-link:hover .chinh-sach-nav-icon,
    .chinh-sach-nav-link.chinh-sach-nav-active .chinh-sach-nav-icon {
        transform: none;
    }
}

/* Focus styles for keyboard navigation */
.chinh-sach-nav-link:focus,
.chinh-sach-mobile-toggle:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Mobile Body Scroll Lock */
.chinh-sach-no-scroll {
    overflow: hidden !important;
    position: fixed !important;
    width: 100% !important;
}

/* Overlay Active State */
.chinh-sach-overlay-active {
    display: block !important;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .chinh-sach-sidebar {
        border-width: 3px;
    }
    
    .chinh-sach-nav-link {
        border-left-width: 6px;
    }
    
    .chinh-sach-section-header {
        border-bottom-width: 3px;
    }
}