/*
Theme Name: NavyCore
Author: Hayyaku
Description: High-performance, lightweight, SEO-optimized WordPress theme with a minimalist navy blue design and built-in dark mode.
Version: 1.0.4
Requires at least: 5.8
Tested up to: 6.4
Requires PHP: 7.4
Text Domain: navycore
*/

:root {
    --bg-color: #f0f2f5;
    --card-bg: #ffffff;
    --text-color: #333333;
    --text-light: #666666;
    --navy-accent: #152b46;
    --navy-hover: #1e3d63;
    --border-color: #eaeaea;
    --header-bg: #152b46;
    --header-text: #ffffff;
    --font-system: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --spacing-xl: 4rem;
    --container-width: 1200px;
    --border-radius: 8px;
    --shadow-soft: 0 2px 10px rgba(0,0,0,0.05);
}

[data-theme="dark"] {
    --bg-color: #121212;
    --card-bg: #1e1e1e;
    --text-color: #e4e4e4;
    --text-light: #a0a0a0;
    --navy-accent: #4da6ff;
    --navy-hover: #80bfff;
    --border-color: #2c2c2c;
    --header-bg: #0b1725;
    --header-text: #ffffff;
    --shadow-soft: 0 2px 10px rgba(0,0,0,0.3);
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    font-size: 100%;
    scroll-behavior: smooth;
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-system);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
    -webkit-font-smoothing: antialiased;
}

img,
video,
iframe {
    max-width: 100% !important;
    height: auto !important;
    display: block;
    box-sizing: border-box;
}

a {
    color: var(--navy-accent);
    text-decoration: none;
    transition: color 0.2s ease;
}

[data-theme="dark"] a {
    color: #4da6ff; 
}

a:hover {
    color: var(--navy-hover);
    text-decoration: underline;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    font-weight: 700;
    line-height: 1.25;
    color: var(--text-color);
}

h1 {
    font-size: 2.2rem;
    margin-top: 0;
}

h2 {
    font-size: 1.5rem;
}

h3 {
    font-size: 1.35rem;
}

p {
    margin-bottom: var(--spacing-md);
}

.site-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.site-header {
    background-color: var(--header-bg);
    border-bottom: none;
    position: static; /* Force override completely */
}

.site-branding {
    padding: var(--spacing-lg) 0 var(--spacing-md) 0;
    text-align: center;
    width: 100%;
    display: flex;
    justify-content: center;
}

.site-title {
    margin: 0;
    font-size: 2rem;
    text-align: center;
}

.site-title a {
    color: var(--header-text);
    text-decoration: none;
}

.site-navigation-wrapper {
    background-color: var(--header-bg);
    position: sticky;
    top: 0;
    z-index: 999;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    border-top: 1px solid rgba(255,255,255,0.05); /* subtle divider */
}

.header-inner {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.primary-menu {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xl); /* Adjusted for better spacing */
}

.primary-menu a {
    color: var(--header-text);
    font-weight: 500;
    opacity: 0.9;
    font-size: 1.05rem;
}

.primary-menu a:hover {
    color: #ffffff;
    opacity: 1;
}

.dark-mode-toggle {
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    color: var(--header-text);
    border-radius: var(--border-radius);
    padding: 0.4rem 0.8rem;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    transition: background-color 0.2s, color 0.2s, border-color 0.2s;
    white-space: nowrap;
}

.dark-mode-toggle:hover {
    background-color: rgba(255,255,255,0.2);
}

.mobile-menu-toggle {
    display: none !important; /* Force hide on desktop */
    background: transparent;
    border: 1px solid rgba(255,255,255,0.2);
    color: var(--header-text);
    padding: 0.4rem 0.8rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
}

.mobile-menu-toggle:hover {
    background-color: rgba(255,255,255,0.2);
}

.site-main {
    flex-grow: 1;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-md);
    width: 100%;
}

.content-area {
    display: flex;
    flex-wrap: nowrap; /* Prevent dropping to bottom */
    gap: var(--spacing-xl);
    width: 100%;
    align-items: flex-start;
}

.site-main-content {
    flex: 1 1 0; /* Important: allow shrinking to avoid pushing sidebar */
    min-width: 0;
    overflow: hidden; /* Clear floating internal elements if any */
}

.sidebar-area {
    flex: 0 0 320px; /* Fixed width */
    width: 320px;
    position: sticky;
    top: 80px; /* Needs a top value to actually stick */
}

.site-footer {
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-lg) 0;
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-light);
    margin-top: auto;
    background-color: var(--card-bg);
}

.post-card {
    background-color: var(--card-bg);
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-soft);
    border: 1px solid var(--border-color);
}

.post-card.layout-flex {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.post-card.layout-flex .post-card-thumbnail {
    flex: 0 0 35%;
    margin-bottom: 0;
    border-radius: var(--border-radius);
    overflow: hidden;
}

.post-card.layout-flex .post-card-thumbnail img {
    width: 100%;
    height: 100%;
    aspect-ratio: 16/9;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.post-card.layout-flex .post-card-thumbnail:hover img {
    transform: scale(1.05);
}

.post-card.layout-flex .post-card-body {
    flex: 1 1 auto;
}

.post-title {
    margin-top: 0;
    margin-bottom: var(--spacing-xs);
}

.post-title a {
    color: var(--text-color);
}

.post-title a:hover {
    color: var(--navy-accent);
    text-decoration: underline;
}

.post-meta {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
}

.post-meta a {
    color: var(--text-light);
}

.post-meta a:hover {
    color: var(--navy-accent);
}

.post-excerpt {
    color: var(--text-color);
}

/* Single Article */
.single-article {
    background-color: var(--card-bg);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-soft);
    border: 1px solid var(--border-color);
}

.single-article .single-header {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.single-article .post-thumbnail img {
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-lg);
    width: 100%;
}

.post-content {
    font-size: 1.1rem;
}

.post-content img {
    border-radius: var(--border-radius);
    margin: var(--spacing-lg) 0;
    max-width: 100% !important;
    height: auto !important;
    box-sizing: border-box;
}

figure, figure.wp-block-image, .wp-caption {
    max-width: 100%;
    margin-left: auto;
    margin-right: auto;
}

.post-content pre {
    background: var(--border-color);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    overflow-x: auto;
    font-size: 0.95rem;
}

/* Sidebar Widgets */
.custom-widget {
    background-color: var(--card-bg);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-soft);
    border: 1px solid var(--border-color);
    margin-bottom: var(--spacing-md);
}

.custom-widget .widget-title {
    font-size: 1.2rem;
    margin-top: 0;
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border-color);
}

.custom-widget ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.custom-widget ul li {
    padding: var(--spacing-sm) 0;
    border-bottom: 1px dashed var(--border-color);
}

.custom-widget ul li:last-child {
    border-bottom: none;
}

.custom-widget ul li a {
    color: var(--text-color);
    transition: color 0.2s;
}

.custom-widget ul li a:hover {
    color: var(--navy-accent);
}

/* Breadcrumbs */
.breadcrumbs {
    font-size: 0.9rem;
    margin-bottom: var(--spacing-lg);
    color: var(--text-light);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
}

.breadcrumbs a {
    color: var(--text-light);
}

.breadcrumbs a:hover {
    color: var(--navy-accent);
    text-decoration: underline;
}

.breadcrumbs-separator {
    margin: 0 var(--spacing-xs);
    opacity: 0.7;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: space-between;
    margin-top: var(--spacing-xl);
    font-weight: 600;
}

.nav-links {
    display: flex;
    gap: var(--spacing-xs);
    align-items: center;
}

.nav-links a,
.nav-links span {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background-color: var(--card-bg);
    color: var(--text-color);
    text-decoration: none;
}

.nav-links a:hover {
    border-color: var(--navy-accent);
    color: var(--navy-accent);
}

.nav-links span.current {
    background-color: var(--navy-accent);
    color: #fff;
    border-color: var(--navy-accent);
}

/* Related Posts */
.related-posts {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

.related-posts h3 {
    margin-bottom: var(--spacing-md);
}

.related-posts-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.related-post-card {
    display: flex;
    flex-direction: column;
}

.related-thumbnail {
    display: block;
    border-radius: var(--border-radius);
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
}

.related-thumbnail img {
    width: 100%;
    aspect-ratio: 16/9;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.related-thumbnail:hover img {
    transform: scale(1.05);
}

.related-title {
    font-size: 1rem;
    margin: 0;
    line-height: 1.4;
}

.related-title a {
    color: var(--text-color);
}

.related-title a:hover {
    color: var(--navy-accent);
}

hr {
    border: 0;
    border-top: 1px solid var(--border-color);
    margin: var(--spacing-lg) 0;
}

/* Responsive */
@media (max-width: 900px) {
    .content-area {
        flex-direction: column;
    }
    .site-main-content {
        flex: auto; /* Fixing collapsed height from flex-basis 0 */
        width: 100%;
        overflow: hidden; /* Restore safe overflow to prevent image breakout */
    }
    .sidebar-area {
        flex: 1 1 auto;
        width: 100%;
        position: static; /* Disable sticky on mobile */
    }
    .header-inner {
        flex-wrap: wrap;
        justify-content: space-between;
    }
    .mobile-menu-toggle {
        display: block !important; /* Force show on mobile */
        order: -1;
    }
    .header-controls {
        order: 1;
    }
    .site-navigation {
        display: none;
        order: 2;
        width: 100%;
        margin-top: var(--spacing-md);
        padding-top: var(--spacing-md);
        border-top: 1px solid rgba(255,255,255,0.1);
    }
    .site-navigation.is-open {
        display: block;
    }
    .primary-menu {
        flex-direction: column;
        gap: var(--spacing-md);
    }
}

@media (max-width: 768px) {
    .related-posts-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    h1 {
        font-size: 1.8rem;
    }

    h2 {
        font-size: 1.3rem;
    }

    .post-card.layout-flex {
        flex-direction: column;
    }

    .post-card.layout-flex .post-card-thumbnail {
        flex: 1 1 auto;
        width: 100%;
        margin-bottom: var(--spacing-sm);
    }
    
    .related-posts-grid {
        grid-template-columns: 1fr;
    }
}