/* =========================================================
   DebateSylhetBD Encyclopedia - Modern Wikipedia CSS
   ========================================================= */

/* --- CSS VARIABLES --- */
:root {
    --wiki-bg: #ffffff;
    --wiki-body-bg: #f8f9fa;
    --wiki-text: #202122;
    --wiki-link: #3366cc;
    --wiki-link-hover: #1e3a8a;
    --wiki-border: #a2a9b1;
    --wiki-border-light: #eaecf0;
    --wiki-meta: #54595d;
    --font-heading: 'Linux Libertine', 'Georgia', 'Times New Roman', serif;
    --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --max-width: 1400px;
}

/* --- GLOBAL RESET & TYPOGRAPHY --- */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-body);
    background-color: var(--wiki-body-bg);
    color: var(--wiki-text);
    line-height: 1.6;
    font-size: 0.875rem; /* Wikipedia standard */
}

a {
    color: var(--wiki-link);
    text-decoration: none;
}

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

/* --- HEADER / NAVBAR --- */
.wiki-header {
    background: var(--wiki-bg);
    border-bottom: 1px solid var(--wiki-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 15px;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--wiki-text);
}

.wiki-brand {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: #000;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
}

.brand-icon {
    font-size: 1.8rem;
}

.header-center {
    flex: 1;
    max-width: 500px;
    margin: 0 20px;
}

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

.search-icon {
    position: absolute;
    left: 10px;
    color: var(--wiki-meta);
}

.search-wrapper input {
    width: 100%;
    padding: 8px 10px 8px 35px;
    border: 1px solid var(--wiki-border);
    border-radius: 2px;
    font-size: 0.9rem;
    transition: box-shadow 0.2s;
}

.search-wrapper input:focus {
    outline: none;
    border-color: var(--wiki-link);
    box-shadow: 0 0 0 2px rgba(51, 102, 204, 0.2);
}

.header-right.nav-links {
    display: flex;
    gap: 15px;
}

.header-right.nav-links a {
    font-weight: 500;
    font-size: 0.9rem;
}

/* --- MAIN LAYOUT (Sidebar + Content Grid) --- */
.wiki-layout {
    display: flex;
    max-width: var(--max-width);
    margin: 0 auto;
    min-height: 100vh;
}

/* --- SIDEBAR --- */
.wiki-sidebar {
    width: 250px;
    background: var(--wiki-body-bg);
    padding: 30px 20px;
    flex-shrink: 0;
}

.sidebar-section {
    margin-bottom: 30px;
}

.sidebar-section h3 {
    font-size: 0.8rem;
    color: var(--wiki-meta);
    text-transform: uppercase;
    border-bottom: 1px solid var(--wiki-border-light);
    padding-bottom: 5px;
    margin-bottom: 10px;
}

.category-list, .quick-links {
    list-style: none;
}

.category-list li, .quick-links li {
    margin-bottom: 5px;
}

.cat-btn {
    background: none;
    border: none;
    color: var(--wiki-link);
    cursor: pointer;
    font-size: 0.9rem;
    text-align: left;
    padding: 4px 0;
    width: 100%;
}

.cat-btn:hover {
    text-decoration: underline;
}

.cat-btn.active {
    color: #000;
    font-weight: bold;
    text-decoration: none;
}

.quick-links a {
    font-size: 0.85rem;
}

/* --- MAIN CONTENT AREA --- */
.wiki-content {
    flex: 1;
    background: var(--wiki-bg);
    border-left: 1px solid var(--wiki-border);
    border-right: 1px solid var(--wiki-border);
    padding: 30px 40px;
    box-shadow: 0 0 10px rgba(0,0,0,0.02);
}

.breadcrumbs {
    font-size: 0.8rem;
    color: var(--wiki-meta);
    margin-bottom: 10px;
}

.breadcrumbs a {
    color: var(--wiki-link);
}

.page-heading {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: normal;
    border-bottom: 1px solid var(--wiki-border);
    padding-bottom: 8px;
    margin-bottom: 15px;
}

.page-intro {
    font-size: 1rem;
    margin-bottom: 30px;
}

/* --- ARTICLE ITEMS (Wikipedia List Style) --- */
.article-list {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.article-item {
    display: flex;
    gap: 20px;
    padding-bottom: 25px;
    border-bottom: 1px solid var(--wiki-border-light);
}

.article-img-wrapper {
    flex-shrink: 0;
    width: 220px;
}

.article-img-wrapper img {
    width: 100%;
    height: 140px;
    object-fit: cover;
    border: 1px solid var(--wiki-border-light);
    border-radius: 2px;
}

.article-body {
    flex: 1;
}

.article-body h2 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    margin-bottom: 5px;
    font-weight: normal;
}

.article-meta {
    font-size: 0.8rem;
    color: var(--wiki-meta);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.badge {
    background: var(--wiki-border-light);
    padding: 2px 6px;
    border-radius: 3px;
    font-weight: bold;
    font-size: 0.7rem;
    color: #000;
}

.badge.geo { background: #e3f2fd; color: #0d47a1; }
.badge.hist { background: #fdf5e6; color: #e65100; }
.badge.eco { background: #e8f5e9; color: #1b5e20; }

.article-body p {
    margin-bottom: 10px;
    color: #202122;
    text-align: justify;
}

.read-more {
    font-weight: bold;
    font-size: 0.85rem;
}

/* --- FOOTER --- */
.wiki-footer {
    background: var(--wiki-body-bg);
    border-top: 1px solid var(--wiki-border);
    padding: 30px 20px;
    text-align: center;
    font-size: 0.75rem;
    color: var(--wiki-meta);
}

.footer-content {
    max-width: var(--max-width);
    margin: 0 auto;
}

.footer-links {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 10px;
    flex-wrap: wrap;
}

/* --- RESPONSIVE DESIGN (Mobile & Tablets) --- */
@media (max-width: 992px) {
    .wiki-sidebar { width: 200px; }
    .article-img-wrapper { width: 180px; }
}

@media (max-width: 768px) {
    .wiki-header {
        flex-wrap: wrap;
        gap: 10px;
        padding: 10px 15px;
    }
    
    .mobile-menu-btn { display: block; }
    
    .header-center {
        order: 3;
        max-width: 100%;
        margin: 0;
        width: 100%;
    }

    .wiki-layout {
        flex-direction: column;
    }

    /* Off-canvas sidebar for mobile */
    .wiki-sidebar {
        position: fixed;
        left: -100%;
        top: 60px; /* Below header */
        height: calc(100vh - 60px);
        width: 250px;
        box-shadow: 2px 0 5px rgba(0,0,0,0.1);
        transition: left 0.3s ease;
        z-index: 99;
        overflow-y: auto;
    }

    .wiki-sidebar.active { left: 0; }

    .wiki-content {
        padding: 20px 15px;
        border: none;
    }

    .article-item {
        flex-direction: column;
        gap: 10px;
    }

    .article-img-wrapper {
        width: 100%;
    }

    .article-img-wrapper img {
        height: 200px;
    }
}