/* --- CSS Variables --- */
        :root {
            --background: #fcfbfe;
            --color: #323133;
            --cardbackground: #ffffff;
            --cardborder: #e9e9e9;
            --cardtext: #323133;
            --cardtext2: #5f5e61;
            --cardshadow: rgba(0, 0, 0, 0.08);
            /* Updated Accent: Electric Purple/Blue for "Digital/Experimental" vibe */
            --accent: #6d28d9; 
            --accent-hover: #5b21b6;
            --accent-subtle: rgba(109, 40, 217, 0.08);
            --code-bg: #1e1e1e;
            --scrollbar-track: #f0f0f0;
            --scrollbar-thumb: #d1d1d1;
            
            /* Syntax Highlighting Mock Colors */
            --syntax-kw: #c678dd;
            --syntax-str: #98c379;
            --syntax-fn: #61afef;
            --syntax-com: #5c6370;
        }

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

        /* Dark Theme Variables */
        html.dark {
            --background: #0f0f11;
            --color: #f5f7fa;
            --cardbackground: #18181b;
            --cardborder: #2e2e33;
            --cardtext: #e1e3e6;
            --cardtext2: #a0a0a5;
            --cardshadow: rgba(0, 0, 0, 0.5);
            /* Neon Cyan for Dark Mode "Cyber/Hacker" vibe */
            --accent: #0ea5e9; 
            --accent-hover: #38bdf8;
            --accent-subtle: rgba(14, 165, 233, 0.1);
            --code-bg: #0a0a0a;
            --scrollbar-track: #18181b;
            --scrollbar-thumb: #333;
        }

        /* --- Base Layout --- */
        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "Inter", sans-serif;
            background-color: var(--background);
            /* Matrix-lite Grid Pattern */
            background-image: 
                linear-gradient(rgba(0,0,0,0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(0,0,0,0.03) 1px, transparent 1px);
            background-size: 20px 20px;
            background-position: center top;
            color: var(--color);
            line-height: 1.7;
            display: flex;
            flex-direction: column;
            width: 100%;
            min-height: 100vh;
            transition: background-color 0.3s ease, color 0.3s ease;
        }
        
        html.dark body {
             background-image: 
                linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
        }

        /* Fade out grid at bottom */
        body::after {
            content: "";
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            height: 100vh;
            background: radial-gradient(circle at center, transparent 0%, var(--background) 80%);
            z-index: -1;
            pointer-events: none;
        }

        /* --- Custom Scrollbar --- */
        ::-webkit-scrollbar {
            width: 12px;
        }
        ::-webkit-scrollbar-track {
            background: var(--scrollbar-track);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--scrollbar-thumb);
            border-radius: 6px;
            border: 3px solid var(--scrollbar-track);
        }

        main {
            flex: 1;
            width: 100%;
            display: flex;
            flex-direction: column; 
            align-items: center;    
        }

        /* --- Hero Section --- */
        .hero-section {
            width: 100%;
            max-width: 1200px;
            padding: 5rem 1.5rem 3rem 1.5rem;
            box-sizing: border-box;
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 4rem;
            align-items: center;
            position: relative;
        }

        .hero-content {
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        /* Badge above title */
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--accent-subtle);
            color: var(--accent);
            padding: 0.4rem 1rem;
            border-radius: 4px;
            font-family: "Courier New", monospace;
            font-size: 0.85rem;
            font-weight: 700;
            width: fit-content;
            margin-bottom: 1.5rem;
            border: 1px solid rgba(var(--accent), 0.2);
        }

        .hero-title {
            font-family: "Merriweather", serif;
            font-weight: 900;
            font-size: clamp(2.5rem, 6vw, 4rem);
            line-height: 1.1;
            margin: 0 0 1.5rem 0;
            color: var(--color);
        }

        .hero-title span {
            color: var(--accent);
            position: relative;
            display: inline-block;
        }
        
        .hero-title span::after {
            content: '_';
            animation: blink 1s infinite;
        }
        
        @keyframes blink { 50% { opacity: 0; } }

        .hero-subtitle {
            font-size: 1.25rem;
            color: var(--cardtext2);
            margin-bottom: 2.5rem;
            max-width: 90%;
            font-weight: 400;
        }

        .hero-buttons {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .btn {
            padding: 0.9rem 1.8rem;
            border-radius: 8px;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.2s ease;
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 1rem;
        }

        .btn-primary {
            background: var(--accent);
            color: white;
            border: 2px solid var(--accent);
            box-shadow: 0 4px 15px var(--accent-subtle);
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px var(--accent-subtle);
        }

        .btn-secondary {
            background: transparent;
            color: var(--color);
            border: 2px solid var(--cardborder);
        }
        .btn-secondary:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: var(--cardbackground);
        }

        /* --- Hero Visuals (Showcase) --- */
        .hero-showcase {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.5rem;
            position: relative;
        }
        
        /* Floating Cards Effect */
        .showcase-card {
            background: var(--cardbackground);
            border: 1px solid var(--cardborder);
            border-radius: 16px;
            padding: 1.5rem;
            box-shadow: 0 20px 40px var(--cardshadow);
            display: flex;
            flex-direction: row; /* Horizontal layout for list/items */
            align-items: center;
            gap: 1.5rem;
            position: relative;
            overflow: hidden;
            transition: transform 0.3s ease;
        }

        .showcase-card:nth-child(1) { transform: translateX(-20px); }
        .showcase-card:nth-child(2) { transform: translateX(20px); }

        .showcase-card:hover {
            transform: scale(1.02) !important;
            z-index: 10;
        }

        .showcase-icon-box {
            width: 60px;
            height: 60px;
            background: var(--accent-subtle);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            flex-shrink: 0;
        }

        .showcase-text h4 {
            font-family: "Inter", sans-serif;
            font-size: 1.1rem;
            font-weight: 700;
            margin: 0 0 0.25rem 0;
            color: var(--color);
        }
        .showcase-text p {
            font-size: 0.9rem;
            margin: 0;
            line-height: 1.4;
            color: var(--cardtext2);
        }

        /* CSS Mini Visuals */
        .mini-visual {
            margin-left: auto;
            height: 50px;
            width: 60px;
            position: relative;
            opacity: 0.8;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        /* Document/Template Visual */
        .doc-icon {
            width: 36px; height: 46px;
            border: 2px solid var(--cardtext2);
            border-radius: 4px;
            position: relative;
            background: var(--background);
        }
        .doc-icon::before {
            content:''; position:absolute; top:8px; left:6px; width:20px; height:2px; background:var(--accent);
        }
        .doc-icon::after {
            content:''; position:absolute; top:14px; left:6px; width:14px; height:2px; background:var(--cardtext2); opacity:0.5;
            box-shadow: 0 6px 0 0 currentColor, 0 12px 0 0 currentColor;
        }

        /* 3D Cube Visual (CSS only) */
        .cube-spinner {
            width: 30px; height: 30px;
            position: relative;
            transform-style: preserve-3d;
            animation: spin 8s infinite linear;
        }
        .face {
            position: absolute; width: 30px; height: 30px;
            background: var(--accent-subtle);
            border: 1px solid var(--accent);
            opacity: 0.6;
        }
        .face:nth-child(1) { transform: rotateY(0deg) translateZ(15px); }
        .face:nth-child(2) { transform: rotateY(90deg) translateZ(15px); }
        .face:nth-child(3) { transform: rotateY(180deg) translateZ(15px); }
        .face:nth-child(4) { transform: rotateY(-90deg) translateZ(15px); }
        .face:nth-child(5) { transform: rotateX(90deg) translateZ(15px); }
        .face:nth-child(6) { transform: rotateX(-90deg) translateZ(15px); }

        @keyframes spin {
            0% { transform: rotateX(0) rotateY(0); }
            100% { transform: rotateX(360deg) rotateY(360deg); }
        }


        /* --- Mobile Fixes for Hero --- */
        @media (max-width: 900px) {
            .hero-section {
                grid-template-columns: 1fr;
                text-align: center;
                padding-top: 3rem;
                padding-bottom: 0;
                gap: 3rem;
            }
            .hero-badge { margin: 0 auto 1.5rem auto; }
            .hero-content { align-items: center; }
            .hero-subtitle { margin-left: auto; margin-right: auto; }
            .hero-buttons { justify-content: center; }
            .hero-showcase { 
                max-width: 500px; 
                margin: 0 auto;
                transform: none;
            }
            .showcase-card:nth-child(1), 
            .showcase-card:nth-child(2) { transform: none; }
        }

        /* --- Grid Layout for Content + Sidebar --- */
        .layout-container {
            display: grid;
            grid-template-columns: 1fr 340px; /* Content | Sidebar */
            gap: 3rem;
            width: 100%;
            max-width: 1200px;
            padding: 3rem 1.5rem 5rem 1.5rem;
            box-sizing: border-box;
        }

        @media (max-width: 900px) {
            .layout-container {
                grid-template-columns: 1fr;
            }
        }

        /* --- Header --- */
        header {
            position: sticky;
            top: 0;
            z-index: 100;
            width: 100%;
            height: 70px;
            background: rgba(255,255,255,0.8);
            border-bottom: 1px solid var(--cardborder);
            backdrop-filter: blur(12px);
            transition: background-color 0.3s ease, border-color 0.3s ease;
        }
        html.dark header { background: rgba(15,15,17,0.8); }

        .header-content {
            max-width: 1200px;
            margin: 0 auto;
            height: 100%;
            padding: 0 1.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            color: var(--color);
            font-weight: 800;
            font-size: 1.4rem;
            text-decoration: none;
            letter-spacing: -0.5px;
        }
        .logo span { color: var(--accent); }

        .nav-links {
            display: flex;
            gap: 2rem;
        }

        .nav-link {
            color: var(--cardtext2);
            text-decoration: none;
            font-weight: 500;
            font-size: 0.95rem;
            transition: color 0.2s;
        }
        .nav-link:hover { color: var(--accent); }

        @media (max-width: 768px) {
            .nav-links { display: none; } /* Hide nav on mobile for simplicity */
        }

        /* --- Content Cards --- */
        article {
            margin: 0 0 2rem 0;
            padding: 3rem;
            width: 100%;
            background: var(--cardbackground);
            border: 1px solid var(--cardborder);
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
            border-radius: 16px;
            box-sizing: border-box;
            transition: transform 0.2s ease, box-shadow 0.2s ease;
        }
        article:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.025);
        }

        @media (max-width: 600px) {
            article { padding: 1.5rem; border-radius: 12px; }
        }

        /* --- Sidebar & Widgets --- */
        aside {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .sidebar-widget {
            background: var(--cardbackground);
            border: 1px solid var(--cardborder);
            border-radius: 16px;
            padding: 1.5rem;
        }

        @media (min-width: 901px) {
            aside { position: sticky; top: 100px; height: fit-content; }
        }

        .sidebar-widget h3 {
            font-family: "Inter", sans-serif;
            font-weight: 700;
            margin: 0 0 1rem 0;
            font-size: 0.9rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            color: var(--cardtext2);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .sidebar-link {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.75rem 0;
            color: var(--color);
            text-decoration: none;
            border-bottom: 1px solid var(--cardborder);
            transition: all 0.2s;
            font-weight: 500;
        }
        .sidebar-link:last-child { border-bottom: none; }
        .sidebar-link:hover { color: var(--accent); padding-left: 0.25rem; }
        .sidebar-link span.count { 
            font-size: 0.8rem; 
            background: var(--cardborder); 
            padding: 2px 8px; 
            border-radius: 12px; 
            color: var(--cardtext2);
        }
        
        /* Loading skeleton for counts */
        .count.loading { width: 20px; height: 12px; background: var(--cardborder); border-radius: 4px; color:transparent; }

        /* Instructor Profile */
        .instructor-profile {
            display: flex;
            align-items: flex-start;
            gap: 1rem;
            margin-bottom: 1rem;
        }
        .avatar {
            width: 48px; height: 48px;
            background: var(--accent);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: 800;
            flex-shrink: 0;
        }
        .instructor-info strong { display: block; line-height: 1.2; margin-bottom: 0.25rem;}
        .instructor-info small { color: var(--cardtext2); line-height: 1.2; display: block; }

        /* --- Typography --- */
        h1, h2, h3 {
            font-family: "Merriweather", serif;
            color: var(--color);
            line-height: 1.3;
        }
        
        article h1 { 
            font-size: 2.2rem; 
            margin-bottom: 1.5rem; 
            margin-top: 0; 
            color: var(--accent);
        }
        
        article h2 {
            font-size: 1.5rem;
            margin-top: 2rem;
            margin-bottom: 1rem;
            position: relative;
            padding-left: 1rem;
        }
        
        /* Stylized decorative bar next to H2 */
        article h2::before {
            content: '';
            position: absolute;
            left: 0; top: 5px; bottom: 5px;
            width: 4px;
            background: var(--accent);
            border-radius: 2px;
        }

        p { margin-bottom: 1.5em; font-size: 1.05rem; color: var(--cardtext); }

        a {
            color: var(--accent);
            text-decoration: none;
            font-weight: 600;
        }
        a:hover { text-decoration: underline; }

        blockquote {
            margin: 2em 0;
            padding: 1.5rem 2rem;
            background: var(--background);
            border-left: 4px solid var(--accent);
            border-radius: 0 12px 12px 0;
            font-style: italic;
            color: var(--cardtext);
            font-size: 1.1rem;
        }

        /* --- Code Blocks --- */
        pre {
            margin: 2em 0;
            padding: 1.5rem;
            background: var(--code-bg);
            color: #eee;
            border-radius: 12px;
            overflow-x: auto;
            border: 1px solid var(--cardborder);
            font-family: "Courier New", monospace;
            font-size: 0.9rem;
            line-height: 1.6;
        }

        /* Fake syntax highlighting classes */
        .kw { color: var(--syntax-kw); }
        .str { color: var(--syntax-str); }
        .fn { color: var(--syntax-fn); }
        .com { color: var(--syntax-com); font-style: italic; }

        /* --- Footer --- */
        footer {
            margin-top: auto;
            padding: 3rem 1rem;
            text-align: center;
            border-top: 1px solid var(--cardborder);
            font-size: 0.9rem;
            color: var(--cardtext2);
            background: var(--cardbackground);
        }

        /* --- Dark Mode Toggle --- */
        .darkmode {
            position: fixed;
            bottom: 2rem;
            right: 2rem; /* Changed to Right for better UX */
            width: 3.5rem;
            height: 3.5rem;
            border-radius: 50%;
            background: var(--accent);
            border: none;
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            z-index: 50;
            box-shadow: 0 4px 15px var(--accent-subtle);
            transition: transform 0.2s ease, box-shadow 0.2s ease;
            overflow: hidden;
        }

        .darkmode:hover {
            transform: scale(1.1);
            box-shadow: 0 6px 20px var(--accent-subtle);
        }

        .darkmode .material-symbols-outlined {
            position: absolute;
            font-size: 1.5rem;
            transition: all 0.4s ease;
        }

        .darkmode .light-icon { opacity: 0; transform: rotate(90deg); }
        .darkmode .dark-icon { opacity: 1; transform: rotate(0deg); }

        html.dark .darkmode .light-icon { opacity: 1; transform: rotate(0deg); }
        html.dark .darkmode .dark-icon { opacity: 0; transform: rotate(-90deg); }
        
        /* View Transition */
        ::view-transition-old(root), ::view-transition-new(root) {
            animation: none;
            mix-blend-mode: normal;
        }
        
                .btn-sm {
            padding: 0.4rem 0.8rem;
            border-radius: 6px;
            font-size: 0.85rem;
            font-weight: 600;
            text-decoration: none;
            color: var(--color);
            border: 1px solid var(--cardborder);
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            cursor: pointer;
            transition: all 0.2s ease;
            background: transparent;
        }
        .btn-sm:hover { border-color: var(--accent); color: var(--accent); }

                        /*
        :root {
            --background: #fcfbfe;
            --color: #323133;
            --cardbackground: #ffffff;
            --cardborder: #e9e9e9;
            --cardtext: #323133;
            --cardtext2: #5f5e61;
            --cardshadow: rgba(0, 0, 0, 0.08);
            --accent: #6d28d9; 
            --accent-hover: #5b21b6;
            --accent-subtle: rgba(109, 40, 217, 0.08);
            --code-bg: #1e1e1e;
            --scrollbar-track: #f0f0f0;
            --scrollbar-thumb: #d1d1d1;
        }

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

        html.dark {
            --background: #0f0f11;
            --color: #f5f7fa;
            --cardbackground: #18181b;
            --cardborder: #2e2e33;
            --cardtext: #e1e3e6;
            --cardtext2: #a0a0a5;
            --cardshadow: rgba(0, 0, 0, 0.5);
            --accent: #0ea5e9; 
            --accent-hover: #38bdf8;
            --accent-subtle: rgba(14, 165, 233, 0.1);
            --code-bg: #0a0a0a;
            --scrollbar-track: #18181b;
            --scrollbar-thumb: #333;
        }

        html {
            scroll-behavior: smooth;
            height: 100%;
        }

        body {
            font-family: "Inter", sans-serif;
            background-color: var(--background);
            background-image: 
                linear-gradient(rgba(0,0,0,0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(0,0,0,0.03) 1px, transparent 1px);
            background-size: 20px 20px;
            background-position: center top;
            color: var(--color);
            line-height: 1.7;
            display: flex;
            flex-direction: column;
            width: 100%;
            min-height: 100vh;
            transition: background-color 0.3s ease, color 0.3s ease;
        }
        
        html.dark body {
             background-image: 
                linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
        }

        ::-webkit-scrollbar { width: 12px; }
        ::-webkit-scrollbar-track { background: var(--scrollbar-track); }
        ::-webkit-scrollbar-thumb {
            background: var(--scrollbar-thumb);
            border-radius: 6px;
            border: 3px solid var(--scrollbar-track);
        }

        main {
            flex: 1;
            width: 100%;
            display: flex;
            flex-direction: column; 
            align-items: center;    
            position: relative;
        }

        header {
            position: sticky;
            top: 0;
            z-index: 100;
            width: 100%;
            height: 70px;
            background: rgba(255,255,255,0.8);
            border-bottom: 1px solid var(--cardborder);
            backdrop-filter: blur(12px);
            transition: background-color 0.3s ease, border-color 0.3s ease;
        }
        html.dark header { background: rgba(15,15,17,0.8); }

        .header-content {
            max-width: 1200px;
            margin: 0 auto;
            height: 100%;
            padding: 0 1.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            color: var(--color);
            font-weight: 800;
            font-size: 1.4rem;
            text-decoration: none;
            letter-spacing: -0.5px;
        }
        .logo span { color: var(--accent); }

        .nav-links { display: flex; gap: 2rem; }
        .nav-link {
            color: var(--cardtext2);
            text-decoration: none;
            font-weight: 500;
            font-size: 0.95rem;
            transition: color 0.2s;
            cursor: pointer;
        }
        .nav-link:hover { color: var(--accent); }
        @media (max-width: 768px) { .nav-links { display: none; } }
*/
        /* --- Viewer Specific Styles --- */
        .viewer-wrapper {
            width: 100%;
            flex: 1;
            display: flex;
            flex-direction: column;
            background: var(--background);
        }
        
        .viewer-toolbar {
            width: 100%;
            padding: 0.5rem 1.5rem;
            border-bottom: 1px solid var(--cardborder);
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: var(--cardbackground);
            font-size: 0.9rem;
        }

        .viewer-frame {
            flex: 1;
            width: 100%;
            border: none;
            background: white; /* Always white for neutral template view */
        }

        /* --- Gallery Styles --- */
        .gallery-wrapper {
            width: 100%;
            max-width: 1200px;
            padding: 2rem 1.5rem;
            display: flex;
            flex-direction: column;
            gap: 2rem;
            flex: 1;
        }

        .gallery-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 2rem;
        }

        .project-card {
            background: var(--cardbackground);
            border: 1px solid var(--cardborder);
            border-radius: 12px;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: transform 0.2s, box-shadow 0.2s;
            text-decoration: none;
            color: var(--color);
        }

        .project-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 10px 20px var(--cardshadow);
            border-color: var(--accent);
        }

        .card-preview {
            height: 160px;
            background: var(--cardborder);
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--cardtext2);
            font-size: 3rem;
        }
        
        .card-preview .tag-pill {
            position: absolute;
            top: 10px;
            right: 10px;
            background: rgba(0,0,0,0.6);
            color: white;
            padding: 4px 8px;
            border-radius: 4px;
            font-size: 0.7rem;
            font-weight: 600;
            backdrop-filter: blur(4px);
        }

        .card-body {
            padding: 1.25rem;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
            flex: 1;
        }

        .card-title {
            font-family: "Merriweather", serif;
            font-size: 1.1rem;
            font-weight: 700;
            margin: 0;
        }

        .card-meta {
            font-size: 0.85rem;
            color: var(--cardtext2);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .card-tags {
            margin-top: auto;
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }

        .tag {
            font-size: 0.75rem;
            background: var(--background);
            padding: 2px 8px;
            border-radius: 4px;
            border: 1px solid var(--cardborder);
            color: var(--cardtext2);
        }

        /* Ad Card Styles */
        .ad-card {
            background: linear-gradient(135deg, var(--code-bg), #000);
            border: 1px solid var(--cardborder);
            border-radius: 12px;
            color: white;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 2rem;
            gap: 1rem;
        }
        .ad-card h3 { margin: 0; font-size: 1.2rem; color:white; }
        .ad-label {
            font-size: 0.7rem;
            text-transform: uppercase;
            letter-spacing: 2px;
            opacity: 0.6;
        }

        /* Pagination */
        .pagination {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 1rem;
            margin-top: 2rem;
            padding-bottom: 2rem;
        }
        .page-info {
            font-size: 0.9rem;
            color: var(--cardtext2);
            font-weight: 500;
        }

        /* Loading/Error states */
        .viewer-overlay {
            position: absolute;
            top: 70px; /* Below header */
            left: 0; right: 0; bottom: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--background);
            z-index: 10;
        }
        .hidden { display: none !important; }
        
        .loader {
            width: 48px;
            height: 48px;
            border: 5px solid var(--cardborder);
            border-bottom-color: var(--accent);
            border-radius: 50%;
            display: inline-block;
            box-sizing: border-box;
            animation: rotation 1s linear infinite;
        }
        
        @keyframes rotation {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        /*
        footer {
            margin-top: auto;
            padding: 1rem 1rem; 
            text-align: center;
            border-top: 1px solid var(--cardborder);
            font-size: 0.9rem;
            color: var(--cardtext2);
            background: var(--cardbackground);
        }

        .darkmode {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            width: 3.5rem;
            height: 3.5rem;
            border-radius: 50%;
            background: var(--accent);
            border: none;
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            z-index: 50;
            box-shadow: 0 4px 15px var(--accent-subtle);
            transition: transform 0.2s ease, box-shadow 0.2s ease;
            overflow: hidden;
        }
        .darkmode:hover { transform: scale(1.1); box-shadow: 0 6px 20px var(--accent-subtle); }
        .darkmode .material-symbols-outlined { position: absolute; font-size: 1.5rem; transition: all 0.4s ease; }
        .darkmode .light-icon { opacity: 0; transform: rotate(90deg); }
        .darkmode .dark-icon { opacity: 1; transform: rotate(0deg); }
        html.dark .darkmode .light-icon { opacity: 1; transform: rotate(0deg); }
        html.dark .darkmode .dark-icon { opacity: 0; transform: rotate(-90deg); }
        
        ::view-transition-old(root), ::view-transition-new(root) { animation: none; mix-blend-mode: normal; }
        */