:root {
            --bg-light: #f9f9fb;
            --bg-dark: #121212;
            --text-light: #222;
            --text-dark: #eee;
            --card-light: #fff;
            --card-dark: #1e1e1e;
            --accent: #f7b500;
            --accent-gradient: linear-gradient(135deg, #ffd84d, #f7b500);
        }

        body {
            margin: 0;
            font-family: 'Poppins', sans-serif;
            background: var(--bg-light);
            color: var(--text-light);
            transition: .3s;
        }

        body.dark {
            background: var(--bg-dark);
            color: var(--text-dark);
        }

        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 1.5rem;
            backdrop-filter: blur(12px);
            background: rgba(255, 255, 255, .7);
            position: sticky;
            top: 0;
            z-index: 100;
            border-bottom: 1px solid rgba(0, 0, 0, .05);
        }

        body.dark header {
            background: rgba(18, 18, 18, .8);
            border-bottom: 1px solid rgba(255, 255, 255, .1);
        }

        header h2 {
            margin: 0;
            font-family: 'Share Tech Mono', monospace;
            font-size: .9rem;
        }

        nav {
            display: flex;
            gap: .8rem;
            align-items: center;
        }

        nav a {
            padding: .4rem 1rem;
            border-radius: 12px;
            font-weight: 500;
            text-decoration: none;
            color: inherit;
            transition: background .2s, color .2s;
        }

        nav a.active,
        nav a:hover {
            background: var(--accent);
            color: #000;
        }

        .search-toggle {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            cursor: pointer;
            box-shadow: 0 2px 6px rgba(0, 0, 0, .12);
            background: var(--card-light);
            user-select: none;
            font-size: 1rem;
        }

        body.dark .search-toggle {
            background: var(--card-dark);
            color: #fff;
        }

        .theme-toggle {
            position: fixed;
            bottom: 20px;
            left: 20px;
            background: var(--card-light);
            border: none;
            border-radius: 50%;
            width: 42px;
            height: 42px;
            font-size: 1.2rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 2px 6px rgba(0, 0, 0, .2);
            z-index: 2000;
        }

        body.dark .theme-toggle {
            background: var(--card-dark);
            color: #fff;
        }

        #searchBarWrap {
            overflow: hidden;
            max-height: 0;
            opacity: 0;
            transform: translateY(-8px);
            transition: max-height .28s ease, opacity .28s ease, transform .28s ease, padding .28s ease;
            padding: 0 1.5rem;
            max-width: 800px;
            margin: auto;
        }

        #searchBarWrap.open {
            max-height: 120px;
            opacity: 1;
            transform: translateY(0);
            padding: .6rem 1.5rem 0;
        }

        #searchInput {
            width: 100%;
            padding: .7rem .95rem;
            border: 1px solid #ddd;
            border-radius: 16px;
            outline: none;
            background: var(--card-light);
            color: inherit;
            font-family: inherit;
            font-size: .95rem;
            box-shadow: 0 4px 14px rgba(0, 0, 0, .06);
        }

        body.dark #searchInput {
            background: var(--card-dark);
            border-color: #333;
            color: var(--text-dark);
        }

        main {
            padding: 1.5rem;
            max-width: 800px;
            margin: auto;
        }

        .card {
            background: var(--card-light);
            margin-bottom: 1.2rem;
            border-radius: 18px;
            padding: 1.2rem;
            box-shadow: 0 4px 12px rgba(0, 0, 0, .05);
        }

        body.dark .card {
            background: var(--card-dark);
        }

        .card h3 {
            margin: .3rem 0;
        }

        .date {
            font-size: .85rem;
            color: #777;
            margin-bottom: .6rem;
        }

        body.dark .date {
            color: #aaa;
        }

        .btn {
            display: inline-block;
            padding: .55rem 1.2rem;
            border-radius: 14px;
            background: var(--accent-gradient);
            color: #000;
            font-weight: 600;
            cursor: pointer;
            text-decoration: none;
            box-shadow: 0 4px 12px rgba(0, 0, 0, .25);
            transition: transform .2s;
        }

        .btn:hover {
            transform: scale(1.05);
        }

        .thumb {
            width: 100%;
            max-height: 180px;
            object-fit: cover;
            border-radius: 12px;
            margin-bottom: .8rem;
        }

        .no-results {
            padding: 1rem;
            text-align: center;
            opacity: .7
        }

        footer {
            text-align: center;
            padding: 1rem;
            font-size: .9rem;
            opacity: .7;
        }

        #loadingOverlay {
            position: fixed;
            inset: 0;
            background: rgba(255, 255, 255, .85);
            display: none;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-family: 'Poppins', sans-serif;
            font-weight: 500;
            color: #333;
            z-index: 3000;
        }

        body.dark #loadingOverlay {
            background: rgba(18, 18, 18, .85);
            color: #eee;
        }

        .loader {
            border: 4px solid #f3f3f3;
            border-top: 4px solid var(--accent);
            border-radius: 50%;
            width: 40px;
            height: 40px;
            animation: spin 1s linear infinite;
            margin-bottom: 1rem;
        }

        @keyframes spin {
            0% {
                transform: rotate(0deg);
            }

            100% {
                transform: rotate(360deg);
            }
        }

        .doc-info {
            font-size: .9rem;
            color: #888;
            margin-top: .5rem;
            margin-bottom: .8rem;
            display: flex;
            align-items: center;
            gap: .3rem;
        }

        body.dark .doc-info {
            color: #aaa;
        }

        .card p {
            overflow-wrap: anywhere;
            word-break: break-word;
        }

        @media(max-width:600px) {
            header {
                flex-direction: column;
                align-items: flex-start;
                padding: .8rem 1rem .5rem;
                gap: .3rem;
            }

            header h2 {
                font-size: 1.2rem;
                margin-bottom: .2rem;
            }

            nav {
                order: 2;
                width: 100%;
                justify-content: space-around;
                margin-top: .2rem;
            }

            nav a {
                flex: 1;
                text-align: center;
                padding: .35rem .5rem;
                font-size: .8rem;
                border-radius: 8px;
            }

            .search-toggle {
                position: absolute;
                top: 10px;
                right: 14px;
                width: 34px;
                height: 34px;
            }

            .theme-toggle {
                left: 15px !important;
                bottom: 20px !important;
            }
        }

        #cacheStatus {
            position: fixed;
            bottom: 10px;
            right: 20px;
            font-size: .8rem;
            opacity: .6;
        }

        #loadMoreBtn {
            padding: 0.3rem 0.75rem;
            font-size: 0.8rem;
            border-radius: 10px;
        }