:root {
            --blue: #094a8c;
            --blue-dk: #063266;
            --blue-lt: #e8f0fa;
            --blue-lter: #f0f5fc;
            --yellow: #f7ec11;
            --yellow-dk: #d4c90e;
            --cream: #f7f5f0;
            --white: #fff;
            --text: #1a1a1a;
            --muted: #5c5c5c;
            --border: #e0dbd0;
            --font: 'Cairo', sans-serif;
            --serif: 'Tajawal', Georgia, serif;
            --shadow: 0 8px 32px rgba(9, 74, 140, 0.12);
            --radius: 12px;
        }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body { font-family: var(--font); background: var(--cream); color: var(--text); font-size: 16px; line-height: 1.7; min-height: 100vh; overflow-x: hidden; }
        a { color: inherit; text-decoration: none; }
        img { max-width: 100%; display: block; }
        .btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 26px; border-radius: 40px; font-size: 14px; font-weight: 700; font-family: var(--font); cursor: pointer; border: 2px solid transparent; transition: all 0.25s; white-space: nowrap; }
        .btn-outline { border-color: rgba(255, 255, 255, 0.5); color: #fff; background: transparent; }
        .btn-outline:hover { border-color: var(--yellow); color: var(--yellow); background: rgba(247, 236, 17, 0.1); }
        .btn-yellow { background: var(--yellow); color: var(--blue-dk); border-color: var(--yellow); }
        .btn-yellow:hover { background: #fff; border-color: #fff; color: var(--blue-dk); }

        .breadcrumb-bar { background: #fff; border-bottom: 1px solid var(--border); padding: 12px 0; }
        .breadcrumb { max-width: 1100px; margin: 0 auto; padding: 0 28px; display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); }
        .breadcrumb a { color: var(--muted); transition: color .2s; }
        .breadcrumb a:hover { color: var(--blue); }
        .breadcrumb-sep { opacity: .4; }
        .breadcrumb-current { color: var(--text); font-weight: 700; }

        .container-archive { max-width: 1100px; margin: 0 auto; padding: 0 28px; }
        .main-archive { background: var(--cream); padding: 40px 0 60px; position: relative; z-index: 2; }

        @keyframes fadeUp { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: translateY(0); } }
        @keyframes goldBreath { 0%, 100% { color: var(--blue); } 50% { color: var(--blue-dk); } }
        @keyframes bookRise { from { opacity: 0; transform: translateY(18px) scale(0.88); } to { opacity: 1; transform: translateY(0) scale(1); } }
        @keyframes panelReveal { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }
        @keyframes ornamentFade { from { opacity: 0; } to { opacity: 1; } }
        @keyframes divinePulse { 0% { box-shadow: 0 0 0 0 rgba(9, 74, 140, 0.6); } 70% { box-shadow: 0 0 0 15px rgba(9, 74, 140, 0); } 100% { box-shadow: 0 0 0 0 rgba(9, 74, 140, 0); } }

        .book { transition: transform 0.5s cubic-bezier(0.2, 0.9, 0.4, 1.1), box-shadow 0.4s; cursor: pointer; position: relative; z-index: 1; transform-style: preserve-3d; overflow: hidden; border-radius: 4px; }
        .book img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.3s ease; }
        .book:hover { transform: translateY(-18px) rotate(1deg) scale(1.08) !important; box-shadow: 0 28px 40px rgba(0, 0, 0, 0.2), 0 0 0 2px var(--blue) !important; z-index: 12; }
        .book.sel { transform: translateY(-18px) scale(1.12) !important; z-index: 12; box-shadow: 0 30px 45px rgba(0, 0, 0, 0.22), 0 0 0 3px var(--yellow) !important; }
        .book:hover img { transform: scale(1.02); }

        .dtab-wrap { display: flex; flex-wrap: wrap; justify-content: center; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
        .dtab { cursor: pointer; padding: 10px 18px; border: 0; border-left: 1px solid var(--border); color: var(--blue-dk); font-size: 0.75rem; letter-spacing: 0.1em; background: var(--white); font-family: var(--font); transition: all 0.22s; text-transform: uppercase; font-weight: 700; position: relative; overflow: hidden; text-align: center; }
        .dtab:last-child { border-left: 0; }
        .dtab:hover { color: var(--blue); background: var(--blue-lt); }
        .dtab.active { background: var(--blue); color: var(--white); }
        .dtab-label { display: block; font-size: 0.55rem; font-weight: 400; opacity: 0.7; text-transform: none; letter-spacing: 0.05em; margin-top: 2px; }
        .dtab.active .dtab-label { color: rgba(255,255,255,0.7); }

        .guide-image { max-width: 100%; max-height: 220px; object-fit: contain; border-radius: var(--radius); box-shadow: var(--shadow); transition: all 0.4s; filter: sepia(0.1) brightness(1.02); }
        .guide-image:hover { filter: sepia(0) brightness(1.05); transform: scale(1.03); }

        .display-case { background: var(--white); border: 1px solid var(--border); border-bottom: 0; border-radius: var(--radius) var(--radius) 0 0; padding: 32px 20px 36px; }
        .shelf { height: 16px; background: #f0ebe2; border: 1px solid var(--border); border-top: 2px solid var(--blue-lt); border-radius: 0 0 var(--radius) var(--radius); }

        .cosmic-bg { position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; background: radial-gradient(circle at 50% 50%, rgba(9, 74, 140, 0.02) 0%, rgba(6, 50, 102, 0.05) 100%); }
        .particles-canvas { position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: 1; pointer-events: none; opacity: 0.35; }
        /* .timeline-progress removed (scroll bar dropped); .back-to-top is now a
           shared component in site.css / site.js (rendered once in the layout). */
        .reveal-on-scroll { opacity: 0; transform: translateY(20px); transition: all 0.6s cubic-bezier(0.2, 0.9, 0.4, 1.1); }
        .reveal-on-scroll.revealed { opacity: 1; transform: translateY(0); }
        .content-box { background: var(--white); border-radius: var(--radius); padding: 32px; margin: 32px 0; box-shadow: var(--shadow); border-right: 4px solid var(--blue); }
        .content-box ul { list-style: none; padding-right: 0; margin-bottom: 20px; }
        .content-box ul li { margin-bottom: 8px; padding-right: 24px; position: relative; }
        .content-box ul li::before { content: '✓'; position: absolute; inset-inline-start: 0; color: var(--blue); font-weight: 700; }
        .fc-title { font-size: 10px; font-weight: 800; text-transform: uppercase; letter-spacing: 1.5px; color: var(--yellow); margin-bottom: 14px; }
        .fn-list { list-style: none; display: flex; flex-direction: column; gap: 8px; }
        .fn-list a { font-size: 13px; color: rgba(255, 255, 255, .55); transition: color .2s; }
        .fn-list a:hover { color: var(--yellow); }
        .sl-link { width: 34px; height: 34px; border-radius: 50%; border: 1px solid rgba(255, 255, 255, .15); display: flex; align-items: center; justify-content: center; font-size: 11px; font-weight: 700; color: rgba(255, 255, 255, .6); transition: all .2s; }
        .sl-link:hover { background: var(--yellow); color: var(--blue-dk); border-color: var(--yellow); }
        .nl-input { padding: 9px 13px; border-radius: var(--radius); border: 1px solid rgba(255, 255, 255, .15); background: rgba(255, 255, 255, .06); color: #fff; font-size: 13px; font-family: var(--font); width: 100%; margin-bottom: 8px; }
        .nl-input:focus { outline: none; border-color: var(--yellow); }
        .nl-input::placeholder { color: rgba(255, 255, 255, .25); }