/* Migrated page-specific styles. */
:root { 
        --bg-fb: #0a0a0a; 
        --or: #d4af37; 
        --or-glow: rgba(212, 175, 55, 0.15);
        --text-gray: #a0a0a0; 
    }

    .page-wrapper {
        background-color: var(--bg-fb);
        color: #fff;
        padding-top: 60px;
        padding-bottom: 80px;
        position: relative;
        overflow: hidden;
    }

    /* HEADER FIXE (Contenu rétabli à l'original) */
    .content-header {
        position: relative; z-index: 10;
        max-width: 900px; margin: 0 auto; text-align: center; padding: 0 20px;
    }

    .content-header h1 {
        font-family: 'Playfair Display', serif; color: var(--or);
        font-size: 3.5rem; text-transform: uppercase; letter-spacing: 10px; margin-bottom: 5px;
    }

    .arabic-title { font-family: 'Amiri', serif; font-size: 2.5rem; color: #fff; margin-bottom: 20px; }
    .subtitle { font-family: 'Playfair Display', serif; font-style: italic; font-size: 1.4rem; color: var(--text-gray); margin-bottom: 25px; }
    .description-text { line-height: 1.8; font-size: 1.1rem; color: #ccc; max-width: 800px; margin: 0 auto; }

    /* ZONE FLIPBOOK OPTIMISÉE */
    .flipbook-container {
        display: flex; flex-direction: column; align-items: center;
        margin: 50px 0; width: 100%; position: relative;
        /* Halo lumineux derrière le livre */
        background: radial-gradient(circle, var(--or-glow) 0%, rgba(0,0,0,0) 70%);
    }

    #flipbook-viewport {
        width: 100%; display: flex; justify-content: center; align-items: center;
        background-color: transparent; transition: all 0.5s ease; position: relative;
        min-height: 400px;
    }

    #flipbook {
        visibility: hidden; opacity: 0; margin: 0 auto;
        transition: opacity 0.8s ease; 
        box-shadow: 0 50px 100px -20px rgba(0,0,0,0.8), 0 30px 60px -30px rgba(0,0,0,0.9);
    }

    #flipbook.ready { visibility: visible; opacity: 1; }

    .page { width: 100%; height: 100%; background-color: #111; background-size: contain; background-position: center; background-repeat: no-repeat; }

    /* Navigation Design "Sexy" */
    .flipbook-nav { 
        display: flex; gap: 20px; margin-top: 40px; flex-wrap: wrap; justify-content: center; 
        z-index: 100;
    }
    
    .btn-action {
        background: rgba(255, 255, 255, 0.03); 
        border: 1px solid rgba(212, 175, 55, 0.3); 
        color: var(--or);
        padding: 14px 28px; cursor: pointer; font-size: 0.75rem; letter-spacing: 2px;
        text-transform: uppercase; transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1); 
        text-decoration: none;
        display: flex; align-items: center; gap: 10px;
        backdrop-filter: blur(10px);
    }

    .btn-action:hover { 
        background: var(--or); color: #000; 
        border-color: var(--or);
        transform: translateY(-3px);
        box-shadow: 0 10px 20px rgba(212, 175, 55, 0.2);
    }

    .btn-download { border-color: rgba(255,255,255,0.2); color: #fff; }
    .btn-download:hover { background: #fff; border-color: #fff; color: #000; }

    .page-counter {
        margin-top: 15px;
        font-family: 'Montserrat', sans-serif;
        font-size: 0.8rem;
        letter-spacing: 3px;
        color: var(--or);
        text-transform: uppercase;
        opacity: 0.8;
    }

    .rtl-notice { 
        margin-top: 25px; font-size: 0.7rem; color: var(--text-gray); 
        font-style: normal; letter-spacing: 2px; text-transform: uppercase; 
        border-top: 1px solid rgba(212, 175, 55, 0.1); padding-top: 10px;
    }

    #fs-help-msg {
        position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%);
        background: var(--or); color: #000; padding: 12px 25px;
        border-radius: 50px; font-size: 0.8rem; font-weight: bold;
        z-index: 10000; opacity: 0; pointer-events: none; transition: all 0.5s ease;
        text-transform: uppercase; letter-spacing: 1px;
    }
    #fs-help-msg.show { opacity: 1; bottom: 50px; }

    .expo-details {
        max-width: 1100px; margin: 60px auto 0 auto;
        display: grid; grid-template-columns: 1fr 1fr; gap: 60px;
        padding: 80px 20px; border-top: 1px solid rgba(212, 175, 55, 0.15);
    }

    .info-block h3 { color: var(--or); font-family: 'Playfair Display', serif; text-transform: uppercase; letter-spacing: 3px; margin-bottom: 25px; font-size: 1.4rem; }
    .info-block p { color: var(--text-gray); font-size: 1.05rem; line-height: 1.7; margin-bottom: 15px; }
    .arabic-text { direction: rtl; font-family: 'Amiri', serif; color: #eee; font-size: 1.2rem; }

    @media (max-width: 768px) {
        .content-header h1 { font-size: 2.2rem; letter-spacing: 5px; }
        .expo-details { grid-template-columns: 1fr; padding: 40px 20px; }
        .btn-fullscreen { display: none; }
    }