:root {
    --jdp-gold: #C9A84C;
    --jdp-gold-light: #E8CC7A;
    --jdp-ink: #050505;
    --jdp-cream: #FAF6EE;
}

html.jdp-preloader-lock,
html.jdp-preloader-lock body,
body.jdp-preloader-active {
    overflow: hidden !important;
}

body.jdp-preloader-active > *:not(#jdp-book-preloader) {
    visibility: hidden !important;
}

#jdp-book-preloader {
    position: fixed !important;
    inset: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    min-height: 100vh !important;
    z-index: 2147483647 !important;
    background:
        radial-gradient(ellipse at center, rgba(201, 168, 76, 0.18) 0%, rgba(13, 13, 13, 1) 48%, #050505 100%) !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transition: opacity 900ms ease, visibility 900ms ease;
}

#jdp-book-preloader.jdp-hide {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.jdp-preloader-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 28px;
    transform: translateY(-12px);
}

.jdp-book {
    width: 150px;
    height: 104px;
    position: relative;
    perspective: 900px;
    transform-style: preserve-3d;
    animation: jdp-book-float 2.6s ease-in-out infinite;
}

.jdp-book-cover,
.jdp-page {
    position: absolute;
    top: 0;
    width: 74px;
    height: 104px;
    border-radius: 4px 10px 10px 4px;
    transform-style: preserve-3d;
    box-shadow: 0 22px 45px rgba(0,0,0,0.45);
}

.jdp-left-cover {
    left: 0;
    transform-origin: right center;
    background: linear-gradient(135deg, var(--jdp-gold-light), var(--jdp-gold), #8B6914);
    border: 1px solid rgba(255,255,255,0.18);
    animation: jdp-left-open 2.4s ease-in-out infinite;
}

.jdp-right-cover {
    right: 0;
    transform-origin: left center;
    background: linear-gradient(225deg, var(--jdp-gold-light), var(--jdp-gold), #8B6914);
    border: 1px solid rgba(255,255,255,0.18);
    animation: jdp-right-open 2.4s ease-in-out infinite;
}

.jdp-page {
    right: 4px;
    width: 68px;
    height: 96px;
    top: 4px;
    background: linear-gradient(90deg, #fffaf0, #e8dcc7);
    transform-origin: left center;
    border: 1px solid rgba(201,168,76,0.25);
}

.jdp-page-1 { animation: jdp-page-flip 2.4s ease-in-out infinite; animation-delay: 0.08s; }
.jdp-page-2 { animation: jdp-page-flip 2.4s ease-in-out infinite; animation-delay: 0.22s; opacity: 0.85; }
.jdp-page-3 { animation: jdp-page-flip 2.4s ease-in-out infinite; animation-delay: 0.36s; opacity: 0.7; }

.jdp-book-spine {
    position: absolute;
    left: 50%;
    top: -4px;
    width: 4px;
    height: 112px;
    transform: translateX(-50%);
    background: linear-gradient(180deg, var(--jdp-gold-light), var(--jdp-gold), #8B6914);
    border-radius: 4px;
    box-shadow: 0 0 22px rgba(201,168,76,0.45);
}

.jdp-loader-text {
    font-family: "Cinzel", "Cormorant Garamond", serif;
    color: var(--jdp-gold-light);
    text-transform: uppercase;
    letter-spacing: 0.28em;
    font-size: 12px;
    font-weight: 600;
    text-align: center;
    animation: jdp-text-pulse 2.4s ease-in-out infinite;
}

@keyframes jdp-left-open {
    0%, 100% { transform: rotateY(0deg); }
    45%, 70% { transform: rotateY(58deg); }
}

@keyframes jdp-right-open {
    0%, 100% { transform: rotateY(0deg); }
    45%, 70% { transform: rotateY(-58deg); }
}

@keyframes jdp-page-flip {
    0% { transform: rotateY(0deg); }
    42% { transform: rotateY(-142deg); }
    70% { transform: rotateY(-142deg); }
    100% { transform: rotateY(0deg); }
}

@keyframes jdp-book-float {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-8px) scale(1.03); }
}

@keyframes jdp-text-pulse {
    0%, 100% { opacity: 0.55; }
    50% { opacity: 1; }
}

@media (max-width: 600px) {
    .jdp-book { width: 120px; height: 84px; }
    .jdp-book-cover { width: 59px; height: 84px; }
    .jdp-page { width: 54px; height: 78px; }
    .jdp-book-spine { height: 90px; }
    .jdp-loader-text {
        font-size: 10px;
        letter-spacing: 0.22em;
        padding: 0 24px;
    }
}