/* ── catalog viewer ── */

/* Prevent the wide PDF canvases from ever pushing the body past the viewport
   width. If the body overflows, the fixed-position navbar (whose containing
   block becomes <main> once GSAP animates it) stretches with the body and the
   right-side icons get shoved off the edge on narrow screens. */
html,
body {
    overflow-x: clip;
}

.catalog-viewer {
    background: #0a0a0a;
    color: #fff;
    font-family: "Product-Sans", sans-serif;
    padding-top: 72px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: clip;
    max-width: 100vw;
}

.catalog-viewer-header {
    display: flex;
    justify-content: center;
    padding: 1.25rem 1.5rem 0.75rem;
}

.catalog-viewer-title {
    margin: 0;
    font-size: clamp(0.95rem, 1.4vw, 1.15rem);
    font-weight: 700;
    letter-spacing: 0.18em;
    text-align: center;
    text-transform: uppercase;
    color: #fff;
}

.catalog-viewer-stage {
    flex: 1;
    position: relative;
    padding: 1rem 1.25rem 3rem;
    max-width: 100%;
    box-sizing: border-box;
}

.catalog-viewer-pages {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    width: 100%;
    max-width: 1600px;
    margin: 0 auto;
    box-sizing: border-box;
}

.catalog-viewer-page {
    display: inline-block;
    background: #fff;
    box-shadow: 0 18px 60px rgba(0, 0, 0, 0.45), 0 4px 14px rgba(0, 0, 0, 0.35);
    border-radius: 4px;
    overflow: hidden;
    line-height: 0;
    max-width: 100%;
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.45s ease, transform 0.45s ease;
}

.catalog-viewer-page.is-ready {
    opacity: 1;
    transform: translateY(0);
}

.catalog-viewer-page canvas {
    display: block;
    max-width: 100%;
    height: auto;
    user-select: none;
    -webkit-user-drag: none;
}

.catalog-viewer-loading {
    position: fixed;
    inset: auto 0 0 0;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.85rem;
    color: rgba(255, 255, 255, 0.85);
    font-size: 1rem;
    letter-spacing: 0.06em;
    pointer-events: none;
    z-index: 1;
}

.catalog-viewer-loading[hidden] {
    display: none;
}

.catalog-viewer-loading.is-error {
    color: #ff8585;
}

.catalog-viewer-spinner {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.18);
    border-top-color: #fff;
    animation: catalog-spin 0.8s linear infinite;
}

.catalog-viewer-loading.is-error .catalog-viewer-spinner {
    display: none;
}

@keyframes catalog-spin {
    to { transform: rotate(360deg); }
}

/* ── responsive ── */

@media (max-width: 768px) {
    .catalog-viewer {
        padding-top: 64px;
    }

    .catalog-viewer-header {
        padding: 0.85rem 1rem 0.5rem;
    }

    .catalog-viewer-title {
        font-size: 0.85rem;
        letter-spacing: 0.14em;
    }

    .catalog-viewer-stage {
        padding: 0.75rem 0.75rem 2rem;
    }

    .catalog-viewer-pages {
        gap: 1rem;
    }
}

@media (max-width: 540px) {
    .catalog-viewer {
        padding-top: 56px;
    }

    .catalog-viewer-stage {
        padding: 0.5rem 0.5rem 1.5rem;
    }
}

@media (min-width: 1920px) {
    .catalog-viewer {
        padding-top: 80px;
    }
}