/* ================================
   CATALOG PAGE — STANDALONE VIEWER
================================ */

/* Hide site navigation and footer on this page */
body:has(.catalog-page-layout) .navigation,
body:has(.catalog-page-layout) .footer {
    display: none !important;
}

/* Global dark background — prevents white flash below content */
body:has(.catalog-page-layout) {
    background: #1a1a1a;
}

/* Full-viewport layout — no nav to clear */
.catalog-page-layout {
    position: fixed;
    inset: 0;
    display: flex;
    flex-direction: column;
    z-index: 1;
}

/* ---- DARK HEADER BAR ---- */
.catalog-header-bar {
    flex-shrink: 0;
    background: #323639;
    border-bottom: 1px solid #3e4245;
    height: 42px;
    display: flex;
    align-items: center;
}

.catalog-header-content {
    width: 100%;
    padding: 0 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    position: relative;
}

/*
 * Override global styles.css which applies heavy styling to bare
 * `button` (0-0-1) and `input[type="text"]` (0-1-1) selectors.
 * We use compound selectors (button.class = 0-1-1) to guarantee
 * our rules win regardless of stylesheet load order.
 */

/* Back Button — override global button styles */
button.catalog-back-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    min-height: 0;
    border-radius: 6px;
    border: none;
    background: transparent;
    color: #d1d5db;
    cursor: pointer;
    padding: 0;
    flex-shrink: 0;
    z-index: auto;
    box-shadow: none;
    transition: background-color 0.15s ease, color 0.15s ease;
}

button.catalog-back-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
}

button.catalog-back-btn:active {
    background: rgba(255, 255, 255, 0.15);
}

button.catalog-back-btn:focus-visible {
    outline: 2px solid #60a5fa;
    outline-offset: 2px;
    box-shadow: none;
}

.catalog-back-btn svg {
    flex-shrink: 0;
}

/* Page Title */
.catalog-page-title {
    font-size: 0.875rem;
    font-weight: 500;
    color: #e5e7eb;
    margin: 0;
    letter-spacing: 0.01em;
    white-space: nowrap;
    flex: 1;
}

/* Find-on-page hint */
.catalog-find-hint {
    font-size: 0.75rem;
    color: #9ca3af;
    white-space: nowrap;
    letter-spacing: 0.01em;
}

/* Download Button (ghost/outline on dark — <a> tag, not button) */
.catalog-download-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.3125rem 0.75rem;
    background: transparent;
    color: #d1d5db;
    text-decoration: none;
    border-radius: 5px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    font-size: 0.8125rem;
    font-weight: 500;
    transition: all 0.15s ease;
    white-space: nowrap;
    flex-shrink: 0;
}

.catalog-download-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.35);
    color: #ffffff;
}

.catalog-download-btn:active {
    background: rgba(255, 255, 255, 0.12);
}

.catalog-download-btn:focus-visible {
    outline: 2px solid #60a5fa;
    outline-offset: 2px;
}

.catalog-download-btn svg {
    flex-shrink: 0;
}

/* ---- MAIN CONTENT ---- */
.catalog-main {
    flex: 1;
    min-height: 0;
    overflow: hidden;
}

/* ---- DESKTOP PDF VIEWER ---- */
.catalog-viewer-wrapper {
    width: 100%;
    height: 100%;
    position: relative;
    background: #525659;
}

/* Loading Placeholder */
.catalog-loading-placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: #525659;
    z-index: 2;
}

.catalog-cover-loading {
    max-width: 280px;
    width: 100%;
    height: auto;
    border-radius: 4px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.catalog-loading-text {
    color: #9ca3af;
    font-size: 0.875rem;
    margin-top: 1rem;
    animation: catalog-pulse 1.5s ease-in-out infinite;
}

@keyframes catalog-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* PDF iframe */
.catalog-viewer {
    width: 100%;
    height: 100%;
    position: relative;
}

.catalog-viewer iframe {
    width: 100%;
    height: 100%;
    border: none;
    display: block;
    background: #525659;
}

/* ---- MOBILE EXPERIENCE ---- */
.catalog-mobile-section {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1.5rem;
    background: transparent;
}

.catalog-mobile-content {
    max-width: 380px;
    width: 100%;
    text-align: center;
}

.catalog-mobile-cover {
    width: 65%;
    max-width: 260px;
    height: auto;
    border-radius: 6px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.08);
    margin: 0 auto 1.25rem;
    display: block;
}

.catalog-mobile-edition {
    font-size: 0.9375rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.5);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 2rem;
}

.catalog-mobile-download-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.625rem;
    padding: 0.875rem 2rem;
    text-decoration: none;
    border-radius: 8px;
    font-size: 0.9375rem;
    font-weight: 600;
    background: #ffffff;
    color: #1a1a1a;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    transition: all 0.2s ease;
}

.catalog-mobile-download-btn svg {
    flex-shrink: 0;
}

.catalog-mobile-download-btn:hover {
    background: #f0f0f0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.catalog-mobile-download-btn:active {
    transform: scale(0.98);
}

/* ---- VISIBILITY UTILITIES ---- */
.desktop-only {
    display: block;
}

.mobile-only {
    display: none;
}

span.desktop-only {
    display: inline;
}

@media (max-width: 768px) {
    .desktop-only {
        display: none !important;
    }

    span.desktop-only {
        display: none !important;
    }

    .mobile-only {
        display: block !important;
    }
}

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
    .catalog-header-bar {
        height: 40px;
    }

    button.catalog-back-btn {
        width: 28px;
        height: 28px;
    }

    .catalog-back-btn svg {
        width: 18px;
        height: 18px;
    }

    .catalog-page-title {
        display: none;
    }

    .catalog-find-hint {
        display: none;
    }

    .catalog-download-btn {
        padding: 0.25rem 0.5rem;
        font-size: 0.75rem;
    }

    .catalog-download-btn svg {
        width: 14px;
        height: 14px;
    }
}

@media (max-width: 480px) {
    .catalog-download-btn span {
        display: none;
    }

    .catalog-download-btn {
        padding: 0.375rem;
    }
}

/* Landscape mobile */
@media (max-height: 500px) and (max-width: 768px) {
    .catalog-mobile-section {
        padding: 1rem;
    }

    .catalog-mobile-cover {
        width: 30%;
        max-width: 120px;
        margin-bottom: 0.75rem;
    }

    .catalog-mobile-edition {
        margin-bottom: 1rem;
        font-size: 0.8125rem;
    }

    .catalog-mobile-download-btn {
        padding: 0.625rem 1rem;
        font-size: 0.8125rem;
    }
}