/**
 * SSS PDF Gallery - Core Styles & 10 Built-in Themes
 * Verzia: 2.1.0
 */

/* ==========================================================================
   1. CORE ŠTRUKTÚRA & LAYOUT
   ========================================================================== */
.document-gallery {
    margin: 1.5rem 0;
    width: 100%;
    box-sizing: border-box;
}

.document-gallery *, .document-gallery *::before, .document-gallery *::after {
    box-sizing: border-box;
}

/* Živý filter ročníkov / vyhľadávanie */
.sss-gallery-filter-wrap {
    margin: 1.5rem 0 2rem 0;
    max-width: 600px;
    position: relative;
}

.sss-gallery-filter-wrap .sss-filter-input-wrap {
    position: relative;
    display: flex;
    align-items: center;
}

.sss-gallery-filter-wrap .sss-filter-icon {
    position: absolute;
    left: 14px;
    width: 20px;
    height: 20px;
    color: #64748b;
    pointer-events: none;
}

.sss-gallery-filter-input {
    width: 100%;
    padding: 12px 64px 12px 44px;
    border: 2px solid #e2e8f0;
    border-radius: 30px;
    font-size: 1rem;
    font-family: inherit;
    background: #ffffff;
    color: #1e293b;
    transition: all 0.25s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
    outline: none;
}

.sss-gallery-filter-input:focus {
    border-color: #0284c7;
    box-shadow: 0 4px 16px rgba(2, 132, 199, 0.15);
}

.sss-filter-clear-btn {
    position: absolute;
    right: 12px;
    background: #f1f5f9;
    border: none;
    border-radius: 50%;
    width: 44px;
    height: 44px;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    color: #64748b;
    font-size: 14px;
    font-weight: bold;
    padding: 0;
}

.sss-filter-clear-btn:hover {
    background: #e2e8f0;
    color: #0f172a;
}

.sss-filter-count {
    margin-top: 6px;
    font-size: 0.85rem;
    color: #64748b;
    padding-left: 14px;
}

/* Stĺpce / Grid */
.document-gallery .document-icon-row {
    display: grid;
    gap: 1.25rem;
    width: 100%;
}

.document-gallery.cols-1 .document-icon-row { grid-template-columns: 1fr; }
.document-gallery.cols-2 .document-icon-row { grid-template-columns: repeat(2, 1fr); }
.document-gallery.cols-3 .document-icon-row { grid-template-columns: repeat(3, 1fr); }
.document-gallery.cols-4 .document-icon-row { grid-template-columns: repeat(4, 1fr); }
.document-gallery.cols-5 .document-icon-row { grid-template-columns: repeat(5, 1fr); }
.document-gallery.cols-6 .document-icon-row { grid-template-columns: repeat(6, 1fr); }

@media (max-width: 1024px) {
    .document-gallery.cols-4 .document-icon-row,
    .document-gallery.cols-5 .document-icon-row,
    .document-gallery.cols-6 .document-icon-row {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .document-gallery.cols-3 .document-icon-row,
    .document-gallery.cols-4 .document-icon-row,
    .document-gallery.cols-5 .document-icon-row,
    .document-gallery.cols-6 .document-icon-row {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 500px) {
    .document-gallery .document-icon-row {
        grid-template-columns: 1fr !important;
        gap: 1rem;
    }
}

/* Základná karta */
.document-gallery .document-icon {
    position: relative;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.document-gallery .document-icon.sss-hidden {
    display: none !important;
}

.document-gallery .document-icon a.sss-main-link {
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.document-gallery .document-thumb-wrap {
    position: relative;
    width: 100%;
    aspect-ratio: 1 / 1.414; /* A4 pomer strán */
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f1f3f5;
}

.document-gallery .document-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease;
}

.document-gallery .document-icon:hover img {
    transform: scale(1.05);
}

/* Štítky (Badges) */
.document-gallery .sss-badges-top {
    position: absolute;
    top: 8px;
    right: 8px;
    display: flex;
    gap: 5px;
    z-index: 2;
    pointer-events: none;
}

.document-gallery .pdf-badge {
    background: rgba(220, 38, 38, 0.92);
    color: #ffffff;
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.6px;
    padding: 3px 7px;
    border-radius: 6px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.25);
    text-transform: uppercase;
    line-height: 1;
}

.document-gallery .filesize-badge {
    background: rgba(15, 23, 42, 0.85);
    color: #ffffff;
    font-size: 0.65rem;
    font-weight: 600;
    padding: 3px 7px;
    border-radius: 6px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.25);
    line-height: 1;
}

/* Názov */
.document-gallery .document-icon .title {
    margin-top: 0.65rem;
    padding: 0.2rem 0.4rem 0.1rem;
    font-weight: 600;
    font-size: 0.92rem;
    line-height: 1.35;
    text-align: center;
    display: block;
    word-break: break-word;
}

/* Lišta nástrojov (Tools) */
.document-gallery .sss-card-tools {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    margin-top: auto;
    padding-top: 0.4rem;
    padding-bottom: 0.2rem;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.document-gallery .sss-tool-btn {
    background: none;
    border: none;
    padding: 4px 6px;
    border-radius: 6px;
    color: #475569;
    min-width: 44px;
    min-height: 44px;
    flex-shrink: 0;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    font-size: 0.75rem;
    line-height: 1;
    position: relative;
}

.document-gallery .sss-tool-btn svg {
    width: 15px;
    height: 15px;
    fill: currentColor;
    stroke: currentColor;
    stroke-width: 0;
}

.document-gallery .sss-tool-btn:hover {
    color: #0284c7;
    background: rgba(2, 132, 199, 0.08);
    transform: translateY(-1px);
}

.document-gallery .sss-tool-btn[data-tip]:hover::after,
.document-gallery .sss-tool-btn[data-tip]:focus-visible::after {
    content: attr(data-tip);
    position: absolute;
    bottom: 120%;
    left: 50%;
    transform: translateX(-50%);
    background: #0f172a;
    color: #ffffff;
    font-size: 0.68rem;
    padding: 3px 7px;
    border-radius: 4px;
    white-space: nowrap;
    pointer-events: none;
    z-index: 10;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

/* Počítadlo stiahnutí */
.document-gallery .sss-download-counter {
    margin-top: 0.2rem;
    font-size: 0.76rem;
    color: #64748b;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
}

.document-gallery .sss-download-counter svg {
    width: 13px;
    height: 13px;
    fill: currentColor;
}

/* Fallback ikona */
.document-gallery .document-thumb-fallback {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    color: #94a3b8;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.document-gallery .document-thumb-fallback svg {
    width: 48px;
    height: 48px;
    fill: #ef4444;
    margin-bottom: 6px;
}

/* Zvýraznenie pri Deep linku */
.document-gallery .document-icon.sss-highlighted {
    animation: sssGlowPulse 2.5s ease-out;
}

@keyframes sssGlowPulse {
    0% { box-shadow: 0 0 0 6px rgba(2, 132, 199, 0.4), 0 20px 40px rgba(0, 0, 0, 0.15); }
    50% { box-shadow: 0 0 0 10px rgba(2, 132, 199, 0.2), 0 20px 40px rgba(0, 0, 0, 0.15); }
    100% { box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08); }
}


/* ==========================================================================
   2. 10 VSTAVANÝCH VZHĽADOV (THEMES)
   ========================================================================== */

/* 1. TÉMA: slovak-speleo (Váš originálny speleologický 3D dizajn) */
.theme-slovak-speleo .document-icon {
    background: #ffffff;
    padding: 0.45rem;
    border-radius: 18px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08), 0 2px 6px rgba(0, 0, 0, 0.04);
    border: 2px solid transparent;
}
.theme-slovak-speleo .document-icon:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.14), 0 6px 12px rgba(0, 0, 0, 0.08);
}
.theme-slovak-speleo .document-thumb-wrap {
    border-radius: 14px;
}
.theme-slovak-speleo .document-icon img {
    border-radius: 14px;
}
.theme-slovak-speleo .document-icon .title {
    color: #1e293b;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
}
.theme-slovak-speleo .document-icon:hover .title {
    color: #0369a1;
}

/* 2. TÉMA: modern-cards (Svetlý minimalistický SaaS štýl) */
.theme-modern-cards .document-icon {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}
.theme-modern-cards .document-icon:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px -4px rgba(0, 0, 0, 0.08);
    border-color: #cbd5e1;
}
.theme-modern-cards .document-thumb-wrap {
    border-radius: 8px;
}
.theme-modern-cards .document-icon img {
    border-radius: 8px;
}
.theme-modern-cards .document-icon .title {
    color: #0f172a;
    font-size: 0.95rem;
}

/* 3. TÉMA: classic-bookcase (Knižničná polica / 3D väzba knihy) */
.theme-classic-bookcase .document-icon {
    background: #fdfbf7;
    padding: 0.6rem;
    border-radius: 6px;
    box-shadow: 5px 5px 15px rgba(0, 0, 0, 0.15), inset 2px 0 4px rgba(0, 0, 0, 0.1);
    border-left: 4px solid #854d0e;
}
.theme-classic-bookcase .document-icon:hover {
    transform: translateY(-6px) rotate(-1deg);
    box-shadow: 10px 15px 25px rgba(0, 0, 0, 0.2);
}
.theme-classic-bookcase .document-thumb-wrap {
    border-radius: 4px;
    box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.05);
}
.theme-classic-bookcase .document-icon .title {
    font-family: Georgia, Cambria, "Times New Roman", Times, serif;
    font-style: italic;
    color: #451a03;
}

/* 4. TÉMA: dark-mode (Elegantný tmavý režim) */
.theme-dark-mode .document-icon {
    background: #1e293b;
    border: 1px solid #334155;
    border-radius: 14px;
    padding: 0.5rem;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
}
.theme-dark-mode .document-icon:hover {
    transform: translateY(-5px);
    border-color: #38bdf8;
    box-shadow: 0 12px 28px rgba(56, 189, 248, 0.2);
}
.theme-dark-mode .document-thumb-wrap {
    background: #0f172a;
    border-radius: 10px;
}
.theme-dark-mode .document-icon .title {
    color: #f1f5f9;
}
.theme-dark-mode .document-icon:hover .title {
    color: #38bdf8;
}
.theme-dark-mode .sss-card-tools {
    border-top-color: #334155;
}
.theme-dark-mode .sss-tool-btn {
    color: #cbd5e1;
}
.theme-dark-mode .sss-tool-btn:hover {
    color: #38bdf8;
    background: rgba(56, 189, 248, 0.12);
}
.theme-dark-mode .sss-download-counter {
    color: #94a3b8;
}

/* 5. TÉMA: minimal-outline (Čisté línie, bez tieňov) */
.theme-minimal-outline .document-icon {
    background: transparent;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    padding: 0.5rem;
}
.theme-minimal-outline .document-icon:hover {
    border-color: #0f172a;
    transform: translateY(-2px);
}
.theme-minimal-outline .document-thumb-wrap {
    border-radius: 4px;
}
.theme-minimal-outline .document-icon .title {
    color: #334155;
    font-weight: 500;
}

/* 6. TÉMA: glassmorphism (Sklenený efekt s rozostreným pozadím) */
.theme-glassmorphism .document-icon {
    background: rgba(255, 255, 255, 0.65);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.7);
    border-radius: 20px;
    padding: 0.6rem;
    box-shadow: 0 8px 32px rgba(31, 38, 135, 0.08);
}
.theme-glassmorphism .document-icon:hover {
    transform: translateY(-6px);
    background: rgba(255, 255, 255, 0.85);
    box-shadow: 0 16px 40px rgba(31, 38, 135, 0.15);
}
.theme-glassmorphism .document-thumb-wrap {
    border-radius: 16px;
}

/* 7. TÉMA: brutalist (Moderný neobrutalizmus s ostrými tieňmi) */
.theme-brutalist .document-icon {
    background: #ffffff;
    border: 3px solid #000000;
    border-radius: 0;
    padding: 0.5rem;
    box-shadow: 5px 5px 0 #000000;
}
.theme-brutalist .document-icon:hover {
    transform: translate(-3px, -3px);
    box-shadow: 8px 8px 0 #000000;
}
.theme-brutalist .document-thumb-wrap {
    border-radius: 0;
    border: 2px solid #000000;
}
.theme-brutalist .document-icon img {
    border-radius: 0;
}
.theme-brutalist .pdf-badge {
    background: #000000;
    border-radius: 0;
    font-weight: 900;
}
.theme-brutalist .document-icon .title {
    font-weight: 800;
    text-transform: uppercase;
    font-size: 0.85rem;
    color: #000000;
}

/* 8. TÉMA: academic-journal (Vedecký a univerzitný štýl) */
.theme-academic-journal .document-icon {
    background: #fafaf9;
    border: 1px solid #d6d3d1;
    border-top: 4px solid #1e3a8a; /* Námornícka modrá */
    border-radius: 4px;
    padding: 0.6rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.04);
}
.theme-academic-journal .document-icon:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.08);
}
.theme-academic-journal .document-thumb-wrap {
    border-radius: 2px;
}
.theme-academic-journal .document-icon .title {
    font-family: "Times New Roman", Times, serif;
    font-size: 1rem;
    color: #1c1917;
}

/* 9. TÉMA: compact-list (Riadkový / zoznamový prehľadný štýl) */
.theme-compact-list .document-icon-row {
    display: flex !important;
    flex-direction: column !important;
    gap: 0.75rem !important;
}
.theme-compact-list .document-icon {
    flex-direction: row;
    align-items: center;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    padding: 0.5rem 1rem;
}
.theme-compact-list .document-icon:hover {
    transform: translateX(6px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
    border-color: #0284c7;
}
.theme-compact-list .document-icon a.sss-main-link {
    flex-direction: row;
    align-items: center;
    width: 100%;
    gap: 1.2rem;
}
.theme-compact-list .document-thumb-wrap {
    width: 60px;
    min-width: 60px;
    aspect-ratio: 1 / 1.414;
    border-radius: 6px;
}
.theme-compact-list .document-icon .title {
    margin-top: 0;
    text-align: left;
    font-size: 1rem;
}
.theme-compact-list .sss-card-tools {
    border-top: none;
    padding-top: 0;
    margin-left: auto;
}

/* 10. TÉMA: vintage-archive (Starý pergamen a historický archív) */
.theme-vintage-archive .document-icon {
    background: #fef3c7;
    border: 2px dashed #b45309;
    border-radius: 8px;
    padding: 0.5rem;
    box-shadow: 3px 3px 10px rgba(180, 83, 9, 0.15);
}
.theme-vintage-archive .document-icon:hover {
    transform: translateY(-4px);
    box-shadow: 6px 6px 15px rgba(180, 83, 9, 0.25);
    background: #fde68a;
}
.theme-vintage-archive .document-thumb-wrap {
    filter: sepia(30%);
    border-radius: 4px;
}
.theme-vintage-archive .document-icon .title {
    font-family: "Courier New", Courier, monospace;
    font-weight: 700;
    color: #78350f;
}
.theme-vintage-archive .sss-download-counter {
    color: #78350f;
}


/* ==========================================================================
   3. MODÁLNE OKNO & NOTIFIKÁCIE
   ========================================================================== */
.sss-modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    max-width: none;
    max-height: none;
    margin: 0;
    border: 0;
    box-sizing: border-box;
    color: #0f172a;
    background: rgba(15, 23, 42, 0.65);
    backdrop-filter: blur(4px);
    z-index: 99999;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    transition: opacity 0.25s ease;
}

.sss-modal-backdrop[open] {
    display: flex;
    opacity: 1;
}

.sss-modal-content {
    background: #ffffff;
    width: 100%;
    max-width: 520px;
    border-radius: 20px;
    padding: 28px;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.25);
    position: relative;
    box-sizing: border-box;
    max-height: calc(100vh - 40px);
    max-height: calc(100dvh - 40px);
    overflow-y: auto;
    transform: translateY(15px);
    transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.sss-modal-backdrop.sss-show .sss-modal-content {
    transform: translateY(0);
}

.sss-modal-close {
    position: absolute;
    top: 16px;
    right: 18px;
    background: #f1f5f9;
    border: none;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    font-size: 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #64748b;
}

.sss-modal-close:hover {
    background: #e2e8f0;
    color: #0f172a;
}

.sss-modal-title {
    margin: 0 0 16px 0;
    font-size: 1.25rem;
    font-weight: 700;
    color: #0f172a;
    padding-right: 40px;
    overflow-wrap: anywhere;
}

.sss-citation-box {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 14px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: 0.85rem;
    color: #334155;
    line-height: 1.5;
    user-select: all;
    word-break: break-word;
    margin-bottom: 16px;
}

.sss-modal-buttons {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.sss-btn-action {
    background: #0369a1;
    color: #ffffff;
    border: none;
    padding: 10px 18px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    text-decoration: none;
}

.sss-btn-action:hover {
    background: #0369a1;
    color: #ffffff;
}

.sss-btn-secondary {
    background: #f1f5f9;
    color: #475569;
}

.sss-btn-secondary:hover {
    background: #e2e8f0;
    color: #0f172a;
}

.sss-qr-wrap {
    text-align: center;
    padding: 10px 0;
}

.sss-qr-canvas-holder {
    display: flex;
    justify-content: center;
    margin-bottom: 15px;
}

.sss-qr-canvas-holder canvas, .sss-qr-canvas-holder img {
    border-radius: 12px;
    padding: 8px;
    background: #ffffff;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
}

.sss-qr-desc {
    font-size: 0.92rem;
    color: #475569;
    line-height: 1.45;
}

.sss-toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(50px);
    background: #0f172a;
    color: #ffffff;
    padding: 12px 22px;
    border-radius: 30px;
    font-size: 0.9rem;
    font-weight: 500;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.25);
    z-index: 100000;
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    pointer-events: none;
}

.sss-toast.sss-show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.sss-modal-backdrop::backdrop {
    background: transparent;
}

.sss-sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.document-gallery a:focus-visible,
.document-gallery button:focus-visible,
.sss-modal-backdrop a:focus-visible,
.sss-modal-backdrop button:focus-visible,
.sss-filter-clear-btn:focus-visible,
.sss-pagination a:focus-visible,
.latest-spravodaj-widget a:focus-visible {
    outline: 3px solid #0369a1;
    outline-offset: -3px;
}

.theme-dark-mode a:focus-visible,
.theme-dark-mode button:focus-visible {
    outline-color: #7dd3fc;
}

.sss-pagination {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 1rem 0;
}

.sss-pagination .page-numbers {
    display: inline-flex;
    min-width: 44px;
    min-height: 44px;
    align-items: center;
    justify-content: center;
    padding: 4px 10px;
    box-sizing: border-box;
}

.sss-pagination .current {
    background: #0369a1;
    color: #fff;
    border-radius: 6px;
}

.latest-spravodaj-widget .spravodaj-thumb {
    aspect-ratio: 1 / 1.414;
    overflow: hidden;
    max-width: 320px;
}

.latest-spravodaj-widget .spravodaj-thumb img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.latest-spravodaj-widget .spravodaj-info,
.latest-spravodaj-widget .spravodaj-title {
    display: block;
}

.sss-citation-hint {
    font-size: 0.85rem;
    color: #475569;
}

.sss-qr-document-title {
    font-weight: 600;
    overflow-wrap: anywhere;
}

@media (max-width: 500px) {
    .theme-compact-list .document-icon {
        flex-wrap: wrap;
    }
    .theme-compact-list .sss-card-tools {
        margin: 8px 0 0;
        width: 100%;
    }
}

@media (prefers-reduced-motion: reduce) {
    .document-gallery *,
    .sss-modal-backdrop,
    .sss-modal-content,
    .sss-toast {
        animation: none !important;
        transition: none !important;
        scroll-behavior: auto !important;
    }
    .document-gallery .document-icon:hover,
    .document-gallery .document-icon:hover img {
        transform: none;
    }
}