*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --bg:     #f2f2f2;
    --header: #ffffff;
    --accent: #5b6ef5;
    --text:   #1a1a1a;
    --muted:  #888;
    --border: #e0e0e0;
    --page:   #161618;
    --shadow: rgba(0,0,0,0.35);
    --grad:   #e8e8e8;
    --font: 'Segoe UI', system-ui, sans-serif;
}

/* Samo viewer stranica je full-screen */
body.viewer-page { height: 100%; overflow: hidden; }
html:has(body.viewer-page) { height: 100%; overflow: hidden; }

body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font);
    display: flex;
    flex-direction: column;
}

/* ─── Header ────────────────────────────────────────────────────────────── */

.viewer-header {
    background: var(--header);
    border-bottom: 1px solid var(--border);
    padding: 0 20px;
    height: 52px;
    display: flex;
    align-items: center;
    gap: 16px;
    flex-shrink: 0;
    z-index: 10;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
    position: relative;
}

/* MURAN-O brending - centrirano u traci, vidljivo na svakoj strani. */
.viewer-brand {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    align-items: center;
    gap: 9px;
    pointer-events: none;
    font-family: system-ui, 'Segoe UI', sans-serif;
    font-weight: 700;
    letter-spacing: 0.16em;
    font-size: 14px;
    color: #d4af37;
}
.viewer-brand img {
    height: 26px;
    width: 26px;
    border-radius: 5px;
    display: block;
}
@media (max-width: 640px) {
    .viewer-brand span { display: none; }
}

.back-link {
    color: var(--muted);
    text-decoration: none;
    font-size: 13px;
    transition: color 0.15s;
    white-space: nowrap;
}

.back-link:hover { color: var(--accent); }

.catalog-title {
    font-size: 15px;
    font-weight: 600;
    flex: 1;
    color: var(--text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.viewer-tools {
    display: flex;
    align-items: center;
    gap: 6px;
}

.tool-btn {
    background: none;
    border: 1px solid var(--border);
    color: var(--muted);
    width: 34px;
    height: 34px;
    border-radius: 8px;
    font-size: 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s;
}

.tool-btn:hover { border-color: var(--accent); color: var(--accent); }

/* ─── Main ──────────────────────────────────────────────────────────────── */

.viewer-main {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px 72px;
    overflow: hidden;
    background: var(--grad);
    position: relative;
}

/* ─── Navigation Arrows ─────────────────────────────────────────────────── */

.nav-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: rgba(255,255,255,0.93);
    color: #1a1a1a;
    border: none;
    font-size: 30px;
    cursor: pointer;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.15s, transform 0.15s;
    line-height: 1;
    box-shadow: 0 3px 16px rgba(0,0,0,0.35);
}

.nav-arrow:hover:not(:disabled) {
    background: #fff;
    transform: translateY(-50%) scale(1.1);
}

.nav-arrow:disabled {
    opacity: 0.25;
    cursor: default;
    transform: translateY(-50%);
}

.nav-prev { left: 14px; }
.nav-next { right: 14px; }

/* ─── Flipbook ──────────────────────────────────────────────────────────── */

#flipbook-container {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

#flipbook {
    border-radius: 3px;
    transition: transform 0.85s ease;
}

/* Senka na svakoj strani (ne na celom 2-stranom bloku) -> prazna polovina pored
   korice je providna, pa korica izgleda kao samostalna strana (kao kod heyzine). */
.page { background: var(--page); box-shadow: 0 8px 40px var(--shadow); position: relative; }

/* Opis materijala - panel dole-levo NA svakoj strani (i leva i desna u spreadu). */
.page-cap {
    position: absolute;
    left: 18px;
    bottom: 18px;
    z-index: 5;
    max-width: 62%;
    padding: 10px 14px;
    background: rgba(12, 13, 18, 0.72);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    border-radius: 10px;
    color: #fff;
    font-family: system-ui, 'Segoe UI', sans-serif;
    line-height: 1.4;
    box-shadow: 0 4px 18px rgba(0, 0, 0, 0.35);
}
.page-cap .pc-title { font-size: 15px; font-weight: 700; margin-bottom: 4px; letter-spacing: -0.01em; }
.page-cap .pc-line  { font-size: 11.5px; opacity: 0.82; }
.page-cap .pc-line + .pc-line { margin-top: 1px; }

.page img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    pointer-events: none;
    user-select: none;
}

/* ─── Footer ────────────────────────────────────────────────────────────── */

.viewer-footer {
    background: var(--header);
    border-top: 1px solid var(--border);
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

#pageInfo {
    font-size: 13px;
    color: var(--muted);
    letter-spacing: 0.04em;
}

/* ─── Home ──────────────────────────────────────────────────────────────── */

.home-header {
    background: #fff;
    border-bottom: 1px solid #e8e8e8;
    padding: 0 32px;
    height: 60px;
    display: flex;
    align-items: center;
    flex-shrink: 0;
    box-shadow: 0 1px 4px rgba(0,0,0,0.05);
}

.home-logo {
    font-size: 20px;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: -0.02em;
}

.home-main {
    flex: 1;
    padding: 48px 32px;
    max-width: 1100px;
    margin: 0 auto;
    width: 100%;
    overflow-y: auto;
    background: #f7f8fc;
}

.home-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
}

.home-card {
    background: #fff;
    border: 1px solid #e8e8e8;
    border-radius: 14px;
    padding: 28px 22px;
    text-decoration: none;
    color: #1a1a1a;
    transition: all 0.2s;
    display: block;
    box-shadow: 0 1px 4px rgba(0,0,0,0.05);
}

.home-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(91,110,245,0.12);
}

.home-card-icon { font-size: 34px; margin-bottom: 14px; }
.home-card h2 { font-size: 15px; font-weight: 600; margin-bottom: 8px; }
.home-card p { font-size: 13px; color: #888; line-height: 1.5; }

/* ─── Dark theme overrides — header/footer ostaju tamniji ───────────────── */

body[data-theme="dark-minimal"] .viewer-header,
body[data-theme="dark-minimal"] .viewer-footer,
body[data-theme="midnight"] .viewer-header,
body[data-theme="midnight"] .viewer-footer,
body[data-theme="luxury-gold"] .viewer-header,
body[data-theme="luxury-gold"] .viewer-footer,
body[data-theme="ocean"] .viewer-header,
body[data-theme="ocean"] .viewer-footer,
body[data-theme="rose"] .viewer-header,
body[data-theme="rose"] .viewer-footer,
body[data-theme="forest"] .viewer-header,
body[data-theme="forest"] .viewer-footer,
body[data-theme="sunset"] .viewer-header,
body[data-theme="sunset"] .viewer-footer {
    background: var(--header);
    border-color: var(--border);
    color: var(--text);
}

body[data-theme="dark-minimal"] .catalog-title,
body[data-theme="midnight"] .catalog-title,
body[data-theme="luxury-gold"] .catalog-title,
body[data-theme="ocean"] .catalog-title,
body[data-theme="rose"] .catalog-title,
body[data-theme="forest"] .catalog-title,
body[data-theme="sunset"] .catalog-title { color: var(--text); }

body[data-theme="dark-minimal"] .back-link,
body[data-theme="midnight"] .back-link,
body[data-theme="luxury-gold"] .back-link,
body[data-theme="ocean"] .back-link,
body[data-theme="rose"] .back-link,
body[data-theme="forest"] .back-link,
body[data-theme="sunset"] .back-link { color: var(--muted); }

body[data-theme="dark-minimal"] .tool-btn,
body[data-theme="midnight"] .tool-btn,
body[data-theme="luxury-gold"] .tool-btn,
body[data-theme="ocean"] .tool-btn,
body[data-theme="rose"] .tool-btn,
body[data-theme="forest"] .tool-btn,
body[data-theme="sunset"] .tool-btn { color: var(--muted); border-color: var(--border); }

body[data-theme="dark-minimal"] #pageInfo,
body[data-theme="midnight"] #pageInfo,
body[data-theme="luxury-gold"] #pageInfo,
body[data-theme="ocean"] #pageInfo,
body[data-theme="rose"] #pageInfo,
body[data-theme="forest"] #pageInfo,
body[data-theme="sunset"] #pageInfo { color: var(--muted); }

/* ── Cinema ────────────────────────────────────────────────────────────── */
.cinema-wrap {
    position: relative;
    width: 100%;
    height: 100%;
}
.cinema-slide {
    position: absolute;
    inset: 0;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    opacity: 0;
    transition: opacity 0.7s ease;
}
.cinema-slide.active { opacity: 1; }

/* ── Slide ─────────────────────────────────────────────────────────────── */
.slide-wrap {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
}
.slide-track {
    display: flex;
    height: 100%;
    flex: 1;
    transition: transform 0.42s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform;
}
.slide-frame {
    min-width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg);
}
.slide-frame img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    box-shadow: 0 8px 48px var(--shadow);
    border-radius: 2px;
    pointer-events: none;
    user-select: none;
}
.slide-dots {
    display: flex;
    justify-content: center;
    gap: 6px;
    padding: 10px 0 4px;
    flex-shrink: 0;
}
.slide-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--border);
    border: none;
    cursor: pointer;
    transition: background 0.2s, transform 0.2s;
    padding: 0;
}
.slide-dot.active {
    background: var(--accent);
    transform: scale(1.3);
}

/* ── Scroll ─────────────────────────────────────────────────────────────── */
.scroll-wrap {
    width: 100%;
    height: 100%;
    overflow-y: auto;
    scroll-behavior: smooth;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 32px;
    padding: 24px 0;
}
.scroll-wrap::-webkit-scrollbar { width: 4px; }
.scroll-wrap::-webkit-scrollbar-track { background: transparent; }
.scroll-wrap::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }
.scroll-frame {
    position: relative;
    max-width: min(90%, 640px);
    width: 100%;
    flex-shrink: 0;
}
.scroll-frame img {
    width: 100%;
    display: block;
    border-radius: 4px;
    box-shadow: 0 8px 48px var(--shadow);
    pointer-events: none;
    user-select: none;
}
.scroll-badge {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background: rgba(0,0,0,0.55);
    color: #fff;
    font-size: 11px;
    padding: 3px 8px;
    border-radius: 20px;
    backdrop-filter: blur(4px);
}

/* ── Strip ──────────────────────────────────────────────────────────────── */
.strip-wrap {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
}
.strip-main {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 16px;
}
.strip-main img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    box-shadow: 0 8px 48px var(--shadow);
    border-radius: 2px;
    transition: opacity 0.25s ease;
    pointer-events: none;
    user-select: none;
}
.strip-bar {
    height: 90px;
    display: flex;
    gap: 6px;
    overflow-x: auto;
    padding: 8px 16px;
    background: rgba(0,0,0,0.3);
    border-top: 1px solid var(--border);
    flex-shrink: 0;
    scroll-behavior: smooth;
}
.strip-bar::-webkit-scrollbar { height: 3px; }
.strip-bar::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 2px; }
.strip-thumb {
    height: 100%;
    width: auto;
    object-fit: cover;
    border-radius: 3px;
    cursor: pointer;
    opacity: 0.5;
    transition: opacity 0.2s, transform 0.2s, border 0.2s;
    border: 2px solid transparent;
    flex-shrink: 0;
    pointer-events: all;
    user-select: none;
}
.strip-thumb:hover { opacity: 0.8; }
.strip-thumb.active {
    opacity: 1;
    border-color: var(--accent);
    transform: scaleY(1.05);
}

/* ── Zoom ──────────────────────────────────────────────────────────────── */
.zoom-wrap { position: relative; width: 100%; height: 100%; }
.zoom-slide {
    position: absolute; inset: 0;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    opacity: 0;
    transform: scale(1.12);
    transition: opacity 0.5s ease, transform 0.5s ease;
    pointer-events: none;
}
.zoom-slide.active  { opacity: 1; transform: scale(1); pointer-events: all; }
.zoom-slide.leaving { opacity: 0; transform: scale(0.9); }

/* ── Cards ─────────────────────────────────────────────────────────────── */
.cards-wrap {
    width: 100%; height: 100%;
    display: flex; align-items: center; justify-content: center;
    position: relative;
}
.card-item {
    position: absolute;
    transition: transform 0.32s cubic-bezier(0.4,0,0.2,1), opacity 0.32s ease;
    border-radius: 8px; overflow: hidden;
    box-shadow: 0 12px 40px rgba(0,0,0,0.4);
    max-width: min(75vw, 480px); max-height: 80vh;
}
.card-item img { display: block; width: 100%; height: 100%; object-fit: contain; pointer-events: none; user-select: none; }
.card-pos-0 { transform: scale(1) translateY(0); z-index: 3; }
.card-pos-1 { transform: scale(0.94) translateY(20px); z-index: 2; opacity: 0.75; }
.card-pos-2 { transform: scale(0.88) translateY(40px); z-index: 1; opacity: 0.5; }
.card-swipe-out { transform: translateX(-130%) rotate(-18deg) !important; opacity: 0 !important; transition-duration: 0.32s !important; }

/* ── Wipe ──────────────────────────────────────────────────────────────── */
.wipe-wrap { position: relative; width: 100%; height: 100%; }
.wipe-layer {
    position: absolute; inset: 0;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
}

/* ── Coverflow ──────────────────────────────────────────────────────────── */
.cf-wrap {
    width: 100%; height: 100%;
    display: flex; align-items: center; justify-content: center;
    perspective: 1400px; position: relative;
}
.cf-item {
    position: absolute;
    transition: transform 0.42s cubic-bezier(0.4,0,0.2,1), opacity 0.42s ease, z-index 0s;
    border-radius: 4px; overflow: hidden; cursor: pointer;
}
.cf-item img { width: min(60vw, 680px); max-height: 82vh; object-fit: contain; display: block; pointer-events: none; user-select: none; }
.cf-hidden { opacity: 0; pointer-events: none; transform: translateX(0) scale(0); }
.cf-c  { transform: translateX(0)    rotateY(0deg)   scale(1);    z-index: 5; opacity: 1;   box-shadow: 0 20px 80px rgba(0,0,0,0.8); }
.cf-p1 { transform: translateX(-52%) rotateY(40deg)  scale(0.78); z-index: 4; opacity: 0.72; }
.cf-p2 { transform: translateX(-88%) rotateY(52deg)  scale(0.58); z-index: 3; opacity: 0.4; }
.cf-n1 { transform: translateX( 52%) rotateY(-40deg) scale(0.78); z-index: 4; opacity: 0.72; }
.cf-n2 { transform: translateX( 88%) rotateY(-52deg) scale(0.58); z-index: 3; opacity: 0.4; }

/* ── Fade Up ────────────────────────────────────────────────────────────── */
.fadeup-wrap { position: relative; width: 100%; height: 100%; }
.fadeup-slide {
    position: absolute; inset: 0;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    opacity: 0;
    transform: translateY(36px);
    transition: opacity 0.48s ease, transform 0.48s cubic-bezier(0.22,1,0.36,1);
    pointer-events: none;
}
.fadeup-slide.active  { opacity: 1; transform: translateY(0); pointer-events: all; }
.fadeup-slide.leaving { opacity: 0; transform: translateY(-28px); }

/* ── Spread (extra shadow between pages) ──────────────────────────────── */
body[data-theme="spread"] #flipbook {
    box-shadow: 0 12px 60px rgba(0,0,0,0.25);
}
body[data-theme="spread"] .viewer-main {
    background: var(--grad);
}

/* ── Dark overrides za nove dizajne ──────────────────────────────────── */
body[data-theme="cinema"] .viewer-header,
body[data-theme="cinema"] .viewer-footer,
body[data-theme="scroll"] .viewer-header,
body[data-theme="scroll"] .viewer-footer,
body[data-theme="strip"] .viewer-header,
body[data-theme="strip"] .viewer-footer {
    background: var(--header);
    border-color: var(--border);
    color: var(--text);
}
body[data-theme="cinema"] .catalog-title,
body[data-theme="cinema"] .back-link,
body[data-theme="cinema"] #pageInfo,
body[data-theme="scroll"] .catalog-title,
body[data-theme="scroll"] .back-link,
body[data-theme="scroll"] #pageInfo,
body[data-theme="strip"] .catalog-title,
body[data-theme="strip"] .back-link,
body[data-theme="strip"] #pageInfo { color: var(--text); }
body[data-theme="cinema"] .back-link,
body[data-theme="scroll"] .back-link,
body[data-theme="strip"] .back-link { color: var(--muted); }
body[data-theme="cinema"] .tool-btn,
body[data-theme="scroll"] .tool-btn,
body[data-theme="strip"] .tool-btn { color: var(--muted); border-color: var(--border); }

/* ─── Misc ──────────────────────────────────────────────────────────────── */

.no-pages {
    color: var(--muted);
    text-align: center;
    font-size: 15px;
    padding: 80px 0;
}

/* ─── Mobile ────────────────────────────────────────────────────────────── */

@media (max-width: 600px) {
    .viewer-header { padding: 0 12px; }
    .viewer-main { padding: 10px 6px; }            /* puna sirina za plocu */
    .nav-prev { left: 4px; }
    .nav-next { right: 4px; }
    .nav-arrow { width: 34px; height: 34px; font-size: 18px; opacity: 0.88; }
    .home-main { padding: 24px 16px; }
    /* opis manji da ne prekriva malu plocu */
    .page-cap { left: 7px; bottom: 7px; padding: 6px 9px; max-width: 80%; border-radius: 8px; }
    .page-cap .pc-title { font-size: 12px; margin-bottom: 2px; }
    .page-cap .pc-line  { font-size: 10px; }
}

/* ── Opis materijala (panel levo, kao u PDF-u) ─────────────────────────────── */
.page-caption {
    position: fixed;
    left: 28px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 60;
    max-width: 280px;
    padding: 18px 20px;
    background: rgba(12, 13, 18, 0.72);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.10);
    border-radius: 14px;
    color: #fff;
    font-family: system-ui, 'Segoe UI', sans-serif;
    line-height: 1.5;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
    opacity: 0;
    transition: opacity 0.35s ease;
    pointer-events: none;
}
.page-caption.show { opacity: 1; }
.page-caption .pc-title {
    font-size: 19px;
    font-weight: 700;
    letter-spacing: -0.01em;
    margin-bottom: 10px;
}
.page-caption .pc-line {
    font-size: 13px;
    opacity: 0.82;
}
.page-caption .pc-line + .pc-line { margin-top: 2px; }

@media (max-width: 900px) {
    .page-caption {
        left: 12px;
        right: 12px;
        top: auto;
        bottom: 84px;
        transform: none;
        max-width: none;
        padding: 12px 16px;
    }
    .page-caption .pc-title { font-size: 16px; margin-bottom: 6px; }
}