/* Booklet PHP — layout static indexabil (MVC) */

.booklet-php {
    --booklet-viewport-h: calc(
        100dvh - var(--header-height) - var(--footer-height)
        - var(--safe-top) - var(--safe-bottom)
    );
    --booklet-artwork-max: min(72vw, 38dvh, 22rem);
    --booklet-sheet-bg: linear-gradient(
        180deg,
        rgba(12, 10, 8, 0.98) 0%,
        rgba(5, 5, 8, 1) 100%
    );
    --booklet-sheet-radius: 1.35rem;
    --booklet-sheet-border: rgba(196, 160, 85, 0.18);
}

.booklet-php .booklet {
    grid-template-rows: var(--header-height) minmax(0, 1fr) auto;
    width: 100%;
    max-width: 100vw;
}

.booklet-php .booklet__viewport {
    perspective: none;
    min-width: 0;
}

.booklet-php .booklet__stage--static {
    position: relative;
    inset: auto;
    width: 100%;
    height: 100%;
    min-height: 0;
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
}

.booklet-page {
    display: grid;
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    gap: clamp(1rem, 3vw, 2rem);
    width: 100%;
    max-width: 100%;
    min-width: 0;
    min-height: 100%;
    padding: clamp(0.75rem, 2vw, 1.5rem);
    align-items: start;
    position: relative;
    isolation: isolate;
    overflow-x: hidden;
    box-sizing: border-box;
}

.booklet-page__backdrop {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.booklet-page__backdrop-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    margin: auto;
    object-fit: cover;
    object-position: center;
    opacity: 0.34;
    filter: blur(14px) saturate(1.1);
    transform: scale(1.12);
}

.booklet-page__backdrop-scrim {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 10%, rgba(120, 0, 255, 0.08), transparent 42%),
        linear-gradient(180deg, rgba(0, 0, 0, 0.18) 0%, rgba(0, 0, 0, 0.52) 100%);
}

.booklet-page--has-artwork .booklet-page__visual,
.booklet-page--has-artwork .booklet-page__content {
    position: relative;
    z-index: 1;
    min-width: 0;
}

.booklet-page__visual {
    position: sticky;
    top: 0;
    min-width: 0;
}

.booklet-page__content {
    max-width: none;
    min-width: 0;
    width: 100%;
}

.booklet-page__content.page-layout {
    max-width: 100%;
}

.booklet-toc {
    margin: 1.25rem 0 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(196, 160, 85, 0.14);
}

.booklet-toc__title {
    margin: 0 0 0.75rem;
    font-size: 0.72rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--color-gold);
    font-family: var(--font-sans);
    font-weight: 500;
}

.booklet-toc__list {
    margin: 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 0.35rem;
}

.booklet-toc__list a {
    display: flex;
    align-items: baseline;
    gap: 0.65rem;
    color: var(--color-white-muted);
    text-decoration: none;
    font-size: 0.88rem;
    line-height: 1.45;
    transition: color 0.2s ease;
    overflow-wrap: anywhere;
    padding: 0.45rem 0;
    border-bottom: 1px solid rgba(196, 160, 85, 0.08);
}

.booklet-toc__list li:last-child a {
    border-bottom: none;
}

.booklet-toc__list a:hover,
.booklet-toc__list a:focus-visible {
    color: var(--color-gold);
}

.booklet-contents-link {
    display: block;
    margin-top: 0.2rem;
    font-size: 0.62rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-gold);
    text-decoration: none;
    text-align: center;
    white-space: nowrap;
}

.nav-btn--link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: inherit;
    text-decoration: none;
}

.nav-btn--disabled {
    display: inline-block;
    width: 2.5rem;
    height: 2.5rem;
}

/* Desktop — artwork full-height beside content (doar >900px) */
@media (min-width: 901px) {
    .booklet-page:has(.artwork.has-image) {
        grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
        align-items: stretch;
        min-height: var(--booklet-viewport-h);
    }

    .booklet-page:has(.artwork.has-image) .booklet-page__visual {
        position: sticky;
        top: 0;
        display: flex;
        align-items: center;
        justify-content: center;
        height: var(--booklet-viewport-h);
        min-height: min(72dvh, 36rem);
    }

    .booklet-page:has(.artwork.has-image) .page-visual,
    .booklet-page:has(.artwork.has-image) .page-visual__frame {
        width: 100%;
        height: 100%;
        min-height: 0;
    }

    .booklet-page:has(.artwork.has-image) .page-visual__frame {
        display: flex;
        align-items: center;
        justify-content: center;
    }
}

.page-visual__frame:has(.artwork.has-image) .page-visual__emblem {
    display: none;
}

/* ── Tablet & mobile — o coloană: imagine SUS, conținut JOS ── */
@media (max-width: 900px) {
    .booklet-php {
        --header-height: 3rem;
        --footer-height: 4.25rem;
    }

    .booklet-php .booklet__stage--static {
        padding: 0;
        scroll-padding-bottom: 1rem;
    }

    .booklet-page,
    .booklet-page:has(.artwork.has-image) {
        display: flex;
        flex-direction: column;
        gap: 0;
        padding: 0;
        min-height: auto;
        width: 100%;
    }

    .booklet-page__visual {
        position: relative;
        order: -1;
        flex: 0 0 auto;
        width: 100%;
    }

    .booklet-page__content {
        flex: 1 1 auto;
        width: 100%;
    }

    /* Fără blur de fundal pe mobil */
    .booklet-page--has-artwork .booklet-page__backdrop {
        display: none;
    }

    .booklet-page--has-artwork .booklet-page__visual {
        padding: 0;
        margin: 0;
        height: auto;
        min-height: 0;
        max-height: none;
    }

    .booklet-page--has-artwork .booklet-page__visual::after {
        content: '';
        position: absolute;
        inset: auto 0 0;
        height: 30%;
        background: linear-gradient(to bottom, transparent, rgba(5, 5, 8, 0.85));
        pointer-events: none;
        z-index: 2;
    }

    .booklet-page--has-artwork .page-visual,
    .booklet-page--has-artwork .page-visual__frame,
    .booklet-page--has-artwork .artwork.has-image {
        width: 100%;
        max-width: 100%;
        height: auto;
    }

    .booklet-page--has-artwork .page-visual__frame {
        margin: 0;
        padding: 0;
        min-height: 0;
        display: block;
    }

    .booklet-page--has-artwork .artwork__backdrop {
        display: none;
    }

    .booklet-page--has-artwork .artwork__canvas {
        width: 100%;
        max-width: 100%;
        height: auto;
        max-height: min(52dvh, 100vw);
        aspect-ratio: 1;
        margin: 0;
    }

    .booklet-page--has-artwork .artwork__slot {
        object-fit: contain;
        width: 100%;
        height: 100%;
    }

    /* Conținut sub imagine — fără overlap agresiv */
    .booklet-page--has-artwork .booklet-page__content {
        margin-top: 0;
        padding: 1.15rem clamp(1rem, 5vw, 1.35rem) 2rem;
        background: var(--booklet-sheet-bg);
        border-radius: var(--booklet-sheet-radius) var(--booklet-sheet-radius) 0 0;
        border-top: 1px solid var(--booklet-sheet-border);
        box-shadow: 0 -8px 32px rgba(0, 0, 0, 0.35);
    }

    .booklet-page:not(.booklet-page--has-artwork) .booklet-page__content {
        margin-top: 0;
        border-radius: 0;
        border-top: none;
        box-shadow: none;
        padding: 1.25rem clamp(1rem, 5vw, 1.35rem) 2rem;
        min-height: calc(var(--booklet-viewport-h) - 1rem);
    }

    .booklet-page .page-visual__frame:not(:has(.artwork.has-image)) {
        width: min(100%, 16rem);
        margin: 1.25rem auto 0;
        padding: 0.5rem;
    }

    .booklet-page__content .section-title,
    .booklet-page__content .display-title {
        font-size: clamp(1.5rem, 6.5vw, 2.15rem);
        line-height: 1.12;
    }

    .booklet-page__content .lead,
    .booklet-page__content .body-text {
        font-size: clamp(0.92rem, 3.8vw, 1.02rem);
        line-height: 1.65;
    }

    .booklet-php .booklet__header {
        padding-inline: clamp(0.85rem, 4vw, 1.25rem);
        border-bottom-color: rgba(196, 160, 85, 0.12);
    }

    .booklet-php .booklet__footer {
        padding-inline: clamp(0.85rem, 4vw, 1.25rem);
        padding-block: 0.7rem calc(0.7rem + var(--safe-bottom));
        border-top-color: rgba(196, 160, 85, 0.15);
        box-shadow: 0 -10px 32px rgba(0, 0, 0, 0.38);
        background: linear-gradient(to top, rgba(5, 5, 8, 0.98), rgba(5, 5, 8, 0.88));
    }

    .booklet-php .booklet__nav-group--center {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 0.15rem;
    }

    .booklet-contents-link {
        font-size: 0.58rem;
        letter-spacing: 0.14em;
        opacity: 0.9;
    }

    .booklet-page--track .booklet-page__content {
        padding-top: 1.15rem;
    }
}

/* ── Small phones ── */
@media (max-width: 480px) {
    .booklet-php {
        --header-height: 2.85rem;
        --booklet-sheet-radius: 1.15rem;
    }

    .booklet-page__content {
        padding: 1.2rem 1rem 1.75rem;
    }

    .booklet-php .booklet__brand {
        max-width: 50vw;
        font-size: 0.76rem;
        letter-spacing: 0.11em;
    }

    .booklet-php .booklet-legal {
        display: none;
    }

    .booklet-php .booklet__footer {
        grid-template-columns: auto 1fr auto;
        gap: 0.4rem;
    }

    .booklet-php .page-indicator {
        font-size: 0.64rem;
        letter-spacing: 0.16em;
    }

    .booklet-page--has-artwork .artwork__canvas {
        max-height: min(48dvh, 100vw);
    }

    .page-layout--cover-text .display-title {
        font-size: clamp(1.4rem, 8.5vw, 1.85rem);
    }

    .booklet-toc__list a {
        font-size: 0.86rem;
        padding: 0.4rem 0;
    }

    .booklet-page--cover .btn--gold {
        width: 100%;
        max-width: none;
        margin-top: 0.75rem;
    }
}

@media (max-width: 360px) {
    .booklet-php .nav-btn,
    .nav-btn--disabled {
        width: 2.2rem;
        height: 2.2rem;
    }

    .booklet-php .booklet-exit {
        width: 2.2rem;
        height: 2.2rem;
    }
}

/* ── Landscape phones — tot o coloană, imagine compactă sus ── */
@media (max-height: 520px) and (orientation: landscape) and (max-width: 900px) {
    .booklet-php {
        --header-height: 2.5rem;
    }

    .booklet-page--has-artwork .artwork__canvas {
        max-height: min(38dvh, 55vw);
    }

    .booklet-page--has-artwork .booklet-page__content {
        padding: 0.85rem 1rem 1.25rem;
    }

    .booklet-php .booklet__footer {
        padding-block: 0.45rem calc(0.45rem + var(--safe-bottom));
    }
}