.book {
    transform-style: preserve-3d;
    position: relative;
    height: 400px;
    cursor: pointer;
    backface-visibility: visible;
}

.front, .back, .page1, .page2, .page3, .page4, .page5, .page6 {
    transform-style: preserve-3d;
    position: absolute;
    width: 400px;
    height: 100%;
    top: 0;
    left: 0;
    transform-origin: left center;
    transition: transform .5s ease-in-out, box-shadow .35s ease-in-out;
}

.front, .back {
    background: #448c74;
}

.front, .page1, .page3, .page5 {
    border-bottom-right-radius: .5em;
    border-top-right-radius: .5em;
}

.back, .page2, .page4, .page6 {
    border-bottom-right-radius: .5em;
    border-top-right-radius: .5em;
}

.front {
    animation: rotate_front 1.3s linear;
    animation-play-state: paused;
    animation-delay: calc(var(--scroll) * -1.3s);
    animation-fill-mode: forwards;
}

.page1 {
    background: #efefef;
    animation: rotate_page1 1.3s linear;
    animation-play-state: paused;
    animation-delay: calc(var(--scroll) * -1.3s);
    animation-fill-mode: forwards;
}

.page2 {
    background: #efefef;
    animation: rotate_page2 1.3s linear;
    animation-play-state: paused;
    animation-delay: calc(var(--scroll) * -1.3s);
    animation-fill-mode: forwards;
}

.page3 {
    background: #f5f5f5;
    animation: rotate_page3 1.3s linear;
    animation-play-state: paused;
    animation-delay: calc(var(--scroll) * -1.3s);
    animation-fill-mode: forwards;
}

.page4 {
    background: #f5f5f5;
    animation: rotate_page4 1.3s linear;
    animation-play-state: paused;
    animation-delay: calc(var(--scroll) * -1.3s);
    animation-fill-mode: forwards;
}

.page5 {
    padding: 1rem;
    background: #fafafa;
    animation: rotate_page5 1.3s linear;
    animation-play-state: paused;
    animation-delay: calc(var(--scroll) * -1.3s);
    animation-fill-mode: forwards;
}


.page6 {
    background: #fdfdfd;
    animation: rotate_page6 1.3s linear;
    animation-play-state: paused;
    animation-delay: calc(var(--scroll) * -1.3s);
    animation-fill-mode: forwards;
}

.back {
    background: #fdfdfd;
    animation: rotate_back 1.3s linear;
    animation-play-state: paused;
    animation-delay: calc(var(--scroll) * -1.3s);
    animation-fill-mode: forwards;
}

.fade-in-section {
    opacity: 0;
    transform: translateY(20vh);
    visibility: hidden;
    transition: opacity 0.6s ease-out, transform 1.2s ease-out;
    will-change: opacity, visibility;
}

.fade-in-section.active {
    opacity: 1;
    transform: none;
    visibility: visible;
}


:root {
    --scroll: 0;
}
.hero-grass {
    bottom: 0px !important;
}

@media (min-width: 768px) and (max-width: 1199px) {
    .hero-section {
        min-height: max(calc(100vh - 4rem), 900px) !important;
    }
    .hero-grass {
        top: 0;
        bottom: 0 !important;
        height: auto !important;
    }
}

@media (min-width: 768px) and (max-width: 991px) {
    .book {
        width: 400px;
        margin: 0 auto;
    }
}

@media (max-width: 767px) {
    .book {
        transform: scale(0.75);
        transform-origin: top center;
        margin-bottom: -100px;
    }
}

@media (max-width: 575px) {
    .hero-book-sticky {
        position: relative !important;
    }
    .book {
        transform: scale(0.6);
        transform-origin: top center;
        margin-bottom: -160px;
    }
}


/* Diepte van het dichte boek. Het hele boek staat schuin naar je toe
   (rotateX/rotateY met perspectief) en draait recht terwijl het bij het
   scrollen openklapt (dezelfde scroll-gestuurde animatie als de bladzijden).
   De snede: bladzijdenblokken aan de rechter- en onderkant, haaks op de kaft
   naar achteren gedraaid, met fijne papierlijntjes; de kaft steekt er een
   fractie overheen. Ze verdwijnen zodra het boek opengaat.
   Alles hier hangt aan .hero-book-sticky: de boekeditor gebruikt ook .book en
   .front en hoort deze homepage-diepte niet te krijgen. */
.hero-book-sticky .book {
    transform-origin: 200px 50%;
    animation: book_kantel 1.3s linear;
    animation-play-state: paused;
    animation-delay: calc(var(--scroll) * -1.3s);
    animation-fill-mode: both;
}
@keyframes book_kantel {
    0% { transform: perspective(1400px) rotateX(10deg) rotateY(-32deg) rotateZ(1deg); }
    32%, 100% { transform: perspective(1400px); }
}
.book-snede {
    position: absolute;
    transform-style: preserve-3d;
    animation: book_snede 1.3s linear;
    animation-play-state: paused;
    animation-delay: calc(var(--scroll) * -1.3s);
    animation-fill-mode: both;
}
.book-snede-rechts {
    left: 397px; top: 5px; bottom: 5px; width: 42px;
    transform-origin: left center;
    transform: rotateY(90deg);
    background:
        linear-gradient(90deg, rgba(0, 0, 0, .28), rgba(0, 0, 0, .05) 25%, rgba(0, 0, 0, 0) 60%, rgba(0, 0, 0, .3)),
        repeating-linear-gradient(90deg, #fffdf7 0 1px, #d9d0bd 1px 2px);
    border-right: 3px solid #2f6f59;  /* achterkaft */
}
.book-snede-onder {
    left: 0; width: 395px; top: calc(100% - 5px); height: 42px;
    transform-origin: center top;
    transform: rotateX(-90deg);
    background:
        linear-gradient(180deg, rgba(0, 0, 0, .2), rgba(0, 0, 0, 0) 40%, rgba(0, 0, 0, .35)),
        repeating-linear-gradient(180deg, #fbf7ee 0 1px, #d4cab6 1px 2px);
    border-bottom: 3px solid #2f6f59;
}
@keyframes book_snede {
    0%, 12% { opacity: 1; }
    20%, 100% { opacity: 0; }
}
/* De kaft: slagschaduw op de ondergrond, een ingedrukte scharnierlijn langs
   de rug en een zachte glans, zodat hij leest als karton en niet als foto. */
.hero-book-sticky .front, .hero-cover-mobiel { box-shadow: 1.4em 1.6em 2.6em rgba(20, 45, 35, .38), .2em .2em .5em rgba(20, 45, 35, .25); }
.hero-book-sticky .front::before, .hero-book-sticky .front::after, .hero-cover-mobiel::before, .hero-cover-mobiel::after { content: ''; position: absolute; inset: 0; pointer-events: none; z-index: 5; border-radius: inherit; }
.hero-book-sticky .front::before, .hero-cover-mobiel::before {
    background:
        linear-gradient(90deg, rgba(0, 0, 0, .38) 0, rgba(0, 0, 0, .12) 6px, rgba(0, 0, 0, 0) 14px,
                        rgba(0, 0, 0, .28) 17px, rgba(255, 255, 255, .32) 20px, rgba(0, 0, 0, .14) 23px, rgba(0, 0, 0, 0) 32px);
}
.hero-book-sticky .front::after, .hero-cover-mobiel::after {
    background: linear-gradient(118deg, rgba(255, 255, 255, .26) 0%, rgba(255, 255, 255, .06) 28%, rgba(255, 255, 255, 0) 45%,
                                rgba(0, 0, 0, 0) 70%, rgba(0, 0, 0, .14) 100%);
}
.hero-book-sticky .front .hero-cover-desktop { border-radius: 0 .5em .5em 0; }

@keyframes rotate_front {
    to {
        transform: rotateY(-160deg) scale(1.1);
        box-shadow: 0 1em 3em 0 rgba(0, 0, 0, .2);

    }
}

@keyframes rotate_page1 {
    to {
        transform: rotateY(-150deg) scale(1.1);
        box-shadow: 0 1em 3em 0 rgba(0, 0, 0, .2);
    }
}

@keyframes rotate_page2 {
    to {
        transform: rotateY(-30deg) scale(1.1);
        box-shadow: 0 1em 3em 0 rgba(0, 0, 0, .2);
    }
}

@keyframes rotate_page3 {
    to {
        transform: rotateY(-140deg) scale(1.1);
        box-shadow: 0 1em 3em 0 rgba(0, 0, 0, .2);
    }
}

@keyframes rotate_page4 {
    to {
        transform: rotateY(-40deg) scale(1.1);
        box-shadow: 0 1em 3em 0 rgba(0, 0, 0, .2);
    }
}

@keyframes rotate_page5 {
    to {
        transform: rotateY(-130deg) scale(1.1);
        box-shadow: 0 1em 3em 0 rgba(0, 0, 0, .2);
    }
}

@keyframes rotate_page6 {
    to {
        transform: rotateY(-50deg) scale(1.1);
        box-shadow: 0 1em 3em 0 rgba(0, 0, 0, .2);
    }
}

@keyframes rotate_back {
    to {
        transform: rotateY(-20deg) scale(1.1);
    }
}


.page-loading {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    -webkit-transition: all .4s .2s ease-in-out;
    transition: all .4s .2s ease-in-out;
    background-color: #fff;
    opacity: 0;
    visibility: hidden;
    z-index: 9999;
}

.dark-mode .page-loading {
    background-color: #121519;
}

.page-loading.active {
    opacity: 1;
    visibility: visible;
}

.page-loading-inner {
    position: absolute;
    top: 50%;
    left: 0;
    width: 100%;
    text-align: center;
    -webkit-transform: translateY(-50%);
    transform: translateY(-50%);
    -webkit-transition: opacity .2s ease-in-out;
    transition: opacity .2s ease-in-out;
    opacity: 0;
}

.page-loading.active > .page-loading-inner {
    opacity: 1;
}

.page-loading-inner > span {
    display: block;
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    font-weight: normal;
    color: #6f788b;
}

.dark-mode .page-loading-inner > span {
    color: #fff;
    opacity: .6;
}

.page-spinner {
    display: inline-block;
    width: 2.75rem;
    height: 2.75rem;
    margin-bottom: .75rem;
    vertical-align: text-bottom;
    background-color: #d7dde2;
    border-radius: 50%;
    opacity: 0;
    -webkit-animation: spinner .75s linear infinite;
    animation: spinner .75s linear infinite;
}

.dark-mode .page-spinner {
    background-color: rgba(255, 255, 255, .25);
}

@-webkit-keyframes spinner {
    0% {
        -webkit-transform: scale(0);
        transform: scale(0);
    }
    50% {
        opacity: 1;
        -webkit-transform: none;
        transform: none;
    }
}

@keyframes spinner {
    0% {
        -webkit-transform: scale(0);
        transform: scale(0);
    }
    50% {
        opacity: 1;
        -webkit-transform: none;
        transform: none;
    }
}

/* Decoratieve bomen in de desktop-hero (homepage): één WebP-achtergrond die
   de browser maar één keer laadt, i.p.v. vijf <img>'s van tree.png (980 KB).
   De instanties positioneren zichzelf via inline left/right/top en spiegelen
   eventueel met transform: scaleX(-1). 658x700 = de beeldverhouding van de
   bron (4810x5122) op de getoonde hoogte. De afbeelding komt uit
   generated_static/ (manage.py generate_webp). */
.tree-decoration {
    position: absolute;
    width: 658px;
    height: 700px;
    background: url("../img/components/tree-768.bea3e10766b9.webp") no-repeat center / contain;
    z-index: 2;
    pointer-events: none;
}

/* Damion self-hosted (was Google Fonts): op marketing alleen gebruikt voor de
   boektekst-preview in het 3D-boek op de homepage. Latin-subset dekt Nederlands.
   De editor gebruikt dezelfde self-hosted versie. */
@font-face {
    font-family: 'Damion';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url("../fonts/damion-regular-latin.b18fec5f5597.woff2") format('woff2');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* Rijen kaarten op de homepage (voorbeelden, gelegenheden), zoals op de
   verhaalpagina: zelf opzij schuiven, met pijlen op desktop (homepage.js).
   De strook houdt binnen zijn overflow ruimte vrij voor de schaduwen. */
.vb-container { max-width: 72rem; }
.vb-rij { position: relative; }
.vb-strip {
    display: flex; gap: 1.25rem; overflow-x: auto; scroll-snap-type: x proximity; scrollbar-width: none;
    padding: .75rem 1rem 1.75rem; margin: -.75rem -1rem -1.75rem; scroll-padding-left: 1rem;
}
.vb-strip::-webkit-scrollbar { display: none; }
.vb-strip > * { flex: 0 0 auto; scroll-snap-align: start; }
.vb-pijl {
    position: absolute; top: 38%; z-index: 2; width: 2.75rem; height: 2.75rem; border: 0; border-radius: 50%;
    background: #fff; color: #2f3742; box-shadow: 0 .3rem 1rem rgba(18, 21, 25, .16);
    display: flex; align-items: center; justify-content: center; font-size: 1.1rem; cursor: pointer;
}
.vb-pijl[hidden] { display: none; }
.vb-pijl-links { left: -1.4rem; }
.vb-pijl-rechts { right: -1.4rem; }
@media (hover: none), (max-width: 767.98px) {
    .vb-pijl { display: none !important; }
}

/* Boekvoorkant in de homepage-hero (partials/hero_cover.html): per verhaal
   een laag met beeld (vierkant bijgesneden) en titel. homepage.js wisselt de
   lagen: de nieuwe verschijnt als een cirkel van licht die openvouwt
   (.is-nieuw), met sterretjes eroverheen; de vorige blijft eronder staan tot
   de onthulling klaar is. */
.hero-cover { position: relative; display: block; overflow: hidden; aspect-ratio: 1; background: #1d2a4a; isolation: isolate; }
.hero-cover-laag { position: absolute; inset: 0; opacity: 0; transition: opacity .6s ease; }
.hero-cover-laag.is-vorig { opacity: 1; z-index: 1; }
.hero-cover-laag.is-actief { opacity: 1; z-index: 2; }
.hero-cover-laag img { display: block; width: 100%; height: 100%; object-fit: cover; }
.hero-cover-titel {
    position: absolute; left: 0; right: 0; top: 0; padding: 9% 8% 18%; text-align: center; color: #fff;
    font-weight: 800; line-height: 1.05; letter-spacing: -.01em; font-size: var(--cover-titel, 2.4rem);
    text-shadow: 0 2px 10px rgba(0, 0, 0, .35); background: linear-gradient(180deg, rgba(8, 16, 40, .45), rgba(8, 16, 40, 0));
}
.hero-cover-desktop { width: 400px; height: 400px; }
.hero-cover-mobiel { width: 100%; border-radius: 0 .4em .4em 0; --cover-titel: min(7.5vw, 2.1rem); }

/* Het boek op mobiel: dezelfde diepte als op desktop (snede, scharnier,
   glans, schaduw), maar vast schuin met een heel rustige zweefbeweging. */
.mboek {
    position: relative; display: block; width: 60vw; max-width: 22rem; transform-style: preserve-3d;
    transform: perspective(1100px) rotateX(9deg) rotateY(-26deg) rotateZ(1deg);
    animation: mboek-zweven 7s ease-in-out infinite;
}
@keyframes mboek-zweven {
    0%, 100% { transform: perspective(1100px) rotateX(9deg) rotateY(-26deg) rotateZ(1deg) translateY(0); }
    50% { transform: perspective(1100px) rotateX(7deg) rotateY(-21deg) rotateZ(.5deg) translateY(-6px); }
}
.mboek-snede { position: absolute; }
.mboek-snede-rechts {
    left: calc(100% - 1px); top: 2%; bottom: 2%; width: 12%;
    transform-origin: left center; transform: rotateY(90deg);
    background:
        linear-gradient(90deg, rgba(0, 0, 0, .28), rgba(0, 0, 0, .05) 25%, rgba(0, 0, 0, 0) 60%, rgba(0, 0, 0, .3)),
        repeating-linear-gradient(90deg, #fffdf7 0 1px, #d9d0bd 1px 2px);
    border-right: 2px solid #2f6f59;
}
.mboek-snede-onder {
    left: 0; right: 3px; top: 100%; height: 12%;
    transform-origin: center top; transform: rotateX(-90deg);
    background:
        linear-gradient(180deg, rgba(0, 0, 0, .2), rgba(0, 0, 0, 0) 40%, rgba(0, 0, 0, .35)),
        repeating-linear-gradient(180deg, #fbf7ee 0 1px, #d4cab6 1px 2px);
    border-bottom: 2px solid #2f6f59;
}
@media (prefers-reduced-motion: reduce) {
    .mboek { animation: none; }
}

.hero-cover-laag.is-nieuw { transition: none; animation: hero-tover 1.6s cubic-bezier(.22, .8, .25, 1) both; }
.hero-cover-laag.is-nieuw .hero-cover-titel { animation: hero-titel 1.2s .55s cubic-bezier(.22, .8, .25, 1) both; }
@keyframes hero-tover {
    0% { clip-path: circle(0% at 50% 45%); filter: brightness(1.8) saturate(1.3) blur(6px); transform: scale(1.08); }
    55% { filter: brightness(1.15) saturate(1.1) blur(0); }
    100% { clip-path: circle(75% at 50% 45%); filter: none; transform: none; }
}
@keyframes hero-titel {
    from { opacity: 0; transform: translateY(.4em); letter-spacing: .06em; }
    to { opacity: 1; transform: none; letter-spacing: -.01em; }
}
/* Sterretjes: vierpuntige sterren in goud en wit die opflonkeren en wegdrijven */
.hero-cover-sterren { position: absolute; inset: 0; z-index: 3; pointer-events: none; }
.hero-cover-sterren::before {
    content: ''; position: absolute; left: 50%; top: 45%; width: 10%; aspect-ratio: 1; border-radius: 50%;
    transform: translate(-50%, -50%); background: radial-gradient(circle, rgba(255, 244, 200, .9), rgba(255, 244, 200, 0) 70%);
    animation: hero-gloed 1.3s ease-out both;
}
.hero-ster {
    position: absolute; width: var(--grootte, 10px); aspect-ratio: 1; opacity: 0;
    background: radial-gradient(circle, #fff 0 25%, #ffe08a 55%, rgba(255, 224, 138, 0) 72%);
    clip-path: polygon(50% 0, 61% 39%, 100% 50%, 61% 61%, 50% 100%, 39% 61%, 0 50%, 39% 39%);
    filter: drop-shadow(0 0 4px rgba(255, 230, 150, .9));
    animation: hero-ster 1.5s ease-out both;
}
@keyframes hero-ster {
    0% { opacity: 0; transform: scale(0) rotate(0); }
    35% { opacity: 1; transform: scale(1.2) rotate(45deg); }
    100% { opacity: 0; transform: translateY(-18px) scale(.3) rotate(120deg); }
}
@keyframes hero-gloed {
    0% { opacity: 0; width: 10%; }
    30% { opacity: 1; }
    100% { opacity: 0; width: 160%; }
}
@media (prefers-reduced-motion: reduce) {
    .hero-cover-laag.is-nieuw, .hero-cover-laag.is-nieuw .hero-cover-titel { animation: none; }
}

/* Voorbeeldkaarten: zelfde opbouw en kleuren als de kaarten op de
   verhaalpagina (/editor/story): beeld 4:3, titel op één regel en labels op
   wit, daaronder de samenvatting met de naam vet. De hele kaart is de link. */
.vb-kaart {
    display: flex; flex-direction: column; background: #fff; border-radius: 1rem; overflow: hidden;
    box-shadow: 0 .2rem .7rem rgba(18, 21, 25, .08); color: #2f3742; text-decoration: none;
    width: 21rem; max-width: 82vw;
    transition: transform 120ms ease-out, box-shadow .15s ease;
}
.vb-kaart:hover { color: #2f3742; box-shadow: 0 .6rem 1.4rem rgba(18, 21, 25, .16); transform: translateY(-2px); }
.vb-kaart:active { transform: scale(.985); }
.vb-beeld { display: block; aspect-ratio: 4 / 3; background: #dfe8e3; }
.vb-beeld img { display: block; width: 100%; height: 100%; object-fit: cover; }
.vb-titel {
    padding: .85rem 1.1rem 0; font-weight: 700; font-size: 1.15rem; line-height: 1.3;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.vb-labels { display: flex; gap: .3rem; padding: .45rem 1.1rem 0; }
.vb-label { font-size: .75rem; font-weight: 600; color: #2f4a3f; background: #f0f7f4; border-radius: 50rem; padding: .15rem .6rem; }
.vb-tekst { display: block; padding: .8rem 1.1rem 0; font-size: .875rem; line-height: 1.55; color: #6b7280; }
.vb-tekst strong { color: #2f4a3f; font-weight: 700; }
.vb-cta {
    margin-top: auto; padding: .9rem 1.1rem 1.1rem; font-weight: 600; font-size: .9rem; color: #448c74;
    display: inline-flex; align-items: center; gap: .4rem;
}
.vb-cta i { transition: transform .15s ease-out; }
.vb-kaart:hover .vb-cta i { transform: translateX(3px); }
/* Kleinere kaart voor de gelegenheden: alleen beeld, titel en één label */
.vb-kaart-klein { width: 13rem; }
.vb-kaart-klein .vb-titel { font-size: 1rem; padding: .6rem .75rem 0; }
.vb-kaart-klein .vb-labels { padding: .45rem .75rem .75rem; }
@media (max-width: 767.98px) {
    .vb-kaart-klein { width: 10.5rem; }
    .vb-kaart-klein .vb-titel { font-size: .85rem; }
}
@media (prefers-reduced-motion: reduce) {
    .vb-kaart, .vb-cta i { transition: none; }
    .vb-kaart:hover { transform: none; }
}