:root {
    --kujon-bg: #f5f4ef;
    --kujon-text: #1a1a1a;
    --kujon-font: 'Playfair Display', serif;
}

/* Hide header and footer for full immersion */
body.kujon-app .site-header,
body.kujon-app .site-footer {
    display: none !important;
}

body.kujon-app {
    background-color: var(--kujon-bg);
    /* Subtle paper texture */
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.06'/%3E%3C/svg%3E");
    margin: 0;
    padding: 0;
    overflow: hidden;
    touch-action: pan-y;
}

.kujon-container {
    width: 100vw;
    height: 100vh;
    height: 100dvh;
    display: flex;
    justify-content: center;
    align-items: center;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
}

#kujon-cards {
    width: 100vw;
    height: 100vh;
    height: 100dvh;
    position: relative;
    overflow: hidden;
}

.kujon-card {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 30px;
    box-sizing: border-box;
    transition: transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1), opacity 0.6s ease;
    will-change: transform, opacity;
}

/* Initial state for new cards waiting on the right */
.kujon-card.next {
    transform: translateX(100%);
    opacity: 0;
    z-index: 10;
}

/* State for the active card */
.kujon-card.current {
    transform: translateX(0);
    opacity: 1;
    z-index: 20;
}

/* State for cards moving away to the left */
.kujon-card.prev {
    transform: translateX(-50%);
    opacity: 0;
    z-index: 5;
    /* Opacity fades much faster to prevent text ghosting over the next card */
    transition: transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1), opacity 0.2s ease;
}

.kujon-content {
    width: 100%;
    max-width: 600px;
    display: flex;
    flex-direction: column;
}

.kujon-word {
    font-family: var(--kujon-font);
    font-size: 18vw;
    font-weight: 700;
    color: var(--kujon-text);
    margin: 0;
    line-height: 1.0;
    letter-spacing: -0.03em;
    text-transform: lowercase;
}

@media (min-width: 768px) {
    .kujon-word {
        font-size: 7rem;
    }
}

.kujon-line {
    width: 100%;
    height: 2px;
    background-color: var(--kujon-text);
    margin: 4vh 0;
    opacity: 0.85;
}

.kujon-definition {
    font-family: var(--kujon-font);
    font-size: 1.15rem;
    line-height: 1.6;
    color: var(--kujon-text);
    opacity: 0.9;
}

@media (min-width: 768px) {
    .kujon-definition {
        font-size: 1.4rem;
    }
}

.kujon-loading {
    position: absolute;
    font-family: var(--kujon-font);
    color: var(--kujon-text);
    font-size: 1.2rem;
    opacity: 0.6;
    font-style: italic;
    transition: opacity 0.3s;
}

.kujon-loading.hidden {
    opacity: 0;
    pointer-events: none;
}