:root {
    --dme-bg: #0a0a0a;
    --dme-text: #ffffff;
    --dme-accent: #ff6600;
    --dme-radius: 8px;
    --dme-gap: 12px;
    --dme-transition: 0.4s ease;
    --dme-maxwidth: 1600px;
    --dme-story-height: 70vh;
    --dme-story-height-mobile: 50vh;
}

.dme-experience {
    position: relative;
    width: 100%;
    max-width: var(--dme-maxwidth);
    margin: 0 auto;
    background: var(--dme-bg);
    color: var(--dme-text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    overflow: hidden;
    border-radius: var(--dme-radius);
}

.dme-experience[data-state="loading"] { cursor: wait; }
.dme-experience[data-state="empty"] { cursor: default; min-height: 200px; }

.dme-story {
    position: relative;
    width: 100%;
    height: var(--dme-story-height);
    min-height: 300px;
    max-height: 800px;
    overflow: hidden;
    background: var(--dme-bg);
}

.dme-story__viewport {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.dme-scene {
    position: absolute;
    inset: 0;
    display: grid;
    gap: 4px;
    padding: 4px;
    opacity: 0;
    transition: opacity 0.6s ease, transform 0.6s ease, clip-path 0.6s ease;
}

.dme-scene--hero { grid-template-columns: 1fr; grid-template-rows: 1fr; }
.dme-scene--dual { grid-template-columns: 1fr 1fr; grid-template-rows: 1fr; }
.dme-scene--triple { grid-template-columns: 1fr 1fr 1fr; grid-template-rows: 1fr; }
.dme-scene--grid { grid-template-columns: 1fr 1fr; grid-template-rows: 1fr 1fr; }
.dme-scene--mosaic { grid-template-columns: repeat(3, 1fr); grid-template-rows: 1fr 1fr; grid-auto-flow: row dense; }
.dme-scene--cinematic { grid-template-columns: 1fr; grid-template-rows: 1fr; }
.dme-scene--main-secondary { grid-template-columns: repeat(2, 1fr); grid-template-rows: 1fr 1fr; grid-auto-flow: row dense; }
.dme-scene--stack { grid-template-columns: 1fr; grid-template-rows: 1fr 1fr; }
.dme-scene--collage { grid-template-columns: 1fr 1fr; grid-template-rows: 1fr 1fr; }
.dme-scene--zoom-focus { grid-template-columns: 1fr; grid-template-rows: 1fr; }

.dme-photo {
    position: relative;
    overflow: hidden;
    border-radius: var(--dme-radius);
    cursor: pointer;
    background: rgba(255, 255, 255, 0.03);
}

.dme-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    user-select: none;
    -webkit-user-drag: none;
}

.dme-scene--collage .dme-photo:first-child { grid-column: 1 / -1; }
.dme-scene--mosaic .dme-photo:first-child { grid-row: span 2; }

.dme-download-btn {
    position: absolute;
    bottom: 8px;
    right: 8px;
    width: 36px;
    height: 36px;
    border: none;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.6);
    color: var(--dme-text);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.3s ease, transform 0.3s ease;
    backdrop-filter: blur(4px);
}

.dme-photo:hover .dme-download-btn,
.dme-photo:focus-within .dme-download-btn {
    opacity: 1;
    transform: translateY(0);
}

.dme-download-btn:hover { background: var(--dme-accent); }

.dme-story__controls {
    position: absolute;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 12px;
    z-index: 15;
    padding: 8px 16px;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(8px);
    border-radius: 24px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.dme-experience:hover .dme-story__controls,
.dme-experience:focus-within .dme-story__controls {
    opacity: 1;
}

.dme-story__dots {
    display: flex;
    gap: 6px;
}

.dme-story__dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    border: none;
    background: rgba(255, 255, 255, 0.35);
    cursor: pointer;
    transition: background 0.3s ease, transform 0.3s ease;
    padding: 0;
}

.dme-story__dot:hover { background: rgba(255, 255, 255, 0.7); transform: scale(1.3); }
.dme-story__dot--active { background: var(--dme-accent); transform: scale(1.3); }
.dme-story__dot:focus-visible { outline: 2px solid var(--dme-accent); outline-offset: 2px; }

.dme-story__nav,
.dme-story__btn {
    width: 32px;
    height: 32px;
    border: none;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    color: var(--dme-text);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s ease, transform 0.2s ease;
}

.dme-story__nav:hover,
.dme-story__btn:hover { background: var(--dme-accent); transform: scale(1.1); }
.dme-story__nav:focus-visible,
.dme-story__btn:focus-visible { outline: 2px solid var(--dme-accent); outline-offset: 2px; }
.dme-story__nav:disabled { opacity: 0.3; cursor: default; }

.dme-story__progress {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: rgba(255, 255, 255, 0.1);
    z-index: 10;
}

.dme-story__progress-bar {
    height: 100%;
    background: var(--dme-accent);
    width: 0%;
    transition: width 0.4s ease;
}

.dme-lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.95);
    z-index: 9999999;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: dme-fade-in 0.3s ease;
}

@keyframes dme-fade-in { from { opacity: 0; } to { opacity: 1; } }

.dme-lightbox__img {
    max-width: 90vw;
    max-height: 90vh;
    object-fit: contain;
    border-radius: var(--dme-radius);
}

.dme-lightbox__close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 44px;
    height: 44px;
    border: none;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    color: var(--dme-text);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s ease;
}

.dme-lightbox__close:hover { background: rgba(255, 255, 255, 0.2); }

.dme-message {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 1.1rem;
    color: var(--dme-text);
    text-align: center;
    padding: 1.5rem 2rem;
    border-radius: var(--dme-radius);
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(8px);
    z-index: 10;
}

.dme-empty {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    color: rgba(255, 255, 255, 0.5);
    font-size: 1.1rem;
    text-align: center;
    padding: 2rem;
}

@keyframes dme-photo-fade-in {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

@keyframes dme-photo-zoom-in {
    from { opacity: 0; transform: scale(1.2); }
    to { opacity: 1; transform: scale(1); }
}

@keyframes dme-photo-slide-in {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes dme-photo-ken-burns {
    from { transform: scale(1); }
    50% { transform: scale(1.08); }
    to { transform: scale(1); }
}

@keyframes dme-photo-mosaic-reveal {
    from { opacity: 0; clip-path: inset(100% 0 0 0); }
    to { opacity: 1; clip-path: inset(0 0 0 0); }
}

.dme-photo--fade-in { animation: dme-photo-fade-in 0.6s ease both; }
.dme-photo--zoom-in { animation: dme-photo-zoom-in 0.7s ease both; }
.dme-photo--slide-in { animation: dme-photo-slide-in 0.5s ease both; }
.dme-photo--ken-burns { animation: dme-photo-ken-burns 6s ease-in-out infinite; }
.dme-photo--mosaic-reveal { animation: dme-photo-mosaic-reveal 0.8s ease both; }

@media (max-width: 768px) {
    .dme-story { height: var(--dme-story-height-mobile); min-height: 250px; }
    .dme-story__controls { opacity: 1; bottom: 12px; padding: 6px 12px; gap: 8px; }
    .dme-scene--mosaic { grid-template-columns: 1fr 1fr; grid-template-rows: 1fr 1fr 1fr; }
    .dme-scene--main-secondary { grid-template-columns: 1fr 1fr; grid-template-rows: 1fr 1fr; }
    .dme-scene--main-secondary-1 { grid-column: 1 / 3; grid-row: 1; }
    .dme-scene--main-secondary-2 { grid-column: 1; grid-row: 2; }
    .dme-scene--main-secondary-3 { grid-column: 2; grid-row: 2; }
}

@media (max-width: 480px) {
    .dme-story { min-height: 200px; }
    .dme-scene--dual { grid-template-columns: 1fr; grid-template-rows: 1fr 1fr; }
    .dme-scene--triple { grid-template-columns: 1fr; grid-template-rows: 1fr 1fr 1fr; }
    .dme-scene--collage { grid-template-columns: 1fr; grid-template-rows: 1fr 1fr; }
}

@media (prefers-reduced-motion: reduce) {
    .dme-scene, .dme-photo, .dme-lightbox, .dme-download-btn,
    .dme-story__nav, .dme-story__btn, .dme-story__progress-bar {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}

.dme-reduced-motion .dme-scene,
.dme-reduced-motion .dme-photo,
.dme-reduced-motion .dme-lightbox {
    animation: none !important;
    transition-duration: 0.01ms !important;
}