/* ── Masonry columns ── */
.masonry-grid {
    column-gap: 0.65rem;
    column-fill: balance;
}

/* Gallery: grid keeps DOM order (newest → oldest, left to right) */
.masonry-grid--gallery {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 0.85rem;
    column-count: unset;
}

.masonry-grid--recent { column-count: 3; }

.masonry-grid--gallery > .history-card {
    break-inside: unset;
    margin-bottom: 0;
    display: flex;
    flex-direction: column;
    width: 100%;
}

.masonry-grid > .recent-card {
    break-inside: avoid;
    margin-bottom: 0.85rem;
    display: inline-block;
    width: 100%;
    vertical-align: top;
}

/* Variable aspect thumbs */
.history-card__thumb,
.recent-card__thumb {
    aspect-ratio: var(--thumb-ar, 1 / 1);
    height: auto;
}

.history-card__thumb img,
.recent-card__thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Card entrance */
@keyframes masonry-card-enter {
    from {
        opacity: 0;
        transform: translateY(14px) scale(0.96);
    }
    to {
        opacity: 1;
        transform: none;
    }
}

.masonry-card--enter {
    animation: masonry-card-enter 0.5s cubic-bezier(0.4, 0, 0.2, 1) both;
}

/* ── Generation overlay ── */
.view--studio {
    position: relative;
}

.gen-overlay {
    position: absolute;
    inset: 0;
    z-index: 12;
    display: grid;
    place-items: center;
    pointer-events: none;
    overflow: hidden;
}

.gen-overlay[hidden] { display: none !important; }

.gen-overlay__aurora {
    position: absolute;
    inset: -20%;
    background:
        radial-gradient(ellipse 50% 40% at 30% 40%, rgba(255, 255, 255, 0.07), transparent 70%),
        radial-gradient(ellipse 45% 35% at 70% 55%, rgba(251, 146, 60, 0.09), transparent 70%),
        radial-gradient(ellipse 40% 30% at 50% 80%, rgba(147, 197, 253, 0.06), transparent 70%);
    animation: gen-aurora 8s ease-in-out infinite alternate;
}

@keyframes gen-aurora {
    0% { transform: translate(0, 0) scale(1); opacity: 0.85; }
    50% { transform: translate(2%, -3%) scale(1.05); opacity: 1; }
    100% { transform: translate(-2%, 2%) scale(0.98); opacity: 0.9; }
}

.gen-overlay__veil {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.35);
    backdrop-filter: blur(2px);
}

.gen-overlay__content {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    text-align: center;
    max-width: 320px;
}

.gen-orbit {
    position: relative;
    width: 72px;
    height: 72px;
}

.gen-orbit__ring {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    border: 2px solid transparent;
    border-top-color: rgba(255, 255, 255, 0.85);
    border-right-color: rgba(255, 255, 255, 0.15);
    animation: gen-orbit-spin 1.1s linear infinite;
}

.gen-orbit__ring--inner {
    inset: 10px;
    border-top-color: rgba(251, 146, 60, 0.7);
    border-right-color: transparent;
    animation-duration: 1.6s;
    animation-direction: reverse;
}

.gen-orbit__core {
    position: absolute;
    inset: 22px;
    border-radius: 50%;
    background: radial-gradient(circle at 35% 35%, #fff, #a1a1aa 55%, #52525b);
    box-shadow: 0 0 24px rgba(255, 255, 255, 0.35);
    animation: gen-core-pulse 2s ease-in-out infinite;
}

@keyframes gen-orbit-spin { to { transform: rotate(360deg); } }

@keyframes gen-core-pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(0.88); opacity: 0.75; }
}

.gen-overlay__text {
    margin: 0;
    font-size: .95rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--text);
}

.gen-progress {
    width: min(240px, 70vw);
    height: 4px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.1);
    overflow: hidden;
}

.gen-progress__bar {
    height: 100%;
    width: 0%;
    border-radius: inherit;
    background: linear-gradient(90deg, rgba(255,255,255,.5), #fff, rgba(255,255,255,.5));
    background-size: 200% 100%;
    transition: width 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.gen-progress__bar--indeterminate {
    width: 40% !important;
    animation: gen-progress-slide 1.4s ease-in-out infinite;
}

@keyframes gen-progress-slide {
    0% { transform: translateX(-120%); }
    100% { transform: translateX(320%); }
}

/* Skeleton placeholders in grid */
.recent-card--placeholder {
    pointer-events: none;
}

.recent-card--placeholder .recent-card__thumb {
    background: var(--surface-2);
    overflow: hidden;
}

.skeleton-shimmer {
    position: relative;
    overflow: hidden;
}

.skeleton-shimmer::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(
        105deg,
        transparent 35%,
        rgba(255, 255, 255, 0.07) 50%,
        transparent 65%
    );
    animation: skeleton-shimmer 1.6s ease-in-out infinite;
}

@keyframes skeleton-shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.recent-card__meta--skeleton {
    height: 10px;
    width: 65%;
    margin: .55rem .15rem .2rem;
    border-radius: 999px;
    background: var(--surface-2);
    position: relative;
    overflow: hidden;
}

.recent-card__meta--skeleton::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,.06), transparent);
    animation: skeleton-shimmer 1.6s ease-in-out infinite;
}

/* Composer generating state */
.composer--generating .prompt-row {
    border-color: rgba(255, 255, 255, 0.22);
    box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.06), 0 0 32px rgba(255, 255, 255, 0.06);
}

.send-btn--generating {
    position: relative;
    overflow: visible;
}

.send-btn--generating::before {
    content: "";
    position: absolute;
    inset: -4px;
    border-radius: inherit;
    border: 2px solid rgba(255, 255, 255, 0.45);
    animation: send-btn-ring 1.2s ease-out infinite;
}

@keyframes send-btn-ring {
    0% { transform: scale(1); opacity: 0.8; }
    100% { transform: scale(1.35); opacity: 0; }
}

.progress { display: none; }

.recent-card--fresh .recent-card__thumb,
.studio-hero--fresh .studio-hero__media {
    animation: fresh-reveal 0.85s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes fresh-reveal {
    0% {
        filter: brightness(1.35) saturate(1.1);
        transform: scale(1.03);
    }
    100% {
        filter: none;
        transform: none;
    }
}

@media (max-width: 1100px) {
    .masonry-grid--gallery { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 768px) {
    .masonry-grid--gallery { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .masonry-grid--recent { column-count: 2; }

    .gen-overlay__content { padding: 1rem; }
    .gen-orbit { width: 60px; height: 60px; }
}

@media (max-width: 480px) {
    .masonry-grid--gallery { grid-template-columns: 1fr; }
    .masonry-grid--recent { column-count: 1; }
}