.preview-page {
    gap: 1rem;
}

.preview-hero-card,
.preview-workspace-card {
    position: relative;
    overflow: hidden;
}

.preview-hero-card::before,
.preview-workspace-card::before {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
        radial-gradient(circle at top right, rgba(99, 102, 241, .18), transparent 30%),
        radial-gradient(circle at bottom left, rgba(56, 189, 248, .12), transparent 32%);
}

.preview-workspace-head,
.preview-viewport {
    position: relative;
    z-index: 1;
}

.preview-hero-card .file-cover,
.preview-cover-placeholder {
    box-shadow: 0 18px 40px rgba(15, 23, 42, .28);
}

.preview-cover-placeholder {
    background:
        linear-gradient(145deg, rgba(99, 102, 241, .22), rgba(56, 189, 248, .12)),
        rgba(15, 23, 42, .72);
    color: #dbeafe;
}

.preview-hero-card .file-hero-content {
    display: grid;
    gap: .95rem;
    min-width: 0;
}

.preview-hero-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: .75rem;
    min-width: 0;
}

.preview-title-clamped {
    margin: 0;
    min-width: 0;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
    text-overflow: ellipsis;
}

.preview-hero-card .file-hero-meta {
    margin-bottom: 0;
}

.preview-lead {
    margin: -.25rem 0 0;
    color: var(--text-secondary);
    font-size: .97rem;
    line-height: 1.6;
}

.preview-unlock-card {
    display: flex;
    align-items: stretch;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem 1.1rem;
    border-radius: 14px;
    border: 1px solid rgba(148, 163, 184, .16);
    background: rgba(15, 23, 42, .34);
}

.preview-unlock-copy {
    display: grid;
    align-content: center;
    gap: .35rem;
    min-width: 0;
    flex: 1 1 auto;
}

.preview-unlock-title {
    margin: 0;
    font-size: 1.05rem;
    line-height: 1.25;
}

.preview-unlock-text {
    margin: 0;
    color: var(--text-secondary);
    font-size: .93rem;
    line-height: 1.55;
}

.preview-unlock-cta {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    width: 320px;
    max-width: 100%;
    flex: 0 0 320px;
}

.preview-unlock-actions {
    display: block;
    width: 100%;
}

.preview-unlock-actions #filePrimaryCta {
    display: block;
    width: 100%;
}

.preview-unlock-actions #filePrimaryCta > .file-btn-primary,
.preview-unlock-actions #filePrimaryCta > .file-btn-success,
.preview-unlock-actions .file-btn-primary,
.preview-unlock-actions .file-btn-success {
    width: 100%;
    white-space: nowrap;
}

.preview-quick-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: .7rem;
}

.preview-quick-stat {
    padding: .85rem .9rem;
    border-radius: 12px;
    border: 1px solid rgba(148, 163, 184, .14);
    background: rgba(15, 23, 42, .32);
}

.preview-quick-stat-label {
    display: block;
    margin-bottom: .3rem;
    color: var(--text-tertiary);
    font-size: .75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .06em;
}

.preview-quick-stat-value {
    display: block;
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 700;
    word-break: break-word;
}

.preview-chip-row {
    display: flex;
    flex-wrap: wrap;
    gap: .55rem;
}

.preview-chip {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    padding: .5rem .72rem;
    border-radius: 999px;
    background: rgba(15, 23, 42, .42);
    border: 1px solid rgba(148, 163, 184, .15);
    color: var(--text-secondary);
    font-size: .82rem;
    font-weight: 600;
}

.preview-cta-row {
    display: flex;
    flex-wrap: nowrap;
    flex-shrink: 0;
    align-items: center;
    justify-content: flex-end;
    gap: .5rem;
    margin-left: auto;
}

.preview-cta-row .file-btn-primary,
.preview-cta-row .file-btn-ghost,
.preview-cta-row .preview-inline-btn {
    padding: .52rem .78rem;
    border-radius: 8px;
    font-size: .82rem;
    line-height: 1.2;
}

.preview-inline-btn {
    font-family: inherit;
    cursor: pointer;
}

.preview-inline-btn--accent {
    border-color: rgba(59, 130, 246, .28);
    background: rgba(59, 130, 246, .12);
    color: #bfdbfe;
}

.preview-inline-btn--accent:hover {
    border-color: rgba(59, 130, 246, .42);
    background: rgba(59, 130, 246, .18);
    color: #e0f2fe;
}

.preview-inline-btn:disabled,
.preview-btn:disabled {
    opacity: .64;
    cursor: wait;
}

.preview-action-bar {
    margin-top: 0;
}

.preview-workspace-head {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 1rem;
    align-items: center;
    margin-bottom: 1rem;
}

.preview-eyebrow {
    margin: 0 0 .2rem;
    color: #93c5fd;
    font-size: .75rem;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.preview-title {
    margin: 0;
    font-size: 1.4rem;
    line-height: 1.2;
}

.preview-subtitle {
    margin: .35rem 0 0;
    color: var(--text-secondary);
    font-size: .95rem;
    line-height: 1.55;
}

.preview-actions {
    display: flex;
    gap: .65rem;
    flex-wrap: wrap;
    align-items: center;
}

@media (max-width: 760px) {
    .preview-unlock-card {
        flex-direction: column;
        align-items: stretch;
    }

    .preview-unlock-cta {
        width: 100%;
        max-width: none;
        flex: 1 1 auto;
    }

    .preview-unlock-actions #filePrimaryCta > .file-btn-primary,
    .preview-unlock-actions #filePrimaryCta > .file-btn-success,
    .preview-unlock-actions .file-btn-primary,
    .preview-unlock-actions .file-btn-success {
        white-space: normal;
    }
}

.preview-btn {
    border: 1px solid rgba(148, 163, 184, .18);
    background: rgba(15, 23, 42, .36);
    color: var(--text-primary);
    border-radius: 10px;
    padding: .7rem .95rem;
    font-size: .9rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: border-color .18s, background .18s, color .18s;
    font-family: inherit;
}

.preview-btn:hover {
    border-color: rgba(96, 165, 250, .32);
    background: rgba(30, 41, 59, .62);
}

.preview-btn-primary {
    border-color: rgba(59, 130, 246, .34);
    background: linear-gradient(135deg, rgba(59, 130, 246, .95), rgba(37, 99, 235, .95));
    color: #fff;
}

.preview-btn-primary:hover {
    border-color: rgba(147, 197, 253, .42);
    background: linear-gradient(135deg, rgba(59, 130, 246, 1), rgba(29, 78, 216, 1));
    color: #fff;
}

.preview-viewport {
    margin-top: 0;
    border: 1px solid rgba(148, 163, 184, .16);
    border-radius: 18px;
    min-height: 320px;
    max-height: min(72vh, 980px);
    overflow: auto;
    background:
        linear-gradient(180deg, rgba(15, 23, 42, .62), rgba(2, 6, 23, .72)),
        rgba(15, 23, 42, .7);
    padding: 1rem;
    box-sizing: border-box;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, .03);
}

.folder-nav {
    display: flex;
    align-items: center;
    gap: .75rem;
    position: sticky;
    top: 0;
    z-index: 4;
    margin-bottom: .9rem;
    min-height: 38px;
    padding: .6rem .7rem;
    border-radius: 12px;
    background: rgba(15, 23, 42, .92);
    border: 1px solid rgba(148, 163, 184, .14);
    backdrop-filter: blur(12px);
    box-shadow: 0 10px 24px rgba(2, 6, 23, .22);
}

.folder-nav__meta {
    min-width: 0;
    display: grid;
    gap: .18rem;
    flex: 1;
}

.folder-nav__eyebrow {
    margin: 0;
    font-size: .68rem;
    font-weight: 800;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: rgba(191, 219, 254, .8);
}

.folder-nav[hidden] {
    display: none;
}

.back-btn {
    border: 1px solid rgba(148, 163, 184, .18);
    background: rgba(30, 41, 59, .7);
    color: var(--text-primary);
    border-radius: 9px;
    padding: .5rem .8rem;
    cursor: pointer;
    font-size: .8rem;
    font-weight: 700;
    transition: border-color .18s, background .18s;
    font-family: inherit;
}

.back-btn:hover {
    border-color: rgba(96, 165, 250, .32);
    background: rgba(51, 65, 85, .9);
}

.path {
    flex: 1;
    min-width: 0;
    font-size: .82rem;
    color: var(--text-secondary);
    overflow: hidden;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: .42rem;
}

.path__segment {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.path__segment--link {
    border: 0;
    padding: 0;
    background: transparent;
    color: #93c5fd;
    cursor: pointer;
    font: inherit;
    transition: color .18s ease, text-shadow .18s ease;
}

.path__segment--link:hover {
    color: #bfdbfe;
    text-shadow: 0 0 16px rgba(96, 165, 250, .18);
}

.path__segment--current {
    color: var(--text-primary);
    font-weight: 700;
}

.path__separator {
    flex: 0 0 auto;
    color: rgba(148, 163, 184, .72);
}

.preview-status-pill {
    display: inline-flex;
    align-items: center;
    gap: .55rem;
    align-self: flex-start;
    padding: .55rem .8rem;
    border-radius: 999px;
    border: 1px solid rgba(96, 165, 250, .18);
    background: rgba(15, 23, 42, .46);
    color: var(--text-secondary);
    font-size: .78rem;
    font-weight: 700;
}

.preview-status-pill__dot {
    width: .55rem;
    height: .55rem;
    border-radius: 999px;
    background: #60a5fa;
    box-shadow: 0 0 0 0 rgba(96, 165, 250, .45);
    animation: previewPulse 1.8s ease infinite;
}

.preview-status-pill[data-status='ready'] {
    border-color: rgba(74, 222, 128, .2);
}

.preview-status-pill[data-status='ready'] .preview-status-pill__dot {
    background: #4ade80;
    box-shadow: none;
    animation: none;
}

.preview-status-pill[data-status='fetching'] {
    border-color: rgba(250, 204, 21, .28);
}

.preview-status-pill[data-status='fetching'] .preview-status-pill__dot {
    background: #facc15;
    box-shadow: none;
    animation: none;
}

.preview-status-pill[data-status='error'] {
    border-color: rgba(248, 113, 113, .22);
}

.preview-status-pill[data-status='error'] .preview-status-pill__dot {
    background: #f87171;
    box-shadow: none;
    animation: none;
}

.preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: .95rem;
    align-items: start;
}

.preview-empty-state {
    grid-column: 1 / -1;
    min-height: 240px;
    display: grid;
    place-items: center;
    gap: .7rem;
    text-align: center;
    padding: 1.5rem;
    border: 1px dashed rgba(148, 163, 184, .2);
    border-radius: 16px;
    background: rgba(15, 23, 42, .34);
    color: var(--text-secondary);
}

.preview-state-card {
    grid-column: 1 / -1;
    min-height: 260px;
    display: grid;
    place-items: center;
    gap: .75rem;
    text-align: center;
    padding: 1.8rem;
    border-radius: 18px;
    border: 1px solid rgba(148, 163, 184, .16);
    background:
        radial-gradient(circle at top, rgba(59, 130, 246, .12), transparent 42%),
        rgba(15, 23, 42, .38);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, .03);
}

.preview-state-card--error {
    border-color: rgba(248, 113, 113, .24);
    background:
        radial-gradient(circle at top, rgba(248, 113, 113, .16), transparent 42%),
        rgba(15, 23, 42, .42);
}

.preview-state-card--loading {
    border-color: rgba(96, 165, 250, .22);
    background:
        radial-gradient(circle at top, rgba(96, 165, 250, .18), transparent 42%),
        rgba(15, 23, 42, .4);
}

.preview-state-icon {
    width: 4.4rem;
    height: 4.4rem;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(59, 130, 246, .12);
    border: 1px solid rgba(96, 165, 250, .18);
    color: #93c5fd;
    font-size: 1.5rem;
    box-shadow: 0 14px 28px rgba(2, 6, 23, .18);
    position: relative;
}

.preview-state-icon--spinner::after {
    content: '';
    position: absolute;
    inset: -8px;
    border-radius: 999px;
    border: 2px solid transparent;
    border-top-color: rgba(147, 197, 253, .78);
    border-right-color: rgba(96, 165, 250, .42);
    animation: previewSpinHalo 1.6s linear infinite;
}

.preview-state-icon--spinner i {
    animation: previewSpin 1.4s linear infinite;
}

.preview-state-card--error .preview-state-icon {
    background: rgba(248, 113, 113, .13);
    border-color: rgba(248, 113, 113, .22);
    color: #fca5a5;
}

.preview-state-title,
.preview-state-copy,
.preview-state-code {
    margin: 0;
}

.preview-state-title {
    font-size: 1.1rem;
    line-height: 1.25;
    color: var(--text-primary);
}

.preview-state-copy {
    max-width: 42rem;
    color: var(--text-secondary);
    font-size: .95rem;
    line-height: 1.6;
}

.preview-state-code {
    padding: .45rem .7rem;
    border-radius: 10px;
    background: rgba(2, 6, 23, .36);
    border: 1px solid rgba(148, 163, 184, .14);
    color: #cbd5e1;
    font-size: .8rem;
    word-break: break-word;
}

.preview-state-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: .55rem;
    margin-top: .2rem;
}

.preview-state-btn {
    border: 1px solid rgba(96, 165, 250, .28);
    background: linear-gradient(135deg, rgba(59, 130, 246, .95), rgba(37, 99, 235, .95));
    color: #fff;
    border-radius: 10px;
    padding: .7rem 1rem;
    font-size: .9rem;
    font-weight: 700;
    cursor: pointer;
    font-family: inherit;
    transition: transform .18s ease, background .18s ease, border-color .18s ease;
}

.preview-state-btn:hover {
    transform: translateY(-1px);
    border-color: rgba(147, 197, 253, .42);
    background: linear-gradient(135deg, rgba(59, 130, 246, 1), rgba(29, 78, 216, 1));
}

.preview-empty-icon {
    width: 4rem;
    height: 4rem;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(59, 130, 246, .12);
    border: 1px solid rgba(96, 165, 250, .18);
    color: #93c5fd;
    font-size: 1.5rem;
}

.preview-empty-state h3,
.preview-empty-state p {
    margin: 0;
}

.preview-item {
    border: 1px solid rgba(148, 163, 184, .16);
    border-radius: 16px;
    padding: .8rem;
    background: linear-gradient(180deg, rgba(30, 41, 59, .78), rgba(15, 23, 42, .9));
    box-shadow: 0 16px 32px rgba(2, 6, 23, .2);
    transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}

.preview-item:hover {
    transform: translateY(-2px);
    border-color: rgba(96, 165, 250, .24);
    box-shadow: 0 20px 40px rgba(2, 6, 23, .26);
}

.preview-item.folder {
    cursor: pointer;
    border-color: rgba(96, 165, 250, .26);
    background: linear-gradient(180deg, rgba(37, 99, 235, .15), rgba(15, 23, 42, .88));
}

.preview-item .img-wrap {
    position: relative;
    width: 100%;
    aspect-ratio: 1 / 1;
    background: linear-gradient(180deg, rgba(2, 6, 23, .62), rgba(15, 23, 42, .78));
    border-radius: 12px;
    overflow: hidden;
    display: grid;
    place-items: center;
    border: 1px solid rgba(148, 163, 184, .12);
}

.preview-item__media--interactive {
    cursor: pointer;
}

.preview-item__media--interactive:hover {
    border-color: rgba(96, 165, 250, .3);
}

.folder-icon {
    font-size: 2.6rem;
    line-height: 1;
    color: #93c5fd;
    user-select: none;
    filter: drop-shadow(0 10px 18px rgba(59, 130, 246, .18));
}

.placeholder {
    font-size: .76rem;
    color: var(--text-secondary);
    text-align: center;
    padding: .9rem;
    line-height: 1.45;
}

.placeholder--error {
    display: grid;
    gap: .5rem;
    place-items: center;
    color: #fecaca;
    background: rgba(127, 29, 29, .16);
    width: 100%;
    height: 100%;
    box-sizing: border-box;
}

.placeholder--error i {
    font-size: 1.1rem;
    color: #fca5a5;
}

.placeholder--error span {
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
}

.preview-grid img {
    max-width: 100%;
    max-height: 100%;
    border-radius: 10px;
    display: block;
    object-fit: contain;
}

.media-badge {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 2;
    width: 44px;
    height: 44px;
    border-radius: 999px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(2, 6, 23, .72);
    color: #fff;
    box-shadow: 0 8px 20px rgba(2, 6, 23, .3);
    backdrop-filter: blur(6px);
    pointer-events: none;
}

.media-badge svg {
    width: 18px;
    height: 18px;
    display: block;
    margin-left: 2px;
}

.name {
    margin-top: .8rem;
    font-size: .92rem;
    font-weight: 700;
    color: var(--text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.sub {
    margin-top: .32rem;
    font-size: .78rem;
    color: var(--text-secondary);
    line-height: 1.45;
}

@keyframes previewSpin {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

@keyframes previewSpinHalo {
    from {
        transform: rotate(0deg) scale(1);
        opacity: .72;
    }

    50% {
        transform: rotate(180deg) scale(1.04);
        opacity: 1;
    }

    to {
        transform: rotate(360deg) scale(1);
        opacity: .72;
    }
}

@keyframes previewPulse {
    0% {
        box-shadow: 0 0 0 0 rgba(96, 165, 250, .45);
    }

    70% {
        box-shadow: 0 0 0 10px rgba(96, 165, 250, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(96, 165, 250, 0);
    }
}

@media (max-width: 900px) {
    .preview-hero-card .file-hero-meta {
        gap: .4rem;
    }

    .preview-quick-stats {
        grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    }
}

@media (max-width: 720px) {
    .preview-workspace-head,
    .preview-actions {
        align-items: stretch;
    }

    .preview-status-pill {
        width: fit-content;
    }

    .preview-actions {
        display: grid;
        grid-template-columns: 1fr;
        width: 100%;
    }

    .preview-cta-row {
        display: grid;
        grid-template-columns: 1fr;
        width: 100%;
        gap: .45rem;
        margin-left: 0;
    }

    .preview-hero-head {
        display: grid;
        grid-template-columns: 1fr;
        align-items: stretch;
        gap: .6rem;
    }

    .preview-hero-card .file-action-bar {
        display: grid;
        grid-template-columns: 1fr;
    }

    .preview-btn,
    .preview-inline-btn,
    .preview-hero-card .file-action-btn,
    .preview-cta-row .file-btn-primary,
    .preview-cta-row .file-btn-ghost {
        width: 100%;
    }

    .preview-viewport {
        min-height: 280px;
        padding: .85rem;
    }

    .preview-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: .8rem;
    }
}

@media (max-width: 768px) {
    .preview-desktop-only {
        display: none !important;
    }
}

@media (min-width: 768px) {
    .preview-hero-card .file-hero-body {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 520px) {
    .preview-hero-card,
    .preview-workspace-card {
        padding: .9rem;
    }

    .preview-title {
        font-size: 1.22rem;
    }

    .folder-nav {
        flex-wrap: wrap;
        align-items: flex-start;
    }

    .path {
        white-space: normal;
        flex-wrap: wrap;
    }
}