.library-main {
    padding-bottom: 88px;
}

.library-hero {
    padding-bottom: 48px;
}

.library-browser {
    display: grid;
    gap: 26px;
    margin-top: 34px;
    padding: clamp(22px, 3vw, 34px);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.7);
    box-shadow: 0 18px 44px rgba(23, 24, 34, 0.08);
    backdrop-filter: blur(18px);
}

.library-toolbar {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 24px;
}

.library-toolbar h2 {
    margin: 7px 0 0;
    font-size: clamp(1.5rem, 3vw, 2.3rem);
    font-weight: 500;
    letter-spacing: -0.045em;
}

.library-toolbar .eyebrow {
    margin: 0;
}

.library-list {
    display: grid;
    gap: 12px;
}

.library-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
    align-items: start;
    gap: 12px;
}

.library-entry {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 14px;
    min-width: 0;
    align-self: start;
    height: fit-content;
    padding: 17px 18px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.6);
    animation: site-card-enter 360ms cubic-bezier(0.22, 1, 0.36, 1) both;
    color: var(--ink);
    text-decoration: none;
    transition: border-color 180ms ease, background-color 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}

.library-grid > .library-entry:nth-child(2) { animation-delay: 40ms; }
.library-grid > .library-entry:nth-child(3) { animation-delay: 80ms; }
.library-grid > .library-entry:nth-child(4) { animation-delay: 120ms; }

.library-entry:hover {
    border-color: rgba(85, 81, 255, 0.34);
    background: var(--surface);
    box-shadow: 0 12px 28px rgba(23, 24, 34, 0.08);
    transform: translateY(-2px);
}

.library-entry-icon {
    display: grid;
    width: 42px;
    height: 42px;
    place-items: center;
    border-radius: 13px;
    background: var(--accent-soft);
    color: var(--accent);
    font-size: 0.63rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.library-entry[data-kind="folder"] .library-entry-icon {
    background: var(--ink);
    color: var(--surface);
}

.library-entry-copy {
    display: grid;
    min-width: 0;
    gap: 4px;
}

.library-entry-copy strong,
.library-entry-copy span {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.library-entry-copy strong {
    font-size: 0.92rem;
    font-weight: 600;
}

.library-entry-copy span {
    color: var(--muted);
    font-size: 0.72rem;
}

.library-entry-arrow {
    color: var(--muted);
    font-size: 1.2rem;
}

.library-folder-card {
    align-self: start;
    min-height: 238px;
}

.library-loading,
.library-error,
.library-empty {
    margin: 0;
    padding: 28px;
    border: 1px dashed var(--line);
    border-radius: var(--radius-sm);
    color: var(--muted);
    text-align: center;
}

.library-preview-dialog {
    width: min(1080px, calc(100vw - 32px));
    max-width: none;
    max-height: calc(100vh - 32px);
    padding: 0;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.library-preview-dialog[open] {
    animation: library-preview-enter 240ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.library-preview-dialog.is-closing {
    animation: library-preview-leave 180ms ease forwards;
}

.library-preview-dialog::backdrop {
    background: rgba(17, 19, 26, 0.34);
    backdrop-filter: blur(7px);
}

.library-preview-dialog.is-closing::backdrop {
    animation: library-preview-backdrop-leave 180ms ease forwards;
}

.library-preview-shell {
    position: relative;
    display: grid;
    grid-template-rows: auto minmax(0, 1fr);
    max-height: calc(100vh - 32px);
}

.library-preview-heading {
    position: relative;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px 60px 17px 22px;
    border-bottom: 1px solid var(--line);
}

.library-preview-heading .eyebrow {
    margin: 0;
}

.library-preview-heading h2 {
    margin: 3px 0 0;
    font-size: clamp(1.2rem, 2.1vw, 1.65rem);
    font-weight: 600;
    letter-spacing: -0.035em;
    overflow-wrap: anywhere;
}

.library-preview-meta {
    margin: 3px 0 0;
    color: var(--muted);
    font-size: 0.78rem;
}

.library-preview-close {
    position: absolute;
    z-index: 4;
    top: 19px;
    right: 19px;
    display: grid;
    width: 34px;
    height: 34px;
    place-items: center;
    border: 1px solid var(--line);
    border-radius: 50%;
    background: rgba(233, 233, 226, 0.62);
    color: var(--muted);
    cursor: pointer;
    font-size: 1.15rem;
    line-height: 1;
    transition: background-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.library-preview-loading {
    position: absolute;
    z-index: 3;
    inset: 0;
    display: grid;
    place-content: center;
    border-radius: inherit;
    background: rgba(255, 255, 255, 0.78);
    backdrop-filter: blur(6px);
    color: var(--ink);
    pointer-events: all;
    text-align: center;
    opacity: 0;
    transition: opacity 180ms ease;
}

.library-preview-loading[hidden] {
    display: none;
}

.library-preview-loading:not([hidden]) {
    opacity: 1;
}

.library-preview-loading-card {
    width: 430px;
    max-width: calc(100vw - 48px);
    min-width: 0;
    transform: translateY(14px) scale(0.97);
    transition: transform 240ms cubic-bezier(0.22, 1, 0.36, 1);
}

.library-preview-loading:not([hidden]) .library-preview-loading-card {
    transform: translateY(0) scale(1);
}

.library-preview-loading-card .eyebrow,
.library-preview-loading-card h2,
.library-preview-loading-card p {
    margin: 0;
}

.library-preview-loading-card .eyebrow {
    margin-top: 18px;
}

.library-preview-loading-card h2 {
    margin-top: 6px;
    font-size: clamp(1.45rem, 4vw, 2rem);
    font-weight: 500;
    letter-spacing: -0.05em;
    line-height: 1.05;
}

.library-preview-loading-card p:last-child {
    margin: 0;
    margin-top: 10px;
    color: var(--muted);
    font-size: 0.82rem;
}

.library-preview-close:hover,
.library-preview-close:focus-visible {
    background: var(--accent-soft);
    color: var(--ink);
}

.library-preview-close:active {
    transform: scale(0.94);
}

.library-preview-access {
    display: grid;
    gap: 18px;
    align-content: center;
    min-height: 300px;
    padding: 36px clamp(24px, 6vw, 72px);
}

.library-preview-access-copy {
    margin: 0;
    color: var(--muted);
}

.library-preview-form {
    display: grid;
    gap: 10px;
    max-width: 640px;
}

.library-preview-form.is-loading {
    opacity: 0.68;
    pointer-events: none;
}

.library-preview-form label {
    color: var(--ink);
    font-size: 0.8rem;
    font-weight: 600;
}

.library-preview-form input {
    width: 100%;
    padding: 13px 15px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: var(--surface);
    color: var(--ink);
    font: inherit;
}

.library-preview-form input:focus {
    border-color: var(--accent);
    outline: 3px solid var(--accent-soft);
}

.library-preview-form button {
    justify-self: start;
    margin-top: 4px;
}

.library-preview-feedback {
    min-height: 1.2em;
    margin: 2px 0 0;
    color: var(--muted);
    font-size: 0.8rem;
}

.library-preview-feedback.is-error {
    color: #a54c49;
}

.library-preview-viewer {
    min-height: 0;
    padding: 18px;
    background: var(--surface);
}

.library-preview-frame {
    display: block;
    width: 100%;
    height: min(76vh, 820px);
    min-height: 480px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: #fff;
}

@keyframes library-preview-enter {
    from { opacity: 0; transform: translateY(10px) scale(0.985); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes library-preview-leave {
    from { opacity: 1; transform: translateY(0) scale(1); }
    to { opacity: 0; transform: translateY(8px) scale(0.985); }
}

@keyframes library-preview-backdrop-leave {
    from { opacity: 1; }
    to { opacity: 0; }
}

@media (max-width: 720px) {
    .library-toolbar {
        align-items: start;
        flex-direction: column;
    }

    .library-entry {
        grid-template-columns: auto minmax(0, 1fr);
    }

    .library-entry-arrow {
        display: none;
    }

    .library-preview-heading {
        padding: 18px 56px 15px 18px;
    }

    .library-preview-access {
        padding: 28px 20px;
    }

    .library-preview-viewer {
        padding: 10px;
    }

    .library-preview-frame {
        min-height: 62vh;
    }
}