/* Site shell: floating pill nav, tools mega menu, search palette, footer.
   Loaded on every page after components.css. */

/* ---------- File-type tag (shared) ---------- */

.file-tag {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 3.1em;
    padding: 2px 5px;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 600;
    line-height: 1.3;
    letter-spacing: 0.04em;
    color: var(--tag, var(--color-text-secondary));
    background: color-mix(in srgb, var(--tag, var(--color-text-secondary)) 11%, white);
    box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--tag, var(--color-text-secondary)) 22%, transparent);
    flex: none;
}

[data-category="image"] { --tag: var(--tag-image); }
[data-category="pdf"] { --tag: var(--tag-pdf); }
[data-category="file"] { --tag: var(--tag-file); }
[data-category="developer"] { --tag: var(--tag-developer); }
[data-category="text"] { --tag: var(--tag-text); }
[data-category="utility"] { --tag: var(--tag-utility); }

kbd {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 500;
    padding: 1px 6px;
    border-radius: 5px;
    border: 1px solid var(--color-border-strong);
    border-bottom-width: 2px;
    background: var(--color-surface);
    color: var(--color-text-secondary);
    white-space: nowrap;
}

/* ---------- Header ---------- */

[id] {
    scroll-margin-top: 96px;
}

#site-header {
    position: sticky;
    top: 0;
    z-index: 100;
}

.shell-header {
    position: relative;
    padding: 12px 0 0;
    width: min(calc(100% - 24px), var(--container-width));
    margin-inline: auto;
}

.shell-bar {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: var(--space-4);
    height: 58px;
    padding: 0 8px 0 18px;
    border-radius: var(--radius-full);
    background: color-mix(in srgb, var(--color-surface) 86%, transparent);
    border: 1px solid var(--color-border);
    backdrop-filter: saturate(1.4) blur(14px);
    -webkit-backdrop-filter: saturate(1.4) blur(14px);
    transition: box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.shell-header.is-scrolled .shell-bar,
.shell-header.is-open .shell-bar {
    border-color: var(--color-border-strong);
    box-shadow: 0 10px 30px rgba(17, 32, 10, 0.08);
}

.shell-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--color-forest);
    text-decoration: none;
    font-family: var(--font-display);
    font-stretch: var(--font-stretch-display);
    font-weight: 800;
    font-size: 1.125rem;
    letter-spacing: -0.02em;
}

.shell-brand img {
    width: 30px;
    height: 30px;
    border-radius: 8px;
}

.shell-brand-dash {
    color: var(--color-text-muted);
    font-weight: 500;
}

.shell-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2px;
}

.shell-nav-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border-radius: var(--radius-full);
    background: none;
    color: var(--color-text-secondary);
    font: 500 0.9375rem/1 var(--font-family);
    text-decoration: none;
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast);
}

.shell-nav-link:hover,
.shell-nav-link[aria-expanded="true"] {
    background: var(--color-surface-muted);
    color: var(--color-text);
}

.shell-nav-link[aria-current="page"],
.shell-nav-link.is-current {
    color: var(--color-forest);
    background: var(--color-primary-soft);
}

.shell-tools-toggle .fa-solid {
    font-size: 0.7em;
    transition: transform var(--transition-fast);
}

.shell-tools-toggle[aria-expanded="true"] .fa-solid {
    transform: rotate(180deg);
}

.shell-actions {
    display: flex;
    align-items: center;
    gap: 6px;
}

.shell-search {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    height: 40px;
    padding: 0 8px 0 14px;
    border-radius: var(--radius-full);
    border: 1px solid var(--color-border);
    background: var(--color-background);
    color: var(--color-text-muted);
    font: 400 0.875rem/1 var(--font-family);
    cursor: pointer;
    transition: border-color var(--transition-fast), color var(--transition-fast);
}

.shell-search:hover {
    border-color: var(--color-border-strong);
    color: var(--color-text);
}

.shell-search-label {
    min-width: 7.5em;
    text-align: left;
}

.shell-github {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    height: 40px;
    padding: 0 16px;
    border-radius: var(--radius-full);
    background: var(--color-forest);
    color: #fff;
    font: 600 0.875rem/1 var(--font-family);
    text-decoration: none;
    transition: background var(--transition-fast);
}

.shell-github:hover {
    background: var(--color-forest-2);
}

.shell-menu-toggle {
    display: none;
    place-items: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--color-surface-muted);
    color: var(--color-text);
    cursor: pointer;
}

/* ---------- Mega menu ---------- */

.shell-mega {
    position: absolute;
    left: 0;
    right: 0;
    top: calc(100% + 8px);
    max-height: calc(100vh - 110px);
    overflow: auto;
    border-radius: var(--radius-xl);
    background: var(--color-surface);
    border: 1px solid var(--color-border-strong);
    box-shadow: 0 30px 60px rgba(17, 32, 10, 0.14);
    animation: shell-drop 180ms var(--ease-out-quad);
}

.shell-mega[hidden] {
    display: none;
}

@keyframes shell-drop {
    from { opacity: 0; transform: translateY(-6px); }
    to { opacity: 1; transform: none; }
}

.shell-mega-inner {
    padding: var(--space-6);
}

.shell-mega-mobile-links {
    display: none;
}

.shell-mega-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
    gap: var(--space-6) var(--space-4);
}

.shell-mega-group h2 {
    margin: 0 0 var(--space-2);
    padding: 0 10px 8px;
    border-bottom: 2px solid var(--tag);
    font: 600 0.75rem/1 var(--font-mono);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-text-secondary);
}

.shell-tool-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 7px 10px;
    border-radius: var(--radius-sm);
    color: var(--color-text);
    font-size: 0.9375rem;
    text-decoration: none;
}

.shell-tool-link .file-tag {
    display: none;
}

.shell-tool-link:hover {
    background: var(--color-surface-muted);
}

.shell-mega-loading {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

.shell-mega-foot {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    margin-top: var(--space-6);
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-border);
}

.shell-mega-all {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-forest);
    text-decoration: none;
}

.shell-mega-all:hover {
    text-decoration: underline;
    text-underline-offset: 3px;
}

.shell-mega-hint {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

/* ---------- Nav: gliding indicator, count badge, home state ---------- */

.shell-nav {
    position: relative;
}

.shell-nav-link {
    position: relative;
    z-index: 1;
    height: 36px;
    padding: 0 14px;
}

.shell-nav-indicator {
    position: absolute;
    top: 50%;
    left: 0;
    z-index: 0;
    height: 36px;
    margin-top: -18px;
    border-radius: var(--radius-full);
    background: var(--color-surface-muted);
    opacity: 0;
    pointer-events: none;
    transition:
        transform 280ms cubic-bezier(0.3, 0.7, 0.2, 1),
        width 280ms cubic-bezier(0.3, 0.7, 0.2, 1),
        opacity 160ms ease,
        background-color 160ms ease;
}

.shell-nav-indicator.is-current {
    background: var(--color-primary-soft);
}

.shell-nav.has-indicator .shell-nav-link,
.shell-nav.has-indicator .shell-nav-link:hover,
.shell-nav.has-indicator .shell-nav-link[aria-expanded="true"],
.shell-nav.has-indicator .shell-nav-link[aria-current="page"],
.shell-nav.has-indicator .shell-nav-link.is-current {
    background: transparent;
}

.shell-nav.has-indicator .shell-nav-link:hover,
.shell-nav.has-indicator .shell-nav-link[aria-expanded="true"] {
    color: var(--color-text);
}

.shell-tools-count {
    padding: 3px 6px;
    border-radius: var(--radius-full);
    background: var(--color-forest);
    color: var(--color-lime);
    font: 600 0.6875rem/1 var(--font-mono);
}

.shell-tools-count:empty {
    display: none;
}

/* On the home page the bar sits on the hero until you scroll or open it. */
.shell-header.is-home:not(.is-scrolled):not(.is-open) .shell-bar {
    background: transparent;
    border-color: transparent;
    box-shadow: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
}

/* Invisible bridge over the gap between bar and menu, so moving the
   pointer down never closes a hover-opened menu. */
.shell-header.is-open::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    height: 12px;
}

/* ---------- Mega menu: category rail, tool panel, promo ---------- */

.shell-mega-layout {
    display: grid;
    grid-template-columns: 220px minmax(0, 1fr) 250px;
    height: min(500px, calc(100vh - 190px));
    margin: calc(var(--space-6) * -1) calc(var(--space-6) * -1) 0;
    border-bottom: 1px solid var(--color-border);
}

.shell-mega:has(.shell-mega-layout) {
    overflow: hidden;
}

.shell-mega-rail {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 16px 12px;
    border-right: 1px solid var(--color-border);
    background: var(--color-background);
    overflow-y: auto;
}

.shell-mega-rail [role="tab"] {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 10px 12px;
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--color-text-secondary);
    font: 600 0.9375rem/1.2 var(--font-family);
    text-align: left;
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast);
}

.shell-mega-rail [role="tab"]:hover {
    color: var(--color-text);
    background: var(--color-surface-muted);
}

.shell-mega-rail [role="tab"][aria-selected="true"] {
    color: var(--color-forest);
    background: var(--color-surface);
    box-shadow: 0 1px 2px rgba(17, 32, 10, 0.08), inset 0 0 0 1px var(--color-border);
}

.shell-mega-rail-name {
    flex: 1;
}

.shell-mega-rail-count {
    font: 500 0.75rem/1 var(--font-mono);
    color: var(--color-text-muted);
}

.shell-mega-panel {
    display: flex;
    flex-direction: column;
    min-height: 0;
    padding: 18px 20px 20px;
    overflow-y: auto;
    overscroll-behavior: contain;
}

.shell-mega-panel-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: var(--space-4);
    margin-bottom: 12px;
    padding: 0 10px 12px;
    border-bottom: 2px solid var(--tag, var(--color-border));
}

.shell-mega-panel-head p {
    margin: 0;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.shell-mega-panel-all {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    flex: none;
    font: 600 0.8125rem/1 var(--font-family);
    color: var(--color-forest);
    text-decoration: none;
}

.shell-mega-panel-all:hover {
    text-decoration: underline;
    text-underline-offset: 3px;
}

.shell-mega-panel-all .fa-solid {
    font-size: 0.75em;
}

.shell-mega-items {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 2px 8px;
    margin: 0;
    padding: 0;
    list-style: none;
    animation: shell-panel-in 180ms ease;
}

@keyframes shell-panel-in {
    from { opacity: 0; transform: translateX(-4px); }
    to { opacity: 1; transform: none; }
}

.shell-mega-item {
    display: grid;
    grid-template-columns: 38px minmax(0, 1fr);
    align-items: center;
    gap: 12px;
    padding: 9px 10px;
    border-radius: var(--radius-md);
    color: inherit;
    text-decoration: none;
    transition: background var(--transition-fast);
}

.shell-mega-item:hover,
.shell-mega-item:focus-visible {
    background: var(--color-surface-muted);
}

.shell-mega-item[aria-current="page"] {
    background: var(--color-primary-soft);
}

.shell-mega-icon {
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: color-mix(in srgb, var(--tag, var(--color-forest)) 11%, white);
    color: var(--tag, var(--color-forest));
    font-size: 0.9375rem;
    transition: transform var(--transition-fast);
}

.shell-mega-item:hover .shell-mega-icon {
    transform: scale(1.06);
}

.shell-mega-text {
    display: grid;
    gap: 2px;
    min-width: 0;
}

.shell-mega-name {
    font: 600 0.9375rem/1.25 var(--font-family);
    color: var(--color-text);
}

.shell-mega-desc {
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    font-size: 0.8125rem;
    line-height: 1.35;
    color: var(--color-text-muted);
}

.shell-mega-promo {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin: 12px;
    padding: 20px;
    border-radius: var(--radius-lg);
    background: var(--color-forest);
    color: #dce8cf;
    overflow-y: auto;
}

.shell-mega-promo-kicker {
    margin: 0;
    font: 500 0.75rem/1 var(--font-mono);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-lime);
}

.shell-mega-promo-title {
    margin: 0;
    font-family: var(--font-display);
    font-stretch: var(--font-stretch-display);
    font-weight: 800;
    font-size: 1.125rem;
    line-height: 1.2;
    letter-spacing: -0.015em;
    color: #fff;
}

.shell-mega-promo-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    width: fit-content;
    padding: 8px 14px;
    border-radius: var(--radius-full);
    background: var(--color-lime);
    color: var(--color-forest);
    font: 600 0.8125rem/1 var(--font-family);
    text-decoration: none;
}

.shell-mega-promo-link:hover {
    background: #b6f08f;
}

.shell-mega-popular {
    display: grid;
    gap: 2px;
    margin-top: auto;
    padding-top: 14px;
    border-top: 1px solid rgba(220, 232, 207, 0.16);
}

.shell-mega-popular p {
    margin: 0 0 6px;
    font: 500 0.6875rem/1 var(--font-mono);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: #a9bb97;
}

.shell-mega-popular a {
    padding: 4px 0;
    font-size: 0.875rem;
    color: #dce8cf;
    text-decoration: none;
}

.shell-mega-popular a:hover {
    color: #fff;
    text-decoration: underline;
    text-underline-offset: 3px;
}

.shell-mega-promo :focus-visible {
    outline-color: var(--color-lime);
}

@media (min-width: 861px) {
    .shell-mega-grid {
        display: none;
    }

    .shell-mega-foot {
        margin-top: 0;
        padding-top: 14px;
        border-top: 0;
    }
}

@media (max-width: 1100px) and (min-width: 861px) {
    .shell-mega-layout {
        grid-template-columns: 200px minmax(0, 1fr);
    }

    .shell-mega-promo {
        display: none;
    }
}

@media (max-width: 860px) {
    .shell-mega-layout {
        display: none;
    }

    .shell-header.is-open::after {
        display: none;
    }
}

/* ---------- Search palette ---------- */

.shell-palette {
    width: min(640px, calc(100vw - 24px));
    max-height: min(560px, 80vh);
    margin: 12vh auto auto;
    padding: 0;
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-xl);
    background: var(--color-surface);
    color: var(--color-text);
    box-shadow: 0 40px 80px rgba(17, 32, 10, 0.25);
    overflow: hidden;
}

.shell-palette::backdrop {
    background: rgba(17, 32, 10, 0.35);
    backdrop-filter: blur(3px);
}

.shell-palette[open] {
    animation: shell-drop 160ms var(--ease-out-quad);
}

.shell-palette-field {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 18px;
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text-muted);
}

.shell-palette-field input {
    flex: 1;
    min-width: 0;
    border: 0;
    outline: 0;
    background: none;
    font: 400 1.0625rem/1.4 var(--font-family);
    color: var(--color-text);
}

.shell-palette-field input::-webkit-search-cancel-button {
    display: none;
}

.shell-palette-list {
    list-style: none;
    margin: 0;
    padding: 8px;
    max-height: 420px;
    overflow: auto;
}

.shell-palette-list a {
    display: grid;
    grid-template-columns: auto 1fr;
    grid-template-rows: auto auto;
    column-gap: 12px;
    padding: 10px 12px;
    border-radius: var(--radius-md);
    color: inherit;
    text-decoration: none;
}

.shell-palette-list .file-tag {
    grid-row: span 2;
    align-self: center;
}

.shell-palette-name {
    font-weight: 600;
}

.shell-palette-desc {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.shell-palette-list [aria-selected="true"] a {
    background: var(--color-primary-soft);
}

.shell-palette-empty {
    padding: 20px 12px;
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

/* ---------- Footer ---------- */

.shell-footer {
    margin-top: var(--space-24);
    background: var(--color-forest);
    color: #dce8cf;
    overflow: hidden;
}

.shell-footer-inner {
    width: min(calc(100% - 40px), var(--container-width));
    margin-inline: auto;
    padding: var(--space-20) 0 var(--space-8);
}

.shell-footer-lead {
    display: flex;
    flex-wrap: wrap;
    align-items: end;
    justify-content: space-between;
    gap: var(--space-8);
    padding-bottom: var(--space-12);
    border-bottom: 1px solid rgba(220, 232, 207, 0.16);
}

.shell-footer-pitch {
    max-width: 16ch;
    margin: 0;
    font-family: var(--font-display);
    font-stretch: var(--font-stretch-display);
    font-weight: 800;
    font-size: clamp(2rem, 4.2vw, 3.5rem);
    line-height: 1;
    letter-spacing: -0.03em;
    color: #fff;
}

.shell-footer-cta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
}

.shell-footer-button,
.shell-footer-ghost {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    height: 48px;
    padding: 0 22px;
    border-radius: var(--radius-full);
    font: 600 1rem/1 var(--font-family);
    text-decoration: none;
    cursor: pointer;
}

.shell-footer-button {
    background: var(--color-lime);
    color: var(--color-forest);
}

.shell-footer-button:hover {
    background: #b6f08f;
}

.shell-footer-ghost {
    background: transparent;
    color: #fff;
    border: 1px solid rgba(220, 232, 207, 0.35);
}

.shell-footer-ghost:hover {
    border-color: var(--color-lime);
}

.shell-footer-ghost .fa-solid {
    color: var(--color-lime);
}

.shell-footer-columns {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: var(--space-10) var(--space-6);
    padding: var(--space-12) 0;
}

.shell-footer-column {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
}

.shell-footer-column h2 {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0 0 6px;
    font: 600 0.9375rem/1 var(--font-family);
    color: #fff;
}

.shell-footer-column .file-tag {
    color: var(--color-forest);
    background: color-mix(in srgb, var(--tag) 45%, white);
    box-shadow: none;
}

.shell-footer-column a {
    color: #c3d4b2;
    font-size: 0.9375rem;
    text-decoration: none;
}

.shell-footer-column a:hover {
    color: #fff;
    text-decoration: underline;
    text-underline-offset: 3px;
}

.shell-footer-column .shell-footer-more {
    color: var(--color-lime);
}

.shell-footer-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    padding-top: var(--space-6);
    border-top: 1px solid rgba(220, 232, 207, 0.16);
    font-size: var(--font-size-sm);
    color: #a9bb97;
}

.shell-footer-meta p {
    margin: 0;
}

.shell-footer-links {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-2) var(--space-6);
}

.shell-footer-links a,
.shell-footer-clone {
    color: #dce8cf;
    text-decoration: none;
    font: inherit;
    background: none;
    padding: 0;
    cursor: pointer;
}

.shell-footer-links a:hover,
.shell-footer-clone:hover {
    color: #fff;
    text-decoration: underline;
    text-underline-offset: 3px;
}

.shell-footer-clone {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

/* The oversized wordmark sits on the bottom edge, cropped by it. */
.shell-footer-wordmark {
    margin: var(--space-8) 0 -0.1em;
    padding: 0;
    text-align: center;
    font-family: var(--font-display);
    font-stretch: 125%;
    font-weight: 900;
    font-size: 15.2vw;
    line-height: 0.8;
    letter-spacing: -0.045em;
    white-space: nowrap;
    color: var(--color-lime);
    user-select: none;
}

/* ---------- Focus ---------- */

.shell-footer :focus-visible {
    outline-color: var(--color-lime);
}

/* ---------- Responsive ---------- */

@media (max-width: 1060px) {
    .shell-search-label,
    .shell-github span {
        display: none;
    }

    .shell-search {
        padding: 0 10px;
    }

    .shell-github {
        width: 40px;
        padding: 0;
        justify-content: center;
    }
}

@media (max-width: 860px) {
    .shell-nav {
        display: none;
    }

    .shell-bar {
        grid-template-columns: 1fr auto;
    }

    .shell-search kbd {
        display: none;
    }

    .shell-menu-toggle {
        display: grid;
    }

    .shell-mega-mobile-links {
        display: grid;
        gap: 2px;
        margin-bottom: var(--space-5);
        padding-bottom: var(--space-4);
        border-bottom: 1px solid var(--color-border);
    }

    .shell-mega-mobile-links a {
        padding: 10px;
        border-radius: var(--radius-sm);
        font: 600 1.125rem/1.2 var(--font-display);
        font-stretch: var(--font-stretch-display);
        color: var(--color-text);
        text-decoration: none;
    }

    .shell-mega-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .shell-mega-hint {
        display: none;
    }
}

@media (max-width: 520px) {
    .shell-header {
        width: calc(100% - 16px);
        padding-top: 8px;
    }

    .shell-bar {
        padding-left: 14px;
    }

    .shell-github {
        display: none;
    }

    .shell-mega-inner {
        padding: var(--space-4);
    }

    .shell-mega-grid {
        grid-template-columns: 1fr;
    }

    .shell-footer-inner {
        width: calc(100% - 32px);
        padding-top: var(--space-16);
    }

    .shell-footer-columns {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

/* ---------- Floating support button ---------- */

.shell-fab {
    position: fixed;
    right: 20px;
    bottom: 20px;
    z-index: 90;
    display: inline-flex;
    align-items: center;
    gap: 0;
    height: 52px;
    padding: 0 17px;
    border-radius: var(--radius-full);
    background: var(--color-lime);
    color: var(--color-forest);
    font: 600 0.9375rem/1 var(--font-family);
    box-shadow: 0 0 0 1px rgba(17, 32, 10, 0.12), 0 12px 30px rgba(17, 32, 10, 0.28);
    cursor: pointer;
    transition: gap var(--transition-normal), background var(--transition-fast), transform var(--transition-fast);
}

.shell-fab .fa-solid {
    font-size: 1.125rem;
    animation: shell-beat 2.8s ease-in-out 2s 3;
}

.shell-fab-label {
    max-width: 0;
    overflow: hidden;
    white-space: nowrap;
    transition: max-width var(--transition-normal);
}

.shell-fab:hover,
.shell-fab:focus-visible {
    gap: 10px;
    background: #b6f08f;
}

.shell-fab:hover .shell-fab-label,
.shell-fab:focus-visible .shell-fab-label {
    max-width: 6em;
}

.shell-fab:active {
    transform: scale(0.96);
}

@keyframes shell-beat {
    0%, 30%, 60%, 100% { transform: scale(1); }
    15%, 45% { transform: scale(1.22); }
}

@media (max-width: 520px) {
    .shell-fab {
        right: 14px;
        bottom: 14px;
        height: 48px;
        padding: 0 15px;
    }
}

/* Keyboard hints mean nothing on touch-only devices. */
@media (hover: none) and (pointer: coarse) {
    .shell-search kbd,
    .lp-hero-actions kbd,
    .upload-or,
    .shell-mega-hint {
        display: none;
    }
}