/* =============================================================================
   shell.css
   app frame, sidebars, top bars, page content, and footer
============================================================================= */


/* =======================================
   APP GRID
========================================== */

/* main app grid, fixed sidebar plus flexible content */
.la-app {
    min-height: 100vh;
    display: grid;
    grid-template-columns: var(--la-sidebar) minmax(0, 1fr);
    background: var(--la-page);
}

/* =======================================
   SIDEBAR
========================================== */

/* left sidebar, sticky and self scrolling */
.la-sidebar {
    position: sticky;
    top: 0;
    height: 100vh;
    overflow: auto;
    display: flex;
    flex-direction: column;
    padding: var(--la-5) var(--la-4);
    border-right: 1px solid var(--la-border);
    background: var(--la-surface-subtle);
}

/* =======================================
   BRAND LOCKUP
========================================== */

/* logo plus product name row */
.la-brandlockup {
    display: flex;
    align-items: center;
    gap: var(--la-3);
    padding: 0 var(--la-2) var(--la-5);
    border-bottom: 1px solid var(--la-border);
}

/* brand icon size */
.la-brandmark {
    width: 38px;
    height: 38px;
    flex: none;
}

/* stacked brand text */
.la-brandtext {
    display: grid;
    gap: 0;
    min-width: 0;
}

/* main app or product name */
.la-brandname {
    color: var(--la-ink);
    font-size: var(--la-text-lg);
    font-weight: var(--la-weight-strong);
    line-height: var(--la-line-title);
    letter-spacing: -0.02em;
}

/* small note under the brand name */
.la-brandnote {
    color: var(--la-muted);
    font-size: var(--la-text-xs);
    line-height: var(--la-line-base);
}

/* small note pinned near the bottom of the sidebar */
.la-sidebar-note {
    margin-top: auto;
    padding-top: var(--la-4);
    border-top: 1px solid var(--la-border);
    color: var(--la-muted);
    font-size: var(--la-text-xs);
    line-height: var(--la-line-base);
}

/* =======================================
   MAIN COLUMN AND TOPBAR
========================================== */

/* main column, topbar then page content then optional footer */
.la-main {
    min-width: 0;
    display: grid;
    grid-template-rows: auto 1fr auto;
    background: var(--la-page);
}

/* sticky topbar for the main app shell */
.la-topbar {
    position: sticky;
    top: 0;
    z-index: var(--la-z-topbar);
    min-height: 58px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--la-4);
    padding: 0 var(--la-6);
    border-bottom: 1px solid var(--la-border);
    background: var(--la-page);
    background: color-mix(in srgb, var(--la-page) 60%, transparent);
    -webkit-backdrop-filter: blur(2px);
    backdrop-filter: blur(2px);
}

/* action group on the right side of the topbar */
.la-topbar-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    flex-wrap: wrap;
    gap: var(--la-3);
}

/* compact user display in the topbar */
.la-user-menu {
    display: flex;
    align-items: center;
    gap: var(--la-2);
    padding: var(--la-1) var(--la-2);
    border: 1px solid transparent;
    border-radius: var(--la-radius-sm);
    background: none;
    color: var(--la-ink-soft);
    font-family: var(--la-font);
    font-size: var(--la-text-sm);
    white-space: nowrap;
    cursor: pointer;
    transition:
        background-color var(--la-transition-fast),
        border-color var(--la-transition-fast),
        color var(--la-transition-fast);
}

.la-user-menu:hover,
.la-user-menu:focus-visible {
    background: var(--la-surface-subtle);
    border-color: var(--la-border);
    color: var(--la-ink);
    outline: none;
}

/* initials avatar tile */
.la-avatar {
    display: grid;
    place-items: center;
    width: 30px;
    height: 30px;
    flex: none;
    border: 1px solid var(--la-border);
    border-radius: var(--la-radius-sm);
    background: var(--la-surface);
    color: var(--la-ink-soft);
    font-size: var(--la-text-xs);
    font-weight: var(--la-weight-bold);
}

/* =======================================
   CONTENT AREA
========================================== */

/* content area — width controlled by modifier class, standard default */
.la-content {
    width: 100%;
    max-width: var(--la-content-standard);
    margin-inline: auto;
    padding: var(--la-8) var(--la-6) var(--la-12);
}

.la-content--prose { max-width: var(--la-content-prose); }
.la-content--wide  { max-width: var(--la-content-wide); }
.la-content--app   { max-width: none; }

/* =======================================
   RESPONSIVE CORE SHELL
========================================== */

/* stack the main grid shell on tablets */
@media (max-width: 980px) {
    .la-app {
        grid-template-columns: 1fr;
    }

    .la-sidebar {
        position: static;
        height: auto;
        border-right: 0;
        border-bottom: 1px solid var(--la-border);
    }

    .la-content {
        padding-inline: var(--la-4);
    }
}

/* make the real topbar work on narrow screens */
@media (max-width: 720px) {
    .la-topbar {
        position: static;
        min-height: 0;
        align-items: flex-start;
        flex-direction: column;
        padding: var(--la-4);
    }

    .la-topbar-actions {
        width: 100%;
        justify-content: flex-start;
    }

    .la-content {
        padding-top: var(--la-5);
        padding-bottom: var(--la-8);
    }
}

/* =======================================
   SIDEBAR COLLAPSE
========================================== */

/* collapsed sidebar: narrow icon strip */
.la-app.sidebar-collapsed {
    grid-template-columns: 64px minmax(0, 1fr);
}

.la-app.sidebar-collapsed .la-sidebar {
    overflow: visible;
    padding: var(--la-3) var(--la-2);
}

.la-app.sidebar-collapsed .la-brandtext,
.la-app.sidebar-collapsed .la-sidebar-note {
    display: none;
}

.la-app.sidebar-collapsed .la-brandmark {
    width: 30px;
    height: 30px;
}

/* center nav icons and hide link text */
.la-app.sidebar-collapsed .la-nav .la-nav-link {
    justify-content: center;
    padding-left: 0.25rem;
    padding-right: 0.25rem;
    font-size: 0;
}

.la-app.sidebar-collapsed .la-nav-section .la-nav-title {
    display: none;
}

/* keep the code marker visible at normal size */
.la-app.sidebar-collapsed .la-nav .la-nav-link .la-nav-code {
    display: inline-block;
    padding-left: var(--la-2);

}

/* floating toggle button anchored inside the brand lockup */
#sg-sidebar-toggle {
    position: absolute;
    top: 50%;
    right: 12px;
    transform: translateY(-50%);
    width: 30px;
    height: 30px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--la-border-strong);
    border-radius: var(--la-radius-sm);
    background: var(--la-surface);
    color: var(--la-ink);
    box-shadow: 0 6px 18px rgba(15, 23, 42, 0.08);
    cursor: pointer;
    transition:
        background-color var(--la-transition-fast) ease,
        box-shadow var(--la-transition-fast) ease,
        right var(--la-transition-fast) ease;
    z-index: var(--la-z-topbar);
}

#sg-sidebar-toggle svg {
    width: 18px;
    height: 18px;
    transition: transform var(--la-transition-fast) ease;
}

#sg-sidebar-toggle.is-active svg {
    transform: rotate(180deg);
}

/* collapsed state: toggle protrudes just outside the sidebar's right border */
.la-app.sidebar-collapsed #sg-sidebar-toggle {
    position: absolute;
    top: 50%;
    right: -15px;
    left: auto;
    transform: translateY(-50%);
    background: var(--la-brand);
    border-color: var(--la-brand);
    color: #fff;
    box-shadow: 0 8px 28px rgba(15, 23, 42, 0.14);
    z-index: calc(var(--la-z-topbar) + 1);
}

@media (max-width: 980px) {
    .la-app.sidebar-collapsed {
        grid-template-columns: 1fr;
    }

    .la-app.sidebar-collapsed .la-sidebar {
        position: static;
        height: auto;
        overflow: auto;
        padding: var(--la-5);
        border-right: 0;
        border-bottom: 1px solid var(--la-border);
    }

    /* reset toggle to original position on mobile */
    .la-app.sidebar-collapsed #sg-sidebar-toggle {
        position: absolute;
        top: 50%;
        right: 12px;
        left: auto;
        transform: translateY(-50%);
    }
}


/* =======================================
   SITE FOOTER
========================================== */

/* page footer bar */
.la-site-footer {
    margin-top: auto;
    padding: var(--la-4) var(--la-6);
    border-top: 1px solid var(--la-border);
    background: var(--la-surface);
}

/* footer inner row */
.la-site-footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--la-4);
}

/* footer built-by text */
.la-site-footer-built {
    margin: 0;
    color: var(--la-muted);
    font-size: var(--la-text-xs);
    line-height: var(--la-line-base);
}

/* footer brand link */
.la-site-footer-built a {
    color: var(--la-brand);
    font-weight: var(--la-weight-label);
    text-decoration: none;
    transition: color var(--la-transition-fast);
}

/* footer brand link hover */
.la-site-footer-built a:hover {
    color: var(--la-brand-active);
}

/* footer links row */
.la-site-footer-links {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--la-4);
    font-size: var(--la-text-xs);
}

/* footer link */
.la-site-footer-links a {
    display: inline-flex;
    align-items: center;
    color: var(--la-muted);
    text-decoration: none;
    transition: color var(--la-transition-fast);
}

/* footer link hover */
.la-site-footer-links a:hover {
    color: var(--la-brand);
}

/* footer padding on phones */
@media (max-width: 720px) {
    .la-site-footer {
        padding: var(--la-4);
    }
}


/* =======================================
   SHELL SKELETON
   Placeholder elements in the page HTML that hold sidebar + topbar
   space before injectShell fires. Uses real class names so CSS layout
   is correct on first paint. Replaced atomically by injectShell.
========================================== */

.la-shell-skeleton {
    background: var(--la-surface-subtle);
    animation: la-skel-pulse 1.5s ease-in-out infinite;
    pointer-events: none;
}

@keyframes la-skel-pulse {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0.4; }
}