/**
 * TASK:RE app shell: nav, profile/notification menus, mobile bottom nav,
 * workspace sub-nav, embed sidebar, quick-create dialog, task-edit overlay,
 * image lightbox, toasts, skip link and theme switch.
 * Rendered by task/include/shared_header.php; behaviour in cdn/js/taskre-shell.js.
 * All values come from taskre-tokens.css.
 */

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { font-family: var(--taskre-font-sans); background: var(--taskre-bg); color: var(--taskre-text-2); line-height: var(--taskre-leading-body); }
h1, h2, h3, h4, h5, h6 { font-family: var(--taskre-font-sans) !important; }
html.taskre-modal-open, html.taskre-modal-open body { overflow: hidden; }
[hidden] { display: none !important; }

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
}

/* ── Accessibility primitives ─────────────────────────────────────────── */
.taskre-sr-only {
    position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.taskre-skip-link {
    position: absolute; left: var(--taskre-space-4); top: var(--taskre-space-2);
    z-index: var(--taskre-z-lightbox);
    padding: var(--taskre-space-2) var(--taskre-space-4);
    background: var(--taskre-ink-fill); color: var(--taskre-text-inverse);
    border-radius: var(--taskre-radius-btn); font-size: var(--taskre-text-md); font-weight: var(--taskre-weight-medium);
    text-decoration: none; transform: translateY(-200%);
}
.taskre-skip-link:focus { transform: none; }
.taskre-content-anchor { display: block; height: 0; outline: var(--taskre-focus-width) solid transparent; }

/* ── Shared nav ───────────────────────────────────────────────────────── */
.sh-nav { position: sticky; top: 0; z-index: var(--taskre-z-sticky); background: var(--taskre-nav-glass); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-bottom: 1px solid var(--taskre-border); padding: 0 2rem; }
.sh-nav-inner { max-width: var(--taskre-content-width); margin: 0 auto; display: flex; align-items: center; justify-content: space-between; height: 56px; }
.sh-logo { display: flex; align-items: center; gap: .5rem; text-decoration: none; color: var(--taskre-text-2); font-weight: var(--taskre-weight-semibold); font-size: var(--taskre-text-base); letter-spacing: -.02em; }
.taskre-sh-logo-word { color: inherit; }
.taskre-sh-logo-accent { color: var(--taskre-accent); }
.sh-links { display: flex; gap: .25rem; align-items: center; }
.sh-link { text-decoration: none; color: var(--taskre-text-muted); font-size: var(--taskre-text-md); font-weight: var(--taskre-weight-medium); padding: .4rem .85rem; border-radius: var(--taskre-radius-md); transition: background var(--taskre-duration), color var(--taskre-duration); }
.sh-link:hover { background: var(--taskre-surface-2); color: var(--taskre-text-2); }
.sh-link.active { color: var(--taskre-text-2); background: var(--taskre-surface-2); }
.sh-right { display: flex; align-items: center; gap: .75rem; }
.sh-btn-signin { display: inline-flex; align-items: center; padding: .45rem 1.1rem; background: var(--taskre-accent); color: var(--taskre-text-inverse); font-size: var(--taskre-text-md); font-weight: var(--taskre-weight-semibold); border-radius: var(--taskre-radius-md); text-decoration: none; transition: background var(--taskre-duration); min-height: var(--taskre-touch-target); }
.sh-btn-signin:hover { background: var(--taskre-accent-hover); }
.taskre-sh-new-task { border: none; cursor: pointer; font-family: inherit; }

/* ── Global search ───────────────────────────────────────────────────── */
.sh-search { position: relative; display: flex; align-items: center; }
.sh-search input { width: 200px; height: 40px; padding: 0 .7rem 0 2rem; border: 1px solid var(--taskre-border); background: var(--taskre-surface); border-radius: var(--taskre-radius-md); font-size: var(--taskre-text-base); color: var(--taskre-text-2); font-family: inherit; transition: width var(--taskre-duration), border-color var(--taskre-duration), box-shadow var(--taskre-duration); box-sizing: border-box; }
.sh-search input::placeholder { color: var(--taskre-text-muted); }
.sh-search input:focus { width: 260px; border-color: var(--taskre-focus-ring); box-shadow: 0 0 0 3px var(--taskre-focus-glow); outline: var(--taskre-focus-width) solid transparent; }
.sh-search svg { position: absolute; left: .6rem; top: 50%; transform: translateY(-50%); color: var(--taskre-text-muted); pointer-events: none; width: 14px; height: 14px; }
@media (max-width: 900px) { .sh-search input { width: 140px; } .sh-search input:focus { width: 180px; } }

/* ── Notifications ───────────────────────────────────────────────────── */
.sh-notif { position: relative; display: flex; align-items: center; }
.sh-notif-btn { background: none; border: none; cursor: pointer; padding: 10px; border-radius: var(--taskre-radius-md); color: var(--taskre-text-muted); transition: background var(--taskre-duration), color var(--taskre-duration); position: relative; min-width: var(--taskre-touch-target); min-height: var(--taskre-touch-target); display: flex; align-items: center; justify-content: center; }
.sh-notif-btn:hover { background: var(--taskre-surface-2); color: var(--taskre-text-2); }
.sh-notif-badge { position: absolute; top: 4px; right: 4px; min-width: 16px; height: 16px; border-radius: var(--taskre-radius-pill); background: var(--taskre-danger); color: var(--taskre-text-inverse); font-size: var(--taskre-text-2xs); font-weight: var(--taskre-weight-semibold); display: flex; align-items: center; justify-content: center; padding: 0 4px; line-height: 1; font-variant-numeric: tabular-nums; }
.sh-notif-dd { display: none; position: absolute; top: 100%; right: 0; width: 340px; max-height: 420px; background: var(--taskre-surface); border: 1px solid var(--taskre-border); border-radius: var(--taskre-radius-card); box-shadow: var(--taskre-shadow-3); z-index: var(--taskre-z-popover); overflow: hidden; margin-top: 6px; }
.sh-notif-dd.open { display: block; }
.sh-notif-header { display: flex; justify-content: space-between; align-items: center; padding: .75rem 1rem; border-bottom: 1px solid var(--taskre-surface-2); font-size: var(--taskre-text-md); }
.taskre-sh-notif-title { font-size: inherit; font-weight: var(--taskre-weight-semibold); }
.taskre-sh-notif-markall { background: none; border: none; color: var(--taskre-accent-text); font-size: var(--taskre-text-xs); font-weight: var(--taskre-weight-semibold); cursor: pointer; min-height: 32px; padding: 0 .25rem; font-family: inherit; }
.sh-notif-list { max-height: 350px; overflow-y: auto; }
.taskre-sh-notif-empty { padding: 1.5rem; text-align: center; color: var(--taskre-text-muted); font-size: var(--taskre-text-md); }
.sh-notif-item { display: block; width: 100%; text-align: left; font-family: inherit; background: none; border: none; border-bottom: 1px solid var(--taskre-surface-3); padding: .85rem 1rem; font-size: var(--taskre-text-sm); color: var(--taskre-text-secondary); text-decoration: none; transition: background var(--taskre-duration-fast), opacity var(--taskre-duration); cursor: pointer; min-height: var(--taskre-touch-target); }
.sh-notif-item:hover { background: var(--taskre-surface-3); }
.sh-notif-item.unread { background: var(--taskre-accent-soft-2); border-left: 3px solid var(--taskre-accent); }
/* An @mention is addressed at you personally, so it reads apart from the
   "something happened on a task you follow" stream. */
.sh-notif-item.notif-mention { background: var(--taskre-warning-soft); border-left: 3px solid var(--taskre-warning-line); }
.sh-notif-item.notif-mention:hover { background: var(--taskre-warning-soft-2); }
.sh-notif-item.is-leaving { opacity: 0; }
.sh-notif-item .notif-msg { margin-bottom: 2px; }
.sh-notif-item .notif-at { display: inline-block; font-weight: var(--taskre-weight-semibold); color: var(--taskre-warning); margin-right: 5px; }
.sh-notif-item .notif-time { font-size: var(--taskre-text-xs); color: var(--taskre-text-muted); font-variant-numeric: tabular-nums; }

/* ── Profile menu ────────────────────────────────────────────────────── */
.sh-profile { position: relative; }
.sh-avatar { border-radius: 50%; background: var(--taskre-ink-fill); color: var(--taskre-text-inverse); display: flex; align-items: center; justify-content: center; font-size: var(--taskre-text-sm); font-weight: var(--taskre-weight-semibold); cursor: pointer; border: none; transition: opacity var(--taskre-duration); min-width: var(--taskre-touch-target); min-height: var(--taskre-touch-target); width: var(--taskre-touch-target); height: var(--taskre-touch-target); font-family: inherit; }
.sh-avatar:hover { opacity: .85; }
.sh-dd { display: none; position: absolute; right: 0; top: 48px; background: var(--taskre-surface); border: 1px solid var(--taskre-border); border-radius: var(--taskre-radius-card); box-shadow: var(--taskre-shadow-3); min-width: 240px; padding: .5rem 0; z-index: var(--taskre-z-dropdown); }
.sh-dd.open { display: block; }
.sh-dd-name { padding: .6rem 1rem 0; font-weight: var(--taskre-weight-semibold); font-size: var(--taskre-text-md); color: var(--taskre-text-2); }
.sh-dd-email { padding: 0 1rem .5rem; font-size: var(--taskre-text-xs); color: var(--taskre-text-muted); border-bottom: 1px solid var(--taskre-surface-2); overflow-wrap: anywhere; }
.sh-dd a { padding: .65rem 1rem; font-size: var(--taskre-text-md); text-decoration: none; color: var(--taskre-text-3); transition: background var(--taskre-duration-fast); min-height: var(--taskre-touch-target); display: flex; align-items: center; }
.sh-dd a:hover { background: var(--taskre-surface-3); }
.sh-dd a.sh-logout { color: var(--taskre-danger); }
.taskre-sh-dd-section { padding: .6rem 1rem; border-top: 1px solid var(--taskre-surface-2); border-bottom: 1px solid var(--taskre-surface-2); }
.taskre-sh-dd-label { display: block; font-size: var(--taskre-text-xs); font-weight: var(--taskre-weight-medium); color: var(--taskre-text-muted); margin-bottom: .4rem; }

/* Theme switch: a three-way segmented control */
.taskre-theme-switch { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px; padding: 2px; background: var(--taskre-surface-2); border-radius: var(--taskre-radius-btn); }
.taskre-theme-switch button { min-height: 36px; border: none; background: transparent; color: var(--taskre-text-muted); font: inherit; font-size: var(--taskre-text-sm); font-weight: var(--taskre-weight-medium); border-radius: var(--taskre-radius-md); cursor: pointer; }
.taskre-theme-switch button[aria-pressed="true"] { background: var(--taskre-surface); color: var(--taskre-text); box-shadow: var(--taskre-shadow-1); }
@media (pointer: coarse) { .taskre-theme-switch button { min-height: var(--taskre-touch-target); } }

/* ── Page layout ─────────────────────────────────────────────────────── */
.page { max-width: var(--taskre-content-width); margin: 0 auto; padding: 2rem; }
.page-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 2rem; flex-wrap: wrap; gap: .75rem; }
.page-header h1 { font-family: var(--taskre-font-sans); font-size: var(--taskre-text-3xl); font-weight: var(--taskre-weight-semibold); letter-spacing: -.03em; }
.taskre-page-intro { font-size: var(--taskre-text-sm); color: var(--taskre-text-muted); margin-top: -1.25rem; margin-bottom: 1.5rem; max-width: var(--taskre-measure); }
.btn-sm { padding: .5rem 1rem; border-radius: var(--taskre-radius-md); font-size: var(--taskre-text-sm); font-weight: var(--taskre-weight-semibold); border: none; cursor: pointer; background: var(--taskre-ink-fill); color: var(--taskre-text-inverse); text-decoration: none; display: inline-flex; align-items: center; gap: .3rem; white-space: nowrap; min-height: 40px; font-family: inherit; }
.btn-sm:hover { background: var(--taskre-ink-fill-hover); }

/* ── Feed items ──────────────────────────────────────────────────────── */
.feed-item { display: flex; gap: .75rem; padding: .75rem 0; border-bottom: 1px solid var(--taskre-surface-2); align-items: center; }
.feed-item:last-child { border-bottom: none; }
.feed-content { flex: 1; min-width: 0; }
.feed-title { font-size: var(--taskre-text-md); font-weight: var(--taskre-weight-medium); word-break: break-word; overflow-wrap: break-word; }
.feed-meta { font-size: var(--taskre-text-xs); color: var(--taskre-text-muted); margin-top: 2px; }

/* ── Mobile bottom nav ───────────────────────────────────────────────── */
.mob-nav { display: none; position: fixed; bottom: 0; left: 0; right: 0; height: var(--taskre-mob-nav-height); background: var(--taskre-nav-glass); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-top: 1px solid var(--taskre-border); z-index: var(--taskre-z-bottom-nav); padding-bottom: env(safe-area-inset-bottom); }
.mob-nav-inner { display: flex; height: 100%; max-width: 600px; margin: 0 auto; }
.mob-nav-item { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px; text-decoration: none; color: var(--taskre-text-muted); font-size: var(--taskre-text-2xs); font-weight: var(--taskre-weight-medium); letter-spacing: .01em; transition: color var(--taskre-duration); -webkit-tap-highlight-color: transparent; padding: 0 4px; min-height: var(--taskre-touch-target); border: none; background: none; font-family: inherit; cursor: pointer; }
.mob-nav-item svg { width: 22px; height: 22px; stroke-width: 1.8; flex-shrink: 0; }
.mob-nav-item span { line-height: 1; margin-top: 1px; }
.mob-nav-item.active { color: var(--taskre-accent); }
.mob-nav-item.active svg { stroke-width: 2.2; }
.mob-nav-item.is-create { color: var(--taskre-text-2); }

@media (max-width: 768px) {
    .sh-links { display: none; }
    .sh-nav { padding: 0 1rem; }
    .page { padding: 1rem; }
    .page-header h1 { font-size: var(--taskre-text-2xl); }
    .mob-nav { display: flex; }
    body.has-mob-nav { padding-bottom: calc(var(--taskre-mob-nav-height) + env(safe-area-inset-bottom)); }
}
@media (max-width: 600px) {
    .sh-nav { padding: 0 .75rem; }
    .sh-search { display: none; }
    .sh-right { gap: .25rem; }
    /* Anchor menus to the viewport on narrow phones */
    .sh-notif-dd { position: fixed; top: 62px; left: 8px; right: 8px; width: auto; max-width: none; max-height: calc(100vh - 80px - var(--taskre-mob-nav-height)); margin-top: 0; }
    .sh-dd { position: fixed; top: 62px; left: auto; right: 8px; width: 260px; max-width: calc(100vw - 16px); }
}

/* ── Workspace sub-nav: touch target on mobile ───────────────────────── */
@media (max-width: 768px) {
    .ws-subnav-inner { height: var(--taskre-touch-target); }
}

/* ── Dialogs (quick-create task) ─────────────────────────────────────── */
.taskre-modal { position: fixed; inset: 0; z-index: var(--taskre-z-modal); background: var(--taskre-scrim); backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px); display: flex; align-items: center; justify-content: center; padding: var(--taskre-space-4); }
.taskre-dialog { background: var(--taskre-surface); color: var(--taskre-text-2); border-radius: var(--taskre-radius-card); box-shadow: var(--taskre-shadow-pop); max-width: 440px; width: 100%; padding: var(--taskre-space-6); }
.taskre-modal.is-open .taskre-dialog { animation: taskre-dialog-in var(--taskre-duration-slow) var(--taskre-ease); }
@keyframes taskre-dialog-in { from { opacity: 0; transform: scale(.96) translateY(8px); } to { opacity: 1; transform: none; } }
.taskre-dialog:focus { outline: var(--taskre-focus-width) solid transparent; }
.taskre-dialog-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: var(--taskre-space-4); }
.taskre-dialog-title { font-size: var(--taskre-text-base); font-weight: var(--taskre-weight-semibold); color: var(--taskre-text-2); letter-spacing: 0; }
.taskre-icon-btn { display: inline-flex; align-items: center; justify-content: center; width: var(--taskre-touch-target); height: var(--taskre-touch-target); margin: -10px -10px -10px 0; background: none; border: none; border-radius: var(--taskre-radius-md); cursor: pointer; color: var(--taskre-text-muted); }
.taskre-icon-btn:hover { background: var(--taskre-surface-2); color: var(--taskre-text-2); }
.taskre-icon-btn .tr-ico { width: 18px; height: 18px; }
.taskre-field { margin-bottom: var(--taskre-space-4); }
.taskre-label { display: block; font-size: var(--taskre-text-sm); font-weight: var(--taskre-weight-medium); color: var(--taskre-text-secondary); margin-bottom: 6px; }
.taskre-input { width: 100%; min-height: var(--taskre-touch-target); padding: 10px 12px; border: 1px solid var(--taskre-border); border-radius: var(--taskre-radius-btn); font: inherit; font-size: var(--taskre-text-base); color: var(--taskre-text-2); background: var(--taskre-surface); transition: border-color var(--taskre-duration), box-shadow var(--taskre-duration); }
.taskre-input:focus { border-color: var(--taskre-focus-ring); box-shadow: 0 0 0 3px var(--taskre-focus-glow); outline: var(--taskre-focus-width) solid transparent; }
select.taskre-input { cursor: pointer; }
.taskre-form-error { color: var(--taskre-danger); font-size: var(--taskre-text-sm); margin-bottom: var(--taskre-space-3); }
.taskre-dialog-actions { display: flex; gap: var(--taskre-space-2); justify-content: flex-end; margin-top: var(--taskre-space-1); }
.taskre-btn { display: inline-flex; align-items: center; justify-content: center; gap: .4rem; min-height: 40px; padding: 0 var(--taskre-space-4); border-radius: var(--taskre-radius-btn); font: inherit; font-size: var(--taskre-text-sm); font-weight: var(--taskre-weight-semibold); cursor: pointer; border: 1px solid transparent; text-decoration: none; transition: background var(--taskre-duration), border-color var(--taskre-duration), transform var(--taskre-duration) var(--taskre-ease); }
.taskre-btn:active { transform: translateY(1px) scale(.985); }
.taskre-btn:disabled { opacity: .55; cursor: not-allowed; transform: none; }
.taskre-btn--primary { background: var(--taskre-ink-fill); color: var(--taskre-text-inverse); }
.taskre-btn--primary:hover:not(:disabled) { background: var(--taskre-ink-fill-hover); }
.taskre-btn--secondary { background: var(--taskre-surface); color: var(--taskre-text-secondary); border-color: var(--taskre-border); }
.taskre-btn--secondary:hover:not(:disabled) { border-color: var(--taskre-border-hover); }
@media (pointer: coarse) { .taskre-btn { min-height: var(--taskre-touch-target); } }

/* ── Task edit overlay (iframe) ──────────────────────────────────────── */
.te-overlay { position: fixed; inset: 0; background: var(--taskre-scrim); z-index: var(--taskre-z-overlay); backdrop-filter: blur(3px); }
.te-overlay.is-open { animation: taskre-fade var(--taskre-duration) ease; }
@keyframes taskre-fade { from { opacity: 0; } to { opacity: 1; } }
.taskre-te-dialog { position: absolute; inset: 0; }
.te-frame { position: absolute; inset: 0; width: 100%; height: 100%; border: none; background: transparent; opacity: 0; transition: opacity var(--taskre-duration) ease; }
.te-overlay.ready .te-frame { opacity: 1; }
.te-spinner { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 36px; height: 36px; border: 3px solid var(--taskre-glass-control); border-top-color: var(--taskre-on-scrim); border-radius: 50%; animation: taskre-spin .8s linear infinite; pointer-events: none; transition: opacity var(--taskre-duration); }
.te-overlay.ready .te-spinner { opacity: 0; }
@keyframes taskre-spin { to { transform: translate(-50%, -50%) rotate(360deg); } }
[data-edit-task] { cursor: pointer; }

/* ── Image lightbox ──────────────────────────────────────────────────── */
.taskre-lightbox { position: fixed; inset: 0; z-index: var(--taskre-z-lightbox); background: var(--taskre-scrim-strong); display: flex; align-items: center; justify-content: center; padding: 20px; cursor: zoom-out; }
.taskre-lightbox:focus { outline: var(--taskre-focus-width) solid transparent; }
.taskre-lightbox-img { max-width: 100%; max-height: calc(100vh - 80px); border-radius: var(--taskre-radius-chip); box-shadow: var(--taskre-shadow-pop); cursor: default; object-fit: contain; }
.taskre-lightbox-name, .taskre-lightbox-count { position: fixed; left: 50%; transform: translateX(-50%); color: var(--taskre-on-scrim); background: var(--taskre-scrim); border-radius: var(--taskre-radius-pill); pointer-events: none; white-space: nowrap; font-variant-numeric: tabular-nums; }
.taskre-lightbox-name { bottom: 20px; font-size: var(--taskre-text-sm); padding: 5px 14px; max-width: 90vw; overflow: hidden; text-overflow: ellipsis; }
.taskre-lightbox-count { top: 18px; font-size: var(--taskre-text-xs); padding: 4px 12px; }
.taskre-lightbox-btn { position: fixed; display: flex; align-items: center; justify-content: center; width: var(--taskre-touch-target); height: var(--taskre-touch-target); border-radius: 50%; border: none; background: var(--taskre-glass-control); color: var(--taskre-on-scrim); cursor: pointer; }
.taskre-lightbox-btn .tr-ico { width: 22px; height: 22px; }
.taskre-lightbox-btn:focus-visible { outline: var(--taskre-focus-width) solid var(--taskre-on-scrim); outline-offset: 2px; }
.taskre-lightbox-prev { top: 50%; left: 16px; transform: translateY(-50%); }
.taskre-lightbox-next { top: 50%; right: 16px; transform: translateY(-50%); }
.taskre-lightbox-close { top: 16px; right: 20px; }

/* ── Toasts ──────────────────────────────────────────────────────────── */
.taskre-toasts { position: fixed; right: 1.5rem; bottom: 1.5rem; z-index: var(--taskre-z-toast); display: flex; flex-direction: column; align-items: flex-end; gap: var(--taskre-space-2); pointer-events: none; }
.taskre-toast { pointer-events: auto; max-width: min(420px, calc(100vw - 2rem)); padding: .75rem 1.25rem; border-radius: var(--taskre-radius-btn); font-size: var(--taskre-text-sm); font-weight: var(--taskre-weight-medium); color: var(--taskre-text-inverse); background: var(--taskre-ink-fill); box-shadow: var(--taskre-shadow-2); animation: taskre-toast-in var(--taskre-duration) ease; }
.taskre-toast--error { background: var(--taskre-danger); }
.taskre-toast-action { margin-left: var(--taskre-space-3); padding: 0 .25rem; min-height: 1.5rem; border: 0; background: none; color: inherit; font: inherit; font-weight: var(--taskre-weight-semibold); text-decoration: underline; text-underline-offset: .15em; cursor: pointer; }
.taskre-toast--info { background: var(--taskre-accent); }
@keyframes taskre-toast-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
@media (max-width: 768px) {
    body.has-mob-nav .taskre-toasts { bottom: calc(1.5rem + var(--taskre-mob-nav-height)); right: 1rem; }
}

/* ══════════════════════════════════════════════════════════════════════
   Embed mode (/taskapp inside a partner iframe): sidebar layout.
   ══════════════════════════════════════════════════════════════════════ */
html.taskre-embed, html.taskre-embed body { height: 100%; }
body.taskre-embed { display: flex; height: 100%; line-height: var(--taskre-leading-body); }

.em-sidebar { width: 200px; flex-shrink: 0; background: var(--taskre-surface); border-right: 1px solid var(--taskre-border); display: flex; flex-direction: column; height: 100%; position: sticky; top: 0; }
.em-sidebar-logo { padding: 1.1rem 1.25rem .75rem; font-size: var(--taskre-text-sm); font-weight: var(--taskre-weight-semibold); letter-spacing: .04em; color: var(--taskre-text-muted); text-transform: uppercase; }
.em-sidebar-nav { flex: 1; padding: .5rem .75rem; display: flex; flex-direction: column; gap: 2px; overflow-y: auto; }
.em-sidebar-link { display: flex; align-items: center; gap: .6rem; padding: .55rem .75rem; border-radius: var(--taskre-radius-md); font-size: var(--taskre-text-md); font-weight: var(--taskre-weight-medium); color: var(--taskre-text-muted); text-decoration: none; transition: background var(--taskre-duration-fast), color var(--taskre-duration-fast); white-space: nowrap; min-height: 40px; border: none; background: none; font-family: inherit; cursor: pointer; text-align: left; }
.em-sidebar-link:hover { background: var(--taskre-surface-2); color: var(--taskre-text-2); }
.em-sidebar-link.active { background: var(--taskre-accent-soft); color: var(--taskre-accent-text); font-weight: var(--taskre-weight-semibold); }
.em-sidebar-link svg { width: 16px; height: 16px; flex-shrink: 0; }
.em-sidebar-divider { height: 1px; background: var(--taskre-divider); margin: .5rem .75rem; }
.em-ws-subnav { display: flex; flex-direction: column; gap: 1px; padding-left: 1.5rem; }
.em-ws-subnav a { display: flex; align-items: center; padding: .4rem .5rem; border-radius: var(--taskre-radius-chip); font-size: var(--taskre-text-sm); color: var(--taskre-text-muted); text-decoration: none; font-weight: var(--taskre-weight-medium); transition: background var(--taskre-duration-fast), color var(--taskre-duration-fast); min-height: 36px; }
.em-ws-subnav a:hover { background: var(--taskre-surface-2); color: var(--taskre-text-2); }
.em-ws-subnav a.active { color: var(--taskre-accent-text); font-weight: var(--taskre-weight-semibold); }

.em-content { flex: 1; min-width: 0; overflow-y: auto; height: 100%; }
.taskre-embed .twc-layout { max-width: 100%; padding: 1.25rem; }
.taskre-embed .page { max-width: 100%; padding: 1.25rem; }
.taskre-embed .page-header { margin-bottom: 1.5rem; }
.taskre-embed .page-header h1 { font-size: var(--taskre-text-3xl); }

@media (max-width: 640px) {
    body.taskre-embed { flex-direction: column; }
    .em-sidebar { width: 100%; height: auto; border-right: none; border-bottom: 1px solid var(--taskre-border); position: sticky; top: 0; z-index: var(--taskre-z-sticky); }
    .em-sidebar-logo, .em-sidebar-divider, .em-ws-subnav { display: none; }
    .em-sidebar-nav { flex-direction: row; padding: .4rem .5rem; overflow-x: auto; gap: 2px; scrollbar-width: none; }
    .em-sidebar-nav::-webkit-scrollbar { display: none; }
    .em-sidebar-link { flex-direction: column; gap: 2px; font-size: var(--taskre-text-2xs); padding: .4rem .5rem; min-width: 56px; min-height: var(--taskre-touch-target); text-align: center; justify-content: center; }
    .em-sidebar-link svg { width: 18px; height: 18px; }
    .em-content { height: auto; }
}

/* ── Error page and embed notices ────────────────────────────────────── */
.taskre-error { display: grid; place-items: center; min-height: calc(100dvh - var(--taskre-nav-height)); padding: 2rem 1.25rem; }
.taskre-error-inner { text-align: center; max-width: 440px; }
.taskre-error-code { font-family: var(--taskre-font-mono); font-size: var(--taskre-text-sm); letter-spacing: .12em; color: var(--taskre-accent-text); margin-bottom: 1rem; font-variant-numeric: tabular-nums; }
.taskre-error h1 { font-size: var(--taskre-text-3xl); font-weight: var(--taskre-weight-semibold); letter-spacing: -.04em; line-height: 1.08; color: var(--taskre-text); margin: 0 0 .75rem; }
.taskre-error p { font-size: var(--taskre-text-ml); color: var(--taskre-text-muted); margin: 0 0 1.75rem; line-height: 1.6; }
.taskre-notice { padding: 3rem 1.25rem; text-align: center; color: var(--taskre-text-muted); font-size: var(--taskre-text-ml); }
.taskre-notice p { margin-bottom: 1.25rem; }
.taskre-btn--accent { background: var(--taskre-accent); color: var(--taskre-text-inverse); }
.taskre-btn--accent:hover:not(:disabled) { background: var(--taskre-accent-hover); }
.taskre-btn--lg { min-height: var(--taskre-touch-target); padding: 0 1.15rem; font-size: var(--taskre-text-ml); }