/* ============================================================================
   SNBD HOST — APPLICATION SHELL
   Fixed sidebar + sticky topbar + content column.
   Load after snbd-system.css.
   ========================================================================== */

/* ------------------------------------------------------------------ Layout */
#snbd-wrapper {
  display: block;
  min-height: 100vh;
  background: var(--snbd-canvas);
}

#snbd-main {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-width: 0;
  margin-left: var(--snbd-sidebar-w);
  background: var(--snbd-canvas);
  transition: margin-left 200ms var(--snbd-ease);
}

.snbd-content {
  flex: 1;
  width: 100%;
  max-width: calc(var(--snbd-content-max) + (var(--snbd-page-pad) * 2));
  margin: 0 auto;
  padding: var(--snbd-page-pad);
}

.snbd-skip-link {
  position: absolute;
  left: 12px;
  top: -60px;
  z-index: 2000;
  padding: 10px 14px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: #fff;
  background: var(--snbd-red);
  border-radius: var(--snbd-r-sm);
  transition: top 120ms var(--snbd-ease);
}
.snbd-skip-link:focus { top: 12px; color: #fff; text-decoration: none; }

/* ----------------------------------------------------------------- Sidebar */
#snbd-sidebar {
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 1040;
  display: flex;
  flex-direction: column;
  width: var(--snbd-sidebar-w);
  background: var(--snbd-surface);
  border-right: 1px solid var(--snbd-line);
  transition: width 200ms var(--snbd-ease), transform 200ms var(--snbd-ease);
  overflow: hidden;
}

.snbd-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  height: var(--snbd-topbar-h);
  min-height: var(--snbd-topbar-h);
  padding: 0 16px 0 20px;
  border-bottom: 1px solid var(--snbd-line);
}
.snbd-brand__link {
  display: flex;
  align-items: center;
  min-width: 0;
  flex: 1;
  text-decoration: none;
}
.snbd-brand__logo { display: block; height: 28px; width: auto; max-width: 100%; }
.snbd-brand__mark { display: none; }

.snbd-rail-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px; height: 30px;
  flex: 0 0 30px;
  color: var(--snbd-ink-400);
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--snbd-r-xs);
  cursor: pointer;
  transition: all var(--snbd-fast) var(--snbd-ease);
}
.snbd-rail-toggle:hover { color: var(--snbd-ink-900); background: var(--snbd-surface-3); }
.snbd-rail-toggle i { font-size: 1rem; }

.snbd-nav {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 14px 12px;
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: thin;
}
.snbd-nav__group { margin-top: 18px; }
.snbd-nav__group:first-child { margin-top: 0; }
.snbd-nav__label {
  padding: 0 10px 6px;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--snbd-ink-400);
  white-space: nowrap;
}
.snbd-nav__item {
  display: flex;
  align-items: center;
  gap: 10px;
  height: 40px;
  padding: 0 10px;
  border-radius: var(--snbd-r-md);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--snbd-ink-700);
  text-decoration: none;
  white-space: nowrap;
  transition: background var(--snbd-fast) var(--snbd-ease), color var(--snbd-fast) var(--snbd-ease);
}
.snbd-nav__item:hover { background: var(--snbd-surface-3); color: var(--snbd-ink-900); text-decoration: none; }
.snbd-nav__item.active,
.snbd-nav__item[aria-current='page'] {
  color: var(--snbd-red);
  background: var(--snbd-red-soft);
}
.snbd-nav__item.active .snbd-nav__icon,
.snbd-nav__item[aria-current='page'] .snbd-nav__icon { color: var(--snbd-red); }
.snbd-nav__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  flex: 0 0 20px;
  font-size: 1.125rem;
  color: var(--snbd-ink-400);
  transition: color var(--snbd-fast) var(--snbd-ease);
}
.snbd-nav__label-text { overflow: hidden; text-overflow: ellipsis; }
.snbd-nav__badge {
  margin-left: auto;
  padding: 1px 7px;
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--snbd-red);
  background: var(--snbd-red-soft-strong);
  border-radius: var(--snbd-r-pill);
}
.snbd-nav__divider { display: none; }

.snbd-sidebar__foot {
  position: relative;
  padding: 12px;
  border-top: 1px solid var(--snbd-line);
}
/*
   The account menu in the footer inherits the shared popover, which opens
   downward with `right: 0` and a fixed 320px width. In a 272px rail that pushes
   most of the panel past the left edge of the window, where the shell clips it
   and every item reads as "...details". Anchor it to the footer instead, open it
   upward, and let the rail decide the width so it can never leave the panel.
*/
.snbd-sidebar__foot .snbd-popover {
  top: auto;
  bottom: calc(100% + 6px);
  left: 0;
  right: 0;
  width: auto;
  max-height: min(60vh, 420px);
  overflow-y: auto;
}
/* The collapsed rail is 72px wide, so an in-panel menu would be unreadable.
   Fixed positioning escapes the sidebar's `overflow: hidden` and opens the menu
   beside the rail while the rail itself stays put. */
html.snbd-rail .snbd-sidebar__foot .snbd-popover {
  position: fixed;
  top: auto;
  right: auto;
  left: calc(var(--snbd-sidebar-rail) + 10px);
  bottom: 16px;
  width: 248px;
}
.snbd-user {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 8px;
  font-family: var(--snbd-font-text);
  text-align: left;
  background: transparent;
  border: 0;
  border-radius: var(--snbd-r-md);
  cursor: pointer;
  text-decoration: none;
  transition: background var(--snbd-fast) var(--snbd-ease);
}
.snbd-user:hover { background: var(--snbd-surface-3); text-decoration: none; }
.snbd-user__meta { display: flex; flex-direction: column; min-width: 0; flex: 1; }
.snbd-user__name {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--snbd-ink-900);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.snbd-user__email {
  font-size: 0.6875rem;
  color: var(--snbd-ink-500);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.snbd-user__chevron { color: var(--snbd-ink-400); font-size: 1rem; flex: 0 0 auto; }

/* Rail mode (desktop only, persisted by snbd-shell.js) */
html.snbd-rail #snbd-sidebar { width: var(--snbd-sidebar-rail); }
html.snbd-rail #snbd-main { margin-left: var(--snbd-sidebar-rail); }
html.snbd-rail .snbd-brand { padding: 0; justify-content: center; }
html.snbd-rail .snbd-brand__link { flex: 0 0 auto; }
html.snbd-rail .snbd-brand__logo { display: none; }
html.snbd-rail .snbd-brand__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px; height: 34px;
  color: #fff;
  background: var(--snbd-red);
  border-radius: var(--snbd-r-sm);
  font-family: var(--snbd-font-display);
  font-size: 0.9375rem;
  font-weight: 800;
}
html.snbd-rail .snbd-rail-toggle { position: absolute; right: -13px; background: var(--snbd-surface); border-color: var(--snbd-line); border-radius: 50%; width: 26px; height: 26px; z-index: 2; box-shadow: var(--snbd-e1); }
html.snbd-rail .snbd-nav { padding: 14px 10px; }
html.snbd-rail .snbd-nav__label { display: none; }
html.snbd-rail .snbd-nav__group { margin-top: 0; }
html.snbd-rail .snbd-nav__group + .snbd-nav__group .snbd-nav__divider { display: block; height: 1px; margin: 10px 4px; background: var(--snbd-line); }
html.snbd-rail .snbd-nav__item { justify-content: center; padding: 0; }
html.snbd-rail .snbd-nav__label-text,
html.snbd-rail .snbd-nav__badge { display: none; }
html.snbd-rail .snbd-sidebar__foot { padding: 12px 10px; }
html.snbd-rail .snbd-user { justify-content: center; padding: 6px; }
html.snbd-rail .snbd-user__meta,
html.snbd-rail .snbd-user__chevron { display: none; }

/* Rail item tooltips */
html.snbd-rail .snbd-nav__item { position: relative; }
html.snbd-rail .snbd-nav__item::after {
  content: attr(data-label);
  position: absolute;
  left: calc(100% + 10px);
  top: 50%;
  transform: translateY(-50%) translateX(-4px);
  padding: 6px 9px;
  font-size: 0.75rem;
  font-weight: 600;
  color: #fff;
  background: var(--snbd-ink-900);
  border-radius: var(--snbd-r-xs);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--snbd-fast) var(--snbd-ease), transform var(--snbd-fast) var(--snbd-ease);
  z-index: 3;
}
html.snbd-rail .snbd-nav__item:hover::after,
html.snbd-rail .snbd-nav__item:focus-visible::after { opacity: 1; transform: translateY(-50%) translateX(0); }

/* ------------------------------------------------------------------ Topbar */
#snbd-topbar {
  position: sticky;
  top: 0;
  z-index: 1030;
  display: flex;
  align-items: center;
  gap: var(--snbd-s4);
  height: var(--snbd-topbar-h);
  min-height: var(--snbd-topbar-h);
  padding: 0 var(--snbd-s6);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--snbd-line);
  transition: box-shadow var(--snbd-fast) var(--snbd-ease);
}
#snbd-topbar.is-scrolled { box-shadow: var(--snbd-e1); }

.snbd-topbar__left,
.snbd-topbar__right {
  display: flex;
  align-items: center;
  gap: var(--snbd-s2);
  flex: 1 1 0;
  min-width: 0;
}
.snbd-topbar__right { justify-content: flex-end; }

.snbd-icon-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  flex: 0 0 36px;
  color: var(--snbd-ink-500);
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--snbd-r-sm);
  cursor: pointer;
  transition: all var(--snbd-fast) var(--snbd-ease);
}
.snbd-icon-btn:hover { color: var(--snbd-ink-900); background: var(--snbd-surface-3); }
.snbd-icon-btn i { font-size: 1.125rem; }
.snbd-icon-btn__badge {
  position: absolute;
  top: 3px; right: 2px;
  min-width: 16px;
  height: 16px;
  padding: 0 4px;
  font-size: 0.625rem;
  font-weight: 700;
  line-height: 16px;
  text-align: center;
  color: #fff;
  background: var(--snbd-red);
  border: 2px solid var(--snbd-surface);
  border-radius: var(--snbd-r-pill);
}

.snbd-crumbs {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
  font-size: 0.75rem;
  color: var(--snbd-ink-400);
  white-space: nowrap;
  overflow: hidden;
}
.snbd-crumbs a { color: var(--snbd-ink-500); font-weight: 500; }
.snbd-crumbs a:hover { color: var(--snbd-red); text-decoration: none; }
.snbd-crumbs__sep { opacity: 0.5; }
.snbd-crumbs__current { font-weight: 600; color: var(--snbd-ink-900); overflow: hidden; text-overflow: ellipsis; }

.snbd-search {
  position: relative;
  display: flex;
  align-items: center;
  flex: 0 1 400px;
  min-width: 0;
}
.snbd-search__icon {
  position: absolute;
  left: 11px;
  font-size: 0.9375rem;
  color: var(--snbd-ink-400);
  pointer-events: none;
}
.snbd-search input {
  width: 100%;
  height: 36px;
  padding: 0 44px 0 34px;
  font-family: var(--snbd-font-text);
  font-size: 0.8125rem;
  color: var(--snbd-ink-900);
  background: var(--snbd-surface-2);
  border: 1px solid var(--snbd-line);
  border-radius: var(--snbd-r-md);
  outline: none;
  transition: all var(--snbd-fast) var(--snbd-ease);
}
.snbd-search input::placeholder { color: var(--snbd-ink-400); }
.snbd-search input:focus {
  background: var(--snbd-surface);
  border-color: var(--snbd-red);
  box-shadow: 0 0 0 3px var(--snbd-red-ring);
}
.snbd-search kbd {
  position: absolute;
  right: 9px;
  min-width: 20px;
  padding: 2px 5px;
  font-family: var(--snbd-font-text);
  font-size: 0.6875rem;
  font-weight: 600;
  text-align: center;
  color: var(--snbd-ink-400);
  background: var(--snbd-surface);
  border: 1px solid var(--snbd-line);
  border-radius: 5px;
  pointer-events: none;
}
.snbd-search input:focus + kbd { opacity: 0; }

.snbd-topbar__actions { display: flex; align-items: center; gap: var(--snbd-s2); margin-left: var(--snbd-s2); }

.snbd-account {
  position: relative;
  display: flex;
  align-items: center;
}
.snbd-account__btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 36px;
  padding: 0 8px 0 4px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--snbd-r-pill);
  cursor: pointer;
  transition: all var(--snbd-fast) var(--snbd-ease);
}
.snbd-account__btn:hover,
.snbd-account__btn[aria-expanded='true'] { background: var(--snbd-surface-3); border-color: var(--snbd-line); }
.snbd-account__name { font-size: 0.8125rem; font-weight: 600; color: var(--snbd-ink-900); max-width: 110px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.snbd-account__chevron { font-size: 0.875rem; color: var(--snbd-ink-400); }

/* Generic popover used by notifications + account */
.snbd-popover {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  z-index: 1100;
  display: none;
  width: 320px;
  background: var(--snbd-surface);
  border: 1px solid var(--snbd-line);
  border-radius: var(--snbd-r-md);
  box-shadow: var(--snbd-e2);
  overflow: hidden;
}
.snbd-popover.is-open { display: block; }
.snbd-popover__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  border-bottom: 1px solid var(--snbd-line);
  font-size: 0.8125rem;
  font-weight: 700;
}
.snbd-popover__body { max-height: 320px; overflow-y: auto; }
.snbd-popover__foot {
  display: block;
  padding: 10px 14px;
  border-top: 1px solid var(--snbd-line);
  font-size: 0.75rem;
  font-weight: 600;
  text-align: center;
  color: var(--snbd-red);
  background: var(--snbd-surface-2);
}
.snbd-popover__foot:hover { background: var(--snbd-surface-3); text-decoration: none; }
.snbd-popover .snbd-menu { border: 0; border-radius: 0; box-shadow: none; width: 100%; }

.snbd-notif-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 11px 14px;
  border-bottom: 1px solid var(--snbd-line);
  text-decoration: none;
}
.snbd-notif-item:last-child { border-bottom: 0; }
.snbd-notif-item:hover { background: var(--snbd-surface-2); text-decoration: none; }
.snbd-notif-item__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px; height: 30px;
  flex: 0 0 30px;
  border-radius: var(--snbd-r-sm);
  background: var(--snbd-surface-3);
  color: var(--snbd-ink-500);
  font-size: 0.9375rem;
}
.snbd-notif-item--warn .snbd-notif-item__icon { background: var(--snbd-warn-soft); color: var(--snbd-warn); }
.snbd-notif-item--bad .snbd-notif-item__icon { background: var(--snbd-bad-soft); color: var(--snbd-bad); }
.snbd-notif-item__title { display: block; font-size: 0.8125rem; font-weight: 600; color: var(--snbd-ink-900); }
.snbd-notif-item__meta { display: block; font-size: 0.75rem; color: var(--snbd-ink-500); }
.snbd-notif-empty { padding: 22px 14px; text-align: center; font-size: 0.8125rem; color: var(--snbd-ink-500); }

/* Mobile off-canvas controls */
.snbd-backdrop {
  position: fixed;
  inset: 0;
  z-index: 1035;
  background: rgba(20, 22, 26, 0.45);
  opacity: 0;
  visibility: hidden;
  transition: opacity 200ms var(--snbd-ease), visibility 200ms;
}
.snbd-backdrop.is-open { opacity: 1; visibility: visible; }

/* --------------------------------------------------------------- Responsive */
@media (max-width: 1199px) {
  html.snbd-rail #snbd-sidebar { width: var(--snbd-sidebar-w); }
  html.snbd-rail #snbd-main { margin-left: var(--snbd-sidebar-w); }
  html.snbd-rail .snbd-brand { padding: 0 16px 0 20px; justify-content: flex-start; }
  html.snbd-rail .snbd-brand__logo { display: block; }
  html.snbd-rail .snbd-brand__mark { display: none; }
  html.snbd-rail .snbd-nav { padding: 14px 12px; }
  html.snbd-rail .snbd-nav__label { display: block; }
  html.snbd-rail .snbd-nav__item { justify-content: flex-start; padding: 0 10px; }
  html.snbd-rail .snbd-nav__label-text,
  html.snbd-rail .snbd-nav__badge { display: inline; }
  html.snbd-rail .snbd-nav__badge { display: inline-block; }
  html.snbd-rail .snbd-sidebar__foot { padding: 12px; }
  html.snbd-rail .snbd-user { justify-content: flex-start; padding: 8px; }
  html.snbd-rail .snbd-user__meta { display: flex; }
  html.snbd-rail .snbd-user__chevron { display: inline-flex; }
  html.snbd-rail .snbd-nav__item::after { display: none; }
  .snbd-rail-toggle { display: none; }
}

@media (max-width: 1024px) {
  #snbd-sidebar {
    width: 288px;
    transform: translateX(-100%);
    box-shadow: var(--snbd-e2);
    z-index: 1060;
  }
  #snbd-sidebar.is-open { transform: translateX(0); }
  #snbd-main,
  html.snbd-rail #snbd-main { margin-left: 0; }
  html.snbd-rail #snbd-sidebar { width: 288px; transform: translateX(-100%); }
  html.snbd-rail #snbd-sidebar.is-open { transform: translateX(0); }
  #snbd-topbar { padding: 0 var(--snbd-s4); gap: var(--snbd-s3); }
  .snbd-content { padding: var(--snbd-s6); }
  .snbd-search { display: none; }
  .snbd-topbar__right { flex: 0 0 auto; }
  .snbd-topbar__left { flex: 1 1 auto; }
}

@media (min-width: 1025px) {
  .snbd-menu-btn { display: none; }
}

@media (min-width: 1025px) and (max-width: 1199px) {
  .snbd-rail-toggle { display: none; }
}

@media (max-width: 767px) {
  #snbd-topbar { padding: 0 var(--snbd-s3); }
  .snbd-content { padding: var(--snbd-s4); }
  .snbd-account__name { display: none; }
  .snbd-crumbs { display: none; }
  .snbd-topbar__left { flex: 0 0 auto; }
  .snbd-topbar__right { flex: 1 1 auto; }
  .snbd-search { display: none; }
  .snbd-order-btn { display: none; }
  .snbd-popover { width: min(320px, calc(100vw - 24px)); right: -4px; }
}

/* Print: the shell chrome never belongs on paper. */
@media print {
  #snbd-sidebar, #snbd-topbar { display: none !important; }
  #snbd-main { margin: 0 !important; }
  .snbd-content { padding: 0 !important; }
}

@media (max-width: 420px) {
  .snbd-topbar__right { gap: 2px; }
  .snbd-icon-btn { width: 34px; flex-basis: 34px; }
  .snbd-account__btn { padding: 0 4px; }
}

/* ============================================================================
   SNBD HOST — SHELL ENHANCEMENT LAYER v1.1
   Richer sidebar + topbar: active-state left-border, section label polish,
   sidebar hover refinements, topbar search focus glow.
   ============================================================================ */

/* Active nav item: left accent bar (SaaS product signature) */
.snbd-nav__item.active,
.snbd-nav__item[aria-current='page'] {
  position: relative;
  color: var(--snbd-red);
  background: var(--snbd-red-soft);
  font-weight: 700;
}
.snbd-nav__item.active::before,
.snbd-nav__item[aria-current='page']::before {
  content: '';
  position: absolute;
  left: 0; top: 6px; bottom: 6px;
  width: 3px;
  background: var(--snbd-red);
  border-radius: 0 2px 2px 0;
}

/* Nav item hover: subtle left accent */
.snbd-nav__item:not(.active):not([aria-current='page']):hover::before {
  content: '';
  position: absolute;
  left: 0; top: 8px; bottom: 8px;
  width: 2px;
  background: var(--snbd-line-strong);
  border-radius: 0 2px 2px 0;
}
.snbd-nav__item:not(.active):not([aria-current='page']) { position: relative; }

/* Nav icon: inherit colour on hover */
.snbd-nav__item:hover .snbd-nav__icon { color: var(--snbd-ink-700); }

/* Section labels: slightly warmer */
.snbd-nav__label {
  font-size: 0.625rem;
  letter-spacing: 0.1em;
  color: var(--snbd-ink-400);
}

/* Sidebar: very faint left-side gradient edge */
#snbd-sidebar {
  background: linear-gradient(to right, var(--snbd-canvas) 0%, var(--snbd-surface) 8px);
}

/* Topbar: search focus ring */
.snbd-search:focus-within {
  box-shadow: 0 0 0 2px rgba(var(--snbd-red-rgb), 0.2);
  border-color: rgba(var(--snbd-red-rgb), 0.4);
  transition: box-shadow 160ms var(--snbd-ease), border-color 160ms var(--snbd-ease);
}

/* Topbar icon buttons: smooth feedback */
.snbd-icon-btn {
  transition:
    background 120ms var(--snbd-ease),
    color 120ms var(--snbd-ease),
    transform 120ms var(--snbd-ease);
}
.snbd-icon-btn:hover { transform: scale(1.06); }
.snbd-icon-btn:active { transform: scale(0.96); }

/* Account button: softer hover */
.snbd-account__btn:hover .snbd-account__avatar {
  box-shadow: 0 0 0 2px var(--snbd-red);
}

/* Page head: tighter, better rhythm */
.snbd-page-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--snbd-s4);
  margin-bottom: var(--snbd-s6);
  padding-bottom: var(--snbd-s5);
  border-bottom: 1px solid var(--snbd-line);
}
.snbd-page-head__actions {
  display: flex;
  align-items: center;
  gap: var(--snbd-s2);
  flex-shrink: 0;
}

/* Rail collapsed: bigger icon size for scanability */
html.snbd-rail .snbd-nav__icon { font-size: 1.25rem; }