/*
 * App shell: floating sidebar card (inline-start = right in RTL), airy top bar,
 * content area, and a bottom nav on phones.
 */

.app {
  display: grid;
  grid-template-columns: calc(var(--sidebar-w) + var(--frame-gap)) minmax(0, 1fr);
  min-height: 100dvh;
}
.app[data-sidebar="collapsed"] { grid-template-columns: calc(var(--sidebar-w-collapsed) + var(--frame-gap)) minmax(0, 1fr); }
.app[data-layout="bare"] { display: block; }
.app[data-layout="bare"] .sidebar,
.app[data-layout="bare"] .topbar,
.app[data-layout="bare"] .bottom-nav { display: none; }

/* ---------- Floating sidebar ---------- */
.sidebar {
  position: sticky;
  inset-block-start: var(--frame-gap);
  block-size: calc(100dvh - 2 * var(--frame-gap));
  margin-block: var(--frame-gap);
  margin-inline-start: var(--frame-gap);
  display: flex;
  flex-direction: column;
  background: var(--c-sidebar);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  z-index: var(--z-drawer);
}
.sidebar__brand {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-5) var(--sp-5) var(--sp-4);
  text-decoration: none;
  color: inherit;
}
.sidebar__brand-text { display: flex; flex-direction: column; line-height: 1.3; min-inline-size: 0; }
.sidebar__brand-name { font-weight: var(--fw-bold); font-size: var(--fs-lg); white-space: nowrap; }
.sidebar__brand-sub { font-size: var(--fs-xs); color: var(--c-text-muted); white-space: nowrap; }

.brand-mark { flex-shrink: 0; inline-size: 46px; block-size: 46px; border-radius: 14px; }

.sidebar__nav {
  flex: 1;
  overflow-y: auto;
  padding: var(--sp-2) var(--sp-4) var(--sp-4);
  scrollbar-width: thin;
  scrollbar-color: var(--c-border) transparent;
}
.nav-group + .nav-group { margin-block-start: var(--sp-3); }
.nav-group__title {
  padding: var(--sp-2) var(--sp-3) var(--sp-1);
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  color: var(--c-text-subtle);
}
.nav-link {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  min-block-size: 48px;
  padding: var(--sp-2) var(--sp-4);
  border-radius: var(--radius-pill);
  color: var(--c-text-muted);
  text-decoration: none;
  font-weight: var(--fw-medium);
  transition: background var(--dur-fast), color var(--dur-fast), box-shadow var(--dur);
}
.nav-link:hover { background: var(--c-surface-sunken); color: var(--c-text); }
.nav-link[aria-current="page"] {
  background: var(--c-nav-active-bg);
  color: var(--c-nav-active-fg);
  box-shadow: var(--shadow-primary);
  font-weight: var(--fw-bold);
}
.nav-link__label { flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.nav-link__dot { inline-size: 8px; block-size: 8px; border-radius: 50%; background: transparent; }
.nav-link[aria-current="page"] .nav-link__dot { background: var(--c-accent); }
[data-theme="dark"] .nav-link[aria-current="page"] .nav-link__dot { background: var(--brand-violet-600); }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .nav-link[aria-current="page"] .nav-link__dot { background: var(--brand-violet-600); }
}

.sidebar__footer {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  padding: var(--sp-3) var(--sp-4) var(--sp-4);
}
/* Promo-style card at the bottom of the sidebar (backup reminder, offline status…) */
.sidebar-card {
  padding: var(--sp-4);
  border-radius: var(--radius-lg);
  background: var(--c-surface-inverse);
  color: var(--c-text-inverse);
}
.sidebar-card__title { font-weight: var(--fw-bold); }
.sidebar-card__text { font-size: var(--fs-xs); opacity: .75; margin-block: var(--sp-1) var(--sp-3); }

/* Collapsed (desktop): icon rail */
.app[data-sidebar="collapsed"] .sidebar__brand-text,
.app[data-sidebar="collapsed"] .nav-link__label,
.app[data-sidebar="collapsed"] .nav-link__dot,
.app[data-sidebar="collapsed"] .nav-group__title,
.app[data-sidebar="collapsed"] .sidebar-card { display: none; }
.app[data-sidebar="collapsed"] .nav-link { justify-content: center; padding-inline: 0; inline-size: 52px; margin-inline: auto; }
.app[data-sidebar="collapsed"] .sidebar__brand { justify-content: center; padding-inline: var(--sp-2); }
.app[data-sidebar="collapsed"] .sidebar__nav { padding-inline: var(--sp-2); }
.app[data-sidebar="collapsed"] .nav-group + .nav-group { border-block-start: 1px solid var(--c-border); padding-block-start: var(--sp-3); }

/* ---------- Main column ---------- */
.app__main { display: flex; flex-direction: column; min-inline-size: 0; }

.topbar {
  position: sticky;
  inset-block-start: 0;
  z-index: var(--z-sticky);
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  min-block-size: var(--topbar-h);
  padding: var(--sp-3) var(--sp-8);
  background: color-mix(in srgb, var(--c-bg) 80%, transparent);
  backdrop-filter: saturate(1.4) blur(14px);
}
.topbar__search { flex: 0 1 380px; }
.topbar__spacer { flex: 1; }
.topbar__actions { display: flex; align-items: center; gap: var(--sp-2); }

/* Round icon buttons in the top bar (settings, bell, theme) */
.icon-btn {
  position: relative;
  flex-shrink: 0;
  display: inline-grid;
  place-items: center;
  inline-size: 46px;
  block-size: 46px;
  border: 0;
  border-radius: 50%;
  background: var(--c-surface);
  color: var(--c-text);
  box-shadow: var(--shadow-sm);
  transition: transform var(--dur-fast), background var(--dur-fast);
}
.icon-btn:hover { background: var(--c-surface-2); transform: translateY(-1px); }
.icon-btn__badge {
  position: absolute; inset-block-start: 10px; inset-inline-end: 11px;
  inline-size: 9px; block-size: 9px; border-radius: 50%;
  background: var(--c-danger); box-shadow: 0 0 0 2px var(--c-surface);
}

/* User chip: avatar + name + role */
.user-chip {
  display: flex; align-items: center; gap: var(--sp-3);
  padding: 4px 4px 4px var(--sp-4);
  border: 0; border-radius: var(--radius-pill);
  background: var(--c-surface); box-shadow: var(--shadow-sm);
  text-align: start; color: inherit;
}
[dir="rtl"] .user-chip { padding: 4px var(--sp-4) 4px 4px; }
.user-chip__text { display: flex; flex-direction: column; line-height: 1.25; white-space: nowrap; }
.user-chip__name { font-weight: var(--fw-bold); font-size: var(--fs-sm); }
.user-chip__role { font-size: var(--fs-xs); color: var(--c-text-muted); }

.content {
  flex: 1;
  inline-size: 100%;
  max-inline-size: var(--content-max);
  margin-inline: auto;
  padding: var(--sp-2) var(--sp-8) var(--sp-10);
}
.content:focus { outline: none; }

/* Page header: big greeting/title on the start side, actions on the end side */
.page-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--sp-4);
  flex-wrap: wrap;
  margin-block-end: var(--sp-6);
}
.page-header__text { display: flex; flex-direction: column; gap: var(--sp-1); }
.page-header__title { font-size: var(--fs-2xl); font-weight: var(--fw-bold); letter-spacing: -0.01em; }
.page-header__sub { color: var(--c-text-muted); }
.page-header__actions { display: flex; gap: var(--sp-2); flex-wrap: wrap; align-items: center; }

.section + .section { margin-block-start: var(--sp-8); }
.section__title { margin-block-end: var(--sp-4); }

/* Dashboard-style bento grid */
.bento { display: grid; gap: var(--sp-5); grid-template-columns: repeat(12, minmax(0, 1fr)); }
.span-3 { grid-column: span 3; } .span-4 { grid-column: span 4; } .span-5 { grid-column: span 5; }
.span-6 { grid-column: span 6; } .span-7 { grid-column: span 7; } .span-8 { grid-column: span 8; }
.span-12 { grid-column: span 12; }
@media (max-width: 1279px) { .span-3 { grid-column: span 6; } .span-4, .span-5, .span-7, .span-8 { grid-column: span 12; } }
@media (max-width: 767px) { .bento > * { grid-column: span 12; } .bento { gap: var(--sp-4); } }

/* ---------- Drawer overlay (tablet/phone) ---------- */
.drawer-overlay {
  position: fixed;
  inset: 0;
  background: var(--overlay);
  z-index: calc(var(--z-drawer) - 1);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur) var(--ease);
}

/* ---------- Bottom nav (phone) ---------- */
.bottom-nav { display: none; }

/* Tablet & phone: sidebar becomes an off-canvas drawer */
@media (max-width: 1023px) {
  .app, .app[data-sidebar="collapsed"] { grid-template-columns: minmax(0, 1fr); }
  .sidebar {
    position: fixed;
    inset-block: var(--sp-3);
    inset-inline-start: var(--sp-3);
    block-size: auto;
    margin: 0;
    inline-size: min(84vw, var(--sidebar-w));
    transform: translateX(calc(100% + var(--sp-4))); /* RTL: off to the right */
    transition: transform var(--dur) var(--ease);
    box-shadow: var(--shadow-lg);
  }
  [dir="ltr"] .sidebar { transform: translateX(calc(-100% - var(--sp-4))); }
  .app[data-drawer="open"] .sidebar { transform: none; }
  .app[data-drawer="open"] .drawer-overlay { opacity: 1; pointer-events: auto; }
  /* collapsed state never applies to the drawer */
  .app[data-sidebar="collapsed"] .sidebar__brand-text,
  .app[data-sidebar="collapsed"] .nav-link__label,
  .app[data-sidebar="collapsed"] .nav-group__title,
  .app[data-sidebar="collapsed"] .sidebar-card { display: revert; }
  .app[data-sidebar="collapsed"] .nav-link { justify-content: flex-start; padding-inline: var(--sp-4); inline-size: auto; }
  .app[data-sidebar="collapsed"] .nav-link__dot { display: block; }
  .app[data-sidebar="collapsed"] .sidebar__brand { justify-content: flex-start; padding-inline: var(--sp-5); }
  .app[data-sidebar="collapsed"] .nav-group + .nav-group { border: 0; padding: 0; }
  .topbar { padding-inline: var(--sp-4); }
  .topbar .topbar__search { display: none; }
  .content { padding: var(--sp-2) var(--sp-4) var(--sp-8); }
  .user-chip__text { display: none; }
  [dir="rtl"] .user-chip, .user-chip { padding: 3px; }
}

@media (max-width: 639px) {
  .content { padding-block-end: calc(88px + var(--sp-4) + env(safe-area-inset-bottom)); }
  .icon-btn { inline-size: 42px; block-size: 42px; }
  .bottom-nav {
    position: fixed;
    inset-inline: var(--sp-3);
    inset-block-end: calc(var(--sp-3) + env(safe-area-inset-bottom));
    z-index: var(--z-sticky);
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    padding: 6px;
    border-radius: var(--radius-pill);
    background: var(--c-surface-inverse);
    box-shadow: var(--shadow-lg);
  }
  .bottom-nav__item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    min-block-size: 58px;
    padding: var(--sp-1);
    border: 0;
    border-radius: var(--radius-pill);
    background: none;
    color: color-mix(in srgb, var(--c-text-inverse) 65%, transparent);
    font-size: 0.75rem;
    font-weight: var(--fw-medium);
    text-decoration: none;
  }
  .bottom-nav__item[aria-current="page"] { background: var(--c-accent); color: #000; font-weight: var(--fw-bold); }
  .page-header { margin-block-end: var(--sp-5); }
  .page-header__title { font-size: var(--fs-xl); }
}

/* ---------- Boot splash ---------- */
.boot {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background: var(--c-bg);
  z-index: var(--z-toast);
  transition: opacity var(--dur) var(--ease);
}
.boot[data-state="done"] { opacity: 0; pointer-events: none; }
.boot__inner { display: flex; flex-direction: column; align-items: center; gap: var(--sp-4); color: var(--c-text-muted); }
.boot__inner .brand-mark { inline-size: 76px; block-size: 76px; border-radius: 22px; animation: boot-pulse 1.4s var(--ease) infinite; }
@keyframes boot-pulse { 50% { transform: scale(.92); } }

/* Cloud sync status in the top bar */
.sync-btn[data-state="ok"] { color: var(--c-success); }
.sync-btn[data-state="syncing"] .icon { animation: spin 1.2s linear infinite; }
.sync-btn[data-state="offline"] { color: var(--c-warning); }
.sync-btn[data-state="error"], .sync-btn[data-state="auth"] { color: var(--c-danger); }