/* App shell. A solid header and bounded sidebar keep scroll layers predictable. */
:root { --header-height: 80px; --z-sticky: 20; --z-toast: 40; }
html { scroll-padding-top: calc(var(--header-height) + 24px); scrollbar-gutter: stable; }
body { overflow-x: clip; }
svg { fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.topbar { position: sticky; top: 0; z-index: var(--z-sticky); background: var(--bg); border-bottom: 1px solid var(--border); }
.topbar__inner { display: grid; grid-template-columns: 196px minmax(0, 1fr) auto; gap: 32px; align-items: center; max-width: 1480px; margin: auto; padding: 18px 32px; }
.logo { display: inline-flex; gap: 10px; align-items: center; color: var(--text); font-weight: 700; letter-spacing: -.025em; }
.logo:hover { color: var(--text); text-decoration: none; }
.logo__mark { display: block; width: 36px; height: 36px; flex: none; }
.logo__text { font-size: 19px; }
.topsearch { display: flex; position: relative; min-width: 0; }
.topsearch__icon { position: absolute; left: 15px; top: 13px; width: 19px; height: 19px; color: var(--muted); pointer-events: none; }
.topsearch__input { width: 100%; min-width: 0; border: 1px solid var(--border-ui); border-radius: 10px; padding: 11px 98px 11px 44px; background: var(--surface); color: var(--text); font: inherit; font-size: 14px; }
.topsearch__input::placeholder { color: var(--muted); }
.topsearch__input:focus { border-color: var(--accent); outline: 2px solid var(--accent-dim); outline-offset: 1px; }
.topsearch__btn { position: absolute; right: 3px; top: 3px; bottom: 3px; padding: 0 14px; border: 0; border-radius: 7px; background: var(--surface-2); color: var(--text-2); font: inherit; font-size: 13px; cursor: pointer; }
.topsearch__btn:hover { background: var(--surface-3); color: var(--text); }
.topnav { display: flex; align-items: center; gap: 16px; }
.topnav form { margin: 0; }
.topnav__user { display: flex; align-items: center; gap: 9px; color: var(--text); font-size: 14px; white-space: nowrap; }
.topnav__user:hover { text-decoration: none; }
.topnav__quiet { color: var(--muted); font-size: 13px; }
.avatar { width: 32px; height: 32px; display: grid; place-items: center; background: var(--accent-dim); color: var(--accent); border-radius: 50%; font-size: 14px; font-weight: 600; }
.shell, .shell--wide { width: 100%; display: grid; grid-template-columns: 196px minmax(0, 1fr); gap: 32px; align-items: start; max-width: 1480px; margin: 0 auto; padding: 32px 32px 64px; flex: 1; }
.sidebar { position: sticky; top: calc(var(--header-height) + 24px); max-height: calc(100dvh - var(--header-height) - 48px); overflow-y: auto; overscroll-behavior-y: contain; padding-right: 8px; display: flex; flex-direction: column; gap: 40px; }
.sidenav { display: flex; flex-direction: column; gap: 4px; }
.sidenav__label { margin: 22px 12px 8px; color: var(--muted); font-size: 12px; font-weight: 500; }
.sidenav__item { display: flex; align-items: center; gap: 12px; padding: 11px 12px; min-height: 44px; border-radius: 8px; color: var(--text-2); font-size: 14px; transition: color 180ms var(--ease), background-color 180ms var(--ease); }
.sidenav__item:hover { background: var(--surface); color: var(--text); text-decoration: none; }
.sidenav__item.is-active { color: var(--accent); background: var(--accent-dim); }
.sidenav__item svg { width: 18px; height: 18px; flex: none; }
.sidenav__count { margin-left: auto; color: var(--muted); font-size: 12px; font-variant-numeric: tabular-nums; }
.sidebar__note { padding: 20px 12px 8px; border-top: 1px solid var(--border); }
.sidebar__note p { font-weight: 600; font-size: 15px; line-height: 1.5; margin-bottom: 8px; }
.sidebar__note > span:last-of-type { display: block; font-size: 12px; color: var(--muted); }
.sidebar__note .text-button { display: block; margin-top: 12px; text-align: left; font-size: 12px; }
.content { min-width: 0; }
.site-footer { border-top: 1px solid var(--border); }
.footer-inner { display: grid; grid-template-columns: 1fr auto; gap: 20px 48px; align-items: start; max-width: 1480px; margin: auto; padding: 32px; }
.footer-brand .logo { font-size: 17px; }
.footer-brand p { color: var(--muted); font-size: 13px; margin: 8px 0 0; }
.brand-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); }
.footer-links { display: flex; flex-wrap: wrap; gap: 12px 24px; align-items: center; padding-top: 2px; }
.footer-links a, .footer-links button { color: var(--text-2); font-size: 13px; }
.footer-meta { grid-column: 1 / -1; font-size: 12px; color: var(--muted); margin: 0; }
.text-button { border: 0; background: none; color: var(--accent); padding: 0; min-height: 32px; font: inherit; cursor: pointer; }
.text-button:hover { color: var(--accent-hover); }
@media (max-width: 1100px) {
  .topbar__inner { grid-template-columns: 172px minmax(0, 1fr) auto; gap: 24px; padding-inline: 24px; }
  .shell, .shell--wide { grid-template-columns: 172px minmax(0, 1fr); padding-inline: 24px; gap: 24px; }
  .topnav__quiet { min-height: 44px; }
}
@media (max-width: 760px) {
  :root { --header-height: 128px; }
  .topbar__inner { grid-template-columns: 1fr auto; gap: 12px; padding: 12px 16px; }
  .topsearch { grid-column: 1 / -1; grid-row: 2; }
  .topnav .btn { min-height: 40px; padding: 9px 14px; }
  .logo__text { font-size: 18px; }
  .shell, .shell--wide { grid-template-columns: minmax(0, 1fr); padding: 12px 16px 40px; gap: 24px; }
  .sidebar { position: static; max-height: none; overflow: visible; padding: 0; min-width: 0; }
  .sidenav { flex-direction: row; overflow-x: auto; flex-wrap: nowrap; overscroll-behavior-x: contain; gap: 6px; padding-bottom: 4px; }
  .sidenav__item { flex: 0 0 auto; font-size: 13px; padding: 9px 12px; }
  .sidenav__label, .sidenav__count, .sidebar__note { display: none; }
  .footer-inner { padding: 28px 16px; grid-template-columns: 1fr; gap: 24px; }
  .footer-meta { grid-column: auto; }
  .topnav__user { font-size: 12px; gap: 7px; }
  .topnav { gap: 10px; }
  .topnav__user > span:last-child { display: none; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; } }