/* Application shell: ink sidebar, topbar with breadcrumb, content column, page header. */
.app { display: grid; grid-template-columns: var(--sidebar-w) minmax(0, 1fr); min-height: 100dvh; }

/* ---------- sidebar (always dark) ---------- */
.sidebar {
  position: sticky; top: 0; height: 100dvh; display: flex; flex-direction: column; gap: 18px; padding: 18px 14px 14px;
  background:
    radial-gradient(420px 260px at 0% 0%, color-mix(in srgb, var(--glow-9) 16%, transparent), transparent 70%),
    var(--nav-bg);
  color: var(--nav-text); border-right: 1px solid var(--nav-border); overflow-y: auto;
}
.sidebar .brand { padding: 2px 8px; color: var(--nav-text); }
.sidebar button { box-shadow: none; }

.tenant-switch {
  display: flex; align-items: center; gap: 12px; width: 100%; min-height: 56px; padding: 8px 10px; text-align: left; justify-content: flex-start;
  background: var(--nav-deep); border: 1px solid var(--nav-border); border-radius: var(--r-lg); color: var(--nav-text);
}
.tenant-switch:hover { background: var(--ink-3); border-color: var(--ink-7); }
.tenant-switch .avatar { background: var(--nav-active-bg); color: var(--nav-active); }
.tenant-switch .meta { min-width: 0; flex: 1; display: grid; gap: 2px; }
.tenant-switch .meta .eyebrow { color: var(--nav-muted); }
#tenant-name { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 14px; }
.tenant-switch .icon { color: var(--nav-muted); }

.nav { display: grid; gap: 2px; }
.nav-group + .nav-group { margin-top: 12px; }
.nav-label { padding: 8px 12px 6px; font: 500 10.5px/1 var(--mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--nav-muted); }
.nav button {
  position: relative; justify-content: flex-start; width: 100%; min-height: 40px; border: 0; background: transparent;
  color: var(--nav-muted); font-weight: 500; padding: 0 12px; border-radius: var(--r);
}
.nav button:hover { background: var(--nav-hover); color: var(--nav-text); }
.nav button[aria-current="page"] { background: var(--nav-active-bg); color: var(--nav-active); }
.nav button[aria-current="page"]::before { content: ""; position: absolute; left: -14px; top: 9px; bottom: 9px; width: 3px; border-radius: 0 3px 3px 0; background: var(--nav-active); }
.nav button .badge.preview { margin-left: auto; background: transparent; color: var(--nav-muted); border: 1px solid var(--ink-7); }
.sidebar :focus-visible { outline-color: var(--glow-11); }

.sidebar-foot { margin-top: auto; display: grid; gap: 4px; padding-top: 12px; border-top: 1px solid var(--nav-border); }
.sidebar-foot a, .sidebar-foot button {
  display: flex; align-items: center; gap: 10px; min-height: 36px; padding: 0 12px; border-radius: var(--r); color: var(--nav-muted);
  text-decoration: none; font-weight: 500; font-size: 13px; background: transparent; border: 0; width: 100%; justify-content: flex-start;
}
.sidebar-foot a:hover, .sidebar-foot button:hover { background: var(--nav-hover); color: var(--nav-text); }

/* ---------- main ---------- */
.main { min-width: 0; display: flex; flex-direction: column; background:
  radial-gradient(900px 320px at 18% -80px, color-mix(in srgb, var(--accent) 9%, transparent), transparent 70%), var(--bg); }
.topbar {
  position: sticky; top: 0; z-index: 30; display: flex; align-items: center; gap: 14px; min-height: 60px; padding: 0 32px;
  background: color-mix(in srgb, var(--bg) 82%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border);
}
.crumbs { display: flex; align-items: center; gap: 8px; font-size: 13.5px; color: var(--muted); min-width: 0; }
.crumbs .icon { width: 14px; height: 14px; }
.crumbs strong { color: var(--text); font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.topbar .spacer { flex: 1; }
.topbar .user-btn { gap: 10px; padding: 0 8px 0 4px; border-radius: 999px; min-height: 40px; border-color: var(--border); }
#nav-toggle { display: none; }
.user-btn .who { text-align: left; line-height: 1.2; max-width: 190px; }
.user-btn .who b { display: block; font-size: 13px; font-weight: 600; overflow: hidden; text-overflow: ellipsis; }
.user-btn .who span { display: block; font-size: 11.5px; color: var(--muted); overflow: hidden; text-overflow: ellipsis; }

.content { width: 100%; max-width: var(--content-max); margin: 0 auto; padding: 32px 40px 80px; display: grid; gap: 26px; align-content: start; }
.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.page-head .eyebrow { margin-bottom: 10px; display: block; }
.page-head p { color: var(--muted); margin-top: 8px; max-width: 64ch; font-size: 14.5px; }
.page-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.section { display: grid; gap: 14px; }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.section-head p { color: var(--muted); font-size: 13.5px; margin-top: 3px; }
.tab { display: grid; gap: 26px; }
.scrim { display: none; }

@media (max-width: 1000px) {
  .app { grid-template-columns: 1fr; }
  #nav-toggle { display: inline-flex; }
  .sidebar { position: fixed; inset: 0 auto 0 0; z-index: 70; width: min(300px, 88vw); transform: translateX(-100%); visibility: hidden; transition: transform 200ms var(--ease), visibility 200ms; }
  .app[data-nav="open"] .sidebar { transform: none; visibility: visible; box-shadow: var(--shadow-pop); }
  .app[data-nav="open"] .scrim { display: block; position: fixed; inset: 0; z-index: 60; background: var(--scrim); }
  .topbar { padding: 0 16px; } .content { padding: 22px 16px 64px; }
  .user-btn .who { display: none; }
}