/* App frame: sidebar, topbar, content area, page grids and the login screen. */

/* ---------- Sidebar ---------- */
.sidebar {
  position: fixed; inset: 0 auto 0 0; width: var(--sidebar-width); z-index: 20;
  display: flex; flex-direction: column; padding: 29px 18px 18px;
  background: var(--surface); border-right: 1px solid var(--border);
  overflow-y: auto; scrollbar-width: thin;
}
.brand { display: flex; gap: 10px; align-items: center; padding: 0 9px 30px; font-family: var(--font-display); font-size: 25px; font-weight: 800; letter-spacing: -1.2px; flex-shrink: 0; }
.brandmark { background: var(--brand); color: var(--on-brand); width: 33px; height: 33px; display: grid; place-items: center; border-radius: 9px; }
.brandmark .icon { width: 21px; height: 21px; }
.workspace { display: flex; align-items: center; gap: 7px; border: 1px solid var(--border); padding: 10px; border-radius: 8px; margin-bottom: 26px; flex-shrink: 0; }
.workspace div:nth-child(2) { flex: 1; }
.workspace b { font-size: var(--text-xs); }
.workspace small { display: block; color: var(--text-3); }
.avatar { width: 26px; min-width: 26px; height: 32px; display: grid; place-items: center; border-radius: var(--radius-sm); background: var(--surface-3); color: var(--text-2); font-weight: 700; font-size: var(--text-xs); }
.eyebrow { color: var(--text-4); font-size: var(--text-xs); font-weight: 700; letter-spacing: 1.3px; text-transform: uppercase; margin: 0 12px 10px; }
.nav-group { margin-bottom: 22px; flex-shrink: 0; }
.nav-link { display: flex; gap: 12px; align-items: center; padding: 10px 13px; border-radius: var(--radius-sm); margin: 3px 0; color: var(--text-3); font-weight: 500; font-size: var(--text-md); }
.nav-link span { line-height: 1.4; }
.nav-link:hover { background: var(--hover); color: var(--text-2); }
.nav-link.active { background: var(--brand-soft); color: var(--brand); font-weight: 650; }
.sidebar-bottom { margin-top: auto; padding-top: 20px; flex-shrink: 0; }

/* ---------- Main column ---------- */
.main { margin-left: var(--sidebar-width); }
.topbar { height: 75px; background: var(--surface); border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; padding: 0 34px; gap: 18px; }
.breadcrumbs { color: var(--text-4); display: flex; align-items: center; gap: 13px; font-size: var(--text-sm); }
.breadcrumbs b { color: var(--text-2); font-weight: 500; }
.top-actions { display: flex; gap: 12px; align-items: center; }
.healthbar { margin: 0 0 26px; display: grid; grid-template-columns: 1fr 1fr 1.3fr 1fr; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md); }
.hcell { padding: 14px 20px; min-width: 0; }
.hcell + .hcell { border-left: 1px solid var(--border); }
.hcell > span { display: block; font-size: var(--text-xs); color: var(--text-3); margin-bottom: 4px; }
.hcell strong { display: flex; align-items: center; gap: 6px; font-size: 17px; font-weight: 600; color: var(--text); }
.hcell strong small { font-size: var(--text-sm); font-weight: 400; color: var(--text-3); }
.hcell strong .icon { width: 16px; height: 16px; }
.hcell strong.success .icon { color: var(--success); }
.hcell strong.warning, .hcell strong.warning .icon { color: var(--warning); }
.hcell strong.danger, .hcell strong.danger .icon { color: var(--danger); }
.hcell strong.mono { font-family: var(--font-mono); font-weight: 500; }
.meter { height: 4px; border-radius: 4px; background: var(--surface-3); margin-top: 8px; overflow: hidden; }
.meter i { display: block; height: 100%; background: var(--brand); border-radius: inherit; }
.content { max-width: var(--content-max); margin: auto; padding: 29px 34px 45px; }
.iconbutton.mobile-toggle, .mobile-shade { display: none; }

/* ---------- Page header & grids ---------- */
.pagehead { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 24px; }
.pagehead h1 { font-family: var(--font-display); font-size: 27px; letter-spacing: -1px; font-weight: 750; margin: 0 0 5px; }
.pagehead p { margin: 0; color: var(--text-3); font-size: var(--text-md); }
.actions { display: flex; align-items: center; gap: 9px; flex-wrap: wrap; }
.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 15px; margin-bottom: 22px; }
.bottom-grid, .settings-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.bottom-grid { margin-top: 22px; }
.formgrid { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
.formgrid .field.full { grid-column: 1 / -1; }
.viewgrid { display: grid; grid-template-columns: minmax(340px, 1fr) 1.35fr; gap: 16px; align-items: start; }
.modal.xl .viewgrid { grid-template-columns: minmax(360px, 1fr) 1.8fr; }

/* ---------- Login ---------- */
.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.login-card { max-width: 470px; width: 100%; padding: 36px; }
.login-card .brand { padding-left: 0; }
.login-card h1 { font-size: 26px; margin: 0 0 6px; }
.login-card form { margin-top: 26px; }
.login-card button[type='submit'] { width: 100%; }

/* ---------- Responsive ---------- */
@media (min-width: 1450px) {
  .content { padding: 35px 45px; }
  .topbar { padding: 0 45px; }
}
@media (max-width: 1150px) {
  :root { --sidebar-width: 205px; }
  .sidebar { padding-left: 12px; padding-right: 12px; }
  .content { padding: 25px 22px; }
  .topbar { padding: 0 22px; }
}
@media (max-width: 900px) {
  :root { --sidebar-width: 190px; }
  .brand { font-size: 23px; }
  .nav-link { padding: 9px; }
  .stats, .healthbar { grid-template-columns: repeat(2, 1fr); }
  .hcell:nth-child(3) { border-left: 0; }
  .hcell:nth-child(n+3) { border-top: 1px solid var(--border); }
  .bottom-grid, .settings-grid, .viewgrid, .modal.xl .viewgrid { grid-template-columns: 1fr; }
  .pagehead { align-items: flex-start; }
  .pagehead h1 { font-size: 24px; }
}
@media (max-width: 650px) {
  .sidebar { transform: translateX(-100%); transition: transform 0.2s; width: 230px; }
  .sidebar.open { transform: translateX(0); }
  .mobile-shade.show { display: block; position: fixed; inset: 0; background: var(--overlay); z-index: 19; }
  .main { margin-left: 0; }
  .topbar { height: 62px; padding: 0 16px; }
  .iconbutton.mobile-toggle { display: inline-flex; }
  .breadcrumbs { gap: 7px; font-size: var(--text-xs); }
  .top-actions { gap: 5px; }
  .content { padding: 22px 16px; }
  .healthbar { margin-bottom: 20px; }
  .hcell:nth-child(3) { border-left: 0; }
  .hcell:nth-child(n+3) { border-top: 1px solid var(--border); }
  .pagehead { flex-wrap: wrap; }
  .pagehead .actions { width: 100%; }
  .stats { gap: 10px; }
  .formgrid { grid-template-columns: 1fr; }
  .login-card { padding: 24px; }
}