/* App shell — mobile-first (UI-SPECIFICATION.md §A5). */

/* ------------------------------------------------------------- login view */
.login-wrap {
  min-height: 100vh; display: grid; place-items: center; padding: var(--s4);
  background: radial-gradient(1200px 600px at 50% -10%, #1c2f61, var(--navy));
}
.login-card {
  background: var(--card); width: 100%; max-width: 380px;
  padding: var(--s6) var(--s5); border-radius: 16px; box-shadow: var(--shadow-lg);
}
.login-card .brand { font-size: 34px; text-align: center; }
.login-card h1 { font-size: 20px; text-align: center; margin: var(--s2) 0 var(--s1); }
.login-card .sub { color: var(--muted); font-size: var(--fs-small); text-align: center; margin-bottom: var(--s5); }

/* ----------------------------------------------------------------- shell */
.shell { min-height: 100vh; display: flex; flex-direction: column; }

.topbar {
  position: sticky; top: 0; z-index: 30;
  height: var(--header-h); flex: 0 0 var(--header-h);
  background: var(--navy); color: #fff;
  display: flex; align-items: center; gap: var(--s3); padding: 0 var(--s4);
}
.topbar .logo { font-weight: 700; font-size: 15px; display: flex; align-items: center; gap: 8px; }
.topbar .menu-btn {
  color: #cdd6ea; font-size: 22px; line-height: 1; margin-left: -8px;
  min-width: 44px; min-height: 44px;      /* touch target */
  display: inline-flex; align-items: center; justify-content: center;
}
.topbar .user-btn { color: #cdd6ea; font-size: var(--fs-small); display: flex; align-items: center; gap: 6px; padding: 8px; }
.topbar .user-btn:hover { color: #fff; }
@media (min-width: 1024px) { .topbar .menu-btn { display: none; } }

.body { flex: 1; display: flex; min-height: 0; }

/* sidebar: drawer on mobile, fixed on desktop */
.sidebar {
  position: fixed; inset: var(--header-h) auto 0 0; z-index: 40;
  width: var(--sidebar-w); background: var(--navy); color: #cdd6ea;
  padding: var(--s3) var(--s2); display: flex; flex-direction: column; gap: 2px;
  transform: translateX(-100%); transition: transform .18s ease; overflow-y: auto;
}
.sidebar.open { transform: translateX(0); }
@media (min-width: 1024px) {
  .sidebar { position: sticky; top: var(--header-h); height: calc(100vh - var(--header-h)); transform: none; flex: 0 0 var(--sidebar-w); }
}
.scrim { position: fixed; inset: var(--header-h) 0 0 0; background: rgba(0,0,0,.45); z-index: 35; }
@media (min-width: 1024px) { .scrim { display: none; } }

.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 11px 12px; border-radius: var(--radius-sm);
  color: #cdd6ea; font-size: 14px; font-weight: 500; width: 100%; text-align: left;
  min-height: 44px;
}
.nav-item:hover { background: var(--navy-2); color: #fff; }
.nav-item[aria-current="page"] { background: var(--accent); color: #fff; }
.nav-item .ico { width: 20px; text-align: center; flex: 0 0 20px; }
.sidebar .grp { font-size: 11px; text-transform: uppercase; letter-spacing: .06em; color: #7f8fb5; padding: var(--s3) 12px var(--s1); }

.main { flex: 1; min-width: 0; padding: var(--s4); }
@media (min-width: 1024px) { .main { padding: var(--s5) var(--s6); } }

.page-head { margin-bottom: var(--s4); }
.page-head h1 { margin-bottom: 2px; }
.page-head .sub { color: var(--muted); font-size: var(--fs-small); }
.page-head-row { display: flex; align-items: flex-start; gap: var(--s3); flex-wrap: wrap; }
.page-head-row .actions { margin-left: auto; display: flex; gap: var(--s2); flex-wrap: wrap; }

.section-gap { margin-top: var(--s5); }