/* =========================================================
   LAYOUT — App shell, Sidebar, Topbar, Mobile-Nav
   ========================================================= */

.app {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  min-height: 100vh;
  background: var(--bg-app);
}
.app.is-collapsed { grid-template-columns: var(--sidebar-w-min) 1fr; }

/* ---------- Sidebar ---------- */
.sidebar {
  background: var(--bg-sidebar);
  color: var(--text-on-dark);
  border-right: 1px solid #111827;
  position: sticky; top: 0;
  height: 100vh;
  display: flex; flex-direction: column;
  overflow: hidden;
}
.sidebar-brand {
  display: flex; align-items: center; gap: var(--sp-3);
  padding: 14px var(--sp-5);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  flex-shrink: 0;
  min-height: var(--topbar-h);
}
.sidebar-brand-mark {
  width: 32px; height: 32px;
  border-radius: var(--r-md);
  background: var(--color-brand-500);
  display: grid; place-items: center;
  font-weight: var(--fw-bold);
  color: #fff;
  font-size: 13px;
  letter-spacing: 0.02em;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.12), 0 2px 4px rgba(193,18,31,0.4);
}
.sidebar-brand-name {
  font-weight: var(--fw-semibold);
  color: #fff;
  line-height: 1.1;
  font-size: var(--fs-14);
}
.sidebar-brand-org {
  font-size: var(--fs-11);
  color: var(--text-on-dark-muted);
  letter-spacing: 0.02em;
  margin-top: 2px;
}

.sidebar-search {
  margin: var(--sp-3) var(--sp-4);
  position: relative;
  flex-shrink: 0;
}
.sidebar-search input {
  width: 100%;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  color: #fff;
  border-radius: var(--r-md);
  padding: 7px 10px 7px 32px;
  font-size: var(--fs-13);
  transition: var(--t-fast);
}
.sidebar-search input::placeholder { color: rgba(255,255,255,0.4); }
.sidebar-search input:focus {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.18);
  box-shadow: none;
  outline: none;
}
.sidebar-search .icon {
  position: absolute; left: 9px; top: 50%;
  transform: translateY(-50%);
  color: rgba(255,255,255,0.5);
}
.sidebar-search kbd {
  position: absolute; right: 8px; top: 50%; transform: translateY(-50%);
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.10);
  color: rgba(255,255,255,0.5);
}

.sidebar-nav {
  flex: 1; overflow-y: auto;
  padding: var(--sp-2) var(--sp-3) var(--sp-4);
}
.sidebar-section {
  padding: var(--sp-3) var(--sp-3) var(--sp-1);
  font-size: var(--fs-11);
  color: rgba(255,255,255,0.4);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: var(--fw-semibold);
}

.sidebar-link {
  display: flex; align-items: center; gap: 10px;
  padding: 7px 10px;
  border-radius: var(--r-md);
  color: rgba(229,231,235,0.85);
  font-size: var(--fs-13);
  font-weight: var(--fw-medium);
  cursor: pointer;
  position: relative;
  transition: background var(--t-fast), color var(--t-fast);
}
.sidebar-link:hover {
  background: rgba(255,255,255,0.05);
  color: #fff;
}
.sidebar-link.active {
  background: rgba(193,18,31,0.16);
  color: #fff;
}
.sidebar-link.active::before {
  content: "";
  position: absolute; left: -7px; top: 6px; bottom: 6px;
  width: 3px; background: var(--color-brand-400);
  border-radius: 0 var(--r-pill) var(--r-pill) 0;
}
.sidebar-link .icon { color: rgba(255,255,255,0.6); }
.sidebar-link:hover .icon, .sidebar-link.active .icon { color: #fff; }
.sidebar-link .badge-count {
  margin-left: auto;
  background: rgba(255,255,255,0.10);
  color: #fff;
  padding: 1px 6px;
  border-radius: var(--r-pill);
  font-size: 11px;
  font-weight: var(--fw-semibold);
  font-variant-numeric: tabular-nums;
}
.sidebar-link.is-danger .badge-count {
  background: var(--color-brand-500);
}

.sidebar-footer {
  padding: var(--sp-3) var(--sp-3);
  border-top: 1px solid rgba(255,255,255,0.06);
  flex-shrink: 0;
}
.sidebar-user {
  display: flex; align-items: center; gap: var(--sp-3);
  padding: 6px;
  border-radius: var(--r-md);
  cursor: pointer;
  transition: background var(--t-fast);
}
.sidebar-user:hover { background: rgba(255,255,255,0.05); }
.sidebar-user-name { color: #fff; font-weight: var(--fw-medium); font-size: var(--fs-13); line-height: 1.1; }
.sidebar-user-role { color: rgba(255,255,255,0.45); font-size: var(--fs-11); margin-top: 2px; }

/* ---------- Topbar ---------- */
.topbar {
  position: sticky; top: 0; z-index: var(--z-sticky);
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  height: var(--topbar-h);
  display: flex; align-items: center;
  padding: 0 var(--sp-6);
  gap: var(--sp-4);
}
.topbar-breadcrumbs {
  display: flex; align-items: center; gap: var(--sp-2);
  font-size: var(--fs-13);
  color: var(--text-soft);
  font-weight: var(--fw-medium);
}
.topbar-breadcrumbs .crumb-sep { color: var(--text-muted); opacity: 0.6; }
.topbar-breadcrumbs .crumb.active { color: var(--text-strong); }

.topbar-actions {
  margin-left: auto;
  display: flex; align-items: center; gap: var(--sp-2);
}
.topbar-mobile-menu {
  display: none;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: var(--bg-card);
  width: 36px; height: 36px;
  align-items: center; justify-content: center;
  cursor: pointer;
}

/* Status pill in topbar */
.topbar-status {
  display: inline-flex; align-items: center; gap: var(--sp-2);
  padding: 4px 10px;
  background: var(--color-success-50);
  color: var(--color-success-700);
  border-radius: var(--r-pill);
  font-size: var(--fs-12);
  font-weight: var(--fw-medium);
  border: 1px solid #BBF7D0;
}
.topbar-status::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--color-success-500);
  box-shadow: 0 0 0 3px rgba(22,163,74,0.18);
}

.iconbtn {
  width: 36px; height: 36px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--border);
  background: var(--bg-card);
  border-radius: var(--r-md);
  color: var(--text-soft);
  cursor: pointer;
  position: relative;
  transition: var(--t-fast);
}
.iconbtn:hover { background: var(--bg-muted); color: var(--text-strong); }
.iconbtn .dot {
  position: absolute; top: 7px; right: 8px;
  width: 7px; height: 7px;
  background: var(--color-brand-500);
  border: 2px solid var(--bg-card);
  border-radius: 50%;
}

/* ---------- Main content area ---------- */
.main {
  min-width: 0;
  display: flex; flex-direction: column;
}
.content {
  padding: var(--sp-6);
  display: flex; flex-direction: column;
  gap: var(--sp-6);
  flex: 1;
}
.content.is-fluid { padding-bottom: var(--sp-9); }

/* ---------- Page header ---------- */
.page-header {
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: var(--sp-6);
  padding-bottom: var(--sp-4);
  border-bottom: 1px solid var(--border);
  margin-bottom: var(--sp-2);
}
.page-header h1 { font-size: var(--fs-24); line-height: 1.15; }
.page-header .page-eyebrow {
  font-size: var(--fs-12);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  font-weight: var(--fw-semibold);
  margin-bottom: 6px;
}
.page-header .page-sub {
  color: var(--text-soft);
  font-size: var(--fs-13);
  margin-top: 6px;
  max-width: 64ch;
}
.page-header .page-actions {
  display: flex; gap: var(--sp-2); flex-shrink: 0;
}

/* ---------- Mobile-Nav (Bottom) ---------- */
.mobile-nav {
  display: none;
  position: fixed; bottom: 0; left: 0; right: 0;
  height: var(--mobile-nav-h);
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  box-shadow: 0 -4px 12px rgba(17, 24, 39, 0.05);
  z-index: var(--z-sticky);
  padding: 6px var(--sp-2) calc(6px + env(safe-area-inset-bottom));
}
.mobile-nav-list {
  display: grid; grid-template-columns: repeat(5, 1fr);
  height: 100%;
}
.mobile-nav-link {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 2px;
  color: var(--text-muted);
  font-size: 10px;
  font-weight: var(--fw-medium);
  cursor: pointer;
  position: relative;
  padding-top: 4px;
}
.mobile-nav-link .icon { width: 20px; height: 20px; }
.mobile-nav-link.active { color: var(--color-brand-500); }
.mobile-nav-link.active::before {
  content: ""; position: absolute; top: 0;
  width: 28px; height: 3px;
  background: var(--color-brand-500);
  border-radius: 0 0 var(--r-pill) var(--r-pill);
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .app { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .topbar-mobile-menu { display: inline-flex; }
  .mobile-nav { display: block; }
  .content { padding: var(--sp-4); padding-bottom: calc(var(--mobile-nav-h) + var(--sp-6)); }
  .topbar { padding: 0 var(--sp-4); }
}

@media (max-width: 640px) {
  .page-header { flex-direction: column; align-items: stretch; gap: var(--sp-3); }
  .topbar-breadcrumbs .crumb:not(.active) { display: none; }
  .topbar-breadcrumbs .crumb-sep { display: none; }
}

/* ---------- Auth Layout ---------- */
.auth-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr;
  background: var(--bg-app);
}
@media (min-width: 900px) {
  .auth-shell { grid-template-columns: 1fr 1fr; }
}
.auth-aside {
  display: none;
  background: var(--bg-sidebar);
  background-image:
    radial-gradient(circle at 80% 0%, rgba(193,18,31,0.35), transparent 50%),
    radial-gradient(circle at 0% 100%, rgba(193,18,31,0.15), transparent 60%),
    linear-gradient(180deg, #1F2937, #0B1220);
  color: #fff;
  position: relative;
  padding: var(--sp-9);
  flex-direction: column; justify-content: space-between;
}
@media (min-width: 900px) { .auth-aside { display: flex; } }
.auth-aside-quote {
  font-size: var(--fs-20);
  line-height: 1.4;
  color: #fff;
  max-width: 32ch;
  font-weight: var(--fw-medium);
}
.auth-aside-quote span { color: var(--color-brand-400); }
.auth-form-wrap {
  display: flex; align-items: center; justify-content: center;
  padding: var(--sp-7) var(--sp-4);
}
.auth-form-card {
  width: 100%; max-width: 380px;
}