/* ---------- App shell ---------- */
.app-shell {
  display: flex;
  min-height: 100vh;
  min-height: 100dvh;
}

/* Sidebar — desktop/tablet only, mobile uses bottom-nav (see below) */
.sidebar {
  display: none;
  flex-direction: column;
  width: var(--sidebar-width-collapsed);
  background: var(--color-surface);
  border-right: 2px solid var(--color-border);
  padding: var(--space-4) var(--space-2);
  position: sticky;
  top: 0;
  height: 100vh;
  height: 100dvh;
  flex-shrink: 0;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2);
  margin-bottom: var(--space-5);
}
.sidebar-brand span { display: none; font-family: var(--font-heading); font-weight: 800; color: var(--color-primary-900); }

.sidebar-item span.label { display: none; }

.sidebar-footer { margin-top: auto; }

@media (min-width: 768px) {
  .sidebar { display: flex; }
  .main-area { margin-left: 0; }
}

@media (min-width: 1024px) {
  .sidebar { width: var(--sidebar-width); }
  .sidebar-brand span { display: inline; }
  .sidebar-item span.label { display: inline; }
}

/* Main content area */
.main-area {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.topbar {
  height: var(--topbar-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-5);
  background: var(--color-surface);
  border-bottom: 2px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.topbar-brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-heading);
  font-weight: 800;
  color: var(--color-primary-900);
}

@media (min-width: 768px) {
  .topbar-brand { display: none; }
}

.view-root:focus { outline: none; }

.view-root {
  flex: 1;
  padding: var(--space-5);
  padding-bottom: calc(var(--bottom-nav-height) + var(--space-5));
  max-width: 1100px;
  width: 100%;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .view-root { padding: var(--space-6); padding-bottom: var(--space-6); }
}

/* Bottom nav — mobile only */
.bottom-nav {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  height: var(--bottom-nav-height);
  background: var(--color-surface);
  border-top: 2px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-around;
  z-index: 20;
}

.bottom-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  color: var(--color-text-muted);
  font-size: 0.7rem;
  font-weight: 700;
  padding: var(--space-1);
  min-width: 56px;
  min-height: 48px;
}
.bottom-nav-item.active { color: var(--color-primary-600); }
.bottom-nav-item .icon { width: 22px; height: 22px; }
.bottom-nav-item:hover { text-decoration: none; }

@media (min-width: 768px) {
  .bottom-nav { display: none; }
}

/* Generic responsive containers */
.stack { display: flex; flex-direction: column; gap: var(--space-4); }
.row { display: flex; align-items: center; gap: var(--space-3); flex-wrap: wrap; }
.row-between { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); flex-wrap: wrap; }

/* Two-column layout (list + detail panel), stacks on mobile */
.split-view {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}
/* alvo do scrollIntoView no mobile: compensa o topbar sticky */
.split-view > div:last-child {
  scroll-margin-top: calc(var(--topbar-height) + var(--space-3));
}
@media (min-width: 900px) {
  .split-view.has-detail { grid-template-columns: 340px 1fr; align-items: start; }
}

/* Auth screen */
.auth-screen {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(160deg, var(--color-primary-600), var(--color-primary-900));
  padding: var(--space-4);
}

.auth-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-6);
  width: 100%;
  max-width: 400px;
}