/* ---------- App-Rahmen: Sidebar (Desktop) / Tabbar (Mobil) ---------- */
.app-shell {
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr);
  min-height: 100dvh;
}

/* ---------- Seitenleiste ---------- */
.sidebar {
  position: sticky; top: 0; height: 100dvh;
  display: flex; flex-direction: column;
  background: var(--bg-elevated);
  border-right: 1px solid var(--line);
  padding: calc(var(--safe-top) + var(--sp-4)) var(--sp-3) var(--sp-3);
  gap: var(--sp-4);
  z-index: 30;
}
.brand { display: flex; align-items: center; gap: 10px; padding: 0 var(--sp-2); min-height: 34px; }
.brand-mark {
  width: 28px; height: 28px; border-radius: 8px; flex: 0 0 auto;
  background: var(--accent); color: var(--accent-ink);
  display: grid; place-items: center; font-weight: 700; font-size: .8rem;
}
.brand-name { font-weight: 650; letter-spacing: -.01em; font-size: .97rem; }
.brand-sub { font-size: .72rem; color: var(--text-faint); margin-top: -2px; }

.year-switch {
  display: flex; align-items: center; gap: var(--sp-2); width: 100%;
  padding: 8px 10px; border-radius: var(--radius);
  background: var(--surface-2); border: 1px solid var(--line);
  color: var(--text); text-align: left; transition: background var(--dur) var(--ease);
}
.year-switch:hover { background: var(--surface-3); }
.year-switch .ys-label { font-size: .69rem; color: var(--text-faint); text-transform: uppercase; letter-spacing: .05em; }
.year-switch .ys-value { font-size: .87rem; font-weight: 600; }
.year-switch svg { flex: 0 0 auto; color: var(--text-faint); }

.nav { display: flex; flex-direction: column; gap: 2px; overflow-y: auto; flex: 1 1 auto; }
.nav-group-title {
  font-size: .69rem; text-transform: uppercase; letter-spacing: .06em;
  color: var(--text-faint); padding: var(--sp-4) var(--sp-3) var(--sp-2); font-weight: 600;
}
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 10px; border-radius: var(--radius);
  color: var(--text-muted); font-size: .89rem; font-weight: 500;
  background: transparent; border: 0; width: 100%; text-align: left;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.nav-item:hover { background: var(--surface-2); color: var(--text); text-decoration: none; }
.nav-item.active { background: var(--accent-weak); color: var(--accent); font-weight: 600; }
.nav-item svg { flex: 0 0 auto; opacity: .9; }
.nav-item .badge-count {
  margin-left: auto; font-size: .7rem; background: var(--surface-3);
  color: var(--text-muted); padding: 1px 7px; border-radius: 999px; font-weight: 600;
}

.sidebar-foot { border-top: 1px solid var(--line); padding-top: var(--sp-3); display: flex; flex-direction: column; gap: 2px; }
.account-btn {
  display: flex; align-items: center; gap: 10px; width: 100%;
  padding: 8px 10px; border-radius: var(--radius); border: 0;
  background: transparent; text-align: left; transition: background var(--dur) var(--ease);
}
.account-btn:hover { background: var(--surface-2); }
.avatar {
  width: 28px; height: 28px; border-radius: 50%; flex: 0 0 auto;
  background: var(--surface-3); color: var(--text-muted);
  display: grid; place-items: center; font-size: .74rem; font-weight: 650;
}
.account-name { font-size: .85rem; font-weight: 550; }
.account-state { font-size: .71rem; color: var(--text-faint); }

/* ---------- Hauptbereich ---------- */
.main-col { display: flex; flex-direction: column; min-width: 0; min-height: 100dvh; }

.topbar {
  position: sticky; top: 0; z-index: 25;
  display: flex; align-items: center; gap: var(--sp-3);
  min-height: var(--header-h);
  padding: var(--safe-top) var(--sp-5) 0;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(180%) blur(10px);
  -webkit-backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.topbar-title { font-size: 1.02rem; font-weight: 650; letter-spacing: -.01em; }
.topbar-sub { font-size: .76rem; color: var(--text-faint); margin-top: -1px; }
.topbar-actions { margin-left: auto; display: flex; align-items: center; gap: var(--sp-2); }

.view {
  flex: 1 1 auto;
  padding: var(--sp-5);
  padding-bottom: calc(var(--sp-7) + var(--safe-bottom));
  max-width: 1180px; width: 100%; margin: 0 auto;
  animation: viewIn 180ms var(--ease);
}
@keyframes viewIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }
.view.wide { max-width: 1500px; }

.section { margin-bottom: var(--sp-6); }
.section-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--sp-3); margin-bottom: var(--sp-3); flex-wrap: wrap;
}
.section-title { font-size: .95rem; font-weight: 650; }
.section-desc { font-size: .8rem; color: var(--text-muted); margin-top: 1px; }

.grid { display: grid; gap: var(--sp-4); }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-auto { grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); }
.grid-sidebar { grid-template-columns: minmax(0, 1.6fr) minmax(280px, 1fr); align-items: start; }

/* ---------- Mobile Navigation ---------- */
.tabbar { display: none; }
.mobile-only { display: none; }

@media (max-width: 1024px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .mobile-only { display: initial; }
  .view { padding: var(--sp-4); padding-bottom: calc(var(--tabbar-h) + var(--safe-bottom) + var(--sp-6)); }
  .topbar { padding-left: var(--sp-4); padding-right: var(--sp-4); }
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-sidebar { grid-template-columns: minmax(0, 1fr); }

  .tabbar {
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 40;
    display: grid; grid-auto-flow: column; grid-auto-columns: 1fr;
    background: color-mix(in srgb, var(--bg-elevated) 92%, transparent);
    backdrop-filter: saturate(180%) blur(14px);
    -webkit-backdrop-filter: saturate(180%) blur(14px);
    border-top: 1px solid var(--line);
    padding-bottom: var(--safe-bottom);
  }
  .tab {
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    gap: 3px; min-height: var(--tabbar-h); border: 0; background: transparent;
    color: var(--text-faint); font-size: .68rem; font-weight: 550;
    transition: color var(--dur) var(--ease); position: relative;
  }
  .tab.active { color: var(--accent); }
  .tab.active::before {
    content: ''; position: absolute; top: 0; left: 50%; transform: translateX(-50%);
    width: 26px; height: 2px; background: var(--accent); border-radius: 0 0 2px 2px;
  }
  .tab:active { background: var(--surface-2); }
}

@media (max-width: 560px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: minmax(0, 1fr); }
  .grid-auto { grid-template-columns: minmax(0, 1fr); }
  .view { padding: var(--sp-3); padding-bottom: calc(var(--tabbar-h) + var(--safe-bottom) + var(--sp-6)); }
}

/* Grosse Schrift: fruehzeitig auf einspaltig umbrechen. */
@media (max-width: 900px) {
  :root[data-font="xlarge"] .grid-2,
  :root[data-font="xlarge"] .grid-3 { grid-template-columns: minmax(0, 1fr); }
}