.app-shell {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  min-height: 100vh;
}

.sidebar {
  background: #131313;
  border-right: 1px solid var(--border);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.brand-block {
  display: flex;
  gap: 12px;
  align-items: center;
}

.brand-mark {
  width: 64px;
  height: 64px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(180deg, #201a0a, #14110a);
  border: 1px solid var(--border-strong);
  overflow: hidden;
  padding: 4px;
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 10px;
}

.brand-title {
  font-weight: 700;
  font-size: 18px;
}

.brand-subtitle {
  color: var(--text-dim);
  font-size: 12px;
}

.sidebar-nav {
  display: grid;
  gap: 8px;
}

.nav-link {
  padding: 12px 14px;
  border-radius: var(--radius-small);
  border: 1px solid transparent;
  color: var(--text-soft);
  font-weight: 600;
}

.nav-link.active {
  border-color: var(--border-strong);
  background: #1d1910;
  color: var(--text);
}

.sidebar-panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  display: grid;
  gap: 12px;
  min-height: 0;
  overflow: hidden;
}

.panel-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 700;
}

.sidebar-note {
  color: var(--text-dim);
  font-size: 12px;
}

.event-list {
  display: grid;
  gap: 8px;
  overflow: auto;
}

.sidebar-actions {
  display: grid;
  gap: 8px;
}

.shell-main {
  display: grid;
  grid-template-rows: auto 1fr auto;
  min-width: 0;
}

.topbar {
  padding: 18px 22px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  background: #121212;
  position: sticky;
  top: 0;
  z-index: 10;
}

.topbar h1 {
  font-size: 24px;
  font-weight: 800;
}

.topbar-subtitle {
  color: var(--text-dim);
  font-size: 13px;
  margin-top: 4px;
}

.topbar-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.workspace {
  padding: 20px 22px;
}

.page {
  min-width: 0;
}

.statusbar {
  padding: 10px 22px;
  border-top: 1px solid var(--border);
  color: var(--text-dim);
  background: #121212;
  font-size: 12px;
}

@media (max-width: 1100px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }
}