/* ==========================================================================
   MAGIC LEDGER DESIGN SYSTEM - LAYOUT & RESPONSIVE GRID (layout.css)
   Sidebar Architecture & High-Performance Grid Mechanics
   ========================================================================== */

/* ── Sticky Header Bar ── */
header {
  padding: 14px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--ds-border-color);
  background: rgba(11, 15, 25, 0.85);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(20px) saturate(180%);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.header-divider {
  width: 1px;
  height: 20px;
  background: var(--ds-border-color);
}

.header-meta {
  font-size: 12px;
  color: var(--ds-color-text-muted);
  display: flex;
  align-items: center;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--ds-radius-md);
  background: linear-gradient(135deg, var(--ds-color-accent), var(--ds-color-accent-hover));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  box-shadow: 0 0 16px rgba(99, 102, 241, 0.4);
}

.logo-text {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ds-color-text-primary);
}

.logo-badge {
  font-size: 10px;
  font-weight: 600;
  padding: 2px 7px;
  background: var(--ds-color-accent-subtle);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: var(--ds-radius-pill);
  color: var(--ds-color-accent-hover);
  letter-spacing: 0.05em;
}

/* ── App Layout & Sidebar Navigation ── */
main.app-layout {
  max-width: 1360px;
  margin: 0 auto;
  padding: var(--ds-space-lg) var(--ds-space-lg) var(--ds-space-2xl);
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: var(--ds-space-lg);
}

main.hidden {
  display: none !important;
}

.app-sidebar {
  background: var(--ds-color-bg-sidebar);
  border: 1px solid var(--ds-border-color);
  border-radius: var(--ds-radius-xl);
  padding: 20px 14px;
  height: fit-content;
  position: sticky;
  top: 80px;
  backdrop-filter: blur(16px);
  box-shadow: var(--ds-shadow-card);
}

.sidebar-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--ds-color-text-dim);
  margin-bottom: var(--ds-space-md);
  padding-left: 8px;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--ds-radius-md);
  color: var(--ds-color-text-muted);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  transition: all var(--ds-transition-fast);
  border: 1px solid transparent;
}

.sidebar-link:hover, .sidebar-link.active {
  color: var(--ds-color-text-primary);
  background: var(--ds-color-accent-subtle);
  border-color: var(--ds-border-color-accent);
}

.sidebar-icon {
  font-size: 15px;
}

.sidebar-footer {
  margin-top: var(--ds-space-lg);
  padding-top: var(--ds-space-md);
  border-top: 1px solid var(--ds-border-color);
}

/* ── Main Canvas ── */
.app-canvas {
  display: flex;
  flex-direction: column;
  gap: var(--ds-space-lg);
  min-width: 0;
}

.app-canvas > [id] {
  scroll-margin-top: 88px;
}

/* Responsive Media Queries */
@media (max-width: 960px) {
  main.app-layout {
    grid-template-columns: 1fr;
    gap: var(--ds-space-md);
  }
  .app-sidebar {
    position: static;
  }
  .sidebar-nav {
    flex-direction: row;
    flex-wrap: wrap;
  }
}

@media (max-width: 700px) {
  header {
    align-items: flex-start;
    gap: var(--ds-space-sm);
    padding: 12px 16px;
  }
  .header-divider, .mandant-badge, .berater-badge {
    display: none;
  }
  .header-meta {
    align-items: flex-end;
    flex-direction: column;
    gap: var(--ds-space-sm);
  }
  main.app-layout {
    padding: var(--ds-space-md);
  }
  .sidebar-link {
    flex: 1 1 140px;
  }
}