/* App shell: sidebar + header + content */

.app-shell {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  min-height: 100vh;
  transition: grid-template-columns 0.18s ease;
}

.app-shell.is-collapsed {
  grid-template-columns: var(--sidebar-w-collapsed) 1fr;
}

.app-main {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

/* ---------- Sidebar ---------- */

.sidebar {
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: var(--space-5) var(--space-4);
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: hidden;
  z-index: 40;
}

/* Ambient car-audio artwork, flushed to the bottom-left corner */
.sidebar-decor {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: auto;
  object-fit: contain;
  object-position: left bottom;
  opacity: 0.14;
  pointer-events: none;
  user-select: none;
  z-index: 0;
}

:root[data-theme="light"] .sidebar-decor { opacity: 0.11; }

/* Keep nav content crisp above the artwork */
.sidebar-brand,
.sidebar nav,
.sidebar-footer { position: relative; z-index: 1; }

.is-collapsed .sidebar-decor { opacity: 0; }

.sidebar-brand {
  display: flex;
  align-items: center;
  padding: 2px var(--space-2) var(--space-6);
  overflow: hidden;
}

.sidebar-logo {
  width: 162px;
  max-width: 100%;
  height: auto;
  object-fit: contain;
  display: block;
}

/* White logo artwork sits directly on the dark sidebar; convert to dark for light mode. */
:root[data-theme="light"] .sidebar-logo {
  filter: brightness(0);
  opacity: 0.88;
}

.is-collapsed .sidebar-brand { justify-content: center; padding-left: 0; padding-right: 0; }
.is-collapsed .sidebar-logo { width: 48px; }

.is-collapsed .nav-label,
.is-collapsed .nav-section-label,
.is-collapsed .sidebar-collapse span {
  display: none;
}

.nav-section-label {
  font-family: var(--font-heading);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-soft-text);
  margin: var(--space-5) var(--space-2) var(--space-2);
}

.nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 9px var(--space-3);
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 13.5px;
  color: var(--text-secondary);
  border-left: 3px solid transparent;
  white-space: nowrap;
}

.nav-link svg { flex-shrink: 0; width: 18px; height: 18px; }

.nav-link:hover { background: var(--bg-hover); color: var(--text-primary); }

.nav-link.is-active {
  background: var(--accent-soft-bg);
  color: var(--accent-soft-text);
  border-left-color: var(--accent);
}

.sidebar-footer {
  margin-top: auto;
  padding-top: var(--space-4);
  border-top: 1px solid var(--border);
}

.sidebar-collapse {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  width: 100%;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 600;
  padding: var(--space-2);
  border-radius: var(--radius-md);
}

.sidebar-collapse:hover { background: var(--bg-hover); color: var(--text-primary); }

.is-collapsed .sidebar-collapse svg { transform: rotate(180deg); }

/* ---------- Header ---------- */

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  height: var(--header-h);
  background: var(--bg-header);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: 0 28px;
}

@media (min-width: 1600px) {
  .topbar { padding: 0 40px; }
}

.topbar-search {
  flex: 1;
  max-width: 520px;
  position: relative;
}

@media (max-width: 1280px) {
  .topbar-search { max-width: 440px; }
}

.topbar-search input {
  width: 100%;
  padding: 10px 14px 10px 40px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--bg-card-alt);
  font-size: 13.5px;
}

.topbar-search svg {
  position: absolute;
  left: 13px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  width: 17px;
  height: 17px;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-left: auto;
}

.icon-btn {
  position: relative;
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-secondary);
}

.icon-btn:hover { background: var(--bg-hover); color: var(--text-primary); }

.icon-btn .badge {
  position: absolute;
  top: -5px;
  right: -5px;
  min-width: 17px;
  height: 17px;
  padding: 0 4px;
  border-radius: var(--radius-pill);
  background: var(--tone-red);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--bg-header);
}

.mobile-nav-toggle { display: none; }

.sidebar-scrim { display: none; }

/* ---------- Content ---------- */

.content {
  width: 100%;
  max-width: none;
  box-sizing: border-box;
  padding: 24px 28px 32px;
}

@media (min-width: 1600px) {
  .content { padding: 26px 40px 36px; }
}

.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
  flex-wrap: wrap;
}

.page-header h1 {
  font-size: 22px;
  font-weight: 800;
}

.page-header p {
  margin: 4px 0 0;
  color: var(--text-secondary);
  font-size: 13.5px;
}

.page-header-actions { display: flex; gap: var(--space-3); }

/* ---------- Mobile ---------- */

@media (max-width: 980px) {
  .app-shell { grid-template-columns: 1fr; }

  .sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: 264px;
    transform: translateX(-100%);
    transition: transform 0.2s ease;
    box-shadow: var(--shadow-dropdown);
  }

  .app-shell.is-mobile-nav-open .sidebar { transform: translateX(0); }

  .sidebar-scrim {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 39;
  }

  .app-shell.is-mobile-nav-open .sidebar-scrim { display: block; }

  .mobile-nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    background: var(--bg-card);
    color: var(--text-primary);
  }

  .topbar-search { display: none; }

  .content { padding: var(--space-4); }
}

@media (max-width: 640px) {
  .topbar { padding: 0 var(--space-4); gap: var(--space-2); }
  .header-owner-name { display: none; }
}