html,
body {
  min-height: 100%;
}

.site-shell {
  display: flex;
  min-height: 100vh;
  width: 100%;
}

.site-sidebar {
  width: var(--sidebar-width);
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.035), transparent 34%),
    #030303;
  border-right: 1px solid var(--panel-line);
  position: sticky;
  top: 0;
  height: 100vh;
  z-index: 10;
  transition: transform 240ms ease, opacity 240ms ease, width 240ms ease;
}

body.sidebar-collapsed .site-sidebar {
  width: 0;
  min-width: 0;
  transform: translateX(-100%);
  opacity: 0;
  border-right-width: 0;
  overflow: hidden;
}

.sidebar-head,
.sidebar-foot {
  padding: 24px;
}

.sidebar-head {
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

.sidebar-mobile-head {
  display: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.rail-brand-meta,
.sidebar-subtext {
  font-size: 0.8rem;
  color: var(--text-dim);
}

.sidebar-toggle-btn,
.sidebar-show-btn {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  color: var(--text-soft);
  border: 1px solid var(--panel-line);
  background: #090909;
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.sidebar-toggle-btn:hover,
.sidebar-show-btn:hover {
  transform: translateY(-1px);
  border-color: var(--panel-line-strong);
  background: #111111;
}

.sidebar-nav {
  flex: 1;
  padding: 20px 8px 18px;
  display: grid;
  align-content: start;
  gap: 20px;
  overflow-y: auto;
}

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

.nav-label {
  padding: 0 6px;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-dim);
  font-weight: 700;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 48px;
  padding: 12px 10px;
  border-radius: 14px;
  color: var(--text-soft);
  font-size: 0.94rem;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  text-align: left;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease, color 180ms ease;
}

.nav-link i {
  width: 18px;
  color: var(--text-soft);
}

.nav-link:hover,
.nav-link-active {
  color: var(--text-main);
  border-color: var(--panel-line);
  background: #0d0d0d;
}

.nav-group-meta {
  margin-top: 4px;
}

.sidebar-note-card {
  display: grid;
  gap: 10px;
  padding: 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 18px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.018)),
    rgba(255, 255, 255, 0.02);
}

.sidebar-note-kicker {
  color: var(--text-dim);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.sidebar-note-card strong {
  font-size: 0.97rem;
  letter-spacing: -0.03em;
}

.sidebar-note-card p {
  color: var(--text-soft);
  line-height: 1.6;
  font-size: 0.88rem;
}

.sidebar-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.sidebar-chip {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-soft);
  font-size: 0.78rem;
  letter-spacing: 0.02em;
}

.sidebar-foot {
  border-top: 1px solid var(--panel-line);
}

.sidebar-foot-copy {
  display: grid;
  gap: 6px;
}

.sidebar-version {
  font-size: 0.78rem;
  color: var(--text-soft);
  font-family: var(--mono);
}

.workspace {
  flex: 1;
  min-width: 0;
  overflow: visible;
  position: relative;
}

.workspace-header {
  height: 78px;
  padding: 0 32px;
  display: flex;
  align-items: center;
  gap: 16px;
  border-bottom: 1px solid var(--panel-line);
  background: rgba(0, 0, 0, 0.88);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 8;
}

.header-copy {
  display: grid;
  gap: 3px;
  min-width: 0;
}

.view-title-label {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.header-subtitle {
  font-size: 0.82rem;
  color: var(--text-dim);
  line-height: 1.5;
}

.view-stack {
  max-width: var(--page-width);
  margin: 0 auto;
  padding: 32px 32px 72px;
  position: relative;
  z-index: 1;
}

.view-panel {
  display: none;
}

.view-panel.active {
  display: grid;
  gap: 48px;
  animation: panel-in 260ms ease;
}

@keyframes panel-in {
  from {
    opacity: 0;
    transform: translateY(12px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-grid,
.save-layout,
.info-grid,
.api-columns {
  display: grid;
  gap: 24px;
}

.hero-grid {
  grid-template-columns: minmax(0, 1.55fr) minmax(300px, 0.7fr);
  align-items: stretch;
}

.save-layout {
  grid-template-columns: minmax(0, 1.2fr) minmax(340px, 0.8fr);
  align-items: start;
}

.info-grid,
.api-columns {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}