/* ============================================================
   Showcase shell — sidebar nav, main canvas, panels
   ============================================================ */

.shell {
  display: grid;
  grid-template-columns: 260px 1fr 320px;
  height: 100vh;
  position: relative;
  z-index: 1;
}

/* ============ SIDEBAR ============ */
.sidebar {
  position: relative;
  z-index: 2;
  padding: 24px 14px 24px 20px;
  overflow-y: auto;
  background: var(--surface-1);
  backdrop-filter: blur(40px) saturate(180%);
  -webkit-backdrop-filter: blur(40px) saturate(180%);
  border-right: 1px solid rgba(255, 255, 255, 0.06);
}
:root[data-theme='light'] .sidebar {
  border-right-color: rgba(0, 0, 0, 0.06);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 8px 18px;
  margin-bottom: 6px;
}
.brand-mark {
  width: 32px;
  height: 32px;
  border-radius: 9px;
  position: relative;
  background: linear-gradient(135deg, #ff6b9d 0%, #a85ef2 50%, #4a7dff 100%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.5),
    0 4px 10px rgba(168, 94, 242, 0.4);
}
.brand-mark::after {
  content: '';
  position: absolute;
  inset: 4px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(4px);
  border: 1px solid rgba(255, 255, 255, 0.35);
}
.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}
.brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: -0.02em;
}
.brand-sub {
  font-size: 11px;
  color: var(--text-3);
}

.side-search {
  margin: 0 4px 14px;
  position: relative;
}
.side-search input {
  width: 100%;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg-soft);
  border-radius: 9px;
  padding: 7px 10px 7px 30px;
  font-size: 13px;
  outline: none;
  color: var(--text-1);
}
.side-search input::placeholder {
  color: var(--text-3);
}
.side-search input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.side-search .icon {
  position: absolute;
  left: 9px;
  top: 50%;
  transform: translateY(-50%);
  width: 13px;
  height: 13px;
  color: var(--text-3);
}

.nav-group {
  margin-top: 14px;
}
.nav-group-label {
  font-size: 10.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-3);
  padding: 4px 10px;
  margin-bottom: 2px;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 6px 10px;
  border-radius: 7px;
  font-size: 13.5px;
  color: var(--text-2);
  cursor: pointer;
  transition:
    background-color 0.12s,
    color 0.12s;
  position: relative;
}
.nav-item:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-1);
}
:root[data-theme='light'] .nav-item:hover {
  background: rgba(0, 0, 0, 0.04);
}
.nav-item.active {
  background: var(--accent);
  color: white;
  box-shadow: 0 2px 6px var(--accent-soft);
}
.nav-item.active:hover {
  background: var(--accent);
}
.nav-item .icon {
  width: 14px;
  height: 14px;
  opacity: 0.85;
}
.nav-badge {
  margin-left: auto;
  font-size: 10px;
  padding: 1px 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-3);
}
.nav-item.active .nav-badge {
  background: rgba(255, 255, 255, 0.2);
  color: white;
}

/* ============ MAIN CANVAS ============ */
.main {
  position: relative;
  overflow-y: auto;
  overflow-x: hidden;
}

.main-inner {
  max-width: 760px;
  margin: 0 auto;
  padding: 40px 48px 80px;
}

.page-header {
  margin-bottom: 28px;
}
.page-eyebrow {
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 6px;
}
.page-title {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.025em;
  margin-bottom: 8px;
}
.page-desc {
  font-size: 15px;
  color: var(--text-2);
  line-height: 1.5;
  max-width: 60ch;
}

.section {
  margin-top: 36px;
}
.section-label {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 14px;
}
.section-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-1);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.section-meta {
  font-size: 12px;
  color: var(--text-3);
}

/* Demo surface — where live components render */
.demo {
  border-radius: 16px;
  padding: 32px 28px;
  background: var(--surface-1);
  backdrop-filter: blur(40px) saturate(170%);
  -webkit-backdrop-filter: blur(40px) saturate(170%);
  border: 1px solid rgba(255, 255, 255, 0.07);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.04),
    0 4px 20px rgba(0, 0, 0, 0.15);
  min-height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  position: relative;
}
:root[data-theme='light'] .demo {
  border-color: rgba(0, 0, 0, 0.06);
}
.demo.tall {
  min-height: 200px;
  align-items: center;
}
.demo.list {
  padding: 0;
  flex-direction: column;
  align-items: stretch;
}
.demo.start {
  justify-content: flex-start;
}
.demo.column {
  flex-direction: column;
  align-items: stretch;
}
.demo.is-updating {
  animation: demo-prop-pulse 420ms var(--ease-out);
}

@keyframes demo-prop-pulse {
  0% {
    border-color: color-mix(in oklab, var(--accent) 70%, white 20%);
    box-shadow:
      inset 0 1px 0 rgba(255, 255, 255, 0.12),
      0 0 0 0 var(--accent-soft),
      0 4px 20px rgba(0, 0, 0, 0.15);
  }
  70% {
    border-color: var(--accent);
    box-shadow:
      inset 0 1px 0 rgba(255, 255, 255, 0.12),
      0 0 0 8px transparent,
      0 4px 20px rgba(0, 0, 0, 0.15);
  }
  100% {
    border-color: rgba(255, 255, 255, 0.07);
    box-shadow:
      inset 0 1px 0 rgba(255, 255, 255, 0.04),
      0 4px 20px rgba(0, 0, 0, 0.15);
  }
}

.demo-row {
  display: flex;
  gap: 14px;
  align-items: center;
  flex-wrap: wrap;
  justify-content: center;
  width: 100%;
}

/* Variant grid */
.variant-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
}
.variant-cell {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 18px 12px;
  background: var(--surface-1);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 12px;
  min-height: 90px;
}
:root[data-theme='light'] .variant-cell {
  border-color: rgba(0, 0, 0, 0.06);
}
.variant-cell-label {
  font-size: 11px;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* Code panel inline */
.code-panel {
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.42);
  border: 1px solid rgba(255, 255, 255, 0.06);
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 12.5px;
  position: relative;
}
:root[data-theme='light'] .code-panel {
  background: #1d1f24;
  border-color: rgba(0, 0, 0, 0.08);
  color: #e9ecef;
}
.code-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 11px;
  color: var(--text-3);
}
:root[data-theme='light'] .code-head {
  color: rgba(255, 255, 255, 0.6);
  border-bottom-color: rgba(255, 255, 255, 0.08);
}
.code-tab {
  padding: 3px 8px;
  border-radius: 5px;
  cursor: pointer;
}
.code-tab.active {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-1);
}
:root[data-theme='light'] .code-tab.active {
  background: rgba(255, 255, 255, 0.12);
  color: white;
}
.code-tabs {
  display: flex;
  gap: 4px;
}
.code-actions {
  display: flex;
  gap: 6px;
}
.code-copy {
  font-size: 11px;
  color: var(--text-3);
  padding: 3px 8px;
  border-radius: 5px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  cursor: pointer;
  transition: all 0.12s;
}
.code-copy:hover {
  color: var(--text-1);
  background: rgba(255, 255, 255, 0.05);
}
.code-body {
  padding: 12px 14px;
  overflow: auto;
  max-height: 360px;
  color: #e9ecef;
}
.code-body pre {
  margin: 0;
  white-space: pre;
  line-height: 1.55;
}

/* Syntax highlighting (basic) */
.tk-key {
  color: #ff7ab2;
}
.tk-tag {
  color: #82aaff;
}
.tk-attr {
  color: #c3e88d;
}
.tk-str {
  color: #f78c6c;
}
.tk-com {
  color: #5c6370;
  font-style: italic;
}
.tk-pun {
  color: #abb2bf;
}
.tk-fn {
  color: #c3e88d;
}

/* ============ RIGHT PANEL — Props playground ============ */
.props {
  position: relative;
  z-index: 2;
  overflow-y: auto;
  background: var(--surface-1);
  backdrop-filter: blur(40px) saturate(180%);
  -webkit-backdrop-filter: blur(40px) saturate(180%);
  border-left: 1px solid rgba(255, 255, 255, 0.06);
  padding: 24px 20px;
}
:root[data-theme='light'] .props {
  border-left-color: rgba(0, 0, 0, 0.06);
}
.props h4 {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 14px;
}
.knob {
  margin-bottom: 14px;
}
.knob-label {
  font-size: 12px;
  color: var(--text-2);
  margin-bottom: 6px;
  display: flex;
  justify-content: space-between;
}
.knob-label code {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-3);
}
.knob-value {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
}
.knob select,
.knob input[type='text'],
.knob input[type='number'] {
  width: 100%;
  padding: 7px 10px;
  border-radius: 8px;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg-soft);
  font-size: 13px;
  outline: none;
}
.knob select:focus,
.knob input:focus {
  border-color: var(--accent);
}
.knob-seg {
  display: flex;
  gap: 2px;
  padding: 2px;
  background: var(--glass-bg-soft);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
}
.knob-seg button {
  flex: 1;
  padding: 5px 8px;
  font-size: 12px;
  border-radius: 6px;
  color: var(--text-2);
  font-weight: 500;
}
.knob-seg button.active {
  background: var(--glass-bg-strong);
  color: var(--text-1);
  box-shadow: inset 0 1px 0 var(--glass-highlight);
}
.knob-bool {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ============ TOP BAR ============ */
.topbar {
  position: absolute;
  top: 18px;
  right: 24px;
  z-index: 30;
  display: flex;
  gap: 8px;
}

/* ============ Responsive — collapse to single column ============ */
@media (max-width: 1100px) {
  .shell {
    grid-template-columns: 240px 1fr;
  }
  .props {
    display: none;
  }
}
@media (max-width: 760px) {
  .shell {
    grid-template-columns: 1fr;
  }
  .sidebar {
    display: none;
  }
  .main-inner {
    padding: 24px 16px 60px;
  }
}