:root {
  color-scheme: light dark;

  --font-heading: "Space Grotesk", "Segoe UI", sans-serif;
  --font-body: "Manrope", "Segoe UI", sans-serif;

  --md-primary: #9c27b0;
  --md-on-primary: #ffffff;
  --md-primary-container: #f3e5f5;
  --md-on-primary-container: #4a0072;

  --md-secondary: #625b71;
  --md-surface: #f7f9fc;
  --md-surface-variant: #dde4eb;
  --md-on-surface: #161c22;
  --md-on-surface-variant: #404851;
  --md-outline: #707981;

  --md-shadow: 0 16px 40px -24px rgba(0, 24, 40, 0.45);
  --md-radius-xl: 28px;
  --md-radius-lg: 20px;
  --md-radius-md: 14px;
}

html[data-theme="dark"] {
  --md-primary: #e1bee7;
  --md-on-primary: #3e0051;
  --md-primary-container: #6a0080;
  --md-on-primary-container: #f3e5f5;

  --md-secondary: #c8b6db;
  --md-surface: #0f151b;
  --md-surface-variant: #26313a;
  --md-on-surface: #e9f1f8;
  --md-on-surface-variant: #c0c8d0;
  --md-outline: #88939d;

  --md-shadow: 0 16px 40px -24px rgba(0, 0, 0, 0.75);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--md-on-surface);
  background: radial-gradient(circle at 10% 0%, color-mix(in oklab, var(--md-primary) 16%, transparent), transparent 35%),
    radial-gradient(circle at 90% 20%, color-mix(in oklab, var(--md-secondary) 14%, transparent), transparent 35%),
    var(--md-surface);
}

h1,
h2,
h3 {
  font-family: var(--font-heading);
  letter-spacing: -0.02em;
  margin: 0 0 0.5rem;
}

p {
  margin: 0;
  line-height: 1.6;
}

a {
  color: var(--md-primary);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.9rem 1rem;
  backdrop-filter: blur(12px);
  background: color-mix(in oklab, var(--md-surface) 85%, transparent);
  border-bottom: 1px solid color-mix(in oklab, var(--md-outline) 30%, transparent);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  color: var(--md-on-surface);
  max-width: 180px;
  overflow: hidden;
}

.brand-logo {
  height: 26px;
  max-height: 26px;
  width: auto;
  max-width: 120px;
  display: block;
  object-fit: contain;
}

.plus-logo {
  max-width: 100px;
}

.psych-logo {
  height: 22px;
  max-height: 22px;
  max-width: 105px;
}

.top-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.text-link {
  text-decoration: none;
  color: var(--md-on-surface-variant);
  padding: 0.5rem 0.75rem;
  border-radius: 999px;
}

.text-link:hover {
  background: color-mix(in oklab, var(--md-primary) 10%, transparent);
}

.icon-btn,
.btn {
  border: 0;
  border-radius: 999px;
  font: inherit;
  cursor: pointer;
}

.icon-btn {
  background: var(--md-surface-variant);
  color: var(--md-on-surface);
  padding: 0.6rem 0.9rem;
}

.welcome-body {
  overflow-x: hidden;
}

.ambient {
  position: fixed;
  pointer-events: none;
  border-radius: 999px;
  filter: blur(42px);
  opacity: 0.35;
  z-index: -1;
}

.ambient-a {
  width: 300px;
  height: 300px;
  left: -80px;
  top: 12vh;
  background: color-mix(in oklab, var(--md-primary) 45%, transparent);
}

.ambient-b {
  width: 260px;
  height: 260px;
  right: -90px;
  bottom: 10vh;
  background: color-mix(in oklab, #ff8c5a 40%, transparent);
}

.welcome-main,
.page-main {
  max-width: 960px;
  margin: 0 auto;
  padding: 2.2rem 1rem 1rem;
}

.hero {
  text-align: center;
  padding: clamp(1.6rem, 3vw, 2.4rem);
}

.eyebrow {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.11em;
  color: var(--md-secondary);
  margin-bottom: 0.5rem;
  font-weight: 700;
}

.hero h1 {
  font-size: clamp(1.7rem, 5vw, 2.8rem);
}

.hero p {
  max-width: 62ch;
  margin: 0.5rem auto 0;
}

.card {
  border-radius: var(--md-radius-xl);
  background: color-mix(in oklab, var(--md-surface) 75%, var(--md-primary-container) 25%);
  border: 1px solid color-mix(in oklab, var(--md-outline) 40%, transparent);
  box-shadow: var(--md-shadow);
}

.cta-row {
  margin-top: 1.3rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.8rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.65rem 1.15rem;
  text-decoration: none;
  font-weight: 700;
}

.btn-filled {
  background: var(--md-primary);
  color: var(--md-on-primary);
}

.btn-filled:hover {
  filter: brightness(1.07);
}

.btn-outlined {
  color: var(--md-on-surface);
  border: 1px solid color-mix(in oklab, var(--md-outline) 65%, transparent);
  background: color-mix(in oklab, var(--md-surface) 70%, transparent);
}

.footer-note {
  text-align: center;
  color: var(--md-on-surface-variant);
  font-size: 0.9rem;
  padding: 1.5rem 1rem 2rem;
}

.under-wrap {
  display: grid;
  place-items: center;
  min-height: calc(100vh - 85px);
}

.under-card {
  max-width: 650px;
  padding: 1.5rem;
}

.docs-layout {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
  padding: 1rem;
  max-width: 1240px;
  margin: 0 auto;
}

.sidebar {
  position: sticky;
  top: 76px;
  padding: 1rem;
  max-height: calc(100vh - 90px);
  overflow-y: auto;
}

.sidebar h2 {
  font-size: 1rem;
}

.sidebar input {
  width: 100%;
  margin-top: 0.6rem;
  border-radius: var(--md-radius-md);
  border: 1px solid color-mix(in oklab, var(--md-outline) 55%, transparent);
  background: color-mix(in oklab, var(--md-surface) 78%, transparent);
  color: var(--md-on-surface);
  padding: 0.7rem;
}

.sidebar-caption {
  margin: 0.7rem 0;
  color: var(--md-on-surface-variant);
  font-size: 0.9rem;
}

.category-nav {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.category-nav a {
  text-decoration: none;
  color: var(--md-on-surface);
  padding: 0.45rem 0.55rem;
  border-radius: 10px;
  font-size: 0.92rem;
}

.category-nav a:hover {
  background: color-mix(in oklab, var(--md-primary) 10%, transparent);
}

.docs-content {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.intro-card,
.function-group {
  padding: 1rem;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.8rem;
}

.chip {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  font-size: 0.82rem;
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
}

.plain-list {
  margin: 0.35rem 0 0;
  padding-left: 1.1rem;
  line-height: 1.6;
}

.function-sections {
  display: grid;
  gap: 0.9rem;
}

.function-group h3 {
  margin-bottom: 0.25rem;
}

.function-group p {
  color: var(--md-on-surface-variant);
  margin-bottom: 0.7rem;
}

.function-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 0.8rem;
}

.function-item {
  padding: 0.8rem;
  border-left: 3px solid var(--md-primary);
  border-radius: 0 var(--md-radius-md) var(--md-radius-md) 0;
  background: color-mix(in oklab, var(--md-surface) 85%, transparent);
}

.function-item h4 {
  margin: 0 0 0.4rem 0;
  font-size: 0.95rem;
  color: var(--md-on-surface);
  font-weight: 600;
  letter-spacing: -0.01em;
}

.function-item h2 {
  margin: 0 0 0.5rem 0;
  font-size: 1.3rem;
  color: var(--md-on-surface);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.function-sig {
  margin: 0.3rem 0;
  padding: 0.5rem 0.8rem;
  background: color-mix(in oklab, var(--md-primary) 12%, transparent);
  border-radius: var(--md-radius-md);
  font-size: 0.95rem;
  line-height: 1.6;
  overflow-x: auto;
}

.function-sig code {
  color: var(--md-primary);
  font-family: 'Courier New', monospace;
  font-size: 1em;
}

.function-params {
  margin: 0.6rem 0 0 0;
  padding: 0.6rem 0 0 0;
  border-top: 1px solid color-mix(in oklab, var(--md-outline) 20%, transparent);
  list-style: none;
}

.function-params li {
  margin: 0.4rem 0;
  padding: 0.4rem 0.6rem;
  background: color-mix(in oklab, var(--md-surface-variant) 30%, transparent);
  border-radius: var(--md-radius-md);
  font-size: 0.9rem;
  line-height: 1.5;
}

.function-params strong {
  color: var(--md-primary);
  font-weight: 600;
}

.function-params em {
  color: var(--md-secondary);
  font-style: normal;
  font-size: 0.85em;
}

.function-desc {
  margin: 0.4rem 0;
  color: var(--md-on-surface);
  font-size: 0.9rem;
  line-height: 1.5;
}

.function-examples {
  margin: 0.5rem 0 0 0;
  padding: 0.8rem;
  background: color-mix(in oklab, var(--md-secondary) 10%, transparent);
  border-radius: var(--md-radius-md);
  font-size: 0.95rem;
}

.function-examples strong {
  color: var(--md-on-surface);
  font-weight: 600;
  display: block;
  margin-bottom: 0.5rem;
}

.function-examples code {
  display: block;
  padding: 0.5rem 0.7rem;
  margin: 0.3rem 0;
  background: color-mix(in oklab, var(--md-surface-variant) 50%, transparent);
  border-radius: 4px;
  color: var(--md-secondary);
  font-family: 'Courier New', monospace;
  font-size: 0.95em;
  line-height: 1.5;
}

.example-item {
  margin: 0.5rem 0;
}

.example-item code {
  display: block;
  padding: 0.5rem 0.7rem;
  background: color-mix(in oklab, var(--md-surface-variant) 50%, transparent);
  border-radius: 4px;
  color: var(--md-secondary);
  font-family: 'Courier New', monospace;
  font-size: 0.95em;
  margin-bottom: 0.3rem;
}

.example-item p {
  margin: 0;
  padding: 0.3rem 0.7rem;
  color: var(--md-on-surface-variant);
  font-size: 0.88rem;
  font-style: italic;
}

.function-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag {
  font-size: 0.83rem;
  padding: 0.34rem 0.58rem;
  border-radius: 999px;
  border: 1px solid color-mix(in oklab, var(--md-outline) 55%, transparent);
  background: color-mix(in oklab, var(--md-surface) 82%, transparent);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

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

  .sidebar {
    position: static;
    max-height: none;
  }
}