:root {
  --portal-width: 1240px;
  --portal-header: 76px;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--portal-header) + 20px);
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--color-on-background);
  background: var(--color-background);
}

body,
button {
  font-family: var(--font-sans);
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

a {
  color: inherit;
  text-decoration: none;
}

button:focus-visible,
a:focus-visible {
  outline: 3px solid var(--aquamarine);
  outline-offset: 3px;
}

.portal-header {
  position: sticky;
  z-index: 100;
  top: 0;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: var(--portal-header);
  padding: 0 max(24px, calc((100vw - var(--portal-width)) / 2));
  border-bottom: 1px solid
    color-mix(in srgb, var(--color-outline-subtle) 75%, transparent);
  background: color-mix(in srgb, var(--color-background) 88%, transparent);
  backdrop-filter: blur(22px);
}

.portal-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  justify-self: start;
}

.portal-brand img {
  width: 116px;
  height: auto;
}

.portal-brand span {
  padding-left: 14px;
  border-left: 1px solid var(--color-outline);
  color: var(--color-on-dimmed);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.logo-dark {
  display: none;
}

[data-theme="dark"] .logo-light {
  display: none;
}

[data-theme="dark"] .logo-dark {
  display: block;
}

.portal-header nav {
  display: flex;
  gap: 30px;
}

.portal-header nav a {
  position: relative;
  color: var(--color-on-dimmed);
  font-size: 14px;
  font-weight: 600;
}

.portal-header nav a::after {
  position: absolute;
  right: 0;
  bottom: -10px;
  left: 0;
  height: 2px;
  border-radius: var(--radius-pill);
  background: var(--violet);
  content: "";
  opacity: 0;
  transform: scaleX(0.45);
  transition:
    opacity var(--dur-fast) var(--ease-standard),
    transform var(--dur-fast) var(--ease-standard);
}

.portal-header nav a:hover::after {
  opacity: 1;
  transform: scaleX(1);
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  justify-self: end;
  min-height: 40px;
  padding: 0 15px;
  border: 1px solid var(--color-outline-subtle);
  border-radius: var(--radius-pill);
  color: var(--color-on-background);
  background: var(--color-surface);
  cursor: pointer;
}

.theme-indicator {
  position: relative;
  width: 17px;
  height: 17px;
  border: 1.5px solid currentColor;
  border-radius: 50%;
}

.theme-indicator::after {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
  content: "";
}

.portal-hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(430px, 0.95fr);
  gap: 72px;
  align-items: center;
  max-width: var(--portal-width);
  min-height: calc(100vh - var(--portal-header));
  padding: 80px 24px 105px;
  margin: 0 auto;
}

.portal-overline {
  margin: 0 0 14px;
  color: var(--violet);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.portal-hero h1 {
  margin: 0;
  font-size: clamp(54px, 6.3vw, 86px);
  font-weight: var(--weight-semibold);
  letter-spacing: -0.052em;
  line-height: 0.96;
}

.portal-hero h1 span {
  color: var(--violet);
}

.hero-lede {
  max-width: 650px;
  margin: 30px 0 0;
  color: var(--color-on-dimmed);
  font-size: 19px;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  gap: 12px;
  margin-top: 34px;
}

.portal-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: var(--radius-lg);
  font-size: 15px;
  font-weight: 700;
  transition:
    transform var(--dur-fast) var(--ease-standard),
    background var(--dur-fast) var(--ease-standard),
    box-shadow var(--dur-fast) var(--ease-standard);
}

.portal-button:hover {
  transform: translateY(-2px);
}

.portal-button.primary {
  color: var(--aquamarine);
  background: var(--violet);
  box-shadow: 0 13px 30px rgba(110, 64, 243, 0.24);
}

.portal-button.primary:hover {
  background: #5f32e5;
}

.portal-button.secondary {
  border-color: var(--color-outline-subtle);
  color: var(--color-on-background);
  background: var(--color-surface);
}

.principles {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 40px;
}

.principles span {
  padding: 7px 12px;
  border: 1px solid var(--color-outline-subtle);
  border-radius: var(--radius-pill);
  color: var(--color-on-dimmed);
  background: color-mix(in srgb, var(--color-surface) 72%, transparent);
  font-size: 12px;
  font-weight: 600;
}

.hero-system {
  position: relative;
  min-height: 570px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 38px;
  color: white;
  background:
    radial-gradient(
      circle at 82% 12%,
      rgba(102, 230, 181, 0.34),
      transparent 28%
    ),
    radial-gradient(
      circle at 9% 88%,
      rgba(169, 144, 239, 0.48),
      transparent 35%
    ),
    linear-gradient(145deg, #6e40f3 0%, #5338a0 45%, #201839 100%);
  box-shadow: 0 40px 85px rgba(40, 27, 85, 0.27);
  isolation: isolate;
  overflow: hidden;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(
    rgba(255, 255, 255, 0.25) 1px,
    transparent 1px
  );
  background-size: 28px 28px;
  opacity: 0.2;
  mask-image: linear-gradient(to bottom, black, transparent 84%);
}

.system-mark {
  position: absolute;
  z-index: 1;
  top: 52px;
  right: 44px;
  left: 44px;
  padding: 34px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-xl);
  background: rgba(32, 24, 57, 0.36);
  backdrop-filter: blur(16px);
}

.system-mark img {
  display: block;
  width: min(100%, 360px);
}

.system-mark p {
  margin: 18px 0 0;
  color: var(--aquamarine);
  font-size: 13px;
  letter-spacing: 0.09em;
}

.system-stats {
  position: absolute;
  right: 34px;
  bottom: 90px;
  left: 34px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.system-stats article {
  display: flex;
  flex-direction: column;
  min-height: 100px;
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(10px);
}

.system-stats strong {
  color: var(--aquamarine);
  font-size: 30px;
  line-height: 1;
}

.system-stats span {
  margin-top: auto;
  color: rgba(255, 255, 255, 0.75);
  font-size: 11px;
  font-weight: 600;
}

.system-status {
  position: absolute;
  bottom: 34px;
  left: 36px;
  display: flex;
  gap: 8px;
  align-items: center;
  color: rgba(255, 255, 255, 0.75);
  font-size: 11px;
  font-weight: 600;
}

.status-pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--aquamarine);
  box-shadow: 0 0 0 5px rgba(102, 230, 181, 0.14);
}

.portal-intro,
.catalog-section,
.resource-section {
  max-width: var(--portal-width);
  padding: 112px 24px;
  margin: 0 auto;
}

.portal-intro {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: 80px;
  align-items: start;
  border-top: 1px solid var(--color-outline-subtle);
}

.portal-intro h2,
.section-heading h2,
.mobile-copy h2 {
  margin: 0;
  font-size: clamp(38px, 4.6vw, 62px);
  letter-spacing: -0.043em;
  line-height: 1.02;
}

.architecture {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.architecture article {
  min-height: 210px;
  padding: 24px;
  border: 1px solid var(--color-outline-subtle);
  border-radius: var(--radius-xl);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}

.architecture article > span {
  color: var(--lilac);
  font-size: 12px;
  font-weight: 700;
}

.architecture strong {
  display: block;
  margin-top: 50px;
  font-size: 18px;
}

.architecture p {
  margin: 6px 0 0;
  color: var(--color-on-dimmed);
  font-size: 13px;
  line-height: 1.5;
}

.catalog-section.component-section,
.mobile-section {
  position: relative;
  max-width: none;
}

.catalog-section.component-section::before {
  position: absolute;
  z-index: -1;
  inset: 0;
  background: var(--color-surface-dimmed);
  content: "";
}

.catalog-section.component-section > *,
.mobile-section > * {
  max-width: calc(var(--portal-width) - 48px);
  margin-right: auto;
  margin-left: auto;
}

.section-heading {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 80px;
  align-items: end;
  margin-bottom: 50px;
}

.section-heading > p {
  margin: 0;
  color: var(--color-on-dimmed);
  font-size: 16px;
  line-height: 1.65;
}

.section-heading code {
  padding: 2px 6px;
  border-radius: 5px;
  color: var(--violet);
  background: var(--light-lilac);
  font: inherit;
  font-size: 13px;
}

.group-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 30px;
}

.group-tabs button {
  min-height: 40px;
  padding: 0 16px;
  border: 1px solid var(--color-outline-subtle);
  border-radius: var(--radius-chip);
  color: var(--color-on-dimmed);
  background: var(--color-surface);
  cursor: pointer;
}

.group-tabs button.active {
  border-color: var(--violet);
  color: var(--violet);
  background: var(--light-lilac);
  font-weight: 700;
}

.specimen-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.specimen-card {
  min-width: 0;
  border: 1px solid var(--color-outline-subtle);
  border-radius: var(--radius-xl);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.specimen-meta {
  display: flex;
  gap: 20px;
  align-items: start;
  justify-content: space-between;
  min-height: 126px;
  padding: 24px;
}

.specimen-group {
  color: var(--violet);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.specimen-title {
  margin: 6px 0 2px;
  color: var(--color-on-background);
  font-size: 20px;
}

.specimen-subtitle {
  margin: 0;
  color: var(--color-on-dimmed);
  font-size: 12px;
}

.preview-button {
  min-height: 36px;
  padding: 0 14px;
  border: 1px solid var(--color-outline-subtle);
  border-radius: var(--radius-chip);
  color: var(--color-on-background);
  background: transparent;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
}

.preview-button:hover {
  border-color: var(--violet);
  color: var(--violet);
}

.frame-shell {
  min-width: 0;
  border-top: 1px solid var(--color-outline-subtle);
  background: var(--lavender);
  overflow: hidden;
}

.specimen-frame {
  display: block;
  width: 100%;
  min-height: 210px;
  border: 0;
  background: var(--lavender);
}

.component-summary {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-bottom: 30px;
}

.component-summary div {
  display: flex;
  min-height: 105px;
  padding: 18px;
  border: 1px solid var(--color-outline-subtle);
  border-radius: var(--radius-lg);
  background: color-mix(in srgb, var(--color-surface) 84%, transparent);
  flex-direction: column;
}

.component-summary strong {
  font-size: 14px;
}

.component-summary span {
  margin-top: auto;
  color: var(--color-on-dimmed);
  font-size: 11px;
  line-height: 1.45;
}

.mobile-section {
  display: grid;
  grid-template-columns: 0.65fr 1.35fr;
  gap: 70px;
  align-items: center;
  padding: 100px max(24px, calc((100vw - var(--portal-width)) / 2));
  color: var(--lavender);
  background:
    radial-gradient(
      circle at 90% 14%,
      rgba(110, 64, 243, 0.4),
      transparent 30%
    ),
    radial-gradient(
      circle at 7% 92%,
      rgba(102, 230, 181, 0.16),
      transparent 29%
    ),
    var(--dark-plum);
}

.mobile-copy {
  max-width: 430px;
}

.mobile-copy .portal-overline {
  color: var(--aquamarine);
}

.mobile-copy > p:not(.portal-overline) {
  margin: 22px 0;
  color: #c7c2d7;
  line-height: 1.65;
}

.mobile-copy ul {
  padding: 0;
  margin: 28px 0 34px;
  list-style: none;
}

.mobile-copy li {
  position: relative;
  padding: 8px 0 8px 22px;
  color: #d8d4e5;
  font-size: 13px;
}

.mobile-copy li::before {
  position: absolute;
  top: 14px;
  left: 2px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--aquamarine);
  content: "";
}

.mobile-preview {
  min-width: 0;
  height: 790px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-2xl);
  background: rgba(255, 255, 255, 0.05);
  box-shadow: 0 40px 80px rgba(0, 0, 0, 0.32);
  overflow: hidden;
}

.mobile-preview iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.resource-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.resource-grid > a {
  display: flex;
  min-height: 220px;
  padding: 24px;
  border: 1px solid var(--color-outline-subtle);
  border-radius: var(--radius-xl);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
  flex-direction: column;
  transition:
    transform var(--dur-fast) var(--ease-standard),
    border-color var(--dur-fast) var(--ease-standard);
}

.resource-grid > a:hover {
  border-color: var(--violet);
  transform: translateY(-3px);
}

.resource-grid small {
  color: var(--violet);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.resource-grid strong {
  margin-top: 10px;
  font-size: 20px;
}

.resource-grid span {
  margin-top: 7px;
  color: var(--color-on-dimmed);
  font-size: 13px;
  line-height: 1.5;
}

.resource-grid b {
  margin-top: auto;
  color: var(--violet);
  font-size: 12px;
}

.usage-callout {
  display: grid;
  grid-template-columns: 0.75fr 1.25fr;
  gap: 50px;
  align-items: center;
  padding: 38px;
  margin-top: 50px;
  border-radius: var(--radius-xl);
  color: white;
  background: var(--midnight);
}

.usage-callout h3 {
  margin: 0;
  font-size: 28px;
  letter-spacing: -0.025em;
}

.usage-callout .portal-overline {
  color: var(--aquamarine);
}

.usage-callout pre {
  padding: 20px;
  margin: 0;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  background: rgba(0, 0, 0, 0.2);
  overflow: auto;
}

.usage-callout code {
  color: #dcd8e8;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
  line-height: 1.75;
}

.portal-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--portal-width);
  padding: 40px 24px 54px;
  margin: 0 auto;
  border-top: 1px solid var(--color-outline-subtle);
}

.portal-footer p {
  color: var(--color-on-dimmed);
  font-size: 12px;
}

.preview-dialog {
  width: min(940px, calc(100vw - 40px));
  height: min(760px, calc(100vh - 40px));
  padding: 0;
  border: 1px solid var(--color-outline);
  border-radius: var(--radius-xl);
  color: var(--color-on-background);
  background: var(--color-surface);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.preview-dialog::backdrop {
  background: var(--backdrop);
  backdrop-filter: blur(8px);
}

.dialog-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  padding: 0 22px;
  border-bottom: 1px solid var(--color-outline-subtle);
}

.dialog-bar > div:first-child {
  display: flex;
  flex-direction: column;
}

.dialog-group {
  color: var(--violet);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.dialog-title {
  font-size: 17px;
}

.dialog-actions {
  display: flex;
  gap: 8px;
}

.dialog-actions a,
.dialog-actions button {
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid var(--color-outline-subtle);
  border-radius: var(--radius-chip);
  color: var(--color-on-background);
  background: var(--color-surface);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
}

.dialog-actions a {
  display: inline-flex;
  align-items: center;
}

.dialog-frame {
  width: 100%;
  height: calc(100% - 73px);
  border: 0;
  background: var(--lavender);
}

@media (max-width: 1000px) {
  .portal-header {
    grid-template-columns: 1fr auto;
  }

  .portal-header nav {
    display: none;
  }

  .portal-hero {
    grid-template-columns: 1fr;
  }

  .hero-system {
    min-height: 540px;
  }

  .portal-intro {
    grid-template-columns: 1fr;
    gap: 45px;
  }

  .component-summary,
  .resource-grid {
    grid-template-columns: 1fr 1fr;
  }

  .mobile-section {
    grid-template-columns: 1fr;
  }

  .mobile-copy {
    max-width: 650px;
  }
}

@media (max-width: 720px) {
  :root {
    --portal-header: 66px;
  }

  .portal-header {
    padding: 0 16px;
  }

  .portal-brand img {
    width: 102px;
  }

  .portal-header .portal-brand span,
  .theme-label {
    display: none;
  }

  .portal-header .portal-brand img {
    padding: 0;
    border: 0;
  }

  .theme-toggle {
    width: 40px;
    padding: 0;
    justify-content: center;
  }

  .portal-hero,
  .portal-intro,
  .catalog-section,
  .resource-section {
    padding: 72px 18px;
  }

  .portal-hero {
    gap: 46px;
  }

  .portal-hero h1 {
    font-size: 50px;
  }

  .hero-lede {
    font-size: 17px;
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .hero-system {
    min-height: 460px;
    border-radius: 28px;
  }

  .system-mark {
    top: 28px;
    right: 22px;
    left: 22px;
    padding: 24px;
  }

  .system-stats {
    right: 18px;
    bottom: 78px;
    left: 18px;
  }

  .system-stats article {
    min-height: 92px;
    padding: 13px;
  }

  .system-stats strong {
    font-size: 24px;
  }

  .architecture,
  .section-heading,
  .specimen-grid,
  .component-summary,
  .resource-grid,
  .usage-callout {
    grid-template-columns: 1fr;
  }

  .section-heading {
    gap: 22px;
    margin-bottom: 36px;
  }

  .architecture article {
    min-height: 170px;
  }

  .architecture strong {
    margin-top: 30px;
  }

  .group-tabs {
    padding-bottom: 6px;
    overflow-x: auto;
  }

  .group-tabs button {
    flex: 0 0 auto;
  }

  .mobile-section {
    padding: 78px 18px;
  }

  .mobile-preview {
    height: 760px;
  }

  .usage-callout {
    gap: 28px;
    padding: 26px;
  }

  .portal-footer {
    align-items: start;
    flex-direction: column;
    gap: 20px;
    padding: 34px 18px;
  }

  .preview-dialog {
    width: calc(100vw - 20px);
    height: calc(100vh - 20px);
  }

  .dialog-bar {
    padding: 0 14px;
  }

  .open-page {
    display: none !important;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}