:root {
  --color-poster-ink: var(--color-text);
  --color-poster-line: var(--color-accent-deep);
  --color-flag-red: #C93A2E;
  --color-flag-blue: #284C8C;
  --color-flag-light: #FFFFFF;
  --color-flag-paper: #F6F6F4;
  --color-flag-ink: #191A15;
}

.home-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-bg);
  background-image: radial-gradient(var(--color-dot) 1px, transparent 1px);
  background-size: 22px 22px;
  padding-top: 40px;
  padding-bottom: 44px;
}

.hero-split {
  display: grid;
  min-width: 0;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.92fr);
  align-items: stretch;
  gap: 44px;
}

.hero-copy {
  min-width: 0;
  padding-top: 10px;
  padding-bottom: 8px;
}

.hero-kicker {
  display: inline-flex;
  max-width: 100%;
  min-height: 31px;
  align-items: center;
  gap: 9px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-bg);
  color: var(--color-muted);
  padding: 5px 12px;
  font-family: var(--font-mono);
  font-size: 11px;
}

.hero-copy h1 {
  max-width: 680px;
  margin-top: 16px;
}

.hero-copy .button-row {
  margin-top: 22px;
}

.hero-copy .lede {
  max-width: 700px;
  margin-top: 18px;
}

.hero-facts {
  margin-top: 18px;
}

.hero-link-group {
  margin-top: 17px;
}

.hero-link-label {
  margin-bottom: 8px;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
}

.hero-platforms,
.hero-flags {
  display: flex;
  max-width: 100%;
  flex-wrap: wrap;
  gap: 8px;
}

.hero-platforms .platform-chip,
.hero-flags .flag-chip {
  min-height: 34px;
}

.hero-platforms .platform-chip {
  transition: border-color var(--transition-fast);
}

.hero-platforms .platform-chip:hover {
  border-color: var(--color-text);
}

.hero-flags svg {
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-flag-paper);
}

.flag-red {
  fill: var(--color-flag-red);
}

.flag-blue {
  fill: var(--color-flag-blue);
}

.flag-light {
  fill: var(--color-flag-light);
}

.flag-paper {
  fill: var(--color-flag-paper);
}

.flag-ink {
  fill: var(--color-flag-ink);
}

.hero-poster {
  position: relative;
  min-width: 0;
  min-height: 520px;
  overflow: hidden;
  border: 1px solid var(--color-text);
  border-radius: var(--radius-xl);
  background: var(--color-accent);
  color: var(--color-poster-ink);
}

.hero-poster::before,
.hero-poster::after {
  position: absolute;
  content: "";
}

.hero-poster::before {
  inset: 0;
  background-image:
    linear-gradient(90deg, transparent 49.7%, var(--color-poster-line) 50%, transparent 50.3%),
    linear-gradient(transparent 49.7%, var(--color-poster-line) 50%, transparent 50.3%);
  background-size: 58px 58px;
  opacity: 0.22;
}

.hero-poster::after {
  top: -24%;
  right: -30%;
  width: 88%;
  aspect-ratio: 1;
  border: 1px solid var(--color-poster-ink);
  border-radius: 50%;
}

.poster-word {
  position: absolute;
  top: 45%;
  left: 48%;
  color: var(--color-poster-ink);
  font-family: var(--font-display);
  font-size: clamp(210px, 24vw, 350px);
  font-weight: 650;
  line-height: 0.7;
  transform: translate(-50%, -50%);
}

.poster-ring {
  position: absolute;
  border: 1px solid var(--color-poster-ink);
  border-radius: 50%;
}

.poster-ring-one {
  top: 10%;
  right: 7%;
  width: 46%;
  aspect-ratio: 1;
}

.poster-ring-two {
  bottom: 14%;
  left: -14%;
  width: 54%;
  aspect-ratio: 1;
}

.poster-node {
  position: absolute;
  width: 13px;
  height: 13px;
  border: 3px solid var(--color-accent);
  border-radius: 50%;
  background: var(--color-poster-ink);
}

.poster-node-one {
  top: 17%;
  right: 24%;
}

.poster-node-two {
  right: 13%;
  bottom: 27%;
}

.poster-node-three {
  bottom: 20%;
  left: 12%;
}

.poster-protocols {
  position: absolute;
  top: 24px;
  left: 24px;
  display: flex;
  max-width: calc(100% - 48px);
  flex-wrap: wrap;
  gap: 7px;
}

.poster-protocols span {
  border: 1px solid var(--color-poster-ink);
  border-radius: var(--radius-pill);
  padding: 4px 9px;
  font-family: var(--font-mono);
  font-size: 10px;
}

.poster-core {
  position: absolute;
  right: 24px;
  bottom: 22px;
  max-width: calc(100% - 48px);
  border: 1px solid var(--color-poster-ink);
  background: var(--color-accent);
  padding: 12px 15px;
}

.poster-core small,
.poster-core strong {
  display: block;
}

.poster-core small {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
}

.poster-core strong {
  margin-top: 3px;
  font-size: 16px;
}

.fact-strip {
  overflow-x: clip;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-text);
  color: var(--color-bg);
}

.fact-strip-inner {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.fact-strip-inner span {
  min-width: 0;
  border-left: 1px solid var(--color-code-line);
  padding: 17px 14px;
  color: var(--color-code-key);
  font-family: var(--font-mono);
  font-size: 11px;
  text-align: center;
}

.fact-strip-inner span:last-child {
  border-right: 1px solid var(--color-code-line);
}

.fact-strip-inner b {
  margin-right: 5px;
  color: var(--color-accent);
  font-weight: 650;
}

.section-heading-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 34px;
}

.section-heading-row .lede {
  margin-top: 18px;
}

.home-feature-tabs {
  margin-top: 42px;
}

.home-feature-tabs .tab-list {
  width: max-content;
  max-width: 100%;
}

.feature-detail {
  min-width: 0;
}

.feature-detail-panel {
  display: grid;
  min-width: 0;
  min-height: 280px;
  grid-template-columns: minmax(0, 1fr) minmax(230px, 0.34fr);
  align-items: center;
  gap: 42px;
  margin-top: 18px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: var(--color-panel);
  padding: clamp(28px, 5vw, 54px);
}

.feature-detail-panel[hidden] {
  display: none;
}

.feature-detail-panel h3 span {
  color: var(--color-muted);
  font-weight: 400;
}

.feature-detail-panel p {
  max-width: 760px;
  margin-top: 16px;
  color: var(--color-muted);
}

.feature-setting-box {
  min-width: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  padding: 18px;
}

.feature-setting-box > span,
.feature-setting-box > strong {
  display: block;
  overflow-wrap: anywhere;
}

.feature-setting-box > span:first-child {
  color: var(--color-muted);
  font-size: 12px;
}

.feature-setting-box > strong {
  margin-top: 5px;
  font-size: 18px;
}

.feature-setting-box button {
  width: 100%;
  margin-top: 18px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  padding: 8px 12px;
}

.feature-setting-box .feature-state {
  margin-top: 17px;
  border-top: 1px solid var(--color-border);
  padding-top: 12px;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 10px;
}

.feature-setting-box .toggle {
  margin-top: 16px;
}

.home-mosaic {
  margin-top: 18px;
}

.home-mosaic-second {
  margin-top: 18px;
}

.home-mosaic .feature-panel {
  min-height: 420px;
}

.home-mosaic .feature-panel p {
  padding-bottom: 142px;
}

.platform-intro,
.quickstart-intro {
  margin-top: 18px;
}

.platform-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 42px;
}

.platform-card {
  display: flex;
  min-width: 0;
  min-height: 390px;
  flex-direction: column;
  align-items: flex-start;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: var(--color-bg);
  padding: clamp(25px, 4vw, 38px);
}

.platform-icon {
  display: grid;
  width: 54px;
  height: 54px;
  place-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  color: var(--color-text);
}

.platform-icon svg {
  width: 26px;
  height: 26px;
}

.platform-icon-linux svg {
  width: 25px;
  height: 30px;
}

.platform-card .label {
  margin-top: 22px;
}

.platform-card h3 {
  margin-top: 12px;
}

.platform-card p {
  margin-top: 14px;
  color: var(--color-muted);
}

.platform-card .button {
  margin-top: auto;
}

.section-link-row {
  display: flex;
  justify-content: flex-end;
  margin-top: 26px;
}

.text-link {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  font-weight: 650;
}

.text-link:hover {
  color: var(--color-accent-deep);
}

.quick-steps {
  display: grid;
  gap: 0;
  margin-top: 44px;
  list-style: none;
}

.quick-steps li {
  display: grid;
  min-width: 0;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 28px;
  border-top: 1px solid var(--color-border);
  padding-top: 30px;
  padding-bottom: 30px;
}

.quick-steps li:last-child {
  border-bottom: 1px solid var(--color-border);
}

.quick-step-number {
  color: var(--color-accent-deep);
  font-family: var(--font-mono);
  font-size: 13px;
}

.quick-steps p {
  max-width: 820px;
  margin-top: 10px;
  color: var(--color-muted);
}

.quickstart-action {
  display: flex;
  justify-content: flex-end;
  margin-top: 28px;
}

.trust-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.82fr) minmax(0, 1.18fr);
  gap: clamp(50px, 8vw, 110px);
}

.trust-heading {
  align-self: start;
}

.trust-heading .lede {
  margin-top: 18px;
}

.trust-copy {
  min-width: 0;
}

.trust-copy article {
  display: grid;
  min-width: 0;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 18px;
  border-top: 1px solid var(--color-border);
  padding-top: 28px;
  padding-bottom: 28px;
}

.trust-copy article:last-child {
  border-bottom: 1px solid var(--color-border);
}

.trust-index {
  color: var(--color-accent-deep);
  font-family: var(--font-mono);
  font-size: 11px;
}

.trust-copy p {
  margin-top: 11px;
  color: var(--color-muted);
}

.home-faq {
  margin-top: 40px;
}

.home-article-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 42px;
}

.home-article-grid .article-card {
  min-height: 370px;
}

.home-article-grid .term-meta {
  align-self: flex-start;
  margin-top: 16px;
  margin-bottom: 0;
}

.desktop-section-link {
  flex-shrink: 0;
}

.mobile-section-link {
  display: none;
  margin-top: 24px;
}

@media (max-width: 1040px) {
  .hero-split {
    grid-template-columns: minmax(0, 1fr) minmax(300px, 0.72fr);
    gap: 28px;
  }

  .hero-poster {
    min-height: 500px;
  }

  .fact-strip-inner {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .fact-strip-inner span:nth-child(4),
  .fact-strip-inner span:nth-child(5) {
    border-top: 1px solid var(--color-code-line);
  }

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

  .home-article-grid .article-card:last-child {
    grid-column: 1 / -1;
  }
}

@media (max-width: 820px) {
  .hero-split {
    grid-template-columns: 1fr;
  }

  .hero-poster {
    min-height: 360px;
  }

  .feature-detail-panel {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .feature-setting-box {
    max-width: 440px;
  }

  .trust-layout {
    grid-template-columns: 1fr;
  }

  .platform-grid {
    grid-template-columns: 1fr;
  }

  .platform-card {
    min-height: 350px;
  }
}

@media (max-width: 760px) {
  .home-mosaic .feature-panel {
    min-height: 400px;
  }

  .home-article-grid {
    grid-template-columns: 1fr;
  }

  .home-article-grid .article-card:last-child {
    grid-column: auto;
  }
}

@media (max-width: 640px) {
  .home-hero {
    padding-top: 24px;
    padding-bottom: 32px;
  }

  .hero-copy {
    padding-top: 0;
  }

  .hero-copy .button-row {
    margin-top: 18px;
  }

  .hero-copy .lede {
    margin-top: 15px;
    font-size: 15px;
  }

  .hero-facts {
    gap: 6px;
    margin-top: 14px;
  }

  .hero-facts .chip {
    min-height: 27px;
    padding-top: 3px;
    padding-bottom: 3px;
    font-size: 10px;
  }

  .hero-link-group {
    margin-top: 14px;
  }

  .hero-platforms,
  .hero-flags {
    gap: 6px;
  }

  .hero-platforms .platform-chip,
  .hero-flags .flag-chip {
    min-height: 31px;
    padding: 5px 9px;
    font-size: 11px;
  }

  .hero-poster {
    min-height: 300px;
  }

  .poster-protocols {
    top: 16px;
    left: 16px;
    max-width: calc(100% - 32px);
  }

  .poster-core {
    right: 16px;
    bottom: 16px;
  }

  .poster-word {
    font-size: 210px;
  }

  .fact-strip-inner {
    grid-template-columns: 1fr 1fr;
  }

  .fact-strip-inner span {
    border-top: 1px solid var(--color-code-line);
    padding: 13px 8px;
    font-size: 9px;
  }

  .fact-strip-inner span:first-child,
  .fact-strip-inner span:nth-child(2) {
    border-top: 0;
  }

  .fact-strip-inner span:last-child {
    grid-column: 1 / -1;
  }

  .section-heading-row {
    align-items: flex-start;
    flex-direction: column;
  }

  .section-heading-row > * {
    min-width: 0;
  }

  .section-heading-row .keyword-lock {
    white-space: normal;
  }

  .home-feature-tabs {
    margin-top: 30px;
  }

  .feature-detail-panel {
    min-height: 0;
    padding: 24px 20px;
  }

  .home-mosaic .feature-panel {
    min-height: 440px;
  }

  .home-mosaic .feature-panel p {
    padding-bottom: 156px;
  }

  .platform-grid {
    margin-top: 30px;
  }

  .platform-card {
    min-height: 390px;
  }

  .quick-steps li {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .quickstart-action {
    justify-content: stretch;
  }

  .quickstart-action .button {
    width: 100%;
  }

  .trust-copy article {
    grid-template-columns: 36px minmax(0, 1fr);
    gap: 10px;
  }

  .desktop-section-link {
    display: none;
  }

  .mobile-section-link {
    display: block;
  }
}