:root {
  --bg: #f5f6fa;
  --bg-elevated: #ffffff;
  --bg-soft: #eef1f7;
  --panel: rgba(255, 255, 255, 0.9);
  --panel-strong: rgba(255, 255, 255, 0.98);
  --line: rgba(21, 27, 42, 0.08);
  --line-strong: rgba(21, 27, 42, 0.14);
  --text: #11141d;
  --muted: #5d6678;
  --accent: #d7343a;
  --accent-strong: #9f121b;
  --accent-soft: rgba(215, 52, 58, 0.1);
  --success: #16744b;
  --shadow-sm: 0 12px 36px rgba(17, 20, 29, 0.06);
  --shadow-lg: 0 28px 90px rgba(17, 20, 29, 0.1);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --content-width: 1240px;
  --content-pad: 24px;
}

html[data-theme="dark"] {
  --bg: #090b11;
  --bg-elevated: #0f131c;
  --bg-soft: #151a24;
  --panel: rgba(18, 22, 31, 0.9);
  --panel-strong: rgba(18, 22, 31, 0.98);
  --line: rgba(255, 255, 255, 0.07);
  --line-strong: rgba(255, 255, 255, 0.12);
  --text: #f4f6fb;
  --muted: #a4acbf;
  --accent-soft: rgba(215, 52, 58, 0.16);
  --shadow-sm: 0 16px 44px rgba(0, 0, 0, 0.22);
  --shadow-lg: 0 34px 100px rgba(0, 0, 0, 0.32);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Barlow", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top right, rgba(215, 52, 58, 0.12), transparent 28%),
    radial-gradient(circle at top left, rgba(17, 20, 29, 0.04), transparent 22%),
    linear-gradient(180deg, var(--bg) 0%, color-mix(in srgb, var(--bg) 88%, white 12%) 100%);
  transition: background 220ms ease, color 220ms ease;
}

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

img {
  max-width: 100%;
  display: block;
}

.site-shell {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 20px var(--content-pad) 52px;
}

.ambient-glow {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 18% 14%, rgba(215, 52, 58, 0.12), transparent 24%),
    radial-gradient(circle at 82% 16%, rgba(17, 20, 29, 0.08), transparent 24%);
  opacity: 0.9;
  z-index: -1;
}

.topbar,
.footer,
.topbar-right,
.topnav,
.hero-actions,
.footer-links,
.topbar-utility,
.toggle-track,
.coming-soon-stack,
.version-row,
.article-meta {
  display: flex;
  align-items: center;
}

.topbar,
.footer,
.version-row,
.article-meta {
  justify-content: space-between;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  margin-bottom: 18px;
  padding: 12px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: color-mix(in srgb, var(--panel-strong) 88%, transparent 12%);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-sm);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.06rem;
  font-weight: 700;
}

.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 13px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--line);
  background: #0e1016;
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.brand-lockup small {
  display: block;
  margin-top: 2px;
  color: var(--muted);
  font-family: "Barlow", sans-serif;
  font-size: 0.72rem;
  font-weight: 600;
}

.topbar-right,
.topnav,
.hero-actions,
.footer-links,
.topbar-utility {
  gap: 14px;
}

.topnav a,
.footer-links a {
  color: var(--muted);
  font-weight: 700;
  transition: color 180ms ease, transform 180ms ease;
}

.topnav a:hover,
.footer-links a:hover {
  color: var(--text);
  transform: translateY(-1px);
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 9px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--bg-elevated);
  box-shadow: var(--shadow-sm);
}

.theme-toggle span {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.theme-toggle button {
  padding: 0;
  border: 0;
  background: none;
  cursor: pointer;
}

.toggle-track {
  position: relative;
  width: 54px;
  height: 30px;
  padding: 3px;
  border-radius: 999px;
  background: linear-gradient(135deg, color-mix(in srgb, var(--bg-soft) 90%, white 10%), var(--bg-elevated));
  border: 1px solid var(--line);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.toggle-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #ff7663);
  box-shadow: 0 8px 20px rgba(215, 52, 58, 0.34);
  transform: translateX(0);
  transition: transform 220ms ease;
}

html[data-theme="dark"] .toggle-thumb {
  transform: translateX(24px);
}

.coming-soon-stack {
  gap: 8px;
}

.coming-soon-stack small {
  display: block;
  color: var(--accent-strong);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.ghost-button {
  padding: 10px 15px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: color-mix(in srgb, var(--bg-soft) 72%, transparent 28%);
  color: #8b90a1;
  font-weight: 800;
  cursor: not-allowed;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent-strong);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  font-family: "Space Grotesk", sans-serif;
}

p {
  margin: 0;
}

.hero {
  display: grid;
  gap: 20px;
  margin-top: 6px;
}

.hero-band {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 20px;
  align-items: stretch;
}

.hero-copy,
.hero-ribbon,
.feature-card,
.signal-card,
.highlight-card,
.legal-card,
.support-card,
.article-card,
.version-card,
.cta-card {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, color-mix(in srgb, var(--panel-strong) 92%, transparent 8%), color-mix(in srgb, var(--panel) 95%, transparent 5%));
  box-shadow: var(--shadow-sm);
}

.hero-copy::before,
.hero-ribbon::before,
.highlight-card::before,
.cta-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, rgba(215, 52, 58, 0.14), transparent 30%);
  pointer-events: none;
}

.hero-copy {
  padding: 34px;
}

.hero-copy h1 {
  max-width: 10ch;
  font-size: clamp(2.45rem, 4.4vw, 4.3rem);
  line-height: 0.98;
  letter-spacing: -0.04em;
}

.hero-copy .lede {
  margin-top: 14px;
  max-width: 58ch;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.62;
}

.hero-actions {
  margin-top: 20px;
  flex-wrap: wrap;
}

.hero-trust-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.hero-trust-strip span {
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg-elevated) 86%, transparent 14%);
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 17px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 800;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease, background 180ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button.primary {
  color: #fff;
  background: linear-gradient(135deg, var(--accent), #ff755b);
  box-shadow: 0 16px 30px rgba(215, 52, 58, 0.24);
}

.button.secondary {
  color: var(--text);
  background: color-mix(in srgb, var(--bg-elevated) 75%, transparent 25%);
  border-color: var(--line-strong);
}

.button.tertiary {
  color: var(--muted);
  background: transparent;
  border-color: var(--line);
}

.hero-ribbon {
  padding: 22px;
  display: grid;
  gap: 14px;
}

.ribbon-header {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 18px;
  align-items: start;
}

.ribbon-header h2 {
  font-size: clamp(1.45rem, 2vw, 2.05rem);
  line-height: 1.08;
}

.ribbon-header p {
  color: var(--muted);
  line-height: 1.55;
  max-width: 28ch;
  margin-top: 24px;
}

.pill-rail {
  display: grid;
  gap: 12px;
}

.rail-card {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 14px;
  align-items: center;
  padding: 14px 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg-elevated) 82%, transparent 18%);
}

.rail-index {
  min-width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-weight: 800;
}

.rail-copy strong {
  display: block;
  margin-bottom: 3px;
  font-size: 0.95rem;
}

.rail-copy span,
.rail-meta {
  color: var(--muted);
  font-size: 0.84rem;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.metric-card {
  padding: 16px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg-elevated) 88%, transparent 12%);
}

.metric-card span {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 800;
}

.metric-card strong {
  font-size: 1rem;
}

.section {
  margin-top: 28px;
}

.section-heading {
  max-width: 780px;
  margin-bottom: 16px;
}

.section-heading h2,
.legal-page h1 {
  font-size: clamp(1.9rem, 3.4vw, 3.1rem);
  letter-spacing: -0.03em;
}

.section-heading p,
.article-intro,
.legal-card p,
.legal-card li,
.support-card p,
.version-card li {
  color: var(--muted);
  line-height: 1.72;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.audience-grid,
.support-detail-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.feature-card {
  padding: 22px;
}

.audience-card {
  position: relative;
  overflow: hidden;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, color-mix(in srgb, var(--panel-strong) 92%, transparent 8%), color-mix(in srgb, var(--panel) 95%, transparent 5%));
  box-shadow: var(--shadow-sm);
}

.audience-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, rgba(215, 52, 58, 0.12), transparent 32%);
  pointer-events: none;
}

.audience-card h3 {
  font-size: 1.12rem;
}

.audience-card p {
  margin-top: 12px;
  color: var(--muted);
  line-height: 1.7;
}

.feature-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-size: 0.68rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.feature-card h3 {
  font-size: 1.12rem;
}

.feature-card p {
  margin-top: 12px;
  color: var(--muted);
  line-height: 1.7;
}

.signal-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 14px;
}

.signal-card,
.highlight-card,
.support-card,
.article-card,
.version-card,
.cta-card {
  padding: 22px;
}

.signal-list {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.signal-row {
  display: grid;
  grid-template-columns: 18px 1fr;
  gap: 12px;
}

.signal-dot {
  width: 12px;
  height: 12px;
  margin-top: 7px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #ff755b);
  box-shadow: 0 0 0 8px var(--accent-soft);
}

.signal-card strong {
  display: block;
  margin-bottom: 4px;
}

.highlight-card {
  display: grid;
  gap: 18px;
}

.highlight-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.highlight-pill {
  padding: 14px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg-elevated) 84%, transparent 16%);
}

.highlight-pill span {
  display: block;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 700;
}

.highlight-pill strong {
  display: block;
  margin-top: 6px;
}

.cta-card {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
}

.cta-copy p {
  margin-top: 12px;
  color: var(--muted);
  max-width: 50ch;
}

.footer {
  gap: 24px;
  margin-top: 40px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.footer p {
  margin-top: 6px;
  color: var(--muted);
}

.footer-links {
  flex-wrap: wrap;
}

.legal-page {
  display: grid;
  gap: 14px;
}

.article-card,
.legal-card {
  max-width: 980px;
}

.article-card {
  border-radius: 20px;
  overflow: visible;
}

.legal-card {
  border-radius: 18px;
  overflow: visible;
}

.article-meta {
  margin-top: 14px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: color-mix(in srgb, var(--bg-elevated) 88%, transparent 12%);
}

.article-meta strong {
  display: block;
  margin-bottom: 4px;
  font-size: 0.86rem;
}

.article-meta span {
  color: var(--muted);
  font-size: 0.84rem;
}

.legal-card h2 {
  margin-top: 22px;
  font-size: 1.08rem;
}

.legal-card h3 {
  margin-top: 14px;
  font-size: 0.94rem;
}

.legal-card h2:first-child {
  margin-top: 0;
}

.legal-card ul {
  margin: 12px 0 0;
  padding-left: 20px;
}

.legal-card li + li {
  margin-top: 8px;
}

.support-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.support-card h3 {
  margin-bottom: 12px;
}

.support-card a {
  color: var(--accent-strong);
  font-weight: 800;
}

.detail-list {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
}

.detail-list li + li {
  margin-top: 10px;
}

.changelog-list {
  display: grid;
  gap: 18px;
}

.version-card ul {
  margin: 12px 0 0;
  padding-left: 20px;
}

.version-row {
  gap: 16px;
}

.version-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-weight: 800;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.version-date {
  color: var(--muted);
  font-weight: 700;
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 550ms ease, transform 550ms ease;
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

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

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 1180px) {
  .hero-band,
  .signal-grid,
  .feature-grid,
  .support-grid,
  .audience-grid,
  .support-detail-grid {
    grid-template-columns: 1fr 1fr;
  }

  .hero-band > :first-child,
  .signal-grid > :first-child {
    grid-column: 1 / -1;
  }
}

@media (max-width: 960px) {
  .topbar,
  .topbar-right,
  .footer,
  .cta-card {
    flex-direction: column;
    align-items: flex-start;
  }

  .topbar {
    border-radius: 28px;
  }

  .topbar-right {
    width: 100%;
  }

  .topnav,
  .topbar-utility {
    flex-wrap: wrap;
  }

  .feature-grid,
  .support-grid,
  .signal-grid,
  .audience-grid,
  .support-detail-grid,
  .hero-band,
  .highlight-grid,
  .hero-metrics {
    grid-template-columns: 1fr;
  }

  .hero-copy,
  .hero-ribbon,
  .signal-card,
  .highlight-card,
  .cta-card,
  .support-card,
  .article-card,
  .version-card {
    padding: 20px;
  }

  .hero-copy h1 {
    max-width: 12ch;
  }

  .ribbon-header {
    grid-template-columns: 1fr;
  }

  .ribbon-header p {
    margin-top: 0;
    max-width: none;
  }
}

@media (max-width: 680px) {
  :root {
    --content-pad: 16px;
  }

  .site-shell {
    padding-top: 18px;
    padding-bottom: 48px;
  }

  .topbar {
    gap: 16px;
  }

  .brand {
    align-items: flex-start;
  }

  .hero-copy h1,
  .section-heading h2,
  .legal-page h1 {
    font-size: clamp(2.3rem, 9vw, 3.2rem);
  }

  .button {
    width: 100%;
  }

  .hero-actions {
    width: 100%;
  }

  .rail-card {
    grid-template-columns: auto 1fr;
  }

  .rail-meta {
    grid-column: 2;
  }
}