:root {
  --bg: #ede8da;
  --bg-elev: #e4dec9;
  --bg-soft: #f3efe3;
  --ink: #111518;
  --ink-dim: #59584f;
  --ink-faint: #9c947f;
  --rule: #c8c0ab;
  --rule-strong: #b4ab96;
  --rule-dashed: #9d9480;
  --signal: #0d6b62;
  --signal-soft: rgba(13, 107, 98, 0.78);
  --signal-wash: rgba(13, 107, 98, 0.1);
  --signal-line: rgba(13, 107, 98, 0.24);
  --paper-blue: #eef1f8;
  --grid-line: transparent;
  --font-mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --font-serif: "Instrument Serif", Georgia, serif;
  --hair: 1px;
  --page-width: 1180px;
  --section-copy-width: 64ch;
  --section-panel-width: 1080px;
  --section-wide-copy-width: min(100%, var(--section-panel-width));
}

html[data-mode="dark"] {
  --bg: #0b1014;
  --bg-elev: #121821;
  --bg-soft: #0f151c;
  --ink: #dbd4c3;
  --ink-dim: #8b8578;
  --ink-faint: #4b4840;
  --rule: #1d232b;
  --rule-strong: #2a313a;
  --rule-dashed: #313945;
  --signal: #4ee0cf;
  --signal-soft: rgba(78, 224, 207, 0.8);
  --signal-wash: rgba(78, 224, 207, 0.1);
  --signal-line: rgba(78, 224, 207, 0.24);
  --paper-blue: #eef1f8;
  --grid-line: rgba(255, 255, 255, 0.018);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.58;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  background-image:
    linear-gradient(to right, var(--grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
  background-size: 48px 48px;
  transition: background-color 0.28s ease, color 0.28s ease;
  overflow-x: hidden;
}

img {
  max-width: 100%;
}

button,
input,
textarea,
select {
  font: inherit;
}

button {
  background: none;
  border: 0;
  color: inherit;
  cursor: pointer;
}

button:focus-visible,
a:focus-visible,
input:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

code {
  font-family: var(--font-mono);
}

.page {
  width: min(var(--page-width), calc(100% - 48px));
  margin: 0 auto;
}

main {
  padding-bottom: 88px;
}

nav {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--bg);
  border-bottom: var(--hair) solid var(--rule);
}

.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 76px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  text-decoration: none;
  flex-shrink: 0;
}

.logo img {
  width: 34px;
  height: 34px;
  display: block;
}

.logo-wordmark {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.04em;
}

.logo-tag {
  color: var(--signal);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-shadow: 0 0 6px var(--signal-soft);
}

.nav-cluster {
  display: flex;
  align-items: center;
  gap: 18px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-links a {
  color: var(--ink-dim);
  text-decoration: none;
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: color 0.16s ease;
}

.nav-links a:hover {
  color: var(--ink);
}

.nav-links a.nav-link-strong,
.nav-links a.nav-link-signal {
  color: var(--ink);
}

.nav-links a.nav-link-signal {
  color: var(--signal);
}

.mode-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-width: 86px;
  padding: 8px 12px;
  border: var(--hair) solid var(--rule);
  color: var(--ink-dim);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  transition: border-color 0.16s ease, color 0.16s ease, background-color 0.16s ease;
}

.mode-toggle:hover {
  border-color: var(--signal);
  color: var(--signal);
  background: var(--signal-wash);
}

.meta-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  padding: 14px 0;
  border-bottom: var(--hair) solid var(--rule);
}

.meta-strip > div {
  display: inline-flex;
  gap: 8px;
}

.chrome {
  color: var(--ink-faint);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.chrome .label {
  color: var(--ink-faint);
}

.chrome .value {
  color: var(--ink-dim);
}

.signal-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  padding: 4px 10px;
  border: var(--hair) solid var(--signal);
  color: var(--signal);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-shadow: 0 0 6px var(--signal-soft), 0 0 14px var(--signal-soft);
}

.signal-pill::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--signal);
  box-shadow: 0 0 8px var(--signal);
  animation: sitePulse 2.4s ease-in-out infinite;
}

.signal-pill--small {
  font-size: 10px;
  padding: 3px 8px;
}

@keyframes sitePulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.42; }
}

.rule-dashed {
  border: 0;
  border-top: var(--hair) dashed var(--rule-dashed);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(260px, 0.8fr);
  gap: 48px;
  align-items: start;
  min-height: min(860px, calc(100svh - 170px));
  padding: 72px 0 60px;
}

.hero-copy {
  max-width: 760px;
}

.hero h1 {
  margin-top: 20px;
  font-size: clamp(44px, 7vw, 88px);
  font-weight: 400;
  line-height: 0.98;
  letter-spacing: -0.05em;
  max-width: 10.5ch;
}

.hero h1.hero-headline--extended {
  font-size: clamp(38px, 6vw, 74px);
  line-height: 0.94;
  max-width: none;
}

.hero-headline-line {
  display: block;
  white-space: nowrap;
}

.hero-headline-line + .hero-headline-line {
  margin-top: 0.04em;
}

.hero-headline-line--plain {
  font-size: 0.9em;
}

.hero-headline-line--sentence-start {
  margin-top: 0.22em;
}

.hero-headline-line--accent {
  font-size: 0.98em;
  color: var(--signal);
  font-weight: 700;
  letter-spacing: -0.045em;
}

.hero-marathons {
  position: relative;
  display: inline-block;
  isolation: isolate;
  --hero-glow-x: 50%;
  --hero-glow-y: 50%;
  color: color-mix(in srgb, var(--signal) 92%, white 8%);
  text-shadow: 0 0 22px rgba(92, 243, 248, 0.12);
}

.hero-marathons::after {
  content: attr(data-text);
  position: absolute;
  inset: 0;
  color: transparent;
  pointer-events: none;
  opacity: 0;
  background:
    radial-gradient(
      circle at var(--hero-glow-x) var(--hero-glow-y),
      rgba(98, 249, 255, 1) 0%,
      rgba(98, 249, 255, 0.82) 18%,
      rgba(98, 249, 255, 0.44) 38%,
      rgba(98, 249, 255, 0.12) 56%,
      rgba(98, 249, 255, 0) 68%
    );
  -webkit-background-clip: text;
  background-clip: text;
  filter: blur(10px);
  transform: translateZ(0);
  transition: opacity 180ms ease-out;
}

html[data-mode="dark"] .hero-marathons.is-hovering::after {
  opacity: 0.88;
}

html[data-mode="light"] .hero-marathons::after {
  display: none;
}

@media (hover: none), (pointer: coarse), (prefers-reduced-motion: reduce) {
  .hero-marathons::after {
    display: none;
  }
}

.hero .sub {
  margin-top: 26px;
  max-width: 58ch;
  color: var(--ink-dim);
  font-size: 15px;
  line-height: 1.72;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 16px;
  border: var(--hair) solid var(--rule);
  text-decoration: none;
  transition: border-color 0.18s ease, color 0.18s ease, background-color 0.18s ease, transform 0.18s ease;
}

.btn-primary {
  border-color: var(--signal);
  color: var(--signal);
  background: var(--signal-wash);
  text-shadow: 0 0 6px var(--signal-soft);
}

.btn-primary:hover,
.btn-secondary:hover {
  transform: translateY(-1px);
}

.btn-primary:hover {
  background: rgba(78, 224, 207, 0.14);
}

html:not([data-mode="dark"]) .btn-primary:hover {
  background: rgba(13, 107, 98, 0.14);
}

.btn-secondary {
  color: var(--ink);
  background: transparent;
}

.btn-secondary:hover {
  border-color: var(--signal);
  color: var(--signal);
}

.hero-install {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
  padding: 12px 14px;
  border: var(--hair) solid var(--rule);
  color: var(--ink-dim);
}

.hero-install code {
  color: var(--ink);
}

.hero-aside {
  display: flex;
  flex-direction: column;
  gap: 18px;
  align-self: start;
}

.bracket {
  position: relative;
  padding: 26px;
  background: var(--bg-elev);
  border: var(--hair) solid var(--rule);
}

.bracket::before,
.bracket::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border: var(--hair) solid var(--signal);
}

.bracket::before {
  top: -1px;
  left: -1px;
  border-right: 0;
  border-bottom: 0;
}

.bracket::after {
  right: -1px;
  bottom: -1px;
  border-left: 0;
  border-top: 0;
}

.bracket h2,
.bracket h3 {
  font-size: 18px;
  font-weight: 500;
  letter-spacing: -0.02em;
}

.bracket > .signal-pill--small + h2,
.bracket > .signal-pill--small + h3,
.bracket > .signal-pill--small + p {
  margin-top: 18px;
}

.hero-sheet p,
.hero-note p,
.origin-note p,
.cta-note p {
  color: var(--ink-dim);
  font-size: 13px;
  line-height: 1.7;
}

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

.sheet-row {
  display: grid;
  gap: 6px;
  padding-top: 12px;
  border-top: var(--hair) dashed var(--rule-dashed);
}

.sheet-row strong {
  color: var(--ink);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.status-row {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 28px;
  padding: 20px 0;
  border-top: var(--hair) solid var(--rule);
  border-bottom: var(--hair) solid var(--rule);
}

.status-item {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
}

.status-item .k {
  color: var(--ink-faint);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 10px;
}

.status-item .v {
  color: var(--ink);
}

.section {
  padding: 64px 0;
}

.section-head {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: baseline;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin-bottom: 6px;
}

.section-head .kicker {
  color: var(--ink);
}

.section-head .counter {
  color: var(--ink-faint);
  font-size: 10px;
}

.section-title {
  margin-top: 28px;
  margin-bottom: 18px;
  max-width: 18ch;
  margin-inline: auto;
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 1.08;
  text-wrap: balance;
}

.section-intro {
  max-width: var(--section-copy-width);
  margin-inline: auto;
  color: var(--ink-dim);
  font-size: 14px;
  line-height: 1.74;
}

.compare .section-title {
  text-align: center;
}

.compare .section-intro {
  width: var(--section-wide-copy-width);
  max-width: none;
  text-align: left;
  text-wrap: pretty;
}

.architecture-lead {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 430px);
  gap: 34px;
  align-items: start;
  margin-top: 28px;
  margin-bottom: 22px;
}

.architecture-lead .section-title {
  margin: 0;
  max-width: 15ch;
  margin-inline: 0;
  text-align: left;
}

.architecture-callout {
  width: 100%;
  justify-self: end;
}

.architecture-callout p {
  color: var(--ink-dim);
  font-size: 13px;
  line-height: 1.7;
}

.compare .section-intro + .section-intro {
  width: var(--section-wide-copy-width);
  margin-top: 10px;
}

.compare-tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  width: min(100%, var(--section-panel-width));
  margin: 28px auto 34px;
}

.compare-tab {
  padding: 9px 12px;
  border: var(--hair) solid var(--rule);
  color: var(--ink-dim);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  transition: border-color 0.18s ease, color 0.18s ease, background-color 0.18s ease;
}

.compare-tab:hover,
.compare-tab.active {
  border-color: var(--signal);
  color: var(--signal);
  background: var(--signal-wash);
}

.compare-tab.active {
  text-shadow: 0 0 6px var(--signal-soft);
}

.compare-panel {
  display: none;
  max-width: var(--section-panel-width);
  margin-inline: auto;
  animation: compareFade 0.28s ease;
}

.compare-panel.active {
  display: block;
}

@keyframes compareFade {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.compare-intro {
  width: 100%;
  max-width: none;
  margin-inline: auto;
  margin-bottom: 22px;
  color: var(--ink-dim);
  font-size: 14px;
  line-height: 1.74;
}

.compare-intro strong,
.compare-verdict strong,
.origin-copy strong,
.origin-copy a,
.flow-page-hero strong {
  color: var(--ink);
}

.compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: var(--hair) solid var(--rule);
}

.compare-col {
  padding: 28px;
  background: var(--bg-elev);
}

.compare-col + .compare-col {
  border-left: var(--hair) solid var(--rule);
}

.compare-col.us {
  background: linear-gradient(180deg, var(--bg-elev), var(--signal-wash));
}

.compare-col-label {
  padding-bottom: 14px;
  margin-bottom: 12px;
  border-bottom: var(--hair) solid var(--rule);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.compare-col.them .compare-col-label {
  color: var(--ink-faint);
}

.compare-col.us .compare-col-label {
  color: var(--signal);
}

.compare-row {
  padding: 12px 0;
  border-top: var(--hair) dashed var(--rule-dashed);
}

.compare-row:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.row-label {
  margin-bottom: 6px;
  color: var(--ink-faint);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.row-value {
  color: var(--ink-dim);
  font-size: 13px;
  line-height: 1.72;
}

.compare-col.us .row-value {
  color: var(--ink);
}

.compare-verdict {
  margin-top: 20px;
  padding: 18px 20px;
  border-left: 3px solid var(--signal);
  background: var(--signal-wash);
  color: var(--ink-dim);
  font-size: 13px;
  line-height: 1.72;
}

.origin-layout,
.cta-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(260px, 0.8fr);
  gap: 34px;
  align-items: start;
  margin-top: 28px;
}

.origin-copy {
  max-width: none;
}

.origin-copy p {
  max-width: none;
  font-size: 15px;
  line-height: 1.88;
  color: var(--ink-dim);
  text-wrap: pretty;
}

.origin-copy a,
.origin-note a {
  text-underline-offset: 4px;
  text-decoration-color: var(--signal-line);
}

.origin-note,
.cta-note {
  width: 100%;
}

.origin-note {
  max-width: none;
  justify-self: stretch;
  padding: 30px 32px 34px;
}

.origin-note p {
  max-width: none;
  margin-top: 18px;
}

.origin {
  padding-bottom: 28px;
}

.final-cta {
  padding-top: 36px;
}

.final-cta h2 {
  max-width: none;
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: -0.03em;
  white-space: nowrap;
}

.final-cta p {
  margin-top: 14px;
  max-width: 48ch;
  color: var(--ink-dim);
  font-size: 14px;
  line-height: 1.74;
}

.email-row {
  display: flex;
  gap: 10px;
  max-width: 520px;
  margin-top: 24px;
}

.email-row input {
  flex: 1;
  min-height: 46px;
  padding: 12px 14px;
  border: var(--hair) solid var(--rule);
  background: transparent;
  color: var(--ink);
}

.email-row input::placeholder {
  color: var(--ink-faint);
}

.email-row button {
  min-width: 138px;
  border: var(--hair) solid var(--signal);
  background: var(--signal-wash);
  color: var(--signal);
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-shadow: 0 0 6px var(--signal-soft);
}

.note {
  margin-top: 12px;
  color: var(--ink-faint);
  font-size: 11px;
  line-height: 1.7;
}

footer {
  border-top: var(--hair) solid var(--rule);
  padding: 32px 0;
  color: var(--ink-faint);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.footer-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
}

.footer-links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--ink-dim);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--ink);
}

.flow-main {
  padding-top: 24px;
}

.flow-page-hero {
  padding: 34px 0 24px;
  max-width: 58rem;
}

.flow-page-hero h1 {
  max-width: 13ch;
  font-size: clamp(38px, 6vw, 68px);
  font-weight: 400;
  line-height: 0.98;
  letter-spacing: -0.05em;
}

.flow-page-hero p {
  margin-top: 18px;
  max-width: 60ch;
  color: var(--ink-dim);
  font-size: 15px;
  line-height: 1.74;
}

@media (max-width: 980px) {
  .hero,
  .architecture-lead,
  .origin-layout,
  .cta-grid {
    grid-template-columns: 1fr;
  }

  .origin-note {
    max-width: none;
    justify-self: stretch;
  }

  .hero {
    min-height: auto;
    padding-top: 56px;
  }

  .hero h1,
  .section-title,
  .final-cta h2,
  .flow-page-hero h1 {
    max-width: none;
  }

  .final-cta h2 {
    white-space: normal;
  }

  .architecture-callout {
    justify-self: stretch;
  }
}

@media (max-width: 780px) {
  .page {
    width: min(var(--page-width), calc(100% - 28px));
  }

  .nav-shell {
    min-height: 70px;
    gap: 14px;
  }

  .nav-cluster {
    gap: 10px;
  }

  .nav-links {
    gap: 14px;
  }

  .nav-links a:not(.nav-link-signal) {
    display: none;
  }

  .mode-toggle {
    min-width: 72px;
  }

  .meta-strip {
    gap: 14px;
  }

  .hero {
    padding: 48px 0 42px;
    gap: 28px;
  }

  .hero-actions,
  .email-row {
    flex-direction: column;
  }

  .btn-primary,
  .btn-secondary,
  .email-row button,
  .email-row input {
    width: 100%;
  }

  .status-row {
    gap: 14px;
  }

  .section {
    padding: 48px 0;
  }

  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

  .compare-tabs {
    overflow-x: auto;
    flex-wrap: nowrap;
    justify-content: flex-start;
    width: auto;
    padding-bottom: 6px;
    scrollbar-width: none;
  }

  .compare-tabs::-webkit-scrollbar {
    display: none;
  }

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

  .compare-col + .compare-col {
    border-left: 0;
    border-top: var(--hair) solid var(--rule);
  }

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

  .footer-links {
    gap: 12px;
  }
}