:root {
  color-scheme: light;
  --scroll: 0;
  --surface: #ffffff;
  --surface-card: rgba(255, 255, 255, 0.9);
  --ink: #121717;
  --ink-soft: #3f4848;
  --muted: #6b7474;
  --line: rgba(11, 24, 24, 0.12);
  --accent: #00d4aa;
  --accent-strong: #009f85;
  --accent-soft: rgba(0, 212, 170, 0.14);
  --mono: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  --sans: "Saira", "Inter", "Segoe UI", system-ui, sans-serif;
  --shadow: 0 24px 80px rgba(11, 24, 24, 0.13);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  overflow-x: hidden;
  font-family: var(--sans);
  color: var(--ink);
  background:
    radial-gradient(circle at 10% 0%, rgba(0, 212, 170, 0.16), transparent 28rem),
    radial-gradient(circle at 100% 26%, rgba(0, 212, 170, 0.08), transparent 24rem),
    linear-gradient(180deg, #ffffff 0%, #f6faf9 48%, #ffffff 100%);
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.36;
  background-image:
    linear-gradient(rgba(0, 159, 133, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 159, 133, 0.08) 1px, transparent 1px);
  background-size: 4.5rem 4.5rem;
  background-position: calc(var(--scroll) * -4rem) calc(var(--scroll) * 8rem);
}
a { color: inherit; }
code { font-family: var(--mono); }
.skip-link {
  position: fixed;
  top: 0.65rem;
  left: 0.65rem;
  z-index: 200;
  padding: 0.7rem 0.9rem;
  border-radius: 0.55rem;
  background: #07100f;
  color: #d9fff7;
  font: 800 0.78rem/1 var(--mono);
  text-decoration: none;
  transform: translateY(-180%);
  transition: transform 120ms ease;
}
.skip-link:focus { transform: translateY(0); }
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 3px solid rgba(0, 159, 133, 0.62);
  outline-offset: 3px;
}
.scroll-progress {
  position: fixed;
  inset: 0 auto auto 0;
  z-index: 100;
  width: calc(var(--scroll) * 100%);
  height: 3px;
  background: linear-gradient(90deg, var(--accent), #111818);
  box-shadow: 0 0 24px rgba(0, 212, 170, 0.56);
}
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem clamp(1rem, 4vw, 3rem);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(18px);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 2.6rem;
  height: 2.6rem;
  border: 1px solid rgba(0, 212, 170, 0.42);
  border-radius: 0.9rem;
  background: #111818;
  color: var(--accent);
  font-weight: 800;
}
.brand-title,
.brand-subtitle,
.eyebrow,
.status-label,
.setup-grid span,
.protocol-map span {
  display: block;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.brand-title { font-size: 0.95rem; font-weight: 800; }
.brand-subtitle { color: var(--muted); font-size: 0.68rem; }
nav { display: flex; flex-wrap: wrap; gap: 0.35rem; }
nav a {
  padding: 0.55rem 0.75rem;
  border-radius: 999px;
  color: var(--ink-soft);
  font-size: 0.8rem;
  text-decoration: none;
}
nav a:hover,
nav a.is-active,
.nav-cta { background: var(--accent-soft); color: var(--ink); }
.hero {
  min-height: 74vh;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(20rem, 1.1fr);
  align-items: center;
  gap: clamp(1.5rem, 5vw, 5rem);
  padding: clamp(2rem, 5vw, 5rem);
}
.eyebrow {
  color: var(--accent-strong);
  font: 800 0.76rem/1.4 var(--mono);
  margin: 0 0 0.9rem;
}
h1, h2, h3, p { margin-top: 0; }
h1 {
  max-width: 12ch;
  font-size: clamp(3.1rem, 7vw, 7.3rem);
  line-height: 0.88;
  letter-spacing: -0.08em;
  margin-bottom: 1.4rem;
}
h2 {
  max-width: 18ch;
  font-size: clamp(2rem, 4vw, 4.4rem);
  line-height: 0.96;
  letter-spacing: -0.055em;
  margin-bottom: 1.2rem;
}
h3 { font-size: 1.18rem; letter-spacing: -0.02em; }
.lede,
.section p,
.status-heading p,
.status-card p {
  color: var(--ink-soft);
  font-size: 1.05rem;
  line-height: 1.65;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.9rem; margin-top: 2rem; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.82rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  text-decoration: none;
  font: 800 0.78rem/1 var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.button.primary {
  background: var(--ink);
  color: var(--accent);
  border-color: var(--ink);
  box-shadow: 0 20px 44px rgba(0, 212, 170, 0.22);
}
.button.secondary { background: rgba(255, 255, 255, 0.72); }
.time-orbit {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
  padding: clamp(1rem, 2vw, 1.4rem);
  border: 1px solid var(--line);
  border-radius: 2rem;
  background:
    radial-gradient(circle at 50% 16%, rgba(0, 212, 170, 0.2), transparent 16rem),
    rgba(255, 255, 255, 0.86);
  box-shadow: var(--shadow);
}
.time-orbit > * {
  display: grid;
  place-items: center;
  min-height: 6.5rem;
  border: 1px solid rgba(0, 212, 170, 0.2);
  border-radius: 1.1rem;
  background: rgba(255, 255, 255, 0.72);
  color: var(--ink-soft);
  font: 800 0.78rem/1.25 var(--mono);
  letter-spacing: 0.1em;
  text-align: center;
  text-transform: uppercase;
}
.time-orbit a {
  grid-template-columns: 3.4rem 1fr;
  gap: 0.7rem;
  text-decoration: none;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}
.time-orbit a:hover {
  transform: translateY(-3px);
  border-color: rgba(0, 212, 170, 0.36);
  box-shadow: 0 16px 44px rgba(11, 24, 24, 0.11);
}
.time-orbit a img {
  width: 3.4rem;
  height: 3.4rem;
  object-fit: cover;
  border-radius: 0.85rem;
}
.time-orbit a.orbit-ptp {
  grid-column: 1 / -1;
  grid-template-columns: 1fr;
  min-height: 5.6rem;
}
.time-orbit a.orbit-ptp span {
  justify-self: center;
}
.time-orbit .orbit-core {
  grid-column: 1 / -1;
  min-height: 9rem;
  background: #101818;
  color: var(--accent);
  font-size: clamp(1.1rem, 2vw, 1.55rem);
}
.status-panel,
.section {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto clamp(4rem, 8vw, 8rem);
  scroll-margin-top: 6.5rem;
}
.status-panel {
  padding: clamp(1rem, 2vw, 1.35rem);
  border: 1px solid var(--line);
  border-radius: 1.65rem;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 18px 60px rgba(11, 24, 24, 0.09);
}
.status-heading {
  display: grid;
  grid-template-columns: minmax(16rem, 0.85fr) minmax(22rem, 1.15fr);
  gap: clamp(1rem, 3vw, 2rem);
  align-items: start;
  padding: 0.5rem 0.5rem 1.2rem;
}
.status-heading h2 {
  max-width: 11ch;
  font-size: clamp(2.4rem, 3.6vw, 4.4rem);
  margin-bottom: 0;
}
.status-heading p:last-child {
  max-width: 42rem;
  margin-bottom: 0;
  justify-self: end;
}
.status-grid,
.setup-grid,
.protocol-map,
.verify-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}
.setup-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.platform-tabs {
  border: 1px solid var(--line);
  border-radius: 1.55rem;
  background:
    radial-gradient(circle at 8% 0%, rgba(0, 212, 170, 0.13), transparent 18rem),
    rgba(255, 255, 255, 0.88);
  box-shadow: 0 16px 54px rgba(11, 24, 24, 0.09);
  overflow: hidden;
}
.platform-tablist {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.55rem;
  padding: 0.75rem;
  border-bottom: 1px solid var(--line);
  background: rgba(246, 250, 249, 0.82);
}
.platform-tab {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  min-height: 3.9rem;
  padding: 0.55rem 0.7rem;
  border: 1px solid transparent;
  border-radius: 1rem;
  background: transparent;
  color: var(--ink-soft);
  cursor: pointer;
  font-family: var(--sans);
  transition: background 160ms ease, border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}
.platform-tab:hover {
  transform: translateY(-1px);
  border-color: rgba(0, 212, 170, 0.24);
  background: rgba(255, 255, 255, 0.72);
}
.platform-tab.is-active {
  border-color: rgba(0, 212, 170, 0.34);
  background: #fff;
  box-shadow: 0 12px 34px rgba(11, 24, 24, 0.09);
  color: var(--ink);
}
.platform-tab img {
  width: 2.25rem;
  height: 2.25rem;
  object-fit: cover;
  border-radius: 0.62rem;
  flex: none;
}
.tab-glyph,
.panel-glyph {
  display: grid;
  place-items: center;
  border: 1px solid rgba(0, 212, 170, 0.28);
  background: #101818;
  color: var(--accent);
  font: 900 0.7rem/1 var(--mono);
}
.tab-glyph {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 0.62rem;
}
.panel-glyph {
  width: 4rem;
  height: 4rem;
  border-radius: 1rem;
}
.platform-tab span,
.platform-panel span {
  display: block;
  color: var(--accent-strong);
  font: 900 0.78rem/1.25 var(--mono);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.platform-panel-shell {
  padding: clamp(1rem, 2.4vw, 1.65rem);
}
.platform-panel {
  scroll-margin-top: 7rem;
}
.platform-panel[hidden] {
  display: none;
}
.platform-panel-heading {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1rem;
  align-items: center;
  margin-bottom: 1.1rem;
}
.platform-panel-heading img {
  width: 4rem;
  height: 4rem;
  object-fit: cover;
  border-radius: 1rem;
  box-shadow: 0 10px 28px rgba(11, 24, 24, 0.12);
}
.platform-panel h3 {
  max-width: 52rem;
  font-size: clamp(1.45rem, 2.5vw, 2.2rem);
  line-height: 1.05;
  margin: 0.35rem 0 0;
}
.platform-panel h4 {
  margin: 1.2rem 0 0.5rem;
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.platform-panel pre {
  margin-top: 0.5rem;
  padding: 0.85rem;
  border-radius: 0.9rem;
  background: #101818;
  color: #ccfff5;
  overflow: auto;
}
.status-card,
.setup-grid > article,
.protocol-map > div,
.verify-grid > article,
.terminal-card {
  border: 1px solid var(--line);
  border-radius: 1.35rem;
  background: var(--surface-card);
  box-shadow: 0 12px 42px rgba(11, 24, 24, 0.08);
}
.status-card,
.setup-grid > article,
.protocol-map > div,
.verify-grid > article {
  padding: 1.2rem;
}
.status-label,
.setup-grid span,
.protocol-map span {
  color: var(--accent-strong);
  font: 800 0.68rem/1.4 var(--mono);
}
.status-card strong {
  display: block;
  margin: 0.7rem 0 0.75rem;
  font: 900 clamp(2.4rem, 4vw, 4.2rem)/0.86 var(--sans);
  letter-spacing: -0.08em;
}
.status-card .host-value {
  font-size: clamp(2rem, 3.2vw, 3.2rem);
}
.section-heading { margin-bottom: 1.8rem; }
.section-heading p { max-width: 62rem; }
.split {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(20rem, 1.14fr);
  gap: 1.4rem;
  align-items: center;
}
.terminal-card {
  position: relative;
  background: #101818;
  color: #ccfff5;
  overflow: auto;
  padding: 1.2rem;
}
pre {
  margin: 0;
  white-space: pre-wrap;
  font: 500 0.86rem/1.6 var(--mono);
}
.setup-grid pre {
  margin-top: 1rem;
  padding: 0.85rem;
  border-radius: 0.9rem;
  background: #101818;
  color: #ccfff5;
  overflow: auto;
}
.copy-button {
  position: absolute;
  top: 0.8rem;
  right: 0.8rem;
  border: 1px solid rgba(0, 212, 170, 0.36);
  border-radius: 999px;
  background: rgba(0, 212, 170, 0.12);
  color: #ccfff5;
  padding: 0.45rem 0.7rem;
  font: 800 0.68rem/1 var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
}
.verify-grid code {
  display: block;
  margin: 0.45rem 0;
  padding: 0.55rem 0.65rem;
  border-radius: 0.6rem;
  background: #f6f8f8;
  color: var(--ink-soft);
}
.reveal-item {
  opacity: 0;
  transform: translate3d(0, 1.5rem, 0);
  transition: opacity 620ms ease, transform 620ms cubic-bezier(0.2, 0.8, 0.2, 1);
  transition-delay: calc(var(--reveal-order, 0) * 70ms);
}
.reveal-item.is-visible {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}
@media (max-width: 1040px) {
  .topbar { align-items: flex-start; flex-direction: column; }
  .hero,
  .split,
  .status-heading,
  .status-grid,
  .protocol-map,
  .verify-grid {
    grid-template-columns: 1fr;
  }
  .setup-grid {
    grid-template-columns: 1fr;
  }
  .platform-tablist {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .platform-tab {
    justify-content: flex-start;
  }
  .time-orbit {
    grid-template-columns: 1fr;
  }
  .time-orbit .orbit-core {
    grid-column: auto;
  }
  h1 { font-size: clamp(3rem, 15vw, 5rem); }
}
@media (max-width: 640px) {
  .platform-tablist {
    grid-template-columns: 1fr;
  }
  .platform-panel-heading {
    grid-template-columns: 1fr;
  }
  .platform-panel-heading img,
  .panel-glyph {
    width: 3.25rem;
    height: 3.25rem;
  }
}
@media print {
  .topbar,
  .scroll-progress,
  .hero-actions,
  .copy-button { display: none; }
  body { background: #fff; }
  .section,
  .status-panel { break-inside: avoid; }
}
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }
  .reveal-item {
    opacity: 1;
    transform: none;
  }
}