/* Satori product shell: one visual system for landing, architecture, and docs. */
:root {
  --bg: #030305;
  --panel: rgba(10, 10, 10, 0.82);
  --panel-raised: rgba(15, 15, 18, 0.94);
  --panel-soft: rgba(255, 255, 255, 0.022);
  --fg: #ffffff;
  --muted: rgba(255, 255, 255, 0.62);
  --muted-soft: rgba(255, 255, 255, 0.54);
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.18);
  --accent: #dfff00;
  --accent-dim: rgba(223, 255, 0, 0.12);
  --cyan: #5cc8ff;
  --cyan-dim: rgba(92, 200, 255, 0.12);
  --violet: #b48eff;
  --pink: #ff5577;
  --warm: #ffaa00;
  --serif: "Bricolage Grotesque", system-ui, sans-serif;
  --sans: "IBM Plex Sans", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --shell: 1240px;
  --content: 1080px;
  --radius-lg: 2px;
  --radius-md: 0px;
  --radius-sm: 0px;
  --shadow-soft: 0 10px 42px rgba(0, 0, 0, 0.38);
}

html {
  scroll-padding-top: 6.5rem;
  background: var(--bg);
}

section[id] {
  scroll-margin-top: 6.5rem;
}

body {
  color: var(--fg);
  font-family: var(--sans);
  background-color: var(--bg);
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(223, 255, 0, 0.04) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 20% 100%, rgba(180, 142, 255, 0.035) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 80%, rgba(92, 200, 255, 0.03) 0%, transparent 60%),
    linear-gradient(180deg, #08080c 0%, #050507 40%, #030305 100%);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -3;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.56), transparent 80%);
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background: radial-gradient(ellipse 100% 74% at 50% 44%, transparent 42%, rgba(0, 0, 0, 0.42) 100%);
}

::selection {
  background: var(--accent);
  color: #060607;
}

.ambient-wisp {
  display: none;
}

.page-landing .grain-overlay {
  display: block;
  opacity: 0.025;
}

.bg-accents,
.bg-grid {
  opacity: 0.25;
}

.ambient-energy {
  opacity: 0.24;
  filter: blur(74px);
  animation: none;
}

.container {
  position: relative;
  z-index: 1;
  width: min(100%, var(--shell));
  max-width: var(--shell);
  margin: 0 auto;
  padding: 1rem 1rem 4rem;
}

.skip-link {
  border-radius: var(--radius-sm);
}

a {
  text-underline-offset: 0.18em;
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

/* Shared product chrome */
nav[aria-label="Primary"] {
  top: 0.75rem;
  min-height: 64px;
  padding: 0.55rem 0.7rem 0.55rem 0.85rem;
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: 0;
  background: rgba(10, 10, 10, 0.74);
  backdrop-filter: blur(16px);
  box-shadow: 0 4px 24px -2px rgba(0, 0, 0, 0.5);
}

.nav-brand {
  gap: 0.7rem;
  color: rgba(255, 255, 255, 0.90);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-decoration: none;
}

.nav-brand:hover {
  color: var(--fg);
}

.nav-brand-logo {
  width: 32px;
  height: 33px;
}

.nav-links {
  gap: 0.25rem;
}

.nav-links a {
  min-height: 44px;
  padding: 0.62rem 0.78rem;
  border: 1px solid transparent;
  border-radius: 0;
  color: rgba(255, 255, 255, 0.68);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.09em;
  transition: color 160ms ease, border-color 160ms ease, background 160ms ease;
}

.nav-links a:hover {
  color: var(--fg);
  border-color: rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.035);
}

.nav-links a.cta-contact {
  color: #060607;
  background: var(--accent);
  border-color: var(--accent);
  font-weight: 600;
}

.nav-links a.cta-contact:hover {
  color: #060607;
  background: #e9ff55;
  box-shadow: 0 0 20px var(--accent-dim);
}

.status-dot {
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(223, 255, 0, 0.08);
  animation: none;
}

/* Buttons */
.btn,
.contact-subject,
.copy-btn {
  min-height: 44px;
  border-radius: 0;
  font-family: var(--mono);
  font-weight: 500;
}

.btn {
  min-height: 44px;
  padding: 0.76rem 1.05rem;
  border-color: var(--line-strong);
  color: rgba(255, 255, 255, 0.78);
  letter-spacing: 0.1em;
  background: rgba(255, 255, 255, 0.022);
  transition: border-color 160ms ease, background 160ms ease, color 160ms ease, transform 160ms ease;
}

.btn:hover {
  border-color: rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.055);
  color: var(--fg);
  box-shadow: none;
  transform: translateY(-1px);
}

.btn.primary {
  color: #060607;
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 20px rgba(223, 255, 0, 0.08);
}

.btn.primary:hover {
  color: #060607;
  background: #e9ff55;
  border-color: #e9ff55;
  box-shadow: 0 0 24px rgba(223, 255, 0, 0.14);
}

/* Shared hero */
.hero {
  margin-top: 1rem;
  padding: clamp(3.4rem, 6vw, 5.8rem) clamp(2rem, 5vw, 4.7rem);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-top-color: rgba(255, 255, 255, 0.13);
  border-radius: 0;
  background:
    radial-gradient(circle at 92% 4%, rgba(92, 200, 255, 0.055), transparent 28%),
    linear-gradient(160deg, rgba(20, 20, 24, 0.62) 0%, rgba(5, 5, 8, 0.78) 100%);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(12px);
  overflow: hidden;
  text-align: left;
  align-items: flex-start;
  position: relative;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(90deg, transparent 0%, rgba(223, 255, 0, 0.018) 48%, transparent 100%);
  opacity: 0.65;
}

.hero h1,
h1 {
  max-width: 100%;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(4rem, 7.4vw, 7.2rem);
  font-weight: 620;
  font-stretch: 100%;
  line-height: 0.9;
  letter-spacing: -0.032em;
  color: var(--fg);
  background: none;
  -webkit-background-clip: initial;
  background-clip: initial;
  -webkit-text-fill-color: initial;
}

.hero h2 {
  max-width: 760px;
  margin-top: 1.35rem;
  font-family: var(--sans);
  font-size: clamp(1.35rem, 2.3vw, 2.05rem);
  font-weight: 500;
  line-height: 1.16;
  letter-spacing: -0.024em;
  color: var(--fg);
}

.hero p,
.hero-copy {
  max-width: 760px;
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: 1.03rem;
  font-weight: 300;
  line-height: 1.67;
}

.hero-eyebrow,
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0 0 1rem;
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-eyebrow::before,
.eyebrow::before {
  content: "";
  width: 1.7rem;
  height: 1px;
  background: currentColor;
  opacity: 0.7;
}

.hero-logo {
  height: 0.77em;
  width: auto;
  margin-right: 0.16em;
  transform: translateY(-0.015em);
}

.trust-chips {
  width: 100%;
  max-width: none;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.55rem;
  margin-top: 2rem;
}

.trust-chip {
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.58rem 0.72rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 0;
  background: rgba(255, 255, 255, 0.022);
  color: rgba(255, 255, 255, 0.64);
  font-family: var(--mono);
  font-size: 0.70rem;
  font-weight: 500;
  letter-spacing: 0.075em;
  line-height: 1.35;
  text-align: center;
}

/* Landing thesis + signature Publication Rail */
.landing-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(390px, 0.86fr);
  gap: 2.4rem 3.4rem;
  align-items: start;
}

.hero-copy-block,
.hero-product-block {
  min-width: 0;
  position: relative;
  z-index: 1;
}

.hero-copy-block {
  padding-top: 0.25rem;
}

.hero-copy-block h1 {
  display: flex;
  align-items: center;
  font-size: clamp(4.6rem, 7.4vw, 7.4rem);
}

.hero-copy-block .hero-lede {
  margin-top: 1.45rem;
  color: rgba(255, 255, 255, 0.82);
  font-size: 1.08rem;
  font-weight: 400;
  line-height: 1.6;
}

.hero-product-block {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.publication-rail {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(92, 200, 255, 0.24);
  border-radius: 0;
  background:
    radial-gradient(circle at 0 0, rgba(92, 200, 255, 0.075), transparent 42%),
    linear-gradient(180deg, rgba(14, 14, 18, 0.96), rgba(5, 5, 8, 0.96));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.035), 0 0 24px rgba(92, 200, 255, 0.035);
}

.publication-rail::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(90deg, transparent, rgba(92, 200, 255, 0.045), transparent);
  transform: translateX(-100%);
  animation: rail-scan 7s ease-in-out infinite;
}

.rail-heading,
.rail-caption {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.78rem 0.9rem;
  font-family: var(--mono);
}

.rail-heading {
  border-bottom: 1px solid var(--line);
  color: var(--cyan);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.rail-heading span:last-child {
  color: var(--muted-soft);
  font-size: 0.70rem;
  letter-spacing: 0.06em;
}

.rail-path {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  padding: 1.2rem 0.65rem 1rem;
}

.rail-path::before {
  content: "";
  position: absolute;
  left: 10%;
  right: 10%;
  top: calc(1.2rem - 0.5px);
  height: 1px;
  background: linear-gradient(90deg, rgba(92, 200, 255, 0.24), rgba(223, 255, 0, 0.58), rgba(92, 200, 255, 0.24));
}

.rail-node {
  position: relative;
  z-index: 1;
  min-width: 0;
  padding-top: 1rem;
  text-align: center;
}

.rail-node::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  width: 10px;
  height: 10px;
  border: 2px solid rgba(92, 200, 255, 0.72);
  border-radius: 50%;
  background: #0a0a0d;
  box-shadow: 0 0 0 1px rgba(92, 200, 255, 0.16);
  transform: translate(-50%, -50%);
  animation: rail-node-cycle 7.5s ease-in-out infinite;
}

.rail-node:nth-child(1)::before { animation-delay: 0s; }
.rail-node:nth-child(2)::before { animation-delay: 1.5s; }
.rail-node:nth-child(3)::before { animation-delay: 3s; }
.rail-node:nth-child(4)::before { animation-delay: 4.5s; }
.rail-node:nth-child(5)::before { animation-delay: 6s; }


.rail-node span,
.rail-node small {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
}

.rail-node span {
  color: var(--fg);
  font-family: var(--mono);
  font-size: 0.70rem;
  font-weight: 500;
  letter-spacing: 0.04em;
}

.rail-node small {
  margin-top: 0.16rem;
  color: var(--muted-soft);
  font-family: var(--sans);
  font-size: 0.70rem;
  line-height: 1.35;
}

.rail-caption {
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--sans);
  font-size: 0.76rem;
  line-height: 1.45;
}

.rail-live {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.70rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.rail-live i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(223, 255, 0, 0.08);
}

@keyframes rail-node-cycle {
  0%, 12% {
    border-color: var(--accent);
    background: rgba(223, 255, 0, 0.10);
    box-shadow:
      0 0 0 1px rgba(223, 255, 0, 0.42),
      0 0 0 4px rgba(223, 255, 0, 0.045),
      0 0 10px rgba(223, 255, 0, 0.12);
  }
  18%, 100% {
    border-color: rgba(92, 200, 255, 0.72);
    background: #0a0a0d;
    box-shadow: 0 0 0 1px rgba(92, 200, 255, 0.16);
  }
}

@keyframes rail-scan {
  0%, 60% { transform: translateX(-100%); opacity: 0; }
  72% { opacity: 1; }
  100% { transform: translateX(100%); opacity: 0; }
}

.hero-terminal {
  width: 100%;
  margin: 0;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 0;
  overflow: hidden;
  background: rgba(4, 4, 7, 0.86);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.018);
}

.terminal-label {
  padding: 0.72rem 0.85rem;
  border-bottom-color: var(--line);
  color: var(--accent);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
}

.copy-btn {
  min-height: 44px;
  padding: 0.3rem 0.55rem;
  border-color: var(--line-strong);
  color: var(--accent);
  font-size: 0.70rem;
}

.hero-terminal pre {
  padding: 0.9rem;
  border: 0;
  background: transparent;
  font-size: 0.80rem;
  line-height: 1.6;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.hero-actions {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem;
  margin-top: 0;
}

.hero-actions .btn {
  width: 100%;
  justify-content: center;
}

.hero-social {
  justify-content: flex-start;
  margin-top: 0;
}

.product-hunt-link {
  display: inline-grid;
  grid-template-columns: 2rem auto auto;
  align-items: center;
  gap: 0.65rem;
  min-height: 44px;
  padding: 0.48rem 0.72rem;
  border: 1px solid var(--line-strong);
  border-radius: 0;
  background: rgba(255, 255, 255, 0.022);
  color: var(--fg);
  text-decoration: none;
}

.product-hunt-link:hover {
  border-color: rgba(92, 200, 255, 0.52);
  background: rgba(92, 200, 255, 0.045);
}

.product-hunt-mark {
  display: grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 0;
  font-family: var(--sans);
  font-weight: 600;
}

.product-hunt-copy {
  display: grid;
  gap: 0.04rem;
  font-family: var(--sans);
  font-size: 0.88rem;
  font-weight: 500;
  line-height: 1.2;
}

.product-hunt-copy small {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.70rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.product-hunt-arrow {
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 0.9rem;
}

.landing-hero > .trust-chips {
  grid-column: 1 / -1;
  margin-top: 0.15rem;
}

/* Section rhythm: original Satori glass + current spacing. */
.section {
  margin-top: 1rem;
  padding: clamp(4.2rem, 6vw, 6rem) clamp(1.25rem, 3vw, 2.25rem);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-left: 2px solid var(--section-accent-dim, var(--accent-dim));
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.015) 0%, rgba(0, 0, 0, 0.20) 100%);
  backdrop-filter: blur(8px);
  transition: border-color 180ms ease, border-left-color 180ms ease;
}

.section:hover {
  border-color: rgba(255, 255, 255, 0.10);
  border-left-color: var(--section-accent, var(--accent));
}

.page-landing .section > h3,
.page-architecture .section > h2,
.page-docs .section > h2 {
  max-width: 820px;
  margin: 0 0 1rem;
  color: var(--fg);
  font-family: var(--serif);
  font-size: clamp(2.4rem, 4.2vw, 4.15rem);
  font-weight: 560;
  font-stretch: 100%;
  line-height: 1;
  letter-spacing: -0.028em;
  text-transform: none;
}

.section-intro,
.intro,
.lede {
  max-width: 760px;
  margin-bottom: 2rem;
  color: var(--muted);
  font-family: var(--sans);
  font-size: 1.02rem;
  font-weight: 300;
  line-height: 1.7;
}

.section-intro + .section-intro {
  margin-top: -1rem;
}

.section-followup {
  max-width: 820px;
  margin-top: 1.4rem;
  color: var(--muted);
}

.flow-recovery-note {
  margin-top: 2rem;
}

/* Index-sheet cards */
.grid,
.grid-2,
.grid-3,
.grid-4,
.tool-grid,
.config-grid,
.contact-grid {
  gap: 1rem;
}

.card,
.panel,
.tool-card,
.config-card,
.contact-card,
.runtime-card {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.020) 0%, rgba(0, 0, 0, 0.15) 100%);
  box-shadow: none;
  transition: border-color 180ms ease, background 180ms ease;
}

.card::before,
.panel::before,
.tool-card::before,
.config-card::before,
.contact-card::before,
.runtime-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: auto;
  width: 100%;
  height: 1px;
  background: var(--section-accent, var(--accent));
  opacity: 1;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 220ms ease;
}

.card::after,
.panel::after,
.tool-card::after {
  display: none;
}

.card:hover,
.panel:hover,
.tool-card:hover,
.config-card:hover,
.contact-card:hover {
  border-color: rgba(255, 255, 255, 0.12);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.035) 0%, rgba(0, 0, 0, 0.20) 100%);
}

.card:hover::before,
.panel:hover::before,
.tool-card:hover::before,
.config-card:hover::before,
.contact-card:hover::before,
.runtime-card:hover::before {
  transform: scaleX(1);
}

.card,
.panel {
  padding: 1.5rem;
}

.card h4,
.card h3,
.panel h3,
.tool-card h3,
.tool-group-title,
.install-title,
.step strong,
.flow-step strong {
  color: var(--section-accent, var(--accent));
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  line-height: 1.45;
  text-transform: uppercase;
}

.card p,
.card li,
.panel p,
.panel li,
.tool-card p,
.step p,
.flow-step p {
  color: var(--muted);
  font-family: var(--sans);
  font-size: 0.98rem;
  font-weight: 300;
  line-height: 1.64;
}

.goal-strip {
  gap: 0.7rem;
  margin-bottom: 1.6rem;
}

.goal-strip span {
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 0;
  background: rgba(255, 255, 255, 0.020);
  padding: 0.9rem 1rem;
}

.goal-strip strong {
  color: var(--accent);
  font-family: var(--mono);
}

.flow-strip {
  gap: 1px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(255, 255, 255, 0.06);
}

.flow-item {
  min-height: 0;
  padding: 1.35rem;
  border: 0;
  border-radius: 0;
  background: linear-gradient(180deg, rgba(20, 20, 24, 0.50) 0%, rgba(5, 5, 8, 0.52) 100%);
}

.flow-item:hover {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04) 0%, rgba(5, 5, 8, 0.56) 100%);
}

.flow-index {
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 0.70rem;
  font-weight: 500;
}

.flow-item strong {
  font-family: var(--serif);
  font-size: 1.35rem;
  font-weight: 560;
  letter-spacing: -0.025em;
  line-height: 1.08;
}

.flow-item p {
  color: var(--muted);
}

.install-strip {
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 0;
  background: linear-gradient(180deg, rgba(20, 20, 24, 0.46) 0%, rgba(5, 5, 8, 0.58) 100%);
  backdrop-filter: blur(8px);
}

.install-strip:hover {
  border: 1px solid var(--line-strong);
}

.install-top {
  border-bottom-color: var(--line);
}

.install-note {
  color: var(--muted);
}

/* Technical content */
code {
  color: rgba(255, 255, 255, 0.92);
  font-family: var(--mono);
  background: rgba(255, 255, 255, 0.055);
  border-color: var(--line);
  border-radius: 0;
}

pre {
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 0;
  background: rgba(3, 3, 5, 0.80);
  color: rgba(255, 255, 255, 0.72);
  box-shadow: inset 0 2px 14px rgba(0, 0, 0, 0.45);
}

pre code,
.hero-terminal pre code {
  padding: 0;
  border: 0;
  background: transparent;
}

.table-wrap,
.diagram-wrap {
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: 0;
  background: rgba(8, 8, 10, 0.62);
  backdrop-filter: blur(10px);
  overflow: auto;
}

th,
td {
  border-bottom-color: var(--line);
}

th {
  color: var(--section-accent, var(--cyan));
  background: rgba(255, 255, 255, 0.025);
}

.pipeline-line {
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 0;
  background: rgba(255, 255, 255, 0.022);
  color: var(--section-accent, var(--cyan));
}

.step {
  border-left-color: var(--line-strong);
}

.step:hover {
  border-left-color: var(--section-accent, var(--accent));
}

.flow-step {
  border-left-color: var(--section-accent, var(--cyan));
}

details {
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 0;
  background: rgba(255, 255, 255, 0.020);
  backdrop-filter: blur(6px);
}

details:hover,
details[open] {
  border-color: var(--line-strong);
}

summary {
  color: var(--section-accent, var(--accent));
}

.details-body {
  border-top-color: var(--line);
}

.callout {
  border-radius: 0;
  background: rgba(255, 255, 255, 0.025);
}

/* Architecture */
.page-architecture .hero {
  min-height: 450px;
  justify-content: flex-end;
}

.page-architecture .hero h1 {
  max-width: 980px;
  font-size: clamp(3.8rem, 6.4vw, 6.5rem);
}

.page-architecture .hero p {
  max-width: 860px;
  font-size: 1.08rem;
}

.page-architecture .hero .trust-chips {
  max-width: 1000px;
}

.page-architecture .grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.page-architecture .grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

.page-architecture .diagram-wrap {
  padding: 1.4rem;
}

.page-architecture .tool-card {
  min-height: 0;
  padding: 1.15rem;
}

.arch-mobile-diagram {
  display: none;
}

/* Docs */
.page-docs .hero {
  padding-bottom: 3.2rem;
}

.page-docs .hero h1 {
  max-width: 900px;
  font-size: clamp(4rem, 6.8vw, 6.7rem);
}

.page-docs .hero-copy {
  max-width: 860px;
  color: rgba(255, 255, 255, 0.76);
  font-size: 1.08rem;
}

.page-docs .quick-links {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.55rem;
  margin-top: 2rem;
  padding: 0;
  position: static;
  top: auto;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
  text-transform: none;
  letter-spacing: normal;
  font-size: inherit;
}

.page-docs .quick-links a {
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.55rem 0.68rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 0;
  background: rgba(255, 255, 255, 0.020);
  color: rgba(255, 255, 255, 0.64);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.075em;
  text-align: center;
}

.page-docs .quick-links a:hover {
  border-color: rgba(92, 200, 255, 0.34);
  background: rgba(92, 200, 255, 0.045);
  color: var(--cyan);
}


.page-docs .section > p,
.page-docs .section > ul,
.page-docs .section > ol {
  max-width: 78ch;
}

.page-docs .tool-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.page-docs .tool-card {
  min-height: 0;
  padding: 1.2rem;
}

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

/* Contact */
.contact-grid {
  grid-template-columns: 1.2fr 0.8fr;
}

.contact-card {
  padding: 1.5rem;
}

.contact-email {
  border-color: var(--line-strong);
  border-radius: 0;
  background: rgba(3, 3, 5, 0.68);
}

.contact-subject {
  border-color: var(--line);
  color: rgba(255, 255, 255, 0.70);
}

.contact-subject:hover {
  border-color: rgba(92, 200, 255, 0.38);
  color: var(--cyan);
  background: var(--cyan-dim);
}

/* Footer: same visual contract on every page. */
.footer {
  margin-top: 1rem;
  padding: 2.6rem 2rem;
  gap: 2rem;
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.014), rgba(0, 0, 0, 0.22));
}

.footer-heading {
  margin: 0 0 0.55rem;
  color: var(--fg);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.footer-brand-home {
  display: inline-flex;
  width: fit-content;
  min-height: 44px;
  align-items: center;
  gap: 0.7rem;
  color: var(--fg);
  text-decoration: none;
}

.footer-brand-home .footer-heading {
  margin: 0;
}

.footer-brand-home:hover .footer-heading {
  color: var(--accent);
}

.footer-col a,
.footer-col p {
  color: var(--muted);
}

.footer-col a {
  display: inline-flex;
  width: fit-content;
  min-height: 44px;
  align-items: center;
}

.footer-col a:hover {
  color: var(--cyan);
}

.footer-bottom {
  border-top-color: var(--line);
  color: var(--muted-soft);
}

.back-to-top {
  right: 1.25rem;
  bottom: 1.25rem;
  border: 1px solid var(--line-strong);
  border-radius: 0;
  background: rgba(6, 6, 8, 0.92);
  color: var(--accent);
  backdrop-filter: blur(14px);
}


/* Small desktop / tablet: avoid narrow four-column cards. */
@media (max-width: 1100px) and (min-width: 861px) {
  .container {
    width: 100%;
    max-width: none;
    padding-inline: 1rem;
  }

  .landing-hero {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .hero-product-block {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.9rem;
  }

  .hero-product-block .hero-actions,
  .hero-product-block .hero-social {
    grid-column: 1 / -1;
  }

  .goal-strip,
  .flow-strip,
  .page-architecture .grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-docs .tool-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-docs .quick-links {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

/* Mobile */
@media (max-width: 860px) {
  html {
    scroll-padding-top: 7.1rem;
  }

  section[id] {
    scroll-margin-top: 7.1rem;
  }

  body {
    font-size: 16px;
    background:
      radial-gradient(circle at 50% -8%, rgba(223, 255, 0, 0.045), transparent 22rem),
      radial-gradient(circle at 100% 42%, rgba(92, 200, 255, 0.025), transparent 20rem),
      linear-gradient(180deg, #08080c, #050507 48%, #030305);
  }

  body::before {
    background-size: 42px 42px;
    opacity: 0.65;
  }

  .bg-accents,
  .bg-grid,
  .ambient-energy {
    opacity: 0.12;
  }

  .container {
    width: 100%;
    max-width: none;
    padding: 0.75rem 0.75rem 2.5rem;
  }

  nav[aria-label="Primary"] {
    top: 0.5rem;
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    align-items: stretch;
    gap: 0.55rem;
    padding: 0.6rem;
    border-radius: 0;
    background: rgba(8, 8, 10, 0.96);
    backdrop-filter: blur(12px);
  }

  .nav-brand {
    min-height: 36px;
    justify-content: flex-start;
    gap: 0.55rem;
    padding: 0 0.25rem;
    font-size: 0.7rem;
  }

  .nav-brand-logo {
    width: 28px;
    height: 29px;
  }

  .nav-links {
    width: 100%;
    display: flex;
    flex-wrap: nowrap;
    justify-content: flex-start;
    gap: 0.3rem;
    overflow-x: auto;
    overflow-y: hidden;
    overscroll-behavior-x: contain;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 0.05rem;
  }

  .nav-links::-webkit-scrollbar,
  .quick-links::-webkit-scrollbar,
  .trust-chips::-webkit-scrollbar {
    display: none;
  }

  .nav-links a {
    flex: 0 0 auto;
    min-height: 44px;
    padding: 0.48rem 0.60rem;
    font-size: 0.69rem;
  }

  .hero {
    margin-top: 0.75rem;
    padding: 2.6rem 1.25rem 2.15rem;
    border-radius: 0;
    text-align: left;
    align-items: stretch;
  }

  .hero h1,
  h1 {
    font-size: clamp(2.9rem, 14vw, 4.4rem);
    line-height: 0.92;
  }

  .hero h2 {
    margin-top: 1.15rem;
    font-size: 1.22rem;
    line-height: 1.28;
  }

  .hero p,
  .hero-copy {
    max-width: none;
    margin-left: 0;
    margin-right: 0;
    font-size: 0.97rem;
    line-height: 1.6;
    text-align: left;
  }

  .hero-eyebrow,
  .eyebrow {
    margin-bottom: 0.8rem;
    font-size: 0.66rem;
  }

  .landing-hero {
    display: block;
  }

  .hero-copy-block h1 {
    font-size: clamp(3.25rem, 16vw, 4.65rem);
  }

  .hero-copy-block .hero-lede {
    font-size: 1rem;
  }

  .hero-product-block {
    display: flex;
    margin-top: 1.6rem;
  }

  .rail-heading,
  .rail-caption {
    gap: 0.65rem;
    padding: 0.68rem 0.72rem;
  }

  .rail-heading {
    font-size: 0.69rem;
  }

  .rail-heading span:last-child {
    font-size: 0.66rem;
  }

  .rail-path {
    padding-inline: 0.4rem;
  }

  .rail-node span {
    font-size: 0.69rem;
  }

  .rail-node small {
    font-size: 0.66rem;
  }

  .rail-caption {
    align-items: flex-start;
    font-size: 0.7rem;
  }

  .hero-terminal {
    width: 100%;
  }

  .terminal-label {
    gap: 0.65rem;
    padding: 0.65rem 0.72rem;
    font-size: 0.69rem;
  }

  .hero-actions {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.6rem;
  }

  .hero-actions .btn {
    min-width: 0;
    padding-inline: 0.75rem;
    white-space: normal;
    text-align: center;
  }

  .hero-social {
    justify-content: flex-start;
  }

  .trust-chips,
  .landing-hero > .trust-chips {
    width: 100%;
    display: flex;
    flex-wrap: nowrap;
    justify-content: flex-start;
    gap: 0.45rem;
    margin-top: 1.2rem;
    padding-bottom: 0.15rem;
    overflow-x: auto;
    overflow-y: hidden;
    overscroll-behavior-x: contain;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .trust-chip {
    flex: 0 0 auto;
    min-height: 40px;
    padding: 0.45rem 0.58rem;
    font-size: 0.69rem;
  }

  .page-docs .quick-links {
    width: 100%;
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    justify-content: flex-start;
    align-items: center;
    gap: 0.4rem;
    margin-top: 1.35rem;
    padding: 0 0 0.2rem;
    position: static;
    top: auto;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    backdrop-filter: none;
    overflow-x: auto;
    overflow-y: hidden;
    overscroll-behavior-x: contain;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .page-docs .quick-links a {
    flex: 0 0 auto;
    min-height: 44px;
    padding: 0.48rem 0.65rem;
    font-size: 0.69rem;
  }

  .section {
    padding: 3rem 1.15rem;
  }

  .page-landing .section > h3,
  .page-architecture .section > h2,
  .page-docs .section > h2 {
    font-size: clamp(2rem, 10vw, 2.8rem);
    line-height: 1;
  }

  .section-intro,
  .intro,
  .lede {
    max-width: none;
    margin-bottom: 1.45rem;
    font-size: 0.97rem;
    line-height: 1.62;
  }

  .section-intro + .section-intro {
    margin-top: -0.55rem;
  }

  .grid,
  .grid-2,
  .grid-3,
  .grid-4,
  .tool-grid,
  .config-grid,
  .contact-grid,
  .flow-strip,
  .goal-strip,
  .page-architecture .grid-4,
  .page-architecture .grid-3,
  .page-architecture .grid-2,
  .page-docs .grid,
  .page-docs .tool-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 0.75rem;
  }

  .card,
  .panel,
  .contact-card,
  .config-card,
  .tool-card {
    padding: 1.05rem;
    border-radius: 0;
  }

  .card p,
  .card li,
  .panel p,
  .panel li,
  .tool-card p,
  .flow-step p,
  .step p {
    font-size: 0.98rem;
    line-height: 1.62;
  }

  .goal-strip {
    margin-bottom: 1.4rem;
  }

  .flow-item {
    padding: 1.1rem;
    border-radius: 0;
  }

  .install-strip {
    padding: 1.25rem 1.05rem;
    gap: 1rem;
    border-radius: 0;
  }

  .install-top {
    align-items: flex-start;
  }

  .install-note {
    font-size: 0.94rem;
    line-height: 1.5;
  }

  .step {
    padding-left: 1rem;
  }

  .step code,
  code {
    overflow-wrap: anywhere;
  }

  .pipeline-line {
    margin-bottom: 1rem;
    padding: 0.8rem;
    font-size: 0.72rem;
  }

  .diagram-wrap {
    display: block;
    margin-top: 1.2rem;
    overflow: visible;
  }

  .page-architecture .diagram-wrap {
    padding: 0.8rem;
  }

  .arch-diagram-desktop {
    display: none;
  }

  .arch-mobile-diagram {
    display: grid;
    gap: 0;
    width: 100%;
    color: var(--fg);
    font-family: var(--sans);
  }

  .arch-mobile-node {
    position: relative;
    display: grid;
    gap: 0.25rem;
    width: 100%;
    padding: 1rem 1.05rem;
    border: 1px solid var(--line-strong);
    border-radius: 0;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.025), rgba(0, 0, 0, 0.20));
    text-align: left;
  }

  .arch-mobile-node strong {
    color: var(--fg);
    font-family: var(--mono);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    line-height: 1.35;
    text-transform: uppercase;
  }

  .arch-mobile-node small {
    color: var(--muted);
    font-size: 0.82rem;
    line-height: 1.45;
  }

  .arch-mobile-node[data-tone="agent"] {
    border-color: rgba(223, 255, 0, 0.44);
  }

  .arch-mobile-node[data-tone="runtime"] {
    border-color: rgba(92, 200, 255, 0.48);
    background: linear-gradient(180deg, rgba(92, 200, 255, 0.055), rgba(0, 0, 0, 0.20));
  }

  .arch-mobile-node[data-tone="store"] {
    border-color: rgba(180, 142, 255, 0.44);
  }

  .arch-mobile-node[data-tone="success"] {
    border-color: rgba(0, 255, 136, 0.44);
  }

  .arch-mobile-node[data-tone="danger"] {
    border-color: rgba(255, 85, 119, 0.48);
  }

  .arch-mobile-node[data-tone="warning"] {
    border-color: rgba(255, 170, 0, 0.50);
  }

  .arch-mobile-link {
    position: relative;
    min-height: 3rem;
    display: grid;
    place-items: center;
    color: var(--muted-soft);
    font-family: var(--mono);
    font-size: 0.69rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
  }

  .arch-mobile-link::before {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 1px;
    background: var(--line-strong);
    transform: translateX(-50%);
  }

  .arch-mobile-link::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 0.2rem;
    width: 7px;
    height: 7px;
    border-right: 1px solid var(--muted);
    border-bottom: 1px solid var(--muted);
    transform: translateX(-50%) rotate(45deg);
  }

  .arch-mobile-link span {
    position: relative;
    z-index: 1;
    padding: 0.18rem 0.5rem;
    border-radius: 0;
    background: var(--bg);
  }

  .arch-mobile-branch {
    position: relative;
    display: grid;
    gap: 0.65rem;
    padding: 0.8rem 0 0 1.35rem;
  }

  .arch-mobile-branch::before {
    content: "";
    position: absolute;
    top: 0;
    bottom: 1.4rem;
    left: 0.45rem;
    width: 1px;
    background: var(--line-strong);
  }

  .arch-mobile-branch .arch-mobile-node::before {
    content: "";
    position: absolute;
    top: 50%;
    left: -0.9rem;
    width: 0.9rem;
    height: 1px;
    background: var(--line-strong);
  }

  .arch-mobile-branch-label {
    margin: 0 0 0.15rem -1.35rem;
    color: var(--muted-soft);
    font-family: var(--mono);
    font-size: 0.69rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }

  .arch-mobile-outcomes {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.65rem;
  }

  .arch-mobile-reset {
    margin-top: 0.8rem;
    padding: 0.8rem 0.9rem;
    border: 1px dashed var(--line-strong);
    border-radius: 0;
    color: var(--muted);
    font-family: var(--mono);
    font-size: 0.69rem;
    line-height: 1.55;
  }

  .table-wrap {
    margin-top: 1.2rem;
    -webkit-overflow-scrolling: touch;
  }

  th,
  td {
    padding: 0.78rem 0.86rem;
    font-size: 0.81rem;
  }

  pre {
    max-width: 100%;
    padding: 0.82rem;
    font-size: 0.78rem;
    line-height: 1.6;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
    word-break: normal;
  }

  pre code {
    white-space: inherit;
    overflow-wrap: inherit;
  }

  summary {
    padding: 1rem;
    font-size: 0.72rem;
    line-height: 1.45;
  }

  .details-body,
  .callout {
    padding: 1rem;
  }

  .code-list code {
    display: block;
    width: 100%;
    overflow-wrap: anywhere;
  }

  .contact-email {
    width: 100%;
    padding: 0.7rem 0.8rem;
    font-size: 0.94rem;
  }

  .footer {
    grid-template-columns: 1fr;
    padding: 2rem 1.15rem;
    gap: 1.4rem;
    border-radius: 0;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.35rem;
  }

  .back-to-top {
    display: none;
  }
}

@media (max-width: 520px) {
  html {
    scroll-padding-top: 6.8rem;
  }

  section[id] {
    scroll-margin-top: 6.8rem;
  }

  .container {
    padding: 0.5rem 0.5rem 2rem;
  }

  nav[aria-label="Primary"] {
    top: 0.35rem;
    padding: 0.55rem;
  }

  .nav-links {
    gap: 0.2rem;
  }

  .nav-links a {
    min-height: 44px;
    padding: 0.44rem 0.48rem;
    font-size: 0.69rem;
  }

  .hero {
    padding: 2.15rem 1rem 1.75rem;
    border-radius: 0;
  }

  .hero h1,
  h1 {
    font-size: clamp(2.65rem, 14vw, 3.6rem);
  }

  .hero-copy-block h1 {
    font-size: clamp(3rem, 16vw, 4rem);
  }

  .hero h2 {
    font-size: 1.15rem;
  }

  .hero-eyebrow,
  .eyebrow,
  .rail-heading span:last-child,
  .rail-node span {
    font-size: 0.69rem;
  }

  .hero p,
  .hero-copy {
    font-size: 0.95rem;
  }

  .rail-heading {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.2rem;
  }

  .rail-path {
    padding-inline: 0.25rem;
  }

  .rail-node small {
    display: none;
  }

  .rail-caption {
    flex-direction: column;
    gap: 0.5rem;
  }

  .hero-actions {
    grid-template-columns: minmax(0, 1fr);
  }

  .section {
    padding: 2.45rem 1rem;
  }

  .page-landing .section > h3,
  .page-architecture .section > h2,
  .page-docs .section > h2 {
    font-size: clamp(1.9rem, 10.5vw, 2.4rem);
  }

  .footer {
    padding: 1.7rem 1rem;
  }

  .arch-mobile-outcomes {
    grid-template-columns: minmax(0, 1fr);
  }
}

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

  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .publication-rail::before {
    display: none;
  }

  .rail-node::before {
    animation: none;
  }

}

@media (forced-colors: active) {
  *, *::before, *::after {
    box-shadow: none !important;
  }

  .hero,
  .publication-rail,
  .hero-terminal,
  .card,
  .panel,
  .tool-card,
  .config-card,
  .contact-card,
  .runtime-card,
  .footer,
  .table-wrap,
  .diagram-wrap,
  details {
    border-color: CanvasText;
  }

  .btn.primary,
  .nav-links a.cta-contact {
    forced-color-adjust: none;
    color: HighlightText;
    background: Highlight;
    border-color: Highlight;
  }

  a:focus-visible,
  button:focus-visible,
  summary:focus-visible {
    outline: 3px solid Highlight;
  }

  .rail-path::before {
    background: CanvasText;
  }

  .rail-node::before,
  .rail-live i {
    background: CanvasText;
    border-color: Canvas;
  }

}

@media (max-width: 340px) {
  .nav-links {
    gap: 0.08rem;
  }

  .nav-links a,
  .nav-links a.cta-contact {
    min-width: 44px;
    min-height: 44px;
    padding: 0.44rem 0.20rem;
    font-size: 0.69rem;
  }
}