/* =========================================================
   Atmina — redesign
   Dark-first, bold display type, lime accent
   ========================================================= */

:root {
  /* Dark (default) — exact brand black */
  --bg: #0e1312;
  --bg-elev: #161c1b;
  --bg-subtle: #1b2221;
  --bg-card: rgba(22, 28, 27, 0.85);
  --bg-glass: rgba(14, 19, 18, 0.55);
  --fg: #f6f6f3;
  --fg-muted: #b8b8b2;
  --fg-faint: #7a7a74;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.18);

  /* Yellow accent — exact brand yellow */
  --accent: #ffd700;
  --accent-dim: #d9b800;
  --accent-soft: rgba(255, 215, 0, 0.18);
  --accent-on: #0e1312;

  /* Type */
  --font-display: "DM Serif Display", "Iowan Old Style", Georgia, serif;
  --font-sans:
    "Geist", "Bricolage Grotesque", ui-sans-serif, system-ui, sans-serif;
  --font-serif:
    "DM Serif Display", "Instrument Serif", "Iowan Old Style", Georgia, serif;
  --font-mono:
    "Geist Mono", "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --radius: 10px;
  --radius-lg: 18px;
  --radius-xl: 24px;

  --section-y: clamp(4rem, 8vw, 7rem);
  --content-max: 76rem;
}

/* Light theme — for the toggle */
[data-theme="light"] {
  --bg: #f8f7f2;
  --bg-elev: #ffffff;
  --bg-subtle: #f0eee7;
  --bg-card: rgba(255, 255, 255, 0.7);
  --bg-glass: rgba(248, 247, 242, 0.6);
  --fg: #0e1312;
  --fg-muted: #555550;
  --fg-faint: #8e8e88;
  --border: rgba(14, 19, 18, 0.1);
  --border-strong: rgba(14, 19, 18, 0.2);
  --accent-soft: rgba(255, 215, 0, 0.3);
  --accent-on: #0e1312;
}

/* base */
* {
  box-sizing: border-box;
}
html,
body {
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--fg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "ss01", "cv11";
  overflow-x: hidden;
  transition:
    background-color 0.4s ease,
    color 0.4s ease;
  line-height: 1.55;
}
body::before,
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 999;
}
body::before {
  background-image: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='200' height='200' filter='url(%23n)'/></svg>");
  background-repeat: repeat;
  background-size: 200px 200px;
  filter: contrast(170%) brightness(700%);
  mix-blend-mode: soft-light;
  opacity: 0.34;
  -webkit-mask-image: linear-gradient(
    to bottom,
    transparent 0,
    rgba(0, 0, 0, 0.14) 44px,
    rgba(0, 0, 0, 0.58) 108px,
    #000 184px,
    #000 calc(100% - 184px),
    rgba(0, 0, 0, 0.58) calc(100% - 108px),
    rgba(0, 0, 0, 0.14) calc(100% - 44px),
    transparent 100%
  );
  mask-image: linear-gradient(
    to bottom,
    transparent 0,
    rgba(0, 0, 0, 0.14) 44px,
    rgba(0, 0, 0, 0.58) 108px,
    #000 184px,
    #000 calc(100% - 184px),
    rgba(0, 0, 0, 0.58) calc(100% - 108px),
    rgba(0, 0, 0, 0.14) calc(100% - 44px),
    transparent 100%
  );
}
body::after {
  background: radial-gradient(
    ellipse at center,
    transparent 22%,
    rgba(14, 19, 18, 0.34) 90%
  );
  -webkit-mask-image: linear-gradient(
    to bottom,
    transparent 0,
    rgba(0, 0, 0, 0.14) 44px,
    rgba(0, 0, 0, 0.58) 108px,
    #000 184px,
    #000 calc(100% - 184px),
    rgba(0, 0, 0, 0.58) calc(100% - 108px),
    rgba(0, 0, 0, 0.14) calc(100% - 44px),
    transparent 100%
  );
  mask-image: linear-gradient(
    to bottom,
    transparent 0,
    rgba(0, 0, 0, 0.14) 44px,
    rgba(0, 0, 0, 0.58) 108px,
    #000 184px,
    #000 calc(100% - 184px),
    rgba(0, 0, 0, 0.58) calc(100% - 108px),
    rgba(0, 0, 0, 0.14) calc(100% - 44px),
    transparent 100%
  );
}
a {
  color: inherit;
  text-decoration: none;
}
::selection {
  background: var(--accent);
  color: var(--accent-on);
}

/* layout primitives */
.container {
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 3vw, 2.5rem);
}
.section {
  padding: var(--section-y) 0;
  position: relative;
}
.section + .section {
  border-top: 1px solid var(--border);
}
.section--tint {
  background: var(--bg-elev);
}

/* typography */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-faint);
  font-weight: 500;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1;
  margin: 0;
}
h1 {
  font-size: clamp(2.75rem, 7.5vw, 6.5rem);
  font-weight: 400;
}
h2 {
  font-size: clamp(2.25rem, 5.4vw, 4.5rem);
  font-weight: 400;
}
h3 {
  font-size: clamp(1.6rem, 2.6vw, 2.4rem);
  font-weight: 400;
  line-height: 1.05;
}

.serif,
.serif-italic {
  font-family: var(--font-serif);
  font-weight: 400;
  font-style: italic;
  letter-spacing: -0.01em;
}

/* hi-contrast accent highlight */
.hl {
  color: var(--accent);
}
.hl-bg {
  background: var(--accent);
  color: var(--accent-on);
  padding: 0 0.15em;
  border-radius: 4px;
}

/* buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.78rem 1.15rem;
  font: 500 14px/1 var(--font-sans);
  letter-spacing: -0.005em;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition:
    background 0.2s ease,
    color 0.2s ease,
    border-color 0.2s ease,
    transform 0.2s ease,
    box-shadow 0.2s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: var(--accent-on);
  border-color: var(--accent);
  box-shadow: 0 0 0 0 color-mix(in oklab, var(--accent) 30%, transparent);
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 30px -8px
    color-mix(in oklab, var(--accent) 50%, transparent);
}
.btn-ghost {
  background: transparent;
  color: var(--fg);
  border-color: var(--border-strong);
}
.btn-ghost:hover {
  background: var(--bg-subtle);
  border-color: var(--fg-muted);
}

/* nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  background: color-mix(in oklab, var(--bg) 70%, transparent);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  line-height: 1;
}
.nav-brand .brand-wordmark {
  display: block;
  height: 36px;
  width: auto;
  flex-shrink: 0;
}
.nav-brand .brand-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 3px 7px;
  border-radius: 999px;
  border: 1px solid color-mix(in oklab, var(--accent) 30%, transparent);
  background: color-mix(in oklab, var(--accent) 12%, transparent);
}
.nav-links {
  display: none;
  gap: 1.5rem;
  font-size: 13.5px;
  color: var(--fg-muted);
  white-space: nowrap;
}
.nav-links a {
  transition: color 0.15s ease;
}
.nav-links a:hover {
  color: var(--fg);
}
@media (min-width: 980px) {
  .nav-links {
    display: flex;
  }
}
.nav-right {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

/* ========== HERO ========== */
.hero {
  position: relative;
  padding: clamp(3.5rem, 7vw, 6.5rem) 0 clamp(3.5rem, 7vw, 6rem);
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(
      to right,
      color-mix(in oklab, var(--fg) 6%, transparent) 1px,
      transparent 1px
    ),
    linear-gradient(
      to bottom,
      color-mix(in oklab, var(--fg) 6%, transparent) 1px,
      transparent 1px
    );
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(
    ellipse 80% 60% at 50% 30%,
    black 30%,
    transparent 80%
  );
  mask-image: radial-gradient(
    ellipse 80% 60% at 50% 30%,
    black 30%,
    transparent 80%
  );
  opacity: 0.55;
}
.hero-glow {
  position: absolute;
  width: 70vw;
  height: 70vw;
  max-width: 1100px;
  max-height: 1100px;
  left: 50%;
  top: -30%;
  transform: translateX(-50%);
  background: radial-gradient(
    circle at center,
    color-mix(in oklab, var(--accent) 28%, transparent),
    transparent 65%
  );
  filter: blur(40px);
  opacity: 0.7;
}
.hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.55;
}

.hero-inner {
  position: relative;
  z-index: 2;
  text-align: center;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  padding: 6px 13px 6px 8px;
  border-radius: 999px;
  border: 1px solid color-mix(in oklab, var(--accent) 30%, transparent);
  background: color-mix(in oklab, var(--accent) 8%, var(--bg-glass));
  backdrop-filter: blur(8px);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-muted);
  letter-spacing: 0.04em;
  margin-bottom: 2rem;
}
.hero-pill .dot {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent) 25%, transparent);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%,
  100% {
    box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent) 25%, transparent);
  }
  50% {
    box-shadow: 0 0 0 6px color-mix(in oklab, var(--accent) 8%, transparent);
  }
}
.hero-pill .arrow {
  color: var(--accent);
}

.hero h1 {
  max-width: 16ch;
  margin: 0 auto;
  text-wrap: balance;
}
.hero h1 .serif {
  color: var(--accent);
  font-weight: 400;
  font-style: italic;
}
.hero-sub {
  margin: 1.75rem auto 0;
  max-width: 40em;
  font-size: clamp(1.05rem, 1.35vw, 1.25rem);
  color: var(--fg-muted);
  line-height: 1.55;
  text-wrap: pretty;
}
.hero-cta-row {
  margin-top: 2.5rem;
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
}
.hero-note {
  margin-top: 1rem;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-faint);
  letter-spacing: 0.04em;
}
.hero-note .ok {
  color: var(--accent);
}

/* hero code preview */
.hero-code {
  margin: 4rem auto 0;
  max-width: 720px;
  position: relative;
  z-index: 2;
}
.code-card {
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-strong);
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  overflow: hidden;
  box-shadow:
    0 0 0 1px color-mix(in oklab, var(--accent) 10%, transparent),
    0 30px 80px -30px color-mix(in oklab, var(--accent) 25%, transparent),
    0 20px 50px -20px color-mix(in oklab, #000 60%, transparent);
}
.code-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-faint);
  letter-spacing: 0.06em;
}
.code-head .dots {
  display: flex;
  gap: 6px;
}
.code-head .dots span {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: color-mix(in oklab, var(--fg) 18%, transparent);
}
.code-head .copy {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font: 500 11px var(--font-mono);
  letter-spacing: 0.05em;
  background: transparent;
  color: var(--fg-muted);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 8px;
  cursor: pointer;
  transition:
    color 0.15s ease,
    border-color 0.15s ease;
}
.code-head .copy:hover {
  color: var(--accent);
  border-color: color-mix(in oklab, var(--accent) 40%, transparent);
}

.code-body {
  padding: 18px 22px;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--fg);
  text-align: left;
  overflow-x: auto;
}
.code-body .c-prompt {
  color: var(--fg-faint);
  user-select: none;
}
.code-body .c-cmd {
  color: var(--fg);
}
.code-body .c-acc {
  color: var(--accent);
}
.code-body .c-key {
  color: oklch(0.78 0.15 240);
}
.code-body .c-str {
  color: oklch(0.82 0.13 50);
}
.code-body .c-com {
  color: var(--fg-faint);
  font-style: italic;
}
[data-theme="light"] .code-body .c-key {
  color: oklch(0.5 0.18 260);
}
[data-theme="light"] .code-body .c-str {
  color: oklch(0.55 0.16 30);
}

/* ========== STATS STRIP ========== */
.stats {
  padding: 3rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-elev);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}
@media (min-width: 760px) {
  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}
.stat {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  text-align: left;
}
.stat .v {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.4vw, 2.75rem);
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1;
  color: var(--fg);
}
.stat .v .unit {
  font-size: 0.55em;
  color: var(--fg-faint);
  font-weight: 400;
  margin-left: 4px;
}
.stat .k {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-faint);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ========== LOGOS / MARQUEE ========== */
.logos {
  padding: 4rem 0;
  overflow: hidden;
}
.logos-label {
  text-align: center;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  color: var(--fg-faint);
  text-transform: uppercase;
  margin-bottom: 2rem;
}
.marquee {
  display: flex;
  gap: 2.5rem;
  width: max-content;
  animation: scroll-x 54s linear infinite;
}
.marquee-mask {
  -webkit-mask-image: linear-gradient(
    90deg,
    transparent,
    #000 8%,
    #000 92%,
    transparent
  );
  mask-image: linear-gradient(
    90deg,
    transparent,
    #000 8%,
    #000 92%,
    transparent
  );
}
@keyframes scroll-x {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}
.logo-chip {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 22px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 500;
  color: var(--fg-muted);
  letter-spacing: -0.015em;
  white-space: nowrap;
  transition:
    color 0.2s,
    border-color 0.2s;
}
.logo-chip:hover {
  color: var(--fg);
  border-color: var(--border-strong);
}
.logo-chip img {
  width: 17px;
  height: 17px;
  display: block;
  filter: invert(1);
  opacity: 0.72;
  flex: none;
}
.logo-chip:hover img {
  opacity: 0.95;
}
[data-theme="light"] .logo-chip img {
  filter: none;
  opacity: 0.7;
}

/* ========== SECTION HEADERS ========== */
.section-head {
  max-width: 50rem;
  margin-bottom: 4rem;
}
.section-head .eyebrow {
  display: inline-block;
  margin-bottom: 1.25rem;
}
.section-head h2 {
  text-wrap: balance;
}
.section-head p {
  margin-top: 1.5rem;
  color: var(--fg-muted);
  font-size: 1.1rem;
  line-height: 1.55;
  max-width: 40em;
  text-wrap: pretty;
}
.section-head--center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}
.section-head--center .eyebrow {
  display: inline-block;
}
.section-head--center p {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

/* ========== FEATURE ROWS ========== */
.feature-row {
  display: grid;
  gap: clamp(2rem, 5vw, 4rem);
  grid-template-columns: 1fr;
  align-items: center;
  padding: clamp(3rem, 6vw, 5rem) 0;
}
.feature-row + .feature-row {
  border-top: 1px dashed var(--border);
}
@media (min-width: 900px) {
  .feature-row {
    grid-template-columns: 0.95fr 1.05fr;
  }
  .feature-row--flip {
    grid-template-columns: 1.05fr 0.95fr;
  }
  .feature-row--flip .feature-copy {
    order: 2;
  }
  .feature-row--flip .feature-visual {
    order: 1;
  }
}
.feature-copy .eyebrow {
  display: block;
  margin-bottom: 1rem;
}
.feature-copy h3 {
  font-size: clamp(1.9rem, 2.8vw, 2.6rem);
  text-wrap: balance;
}
.feature-copy h3 .serif {
  color: var(--accent);
}
.feature-copy p {
  margin-top: 1.2rem;
  color: var(--fg-muted);
  line-height: 1.6;
  max-width: 36em;
  font-size: 1.02rem;
}
.feature-bullets {
  margin-top: 1.75rem;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.65rem;
}
.feature-bullets li {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
  font-size: 14px;
  color: var(--fg-muted);
}
.feature-bullets li::before {
  content: "→";
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 12px;
  margin-top: 0.18em;
  flex-shrink: 0;
}

/* ========== VISUAL FRAMES ========== */
.visual {
  position: relative;
  aspect-ratio: 5 / 4;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-strong);
  background:
    radial-gradient(
      120% 80% at 50% 0%,
      color-mix(in oklab, var(--accent) 8%, transparent),
      transparent 60%
    ),
    var(--bg-elev);
  overflow: hidden;
  box-shadow:
    inset 0 1px 0 color-mix(in oklab, #fff 6%, transparent),
    0 30px 70px -30px color-mix(in oklab, #000 80%, transparent);
}
.visual-inner {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.visual-label {
  position: absolute;
  top: 16px;
  left: 18px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--fg-faint);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.visual-stat {
  position: absolute;
  top: 16px;
  right: 18px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--accent);
  letter-spacing: 0.08em;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.visual-stat .led {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
}

/* --- Visual 1: shared memory beams --- */
.memory-share {
  position: relative;
  width: 86%;
  height: 82%;
}
.beam-layer {
  position: absolute;
  inset: 4% 3%;
  width: 94%;
  height: 92%;
  overflow: visible;
  z-index: 1;
}
.beam-base,
.beam-active {
  fill: none;
  vector-effect: non-scaling-stroke;
  stroke-linecap: round;
}
.beam-base {
  stroke: color-mix(in oklab, var(--fg-muted) 25%, transparent);
  stroke-width: 1;
  opacity: 0.48;
}
.beam-active {
  stroke: url("#beam-agent");
  stroke-width: 2.5;
  stroke-dasharray: 16 104;
  stroke-dashoffset: 120;
  filter: url("#beam-glow");
  opacity: 0.95;
  animation: beam-travel 3.6s linear infinite;
}
.beam-active--person {
  stroke: url("#beam-person");
}
.beam-active--one {
  animation-delay: 0.45s;
}
.beam-active--two {
  animation-delay: 0.9s;
}
.beam-active--three {
  animation-delay: 1.35s;
}
.beam-active--four {
  animation-delay: 1.8s;
}
@keyframes beam-travel {
  to {
    stroke-dashoffset: 0;
  }
}
.memory-node {
  position: absolute;
  transform: translate(-50%, -50%);
  z-index: 4;
  border: 1px solid color-mix(in oklab, var(--accent) 35%, transparent);
  text-align: center;
}
.memory-node strong {
  font-family: var(--font-display);
  font-size: 1.06rem;
  line-height: 1.05;
  color: var(--fg);
  font-weight: 500;
}
.memory-node small {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--fg-faint);
  text-transform: uppercase;
}
.memory-node--atmina {
  left: 36%;
  top: 50%;
  width: min(150px, 32%);
  min-height: 118px;
  border-radius: 22px;
  border-color: color-mix(in oklab, var(--accent) 50%, transparent);
  background:
    radial-gradient(
      circle at 50% 44%,
      color-mix(in oklab, var(--accent) 24%, transparent),
      transparent 58%
    ),
    var(--bg);
  box-shadow:
    0 0 0 1px color-mix(in oklab, var(--accent) 12%, transparent),
    0 0 52px -18px color-mix(in oklab, var(--accent) 72%, transparent);
  padding: 16px 12px;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 10px;
}
.memory-node--atmina .memory-wordmark {
  width: min(96px, 80%);
  height: auto;
}
.share-node {
  position: absolute;
  transform: translate(-50%, -50%);
  width: 76px;
  min-height: 64px;
  padding: 8px 8px 7px;
  border-radius: 18px;
  border: 1px solid var(--border-strong);
  background: var(--bg-elev);
  color: var(--fg);
  box-shadow: 0 12px 24px -18px color-mix(in oklab, #000 70%, transparent);
  white-space: nowrap;
  z-index: 4;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 5px;
}
.share-node img,
.share-node span {
  width: 24px;
  height: 24px;
}
.share-node img {
  filter: invert(1);
  opacity: 0.94;
}
.share-node span {
  border-radius: 999px;
  display: grid;
  place-items: center;
  background: color-mix(in oklab, var(--fg-muted) 18%, transparent);
  color: var(--fg);
  font: 700 12px var(--font-sans);
}
.share-node small {
  color: inherit;
  font: 500 11px var(--font-sans);
}
.share-node--agent {
  border-color: color-mix(in oklab, var(--accent) 30%, var(--border-strong));
}
.share-node--person {
  border-color: color-mix(in oklab, var(--fg-muted) 42%, transparent);
  background:
    linear-gradient(
      180deg,
      color-mix(in oklab, var(--fg-muted) 8%, transparent),
      transparent
    ),
    var(--bg-elev);
  color: var(--fg-muted);
}
.share-node--claude {
  top: 20%;
  left: 80%;
}
.share-node--cursor {
  top: 40%;
  left: 82%;
}
.share-node--alice {
  top: 62%;
  left: 82%;
}
.share-node--bob {
  top: 82%;
  left: 80%;
}

@media (prefers-reduced-motion: reduce) {
  .beam-active {
    animation: none;
    stroke-dashoffset: 52;
  }
}

.kg {
  position: relative;
  width: 86%;
  height: 86%;
}
.kg .node {
  position: absolute;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: var(--bg-elev);
  font: 500 12px var(--font-sans);
  color: var(--fg);
  box-shadow: 0 4px 16px -8px color-mix(in oklab, #000 50%, transparent);
  white-space: nowrap;
  transform: translate(-50%, -50%);
}
.kg .node--accent {
  background: var(--accent);
  color: var(--accent-on);
  border-color: transparent;
  box-shadow: 0 0 24px -4px color-mix(in oklab, var(--accent) 60%, transparent);
}
.kg .node--ghost {
  color: var(--fg-faint);
  background: transparent;
  border-style: dashed;
}
.kg svg.edges {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
}
.kg svg.edges path {
  fill: none;
  stroke: var(--border-strong);
  stroke-width: 1;
}
.kg svg.edges path.active {
  stroke: var(--accent);
  stroke-width: 1.4;
  stroke-dasharray: 4 5;
  animation: dash 1.4s linear infinite;
}
@keyframes dash {
  to {
    stroke-dashoffset: -18;
  }
}

/* --- Visual 2: chat context --- */
.chat {
  width: 88%;
  height: 78%;
  margin-top: 34px;
  display: flex;
  flex-direction: column;
  border-radius: 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  overflow: hidden;
  font-size: 13px;
  box-shadow: 0 20px 40px -20px color-mix(in oklab, #000 70%, transparent);
}
.chat-head {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-faint);
  letter-spacing: 0.04em;
}
.chat-head .dot {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
}
.chat-head .ms {
  margin-left: auto;
  color: var(--accent);
}
.chat-body {
  padding: 16px;
  display: grid;
  gap: 12px;
  flex: 1;
  overflow: hidden;
  align-content: start;
}
.bubble {
  padding: 11px 14px;
  border-radius: 12px;
  max-width: 88%;
  line-height: 1.55;
}
.bubble.user {
  justify-self: end;
  background: var(--bg-subtle);
  color: var(--fg);
  border: 1px solid var(--border);
}
.bubble.agent {
  justify-self: start;
  background: color-mix(in oklab, var(--accent) 12%, transparent);
  border: 1px solid color-mix(in oklab, var(--accent) 30%, transparent);
  color: var(--fg);
}
.bubble.agent b {
  color: var(--accent);
  font-weight: 600;
}
.bubble.agent .cite {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--fg-faint);
  letter-spacing: 0.04em;
}
.chat-context {
  border-top: 1px dashed var(--border);
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.05em;
  color: var(--fg-faint);
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}
.chat-context .tag {
  padding: 3px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-subtle);
}
.chat-context .tag--acc {
  color: var(--accent);
  border-color: color-mix(in oklab, var(--accent) 35%, transparent);
  background: color-mix(in oklab, var(--accent) 10%, transparent);
}

/* --- Visual 3: integrations orbit --- */
.orbit {
  position: relative;
  width: 92%;
  height: 92%;
}
.orbit .ring {
  position: absolute;
  border: 1px dashed color-mix(in oklab, var(--fg) 12%, transparent);
  border-radius: 999px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.orbit .ring-1 {
  width: 50%;
  aspect-ratio: 1;
  animation: spin 30s linear infinite;
}
.orbit .ring-2 {
  width: 82%;
  aspect-ratio: 1;
  animation: spin 60s linear infinite reverse;
}
@keyframes spin {
  to {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}
.orbit .hub {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  padding: 17px 22px 15px;
  border-radius: 16px;
  background: var(--accent);
  display: grid;
  place-items: center;
  box-shadow: 0 0 50px -10px color-mix(in oklab, var(--accent) 60%, transparent);
}
.orbit .hub img {
  display: block;
  width: 82px;
  height: auto;
}
.orbit .chip {
  position: absolute;
  transform: translate(-50%, -50%);
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--bg-elev);
  border: 1px solid var(--border-strong);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--fg);
  box-shadow: 0 8px 18px -12px color-mix(in oklab, #000 60%, transparent);
  white-space: nowrap;
}

@media (max-width: 1180px), (hover: none) and (pointer: coarse) {
  body::before {
    background-size: 280px 280px;
    filter: grayscale(1) contrast(145%) brightness(95%);
    mix-blend-mode: normal;
    opacity: 0.1;
  }

  body::after {
    background: radial-gradient(
      ellipse at center,
      transparent 28%,
      rgba(14, 19, 18, 0.22) 94%
    );
  }

  .zone-yellow::before {
    background-size: 520px 520px;
    filter: grayscale(1) contrast(160%) brightness(66%);
    opacity: 0.2;
  }
}

@media (max-width: 640px) {
  .visual {
    aspect-ratio: 1 / 0.92;
    border-radius: 22px;
  }

  .visual-label {
    top: 14px;
    left: 15px;
    font-size: 9px;
    letter-spacing: 0.1em;
  }

  .visual-stat {
    display: none;
  }

  .memory-share {
    width: 92%;
    height: 82%;
  }

  .beam-layer {
    inset: 6% 1%;
    width: 98%;
    height: 88%;
  }

  .memory-node--atmina {
    left: 34%;
    width: min(118px, 36%);
    min-height: 104px;
    border-radius: 20px;
    padding: 14px 10px;
    gap: 8px;
  }

  .memory-node--atmina .memory-wordmark {
    width: min(82px, 78%);
  }

  .memory-node small {
    font-size: 9px;
  }

  .share-node {
    width: 62px;
    min-height: 52px;
    padding: 6px 7px;
    border-radius: 16px;
    gap: 4px;
  }

  .share-node img,
  .share-node span {
    width: 20px;
    height: 20px;
  }

  .share-node small {
    font-size: 10px;
  }

  .share-node--claude {
    top: 16%;
    left: 80%;
  }

  .share-node--cursor {
    top: 38%;
    left: 82%;
  }

  .share-node--alice {
    top: 62%;
    left: 82%;
  }

  .share-node--bob {
    top: 84%;
    left: 80%;
  }

  .chat {
    width: 90%;
    height: 74%;
    margin-top: 18px;
    font-size: 11px;
  }

  .chat-head {
    padding: 10px 12px;
    gap: 8px;
    font-size: 9.5px;
    letter-spacing: 0.02em;
  }

  .chat-head .ms {
    margin-left: auto;
    white-space: nowrap;
  }

  .chat-body {
    padding: 12px;
    gap: 10px;
  }

  .bubble {
    max-width: 94%;
    padding: 9px 11px;
    line-height: 1.45;
  }

  .bubble.agent .cite {
    font-size: 9px;
  }

  .chat-context {
    padding: 10px 12px;
    gap: 6px;
    font-size: 9px;
  }

  .chat-context .tag {
    padding: 2px 7px;
  }

  .orbit {
    width: 88%;
    height: 88%;
  }

  .orbit .ring-1 {
    width: 48%;
  }

  .orbit .ring-2 {
    width: 76%;
  }

  .orbit .hub {
    padding: 14px 18px 12px;
    border-radius: 14px;
  }

  .orbit .hub img {
    width: 70px;
  }

  .orbit .chip {
    padding: 6px 9px;
    font-size: 9px;
    letter-spacing: 0.03em;
  }
}

/* ========== HOW IT WORKS ========== */
.steps {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}
@media (min-width: 720px) {
  .steps {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1000px) {
  .steps {
    grid-template-columns: repeat(4, 1fr);
  }
}
.step {
  padding: 1.5rem 1.4rem 1.75rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg-card);
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  transition:
    transform 0.25s ease,
    border-color 0.25s ease,
    background 0.25s;
  position: relative;
  overflow: hidden;
}
.step:hover {
  transform: translateY(-2px);
  border-color: color-mix(in oklab, var(--accent) 40%, transparent);
}
.step-num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.1em;
}
.step h4 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 500;
  margin: 0;
  line-height: 1.15;
  letter-spacing: -0.02em;
}
.step p {
  margin: 0;
  font-size: 14px;
  color: var(--fg-muted);
  line-height: 1.55;
}
.step-visual {
  aspect-ratio: 16/10;
  border-radius: 10px;
  border: 1px solid var(--border);
  background:
    radial-gradient(
      100% 100% at 50% 0%,
      color-mix(in oklab, var(--accent) 8%, transparent),
      transparent 60%
    ),
    var(--bg-elev);
  position: relative;
  overflow: hidden;
  display: grid;
  place-items: center;
}
.step-visual .vl {
  position: absolute;
  left: 10px;
  bottom: 8px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--fg-faint);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* step visual content per index */
.sv-connect {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-muted);
  text-align: center;
  line-height: 1.7;
}
.sv-connect .c-acc {
  color: var(--accent);
}
.sv-sync {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  max-width: 80%;
  justify-content: center;
}
.sv-sync span {
  font-family: var(--font-mono);
  font-size: 10px;
  padding: 3px 7px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  color: var(--fg-muted);
  letter-spacing: 0.04em;
}
.sv-sync span:nth-child(2n) {
  color: var(--accent);
  border-color: color-mix(in oklab, var(--accent) 40%, transparent);
}
.sv-deliver {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg);
  text-align: center;
  line-height: 1.4;
}
.sv-deliver .big {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--accent);
  font-weight: 500;
  letter-spacing: -0.03em;
}
.sv-manage {
  display: flex;
  gap: 6px;
  align-items: center;
  flex-wrap: wrap;
  justify-content: center;
}
.sv-manage .pill {
  font-family: var(--font-mono);
  font-size: 10px;
  padding: 4px 8px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  color: var(--fg-muted);
  letter-spacing: 0.04em;
}
.sv-manage .pill.on {
  color: var(--accent-on);
  background: var(--accent);
  border-color: var(--accent);
}

/* ========== PRIVACY ========== */
.privacy-grid {
  display: grid;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
@media (min-width: 720px) {
  .privacy-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1000px) {
  .privacy-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}
.privacy-cell {
  padding: 2rem 1.5rem;
  background: var(--bg);
  min-height: 180px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1.5rem;
  transition: background 0.2s ease;
}
.privacy-cell:hover {
  background: var(--bg-elev);
}
.privacy-cell .eyebrow {
  color: var(--accent);
}
.privacy-cell .title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.02em;
}
.privacy-cell .ic {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: color-mix(in oklab, var(--accent) 18%, transparent);
  border: 1px solid color-mix(in oklab, var(--accent) 35%, transparent);
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
}

/* ========== AUDIENCE ========== */
.audience {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}
@media (min-width: 760px) {
  .audience {
    grid-template-columns: repeat(3, 1fr);
  }
}
.aud-card {
  padding: 1.75rem 1.6rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  transition:
    background 0.2s,
    border-color 0.2s,
    transform 0.2s;
}
.aud-card:hover {
  border-color: color-mix(in oklab, var(--accent) 45%, transparent);
  transform: translateY(-2px);
}
.aud-card .eyebrow {
  color: var(--fg-faint);
}
.aud-card h4 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  margin: 0;
  line-height: 1.12;
}
.aud-card p {
  font-size: 14px;
  color: var(--fg-muted);
  line-height: 1.55;
  margin: 0;
}
.aud-card .more {
  margin-top: auto;
  padding-top: 0.75rem;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--accent);
  display: inline-flex;
  gap: 6px;
  align-items: center;
}

/* ========== CTA ========== */
.cta-wrap {
  position: relative;
  scroll-margin-top: 1.5rem;
  border-radius: var(--radius-xl);
  padding: clamp(3rem, 7vw, 5.5rem) clamp(1.5rem, 4vw, 3rem);
  text-align: center;
  background: var(--accent);
  color: var(--accent-on);
  overflow: hidden;
}
.cta-wrap::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(
      to right,
      color-mix(in oklab, var(--accent-on) 10%, transparent) 1px,
      transparent 1px
    ),
    linear-gradient(
      to bottom,
      color-mix(in oklab, var(--accent-on) 10%, transparent) 1px,
      transparent 1px
    );
  background-size: 60px 60px;
  -webkit-mask-image: radial-gradient(
    ellipse 80% 60% at 50% 50%,
    black 30%,
    transparent 80%
  );
  mask-image: radial-gradient(
    ellipse 80% 60% at 50% 50%,
    black 30%,
    transparent 80%
  );
  opacity: 0.4;
  pointer-events: none;
}
.cta-wrap::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='200' height='200' filter='url(%23n)'/></svg>");
  background-repeat: repeat;
  background-size: 420px 420px;
  filter: grayscale(1) contrast(180%) brightness(70%);
  opacity: 0.18;
}
.cta-wrap > * {
  position: relative;
  z-index: 3;
}
.cta-wrap .eyebrow {
  color: color-mix(in oklab, var(--accent-on) 60%, transparent);
}
.cta-wrap h2 {
  margin: 1.25rem auto 0;
  max-width: 22ch;
  color: var(--accent-on);
}
.cta-wrap h2 .serif {
  color: color-mix(in oklab, var(--accent-on) 80%, var(--accent));
}
.cta-wrap .lead {
  margin: 1.5rem auto 0;
  color: color-mix(in oklab, var(--accent-on) 80%, transparent);
  max-width: 38em;
  font-size: 1.05rem;
}
.cta-form {
  max-width: 460px;
  margin: 2rem auto 0;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  background: color-mix(in oklab, var(--accent-on) 8%, transparent);
  border: 1px solid color-mix(in oklab, var(--accent-on) 20%, transparent);
  border-radius: 999px;
  padding: 6px 6px 6px 18px;
}
.cta-form input {
  -webkit-appearance: none;
  appearance: none;
  flex: 1;
  min-width: 200px;
  padding: 0.6rem 0;
  border: 0;
  border-radius: 999px;
  -webkit-border-radius: 999px;
  background: transparent !important;
  background-color: transparent !important;
  background-image: none !important;
  color: var(--accent-on);
  -webkit-text-fill-color: var(--accent-on);
  caret-color: var(--accent-on);
  font: 500 14px var(--font-sans);
  outline: none;
  box-shadow: none;
}
.cta-form input:focus {
  background: transparent !important;
  background-color: transparent !important;
  background-image: none !important;
  box-shadow: none;
}
.cta-form input:-webkit-autofill,
.cta-form input:-webkit-autofill:hover,
.cta-form input:-webkit-autofill:focus {
  -webkit-text-fill-color: var(--accent-on);
  caret-color: var(--accent-on);
  box-shadow: 0 0 0 1000px #ffd700 inset;
  transition: background-color 9999s ease-out;
}
.cta-form input::placeholder {
  color: color-mix(in oklab, var(--accent-on) 50%, transparent);
}
.cta-form .btn {
  background: var(--accent-on);
  color: var(--accent);
  border-color: var(--accent-on);
}
.cta-form .btn:hover {
  transform: none;
  box-shadow: none;
  opacity: 0.92;
}
.newsletter-opt-in {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  width: min(100%, 32rem);
  margin: 0.9rem auto 0;
  color: color-mix(in oklab, var(--accent-on) 76%, transparent);
  font: 500 0.86rem/1.4 var(--font-sans);
  cursor: pointer;
}
.newsletter-opt-in input {
  width: 1rem;
  height: 1rem;
  margin: 0;
  accent-color: var(--accent-on);
}

@media (max-width: 640px) {
  .cta-wrap {
    padding: 2.75rem 1rem;
  }

  .cta-form {
    max-width: 20rem;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    border-radius: 28px;
    padding: 10px;
  }

  .cta-form input {
    width: 100%;
    min-width: 0;
    padding: 0.85rem 0.75rem 0.65rem;
    text-align: center;
    font-size: 16px;
  }

  .cta-form .btn {
    justify-content: center;
    width: 100%;
    min-height: 44px;
  }

  .participant-switch {
    max-width: 100%;
    font-size: 10px;
  }

  .participant-switch button {
    padding: 7px 11px;
  }

  .cta-fineprint {
    max-width: 19rem;
    font-size: 0.75rem;
  }

  .newsletter-opt-in {
    max-width: 19rem;
    align-items: flex-start;
    text-align: left;
    font-size: 0.8rem;
  }
}

.participant-switch {
  display: inline-flex;
  gap: 4px;
  padding: 4px;
  border-radius: 999px;
  border: 1px solid color-mix(in oklab, var(--accent-on) 20%, transparent);
  background: color-mix(in oklab, var(--accent-on) 6%, transparent);
  margin: 0 auto 1.25rem;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
}
.participant-switch button {
  padding: 7px 14px;
  border-radius: 999px;
  background: transparent;
  border: 0;
  color: color-mix(in oklab, var(--accent-on) 65%, transparent);
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  transition:
    background 0.2s ease,
    color 0.2s ease;
}
.participant-switch button.active {
  background: var(--accent-on);
  color: var(--accent);
}

.cta-done {
  max-width: 460px;
  margin: 2rem auto 0;
  padding: 1.5rem;
  border: 1px solid color-mix(in oklab, var(--accent-on) 30%, transparent);
  border-radius: 16px;
  background: color-mix(in oklab, var(--accent-on) 8%, transparent);
}
.cta-done .eyebrow {
  color: var(--accent-on);
}

.cta-foot {
  margin-top: 1.25rem;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: color-mix(in oklab, var(--accent-on) 70%, transparent);
}

/* ========== FOOTER ========== */
.footer {
  padding: 4.5rem 0 2.5rem;
  border-top: 1px solid var(--border);
}
.footer-grid {
  display: grid;
  gap: 2.5rem;
  grid-template-columns: 1fr;
}
@media (min-width: 760px) {
  .footer-grid {
    grid-template-columns: 1.6fr repeat(3, 1fr);
  }
}
.footer h5 {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-faint);
  margin: 0 0 1rem;
}
.footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.6rem;
}
.footer a {
  color: var(--fg-muted);
  font-size: 14px;
  transition: color 0.15s ease;
}
.footer a:hover {
  color: var(--accent);
}
.footer-wordmark {
  display: block;
  height: 56px;
  width: auto;
}
.footer-desc {
  margin-top: 0.75rem;
  color: var(--fg-muted);
  font-size: 14px;
  max-width: 30em;
  line-height: 1.6;
}
.footer-bottom {
  margin-top: 3.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--fg-faint);
  text-transform: uppercase;
}

/* subpage */
.page-hero {
  padding: clamp(4rem, 8vw, 7rem) 0 clamp(2.5rem, 5vw, 4rem);
  text-align: left;
}
.page-hero .eyebrow {
  display: block;
  margin-bottom: 1.25rem;
}
.page-hero h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  max-width: 18ch;
}
.page-hero p {
  margin-top: 1.5rem;
  max-width: 40em;
  color: var(--fg-muted);
  font-size: 1.1rem;
  line-height: 1.6;
}
.page-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--fg-muted);
  margin-bottom: 2.5rem;
  text-transform: uppercase;
}
.page-back:hover {
  color: var(--accent);
}

.tldr {
  padding: 1.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  display: grid;
  gap: 1rem;
}
.tldr-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}
@media (min-width: 720px) {
  .tldr-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}
.tldr-item {
  display: grid;
  gap: 0.25rem;
}
.tldr-item .k {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--fg-faint);
  text-transform: uppercase;
}
.tldr-item .v {
  font-size: 14px;
  color: var(--fg);
}

/* tweaks panel */
.tweaks-panel {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 50;
  width: 300px;
  max-height: 80vh;
  overflow: auto;
  background: var(--bg-elev);
  border: 1px solid var(--border-strong);
  border-radius: 14px;
  padding: 1rem 1rem 1.25rem;
  box-shadow: 0 20px 50px -20px color-mix(in oklab, #000 80%, transparent);
  font-size: 13px;
  display: none;
}
.tweaks-panel.open {
  display: block;
}
.tweaks-panel h5 {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-faint);
  margin: 1rem 0 0.5rem;
}
.tweaks-panel h5:first-child {
  margin-top: 0;
}
.tweaks-panel .tweak-title {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 0.25rem;
}
.tweaks-panel .tweak-close {
  background: transparent;
  border: 0;
  cursor: pointer;
  font-size: 18px;
  color: var(--fg-muted);
  width: 24px;
  height: 24px;
  line-height: 1;
}
.tweaks-panel select,
.tweaks-panel input[type="range"] {
  width: 100%;
  padding: 6px 8px;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  background: var(--bg);
  color: var(--fg);
  font: inherit;
  margin-bottom: 0.75rem;
}
.tweaks-panel input[type="range"] {
  padding: 0;
}
.swatches {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
  margin-bottom: 0.75rem;
}
.swatch {
  aspect-ratio: 1;
  border-radius: 7px;
  border: 2px solid transparent;
  cursor: pointer;
}
.swatch.active {
  border-color: var(--fg);
}

.hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 0;
}
.hidden {
  display: none !important;
}

/* ============================================================
   ZONE: YELLOW  — top of page, before the dark cut
   Reverses palette: yellow bg, dark fg. Wraps hero + stats.
   ============================================================ */
.zone-yellow {
  --bg: #ffd700;
  --bg-elev: #ffe14d;
  --bg-subtle: #f5cc00;
  --bg-card: rgba(14, 19, 18, 0.05);
  --bg-glass: rgba(255, 215, 0, 0.7);
  --fg: #0e1312;
  --fg-muted: #2a2f2e;
  --fg-faint: #4d524f;
  --border: rgba(14, 19, 18, 0.15);
  --border-strong: rgba(14, 19, 18, 0.3);
  --accent: #0e1312;
  --accent-on: #ffd700;
  --accent-soft: rgba(14, 19, 18, 0.1);
  background: #ffd700;
  position: relative;
  color: #0e1312;
  isolation: isolate;
  overflow: hidden;
}
.zone-yellow::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='200' height='200' filter='url(%23n)'/></svg>");
  background-repeat: repeat;
  background-size: 420px 420px;
  filter: grayscale(1) contrast(180%) brightness(70%);
  opacity: 0.18;
}
.zone-yellow::after {
  /* dotted hatch divider at the bottom edge */
  content: "";
  display: block;
  position: relative;
  z-index: 2;
  height: 28px;
  background-image: repeating-linear-gradient(
    -45deg,
    #0e1312 0 2px,
    transparent 2px 9px
  );
  opacity: 0.85;
}
.zone-yellow > * {
  position: relative;
  z-index: 1;
}

/* Hero on yellow — drop the dark glow + canvas, replace with structural ornaments */
.zone-yellow .hero {
  background: transparent;
}
.zone-yellow .hero-glow {
  display: none;
}
.zone-yellow .hero-canvas {
  display: none;
}
.zone-yellow .hero-grid {
  background-image:
    linear-gradient(to right, rgba(14, 19, 18, 0.08) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(14, 19, 18, 0.08) 1px, transparent 1px);
  -webkit-mask-image: radial-gradient(
    ellipse 90% 65% at 50% 35%,
    black 35%,
    transparent 85%
  );
  mask-image: radial-gradient(
    ellipse 90% 65% at 50% 35%,
    black 35%,
    transparent 85%
  );
}

.zone-yellow .hero-pill {
  background: rgba(14, 19, 18, 0.06);
  border-color: rgba(14, 19, 18, 0.25);
  color: #0e1312;
}
.zone-yellow .hero-pill .dot {
  background: #0e1312;
  box-shadow: 0 0 0 3px rgba(14, 19, 18, 0.15);
}
@keyframes pulse-dark {
  0%,
  100% {
    box-shadow: 0 0 0 3px rgba(14, 19, 18, 0.15);
  }
  50% {
    box-shadow: 0 0 0 6px rgba(14, 19, 18, 0.05);
  }
}
.zone-yellow .hero-pill .dot {
  animation: pulse-dark 2.4s ease-in-out infinite;
}
.zone-yellow .hero-pill .arrow {
  color: #0e1312;
}

.zone-yellow .hero h1 {
  color: #0e1312;
}
.zone-yellow .hero h1 .serif {
  color: #0e1312;
  font-style: italic;
}
.zone-yellow .hero-sub {
  color: #2a2f2e;
}
.zone-yellow .hero-note {
  color: #4d524f;
}
.zone-yellow .hero-note .ok {
  color: #0e1312;
}

/* Buttons in yellow zone */
.zone-yellow .btn-primary {
  background: #0e1312;
  color: #ffd700;
  border-color: #0e1312;
}
.zone-yellow .btn-primary:hover {
  box-shadow: 0 12px 30px -8px rgba(14, 19, 18, 0.35);
}
.zone-yellow .btn-ghost {
  background: transparent;
  color: #0e1312;
  border-color: rgba(14, 19, 18, 0.35);
}
.zone-yellow .btn-ghost:hover {
  background: rgba(14, 19, 18, 0.08);
  border-color: #0e1312;
}

/* Code preview on yellow */
.zone-yellow .code-card {
  background: #0e1312;
  border-color: rgba(14, 19, 18, 0.4);
  box-shadow:
    0 0 0 1px rgba(14, 19, 18, 0.1),
    0 30px 80px -20px rgba(14, 19, 18, 0.35);
}
.zone-yellow .code-head {
  border-bottom-color: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.55);
}
.zone-yellow .code-head .copy {
  color: rgba(255, 255, 255, 0.7);
  border-color: rgba(255, 255, 255, 0.12);
}
.zone-yellow .code-head .copy:hover {
  color: #ffd700;
  border-color: rgba(255, 215, 0, 0.4);
}
.zone-yellow .code-body {
  color: #f6f6f3;
}
.zone-yellow .code-body .c-prompt,
.zone-yellow .code-body .c-com {
  color: rgba(255, 255, 255, 0.5);
}
.zone-yellow .code-body .c-acc {
  color: #ffd700;
}
.zone-yellow .code-body .c-key {
  color: #8db4ff;
}
.zone-yellow .code-body .c-str {
  color: #ffc66b;
}

/* Stats on yellow */
.zone-yellow .stats {
  background: transparent;
  border-top: 1px solid rgba(14, 19, 18, 0.15);
  border-bottom: 0;
  padding-top: 2.5rem;
}
.zone-yellow .stat .v {
  color: #0e1312;
}
.zone-yellow .stat .v .unit {
  color: #4d524f;
}
.zone-yellow .stat .k {
  color: #2a2f2e;
}

/* nav in yellow zone */
.zone-yellow .nav {
  background: color-mix(in oklab, #ffd700 88%, #0e1312 12%);
  border-bottom-color: rgba(14, 19, 18, 0.08);
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
  overflow: hidden;
}
.zone-yellow .nav::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='200' height='200' filter='url(%23n)'/></svg>");
  background-repeat: repeat;
  background-size: 520px 520px;
  filter: grayscale(1) contrast(145%) brightness(66%);
  opacity: 0.16;
}
.zone-yellow .nav-inner {
  position: relative;
  z-index: 1;
}
.zone-yellow .nav-links a {
  color: #2a2f2e;
}
.zone-yellow .nav-links a:hover {
  color: #0e1312;
}
.zone-yellow .brand-tag {
  color: #0e1312;
  border-color: rgba(14, 19, 18, 0.3);
  background: rgba(14, 19, 18, 0.08);
}
/* In yellow zone, brand-mark uses inverted halves: dark stays dark, yellow tile is darker yellow for contrast */
.zone-yellow .brand-mark .bm-dark {
  fill: #0e1312;
}
.zone-yellow .brand-mark .bm-yellow {
  fill: #ffd700;
}
.zone-yellow .brand-mark {
  outline: 1px solid rgba(14, 19, 18, 0.15);
  border-radius: 999px;
}

/* Logo strip — moves below the cut, runs on dark */