:root {
  color-scheme: dark;
  --bg: #070912;
  --bg-2: #0c1020;
  --panel: rgba(18, 24, 42, 0.78);
  --panel-strong: rgba(25, 34, 59, 0.92);
  --text: #f4f7ff;
  --muted: #aab6d6;
  --soft: #6f7fa6;
  --line: rgba(160, 184, 255, 0.18);
  --line-strong: rgba(160, 184, 255, 0.34);
  --blue: #8fb3ff;
  --cyan: #75f2ff;
  --green: #83ffbc;
  --red: #ff8f9f;
  --yellow: #ffd98a;
  --shadow: 0 21px 55px rgba(0, 0, 0, 0.42);
  --s-0: 8px;
  --s-1: 13px;
  --s-2: 21px;
  --s-3: 34px;
  --s-4: 55px;
  --s-5: 89px;
  --s-6: 144px;
  --measure-tight: 34ch;
  --measure: 55ch;
  --measure-wide: 89ch;
  --radius-sm: 13px;
  --radius-md: 21px;
  --radius-lg: 34px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 8% 10%, rgba(117, 242, 255, 0.20), transparent 34rem),
    radial-gradient(circle at 92% 14%, rgba(143, 179, 255, 0.25), transparent 36rem),
    radial-gradient(circle at 6% 62%, rgba(131, 255, 188, 0.08), transparent 28rem),
    radial-gradient(circle at 94% 72%, rgba(255, 143, 159, 0.10), transparent 30rem),
    linear-gradient(180deg, var(--bg), var(--bg-2) 48%, #06070d);
  color: var(--text);
  line-height: 1.62;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: var(--s-4) var(--s-4);
  mask-image: linear-gradient(to bottom, black, transparent 82%);
}

body::after {
  content: "";
  position: fixed;
  inset: 8vh 0 auto 0;
  height: 78vh;
  pointer-events: none;
  background:
    radial-gradient(ellipse at left center, rgba(117, 242, 255, 0.13), transparent 42%),
    radial-gradient(ellipse at right center, rgba(143, 179, 255, 0.15), transparent 42%);
  opacity: 0.75;
}

a {
  color: inherit;
}

p,
ul,
ol,
pre,
figure,
blockquote {
  margin: 0;
}

.noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.16;
  background-image: radial-gradient(circle at center, rgba(255,255,255,0.18) 0 1px, transparent 1px);
  background-size: 6px 6px;
  mix-blend-mode: overlay;
}

main,
.site-footer {
  position: relative;
  z-index: 1;
}

.page-flow {
  display: grid;
  gap: var(--s-4);
}

.shell {
  width: min(1680px, calc(100% - var(--s-2)));
  margin: 0 auto;
}

.phi-section {
  position: relative;
}

.phi-pair {
  display: grid;
  gap: var(--s-3);
  align-items: center;
}

.phi-pair-hero {
  grid-template-columns: minmax(0, 1.236fr) minmax(360px, 1fr);
}

.phi-pair-use {
  grid-template-columns: minmax(0, 1.45fr) minmax(320px, 1fr);
}

.copy-stack,
.section-stack {
  display: grid;
  gap: var(--s-2);
}

.copy-stack > p,
.section-stack > p {
  max-width: var(--measure);
}

.centered-copy {
  justify-items: center;
  text-align: center;
}

.topbar {
  display: flex;
  justify-content: flex-end;
  gap: var(--s-2);
  padding: var(--s-2) 0 var(--s-4);
}

.topbar a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
}

.topbar a:hover {
  color: var(--text);
}

.hero {
  min-height: 0;
  padding: 0 0 var(--s-3);
}

.hero-grid {
  align-items: center;
}

.kicker,
.section-label,
.tag {
  color: var(--cyan);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.02;
  letter-spacing: -0.055em;
}

h1 {
  max-width: 13.5ch;
  font-size: clamp(3.4rem, 7vw, 6.8rem);
  line-height: 0.9;
}

h1 span {
  color: transparent;
  background: linear-gradient(90deg, var(--cyan), var(--blue), var(--green));
  -webkit-background-clip: text;
  background-clip: text;
}

h2 {
  max-width: 16ch;
  font-size: clamp(2rem, 4vw, 4rem);
}

h3 {
  font-size: clamp(1.08rem, 1.4vw, 1.35rem);
  line-height: 1.18;
}

p,
li {
  color: var(--muted);
  font-size: clamp(0.98rem, 1vw, 1.04rem);
}

.lead {
  max-width: var(--measure);
  color: var(--text);
  font-size: clamp(1.18rem, 1.8vw, 1.55rem);
  line-height: 1.35;
}

.cta-row,
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-1);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--s-4);
  padding: 0 var(--s-2);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--text);
  text-decoration: none;
  font-weight: 800;
  background: rgba(255, 255, 255, 0.045);
  box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.button.primary {
  color: #04101a;
  border-color: transparent;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
}

.console {
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(12, 17, 31, 0.94), rgba(6, 9, 18, 0.94));
  box-shadow: var(--shadow);
  transform: rotate(0.5deg);
}

.console-bar {
  display: flex;
  align-items: center;
  gap: var(--s-0);
  padding: var(--s-1) var(--s-2);
  border-bottom: 1px solid var(--line);
  background: rgba(255,255,255,0.035);
}

.console-bar span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--red);
}

.console-bar span:nth-child(2) {
  background: var(--yellow);
}

.console-bar span:nth-child(3) {
  background: var(--green);
}

.console-bar strong {
  margin-left: auto;
  color: var(--soft);
  font-size: 0.8rem;
}

pre {
  padding: var(--s-3);
  white-space: pre-wrap;
}

code {
  color: #dce7ff;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.92rem;
}

.receipt {
  display: flex;
  justify-content: space-between;
  gap: var(--s-2);
  padding: var(--s-2);
  border-top: 1px solid var(--line);
  color: var(--soft);
  background: rgba(117, 242, 255, 0.055);
}

.receipt strong {
  color: var(--green);
}

.card-grid {
  display: grid;
  gap: var(--s-2);
}

.card-grid-five {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

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

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

.info-card,
.panel,
.tile,
.fit article,
.files,
.use {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--panel);
  box-shadow: 0 21px 55px rgba(0,0,0,0.22);
}

.info-card {
  display: grid;
  align-content: start;
  gap: var(--s-1);
  padding: var(--s-2);
}

.strip {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: var(--s-1);
  background: rgba(255,255,255,0.035);
  box-shadow: 0 30px 100px rgba(0,0,0,0.18);
}

.step-card {
  min-height: var(--s-6);
  border-radius: var(--radius-md);
  background: rgba(18, 24, 42, 0.72);
}

.step-card span {
  display: block;
  color: var(--cyan);
  font-weight: 900;
}

.step-card strong {
  display: block;
  color: var(--text);
  font-size: 1.05rem;
}

.step-card p {
  font-size: 0.94rem;
}

.problem {
  padding: var(--s-3) 0;
}

.problem h2,
.problem p {
  margin-inline: auto;
}

.problem p {
  max-width: var(--measure-wide);
  font-size: 1.13rem;
}

.panel-card {
  padding: var(--s-3);
}

.panel.danger {
  border-color: rgba(255, 143, 159, 0.28);
}

.panel.success {
  border-color: rgba(131, 255, 188, 0.28);
}

.panel.danger .tag {
  color: var(--red);
}

.panel.success .tag {
  color: var(--green);
}

ul {
  padding-left: 1.2rem;
}

li + li {
  margin-top: 0.42rem;
}

.bento-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.236fr) minmax(0, 1fr) minmax(0, 1fr);
  gap: var(--s-2);
}

.tile {
  min-height: 233px;
  padding: var(--s-3);
}

.tile.large {
  grid-row: span 2;
  min-height: 377px;
  justify-content: end;
  background:
    radial-gradient(circle at 20% 20%, rgba(117, 242, 255, 0.18), transparent 18rem),
    var(--panel-strong);
}

.tile.large h2 {
  font-size: clamp(2.2rem, 4.4vw, 4.6rem);
}

.icon {
  display: inline-flex;
  width: var(--s-4);
  height: var(--s-4);
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--line);
  font-size: 1.4rem;
}

.files,
.use {
  padding: var(--s-4);
}

.framed-section {
  background:
    radial-gradient(circle at 12% 20%, rgba(117, 242, 255, 0.13), transparent 26rem),
    radial-gradient(circle at 86% 70%, rgba(143, 179, 255, 0.12), transparent 24rem),
    var(--panel-strong);
}

.file-card {
  min-height: var(--s-6);
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.035);
}

.file-card code {
  display: inline-block;
  width: fit-content;
  padding: var(--s-0) var(--s-1);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(117, 242, 255, 0.055);
}

.use blockquote {
  padding: var(--s-3);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.045);
  color: var(--text);
  font-size: clamp(1.35rem, 2vw, 2rem);
  font-weight: 800;
  line-height: 1.2;
}

.site-footer {
  display: grid;
  justify-items: center;
  padding: 0 0 var(--s-4);
  color: var(--soft);
  text-align: center;
  font-size: 0.9rem;
}

.machine-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.45rem 0.7rem;
  color: var(--soft);
  font-size: 0.78rem;
}

.machine-links a {
  color: inherit;
  text-decoration: none;
}

.machine-links a:hover,
.machine-links a:focus-visible {
  color: var(--text);
  text-decoration: underline;
}

@media (max-width: 1180px) {
  .shell {
    width: min(100% - var(--s-3), 1180px);
  }

  .phi-pair,
  .phi-pair-hero,
  .phi-pair-use,
  .bento-grid,
  .card-grid-five,
  .card-grid-three,
  .card-grid-two {
    grid-template-columns: 1fr;
  }

  .tile.large {
    min-height: auto;
  }
}

@media (max-width: 720px) {
  .shell {
    width: min(100% - var(--s-2), 720px);
  }

  .topbar {
    flex-wrap: wrap;
    justify-content: center;
    padding-bottom: var(--s-3);
  }

  h1 {
    font-size: clamp(3rem, 16vw, 5rem);
  }

  h2 {
    font-size: clamp(1.9rem, 10vw, 3rem);
  }

  .console {
    transform: none;
  }

  .files,
  .use,
  .panel-card,
  .tile {
    padding: var(--s-2);
    border-radius: var(--radius-md);
  }

  .button {
    width: 100%;
  }
}