:root {
  --paper: oklch(0.95 0.02 85);
  --paper-deep: oklch(0.91 0.03 82);
  --ink: oklch(0.27 0.03 28);
  --ink-soft: oklch(0.43 0.03 32);
  --line: oklch(0.78 0.03 72);
  --accent-red: oklch(0.59 0.18 29);
  --accent-blue: oklch(0.52 0.1 243);
  --accent-gold: oklch(0.79 0.09 77);
  --surface: color-mix(in oklab, var(--paper) 78%, white 22%);
  --surface-strong: color-mix(in oklab, var(--paper-deep) 86%, white 14%);
  --shadow: 0 20px 60px rgba(73, 41, 20, 0.11);
  --radius: 1.6rem;
  --radius-tight: 0.8rem;
  --content: min(1140px, calc(100vw - 2.4rem));
  --serif: "Instrument Serif", "Times New Roman", serif;
  --sans: "Manrope", "Avenir Next", "Segoe UI", sans-serif;
  --ease: cubic-bezier(0.2, 0.9, 0.2, 1);
  --section-gap: clamp(4.5rem, 7vw, 8rem);
  --grid-gap: clamp(1rem, 2vw, 1.6rem);
  color-scheme: light;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(153, 43, 27, 0.08), transparent 28%),
    radial-gradient(circle at top right, rgba(54, 78, 135, 0.08), transparent 32%),
    linear-gradient(180deg, var(--paper) 0%, #f6f0e5 40%, #efe7d8 100%);
  min-height: 100vh;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.14;
  background-image:
    linear-gradient(rgba(120, 88, 44, 0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 88, 44, 0.09) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.55), transparent 85%);
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.16em;
}

img {
  max-width: 100%;
  display: block;
}

code,
pre {
  font-family:
    ui-monospace, "SFMono-Regular", "SF Mono", Menlo, Monaco, Consolas,
    "Liberation Mono", monospace;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  background: var(--ink);
  color: var(--paper);
  padding: 0.6rem 0.9rem;
  border-radius: 999px;
  z-index: 10;
}

.skip-link:focus {
  top: 1rem;
}

.page-shell {
  width: var(--content);
  margin: 0 auto;
  padding-bottom: 3rem;
  position: relative;
}

.page-shell::before {
  content: "";
  position: absolute;
  inset: 8rem -2rem auto;
  height: 24rem;
  background: radial-gradient(circle, rgba(166, 60, 45, 0.07), transparent 60%);
  filter: blur(24px);
  pointer-events: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 5;
  backdrop-filter: blur(14px);
  background:
    linear-gradient(180deg, rgba(243, 236, 223, 0.94), rgba(243, 236, 223, 0.66)),
    rgba(243, 236, 223, 0.72);
  border-bottom: 1px solid rgba(114, 87, 55, 0.12);
  box-shadow: 0 10px 30px rgba(73, 41, 20, 0.05);
}

.site-header::before {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-red), var(--accent-gold), var(--accent-blue));
  opacity: 0.55;
}

.site-header-inner {
  width: min(1340px, calc(100vw - 2rem));
  margin: 0 auto;
  min-height: 5.2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.8rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  text-decoration: none;
}

.brand-mark {
  width: 2.9rem;
  height: 2.9rem;
  display: grid;
  place-items: center;
  border-radius: 0.95rem;
  border: 2px solid color-mix(in oklab, var(--accent-red) 78%, white 22%);
  background:
    linear-gradient(180deg, rgba(255, 250, 243, 0.94), rgba(244, 233, 216, 0.9));
  color: var(--accent-red);
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: -0.05em;
  box-shadow: 0 8px 18px rgba(122, 67, 37, 0.08);
}

.brand-wordmark {
  display: inline-flex;
  align-items: baseline;
  gap: 0.12rem;
  line-height: 1;
}

.brand-name {
  font-size: 1.72rem;
  font-weight: 800;
  letter-spacing: -0.06em;
}

.brand-domain {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--ink-soft);
  letter-spacing: -0.03em;
}

.top-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.3rem;
  font-size: 0.9rem;
  padding: 0.35rem;
  border-radius: 999px;
  background: rgba(255, 251, 243, 0.62);
  border: 1px solid rgba(114, 87, 55, 0.12);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.45);
}

.top-nav a {
  text-decoration: none;
  color: var(--ink-soft);
  padding: 0.72rem 0.95rem;
  border-radius: 999px;
  transition:
    color 180ms var(--ease),
    background-color 180ms var(--ease),
    transform 180ms var(--ease);
}

.top-nav a.active,
.top-nav a:hover,
.top-nav a:focus-visible {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.72);
  transform: translateY(-1px);
}

.section {
  padding: clamp(4rem, 6vw, 7rem) 0;
  position: relative;
}

.section[id] {
  scroll-margin-top: 7rem;
}

.section + .section {
  border-top: 1px solid rgba(114, 87, 55, 0.14);
}

.hero {
  min-height: calc(100vh - 5rem);
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: clamp(1.4rem, 4vw, 3rem);
  padding-top: clamp(2.8rem, 7vw, 5rem);
}

.eyebrow {
  margin: 0 0 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent-red);
}

h1,
h2,
h3 {
  margin: 0;
  text-wrap: balance;
}

h1 {
  font-family: var(--serif);
  font-size: clamp(3.5rem, 9vw, 7.4rem);
  line-height: 0.92;
  max-width: 11ch;
  letter-spacing: -0.04em;
}

h2 {
  font-family: var(--serif);
  font-size: clamp(2.2rem, 5vw, 4rem);
  line-height: 0.98;
  letter-spacing: -0.035em;
  max-width: 12ch;
}

h3 {
  font-size: clamp(1.3rem, 2vw, 1.7rem);
  line-height: 1.08;
}

.lede,
.hero-copy p,
.skill-content p,
.install-copy p,
.faq-list p,
.footer-copy {
  color: var(--ink-soft);
  line-height: 1.65;
}

.lede {
  font-size: clamp(1.08rem, 1.8vw, 1.36rem);
  max-width: 37rem;
  margin: 1rem 0 0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 1.8rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.2rem;
  padding: 0 1.2rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  transition:
    transform 180ms var(--ease),
    background-color 180ms var(--ease),
    color 180ms var(--ease),
    border-color 180ms var(--ease);
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.button-primary {
  background: var(--accent-red);
  color: #fff8f2;
}

.button-secondary {
  border: 1px solid rgba(107, 74, 39, 0.22);
  color: var(--ink);
  background: rgba(255, 252, 245, 0.54);
}

.works-with {
  margin-top: 1.6rem;
  display: grid;
  gap: 0.7rem;
}

.works-with > span {
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.works-with ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  padding: 0;
  margin: 0;
}

.works-with li {
  border: 1px solid rgba(109, 82, 46, 0.16);
  border-radius: 999px;
  padding: 0.5rem 0.85rem;
  font-size: 0.92rem;
  background: rgba(255, 251, 242, 0.62);
}

.hero-art {
  display: grid;
  align-items: center;
  justify-items: end;
  position: relative;
  min-height: 36rem;
}

.mail-card {
  width: min(100%, 30rem);
  background: linear-gradient(180deg, rgba(255, 253, 248, 0.92), rgba(246, 238, 223, 0.9));
  border: 1px solid rgba(118, 84, 42, 0.18);
  border-radius: 1.6rem;
  padding: 1.4rem;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
  transform-origin: center;
  transition:
    transform 500ms var(--ease),
    box-shadow 300ms var(--ease),
    border-color 300ms var(--ease);
}

.mail-card::before,
.mail-card::after {
  content: "";
  position: absolute;
  border-radius: 999px;
  border: 1px dashed rgba(162, 51, 35, 0.24);
  pointer-events: none;
}

.card-offset {
  width: min(78%, 18rem);
  margin-top: -3rem;
  margin-right: 1rem;
  transform: rotate(-7deg);
  position: absolute;
  right: 1rem;
  bottom: 0;
  z-index: 3;
}

.stamp {
  display: inline-flex;
  padding: 0.35rem 0.65rem;
  border: 1px solid rgba(154, 47, 31, 0.42);
  color: var(--accent-red);
  border-radius: 0.4rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.7rem;
  font-weight: 800;
}

.card-kicker,
.mini-label,
.comparison-label,
.command-label,
.prompt-label,
.example-title {
  margin: 1rem 0 0.45rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.72rem;
  font-weight: 800;
  color: var(--ink-soft);
}

.card-title {
  font-family: var(--serif);
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 0.98;
  letter-spacing: -0.04em;
  margin: 0;
  max-width: 10ch;
}

.specimen-note {
  margin: 1.1rem 0 0;
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: color-mix(in oklab, var(--accent-blue) 40%, var(--ink-soft));
}

.mail-collage {
  width: min(100%, 34rem);
  position: relative;
  display: grid;
  place-items: center;
}

.card-envelope {
  width: 88%;
  min-height: 13rem;
  justify-self: start;
  margin-left: 0.25rem;
  transform: rotate(-9deg) translateY(3rem);
  background:
    linear-gradient(145deg, rgba(243, 232, 212, 0.9), rgba(232, 218, 195, 0.95));
}

.card-letter {
  width: 100%;
  min-height: 25rem;
  position: relative;
  z-index: 2;
  transform: rotate(3deg);
}

.hero-asset {
  position: absolute;
  pointer-events: none;
}

.hero-postmark {
  width: 13rem;
  top: 0;
  right: -2rem;
  opacity: 0.32;
  mix-blend-mode: multiply;
}

.hero-registration {
  width: 7rem;
  left: -1rem;
  bottom: 3rem;
  opacity: 0.8;
}

.card-note,
.mini-copy,
.command-help {
  margin: 0.9rem 0 0;
  color: var(--ink-soft);
  line-height: 1.55;
}

.mini-title {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 800;
}

.numbered .section-heading {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.2rem;
  align-items: start;
  margin-bottom: 1.7rem;
}

.section-number {
  width: 3rem;
  height: 3rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(161, 52, 35, 0.09);
  color: var(--accent-red);
  font-weight: 800;
}

.comparison-grid,
.skill-pair,
.install-layout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--grid-gap);
}

.comparison-card,
.framework-panel,
.skill-card,
.example-card,
.command-block,
.faq-list details {
  background: rgba(255, 251, 243, 0.74);
  border: 1px solid rgba(120, 89, 46, 0.14);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.framework-panel,
.command-block,
.faq-list details {
  backdrop-filter: blur(6px);
}

.comparison-card {
  padding: 1.5rem;
  position: relative;
}

.comparison-card.before {
  background: linear-gradient(180deg, rgba(249, 243, 232, 0.9), rgba(243, 235, 221, 0.84));
}

.comparison-card.after {
  background: linear-gradient(180deg, rgba(255, 251, 243, 0.94), rgba(247, 241, 230, 0.92));
  border-color: rgba(159, 48, 32, 0.22);
  transform: rotate(1.2deg);
}

.comparison-card.before {
  transform: rotate(-1.2deg);
}

.comparison-showcase {
  align-items: stretch;
}

.comparison-mark {
  position: absolute;
  width: 9rem;
  right: 0.6rem;
  top: 0.4rem;
  opacity: 0.18;
  mix-blend-mode: multiply;
}

.approved-badge {
  margin: 1rem 0 0;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-red);
}

.comparison-track {
  margin-top: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.85rem;
  color: var(--ink-soft);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.track-line {
  flex: 1;
  height: 2px;
  position: relative;
  background: linear-gradient(90deg, rgba(124, 90, 51, 0.2), rgba(166, 60, 45, 0.7), rgba(59, 94, 152, 0.75));
  overflow: hidden;
}

.track-line::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 250, 244, 0.95), transparent);
  animation: sweep 3.2s var(--ease) infinite;
}

.comparison-card ul,
.skill-card ul,
.install-notes {
  margin: 1rem 0 0;
  padding-left: 1.1rem;
  color: var(--ink-soft);
  line-height: 1.7;
}

.framework-panel {
  padding: 1.5rem;
  display: grid;
  gap: 1.3rem;
}

.orchestrator {
  padding: 1rem 1rem 1.2rem;
  border-radius: 1.2rem;
  background:
    linear-gradient(135deg, rgba(163, 48, 33, 0.08), transparent 56%),
    rgba(244, 236, 222, 0.7);
  border: 1px solid rgba(119, 89, 49, 0.12);
}

.phase-grid,
.example-grid {
  display: grid;
  gap: var(--grid-gap);
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.phase-card,
.example-card {
  padding: 1.15rem;
}

.phase-card span {
  display: inline-block;
  font-weight: 800;
  font-size: 1rem;
  margin-bottom: 0.65rem;
}

.phase-card p {
  margin: 0;
  color: var(--ink-soft);
  line-height: 1.55;
}

.skill-stack {
  display: grid;
  gap: var(--grid-gap);
}

.skill-card {
  padding: 1.5rem;
  display: grid;
  gap: 1.2rem;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  background:
    linear-gradient(180deg, rgba(255, 251, 243, 0.84), rgba(247, 241, 230, 0.88));
}

.skill-card:hover,
.skill-card:focus-within {
  transform: translateY(-4px) rotate(-0.35deg);
  border-color: rgba(166, 60, 45, 0.28);
}

.skill-featured {
  background:
    radial-gradient(circle at top right, rgba(167, 53, 36, 0.08), transparent 28%),
    rgba(255, 251, 243, 0.86);
}

.skill-role {
  margin-top: 0.75rem;
}

pre {
  margin: 0.75rem 0 0;
  white-space: pre-wrap;
  background: rgba(93, 63, 33, 0.06);
  border-radius: 1rem;
  padding: 1rem;
  border: 1px solid rgba(120, 90, 46, 0.12);
  color: color-mix(in oklab, var(--ink) 86%, black 14%);
  font-size: 0.94rem;
  line-height: 1.55;
}

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

.install-layout {
  align-items: start;
}

.command-block {
  padding: 1.35rem;
  background:
    linear-gradient(145deg, rgba(255, 253, 249, 0.98), rgba(244, 236, 223, 0.94));
}

.command-row {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  flex-wrap: wrap;
}

.command-row code {
  flex: 1 1 20rem;
  min-height: 3.25rem;
  display: inline-flex;
  align-items: center;
  padding: 0.9rem 1rem;
  border-radius: 1rem;
  background: rgba(92, 63, 36, 0.06);
  border: 1px solid rgba(117, 88, 48, 0.14);
  overflow-wrap: anywhere;
}

.copy-button {
  min-height: 3.25rem;
  padding: 0 1rem;
  border: 1px solid rgba(122, 90, 49, 0.16);
  border-radius: 999px;
  background: white;
  color: var(--ink);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  transition:
    transform 180ms var(--ease),
    background-color 180ms var(--ease);
}

.copy-button:hover,
.copy-button:focus-visible {
  transform: translateY(-1px);
}

.copy-button.is-copied {
  background: var(--accent-red);
  color: #fff7f2;
}

.install-perforation {
  width: min(100%, 38rem);
  margin-top: 1.5rem;
  opacity: 0.7;
}

.faq-list {
  display: grid;
  gap: 0.9rem;
}

.faq-list details {
  padding: 1rem 1.15rem;
}

.faq-list summary {
  cursor: pointer;
  font-weight: 700;
  list-style: none;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list p {
  margin: 0.85rem 0 0;
}

.site-footer {
  border-top: 1px solid rgba(119, 86, 46, 0.14);
  padding: 2.6rem 0 1rem;
  display: grid;
  gap: 0.7rem;
}

.footer-brand {
  margin: 0;
  font-family: var(--serif);
  font-size: 2rem;
}

.footer-copy {
  margin: 0;
  max-width: 44rem;
}

.footer-links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.js [data-reveal] {
  opacity: 0;
  transform: translateY(28px) rotate(0.35deg);
  transition:
    opacity 700ms var(--ease),
    transform 700ms var(--ease);
}

.js [data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes sweep {
  from {
    transform: translateX(-120%);
  }
  to {
    transform: translateX(140%);
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: oklch(0.18 0.015 65);
    --paper-deep: oklch(0.15 0.02 62);
    --ink: oklch(0.91 0.01 80);
    --ink-soft: oklch(0.76 0.015 70);
    --line: oklch(0.34 0.02 65);
    --surface: color-mix(in oklab, var(--paper) 88%, black 12%);
    --surface-strong: color-mix(in oklab, var(--paper-deep) 88%, black 12%);
    --shadow: 0 24px 80px rgba(0, 0, 0, 0.4);
    color-scheme: dark;
  }

  body {
    background:
      radial-gradient(circle at top left, rgba(166, 60, 45, 0.12), transparent 28%),
      radial-gradient(circle at top right, rgba(59, 94, 152, 0.14), transparent 34%),
      linear-gradient(180deg, #181512 0%, #12100e 45%, #0d0c0b 100%);
  }

  .site-header {
    background: linear-gradient(180deg, rgba(24, 21, 18, 0.9), rgba(24, 21, 18, 0.54));
    border-bottom-color: rgba(255, 245, 232, 0.08);
  }

  .button-secondary,
  .top-nav,
  .comparison-card,
  .framework-panel,
  .skill-card,
  .example-card,
  .command-block,
  .faq-list details,
  .mail-card {
    background: rgba(36, 30, 26, 0.88);
  }

  .orchestrator,
  .command-row code,
  pre,
  .card-envelope {
    background: rgba(44, 37, 32, 0.9);
  }

  .top-nav a.active,
  .top-nav a:hover,
  .top-nav a:focus-visible {
    background: rgba(255, 248, 239, 0.08);
  }

  .brand-logo {
    filter: brightness(1.05) drop-shadow(0 2px 10px rgba(0, 0, 0, 0.25));
  }

  .brand-mark {
    background: rgba(39, 33, 29, 0.92);
    box-shadow: 0 10px 22px rgba(0, 0, 0, 0.28);
  }

  .brand-domain {
    color: var(--ink-soft);
  }

  .comparison-mark,
  .hero-postmark {
    mix-blend-mode: screen;
    opacity: 0.24;
  }
}

@media (max-width: 1080px) {
  .hero,
  .skill-card,
  .skill-pair,
  .install-layout,
  .comparison-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    gap: clamp(1.5rem, 4vw, 2.4rem);
    padding-top: clamp(1.6rem, 4vw, 2.4rem);
  }

  .hero-art {
    justify-items: center;
    min-height: 26rem;
  }

  .card-offset {
    right: 0;
    bottom: -1rem;
  }

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

@media (max-width: 760px) {
  .page-shell {
    width: min(calc(100vw - 1.2rem), 100%);
    overflow-x: hidden;
  }

  .page-shell::before {
    inset-inline: 0;
  }

  .site-header {
    position: sticky;
    top: 0;
    background:
      linear-gradient(180deg, rgba(243, 236, 223, 0.94), rgba(243, 236, 223, 0.82)),
      rgba(243, 236, 223, 0.88);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(114, 87, 55, 0.1);
    box-shadow: 0 10px 28px rgba(73, 41, 20, 0.05);
  }

  .site-header-inner {
    width: min(calc(100vw - 1.2rem), 100%);
    flex-direction: column;
    align-items: stretch;
    min-height: auto;
    gap: 0.7rem;
    padding: 0.7rem 0 0.8rem;
  }

  .brand {
    gap: 0.68rem;
  }

  .brand-mark {
    width: 2.65rem;
    height: 2.65rem;
    border-radius: 0.9rem;
    font-size: 0.88rem;
  }

  .brand-wordmark {
    gap: 0.06rem;
  }

  .brand-name {
    font-size: 1.42rem;
  }

  .brand-domain {
    font-size: 0.94rem;
  }

  .top-nav {
    width: 100%;
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 0.35rem;
    font-size: 0.88rem;
    padding: 0.25rem;
    overflow-x: visible;
    max-width: 100%;
    border-radius: 1rem;
  }

  .top-nav::-webkit-scrollbar {
    display: none;
  }

  .top-nav a {
    flex: 0 0 auto;
    white-space: nowrap;
    padding: 0.78rem 0.9rem;
  }

  .hero {
    gap: 1.4rem;
    padding-top: 1.25rem;
  }

  h1 {
    font-size: clamp(2.95rem, 16vw, 4.2rem);
    max-width: 7ch;
  }

  .lede {
    font-size: 1rem;
    max-width: 31rem;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .button {
    width: 100%;
    min-height: 3.35rem;
  }

  .works-with {
    gap: 0.6rem;
  }

  .works-with ul {
    gap: 0.45rem;
  }

  .works-with li {
    padding: 0.5rem 0.72rem;
    font-size: 0.84rem;
  }

  .numbered .section-heading {
    grid-template-columns: 1fr;
    gap: 0.75rem;
    margin-bottom: 1.2rem;
  }

  .section-number {
    width: 2.6rem;
    height: 2.6rem;
  }

  .hero-art {
    min-height: 22rem;
    overflow: hidden;
  }

  .mail-collage {
    width: min(100%, 21rem);
    margin-inline: auto;
  }

  .phase-grid,
  .example-grid {
    grid-template-columns: 1fr;
  }

  .mail-card {
    width: 100%;
    padding: 1.05rem;
    border-radius: 1.2rem;
  }

  .card-envelope {
    width: 86%;
    min-height: 9.75rem;
    margin-left: 0;
    transform: rotate(-4deg) translateY(1.1rem);
  }

  .card-letter {
    min-height: 19rem;
    transform: rotate(1deg);
  }

  .card-title {
    font-size: clamp(1.8rem, 9vw, 2.4rem);
    max-width: 9ch;
  }

  .card-offset {
    width: min(72%, 12.5rem);
    right: 0;
    bottom: -0.6rem;
    margin-top: 0;
    transform: rotate(-4deg);
  }

  .hero-postmark {
    width: 8.5rem;
    right: 0;
    top: -0.5rem;
  }

  .hero-registration {
    width: 4.5rem;
    left: 0;
    bottom: 2rem;
  }

  .comparison-card,
  .framework-panel,
  .skill-card,
  .example-card,
  .command-block,
  .faq-list details {
    border-radius: 1.2rem;
  }

  .comparison-card,
  .framework-panel,
  .skill-card,
  .example-card,
  .command-block {
    padding: 1.15rem;
  }

  .comparison-card.before,
  .comparison-card.after {
    transform: none;
  }

  .comparison-mark {
    width: 6.4rem;
    right: 0.4rem;
    top: 0.4rem;
  }

  .comparison-track {
    font-size: 0.72rem;
    gap: 0.55rem;
  }

  .skill-card {
    gap: 1rem;
  }

  pre {
    font-size: 0.88rem;
    padding: 0.85rem;
  }

  .command-row {
    flex-direction: column;
    align-items: stretch;
    gap: 0.65rem;
  }

  .command-row code {
    flex-basis: auto;
    min-height: auto;
    padding: 0.85rem 0.9rem;
  }

  .copy-button {
    width: 100%;
  }

  .faq-list details {
    padding: 0.95rem 1rem;
  }

  .section {
    padding: 3.25rem 0;
  }

  .section[id] {
    scroll-margin-top: 8.75rem;
  }
}

@media (max-width: 420px) {
  .brand-name {
    font-size: 1.28rem;
  }

  .brand-domain {
    font-size: 0.86rem;
  }

  .top-nav a {
    padding-inline: 0.82rem;
  }

  .works-with li {
    font-size: 0.8rem;
  }

  .comparison-track {
    letter-spacing: 0.08em;
  }
}

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

  *,
  *::before,
  *::after {
    animation: none !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0ms !important;
  }

  .js [data-reveal] {
    opacity: 1;
    transform: none;
  }
}