@charset "UTF-8";
:root {
  --paper: #f6f5ef;
  --ink: #272c26;
  --muted: #64695f;
  --line: #dcded3;
  --orange: #bd4b2d;
  --green: #566b46;
  --soft-green: #edf0e6;
  --white: #fffefa;
  --mono: Consolas, "SFMono-Regular", monospace;
  --sans: "Inter", "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 28px;
}
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
}
button {
  font: inherit;
  color: inherit;
  cursor: pointer;
}
button,
a,
summary {
  -webkit-tap-highlight-color: transparent;
}
button:focus-visible,
a:focus-visible,
summary:focus-visible,
[tabindex="0"]:focus-visible {
  outline: 3px solid var(--orange);
  outline-offset: 5px;
}
::selection {
  background: #f2d9b9;
  color: var(--ink);
}
h1,
h2,
h3,
p {
  margin: 0;
}
.wrap {
  width: min(1180px, calc(100% - 96px));
  margin-inline: auto;
}
.skip-link {
  position: fixed;
  top: -100px;
  left: 16px;
  background: var(--ink);
  color: white;
  padding: 12px 20px;
  z-index: 10;
}
.skip-link:focus {
  top: 12px;
}
.header {
  height: 102px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  gap: 40px;
}
.brand {
  display: inline-flex;
  align-items: center;
  font-size: 25px;
  line-height: 1;
  font-weight: 750;
  letter-spacing: -1.2px;
}
.brand-os {
  font-weight: 400;
  margin-left: 5px;
}
.brand-dot {
  color: var(--orange);
}
.brand-mark {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 12px;
  background: var(--ink);
  color: var(--paper);
  border-radius: 7px;
  font-size: 23px;
  letter-spacing: -5px;
  padding-right: 5px;
}
.brand-mark span {
  color: #d5bc81;
  font-size: 17px;
  transform: translateY(5px);
}
.header nav {
  display: flex;
  gap: 32px;
  margin-left: auto;
  font-size: 13px;
}
.header nav a,
.footer a,
.text-link {
  transition: color 0.18s ease;
}
.header nav a:hover,
.footer a:hover,
.text-link:hover {
  color: var(--orange);
}
.repo-link {
  border: 1px solid #b5b9aa;
  padding: 6px 16px;
  font-size: 13px;
  border-radius: 5px;
  display: flex;
  gap: 16px;
  align-items: center;
}
.repo-link:hover {
  background: var(--soft-green);
}
.hero {
  display: grid;
  grid-template-columns: 1.03fr 1fr;
  gap: 44px;
  align-items: center;
  padding-top: 72px;
  padding-bottom: 67px;
}
.eyebrow {
  font-family: var(--mono);
  letter-spacing: 1.7px;
  font-size: 11px;
  font-weight: 500;
  line-height: 1.6;
  display: flex;
  gap: 10px;
  align-items: center;
}
.status-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--green);
  border-radius: 50%;
  flex-shrink: 0;
}
h1 {
  font-size: clamp(42px, 4.5vw, 61px);
  letter-spacing: -2.5px;
  line-height: 1.36;
  margin-top: 26px;
  font-weight: 750;
}
h1 > span {
  color: var(--orange);
}
.hero-description {
  font-size: 16px;
  color: var(--muted);
  line-height: 1.95;
  margin-top: 24px;
}
.hero-actions {
  display: flex;
  align-items: center;
  gap: 25px;
  margin-top: 32px;
}
.button {
  display: inline-flex;
  justify-content: space-between;
  align-items: center;
  gap: 30px;
  padding: 14px 20px;
  border-radius: 5px;
  font-size: 13px;
  font-weight: 600;
  transition:
    background 0.18s ease,
    transform 0.18s ease;
}
.button-dark {
  color: var(--white);
  background: var(--ink);
}
.button-dark:hover {
  background: #43503d;
  transform: translateY(-2px);
}
.button span {
  font-size: 19px;
  line-height: 1;
}
.text-link {
  font-size: 13px;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  white-space: nowrap;
}
.hero-meta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 23px;
  font-size: 10px;
  color: var(--muted);
}
.hero-meta span + span::before {
  content: "/";
  color: #b1b5a7;
  margin-right: 16px;
}
.hero-art {
  height: 500px;
  position: relative;
  isolation: isolate;
}
.art-caption,
.art-footer {
  position: absolute;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 1px;
  color: #666f60;
}
.art-caption {
  top: 0;
  justify-content: flex-start;
  gap: 12px;
}
.crosshair {
  font-size: 22px;
  font-weight: 300;
  color: var(--orange);
}
.desk-grid {
  position: absolute;
  inset: 42px 0 44px;
  z-index: -2;
  background-image: radial-gradient(#c8cbbb 0.75px, transparent 0.75px);
  background-size: 16px 16px;
  mask-image: linear-gradient(
    90deg,
    transparent,
    #000 12%,
    #000 85%,
    transparent
  );
}
.back-sheet {
  position: absolute;
  top: 63px;
  left: 36px;
  right: 55px;
  height: 285px;
  padding: 24px;
  background: #edece1;
  border: 1px solid #d8dbcc;
  transform: rotate(-7deg);
  color: #73806b;
  font-family: var(--mono);
  font-size: 11px;
  box-shadow: 0 2px 4px #30362604;
}
.paper-lines {
  margin-top: 24px;
  height: 64px;
  background: repeating-linear-gradient(transparent 0 15px, #d6d8cb 15px 16px);
}
.source-note {
  display: block;
  margin-top: 24px;
}
.front-sheet {
  position: absolute;
  top: 128px;
  left: 47px;
  right: 8px;
  background: var(--white);
  border: 1px solid #d4d8c9;
  box-shadow: 0 16px 26px #31392c0c;
  transform: rotate(3deg);
}
.sheet-header {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  padding: 13px 18px;
  border-bottom: 1px solid #e5e7de;
  font-family: var(--mono);
  font-size: 10px;
}
.sheet-header > span:first-child {
  display: flex;
  align-items: center;
  gap: 8px;
}
.file-icon {
  display: inline-block;
  width: 12px;
  height: 15px;
  border: 1px solid #8d9882;
  border-radius: 1px;
  flex-shrink: 0;
  position: relative;
}
.file-icon:after {
  content: "";
  position: absolute;
  width: 5px;
  height: 4px;
  border-left: 1px solid #8d9882;
  border-bottom: 1px solid #8d9882;
  top: -1px;
  right: -1px;
  background: var(--white);
}
.tiny-pill {
  padding: 1px 6px;
  border: 1px solid #d4ddcb;
  border-radius: 3px;
  color: var(--green);
  font-family: var(--sans);
  font-size: 9px;
  white-space: nowrap;
}
.sheet-body {
  padding: 24px 25px 17px;
}
.document-kicker {
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 1.6px;
  color: var(--muted);
}
.sheet-body h2 {
  font-family: "Songti SC", "STSong", "SimSun", serif;
  font-size: 27px;
  line-height: 1.55;
  margin-top: 10px;
  letter-spacing: 1px;
}
.sheet-body p {
  font-size: 10px;
  color: var(--muted);
  margin-top: 11px;
  line-height: 1.9;
}
.document-rule {
  height: 1px;
  background: var(--line);
  margin-top: 12px;
}
.document-bottom {
  font-size: 8px;
  color: #777e70;
  margin-top: 13px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.document-bottom b {
  font-weight: 500;
  color: var(--orange);
}
.document-bottom > span:last-child {
  color: var(--orange);
  font-size: 20px;
  line-height: 1;
}
.feedback-note {
  position: absolute;
  right: 0;
  top: 35px;
  display: flex;
  gap: 13px;
  align-items: center;
  transform: rotate(4deg);
  padding: 13px 20px;
  background: #e7ebdb;
  border: 1px solid #cbd4bb;
  box-shadow: 0 4px 8px #30362605;
}
.note-symbol {
  font-size: 35px;
  font-weight: 300;
  line-height: 1;
  color: var(--green);
}
.feedback-note strong {
  display: block;
  font-size: 11px;
  font-weight: 600;
}
.feedback-note div > span {
  display: block;
  font-size: 9px;
  color: var(--muted);
  margin-top: 3px;
}
.art-footer {
  bottom: 0;
  font-size: 8px;
  letter-spacing: 0.5px;
}
.art-footer > span:first-child {
  display: flex;
  align-items: center;
  gap: 8px;
}
.context-strip {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-block: 1px solid var(--line);
  padding-block: 21px;
  color: var(--muted);
  font-size: 12px;
  gap: 20px;
}
.context-strip > div {
  display: flex;
  gap: 27px;
  font-size: 11px;
}
.context-strip > div > span::before {
  content: "✳";
  color: #9b9f8c;
  margin-right: 9px;
}
.section {
  padding-block: 83px;
}
.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 28px;
}
.section h2,
.workflow-section h2,
.faq-section h2,
.closing h2 {
  font-size: 29px;
  letter-spacing: -0.9px;
  line-height: 1.5;
  font-weight: 650;
  margin-top: 15px;
}
.section-heading > p {
  font-size: 12px;
  line-height: 1.9;
  color: var(--muted);
}
.principles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 44px;
}
.principle {
  padding-right: 38px;
}
.principle + .principle {
  border-left: 1px solid var(--line);
  padding-left: 38px;
}
.principle:last-child {
  padding-right: 0;
}
.principle-art {
  height: 139px;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.evidence-art {
  flex-direction: column;
  align-items: flex-start;
  padding-left: 22px;
  font-size: 11px;
}
.mini-source {
  border: 1px solid #c9cebf;
  padding: 8px 16px;
  background: #f9f9f4;
  display: flex;
  justify-content: space-between;
  gap: 46px;
  min-width: 187px;
}
.mini-source b {
  font-size: 14px;
  font-weight: 400;
  color: var(--green);
}
.connector {
  margin-left: 29px;
  color: #859177;
  line-height: 1.6;
}
.source-result {
  margin-left: 32px;
  background: #e9eddf;
  transform: rotate(-3deg);
}
.files-art {
  flex-direction: column;
  align-items: stretch;
  gap: 7px;
  padding: 9px 23px;
  font: 11px var(--mono);
}
.files-art > span {
  display: flex;
  justify-content: space-between;
  padding: 9px 13px;
  background: #efefe6;
  border: 1px solid #d8ddcd;
  transform: rotate(-3deg);
}
.files-art > span:nth-child(2) {
  transform: translateX(7px);
}
.files-art > span:nth-child(3) {
  transform: rotate(3deg);
}
.files-art i {
  font-style: normal;
  color: var(--green);
}
.voice-art {
  display: grid;
  grid-template-columns: auto 38px auto;
  column-gap: 10px;
  row-gap: 12px;
  padding: 12px 15px;
  align-content: center;
  text-align: center;
  font-size: 10px;
}
.voice-art > span:not(.voice-loop) {
  border-bottom: 1px dashed #a6af96;
  padding-bottom: 4px;
}
.voice-loop {
  font-size: 42px;
  color: var(--orange);
  line-height: 1;
}
.voice-art > b {
  font-size: 11px;
  grid-column: 1/-1;
  font-weight: 500;
  background: #ececdd;
  padding: 8px 22px;
  justify-self: center;
}
.small-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 1px;
  color: var(--muted);
}
.principle h3 {
  font-size: 19px;
  font-weight: 650;
  margin-top: 11px;
  margin-bottom: 12px;
  letter-spacing: -0.3px;
}
.principle p {
  font-size: 12px;
  line-height: 1.95;
  color: var(--muted);
}
.workflow-section {
  padding-block: 78px;
  background: #eaece2;
  border-block: 1px solid #d8ddcf;
}
.workflow-intro {
  font-size: 12px;
  color: var(--muted);
  margin-top: 20px;
}
.workflow-explorer {
  display: grid;
  grid-template-columns: 310px 1fr;
  margin-top: 32px;
  border: 1px solid #c9d0bd;
  background: var(--paper);
}
.stage-list {
  border-right: 1px solid #c9d0bd;
  background: #e3e7d9;
  padding: 15px;
}
.stage {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 17px;
  padding: 12px 14px;
  border: 1px solid transparent;
  background: transparent;
  text-align: left;
  font-size: 12px;
  border-radius: 3px;
  transition: background 0.18s ease;
}
.stage:hover {
  background: #f1f2ea;
}
.stage[aria-selected="true"] {
  background: var(--white);
  border-color: #cbd2be;
  box-shadow: 0 2px 3px #2c392106;
}
.stage-number {
  font-family: var(--mono);
  font-size: 11px;
  color: #727d65;
}
.stage small {
  font-size: 8px;
  color: var(--muted);
  border: 1px solid #aeb6a3;
  padding-inline: 4px;
  line-height: 1.7;
}
.stage-arrow {
  margin-left: auto;
  color: #969e8b;
}
.stage[aria-selected="true"] .stage-number,
.stage[aria-selected="true"] .stage-arrow {
  color: var(--orange);
}
.stage-panel {
  padding: 32px 43px;
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.panel-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.panel-index {
  font-family: var(--mono);
  font-size: 41px;
  color: #c5ccb7;
  letter-spacing: -2px;
  line-height: 1;
}
.stage-panel h3 {
  font-size: 26px;
  font-weight: 600;
  line-height: 1.5;
  margin-top: 21px;
  letter-spacing: -0.5px;
}
.stage-panel > p {
  font-size: 13px;
  line-height: 1.9;
  color: var(--muted);
  max-width: 510px;
  margin-top: 15px;
}
.artifact {
  background: var(--white);
  border: 1px solid #daddcf;
  margin-top: 27px;
  padding: 18px 22px;
}
.artifact > div {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 9px;
}
.artifact code {
  font-family: var(--mono);
  font-size: 14px;
  overflow-wrap: anywhere;
}
.artifact p {
  font-size: 11px;
  color: var(--muted);
  margin-top: 8px;
  line-height: 1.8;
}
.panel-foot {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  color: var(--green);
  margin-top: auto;
  padding-top: 24px;
}
.feedback-line {
  display: flex;
  align-items: center;
  gap: 20px;
  padding-top: 21px;
  font-size: 11px;
  color: var(--muted);
}
.feedback-line > span {
  font-size: 26px;
  color: var(--green);
}
.feedback-line strong {
  font-weight: 600;
  color: var(--ink);
}
.feedback-line a {
  margin-left: auto;
  font-size: 20px;
  padding: 5px;
}
.start-section {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 90px;
  padding-block: 91px 72px;
}
.start-section h2 {
  font-size: 43px;
  line-height: 1.4;
  margin-top: 24px;
}
.start-copy > p:not(.eyebrow) {
  font-size: 13px;
  line-height: 1.95;
  color: var(--muted);
  margin-top: 22px;
}
.start-copy .text-link {
  margin-top: 27px;
  border-bottom: 1px solid #adb79f;
  padding-bottom: 5px;
}
.requirements {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 35px;
  max-width: 280px;
}
.requirements > span {
  font-family: var(--mono);
  border: 1px solid var(--line);
  font-size: 9px;
  padding: 3px 7px;
  border-radius: 3px;
  color: var(--muted);
}
.start-step + .start-step {
  margin-top: 27px;
}
.start-copy,
.start-steps {
  min-width: 0;
}
.step-title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}
.step-title > span {
  font: 10px var(--mono);
  width: 23px;
  height: 23px;
  border: 1px solid #bdc6ae;
  border-radius: 50%;
  display: grid;
  place-items: center;
}
.step-title h3 {
  font-size: 14px;
  font-weight: 600;
}
.terminal {
  background: #2b322a;
  color: #e1e6d6;
  border: 1px solid #2b322a;
  border-radius: 5px;
  overflow: hidden;
}
.terminal-bar {
  border-bottom: 1px solid #434a3c;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 15px;
  font: 10px var(--mono);
}
.copy-button {
  border: 1px solid #a5af95;
  background: transparent;
  border-radius: 3px;
  font-size: 10px;
  line-height: 1.5;
  padding: 5px 9px;
  min-height: 30px;
}
.copy-button:hover {
  background: #87947722;
}
.terminal .copy-button {
  border-color: #647058;
  color: #e1e6d6;
}
.terminal pre {
  overflow-x: auto;
  padding: 18px;
  margin: 0;
  font: 11px/2 var(--mono);
  tab-size: 2;
}
.start-step > p {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.9;
  padding-left: 35px;
}
.start-step > p code {
  font-size: 11px;
  overflow-wrap: anywhere;
}
.prompt-box {
  padding: 17px 20px;
  border: 1px solid #d4d9c8;
  background: #eeefe5;
  border-radius: 4px;
}
.prompt-box > p {
  font-size: 12px;
  color: #4f5b43;
  line-height: 1.9;
}
.prompt-box .copy-button {
  margin-top: 13px;
  color: #4f5b43;
}
.copy-status {
  font-size: 11px;
  color: var(--green);
  min-height: 21px;
  margin-top: 10px;
}
.faq-section {
  border-top: 1px solid var(--line);
  padding-block: 58px 68px;
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 90px;
}
.faq-section h2 {
  font-size: 23px;
}
.faq-list details {
  border-bottom: 1px solid var(--line);
}
.faq-list summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  list-style: none;
  padding: 18px 0;
  font-size: 13px;
  cursor: pointer;
}
.faq-list summary::-webkit-details-marker {
  display: none;
}
.faq-list summary > span {
  color: #899377;
  font-size: 21px;
  line-height: 1;
  transition: transform 0.18s ease;
}
.faq-list details[open] summary > span {
  transform: rotate(45deg);
}
.faq-list details p {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.9;
  padding: 0 22px 20px 0;
}
.closing {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 35px;
  border-block: 1px solid #c5ceb5;
  background: #e9eddf;
  padding: 35px 37px;
}
.closing h2 {
  font-size: 26px;
  margin-top: 10px;
}
.closing .eyebrow {
  font-size: 9px;
  color: var(--green);
}
.footer {
  display: flex;
  align-items: center;
  gap: 24px;
  min-height: 121px;
  font-size: 10px;
  color: var(--muted);
}
.footer .brand {
  color: var(--ink);
  font-size: 22px;
}
.footer > div {
  margin-left: auto;
  display: flex;
  gap: 23px;
}
.mobile-break {
  display: none;
}
.noscript-note {
  font-size: 12px;
  padding-top: 20px;
}
@media (min-width: 1500px) {
  .hero {
    gap: 70px;
  }
}
@media (max-width: 1050px) {
  .wrap {
    width: calc(100% - 64px);
  }
  .hero {
    gap: 24px;
  }
  .hero-actions {
    gap: 17px;
  }
  .hero h1 {
    font-size: 46px;
  }
  .hero-description {
    font-size: 14px;
  }
  .hero-art {
    height: 480px;
  }
  .sheet-body {
    padding: 22px 20px 18px;
  }
  .sheet-body h2 {
    font-size: 24px;
  }
  .front-sheet {
    left: 25px;
    right: 0;
  }
  .back-sheet {
    left: 20px;
  }
  .sheet-header {
    font-size: 9px;
    padding: 12px;
  }
  .context-strip {
    font-size: 11px;
  }
  .context-strip > div {
    gap: 15px;
    font-size: 10px;
  }
  .start-section,
  .faq-section {
    gap: 55px;
  }
  .principle {
    padding-right: 25px;
  }
  .principle + .principle {
    padding-left: 25px;
  }
  .workflow-explorer {
    grid-template-columns: 270px 1fr;
  }
  .stage-panel {
    padding: 28px;
  }
  .evidence-art {
    padding-left: 0;
  }
  .mini-source {
    min-width: 155px;
    gap: 22px;
  }
  .files-art {
    padding-inline: 8px;
  }
  .voice-art {
    column-gap: 4px;
    padding-inline: 0;
  }
}
@media (max-width: 800px) {
  .header {
    height: 83px;
    gap: 24px;
  }
  .header nav {
    gap: 20px;
  }
  .hero {
    grid-template-columns: 1fr;
    gap: 24px;
    padding-top: 49px;
    padding-bottom: 40px;
  }
  .hero-copy {
    text-align: center;
  }
  .hero-copy > .eyebrow {
    justify-content: center;
  }
  .hero h1 {
    font-size: 58px;
  }
  .hero-description {
    font-size: 15px;
  }
  .desktop-break {
    display: none;
  }
  .hero-actions,
  .hero-meta {
    justify-content: center;
  }
  .hero-art {
    width: min(510px, 100%);
    margin: 10px auto 0;
    height: 490px;
  }
  .front-sheet {
    left: 58px;
    right: 15px;
  }
  .back-sheet {
    left: 36px;
    right: 64px;
  }
  .sheet-body h2 {
    font-size: 26px;
  }
  .context-strip {
    flex-direction: column;
    gap: 10px;
  }
  .context-strip > div {
    gap: 25px;
  }
  .section {
    padding-block: 58px;
  }
  .section-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 16px;
  }
  .section-heading > p br {
    display: none;
  }
  .principles {
    gap: 20px;
  }
  .principle {
    padding-right: 15px;
  }
  .principle + .principle {
    padding-left: 15px;
  }
  .principle-art {
    height: 115px;
  }
  .mini-source {
    min-width: 125px;
    font-size: 9px;
    padding: 6px 10px;
  }
  .source-result {
    margin-left: 10px;
  }
  .files-art {
    font-size: 9px;
    padding-inline: 0;
  }
  .files-art > span {
    padding: 7px;
  }
  .voice-art {
    font-size: 9px;
    grid-template-columns: auto 24px auto;
    column-gap: 2px;
  }
  .voice-loop {
    font-size: 30px;
  }
  .voice-art > b {
    font-size: 10px;
    padding-inline: 12px;
  }
  .principle h3 {
    font-size: 16px;
  }
  .small-label {
    font-size: 8px;
  }
  .workflow-section {
    padding-block: 56px;
  }
  .workflow-explorer {
    grid-template-columns: 225px 1fr;
  }
  .stage {
    gap: 11px;
    padding: 12px 8px;
    font-size: 11px;
  }
  .stage-list {
    padding: 10px;
  }
  .stage-panel {
    padding: 23px;
  }
  .stage-panel h3 {
    font-size: 22px;
  }
  .artifact {
    padding: 15px;
  }
  .artifact code {
    font-size: 12px;
  }
  .start-section,
  .faq-section {
    grid-template-columns: 1fr;
    gap: 35px;
  }
  .start-section h2 br {
    display: none;
  }
  .start-section h2 {
    font-size: 32px;
    margin-top: 14px;
  }
  .start-copy > p:not(.eyebrow) {
    margin-top: 15px;
  }
  .start-copy > p br {
    display: none;
  }
  .requirements {
    max-width: none;
    margin-top: 22px;
  }
  .start-copy .text-link {
    margin-top: 18px;
  }
  .start-steps {
    max-width: 100%;
  }
  .faq-section {
    padding-block: 45px;
  }
  .closing {
    padding: 28px;
  }
  .closing h2 {
    font-size: 23px;
  }
  .closing .button {
    gap: 15px;
    white-space: nowrap;
  }
  .footer {
    flex-wrap: wrap;
    gap: 18px;
    padding-block: 28px;
    min-height: 110px;
  }
  .footer > div {
    gap: 18px;
  }
  .footer > p {
    display: none;
  }
}
@media (max-width: 540px) {
  .wrap {
    width: calc(100% - 40px);
  }
  .header {
    height: auto;
    min-height: 100px;
    flex-wrap: wrap;
    gap: 17px;
    padding-block: 20px 14px;
    justify-content: space-between;
  }
  .brand {
    font-size: 24px;
  }
  .brand-mark {
    width: 28px;
    height: 28px;
    font-size: 20px;
    margin-right: 10px;
  }
  .repo-link {
    font-size: 11px;
    padding: 5px 12px;
  }
  .header nav {
    order: 3;
    flex-basis: 100%;
    justify-content: center;
    margin: 0;
    gap: 34px;
    font-size: 11px;
  }
  .hero {
    padding-top: 35px;
  }
  .hero-copy > .eyebrow {
    font-size: 8px;
    letter-spacing: 1.4px;
  }
  .hero h1 {
    font-size: clamp(37px, 10.5vw, 51px);
    letter-spacing: -2px;
    margin-top: 19px;
  }
  .hero-description {
    font-size: 12px;
    margin-top: 18px;
    line-height: 2;
  }
  .hero-actions {
    gap: 19px;
    margin-top: 25px;
  }
  .button {
    font-size: 11px;
    gap: 16px;
    padding: 12px 15px;
  }
  .text-link {
    font-size: 11px;
    gap: 6px;
  }
  .hero-meta {
    font-size: 8px;
    gap: 10px;
    margin-top: 20px;
  }
  .hero-meta span + span::before {
    margin-right: 10px;
  }
  .hero-art {
    height: 445px;
    margin-top: 2px;
  }
  .art-caption {
    font-size: 7px;
    letter-spacing: 0.7px;
  }
  .back-sheet {
    top: 59px;
    left: 24px;
    right: 36px;
    height: 238px;
    padding: 19px;
    font-size: 9px;
  }
  .front-sheet {
    top: 113px;
    left: 23px;
    right: 3px;
  }
  .sheet-header {
    font-size: 8px;
    padding: 10px;
  }
  .sheet-body {
    padding: 17px 19px 13px;
  }
  .sheet-body h2 {
    font-size: 23px;
  }
  .document-kicker {
    font-size: 7px;
  }
  .sheet-body p {
    font-size: 9px;
  }
  .document-bottom {
    font-size: 7px;
    margin-top: 10px;
  }
  .feedback-note {
    top: 32px;
    padding: 10px 14px;
    gap: 10px;
  }
  .feedback-note strong {
    font-size: 10px;
  }
  .feedback-note div > span {
    font-size: 8px;
  }
  .note-symbol {
    font-size: 29px;
  }
  .art-footer {
    font-size: 6px;
    letter-spacing: 0.4px;
  }
  .context-strip {
    padding-block: 18px;
    gap: 9px;
  }
  .context-strip > p {
    font-size: 10px;
  }
  .context-strip > div {
    gap: 12px;
    font-size: 8px;
  }
  .context-strip > div > span::before {
    margin-right: 4px;
  }
  .section {
    padding-block: 46px;
  }
  .eyebrow {
    font-size: 9px;
    letter-spacing: 1.3px;
  }
  .section h2,
  .workflow-section h2 {
    font-size: 24px;
    margin-top: 13px;
    letter-spacing: -0.8px;
  }
  .section-heading > p {
    font-size: 11px;
  }
  .principles {
    grid-template-columns: 1fr;
    gap: 0;
    margin-top: 15px;
  }
  .principle {
    display: grid;
    grid-template-columns: 1fr 120px;
    column-gap: 15px;
    padding: 27px 0;
  }
  .principle + .principle {
    border-left: 0;
    border-top: 1px solid var(--line);
    padding-left: 0;
  }
  .principle:last-child {
    padding-bottom: 0;
  }
  .principle-art {
    grid-column: 2;
    grid-row: 1/4;
    margin: 0;
    height: auto;
    align-self: center;
  }
  .principle > .small-label {
    grid-column: 1;
    grid-row: 1;
    font-size: 8px;
  }
  .principle h3 {
    grid-column: 1;
    grid-row: 2;
    font-size: 17px;
    margin-block: 8px;
  }
  .principle > p {
    grid-column: 1;
    grid-row: 3;
    font-size: 11px;
  }
  .mini-source {
    min-width: 101px;
    font-size: 8px;
    padding: 5px 8px;
    gap: 8px;
  }
  .source-result {
    margin-left: 4px;
  }
  .files-art {
    gap: 5px;
    font-size: 8px;
    padding-inline: 5px;
  }
  .files-art > span {
    padding: 6px;
  }
  .voice-art {
    grid-template-columns: 1fr 21px 1fr;
    font-size: 7px;
    column-gap: 0;
    row-gap: 8px;
  }
  .voice-art > b {
    font-size: 8px;
    padding: 6px 12px;
  }
  .voice-loop {
    font-size: 26px;
  }
  .workflow-section {
    padding-block: 44px;
  }
  .workflow-intro {
    font-size: 11px;
    margin-top: 16px;
  }
  .workflow-explorer {
    grid-template-columns: 1fr;
    margin-top: 22px;
  }
  .stage-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    border-right: 0;
    border-bottom: 1px solid #c9d0bd;
    padding: 8px;
    gap: 3px;
  }
  .stage {
    font-size: 10px;
    padding: 9px 8px;
    gap: 9px;
    min-height: 43px;
  }
  .stage-number {
    font-size: 9px;
  }
  .stage small {
    font-size: 7px;
    padding-inline: 3px;
  }
  .stage-panel {
    min-height: 365px;
    padding: 24px;
  }
  .stage-panel h3 {
    font-size: 23px;
    margin-top: 18px;
  }
  .stage-panel > p {
    font-size: 12px;
  }
  .artifact {
    margin-top: 20px;
  }
  .feedback-line {
    gap: 11px;
    font-size: 10px;
    align-items: flex-start;
    padding-top: 17px;
  }
  .feedback-line > span {
    font-size: 23px;
  }
  .feedback-line p {
    line-height: 1.9;
  }
  .feedback-line strong {
    display: block;
  }
  .start-section {
    gap: 29px;
  }
  .start-section h2 {
    font-size: 29px;
  }
  .start-copy > p:not(.eyebrow) {
    font-size: 12px;
  }
  .requirements > span {
    font-size: 8px;
  }
  .terminal pre {
    font-size: 10px;
    padding: 14px;
  }
  .start-step > p {
    padding-left: 0;
    font-size: 11px;
  }
  .prompt-box {
    padding: 14px;
  }
  .prompt-box > p {
    font-size: 11px;
  }
  .faq-section {
    gap: 20px;
    padding-block: 35px;
  }
  .faq-section h2 {
    font-size: 22px;
  }
  .faq-list summary {
    font-size: 12px;
    min-height: 62px;
  }
  .closing {
    padding: 26px 22px;
    flex-direction: column;
    align-items: flex-start;
    gap: 23px;
  }
  .closing h2 {
    font-size: 25px;
  }
  .closing .eyebrow {
    font-size: 8px;
  }
  .mobile-break {
    display: block;
  }
  .footer {
    gap: 14px;
    justify-content: space-between;
    padding-block: 26px;
  }
  .footer .brand {
    font-size: 19px;
  }
  .footer > div {
    gap: 14px;
    font-size: 8px;
  }
  .footer .brand-os {
    margin-left: 4px;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }
  .button-dark:hover {
    transform: none;
  }
}