/* Gorani — 방안지 위의 구성 격자. 플러그인 패널(DESIGN.md)과 같은 색·괘선·모서리 0 */
:root {
  --paper: #F5F7FA;
  --grid: #E9EEF4;
  --grid-major: #DDE4EE;
  --surface: #FFFFFF;
  --ink: #111418;
  --ink-2: #465061;
  --ink-3: #7D8798;
  --hair: #C9D2DE;
  --line: #A9C0F2;
  --blue: #0057FF;
  --blue-dn: #0044CC;
  --blue-ink: #0047D6;
  --blue-wash: #E9F0FF;
  --on-blue: #FFFFFF;
  --wall-a: #E6EBF2;
  --wall-b: #CBD4E0;
  --code-bg: #111418;
  --code-ink: #E8ECF2;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #0C1016;
    --grid: #131A23;
    --grid-major: #1A2330;
    --surface: #111821;
    --ink: #E8ECF2;
    --ink-2: #A9B3C3;
    --ink-3: #8792A4;
    --hair: #2A3442;
    --line: #24427A;
    --blue: #2E69EE;
    --blue-dn: #2457C9;
    --blue-ink: #8CB0FF;
    --blue-wash: #132241;
    --wall-a: #1E2733;
    --wall-b: #2A3442;
    --code-bg: #05080C;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  font-family: "Pretendard Variable", Pretendard, -apple-system, "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  font-size: 17px;
  line-height: 1.7;
  color: var(--ink);
  background-color: var(--paper);
  /* 방안지: 8 px 잔눈 + 40 px 굵은 눈 */
  background-image:
    linear-gradient(var(--grid-major) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-major) 1px, transparent 1px),
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 40px 40px, 40px 40px, 8px 8px, 8px 8px;
  word-break: keep-all;
  overflow-wrap: break-word;
  -webkit-font-smoothing: antialiased;
}
::selection { background: var(--blue); color: var(--on-blue); }
a { color: var(--blue-ink); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }
img { display: block; max-width: 100%; height: auto; }
code, pre, kbd { font-family: var(--mono); }
.num { font-variant-numeric: tabular-nums; }
.wrap { width: min(1200px, 100% - 48px); margin-inline: auto; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 16px; z-index: 10; background: var(--surface); padding: 8px 12px; }

/* ── 머리 ─────────────────────────────── */
.top {
  position: sticky; top: 0; z-index: 5;
  background: var(--surface);
  border-bottom: 1px solid var(--ink);
}
.top .wrap { display: flex; align-items: center; gap: 24px; height: 56px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; margin-right: auto; }
.brand svg { width: 24px; height: 24px; flex: none; }
.brand b { font-size: 18px; font-weight: 800; letter-spacing: -0.01em; }
.brand span { font-size: 13px; color: var(--ink-2); }
.nav { display: flex; gap: 24px; font-size: 15px; }
.nav a { color: var(--ink-2); text-decoration: none; }
.nav a:hover { color: var(--blue-ink); }
.lang {
  display: inline-flex; align-items: center; height: 32px; padding: 0 12px;
  border: 1px solid var(--ink); color: var(--ink); text-decoration: none; font-size: 14px; font-weight: 600;
}
.lang:hover { border-color: var(--blue); color: var(--blue-ink); }
@media (max-width: 880px) { .nav { display: none; } }

/* ── 버튼 ─────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 12px;
  height: 48px; padding: 0 20px;
  border: 1px solid var(--ink); background: var(--surface); color: var(--ink);
  font: inherit; font-size: 16px; font-weight: 600; text-decoration: none; cursor: pointer;
}
.btn:hover { border-color: var(--blue); color: var(--blue-ink); }
.btn.go { background: var(--blue); border-color: var(--blue); color: var(--on-blue); padding-right: 16px; }
.btn.go:hover { background: var(--blue-dn); border-color: var(--blue-dn); color: var(--on-blue); }
/* 다음으로 가는 버튼의 "/" 선 — 패널과 같은 사선 */
.btn.go::after { content: ""; width: 16px; height: 20px; background: linear-gradient(to bottom right, transparent calc(50% - 1px), currentColor calc(50% - 1px), currentColor calc(50% + 1px), transparent calc(50% + 1px)); }
.btn svg { width: 18px; height: 18px; }

/* ── 도면 한 장(히어로) ────────────────── */
.sheet { margin-top: 40px; border: 1px solid var(--ink); background: color-mix(in srgb, var(--paper) 55%, transparent); }
.sheet-body { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 6fr); }
.pitch { padding: 64px 40px 48px; display: flex; flex-direction: column; gap: 24px; }
h1 {
  margin: 0;
  font-size: clamp(38px, 4.4vw, 64px);
  line-height: 1.14;
  font-weight: 750;
  letter-spacing: -0.035em;
  text-wrap: balance;
}
h1 em { font-style: normal; color: var(--blue-ink); }
.lead { margin: 0; font-size: 19px; line-height: 1.7; color: var(--ink-2); max-width: 30em; }
.lead strong { color: var(--ink); font-weight: 650; }
.acts { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }

.drawing { position: relative; border-left: 1px solid var(--hair); display: flex; flex-direction: column; }
.drawing canvas { display: block; width: 100%; aspect-ratio: 1 / 0.86; }
.drawing-bar { display: flex; align-items: center; gap: 16px; padding: 0 16px 16px; flex-wrap: wrap; }
.drawing-bar .label { font-size: 14px; color: var(--ink-2); }
.cells { display: inline-flex; }
.cell {
  height: 32px; min-width: 64px; padding: 0 12px;
  border: 1px solid var(--hair); margin-left: -1px; background: var(--surface);
  font: inherit; font-size: 14px; color: var(--ink-2); cursor: pointer;
  font-variant-numeric: tabular-nums;
}
.cell:first-child { margin-left: 0; }
.cell:hover { color: var(--blue-ink); }
.cell[aria-pressed="true"] { position: relative; z-index: 1; color: var(--blue-ink); font-weight: 650; border-color: var(--blue); box-shadow: inset 0 0 0 1px var(--blue); }
.drawing figcaption { margin-left: auto; font-size: 13px; color: var(--ink-2); }

/* 표제란 — 도면 아래 띠 */
.titleblock { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); border-top: 1px solid var(--ink); background: var(--surface); margin: 0; }
.titleblock div { padding: 12px 16px 14px; border-left: 1px solid var(--hair); min-width: 0; }
.titleblock div:first-child { border-left: 0; }
.titleblock dt { font-size: 12px; color: var(--ink-2); margin-bottom: 2px; }
.titleblock dd { margin: 0; font-size: 15px; font-weight: 600; line-height: 1.45; }

/* 필요 없는 것 — 사선으로 지운 칸 */
.without { display: flex; align-items: stretch; margin-top: 24px; border: 1px solid var(--ink); background: var(--surface); }
.without > span { display: flex; align-items: center; padding: 0 20px; font-size: 14px; font-weight: 650; border-right: 1px solid var(--ink); white-space: nowrap; }
.without ul { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); margin: 0; padding: 0; list-style: none; flex: 1; }
.without li {
  display: flex; align-items: center; justify-content: center; text-align: center;
  min-height: 56px; padding: 8px 12px; font-size: 15px; color: var(--ink-2);
  border-left: 1px solid var(--hair);
  background: linear-gradient(to bottom right, transparent calc(50% - 0.5px), var(--hair) calc(50% - 0.5px), var(--hair) calc(50% + 0.5px), transparent calc(50% + 0.5px));
}
.without li:first-child { border-left: 0; }
.without li span { background: var(--surface); padding: 2px 8px; }

/* ── 구역 공통 ─────────────────────────── */
section.block { margin-top: 120px; }
.head { display: flex; align-items: end; justify-content: space-between; gap: 24px; flex-wrap: wrap; margin-bottom: 32px; }
h2 { margin: 0; font-size: clamp(30px, 3.6vw, 44px); line-height: 1.2; font-weight: 750; letter-spacing: -0.03em; text-wrap: balance; }
.head p { margin: 12px 0 0; color: var(--ink-2); max-width: 36em; }
.module { border: 1px solid var(--ink); background: var(--surface); }

/* 설치 */
.steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); margin: 0; padding: 0; list-style: none; counter-reset: step; }
.steps li { padding: 24px 24px 32px; border-left: 1px solid var(--hair); display: flex; flex-direction: column; gap: 12px; counter-increment: step; }
.steps li:first-child { border-left: 0; }
.steps li::before { content: counter(step); font-size: 48px; line-height: 1; font-weight: 700; color: var(--blue-ink); font-variant-numeric: tabular-nums; }
.steps h3 { margin: 8px 0 0; font-size: 20px; line-height: 1.35; letter-spacing: -0.01em; }
.steps p { margin: 0; font-size: 15px; line-height: 1.65; color: var(--ink-2); }
.cmd { display: inline-flex; align-items: stretch; height: 40px; border: 1px solid var(--ink); background: var(--surface); align-self: flex-start; max-width: 100%; }
.cmd code { display: flex; align-items: center; padding: 0 12px; font-size: 15px; color: var(--ink); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.copy { width: 40px; flex: none; border: 0; border-left: 1px solid var(--ink); background: transparent; color: var(--ink-2); cursor: pointer; display: grid; place-items: center; padding: 0; }
.copy:hover { color: var(--blue-ink); }
.copy svg { width: 16px; height: 16px; }
.copy .i-done { display: none; }
.copy.done { color: var(--blue-ink); }
.copy.done .i-copy { display: none; }
.copy.done .i-done { display: block; }
.ui { font-weight: 650; color: var(--ink); white-space: nowrap; }
.ui::before { content: "["; color: var(--ink-3); font-weight: 400; }
.ui::after { content: "]"; color: var(--ink-3); font-weight: 400; }
.module-foot { display: flex; gap: 24px; justify-content: space-between; flex-wrap: wrap; border-top: 1px solid var(--ink); padding: 16px 24px; font-size: 15px; color: var(--ink-2); }
.module-foot p { margin: 0; }
.status { display: flex; align-items: center; gap: 10px; }
.status::before { content: ""; width: 8px; height: 8px; background: #A8460B; flex: none; }
.glossary { margin-top: 24px; }
.glossary h3 { margin: 0 0 12px; font-size: 16px; }
.glossary dl { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); margin: 0; border: 1px solid var(--ink); background: var(--surface); }
.glossary dl div { padding: 10px 14px; border-left: 1px solid var(--hair); border-top: 1px solid var(--hair); margin: -1px 0 0 -1px; }
.glossary dt { font-weight: 650; font-size: 16px; }
.glossary dd { margin: 0; font-size: 14px; color: var(--ink-2); }

/* 패널 화면 */
.screens { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 32px; margin: 0; padding: 0; list-style: none; }
.screens figure { margin: 0; }
.screens img { border: 1px solid var(--ink); background: var(--surface); width: 100%; aspect-ratio: 480 / 900; object-fit: cover; object-position: top; }
.screens figcaption { margin-top: 16px; font-size: 15px; line-height: 1.6; color: var(--ink-2); }
.screens figcaption b { display: block; color: var(--ink); font-size: 17px; margin-bottom: 4px; }

/* 결과물 */
.outputs { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
.outputs > div { padding: 24px; }
.outputs > div + div { border-left: 1px solid var(--ink); }
.outputs h3 { margin: 0 0 16px; font-size: 18px; }
.module + .module { margin-top: 16px; }
.hosts h3 span { margin-left: 8px; font-weight: 400; font-size: 14px; color: var(--ink-2); }
.hosts p { margin: 0; }
.hosts p.small { margin-top: 12px; }
.tree { margin: 0; font-size: 14px; line-height: 2; overflow-x: auto; }
.tree .dir { color: var(--blue-ink); font-weight: 600; }
.tree .note { color: var(--ink-2); font-family: "Pretendard Variable", Pretendard, sans-serif; }
.layers { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--hair); }
.layers li { display: flex; align-items: center; gap: 12px; padding: 8px 0; border-bottom: 1px solid var(--hair); font-size: 15px; }
.layers li span { color: var(--ink-2); font-size: 14px; margin-left: auto; text-align: right; }
.layers i { width: 16px; height: 16px; flex: none; border: 1px solid var(--ink); }
.small { margin: 16px 0 0; font-size: 14px; color: var(--ink-2); line-height: 1.6; }

.catalog { margin-top: 32px; }
.catalog h3 { margin: 0 0 12px; font-size: 16px; display: flex; flex-wrap: wrap; gap: 4px 12px; align-items: baseline; }
.catalog h3 span { font-weight: 400; font-size: 14px; color: var(--ink-2); }
.catalog ol { display: grid; grid-template-columns: repeat(auto-fill, minmax(168px, 1fr)); gap: 8px; margin: 0 0 24px; padding: 0; list-style: none; }
.catalog li { background: var(--surface); border: 1px solid var(--hair); padding: 10px 12px 12px; min-height: 80px; }
.catalog li b { display: block; font-size: 15px; font-variant-numeric: tabular-nums; }
.catalog li span { display: block; font-size: 14px; line-height: 1.45; }
.catalog li small { display: block; font-size: 12px; color: var(--ink-2); margin-top: 2px; }
.catalog li.frame { border-style: dashed; }
.facts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); margin: 0; padding: 0; list-style: none; border: 1px solid var(--ink); background: var(--surface); }
.facts li { padding: 16px 20px; font-size: 15px; line-height: 1.6; border-left: 1px solid var(--hair); }
.facts li:first-child { border-left: 0; }

/* AI */
.ai { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }
.ai > div { padding: 32px; }
.ai > div + div { border-left: 1px solid var(--ink); background: var(--code-bg); color: var(--code-ink); display: flex; flex-direction: column; }
.ai p { margin: 0 0 16px; color: var(--ink-2); }
.ai .say { text-wrap: pretty; display: flex; gap: 14px; align-items: flex-start; margin: 24px 0; padding: 18px 20px; border: 1px solid var(--blue); background: var(--blue-wash); font-size: 18px; line-height: 1.55; font-weight: 600; color: var(--ink); }
.ai .say svg { width: 20px; height: 20px; flex: none; margin-top: 4px; color: var(--blue-ink); }
.code-head { display: flex; align-items: center; justify-content: space-between; font-size: 14px; color: #A9B3C3; margin-bottom: 16px; }
.code-head .copy { border: 1px solid #5B6677; color: #E8ECF2; height: 32px; width: 32px; }
.code-head .copy:hover { border-color: #8CB0FF; color: #8CB0FF; }
pre.agent { margin: 0; font-size: 14px; line-height: 1.9; white-space: pre-wrap; word-break: break-all; }
pre.agent .c { color: #8792A4; }
pre.agent .k { color: #8CB0FF; }
.ai .code-note { margin: auto 0 0; padding-top: 24px; font-size: 14px; color: #A9B3C3; }

/* 무료 — 청사진 */
.blueprint {
  margin-top: 120px; color: var(--on-blue);
  background-color: var(--blue);
  background-image:
    linear-gradient(rgba(255,255,255,.16) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.16) 1px, transparent 1px),
    linear-gradient(rgba(255,255,255,.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.07) 1px, transparent 1px);
  background-size: 40px 40px, 40px 40px, 8px 8px, 8px 8px;
  border-block: 1px solid var(--ink);
}
.blueprint .wrap { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); gap: 48px; padding-block: 96px; }
.blueprint h2 { font-size: clamp(36px, 5vw, 64px); }
.blueprint p { margin: 0 0 20px; font-size: 18px; line-height: 1.75; max-width: 32em; }
.blueprint .sign { font-size: 15px; opacity: .85; }
.give { align-self: end; display: flex; flex-direction: column; gap: 12px; }
.give .btn { background: transparent; border-color: var(--on-blue); color: var(--on-blue); height: 56px; justify-content: space-between; }
.give .btn:hover { background: var(--on-blue); color: var(--blue); }
.give .btn.go { background: var(--on-blue); color: var(--blue); }
.give .btn.go:hover { background: transparent; color: var(--on-blue); }
.give small { font-size: 14px; opacity: .85; }


/* 꼬리 */
.foot { margin-top: 0; border-top: 0; background: var(--surface); font-size: 14px; color: var(--ink-2); }
.foot .wrap { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 5fr) minmax(0, 3fr); gap: 32px; padding-block: 40px 56px; }
.foot p { margin: 0 0 8px; line-height: 1.6; }
.foot b { color: var(--ink); }

/* ── 좁은 화면 ─────────────────────────── */
@media (max-width: 1024px) {
  .sheet-body { grid-template-columns: minmax(0, 1fr); }
  .drawing { border-left: 0; border-top: 1px solid var(--hair); }
  .pitch { padding: 48px 24px 32px; }
  .titleblock { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .titleblock div:nth-child(4) { border-left: 0; }
  .titleblock div:nth-child(n+4) { border-top: 1px solid var(--hair); }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .steps li:nth-child(3) { border-left: 0; }
  .steps li:nth-child(n+3) { border-top: 1px solid var(--hair); }
  .glossary dl { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .outputs, .ai, .blueprint .wrap { grid-template-columns: minmax(0, 1fr); }
  .outputs > div + div, .ai > div + div { border-left: 0; border-top: 1px solid var(--ink); }
  .foot .wrap { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  .wrap { width: min(1200px, 100% - 32px); }
  .sheet { margin-top: 24px; }
  .pitch { padding: 32px 20px 24px; }
  .lead { font-size: 17px; }
  .titleblock { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .titleblock div:nth-child(n) { border-left: 1px solid var(--hair); border-top: 1px solid var(--hair); }
  .titleblock div:nth-child(odd) { border-left: 0; }
  .titleblock div:nth-child(-n+2) { border-top: 0; }
  .without { flex-direction: column; }
  .without > span { border-right: 0; border-bottom: 1px solid var(--ink); padding: 12px 16px; }
  .without ul { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .without li { border-top: 1px solid var(--hair); }
  .without li:nth-child(odd) { border-left: 0; }
  .without li:nth-child(-n+2) { border-top: 0; }
  .without li:last-child { grid-column: span 2; border-left: 0; }
  section.block { margin-top: 88px; }
  .steps { grid-template-columns: 1fr; }
  .steps li { border-left: 0; border-top: 1px solid var(--hair); }
  .steps li:first-child { border-top: 0; }
  .screens { grid-template-columns: repeat(3, 78%); overflow-x: auto; scroll-snap-type: x mandatory; gap: 16px; padding-bottom: 8px; }
  .screens li { scroll-snap-align: start; }
  .catalog ol { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .glossary dl { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .facts { grid-template-columns: 1fr; }
  .facts li { border-left: 0; border-top: 1px solid var(--hair); }
  .facts li:first-child { border-top: 0; }
  .ai > div { padding: 24px 20px; }
  .blueprint { margin-top: 88px; }
  .blueprint .wrap { padding-block: 64px; }
  .foot .wrap { grid-template-columns: 1fr; }
}