/* HamaEditor 사이트 공통 디자인 시스템 · Daylight
   모든 페이지가 이 파일 하나와 assets/site.js 를 같이 써요.
   흰 종이 위에 검은 글자, 강조색은 파랑 하나예요. 배경에는 옅은 픽셀 격자와 픽셀 구름이 깔려요.
   구조는 그대로예요: 1200px 기둥, 머리카락 같은 세로선, 칸 사이 가로선과 네모 손잡이.
   앱 창(.win, .plan)은 실제 앱처럼 어두운 화면 그대로 두어요. */

/* ─────────── 토큰 ─────────── */
:root {
  /* 종이 */
  --paper: #ffffff;
  --paper-2: #f6f8fb;
  --paper-blue: #eef3ff;
  --night-0: var(--paper);
  --night-1: var(--paper);

  /* 글자 */
  --text: #0b0d12;
  --muted: #4b5260;
  --meta: #6b7280;

  /* 강조색: 파랑 하나. 흰 바탕 위 글자로 5.1:1 이에요. */
  --accent: #1f5eff;
  --accent-hover: #1446d1;
  --accent-wash: #eaf0ff;
  --accent-line: #c9d8ff;
  --soft: var(--accent);
  --mist: var(--accent-wash);
  --deep: #1446d1;
  --navy: #0b0d12;

  /* 픽셀 그림 색 (옅은 파랑과 회색) */
  --px-blue: #a9c0ff;
  --px-blue-soft: #dbe5ff;
  --px-grey: #d3dae6;
  --px-grid: #e4e9f1;

  /* 선과 면 */
  --line: #e6e9ef;
  --line-strong: #cfd5df;
  --surface: #ffffff;
  --surface-ring: #e3e7ee;

  /* 앱 창: 실제 앱의 어두운 테마 */
  --app-frame: #0f0f0f;
  --app-chrome: #181818;
  --app-work: #191919;
  --app-side: #0c0c0c;
  --app-line: #262626;
  --app-bubble: #1c1c1c;
  --app-text: #e6e6e6;
  --app-muted: #b4b4b4;
  --app-dim: #8f8f8f;
  --page: #ffffff;
  --page-sketch: #f4f6f8;
  --page-line: #dfe6ec;

  /* 글꼴 */
  --font: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
  --fs-display: clamp(44px, 6.6vw + 8px, 104px);
  --fs-page: clamp(38px, 4.2vw + 12px, 76px);
  --fs-h2: clamp(32px, 3.8vw + 10px, 68px);
  --fs-h3: clamp(19px, 0.4vw + 17px, 22px);
  --fs-lead: clamp(18px, 0.5vw + 15.5px, 21px);
  --fs-body: 17px;
  --fs-small: 15px;
  --fs-meta: 13px;

  /* 배치 */
  --col: 1200px;
  --edge: 32px;
  --cell-pad: 40px;
  --nav-h: 64px;
  --r-win: 12px;
  --r-card: 20px;

  /* 움직임: 길게 풀리는 expo 하나로 맞춰요 */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.3, 0.64, 1);
  --ease-std: cubic-bezier(0.4, 0, 0, 1);
  --dur-chunk: 700ms;
  --dur-rise: 1200ms;
  --dur-spring: 480ms;
  --stagger: 80ms;

  --shadow-win: 0 0 0 1px rgba(11, 13, 18, 0.1), 0 2px 4px rgba(11, 13, 18, 0.06),
    0 18px 36px -14px rgba(11, 13, 18, 0.28), 0 56px 96px -40px rgba(20, 50, 130, 0.32);
  --shadow-float: 0 0 0 1px rgba(255, 255, 255, 0.07), 0 8px 18px -6px rgba(0, 0, 0, 0.55),
    0 28px 48px -20px rgba(0, 0, 0, 0.6);
  --shadow-card: 0 0 0 1px var(--surface-ring), 0 1px 2px rgba(11, 13, 18, 0.04),
    0 24px 48px -28px rgba(11, 13, 18, 0.18);

  color-scheme: light;
}

@media (max-width: 1100px) {
  :root { --edge: 20px; --cell-pad: 32px; }
}
@media (max-width: 760px) {
  :root { --edge: 12px; --cell-pad: 20px; --nav-h: 60px; --fs-body: 16px; }
}

/* 앱 창 안은 예전 하마 색을 그대로 써요 (어두운 화면의 "스크린샷") */
.win, .plan {
  --text: #eaf6fd;
  --muted: #9fb9cc;
  --meta: #7f9bb0;
  --accent: #62b3e2;
  --accent-hover: #8fd0f5;
  --soft: #b2e2fb;
  --mist: #e6f5ff;
  --deep: #2f73a0;
  --navy: #0c2536;
  color-scheme: dark;
}

/* ─────────── 기본 ─────────── */
*, *::before, *::after { box-sizing: border-box; }
html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: calc(var(--nav-h) + 8px);
  background: var(--paper);
}
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}
body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  font-size: var(--fs-body);
  line-height: 1.7;
  letter-spacing: -0.01em;
  color: var(--text);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  word-break: keep-all;
  overflow-wrap: break-word;
  overflow-x: clip;
}
img, svg, video { display: block; max-width: 100%; }
img, video { height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }
h1, h2, h3, h4, p, ul, ol, dl, dd, figure { margin: 0; }
ul[role="list"], ol[role="list"] { list-style: none; padding: 0; }
::selection { background: rgba(31, 94, 255, 0.18); color: var(--text); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

/* 픽셀 그림(하마, 별, 구름)은 늘 또렷하게 */
.px { image-rendering: pixelated; image-rendering: crisp-edges; shape-rendering: crispEdges; flex: none; }
.px--flip { transform: scaleX(-1); }

.skip {
  position: absolute; left: 12px; top: -60px; z-index: 100;
  padding: 10px 16px; border-radius: 999px;
  background: var(--accent); color: #fff; font-weight: 600; font-size: var(--fs-small);
}
.skip:focus { top: 12px; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.nb { white-space: nowrap; }
@media (max-width: 760px) { .wide-only { display: none !important; } }

/* 본문은 흰 종이 한 장. 바닥글이 그 아래에서 드러나요.
   ::before 는 화면에 붙은 픽셀 격자예요. 스크롤하면 본문보다 느리게 흘러요. clip-path 가 바닥글 위로 넘치지 않게 잘라요. */
main {
  position: relative;
  z-index: 1;
  display: block;
  background: var(--paper);
  clip-path: inset(0);
}
main::before {
  content: "";
  position: fixed; inset: 0 0 -30vh; z-index: -1;
  pointer-events: none;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32' shape-rendering='crispEdges'%3E%3Cpath fill='%23e4e9f1' d='M0 0h2v2h-2z'/%3E%3C/svg%3E") 0 0 / 32px 32px;
}

/* ─────────── 글자 ─────────── */
.display {
  font-size: var(--fs-display);
  line-height: 1.04;
  font-weight: 800;
  letter-spacing: -0.045em;
  text-wrap: balance;
}
.h1 {
  font-size: var(--fs-page);
  line-height: 1.08;
  font-weight: 800;
  letter-spacing: -0.04em;
  text-wrap: balance;
}
.h2 {
  font-size: var(--fs-h2);
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -0.04em;
  text-wrap: balance;
}
.h3 {
  font-size: var(--fs-h3);
  line-height: 1.4;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.lead {
  font-size: var(--fs-lead);
  line-height: 1.6;
  color: var(--muted);
  max-width: 34em;
  text-wrap: pretty;
}
.text { color: var(--muted); text-wrap: pretty; }
.small { font-size: var(--fs-small); }
.meta { font-size: var(--fs-meta); color: var(--meta); letter-spacing: 0.01em; }
.mono { font-family: var(--mono); font-size: 0.86em; letter-spacing: 0; }
.tone-accent { color: var(--accent); }
em.tone-accent { font-style: normal; }
.tone-muted { color: var(--muted); }

/* 칸 머리 위의 작은 글: "01 기능". 번호 앞에 파란 픽셀 하나 */
.eyebrow {
  display: flex; align-items: center; gap: 10px;
  font-size: var(--fs-small);
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0;
}
.eyebrow::before { content: ""; flex: none; width: 6px; height: 6px; background: var(--accent); }
.eyebrow__no { font-family: var(--mono); font-size: 13px; font-weight: 500; color: var(--accent); }

.link {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: rgba(31, 94, 255, 0.35);
  text-underline-offset: 3px;
  transition: color 0.15s ease, text-decoration-color 0.15s ease;
}
.link:hover { color: var(--accent-hover); text-decoration-color: currentColor; }

/* 화살표 글 링크 (보조 행동) */
.link-arrow {
  display: inline-flex; align-items: center; gap: 6px;
  font-weight: 600; color: var(--accent);
  transition: color 0.15s ease;
}
.link-arrow::after { content: "→"; transition: transform 0.25s var(--ease-out); }
.link-arrow:hover { color: var(--accent-hover); }
.link-arrow:hover::after { transform: translateX(4px); }

/* ─────────── 버튼 ─────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 52px; padding: 0 26px;
  border: 0; border-radius: 12px;
  font-size: 16px; font-weight: 650; letter-spacing: -0.01em; line-height: 1;
  white-space: nowrap; cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: background-color 0.15s ease-out, box-shadow 0.2s ease-out, color 0.15s ease-out, transform 0.2s var(--ease-out);
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: scale(0.98); }
.btn--primary {
  background: var(--accent); color: #fff;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2), 0 1px 2px rgba(11, 13, 18, 0.12), 0 10px 24px -12px rgba(31, 94, 255, 0.7);
}
.btn--primary:hover { background: var(--accent-hover); }
.btn--secondary {
  background: var(--paper); color: var(--text);
  box-shadow: inset 0 0 0 1px var(--line-strong), 0 1px 2px rgba(11, 13, 18, 0.05);
}
.btn--secondary:hover { box-shadow: inset 0 0 0 1px var(--text), 0 6px 16px -10px rgba(11, 13, 18, 0.3); }
.btn__icon { flex: none; margin-top: -2px; }
/* 다운로드 버튼의 애플·윈도우 로고 한 쌍 */
.btn__icons { flex: none; display: inline-flex; align-items: center; gap: 5px; }
/* 다운로드: 검은 잉크 버튼 */
.btn--white {
  background: var(--text); color: #fff;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12), 0 1px 2px rgba(11, 13, 18, 0.2), 0 12px 24px -12px rgba(11, 13, 18, 0.6);
}
.btn--white:hover { background: #232733; color: #fff; }
.btn--sm { height: 38px; padding: 0 18px; font-size: 14px; border-radius: 10px; }
.btn--block { width: 100%; }
.btn[aria-disabled="true"], .btn:disabled { opacity: 0.45; pointer-events: none; }
.btn[aria-disabled="true"]:hover { transform: none; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }

/* ─────────── 내비게이션 ─────────── */
.nav {
  position: fixed; inset: 0 0 auto; z-index: 50;
  height: var(--nav-h);
  background: var(--paper);
  box-shadow: 0 1px 0 transparent;
  transition: box-shadow 0.15s ease-out;
}
.nav[data-scrolled="true"] { box-shadow: 0 1px 0 var(--line); }
.nav__in {
  position: relative;
  width: min(var(--col), 100% - 2 * var(--edge));
  height: 100%;
  margin-inline: auto;
  padding-inline: var(--cell-pad);
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 18px; font-weight: 800; letter-spacing: -0.03em; color: var(--text);
}
.brand img { width: 44px; height: 40px; }
.nav__links {
  position: absolute; left: 50%; transform: translateX(-50%);
  display: flex; gap: 36px;
}
.nav__links a {
  position: relative;
  font-size: 15px; font-weight: 550; color: var(--meta);
  transition: color 0.15s ease;
}
.nav__links a::after {
  content: ""; position: absolute; left: 50%; bottom: -8px;
  width: 4px; height: 4px; margin-left: -2px;
  background: var(--accent);
  opacity: 0; transform: translateY(3px);
  transition: opacity 0.2s ease, transform 0.3s var(--ease-out);
}
.nav__links a:hover, .nav__links a[aria-current] { color: var(--text); }
.nav__links a[aria-current]::after { opacity: 1; transform: none; }
.nav__end { display: flex; align-items: center; gap: 8px; }
.nav__toggle {
  display: none;
  width: 40px; height: 40px; margin-right: -8px;
  border: 0; background: none; padding: 0; cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.nav__toggle span {
  display: block; width: 20px; height: 2px; margin: 5px auto;
  background: var(--text);
  transition: transform 0.2s var(--ease-out);
}
.nav__toggle[aria-expanded="true"] span:first-child { transform: translateY(3.5px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:last-child { transform: translateY(-3.5px) rotate(-45deg); }

/* 좁은 화면 메뉴: 화면 전체, 큰 글자 */
.menu {
  position: fixed; inset: var(--nav-h) 0 0; z-index: 49;
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: 24px calc(var(--edge) + var(--cell-pad)) calc(32px + env(safe-area-inset-bottom));
  background: var(--paper);
  overflow-y: auto;
  opacity: 0;
  transition: opacity 0.15s ease-out;
}
.menu[hidden] { display: none; }
.menu.is-open { opacity: 1; }
.menu__links { display: flex; flex-direction: column; gap: 2px; margin-bottom: 32px; }
.menu__links a {
  font-size: 44px; line-height: 1.2; font-weight: 800; letter-spacing: -0.045em; color: var(--text);
}
.menu .btn-row .btn { flex: 1 1 100%; }
html.menu-open { overflow: hidden; }

@media (max-width: 760px) {
  .nav__links, .nav__end .btn { display: none; }
  .nav__toggle { display: block; }
  .brand { font-size: 17px; }
  .brand img { width: 33px; height: 30px; }
}
@media (min-width: 761px) {
  .menu { display: none !important; }
}

/* ─────────── 기둥과 칸 ─────────── */
/* .frame: 1200px 기둥. 양옆에 머리카락 선이 내려와요. */
.frame {
  position: relative;
  width: min(var(--col), 100% - 2 * var(--edge));
  margin-inline: auto;
  border-inline: 1px solid var(--line);
}
.frame--top { padding-top: var(--nav-h); }

/* .cell: 위에 가로선이 있고, 선이 만나는 곳마다 네모 손잡이가 붙어요. */
.cell {
  position: relative;
  isolation: isolate;
  padding: var(--cell-pad);
  border-top: 1px solid var(--line);
}
.cell::before, .cell::after,
.rule::before, .rule::after {
  content: "";
  position: absolute; top: -4px; z-index: 2;
  width: 7px; height: 7px;
  background: var(--paper);
  border: 1px solid var(--line-strong);
  pointer-events: none;
}
.cell::before, .rule::before { left: -4px; }
.cell::after, .rule::after { right: -4px; }
.cell--open { border-top: 0; }
.cell--open::before, .cell--open::after { display: none; }
.rule { position: relative; height: 0; border-top: 1px solid var(--line); }

.cell--head {
  padding-top: clamp(104px, 12vw, 184px);
  padding-bottom: clamp(36px, 4.4vw, 64px);
}
.cell--head .eyebrow + .h2,
.cell--head .eyebrow + .h1 { margin-top: 24px; }
.cell--head .h2 + .lead,
.cell--head .h1 + .lead { margin-top: 24px; }
.cell--center { text-align: center; }
.cell--center .eyebrow { justify-content: center; }
.cell--center .lead { margin-inline: auto; }
.cell--media { padding: clamp(14px, 2.6vw, 30px); }

.cells { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.cells--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
/* 세로 칸막이는 첫째 열이 아닌 칸에만 그어요 */
.cells:not(.cells--3) > .cell:nth-child(even),
.cells--3 > .cell:not(:nth-child(3n + 1)) { border-left: 1px solid var(--line); }
.cells > .cell--wide { grid-column: 1 / -1; border-left: 0; }
@media (max-width: 900px) {
  .cells--3 { grid-template-columns: minmax(0, 1fr); }
  .cells--3 > .cell:not(:nth-child(3n + 1)) { border-left: 0; }
}
@media (max-width: 760px) {
  .cells { grid-template-columns: minmax(0, 1fr); }
  .cells:not(.cells--3) > .cell:nth-child(even) { border-left: 0; }
}

/* 칸 안의 제목 + 설명 */
.cell .h3 + .text, .cell .h3 + p { margin-top: 8px; }
.cell--text { padding-bottom: clamp(36px, 5vw, 64px); }

/* ─────────── 쪽 머리 (하위 페이지) ─────────── */
.page-head { padding-top: clamp(72px, 9vw, 128px); padding-bottom: clamp(40px, 5vw, 64px); }
.page-head .eyebrow + .h1 { margin-top: 22px; }
.page-head .h1 + .lead { margin-top: 22px; }

/* ─────────── 카드 ─────────── */
.card {
  position: relative;
  padding: clamp(22px, 3vw, 32px);
  border-radius: var(--r-card);
  background: var(--surface);
  box-shadow: var(--shadow-card);
}
/* 주인공 카드: 파란 테두리와 조금 더 깊은 그림자 */
.card--navy {
  background: var(--surface);
  box-shadow: 0 0 0 1.5px var(--accent), 0 2px 4px rgba(11, 13, 18, 0.05),
    0 32px 64px -32px rgba(31, 94, 255, 0.45);
}
.card > .h3 + p, .card > .h3 + .text { margin-top: 8px; }

/* 아이콘 타일: 제공자 아이콘, 단계 번호 등 */
.tile {
  display: inline-grid; place-items: center; flex: none;
  width: 52px; height: 52px; border-radius: 14px;
  background: var(--paper);
  box-shadow: 0 0 0 1px var(--line), 0 8px 16px -10px rgba(11, 13, 18, 0.3);
  overflow: hidden;
  font-family: var(--mono); font-size: 15px; font-weight: 600; color: var(--text);
}
.tile img { width: 100%; height: 100%; object-fit: cover; }

/* ─────────── 단계 목록 ─────────── */
/* <ol class="steps"> 안에 <li class="step"> 를 넣어요. 번호는 CSS 가 붙여요. */
.steps { list-style: none; margin: 0; padding: 0; counter-reset: step; display: grid; gap: 0; }
.step { position: relative; counter-increment: step; padding: 22px 0 22px 56px; border-top: 1px solid var(--line); }
.step:first-child { border-top: 0; }
.step::before {
  content: counter(step, decimal-leading-zero);
  position: absolute; left: 0; top: 22px;
  width: 36px; height: 28px; display: grid; place-items: center;
  border-radius: 8px;
  font-family: var(--mono); font-size: 12.5px; font-weight: 600;
  color: var(--accent); background: var(--accent-wash);
  box-shadow: inset 0 0 0 1px var(--accent-line);
}
.step > .h3 + p, .step > .h3 + .text { margin-top: 6px; }

/* ─────────── 긴 글 (약관, 안내) ─────────── */
.prose { max-width: 70ch; color: #2b313c; font-size: var(--fs-body); line-height: 1.8; }
.prose > * + * { margin-top: 1em; }
.prose h2 {
  margin-top: 2.4em; font-size: 22px; line-height: 1.4; font-weight: 750; letter-spacing: -0.025em; color: var(--text);
  scroll-margin-top: calc(var(--nav-h) + 16px);
}
.prose h3 { margin-top: 1.8em; font-size: 18px; line-height: 1.45; font-weight: 700; color: var(--text); }
.prose h2 + *, .prose h3 + * { margin-top: 0.6em; }
.prose ul, .prose ol { padding-left: 1.3em; }
.prose li + li { margin-top: 0.35em; }
.prose li::marker { color: var(--meta); }
.prose strong { color: var(--text); font-weight: 650; }
.prose a { color: var(--accent); text-decoration: underline; text-decoration-color: rgba(31, 94, 255, 0.35); text-underline-offset: 3px; }
.prose a:hover { text-decoration-color: currentColor; }
.prose code, .prose kbd { font-family: var(--mono); font-size: 0.88em; padding: 0.1em 0.4em; border-radius: 6px; background: var(--paper-2); box-shadow: inset 0 0 0 1px var(--line); color: var(--text); }
.prose hr { border: 0; border-top: 1px solid var(--line); margin: 2.4em 0; }
.prose table { width: 100%; border-collapse: collapse; font-size: var(--fs-small); }
.prose th, .prose td { padding: 10px 12px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); }
.prose th { color: var(--text); font-weight: 650; }
.prose img { border-radius: var(--r-win); box-shadow: var(--shadow-win); }
.prose figcaption { margin-top: 10px; font-size: var(--fs-meta); color: var(--meta); }

/* ─────────── 입력 ─────────── */
/* 동의 체크: <label class="check"><input type="checkbox"><span>글</span></label> */
.check { display: flex; align-items: flex-start; gap: 12px; cursor: pointer; font-size: var(--fs-small); line-height: 1.6; color: var(--muted); }
.check input {
  appearance: none; -webkit-appearance: none; flex: none;
  width: 20px; height: 20px; margin: 2px 0 0;
  border-radius: 6px;
  background: var(--paper);
  box-shadow: inset 0 0 0 1.5px var(--line-strong);
  display: grid; place-content: center; cursor: pointer;
  transition: background-color 0.15s ease-out, box-shadow 0.15s ease-out;
}
.check input::after {
  content: ""; width: 10px; height: 6px;
  border: solid #fff; border-width: 0 0 2px 2px;
  transform: translateY(-1px) rotate(-45deg) scale(0);
  transition: transform 0.2s var(--ease-spring);
}
.check input:checked { background: var(--accent); box-shadow: none; }
.check input:checked::after { transform: translateY(-1px) rotate(-45deg) scale(1); }
.check:hover input:not(:checked) { box-shadow: inset 0 0 0 1.5px var(--accent); }
.check a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }

.input {
  width: 100%; height: 48px; padding: 0 16px;
  border: 0; border-radius: 12px;
  background: var(--paper); color: var(--text);
  box-shadow: inset 0 0 0 1px var(--line-strong);
  font: inherit; font-size: 16px;
  transition: box-shadow 0.15s ease-out;
}
.input:focus { outline: none; box-shadow: inset 0 0 0 2px var(--accent); }

/* 라이선스 키 같은 고정폭 상자 */
.code-box {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 14px 16px; border-radius: 12px;
  background: var(--paper-2); box-shadow: inset 0 0 0 1px var(--line-strong);
  font-family: var(--mono); font-size: 15px; color: var(--text); letter-spacing: 0.02em;
  overflow-wrap: anywhere;
}

/* ─────────── 픽셀 하늘 ─────────── */
/* .sky 를 칸이나 섹션 안에 깔고, 별·점·구름을 left/top 으로 흩뿌려요. 흰 종이 위라 옅은 파랑과 회색이에요. */
.sky { position: absolute; inset: 0; z-index: -1; pointer-events: none; overflow: hidden; }
.has-sky { position: relative; isolation: isolate; }
.star {
  --u: 4px;
  --arm: var(--px-blue);
  position: absolute;
  width: var(--u); height: var(--u);
  background: var(--accent);
  box-shadow: 0 calc(var(--u) * -1) var(--arm), calc(var(--u) * -1) 0 var(--arm),
    var(--u) 0 var(--arm), 0 var(--u) var(--arm);
}
.star--lg { --u: 5px; }
.star--dim { --arm: var(--px-blue-soft); background: var(--px-blue); }
.dot { position: absolute; width: 4px; height: 4px; background: var(--px-grey); }
.dot--hi { background: var(--px-blue); }
.cloud {
  position: absolute;
  width: 96px; height: 36px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 6' shape-rendering='crispEdges'%3E%3Cpath fill='%23e4ecfd' d='M4 0h4v1h-4zM3 1h6v1h-6zM10 1h3v1h-3zM1 2h13v1h-13zM0 3h15v1h-15zM0 4h16v1h-16z'/%3E%3Cpath fill='%23d3e0fa' d='M1 5h14v1h-14z'/%3E%3C/svg%3E") 0 0 / 100% 100% no-repeat;
  image-rendering: pixelated;
}
.cloud--s { width: 64px; height: 24px; }
.cloud--l { width: 128px; height: 48px; }

/* ─────────── 앱 창 ─────────── */
/* <div class="win"> 막대 + 몸통(문서 영역 + 사이드바). 좁아지면 사이드바가 떠 있는 패널이 돼요. */
.win {
  position: relative;
  container-type: inline-size;
  background: var(--app-frame);
  border-radius: var(--r-win);
  box-shadow: var(--shadow-win);
  color: var(--app-text);
  font-size: 13px; line-height: 1.55; letter-spacing: -0.005em;
  isolation: isolate;
}
.win__bar {
  position: relative;
  height: 40px; display: flex; align-items: center; padding: 0 16px;
  background: var(--app-chrome);
  border-bottom: 1px solid var(--app-line);
  border-radius: var(--r-win) var(--r-win) 0 0;
}
.win__dots { display: flex; gap: 7px; }
.win__dots i { width: 11px; height: 11px; border-radius: 50%; background: #3a3a3a; }
.win__title {
  position: absolute; inset: 0 90px; display: grid; place-items: center;
  font-size: 12.5px; font-weight: 500; color: var(--app-dim);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.win__body {
  position: relative;
  display: flex;
  height: var(--win-h, 440px);
  border-radius: 0 0 var(--r-win) var(--r-win);
  overflow: hidden;
}
.win__doc {
  position: relative; flex: 1; min-width: 0;
  display: flex; justify-content: center;
  padding: 24px 24px 0;
  background: var(--app-work);
  overflow: hidden;
}
.win__side {
  position: relative; flex: none;
  width: clamp(200px, 32%, 320px);
  display: flex; flex-direction: column; gap: 12px;
  padding: 14px 16px 16px;
  background: var(--app-side);
  border-left: 1px solid var(--app-line);
}
.win--sm .win__bar { height: 32px; padding: 0 12px; }
.win--sm .win__dots { gap: 6px; }
.win--sm .win__dots i { width: 9px; height: 9px; }
.win--sm .win__title { font-size: 11.5px; }
.win--sm { font-size: 12px; }
.win--sm .win__doc { padding: 18px 16px 0; }
.win--sm .win__side { width: 40%; padding: 12px; gap: 10px; }

/* 큰 창은 560px, 작은 창은 360px 보다 좁아지면 사이드바가 문서 위에 떠요.
   .win--dock 을 붙이면 좁아도 옆에 붙어 있어요. */
@container (max-width: 560px) {
  .win:not(.win--sm) .win__side {
    position: absolute; right: 10px; bottom: 10px; z-index: 2;
    width: min(78%, 280px);
    border: 1px solid var(--app-line); border-radius: 12px;
    box-shadow: var(--shadow-float);
  }
  .win:not(.win--sm) .side__composer { display: none; }
}
@container (max-width: 360px) {
  .win--sm:not(.win--dock) .win__side {
    position: absolute; right: 8px; bottom: 8px; z-index: 2;
    width: min(74%, 230px);
    border: 1px solid var(--app-line); border-radius: 10px;
    box-shadow: var(--shadow-float);
  }
}

/* 문서 한 쪽 */
.page {
  position: relative;
  width: 100%; max-width: var(--page-w, 440px);
  align-self: flex-start;
  background: var(--page);
  border-radius: 3px 3px 0 0;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.4), 0 6px 18px -6px rgba(0, 0, 0, 0.55);
  overflow: hidden;
}
.page video, .page img { width: 100%; height: auto; }
.page--sketch {
  background: var(--page-sketch);
  padding: 26px 30px;
  min-height: 100%;
  color: var(--navy);
}
.page--sketch h4 { margin: 0 0 16px; font-size: 13px; font-weight: 700; letter-spacing: -0.02em; text-align: center; }
.ln { height: 6px; border-radius: 3px; background: var(--page-line); margin-bottom: 10px; }
.ln--new { background: var(--soft); }
.ln-gap { height: 8px; }
.caret { display: inline-block; width: 2px; height: 14px; border-radius: 1px; background: var(--deep); vertical-align: middle; }

/* 사이드바 안 대화 */
.side__head { display: flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 600; color: var(--app-text); }
.side__head img { width: 22px; height: 20px; }
.bubble {
  align-self: flex-end; max-width: 88%;
  padding: 8px 12px;
  border-radius: 14px 14px 4px 14px;
  background: var(--app-bubble); color: var(--app-text);
}
.agent { color: var(--app-muted); }
.agent b { color: var(--app-text); font-weight: 600; }
.tool {
  display: flex; align-items: center; gap: 8px;
  font-size: 12px; color: var(--app-dim);
}
.tool::before { content: "›_"; font-family: var(--mono); font-size: 11px; color: #6a6a6a; }
.side__composer {
  margin-top: auto;
  display: flex; align-items: center; gap: 8px;
  padding: 10px 10px 10px 12px;
  border-radius: 12px;
  background: #141414; box-shadow: inset 0 0 0 1px var(--app-line);
  color: #6f6f6f; font-size: 12.5px;
}
.side__composer .caret { height: 13px; background: var(--accent); }
.side__send {
  margin-left: auto; width: 24px; height: 24px; border-radius: 7px;
  display: grid; place-items: center;
  background: var(--accent); color: var(--navy); font-size: 13px; font-weight: 700;
}

/* 앱 창 위에 앉은 하마 */
.perch { position: absolute; bottom: 100%; z-index: 3; width: 110px; height: 100px; pointer-events: none; }
.perch img { width: 100%; height: 100%; }
@media (max-width: 760px) {
  .perch { width: 66px; height: 60px; }
}

/* 실제 앱 화면을 그대로 담는 틀 (밝은 테마 녹화본) */
.shot {
  position: relative;
  border-radius: var(--r-win);
  overflow: hidden;
  background: #fff;
  box-shadow: var(--shadow-win);
}
.shot video, .shot img { width: 100%; height: auto; }

/* ─────────── 바닥글 ─────────── */
/* 본문이 위로 걷히면서 아래에 고정된 바닥글이 드러나요 (site.js 가 높이를 맞춰요).
   흰 본문 뒤의 밤: 검은 바닥에 큰 파란 이름 */
.footer {
  --text: #f4f6fa;
  --muted: #a7afbd;
  --meta: #828b9b;
  --line: rgba(255, 255, 255, 0.1);
  --ink: #0b0d12;
  position: relative; background: var(--ink); color: var(--text);
}
.footer.is-reveal { clip-path: inset(0); }
.footer.is-reveal .footer__in { position: fixed; left: 0; right: 0; bottom: 0; }
.footer__in { background: var(--ink); overflow: hidden; }
.footer :focus-visible { outline-color: #8fb0ff; }
.footer__grid {
  position: relative; z-index: 1;
  width: min(var(--col), 100% - 2 * var(--edge));
  margin-inline: auto;
  padding: clamp(64px, 8vw, 112px) var(--cell-pad) 0;
  display: grid; grid-template-columns: minmax(0, 1.3fr) repeat(3, minmax(0, 1fr)); gap: 32px;
}
.footer__brand { display: flex; flex-direction: column; gap: 14px; align-items: flex-start; }
.footer__brand p { font-size: var(--fs-small); color: var(--meta); }
.footer__col h2 {
  margin-bottom: 14px;
  font-size: 13px; font-weight: 600; letter-spacing: 0.04em; color: var(--meta);
}
.footer__col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.footer__col a { font-size: var(--fs-small); color: var(--muted); transition: color 0.15s ease; }
.footer__col a:hover { color: var(--text); }
.footer__base {
  position: relative; z-index: 1;
  width: min(var(--col), 100% - 2 * var(--edge));
  margin-inline: auto;
  padding: 48px var(--cell-pad) 0;
  display: flex; flex-wrap: wrap; gap: 8px 24px;
  font-size: var(--fs-meta); color: var(--meta);
}
.footer__base a { color: var(--muted); }
.footer__base a:hover { color: var(--text); }
.footer__mark {
  margin: 16px 0 0;
  font-size: clamp(72px, 17vw, 270px); line-height: 0.78; font-weight: 800; letter-spacing: -0.06em;
  text-align: center; white-space: nowrap;
  color: var(--accent);
  transform: translateY(0.14em);
  user-select: none;
}
@media (max-width: 900px) {
  .footer__grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .footer__brand { grid-column: 1 / -1; }
}
@media (max-width: 520px) {
  .footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 36px; }
}

/* ─────────── 움직임 ─────────── */
/* data-reveal: 화면에 들어오면 site.js 가 .is-in 을 붙여요. --i 로 순서를 줘요.
   기본 = 떠오르기, "chunk" = 글 덩어리, "rise" = 큰 창, "spring" = 떠 있는 패널,
   "words" = 제목. site.js 가 낱말마다 감싸서 한 낱말씩 아래에서 올라와요. */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity var(--dur-chunk) var(--ease-out), transform var(--dur-chunk) var(--ease-out);
  transition-delay: calc(var(--i, 0) * var(--stagger));
}
.js [data-reveal="chunk"] { transform: translateY(10px); }
.js [data-reveal="rise"] {
  transform: translateY(56px) scale(0.96);
  transition-duration: var(--dur-rise), var(--dur-rise);
}
.js [data-reveal="spring"] {
  transform: translateY(24px) scale(0.97);
  transition-duration: var(--dur-spring); transition-timing-function: var(--ease-spring);
}
.js [data-reveal].is-in { opacity: 1; transform: none; }

/* 제목 낱말: 줄 아래에 숨어 있다가 올라와요 (마스크는 낱말 상자의 overflow) */
/* 낱말로 나뉘기 전에는 숨겨 두어서 제목이 한 번 깜빡이지 않아요 */
.js [data-reveal="words"] { opacity: 0; transform: none; transition: none; }
.js [data-reveal="words"].is-split, .js [data-reveal="words"].is-in { opacity: 1; }
.w { display: inline-block; vertical-align: top; overflow: hidden; padding: 0.06em 0.1em 0.14em; margin: -0.06em -0.1em -0.14em; }
.w__i { display: inline-block; }
.js [data-reveal="words"] .w__i {
  transform: translateY(110%);
  transition: transform 1100ms var(--ease-out);
  transition-delay: calc(var(--d0, 0ms) + var(--wi, 0) * 60ms);
}
.js [data-reveal="words"].is-in .w__i { transform: none; }

/* data-demo 안의 [data-at] 조각: 순서대로 .is-on 이 붙어요 */
.js [data-demo] [data-at] {
  opacity: 0; transform: translateY(4px);
  transition: opacity 600ms var(--ease-out), transform 600ms var(--ease-out);
}
.js [data-demo] [data-at].is-on { opacity: 1; transform: none; }
.js [data-demo] [data-at][data-fx="spring"] {
  transform: translateY(24px) scale(0.97);
  transition-duration: var(--dur-spring); transition-timing-function: var(--ease-spring);
}
.js [data-demo] [data-at][data-fx="spring"].is-on { transform: none; }
.js [data-demo] [data-at][data-fx="grow"] {
  opacity: 1; transform: scaleX(0); transform-origin: left center;
  transition: transform 520ms var(--ease-out);
}
.js [data-demo] [data-at][data-fx="grow"].is-on { transform: none; }
.js [data-demo] [data-at][data-fx="pop"] {
  transform: translateY(10px) scale(0.94);
  transition-duration: 360ms; transition-timing-function: var(--ease-spring);
}
.js [data-demo] [data-at][data-fx="pop"].is-on { transform: none; }

/* 메뉴 링크는 열릴 때 한 줄씩 올라와요 */
@keyframes chunk-in { from { opacity: 0; transform: translateY(16px); } }
.menu.is-open .menu__links a,
.menu.is-open .btn-row { animation: chunk-in var(--dur-chunk) var(--ease-out) both; }
.menu.is-open .menu__links a:nth-child(2) { animation-delay: 50ms; }
.menu.is-open .menu__links a:nth-child(3) { animation-delay: 100ms; }
.menu.is-open .menu__links a:nth-child(4) { animation-delay: 150ms; }
.menu.is-open .menu__links a:nth-child(5) { animation-delay: 200ms; }
.menu.is-open .menu__links a:nth-child(6) { animation-delay: 250ms; }
.menu.is-open .btn-row { animation-delay: 250ms; }

/* 깜빡이는 커서 */
@keyframes caret-blink { 0%, 49% { opacity: 1; } 50%, 100% { opacity: 0; } }
.caret--blink { animation: caret-blink 1100ms steps(1, end) infinite; }

/* 픽셀 별 반짝임: 잠깐 꺼졌다 돌아와요 */
@keyframes star-blink {
  0%, 86%, 100% { opacity: 1; }
  88%, 94% { opacity: 0.2; }
}
.star--blink { animation: star-blink var(--blink, 6s) steps(1, end) var(--d, 0s) infinite; }

/* 하마가 창 위에 내려앉아요 */
.js .perch[data-reveal] { transform: translateY(-18px); transition-duration: 560ms; transition-timing-function: var(--ease-spring); }
.js .perch[data-reveal].is-in { transform: none; }

/* 스크롤에 맞춰 움직이는 것들. 지원하는 브라우저에서만 켜지고, 나머지는 위의 나타나기만 해요.
   transform 계열(translate, scale)과 opacity 만 움직여요. */
@keyframes grid-drift { to { translate: 0 -30vh; } }
@keyframes sky-drift {
  from { translate: 0 calc(var(--depth, 40px) * 1); }
  to { translate: 0 calc(var(--depth, 40px) * -1); }
}
@keyframes read-progress { from { transform: scaleX(0); } to { transform: scaleX(1); } }

@supports (animation-timeline: scroll()) {
  @media (prefers-reduced-motion: no-preference) {
    main::before { animation: grid-drift linear both; animation-timeline: scroll(root); }

    /* 위 막대 아래에 얇은 파란 읽기 선 */
    .nav::after {
      content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 2px;
      background: var(--accent);
      transform-origin: left center;
      animation: read-progress linear both; animation-timeline: scroll(root);
    }

    /* 하늘은 섹션이 지나가는 동안 천천히 흘러요. 큰 구름일수록 깊이 있어요. */
    .has-sky { view-timeline: --sky block; }
    .sky > i { animation: sky-drift linear both; animation-timeline: --sky; }
    .sky > .star--blink {
      animation: sky-drift linear both, star-blink var(--blink, 6s) steps(1, end) var(--d, 0s) infinite;
      animation-timeline: --sky, auto;
    }
    .sky > .cloud { --depth: 70px; }
    .sky > .cloud--l { --depth: 110px; }
    .sky > .cloud--s { --depth: 48px; }
    .sky > .star { --depth: 32px; }
    .sky > .dot { --depth: 18px; }
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0s !important;
  }
  .js [data-reveal], .js [data-demo] [data-at], .js [data-reveal="words"] .w__i { opacity: 1 !important; transform: none !important; }
}