/* 시안 1 — 스토리텔링형 · 다크 · 메인 블루
   콘텐츠 문법은 x.ai 다크: 무채색 검정 바닥, 테두리 없는 채움 카드, 500 굵기의 촘촘한 헤드라인, 알약 버튼 */
:root {
  --bg: #08090b;
  --bg-2: #111215;          /* 채움 카드 */
  --surface: #17181c;       /* 카드 속 요소 */
  --surface-2: #1e2025;     /* 보조 버튼·칩 */
  --line: rgba(255, 255, 255, .07);
  --line-2: rgba(255, 255, 255, .12);
  --text: #f5f6f8;
  --text-2: #a1a5ad;
  --text-3: #676b73;
  --blue: #1f78f0;
  --blue-text: #6ea8ff;
  --blue-focus: #5b93ff;
  --dot-ink: #e6ebf3;
  --dot-accent: #6ea8ff;
  --font-sans: "Pretendard Variable", Pretendard, system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, monospace;
  --radius: 14px;
  --radius-lg: 20px;
  --gutter: clamp(16px, 4vw, 48px);
  --max: 1232px;
  --ease: cubic-bezier(.2, .7, .1, 1);
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  letter-spacing: -.01em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
:focus-visible { outline: 2px solid var(--blue-focus); outline-offset: 3px; border-radius: 6px; }
::selection { background: rgba(31, 120, 240, .45); }

#dots {
  position: fixed; inset: 0;
  width: 100%; height: 100%;
  z-index: 0; pointer-events: none;
}
.no-dots #dots { display: none; }
#story, .nav, .foot { position: relative; z-index: 1; }

/* ── 공통 ───────────────────────────────── */
.wrap { width: min(var(--max), 100% - var(--gutter) * 2); margin-inline: auto; }
.eyebrow {
  margin: 0 0 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-2);
}
h2 {
  margin: 0;
  font-size: clamp(34px, 4.4vw, 54px);
  line-height: 1.1;
  letter-spacing: -.04em;
  font-weight: 600;
  text-wrap: balance;
}
.lead {
  margin: 20px 0 0;
  max-width: 32em;
  font-size: clamp(16px, 1.3vw, 18px);
  line-height: 1.6;
  color: var(--text-2);
  text-wrap: pretty;
}
.copy-center { text-align: center; }
.copy-center .lead { margin-inline: auto; }
.card-fill {
  background: var(--bg-2);
  border-radius: var(--radius-lg);
}

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 44px; padding: 0 20px;
  border-radius: 999px;
  background: var(--blue);
  color: #fff;
  font-weight: 500; font-size: 15px;
  transition: background .2s, transform .2s var(--ease);
}
.btn:active { transform: scale(.97); }
.btn-quiet { background: var(--surface-2); color: var(--text); }
.btn-outline { background: transparent; color: var(--text); box-shadow: inset 0 0 0 1px var(--line-2); }
.btn-block { display: flex; width: 100%; }
.btn-sm { height: 38px; padding: 0 18px; font-size: 14px; }
@media (hover: hover) {
  .btn:hover { background: #2a84ff; }
  .btn-quiet:hover { background: #272a30; }
  .btn-outline:hover { background: rgba(255, 255, 255, .04); }
}

/* ── 내비 ───────────────────────────────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 10;
  display: flex; align-items: center; gap: 44px;
  height: 64px; padding: 0 var(--gutter);
  transition: background .3s, box-shadow .3s;
}
.nav.is-scrolled {
  background: rgba(8, 9, 11, .8);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  box-shadow: 0 1px 0 var(--line);
}
.nav-brand { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 17px; letter-spacing: -.03em; }
.nav-brand svg { width: 18px; height: 18px; fill: var(--blue-text); }
.nav-links { display: flex; gap: 28px; font-size: 14px; color: rgba(255, 255, 255, .6); }
.nav-links a { transition: color .2s; }
.nav-links a.is-active { color: var(--text); }
.nav-cta { display: flex; gap: 8px; margin-left: auto; }
/* 오른쪽 알약 버튼 — 옅은 테두리 + 반투명 바탕, 오른쪽 위 화살표 */
.nav-pill {
  display: inline-flex; align-items: center; gap: 6px;
  height: 36px; padding: 0 16px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, .18);
  background: rgba(255, 255, 255, .04);
  color: #f5f6f8; font-size: 14px; font-weight: 500;
  transition: background .2s, border-color .2s;
}
.nav-pill svg { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
@media (hover: hover) { .nav-pill:hover { background: rgba(255, 255, 255, .1); border-color: rgba(255, 255, 255, .32); } }
@media (hover: hover) { .nav-links a:hover { color: var(--text); } }

/* ── 장면 ───────────────────────────────── */
.scene {
  position: relative;
  min-height: 100vh; min-height: 100svh;
  padding: 160px 0 140px;
  display: flex; flex-direction: column; justify-content: center;
}

/* 1 · 히어로 — 위: 문구 / 가운데: 두 줄 점묘 글자(화면을 꽉 채움) / 아래: 도입하기 */
.hero-bg {
  position: fixed; left: 0; right: 0; top: 0; /* 히어로 무대와 함께 붙어 있다가 무대가 끝나면 main.js 가 위로 밀어 올린다 */
  height: calc(100vh + 6vh); height: calc(100svh + 6vh);
  z-index: 0; pointer-events: none;
  background:
    /* 바닥 빛 — 범위를 줄이고 채도를 낮춘 스틸 블루 */
    radial-gradient(ellipse 34% 20% at 50% calc(100% - 6vh + 6%), rgba(196, 214, 236, .5) 0%, rgba(128, 160, 204, .3) 24%, rgba(90, 120, 170, 0) 70%),
    radial-gradient(ellipse 60% 32% at 50% calc(100% - 6vh + 10%), rgba(72, 104, 160, .62) 0%, rgba(52, 80, 134, .4) 32%, rgba(34, 54, 98, .18) 56%, rgba(24, 38, 70, 0) 78%),
    radial-gradient(ellipse 110% 44% at 50% calc(100% - 6vh + 18%), rgba(30, 44, 80, .32) 0%, rgba(18, 26, 50, 0) 70%),
    linear-gradient(180deg, #03050a 0%, #04070f 60%, #070b17 100%);
  -webkit-mask: linear-gradient(180deg, #000 calc(100% - 9vh), transparent);
  mask: linear-gradient(180deg, #000 calc(100% - 9vh), transparent);
}
/* 히어로 = 화면에 붙은 무대(.hero-pin) + 스크롤 거리. --hp(0→1) 는 main.js 가 스크롤로 넣는다
   ① .hero-a 제목·버튼·점묘 글자  →  ② .hero-b AI 입력창 */
.s-hero {
  display: block;
  height: calc(100svh + 120vh); /* 120vh 만큼 스크롤하는 동안 무대가 붙어 있다 */
  min-height: 0;
  padding: 0;
  text-align: center;
}
.hero-pin {
  --hp: 0;
  position: sticky; top: 0;
  height: 100vh; height: 100svh; min-height: 600px;
  overflow: hidden;
}
.hero-a {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 64px var(--gutter) 0;
  opacity: calc(1 - var(--hp) * 2.2);
  transform: translateY(calc(var(--hp) * -60px));
  pointer-events: none;
}
.hero-a .hero-head { pointer-events: auto; }
.hero-hint {
  position: absolute; left: 50%; bottom: clamp(20px, 4vh, 40px); transform: translateX(-50%);
  display: flex; align-items: center; gap: 6px; margin: 0;
  font-size: 13px; color: rgba(225, 232, 245, .55); white-space: nowrap;
}
.hero-hint svg { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; animation: hint-bob 1.8s ease-in-out infinite; }
@keyframes hint-bob { 50% { transform: translateY(4px); } }
.hero-title {
  margin: 0;
  font-size: clamp(30px, 4vw, 54px);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -.04em;
  color: #cfd8e6;
  background: linear-gradient(90deg, #5d6a80 0%, #b9c4d6 28%, #eef3fa 50%, #b9c4d6 72%, #5d6a80 100%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  text-wrap: balance;
}
.hero-word {
  position: relative;
  flex: none;
  width: calc(100vw - 32px); /* 한 줄 글자가 화면 좌우 끝까지 */
  height: clamp(80px, min(30vh, 21vw), 320px);
  margin: clamp(4px, 1vh, 12px) 0 0;
  display: grid; place-items: center;
}
.hero-word-fallback {
  font-size: 21vw;
  font-weight: 800; letter-spacing: -.05em; line-height: .84; white-space: nowrap;
  color: var(--dot-ink);
  visibility: hidden;
}
.hero-word-fallback b { color: var(--dot-accent); font-weight: inherit; }
.no-dots .hero-word-fallback { visibility: visible; }
.btn-glow {
  flex: none;
  height: 52px; padding: 0 28px; font-weight: 600;
  background: linear-gradient(180deg, #3b8dff, #1f6ef5);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .28), 0 0 0 1px rgba(150, 205, 255, .35), 0 8px 28px rgba(31, 120, 240, .45);
}
.btn-glow svg { width: 15px; height: 15px; fill: #fff; }
/* 제목 + 버튼 한 덩어리 — 제목 아래 28px, 버튼 사이 10px */
.hero-head { position: relative; z-index: 2; display: flex; flex-direction: column; align-items: center; gap: clamp(20px, 3.2vh, 28px); }
.hero-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }
/* 소개서 받기 — 도입하기(파랑 채움)와 구분되는 반투명 유리 버튼 */
.btn-glass {
  height: 52px; padding: 0 26px; font-weight: 600;
  background: rgba(255, 255, 255, .06);
  color: #e6ecf5;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .16);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
}
.btn-glass svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
@media (hover: hover) { .btn-glass:hover { background: rgba(255, 255, 255, .11); } }
@media (hover: hover) { .btn-glow:hover { background: linear-gradient(180deg, #4b98ff, #2a7bff); } }

/* ② AI 입력창 — 글자 입자가 모여 테두리가 되는 유리 알약 하나. 열쇠 말은 흰 굵은 글씨, 나머지는 흐리게 */
.hero-b {
  --show: clamp(0, (var(--hp) - .55) * 3.4, 1);
  position: absolute; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: flex-start;
  padding: clamp(110px, 24vh, 230px) var(--gutter) 0; /* 위에서부터 — 답이 늘어나도 입력창은 제자리 (점 테두리와 맞물림) */
  opacity: var(--show);
  pointer-events: none;
}
/* 입력창은 제자리에서 나타나고(점이 테두리로 모인 자리), 글자들만 살짝 떠오른다 */
.hc-k, .hc-title, .hc-out { transform: translateY(calc((1 - var(--show)) * 24px)); }
.hero-b.is-live { pointer-events: auto; }
.hc-k { margin: 0 0 14px; font-family: var(--font-mono); font-size: 12px; letter-spacing: .08em; color: var(--blue-text); }
.hc-title { margin: 0 0 clamp(28px, 4.4vh, 44px); font-size: clamp(26px, 3.2vw, 40px); font-weight: 500; letter-spacing: -.04em; color: #e9eef6; }
.hc-pill {
  position: relative;
  width: min(720px, 100%); height: 72px;
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(255, 255, 255, .11), rgba(255, 255, 255, .05));
  -webkit-backdrop-filter: blur(18px) saturate(1.5); backdrop-filter: blur(18px) saturate(1.5);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .22), inset 0 0 0 1px rgba(255, 255, 255, .14), 0 24px 60px -24px rgba(5, 20, 60, .8);
  transition: box-shadow .3s;
}
.hc-pill:focus-within { box-shadow: inset 0 1px 0 rgba(255, 255, 255, .26), inset 0 0 0 1px rgba(150, 195, 255, .5), 0 24px 60px -24px rgba(5, 20, 60, .8); }
.hc-mirror, .hc-input {
  position: absolute; inset: 0;
  padding: 0 76px 0 32px;
  font: 600 18px/72px var(--font-sans); letter-spacing: -.02em;
  text-align: left; white-space: pre; overflow: hidden;
}
.hc-mirror { color: rgba(225, 232, 245, .5); pointer-events: none; }
.hc-mirror b { color: #fff; font-weight: 700; }
.hc-input { width: 100%; border: 0; border-radius: inherit; background: transparent; color: transparent; caret-color: #fff; outline: none; }
.hc-input::placeholder { color: rgba(225, 232, 245, .42); }
.hc-input:focus-visible { outline: none; }
.hc-pill.is-evap .hc-mirror { opacity: 0; transition: opacity .25s; }
.hc-enter {
  position: absolute; right: 14px; top: 14px;
  width: 44px; height: 44px; border: 0; border-radius: 50%;
  display: grid; place-items: center;
  background: transparent; color: rgba(225, 232, 245, .6); cursor: pointer;
  transition: background .2s, color .2s;
}
.hc-enter svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
@media (hover: hover) { .hc-enter:hover { background: rgba(255, 255, 255, .08); color: #fff; } }
.hc-out.vd { display: block; width: min(720px, 100%); min-height: 120px; margin-top: 18px; text-align: left; }
.hc-empty {
  margin: 0; padding: 18px; border-radius: 18px;
  border: 1px dashed rgba(255, 255, 255, .16);
  font-size: 14px; color: rgba(225, 232, 245, .45); text-align: center;
}
.hc-ans {
  padding: 18px 20px; border-radius: 20px;
  background: rgba(14, 18, 30, .62);
  -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .1), inset 0 0 0 1px rgba(255, 255, 255, .08);
  animation: hc-in .5s var(--ease) both;
}
.hc-steps { display: flex; flex-wrap: wrap; gap: 6px 14px; margin: 0 0 10px; font-family: var(--font-mono); font-size: 11.5px; color: rgba(225, 232, 245, .5); }
.hc-steps span::before { content: "✓ "; color: #5fcfa6; }
.hc-a { margin: 0; font-size: 15.5px; line-height: 1.65; color: #eef2f8; word-break: keep-all; }
.hc-ans .vd-card { margin-top: 12px; background: rgba(255, 255, 255, .04); }
.hc-dust { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
@keyframes hc-in { from { opacity: 0; transform: translateY(10px) scale(.985); filter: blur(4px); } }
@media (max-width: 640px) {
  .hc-pill { height: 60px; }
  .hc-mirror, .hc-input { padding: 0 60px 0 22px; font-size: 15px; line-height: 60px; }
  .hc-enter { right: 8px; top: 8px; }
  .hc-ans { padding: 16px; }
}
@media (prefers-reduced-motion: reduce) { .hc-ans { animation: none; } .hero-hint svg { animation: none; } }

/* 이어지는 점묘 한 줄 (gcbiopharma 처럼 스크롤로 이어짐) — 섹션 콘텐츠 뒤, 점 캔버스 위 */
#story > .scene { z-index: 1; }
.thread { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; }

/* ── linear.app 섹션 문법 ─────────────────
   머리: 제목(왼쪽) | 설명 + 자세히 보기(오른쪽) → 장면 → UI 조각 → 기능 목록. 섹션 사이는 헤어라인 */
.scene + .scene { box-shadow: inset 0 1px 0 var(--line); }
.lin-head {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 24px 48px; align-items: start;
}
.lin-lead { margin: 4px 0 0; max-width: 34em; font-size: clamp(17px, 1.45vw, 21px); line-height: 1.55; letter-spacing: -.015em; color: #c3c8d1; text-wrap: pretty; }
.lin-more { display: inline-flex; align-items: center; gap: 6px; margin-top: 22px; font-size: 15px; color: var(--text-2); transition: color .2s; }
.lin-more svg { width: 15px; height: 15px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; transition: transform .2s; }
@media (hover: hover) { .lin-more:hover { color: var(--text); } .lin-more:hover svg { transform: translateX(3px); } }

/* UI 조각(한 장) — 깔끔하게 부분만: 가운데 한 장, 아래로 흐려짐 */
.frag-one { position: relative; width: min(760px, 100%); margin: clamp(48px, 7vw, 80px) auto 0; }
.frag-one > .sw-shell {
  -webkit-mask-image: linear-gradient(180deg, #000 60%, transparent);
  mask-image: linear-gradient(180deg, #000 60%, transparent);
}
.frag-crumb { margin: 0 0 16px; font-size: 13px; color: #83838c; }
.frag-crumb span { margin: 0 4px; color: #6f6f78; }
.frag-list { margin: 0; padding: 0; list-style: none; }
.frag-list li { display: grid; grid-template-columns: 96px 1fr; gap: 12px; padding: 12px 0; border-top: 1px solid rgba(255, 255, 255, .07); font-size: 14.5px; color: #a9a9b1; }
.frag-list li:first-child { border-top: 0; }
.frag-list b { color: #ececee; font-weight: 600; }
.frag-hist { display: flex; align-items: center; flex-wrap: wrap; gap: 6px; margin: 14px 0 6px; font-size: 13px; color: #a9a9b1; }
.frag-hist .sw-av { width: 20px; height: 20px; font-size: 10px; }
.frag-hist i { font-style: normal; color: #6ea8ff; margin: 0 4px; }
.frag-board { width: min(980px, 100%); }
.frag-board > .sw-shell {
  -webkit-mask-image: linear-gradient(180deg, #000 70%, transparent);
  mask-image: linear-gradient(180deg, #000 70%, transparent);
}
.frag-board .sw-col-b { min-height: 260px; }

/* 대표 화면 — 1280px 로 그리고 프레임 폭에 맞춰 통째로 축소 (main.js 가 --fs · 높이를 넣는다) */
.frame-fit { position: relative; margin-top: clamp(48px, 7vw, 88px); height: 760px; }
.frame-inner { position: absolute; left: 0; top: 0; width: 1280px; transform-origin: 0 0; transform: scale(var(--fs, 1)); }

/* 2 · 기억 */
/* 여러 사람의 기억(위 호) → 슈퍼워크 심볼(가운데) → 새 담당자(아래). 곡선·흐르는 점은 dots.js converge.
   좁은 틀에 가두지 않고 화면 폭 전체를 쓴다 */
.conv {
  position: relative;
  width: 100vw; margin: clamp(56px, 8vw, 96px) 0 0 calc(50% - 50vw);
  height: clamp(720px, 96vh, 940px);
}
.conv-src, .conv-dest {
  position: absolute; transform: translateX(-50%);
  display: grid; grid-template-columns: auto 1fr; align-items: center; column-gap: 10px;
  width: 200px; padding: 12px 14px; border-radius: 16px;
  background: rgba(20, 22, 28, .72);
  -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .08), 0 0 0 1px rgba(255, 255, 255, .08);
  text-align: left;
}
.conv-src { left: var(--x); top: var(--y); }
.conv-src span, .conv-dest span { display: flex; flex-direction: column; min-width: 0; line-height: 1.3; }
.conv-src b, .conv-dest b { font-size: 14px; font-weight: 600; white-space: nowrap; }
.conv-src small, .conv-dest small { font-size: 12px; color: var(--text-3); white-space: nowrap; }
.conv-src em, .conv-dest em { grid-column: 1 / -1; margin-top: 10px; padding-top: 9px; border-top: 1px solid var(--line); font-style: normal; font-size: 12.5px; color: var(--text-2); }
.conv-av { width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center; font-style: normal; font-size: 13px; font-weight: 600; color: #fff; background: var(--c, #3a3f4a); }
.conv-av.is-ch { background: rgba(255, 255, 255, .08); color: var(--text-2); }
.conv-av.is-ch svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.conv-core { position: absolute; left: 50%; top: 52%; transform: translate(-50%, -50%); display: flex; flex-direction: column; align-items: center; gap: 16px; }
.conv-logo {
  width: 104px; height: 104px; border-radius: 30px;
  display: grid; place-items: center;
  background: linear-gradient(160deg, #3b8dff, #1550c8);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .35), 0 0 0 1px rgba(150, 200, 255, .35), 0 0 80px rgba(31, 120, 240, .45);
}
.conv-logo svg { width: 50px; height: 50px; fill: #fff; }
.conv-core p { margin: 0; display: flex; flex-direction: column; align-items: center; font-size: 15px; color: var(--text-2); line-height: 1.4; }
.conv-core p b { font-size: 13px; font-weight: 600; letter-spacing: .04em; color: var(--blue-text); }
.conv-dest { left: 50%; bottom: 0; width: 260px; box-shadow: inset 0 1px 0 rgba(255, 255, 255, .1), 0 0 0 1px rgba(110, 168, 255, .45), 0 0 40px rgba(31, 120, 240, .18); }
.conv-av.is-now { background: var(--blue); }
.conv-dest b { color: #fff; }

/* 3 · 음성 — 점 보이스 구체는 왼쪽 마이크 뒤에 깔린다 (dots.js wave) */
.voice-stage { position: relative; margin-top: clamp(48px, 7vw, 88px); }
/* 머리 설명을 아래 AI 어시스턴트 창 왼쪽 끝에 맞춘다 (voice-demo 의 5fr 7fr · 28px 와 같은 칸) */
@media (min-width: 961px) { #voice .lin-head { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); column-gap: 28px; } }
.voice-wave {
  position: absolute; z-index: 0; pointer-events: none;
  left: calc((100% - 28px) * 5 / 24); top: 37%;
  width: min(380px, 40%); aspect-ratio: 1;
  transform: translate(-50%, -50%);
}
.voice-stage #voice-demo { position: relative; z-index: 1; }
.voice-stage .vd-ctrl { background: transparent; box-shadow: none; }

/* 4 · 회의 → 보드 — 대표 화면(.frame-fit) + 내보내기 창 · 할일 보드 조각 (main.js) */

/* LEAN(기본) — 연락 별 대신 카드 테두리가 점으로 빛난다 · 회의록 창과 보드 창 사이로 기록이 흘러간다 (dots.js leanWindows) */
.dots-lean .contact-mark { display: none; }

/* 5 · 연락 */
.s-contact .copy { margin-bottom: 56px; }
.contact-mark { width: 160px; height: 160px; margin: 0 auto 36px; }
.no-dots .contact-mark {
  background: var(--blue-text);
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 3.2c.7 4.6 3.6 7.6 8.8 8.8-5.2 1.2-8.1 4.2-8.8 8.8-.7-4.6-3.6-7.6-8.8-8.8 5.2-1.2 8.1-4.2 8.8-8.8z'/%3E%3C/svg%3E") center / contain no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 3.2c.7 4.6 3.6 7.6 8.8 8.8-5.2 1.2-8.1 4.2-8.8 8.8-.7-4.6-3.6-7.6-8.8-8.8 5.2-1.2 8.1-4.2 8.8-8.8z'/%3E%3C/svg%3E") center / contain no-repeat;
}
.contact-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; text-align: left; }
.offer { display: flex; flex-direction: column; padding: 40px; }
.offer h3 { margin: 0; font-size: 26px; font-weight: 500; letter-spacing: -.03em; }
.offer-sub { margin: 10px 0 0; padding-bottom: 28px; border-bottom: 1px solid var(--line); font-size: 16px; color: var(--text-2); }
.checks, .channels { list-style: none; margin: 0; padding: 24px 0 40px; flex: 1; }
.checks li { display: flex; align-items: center; gap: 14px; padding: 6px 0; font-size: 15px; }
.checks svg { width: 16px; height: 16px; flex: none; fill: none; stroke: var(--text-3); stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.channels li a {
  display: grid; grid-template-columns: 22px 120px 1fr; align-items: center; gap: 14px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
}
.channels li:last-child a { border-bottom: 0; }
.channels svg { width: 18px; height: 18px; fill: none; stroke: var(--text-3); stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.channels .k { color: var(--text-2); }
.channels .v { font-weight: 500; }
@media (hover: hover) { .channels li a:hover .v { color: var(--blue-text); } }

.foot {
  display: flex; justify-content: space-between; gap: 16px;
  width: min(var(--max), 100% - var(--gutter) * 2); margin: 40px auto 0;
  padding: 36px 0 44px;
  border-top: 1px solid var(--line);
  font-size: 14px; color: var(--text-3);
}

/* 스크롤 등장 */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal, .sw-task.card, .sw-act { opacity: 1; transform: none; transition: none; }
}

/* ── 반응형 ─────────────────────────────── */
@media (max-width: 960px) {
  .nav-links { display: none; }
  .lin-head { grid-template-columns: 1fr; }
  .voice-wave { left: 50%; top: 150px; width: min(320px, 80vw); }
  .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .scene { padding: 112px 0 96px; }
  .s-hero { padding: 0; }
  .conv { height: 680px; }
  .conv-src { width: auto; padding: 8px; border-radius: 50%; grid-template-columns: auto; }
  .conv-src span, .conv-src em { display: none; }
  .conv-src:nth-child(2n) { --y: 14%; }
  .conv-logo { width: 84px; height: 84px; border-radius: 24px; }
  .conv-logo svg { width: 40px; height: 40px; }
  .conv-dest { width: min(280px, 86vw); }
  .frag-list li { grid-template-columns: 1fr; gap: 2px; }
  .offer { padding: 28px 24px; }
  .channels li a { grid-template-columns: 22px 1fr; }
  .channels .k { display: none; }
  .foot { flex-direction: column; }
}