:root {
  --bg: #ffffff;
  --bg-2: #f6f7fa;
  --card: #ffffff;
  --line: #e4e6ec;
  --text: #0b0b12;
  --muted: #5d6170;
  --brand: #5b4cf0;
  --brand-hover: #4a3bdc;
  --brand-soft: #eeedff;
  --radius: 14px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, "Noto Sans KR", system-ui, -apple-system, sans-serif;
  line-height: 1.6;
  word-break: keep-all;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 16px; }

/* nav */
nav { position: sticky; top: 0; z-index: 10; backdrop-filter: blur(14px); background: rgba(255,255,255,.85); border-bottom: 1px solid var(--line); }
nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; letter-spacing: -.01em; }
.brand img { width: 26px; height: 26px; }
.nav-links { display: flex; gap: 24px; align-items: center; font-size: 14px; color: var(--muted); }
.nav-links a:hover { color: var(--text); }
.nav-cta { padding: 8px 16px; border-radius: 8px; background: var(--brand); color: #fff !important; font-weight: 600; }
.nav-cta:hover { background: var(--brand-hover); }
@media (max-width: 640px) { .nav-links .hide-sm { display: none; } }

/* hero */
.hero { padding: 96px 0 88px; text-align: center; background: var(--bg-2); border-bottom: 1px solid var(--line); }
.pill { display: inline-flex; align-items: center; gap: 8px; padding: 5px 12px; border-radius: 999px; font-size: 13px; color: var(--muted); background: #fff; border: 1px solid var(--line); }
.pill b { color: var(--brand); font-weight: 600; }
h1 { font-size: clamp(38px, 6.4vw, 68px); line-height: 1.12; letter-spacing: -.035em; margin: 24px 0 20px; font-weight: 700; }
h1 .g { color: var(--brand); }
.lead { font-size: clamp(16px, 2.1vw, 19px); color: var(--muted); max-width: 640px; margin: 0 auto; }
.cta { margin-top: 36px; display: flex; flex-direction: column; align-items: center; gap: 12px; }
.btn-primary {
  display: inline-flex; align-items: center; gap: 10px; padding: 14px 26px; border-radius: 10px;
  background: var(--brand); color: #fff; font-weight: 600; font-size: 17px; transition: background .15s ease;
}
.btn-primary:hover { background: var(--brand-hover); }
.btn-primary svg { width: 20px; height: 20px; }
.cta-meta { font-size: 13px; color: var(--muted); }
.cta-meta a { text-decoration: underline; text-underline-offset: 3px; }

/* hero visual */
.window {
  margin: 64px auto 0; max-width: 920px; border-radius: 14px; border: 1px solid var(--line);
  background: #fff; text-align: left; overflow: hidden;
  box-shadow: 0 24px 60px -24px rgba(17,17,40,.18);
}
.win-bar { display: flex; gap: 7px; padding: 13px 16px; border-bottom: 1px solid var(--line); background: #fafbfc; }
.win-bar i { width: 11px; height: 11px; border-radius: 50%; background: #dfe1e7; }
.win-body { display: grid; grid-template-columns: 200px 1fr; min-height: 300px; }
.win-side { border-right: 1px solid var(--line); padding: 16px 12px; font-size: 13px; color: var(--muted); display: flex; flex-direction: column; gap: 6px; background: #fafbfc; }
.win-side span { padding: 7px 10px; border-radius: 8px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.win-side span.on { background: var(--brand-soft); color: var(--text); font-weight: 500; }
.win-main { padding: 22px; display: flex; flex-direction: column; gap: 14px; font-size: 14px; }
.msg-user { align-self: flex-end; background: #f1f2f6; padding: 10px 14px; border-radius: 12px 12px 4px 12px; max-width: 80%; }
.msg-ai { color: #2b2e3a; max-width: 92%; }
.tool { display: inline-flex; gap: 8px; align-items: center; font-size: 12.5px; color: var(--muted); border: 1px solid var(--line); border-radius: 8px; padding: 6px 10px; margin: 2px 6px 2px 0; }
.tool::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: #22b573; }
.artifact { display: flex; align-items: center; gap: 12px; border: 1px solid var(--line); background: #fff; border-radius: 12px; padding: 12px 14px; max-width: 360px; }
.artifact .ic { width: 34px; height: 34px; border-radius: 8px; background: var(--brand-soft) url(logo.svg) center / 18px no-repeat; flex: none; }
.artifact small { display: block; color: var(--muted); font-size: 12px; }
@media (max-width: 720px) { .win-body { grid-template-columns: 1fr; } .win-side { display: none; } }

/* sections */
section { padding: 96px 0; }
.eyebrow { color: var(--muted); font-weight: 500; font-size: 15px; }
h2 { font-size: clamp(30px, 4.2vw, 44px); letter-spacing: -.03em; line-height: 1.18; margin: 8px 0 14px; font-weight: 700; }
.sub { color: var(--muted); max-width: 620px; font-size: 17px; margin: 0; }
.center { text-align: center; } .center .sub { margin: 0 auto; }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 56px; }
@media (max-width: 900px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .grid { grid-template-columns: 1fr; } }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; transition: border-color .2s, box-shadow .2s; }
.card:hover { border-color: #cfd2db; box-shadow: 0 8px 24px -12px rgba(17,17,40,.12); }
.card .ico { width: 42px; height: 42px; border-radius: 10px; display: grid; place-items: center; background: var(--brand-soft); color: var(--brand); margin-bottom: 18px; }
.card .ico svg { width: 21px; height: 21px; }
.card h3 { margin: 0 0 8px; font-size: 18px; font-weight: 600; letter-spacing: -.01em; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }

.band { background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 48px; counter-reset: s; }
@media (max-width: 800px) { .steps { grid-template-columns: 1fr; } }
.step { position: relative; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.step::before { counter-increment: s; content: "STEP " counter(s); display: inline-block; margin-bottom: 14px; font-size: 12px; font-weight: 600; color: var(--brand); background: var(--brand-soft); padding: 3px 10px; border-radius: 999px; }
.step h3 { margin: 0 0 8px; font-size: 18px; font-weight: 600; }
.step p { margin: 0; color: var(--muted); font-size: 15px; }

.chips { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-top: 40px; }
.chip { padding: 8px 16px; border-radius: 999px; border: 1px solid var(--line); background: #fff; font-size: 14px; color: #2b2e3a; }

/* downloads */
.dl-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 48px; }
@media (max-width: 860px) { .dl-grid { grid-template-columns: 1fr; } }
.dl { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; display: flex; flex-direction: column; gap: 14px; }
.dl.me { border-color: var(--brand); box-shadow: 0 0 0 1px var(--brand) inset; }
.dl-head { display: flex; align-items: center; gap: 12px; }
.dl-head svg { width: 28px; height: 28px; }
.dl-head h3 { margin: 0; font-size: 20px; font-weight: 600; }
.dl-head .tag { margin-left: auto; font-size: 12px; font-weight: 500; padding: 2px 10px; border-radius: 999px; background: var(--brand-soft); color: var(--brand); display: none; }
.dl.me .tag { display: inline-block; }
.dl .req { color: var(--muted); font-size: 14px; margin: 0; }
.dl-btns { display: flex; flex-direction: column; gap: 8px; margin-top: auto; }
.btn { display: flex; justify-content: space-between; align-items: center; padding: 12px 16px; border-radius: 10px; border: 1px solid var(--line); background: #fff; font-weight: 600; font-size: 15px; transition: background .15s, border-color .15s; }
.btn:hover { background: var(--bg-2); border-color: #cfd2db; }
.btn small { color: var(--muted); font-weight: 500; font-size: 12px; }
.dl.me .btn:first-child { background: var(--brand); color: #fff; border-color: transparent; }
.dl.me .btn:first-child:hover { background: var(--brand-hover); }
.dl.me .btn:first-child small { color: rgba(255,255,255,.8); }
.dl-foot { text-align: center; margin-top: 28px; color: var(--muted); font-size: 14px; }
.dl-foot a { color: var(--brand); }

code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; background: #f1f2f6; padding: 2px 6px; border-radius: 6px; color: #2b2e3a; word-break: break-all; }

footer { border-top: 1px solid var(--line); padding: 40px 0; color: var(--muted); font-size: 14px; background: var(--bg-2); }
footer .wrap { display: flex; flex-wrap: wrap; gap: 16px; justify-content: space-between; align-items: center; }
footer a:hover { color: var(--text); }
/* motion */
.win-main { min-height: 300px; transition: opacity .35s ease; }
.win-main.fade { opacity: 0; }
.win-side span { transition: background .3s, color .3s; }
.caret::after { content: ""; display: inline-block; width: 2px; height: 1em; margin-left: 2px; vertical-align: -2px; background: currentColor; animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.tool.run::before { background: #f5a524; animation: pulse 1s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: .25; } }
.pop { animation: pop .45s cubic-bezier(.2,.9,.3,1.3) both; }
@keyframes pop { from { opacity: 0; transform: translateY(8px) scale(.96); } }
.fadein { animation: fadein .4s ease both; }
@keyframes fadein { from { opacity: 0; transform: translateY(4px); } }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

.marquee { margin-top: 40px; overflow: hidden; -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.marquee .chips { margin-top: 0; flex-wrap: nowrap; justify-content: flex-start; width: max-content; animation: marquee 40s linear infinite; }
.marquee:hover .chips { animation-play-state: paused; }
.marquee .chip { white-space: nowrap; }
@keyframes marquee { to { transform: translateX(-50%); } }

@media (prefers-reduced-motion: reduce) {
  .marquee { -webkit-mask-image: none; mask-image: none; }
  .marquee .chips { animation: none; flex-wrap: wrap; justify-content: center; width: auto; }
  .marquee .dup { display: none; }
}
/* platform content */
.eyebrow .num, .mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; letter-spacing: .06em; color: var(--brand); }
.eyebrow .num { margin-right: 6px; }
.pillars { display: grid; grid-template-columns: repeat(4, 1fr); margin: 48px auto 0; max-width: 920px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); text-align: left; }
.pillars div { padding: 20px 22px; border-left: 1px solid var(--line); }
.pillars div:first-child { border-left: 0; }
.pillars b { display: block; font-size: 16px; }
.pillars span { color: var(--muted); font-size: 13px; }
@media (max-width: 760px) { .pillars { grid-template-columns: 1fr 1fr; } .pillars div:nth-child(3) { border-left: 0; } .pillars div:nth-child(n+3) { border-top: 1px solid var(--line); } }

.needs { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; margin-top: 48px; }
@media (max-width: 1000px) { .needs { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .needs { grid-template-columns: 1fr; } }
.need { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; display: flex; flex-direction: column; }
.need .num { font-family: ui-monospace, Menlo, monospace; font-size: 12px; color: var(--brand); }
.need h3 { font-size: 16px; line-height: 1.4; margin: 8px 0; font-weight: 600; }
.need .q { color: var(--muted); font-size: 13.5px; margin: 0 0 16px; }
.need .a { margin: auto 0 0; padding-top: 14px; border-top: 1px dashed var(--line); font-size: 13.5px; color: #2b2e3a; }

.scenes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 48px; }
@media (max-width: 960px) { .scenes { grid-template-columns: 1fr; } }
.scene { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.scene-head { display: flex; justify-content: space-between; align-items: center; }
.live { font-size: 12px; font-weight: 500; color: #12805c; background: #e6f6ef; padding: 2px 10px; border-radius: 999px; }
.scene h3 { font-size: 20px; margin: 12px 0 10px; font-weight: 700; }
.scene .ctx { color: var(--muted); font-size: 14.5px; margin: 0; }
.scene .gain { margin: 16px 0; padding: 12px 14px; background: var(--brand-soft); border-radius: 10px; font-size: 14.5px; font-weight: 500; color: #2a2370; }
.scene ul { margin: 0; padding-left: 18px; color: #2b2e3a; font-size: 14px; }
.scene li { margin: 6px 0; }

.controls { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; margin-top: 48px; }
@media (max-width: 1000px) { .controls { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .controls { grid-template-columns: 1fr; } }
.ctl { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.ctl h3 { margin: 6px 0 14px; font-size: 18px; }
.ctl dl { margin: 0; }
.ctl dt { font-weight: 600; font-size: 14px; margin-top: 12px; }
.ctl dd { margin: 2px 0 0; color: var(--muted); font-size: 13px; }

.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 1000px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .grid-4 { grid-template-columns: 1fr; } }
.grid-4 .card { padding: 24px; }

.adopt { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 40px; }
@media (max-width: 900px) { .adopt { grid-template-columns: 1fr; } }
.ad { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; display: flex; flex-direction: column; }
.ad.hl { border-color: var(--brand); box-shadow: 0 0 0 1px var(--brand) inset; }
.ad h3 { margin: 8px 0 12px; font-size: 20px; }
.ad ul { margin: 0 0 16px; padding-left: 18px; color: var(--muted); font-size: 14.5px; }
.ad li { margin: 6px 0; }
.ad-cta { margin-top: auto; color: var(--brand); font-weight: 600; }

.approve { display: flex; justify-content: space-between; align-items: center; gap: 12px; border: 1px solid #f3d9a4; background: #fff8ea; border-radius: 12px; padding: 10px 14px; font-size: 13px; max-width: 460px; }
.ap-btns { display: flex; gap: 6px; flex: none; }
.ap-btns i { font-style: normal; font-size: 12px; padding: 4px 10px; border-radius: 6px; border: 1px solid var(--line); background: #fff; }
.ap-btns i.ok { background: var(--brand); border-color: var(--brand); color: #fff; }
.ap-btns i.ok.pressed { background: #12805c; border-color: #12805c; }
.approve.done { border-color: #bfe6d3; background: #eefaf4; }
.page-note { color: var(--muted); font-size: 12.5px; }

/* audience switch & cross links */
.seg { display: inline-flex; padding: 3px; border: 1px solid var(--line); border-radius: 999px; background: var(--bg-2); margin-right: 4px; }
.seg a { padding: 5px 12px; border-radius: 999px; font-size: 13px; color: var(--muted); }
.seg a.on { background: #fff; color: var(--text); font-weight: 600; box-shadow: 0 1px 2px rgba(17,17,40,.08); }
.biz { display: grid; grid-template-columns: 1.2fr 1fr; gap: 32px; align-items: center; background: #fff; border: 1px solid var(--line); border-radius: 20px; padding: 40px; }
@media (max-width: 860px) { .biz { grid-template-columns: 1fr; padding: 28px; } }
.biz h2 { margin-top: 6px; }
.biz ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.biz li { display: flex; gap: 12px; align-items: flex-start; font-size: 15px; color: #2b2e3a; }
.biz li::before { content: ""; flex: none; width: 20px; height: 20px; margin-top: 2px; border-radius: 6px; background: var(--brand-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235b4cf0' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 12 4 4 8-8'/%3E%3C/svg%3E") center / 13px no-repeat; }
.btn-ghost { display: inline-flex; align-items: center; gap: 8px; margin-top: 24px; padding: 12px 20px; border-radius: 10px; border: 1px solid var(--line); font-weight: 600; background: #fff; transition: border-color .15s, background .15s; }
.btn-ghost:hover { border-color: var(--brand); color: var(--brand); }
.cta-row { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; }
.cta-row .btn-ghost { margin-top: 0; padding: 14px 22px; font-size: 16px; }