:root {
  --bg: #f5f6f8; --card: #fff; --line: #dde1e8; --ink: #14171f; --dim: #626a79; --acc: #d4153a; --acc2: #2257e6;
  --ok: #11a36a; --gold: #e3a400; --wait: #f2c3cb; --rb: #ffd66b;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.7 "IBM Plex Sans KR", "Malgun Gothic", sans-serif; word-break: keep-all; }
a { color: var(--acc2); }
img { max-width: 100%; }
.mono { font-family: "IBM Plex Mono", ui-monospace, monospace; }
.wrap { max-width: 1120px; margin: 0 auto; padding-inline: 24px; }

.fam { font-size: 13px; color: var(--dim); background: #eceef2; }
.fam .wrap { display: flex; gap: 6px 16px; padding-block: 7px; flex-wrap: wrap; }
.fam a { color: var(--dim); text-decoration: none; }
.fam a:hover { color: var(--ink); }
.fam b { color: var(--ink); }

nav { position: sticky; top: 0; z-index: 10; background: rgba(255,255,255,.92); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
nav .wrap { display: flex; justify-content: space-between; align-items: center; padding-block: 12px; gap: 16px; }
.logo { font-weight: 700; font-size: 19px; display: flex; gap: 10px; align-items: center; color: var(--ink); text-decoration: none; white-space: nowrap; }
.logo i { width: 28px; height: 28px; border-radius: 7px; background: linear-gradient(135deg, var(--acc) 50%, var(--acc2) 50%); display: inline-block; }
.menu { display: flex; align-items: center; gap: 4px 20px; flex-wrap: wrap; justify-content: flex-end; }
.menu a { color: var(--dim); text-decoration: none; font-weight: 600; font-size: 15px; }
.menu a:hover { color: var(--ink); }
.menu a.dl { background: var(--ink); color: #fff; padding: 8px 14px; border-radius: 8px; }
.menu button { font: 600 14px "IBM Plex Sans KR", sans-serif; background: none; border: 1px solid var(--line); border-radius: 8px; padding: 6px 10px; cursor: pointer; color: var(--dim); }

.hero { padding-block: 56px 40px; display: grid; grid-template-columns: 1.1fr 1fr; gap: 44px; align-items: center; }
.pill { display: inline-flex; gap: 8px; align-items: center; font: 600 13px "IBM Plex Mono", monospace; background: #fff; border: 1px solid var(--line); border-radius: 99px; padding: 5px 12px; color: var(--dim); }
.pill b { width: 8px; height: 8px; border-radius: 50%; background: var(--ok); }
h1 { font-size: 52px; line-height: 1.12; margin: 18px 0 12px; letter-spacing: -1px; text-wrap: balance; }
h1 em { font-style: normal; color: var(--acc); }
.lead { color: var(--dim); font-size: 18px; max-width: 32em; margin: 0; }
.cta { display: flex; gap: 12px; margin-top: 24px; flex-wrap: wrap; }
.btn { text-decoration: none; font-weight: 700; padding: 13px 20px; border-radius: 10px; display: inline-block; }
.btn.p { background: var(--acc); color: #fff; }
.btn.s { background: #fff; color: var(--ink); border: 1px solid var(--line); }
.note { color: var(--dim); font-size: 14px; margin-top: 10px; }
.shot { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 12px; box-shadow: 0 20px 50px rgba(20,23,31,.08); }
.shot img { width: 100%; display: block; border-radius: 10px; }
.shot .cap { display: flex; justify-content: space-between; gap: 8px; font: 500 13px "IBM Plex Mono", monospace; color: var(--dim); padding: 10px 4px 2px; }

.kpis { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.kpi { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 18px 20px; }
.kpi .v { font: 700 34px/1.1 "IBM Plex Mono", monospace; }
.kpi .v.a { color: var(--acc); }
.kpi .kl { color: var(--dim); font-size: 14px; }

section { padding-block: 52px; }
h2 { font-size: 30px; margin: 0 0 6px; letter-spacing: -.5px; }
.sub { color: var(--dim); margin: 0 0 24px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 24px; }
.card h3 { font-size: 22px; margin: 0 0 10px; }

.timeline .row { display: grid; grid-template-columns: 170px 1fr 70px; gap: 16px; align-items: center; padding: 12px 0; border-bottom: 1px dashed var(--line); }
.timeline .row:last-of-type { border-bottom: 0; }
.row .name { font-weight: 700; }
.row .name small { display: block; font-weight: 400; color: var(--dim); font-size: 13px; }
.frames { display: grid; grid-template-columns: repeat(10, 1fr); gap: 4px; }
.frames i { height: 28px; border-radius: 4px; background: #eef0f4; }
.frames i.in { background: var(--acc2); }
.frames i.wait { background: repeating-linear-gradient(45deg, var(--wait) 0 6px, #fbe5e9 6px 12px); }
.frames i.out { background: var(--acc); }
.frames i.rb { background: var(--rb); }
.row .val { font: 700 22px "IBM Plex Mono", monospace; text-align: right; }
.legend { display: flex; gap: 6px 18px; margin-top: 12px; font-size: 13px; color: var(--dim); flex-wrap: wrap; }
.legend span::before { content: ""; display: inline-block; width: 12px; height: 12px; border-radius: 3px; margin-right: 6px; vertical-align: -1px; background: var(--c); }

.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.steps { margin: 0; padding: 0; list-style: none; }
.steps li { display: grid; grid-template-columns: 34px 1fr; gap: 12px; padding: 10px 0; }
.steps li b { width: 30px; height: 30px; border-radius: 8px; background: var(--ink); color: #fff; display: grid; place-items: center; font: 700 14px "IBM Plex Mono", monospace; }
.steps li span { color: var(--dim); display: block; font-size: 14px; }
table.keys { width: 100%; border-collapse: collapse; }
table.keys td { padding: 11px 6px; border-bottom: 1px solid var(--line); }
table.keys td:first-child { width: 48px; }
table.keys td:last-child { text-align: right; }
.k { display: inline-grid; place-items: center; min-width: 40px; height: 30px; padding: 0 8px; border-radius: 7px; border: 1px solid var(--line); border-bottom-width: 3px; font: 700 13px "IBM Plex Mono", monospace; background: #fafbfc; }
.dot { width: 26px; height: 26px; border-radius: 50%; display: inline-grid; place-items: center; color: #fff; font: 700 12px "IBM Plex Mono", monospace; }
.gallery img { width: 100%; display: block; border-radius: 12px; border: 1px solid var(--line); }
.gallery figure { margin: 0; }
.gallery figcaption { color: var(--dim); font-size: 13px; padding-top: 6px; }
.launcher { display: grid; grid-template-columns: 1.4fr 1fr; gap: 28px; align-items: center; }
.launcher img { border-radius: 12px; border: 1px solid var(--line); box-shadow: 0 16px 40px rgba(20,23,31,.08); display: block; width: 100%; }
.launcher ul { margin: 0; padding-left: 1.2em; color: var(--dim); }
.launcher li { margin: 6px 0; }
.launcher li b { color: var(--ink); }

.tips li { margin: 8px 0; }
.faq details { border-bottom: 1px solid var(--line); padding: 14px 0; }
.faq summary { font-weight: 700; cursor: pointer; }
.faq p { color: var(--dim); margin: 8px 0 0; }

.download { text-align: center; }
.download .card { padding: 40px 24px; }
.download .size { font: 600 14px "IBM Plex Mono", monospace; color: var(--dim); margin-top: 8px; }

footer { color: var(--dim); font-size: 13px; padding-block: 30px; border-top: 1px solid var(--line); }
footer p { margin: 4px 0; }
footer a { color: var(--dim); }

@media (max-width: 860px) {
  .hero, .grid2, .launcher { grid-template-columns: 1fr; }
  .kpis { grid-template-columns: repeat(2, 1fr); }
  .grid3 { grid-template-columns: 1fr; }
  h1 { font-size: 38px; }
  .timeline .row { grid-template-columns: 1fr; gap: 8px; }
  .row .val { text-align: left; }
  .menu a:not(.dl) { display: none; }
}