:root{
  --bg:#060708; --bg2:#0b0d0f; --ink:#e1e4de; --mute:#7f867d; --line:rgba(215,218,211,.14);
  --green:#4ff08a; --green-dim:#1f7a44; --green-ink:#9ad9ae; --red:#c8202b; --amber:#f1e9b8;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --sans:"IBM Plex Sans KR","Pretendard","Apple SD Gothic Neo","Noto Sans KR",system-ui,sans-serif;
  --disp:"Archivo","Inter",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--bg)}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-weight:400;font-size:17px;line-height:1.9;
  -webkit-font-smoothing:antialiased;overflow-x:hidden}
:lang(ko){word-break:keep-all}
a{color:inherit;text-decoration:none}
img,video{display:block;max-width:100%;height:auto}
.mono{font-family:var(--mono)}

/* top bar */
.top{position:fixed;inset:0 0 auto 0;z-index:20;display:flex;justify-content:space-between;align-items:center;
  padding:18px 28px;font-family:var(--mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;
  mix-blend-mode:difference;color:#fff}
.top-brand{font-weight:600}
.top-links{display:flex;gap:22px}
.top-links a{opacity:.7;transition:opacity .2s}
.top-links a:hover{opacity:1}
.top-links .ext{opacity:1}

/* hero */
.hero{position:relative;min-height:100svh;display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;padding:120px 24px 90px;overflow:hidden}
#stars{position:fixed;inset:0;width:100%;height:100%;pointer-events:none;z-index:0}
.hero,main,.foot{position:relative;z-index:1}
.hero>*{position:relative}
.orbit{position:absolute;left:50%;top:50%;width:clamp(640px,82vw,1180px);height:auto;transform:translate(-50%,-56%) rotate(-7deg);opacity:.42;pointer-events:none}
.orbit ellipse{fill:none;stroke:var(--green);stroke-width:1;vector-effect:non-scaling-stroke}
.orbit .inner{stroke-opacity:.45}
.orbit .node{fill:var(--green);filter:drop-shadow(0 0 4px rgba(79,240,138,.9))}
.orbit .node2{fill:var(--amber)}
.mark{position:absolute;width:14px;height:14px;opacity:.5}
.mark::before,.mark::after{content:"";position:absolute;background:var(--ink)}
.mark::before{left:6px;top:0;width:1px;height:14px}
.mark::after{top:6px;left:0;width:14px;height:1px}
.mark.tr{right:28px;top:84px}.mark.bl{left:28px;bottom:36px}.mark.br{right:28px;bottom:36px}
.eyebrow{font-family:var(--mono);font-size:11px;letter-spacing:.32em;color:var(--mute);margin:0 0 30px}
.logo{margin:0;display:flex;align-items:center;justify-content:center;gap:.22em;flex-wrap:wrap;line-height:1}
.logo .word{font-family:var(--disp);font-weight:800;font-stretch:125%;font-size:clamp(58px,11.5vw,150px);letter-spacing:.06em;color:#fff}
.logo .digits{height:clamp(44px,8.4vw,110px);width:auto;filter:drop-shadow(0 0 10px rgba(79,240,138,.45)) drop-shadow(0 0 28px rgba(79,240,138,.18))}
.sub{margin:22px 0 0;display:flex;flex-direction:column;gap:6px;align-items:center}
.sub .ko{font-weight:500;font-size:clamp(22px,3.2vw,34px);color:#fff}
.sub .en{font-family:var(--mono);font-size:12px;letter-spacing:.42em;color:var(--green-ink);padding-left:.42em}
.tag{max-width:560px;margin:34px auto 0;color:var(--ink);font-size:17px;line-height:1.9}
.readouts{display:flex;gap:34px;justify-content:center;flex-wrap:wrap;margin:44px 0 0;font-family:var(--mono);font-size:12px;letter-spacing:.1em}
.ro{display:flex;align-items:baseline;gap:10px;padding:8px 14px;border:1px solid var(--line);border-radius:2px;background:rgba(0,0,0,.35)}
.ro .lbl{color:var(--mute);font-size:10px}
.ro .val{color:var(--green);font-weight:500;text-shadow:0 0 8px rgba(79,240,138,.5);font-variant-numeric:tabular-nums}
.cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin:40px 0 0}
.btn{font-family:var(--mono);font-size:17px;font-weight:700;letter-spacing:.12em;color:#fff;padding:14px 10px;border-bottom:1px solid transparent;transition:.2s}
.btn:hover{color:var(--green);border-bottom-color:var(--green)}
.btn.ghost{color:var(--mute)}
.btn.ghost:hover{color:#fff;border-bottom-color:#fff}
.release{font-family:var(--mono);font-size:11px;letter-spacing:.22em;color:var(--mute);margin:26px 0 0}
.scroll{position:absolute;left:50%;bottom:34px;transform:translateX(-50%);font-family:var(--mono);font-size:10px;letter-spacing:.3em;color:var(--mute);display:flex;flex-direction:column;align-items:center;gap:10px}
.scroll span{width:1px;height:38px;background:linear-gradient(var(--mute),transparent);animation:drop 2.4s ease-in-out infinite}
@keyframes drop{0%{transform:scaleY(0);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}51%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}

/* FDAI attitude indicator (scroll instrument) */
.fdai{position:fixed;left:24px;top:88px;z-index:25;width:80px;display:flex;flex-direction:column;align-items:center;gap:5px;cursor:pointer;user-select:none}
.fdai-svg{width:80px;height:80px;display:block;filter:drop-shadow(0 4px 14px rgba(0,0,0,.7))}
.fd-bezel{fill:#0b0d0f;stroke:#3b403d;stroke-width:1.2}
.fd-ticks line{stroke:rgba(215,218,211,.55);stroke-width:1}
.fd-sky{fill:#0d1420}
.fd-gnd{fill:#16402a}
.fd-horizon{stroke:var(--green);stroke-width:1.3}
.fd-ladder line{stroke:rgba(215,218,211,.55);stroke-width:.8}
.fd-ac line{stroke:var(--amber);stroke-width:1.8;stroke-linecap:round}
.fd-ac circle{fill:var(--amber)}
.fd-roll{fill:var(--amber)}
.fd-read{display:flex;gap:6px;align-items:baseline;font-family:var(--mono);font-size:9.5px;letter-spacing:.12em;color:var(--mute);line-height:1}
.fd-read b{color:var(--green);font-weight:500;font-variant-numeric:tabular-nums;min-width:3ch;text-align:right;text-shadow:0 0 6px rgba(79,240,138,.5)}
.fdai:hover .fd-bezel{stroke:var(--green)}

/* entries */
main{position:relative;z-index:1}
.entry{padding:110px 24px 40px;max-width:1080px;margin:0 auto}
.entry-head{display:grid;grid-template-columns:64px 1fr;gap:20px;align-items:start;max-width:620px;margin:0 auto 34px}
.num{font-family:var(--mono);font-size:12px;color:var(--green);letter-spacing:.2em;padding-top:10px;position:relative}
.num::after{content:"";position:absolute;left:0;top:34px;width:38px;height:1px;background:var(--green-dim)}
.entry h2,.transmission h2{margin:0;display:flex;flex-direction:column;gap:8px}
.entry h2 .en,.transmission h2 .en{font-family:var(--mono);font-size:12px;letter-spacing:.3em;color:var(--mute);font-weight:500}
.entry h2 .ko,.transmission h2 .ko{font-size:clamp(26px,3.4vw,38px);font-weight:700;line-height:1.3;color:#fff}
.entry-body{max-width:620px;margin:0 auto}
.entry-body p{margin:0 0 20px}
.entry-body p:last-child{margin:0}

/* plates */
.plate{margin:56px 0 0}
.frame{position:relative;border:1px solid var(--line);padding:14px;background:var(--bg2);
  background-image:radial-gradient(circle,#8a8f88 0 1.6px,#2a2d2b 2.4px,transparent 3.4px),radial-gradient(circle,#8a8f88 0 1.6px,#2a2d2b 2.4px,transparent 3.4px),radial-gradient(circle,#8a8f88 0 1.6px,#2a2d2b 2.4px,transparent 3.4px),radial-gradient(circle,#8a8f88 0 1.6px,#2a2d2b 2.4px,transparent 3.4px);
  background-size:12px 12px;background-repeat:no-repeat;background-position:1px 1px,calc(100% - 1px) 1px,1px calc(100% - 1px),calc(100% - 1px) calc(100% - 1px)}
.frame img{width:100%;filter:saturate(.95)}
.plate figcaption{display:flex;gap:26px;flex-wrap:wrap;justify-content:center;font-family:var(--mono);font-size:10.5px;letter-spacing:.16em;color:var(--mute);margin-top:14px;text-transform:uppercase}
.plate figcaption span:first-child{color:var(--green-ink)}

/* strips */
.strip{display:flex;justify-content:center;gap:40px;flex-wrap:wrap;padding:70px 24px 20px}
.clip{position:relative;width:min(100%,520px)}
.clip video{width:100%;aspect-ratio:616/192;object-fit:cover;border:1px solid var(--line);opacity:.9}
.clip span{position:absolute;left:0;bottom:-22px;font-family:var(--mono);font-size:10px;letter-spacing:.24em;color:var(--mute)}

/* transmission */
.transmission{padding:120px 24px 40px;max-width:1080px;margin:0 auto}
.transmission .entry-head{margin-bottom:34px}
.yt{position:relative;aspect-ratio:16/9;background:#000;border:1px solid var(--line);overflow:hidden}
.yt iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.yt-play{position:absolute;inset:0;width:100%;height:100%;padding:0;border:0;background:#000;cursor:pointer}
.yt-play img{width:100%;height:100%;object-fit:cover;opacity:.55;transition:opacity .3s}
.yt-play:hover img{opacity:.75}
.yt-btn{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);font-family:var(--mono);font-size:14px;letter-spacing:.2em;color:#fff;padding:14px 18px;border:1px solid rgba(255,255,255,.5);background:rgba(0,0,0,.45);transition:.2s}
.yt-play:hover .yt-btn{border-color:var(--green);color:var(--green)}

/* duo */
.duo{display:grid;grid-template-columns:1fr 1fr;gap:28px;max-width:1080px;margin:0 auto;padding:60px 24px 0}
.duo .plate{margin:0}

/* spec */
.spec{max-width:760px;margin:0 auto;padding:120px 24px 40px}
.spec dl{margin:0;border-top:1px solid var(--line)}
.spec dl>div{display:grid;grid-template-columns:150px 1fr;gap:20px;padding:14px 0;border-bottom:1px solid var(--line)}
.spec dt{font-family:var(--mono);font-size:11px;letter-spacing:.2em;color:var(--mute);padding-top:4px}
.spec dd{margin:0;font-size:15.5px;line-height:1.75}

/* final */
.final{text-align:center;padding:120px 24px 130px}
.final-line{font-size:clamp(20px,2.6vw,28px);font-weight:500;color:#fff;margin:0 0 30px}
.btn.big{font-size:21px;padding:18px 12px;border-bottom:1px solid var(--line)}

/* footer */
.foot{border-top:1px solid var(--line);padding:40px 24px 50px;text-align:center}
.partners{display:flex;align-items:center;justify-content:center;gap:24px;margin:0 0 34px}
.p-logo{height:38px;width:auto}
.p-sep{width:1px;height:54px;background:var(--line)}
.p-dev-logo{height:40px;width:auto}
.partner{display:flex;flex-direction:column;align-items:center;gap:9px;text-decoration:none}
.p-dev{font-family:var(--disp);font-weight:700;font-stretch:125%;font-size:15px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink)}
@media (max-width:600px){.partners{gap:16px}.p-logo{height:30px}.p-dev{font-size:12px}.p-dev-logo{height:32px}}
.foot-links{display:flex;gap:22px;justify-content:center;flex-wrap:wrap;font-family:var(--mono);font-size:12px;letter-spacing:.08em}
.foot-links a{color:var(--mute);transition:color .2s}
.foot-links a:hover{color:var(--green)}
.legal{font-family:var(--mono);font-size:10.5px;line-height:1.9;color:#565c55;margin:14px 0 0;letter-spacing:.02em}

/* reveal */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .9s ease,transform .9s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}.scroll span{animation:none}}

@media (max-width:820px){
  .top{padding:14px 18px;font-size:11px}
  .top-links{gap:14px}
  .top-links a:not(.ext){display:none}
  .mark.tr{top:70px}.mark.bl{left:18px}.mark.tr,.mark.br{right:18px}
  .fdai{display:none}
  .orbit{width:150vw;opacity:.3;top:34%}
  .tag br{display:none}
  .hero{padding:100px 20px 130px}
  .scroll{bottom:40px}
  .mark.bl,.mark.br{bottom:24px}
  .logo{flex-direction:column;gap:14px}
  .readouts{gap:10px}
  .ro{padding:7px 10px}
  .entry{padding:80px 20px 30px}
  .entry-head{grid-template-columns:44px 1fr;gap:12px}
  .plate{margin-top:40px}
  .frame{padding:8px}
  .plate figcaption{gap:12px;font-size:9.5px}
  .strip{gap:40px;padding:50px 20px 10px}
  .transmission{padding:90px 20px 30px}
  .duo{grid-template-columns:1fr;gap:34px;padding-top:44px}
  .spec{padding:90px 20px 30px}
  .spec dl>div{grid-template-columns:1fr;gap:4px}
  .final{padding:90px 20px 100px}
}

@media (max-width:600px){.partners{flex-direction:column;gap:14px}.p-sep{width:64px;height:1px}}

/* language switch */
.lang-switch{display:inline-flex;align-items:center;gap:6px;font-family:var(--mono);font-size:12px;letter-spacing:.12em}
.lang-btn{background:none;border:0;padding:4px 2px;color:var(--mute);font:inherit;letter-spacing:inherit;cursor:pointer;border-bottom:1px solid transparent;transition:.2s}
.lang-btn:hover{color:#fff}
.lang-btn.active{color:var(--green);border-bottom-color:var(--green)}
.lang-sep{color:#3a413a}