/* ============================================================
   三國志 CLASSIC — brand site
   ink ground · gold hairlines · cinnabar seal accents
   ============================================================ */

@font-face{
  font-family:"Noto Serif KR";font-weight:400;font-display:swap;
  src:url("assets/NotoSerifKR-Regular.ttf") format("truetype");
}
@font-face{
  font-family:"Noto Serif KR";font-weight:500;font-display:swap;
  src:url("assets/NotoSerifKR-Medium.ttf") format("truetype");
}
@font-face{
  font-family:"Noto Serif KR";font-weight:600;font-display:swap;
  src:url("assets/NotoSerifKR-SemiBold.ttf") format("truetype");
}
@font-face{
  font-family:"Noto Serif KR";font-weight:900;font-display:swap;
  src:url("assets/NotoSerifKR-Black.ttf") format("truetype");
}

:root{
  --ink:#0e0d0b;
  --ink-2:#14110d;
  --ink-3:#1c1813;
  --cream:#ece6d8;
  --cream-dim:#b8b0a0;
  --gold:#c9a227;
  --gold-soft:#d8bd6a;
  --cinnabar:#b3402f;
  --line:rgba(201,162,39,.28);
  --serif:"Noto Serif KR", "Songti SC", "SimSun", serif;
  --sans:"Pretendard", "Apple SD Gothic Neo", "Malgun Gothic", "Segoe UI", system-ui, sans-serif;
  --maxw:1180px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--sans);
  background:var(--ink);
  color:var(--cream);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}

/* faint paper grain over everything */
body::after{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:1;opacity:.04;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='120' height='120'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

/* ── header ───────────────────────────────────────────────── */
.site-head{
  position:fixed;top:0;left:0;right:0;z-index:50;
  display:flex;align-items:center;gap:28px;
  padding:18px clamp(20px,4vw,48px);
  background:linear-gradient(to bottom, rgba(10,9,8,.82), rgba(10,9,8,0));
  transition:background .4s ease, padding .4s ease;
}
.site-head.scrolled{
  background:rgba(11,10,8,.92);
  border-bottom:1px solid var(--line);
  padding-top:12px;padding-bottom:12px;
  backdrop-filter:blur(6px);
}
.brand{display:flex;align-items:center;gap:10px;font-weight:600;letter-spacing:.22em;font-size:13px}
.brand img{width:22px;height:22px;opacity:.92}
.nav{display:flex;gap:26px;margin-left:auto;font-size:14px;letter-spacing:.04em}
.nav a{color:var(--cream-dim);position:relative;padding:4px 0;transition:color .25s}
.nav a:hover{color:var(--cream)}
.nav a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:1px;background:var(--gold);transition:width .3s}
.nav a:hover::after{width:100%}
.head-actions{display:flex;align-items:center;gap:16px}
.lang-toggle{
  font-family:var(--sans);background:none;border:1px solid var(--line);color:var(--cream-dim);
  border-radius:999px;padding:5px 12px;font-size:12px;letter-spacing:.1em;cursor:pointer;
  display:flex;gap:5px;align-items:center;transition:border-color .25s,color .25s;
}
.lang-toggle:hover{border-color:var(--gold);color:var(--cream)}
.lang-toggle .sep{opacity:.4}
.lang-toggle .on{color:var(--gold);font-weight:600}

/* ── buttons ──────────────────────────────────────────────── */
.btn-wish{
  display:inline-flex;align-items:center;gap:8px;
  background:linear-gradient(180deg,var(--gold-soft),var(--gold));
  color:#241a05;font-weight:600;letter-spacing:.04em;
  padding:13px 26px;border-radius:3px;font-size:15px;
  border:1px solid rgba(255,240,200,.35);
  box-shadow:0 6px 24px rgba(201,162,39,.18);
  transition:transform .2s ease, box-shadow .2s ease, filter .2s ease;
}
.btn-wish:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 10px 30px rgba(201,162,39,.3)}
.btn-wish.small{padding:8px 16px;font-size:13px}
.btn-ghost{
  display:inline-flex;align-items:center;
  border:1px solid var(--line);color:var(--cream);
  padding:13px 24px;border-radius:3px;font-size:15px;letter-spacing:.04em;
  transition:border-color .25s,background .25s;
}
.btn-ghost:hover{border-color:var(--gold);background:rgba(201,162,39,.08)}

/* ── hero ─────────────────────────────────────────────────── */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;justify-content:center;overflow:hidden}
.hero-bg{
  position:absolute;inset:-6% -6% 0 -6%;background-size:cover;background-position:center 38%;
  transform:scale(1.04);animation:slowdrift 26s ease-in-out infinite alternate;
}
@keyframes slowdrift{from{transform:scale(1.04) translateY(0)}to{transform:scale(1.09) translateY(-14px)}}
.hero-veil{
  position:absolute;inset:0;
  background:
    radial-gradient(120% 90% at 50% 30%, rgba(10,9,8,.15), rgba(10,9,8,.78) 70%, var(--ink) 100%),
    linear-gradient(to bottom, rgba(10,9,8,.4), rgba(10,9,8,.2) 40%, var(--ink) 98%);
}
.hero-inner{position:relative;z-index:2;text-align:center;padding:120px 24px 80px;max-width:840px}
.kicker{
  color:var(--gold-soft);letter-spacing:.34em;font-size:12px;text-transform:uppercase;
  margin-bottom:26px;opacity:0;animation:rise .9s .1s ease forwards;
}
.hero-logo{
  width:min(540px,82vw);margin:0 auto 28px;
  filter:drop-shadow(0 8px 40px rgba(0,0,0,.6));
  opacity:0;animation:rise 1s .25s ease forwards;
}
.hero-line{
  font-family:var(--serif);font-weight:500;
  font-size:clamp(20px,3.1vw,30px);line-height:1.5;color:var(--cream);
  letter-spacing:.01em;margin-bottom:36px;
  opacity:0;animation:rise 1s .5s ease forwards;
}
.hero-cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;opacity:0;animation:rise 1s .7s ease forwards}
.hero-meta{
  margin-top:40px;color:var(--cream-dim);font-size:13px;letter-spacing:.06em;
  display:flex;gap:12px;justify-content:center;flex-wrap:wrap;align-items:center;
  opacity:0;animation:rise 1s .9s ease forwards;
}
.hero-meta .dot{opacity:.4}
@keyframes rise{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}

/* shared section width */
.section-head{max-width:var(--maxw);margin:0 auto;padding:0 clamp(20px,5vw,40px)}
.section-head .label{
  display:inline-block;color:var(--gold);letter-spacing:.3em;font-size:12px;
  text-transform:uppercase;margin-bottom:14px;
  padding-left:34px;position:relative;
}
.section-head .label::before{content:"";position:absolute;left:0;top:50%;width:24px;height:1px;background:var(--gold)}
.section-head h2{font-family:var(--serif);font-weight:600;font-size:clamp(24px,3.4vw,38px);line-height:1.35}
.section-head p{color:var(--cream-dim);max-width:60ch;margin-top:16px;font-size:16px}

/* ── story ────────────────────────────────────────────────── */
.story{
  display:grid;grid-template-columns:1.15fr .85fr;align-items:center;gap:clamp(30px,5vw,72px);
  max-width:var(--maxw);margin:0 auto;padding:clamp(80px,12vh,140px) clamp(20px,5vw,40px);
}
.story-art{position:relative;border:1px solid var(--line);border-radius:4px;overflow:hidden}
.story-art::after{content:"";position:absolute;inset:0;box-shadow:inset 0 0 70px rgba(10,9,8,.55)}
.story-art img{width:100%}
.story-copy{position:relative}
.rune{
  font-family:var(--serif);font-weight:900;color:var(--cinnabar);
  font-size:84px;line-height:.7;opacity:.85;display:block;margin-bottom:8px;
  text-shadow:0 2px 12px rgba(0,0,0,.4);
}
.story-copy h2{font-family:var(--serif);font-weight:600;font-size:clamp(26px,3.6vw,40px);line-height:1.38;margin-bottom:24px}
.story-copy p{color:#cfc7b6;font-size:17px;max-width:48ch}
.story-copy .aside{
  margin-top:26px;font-family:var(--serif);font-style:normal;color:var(--gold-soft);
  font-size:16px;border-left:2px solid var(--line);padding-left:16px;
}

/* ── eras band ────────────────────────────────────────────── */
.eras,.closing{position:relative;padding:clamp(90px,14vh,150px) 0;overflow:hidden}
.band-art{position:absolute;inset:0;background-size:cover;background-position:center;}
.band-veil{position:absolute;inset:0;background:linear-gradient(to bottom,var(--ink),rgba(10,9,8,.72) 30%,rgba(10,9,8,.72) 70%,var(--ink))}
.band-veil.strong{background:linear-gradient(to bottom,var(--ink),rgba(10,9,8,.82) 35%,var(--ink))}
.eras>*:not(.band-art):not(.band-veil),
.closing>*:not(.band-art):not(.band-veil){position:relative;z-index:2}
.eras .section-head{text-align:center}
.eras .section-head .label{padding-left:0}
.eras .section-head .label::before{display:none}
.eras .section-head p{margin-left:auto;margin-right:auto}
.timeline{
  list-style:none;max-width:var(--maxw);margin:54px auto 0;padding:0 clamp(20px,5vw,40px);
  display:grid;grid-template-columns:repeat(7,1fr);gap:0;position:relative;
}
.timeline::before{
  content:"";position:absolute;left:clamp(20px,5vw,40px);right:clamp(20px,5vw,40px);top:46px;
  height:1px;background:linear-gradient(to right,transparent,var(--line) 8%,var(--line) 92%,transparent);
}
.timeline li{position:relative;text-align:center;padding-top:70px}
.timeline li::before{
  content:"";position:absolute;top:41px;left:50%;transform:translateX(-50%);
  width:10px;height:10px;border-radius:50%;background:var(--ink);border:1px solid var(--gold);
  transition:background .3s, box-shadow .3s;
}
.timeline li:hover::before{background:var(--gold);box-shadow:0 0 12px rgba(201,162,39,.6)}
.timeline li b{
  display:block;font-family:var(--serif);font-weight:600;font-size:clamp(18px,2.2vw,26px);color:var(--gold-soft);
  position:absolute;top:0;left:0;right:0;
}
.timeline li span{display:block;font-size:13px;color:var(--cream-dim);letter-spacing:.02em;padding:0 4px}

/* ── systems ──────────────────────────────────────────────── */
.systems{max-width:var(--maxw);margin:0 auto;padding:clamp(40px,8vh,90px) clamp(20px,5vw,40px)}
.sys{
  display:grid;grid-template-columns:1.08fr .92fr;align-items:center;gap:clamp(30px,5vw,70px);
  padding:clamp(50px,8vh,90px) 0;border-bottom:1px solid rgba(201,162,39,.12);
}
.sys:last-child{border-bottom:none}
.sys.reverse .sys-shot{order:2}
.sys-shot{position:relative;border:1px solid var(--line);border-radius:5px;overflow:hidden;box-shadow:0 24px 60px rgba(0,0,0,.45)}
.sys-shot::after{content:"";position:absolute;inset:0;box-shadow:inset 0 0 0 1px rgba(255,240,200,.04)}
.sys-shot img{width:100%;transition:transform .8s cubic-bezier(.2,.8,.2,1)}
.sys-shot:hover img{transform:scale(1.03)}
.sys-copy .num{
  font-family:var(--serif);font-weight:600;font-size:15px;color:var(--cinnabar);
  letter-spacing:.2em;display:block;margin-bottom:14px;
}
.sys-copy h3{font-family:var(--serif);font-weight:600;font-size:clamp(21px,2.7vw,30px);line-height:1.4;margin-bottom:18px}
.sys-copy p{color:#cfc7b6;font-size:16.5px;max-width:46ch}

/* ── features ─────────────────────────────────────────────── */
.features{background:var(--ink-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.features-grid{
  max-width:var(--maxw);margin:0 auto;padding:clamp(70px,11vh,120px) clamp(20px,5vw,40px);
  display:grid;grid-template-columns:.7fr 1.3fr;gap:clamp(30px,5vw,60px);align-items:start;
}
.features-grid h2{font-family:var(--serif);font-weight:600;font-size:clamp(24px,3vw,34px);line-height:1.3}
.features-grid ul{list-style:none;display:grid;gap:2px}
.features-grid li{
  position:relative;padding:16px 0 16px 30px;font-size:16.5px;color:#d6cfbe;
  border-bottom:1px solid rgba(201,162,39,.1);
}
.features-grid li:last-child{border-bottom:none}
.features-grid li::before{
  content:"";position:absolute;left:0;top:24px;width:9px;height:9px;
  background:var(--gold);transform:rotate(45deg);opacity:.8;
}

/* ── media gallery ────────────────────────────────────────── */
.media{max-width:var(--maxw);margin:0 auto;padding:clamp(80px,12vh,140px) clamp(20px,5vw,40px)}
.media .section-head{padding:0;margin-bottom:38px}
.gallery{
  display:grid;grid-template-columns:repeat(2,1fr);gap:16px;
}
.g-item{position:relative;overflow:hidden;border:1px solid var(--line);border-radius:4px;aspect-ratio:16/9}
.g-item img{width:100%;height:100%;object-fit:cover;transition:transform .7s ease,filter .5s ease;filter:saturate(.92)}
.g-item:hover img{transform:scale(1.05);filter:saturate(1.05)}
.g-item::after{content:"";position:absolute;inset:0;box-shadow:inset 0 0 50px rgba(10,9,8,.4);pointer-events:none}

/* ── closing ──────────────────────────────────────────────── */
.closing{text-align:center}
.closing-inner{max-width:720px;margin:0 auto;padding:0 24px}
.closing .hero-line{animation:none;opacity:1;margin-bottom:32px}
.closing .note{margin-top:20px;color:var(--cream-dim);font-size:14px;letter-spacing:.04em}

/* ── footer ───────────────────────────────────────────────── */
.site-foot{
  text-align:center;padding:60px 24px 70px;border-top:1px solid var(--line);background:var(--ink);
}
.foot-mark{width:150px;margin:0 auto 22px;opacity:.8}
.foot-game{font-family:var(--serif);font-size:16px;color:var(--cream);letter-spacing:.04em;margin-bottom:8px}
.foot-copy{color:var(--cream-dim);font-size:13px;letter-spacing:.04em}

/* placeholder Steam button nudge */
.shake{animation:nudge .45s ease}
@keyframes nudge{0%,100%{transform:translateX(0)}20%{transform:translateX(-5px)}40%{transform:translateX(5px)}60%{transform:translateX(-3px)}80%{transform:translateX(3px)}}

/* ── reveal-on-scroll ─────────────────────────────────────── */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .9s ease, transform .9s cubic-bezier(.2,.8,.2,1)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .hero-bg{animation:none}
  .kicker,.hero-logo,.hero-line,.hero-cta,.hero-meta{animation:none;opacity:1}
}

/* ── responsive ───────────────────────────────────────────── */
@media (max-width:900px){
  .nav{display:none}
  .story{grid-template-columns:1fr}
  .story-art{order:2}
  .sys{grid-template-columns:1fr;gap:24px}
  .sys.reverse .sys-shot{order:0}
  .features-grid{grid-template-columns:1fr;gap:24px}
  .timeline{grid-template-columns:repeat(4,1fr);row-gap:38px}
  .timeline::before{display:none}
  .timeline li{padding-top:0}
  .timeline li::before{display:none}
  .timeline li b{position:static}
  .timeline li span{margin-top:4px}
  .gallery{grid-template-columns:1fr 1fr}
}
@media (max-width:560px){
  .head-actions .btn-wish.small span{display:none}
  .btn-wish.small::after{content:"♡"}
  .gallery{grid-template-columns:1fr}
}