/* ============================================================
   온결 : shared tokens and furniture, used by every page
   ============================================================ */
:root{
  --canvas:#EAEEED;
  --canvas-deep:#0E1719;
  --panel:#F4F7F6;
  --panel-deep:#152225;
  --accent:#1F7A6B;
  --accent-hover:#175E52;
  --accent-text:#175E52;
  --accent-muted:#BFD8D2;
  --accent-glow:#5FCBB4;
  --warm:#D9A88E;
  --text-primary:#101A1C;
  --text-secondary:#4A5B5C;
  --text-on-deep:#E8EEEC;
  --text-on-deep-dim:#9FB3B2;
  --line-deep:rgba(232,238,236,.14);
  --line-light:rgba(16,26,28,.12);

  --display:"Gowun Batang",serif;
  --body:"IBM Plex Sans KR",system-ui,sans-serif;
  /* true mono, for latin and digits only: it carries no hangul, so korean
     set in it falls back and the wide tracking tears the syllables apart */
  --mono:"IBM Plex Mono",ui-monospace,monospace;
  /* the label voice for korean small caps work: body face, tighter tracking */
  --label:"IBM Plex Sans KR",system-ui,sans-serif;
  --label-track:.13em;

  --ease:cubic-bezier(.22,.61,.36,1);
  --ease-soft:cubic-bezier(.4,0,.2,1);
  --tshadow:0 1px 2px rgba(5,10,10,.95),0 3px 12px rgba(5,10,10,.78),0 10px 44px rgba(5,10,10,.8);

  --gut:clamp(20px,5vw,80px);
  --rail:0px;
}
@media (min-width:1180px){ :root{ --rail:104px } }

*,*::before,*::after{box-sizing:border-box}
html,body{overflow-x:hidden;overflow-x:clip}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--canvas);color:var(--text-primary);
  font-family:var(--body);font-weight:400;font-size:clamp(16px,1.05vw,17.5px);
  /* korean wraps by eojeol, never mid-word */
  word-break:keep-all;overflow-wrap:break-word;
  line-height:1.75;-webkit-font-smoothing:antialiased;
  /* the page eases in with CSS only, and with no fill mode on purpose:
     body's own resting opacity is 1, so a tab that never runs the animation
     paints the page immediately instead of staying blank */
  opacity:1;animation:pagein .9s var(--ease);
}
@keyframes pagein{from{opacity:0}to{opacity:1}}
h1,h2,h3,h4{margin:0;font-family:var(--display);font-weight:700;line-height:1.24;letter-spacing:-.01em}
p{margin:0}
a{color:inherit}
img,svg{max-width:100%}
::selection{background:var(--accent-muted);color:var(--text-primary)}

.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap}
.skip{position:absolute;left:-9999px;top:0;z-index:200;background:var(--accent);color:#fff;padding:12px 18px;border-radius:0 0 10px 0}
.skip:focus{left:0}
:focus-visible{outline:2px solid var(--accent-glow);outline-offset:3px;border-radius:4px}
.mono{font-family:var(--mono);font-size:12px;letter-spacing:.1em}

/* the fixed environment layer: one place, not stacked sections */
.env{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.env i{position:absolute;display:block;border-radius:50%;filter:blur(60px);opacity:.5}
.env i:nth-child(1){width:52vw;height:52vw;left:-14vw;top:6vh;background:radial-gradient(circle,rgba(191,216,210,.55),transparent 68%);animation:drift1 96s var(--ease-soft) -22s infinite alternate}
.env i:nth-child(2){width:44vw;height:44vw;right:-10vw;top:34vh;background:radial-gradient(circle,rgba(217,168,142,.28),transparent 66%);animation:drift2 118s var(--ease-soft) -47s infinite alternate}
.env i:nth-child(3){width:38vw;height:38vw;left:26vw;bottom:-12vh;background:radial-gradient(circle,rgba(95,203,180,.24),transparent 66%);animation:drift3 84s var(--ease-soft) -13s infinite alternate}
.env u{position:absolute;inset:0;display:block;opacity:.42;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='.34'/%3E%3C/svg%3E")}
@keyframes drift1{from{transform:translate3d(0,0,0) scale(1)}to{transform:translate3d(6vw,7vh,0) scale(1.16)}}
@keyframes drift2{from{transform:translate3d(0,0,0) scale(1.1)}to{transform:translate3d(-7vw,-5vh,0) scale(1)}}
@keyframes drift3{from{transform:translate3d(0,0,0) scale(1)}to{transform:translate3d(-5vw,-8vh,0) scale(1.2)}}

/* nav */
.nav{position:fixed;top:0;left:0;right:0;z-index:60;display:flex;align-items:baseline;gap:26px;
  padding:18px var(--gut);color:var(--text-on-deep);
  transition:background .6s var(--ease),color .6s var(--ease),backdrop-filter .6s var(--ease),border-color .6s var(--ease);
  border-bottom:1px solid transparent}
/* the nav carries its own scrim in dark mode, so it stays readable over any
   frame of the film and over the full-bleed image band. it lifts when the nav
   goes solid over the light canvas. */
.nav::before{content:"";position:absolute;inset:0 0 -40px 0;pointer-events:none;z-index:-1;
  background:linear-gradient(to bottom,rgba(8,14,16,.78) 0%,rgba(8,14,16,.44) 52%,rgba(8,14,16,0) 100%);
  transition:opacity .6s var(--ease)}
.nav.solid::before{opacity:0}
.nav.solid{background:rgba(234,238,237,.86);backdrop-filter:blur(14px);color:var(--text-primary);border-bottom-color:var(--line-light)}
.nav.plain{color:var(--text-primary);background:rgba(234,238,237,.88);backdrop-filter:blur(14px);border-bottom-color:var(--line-light)}
.nav.plain::before{opacity:0}
.brand{display:inline-flex;align-items:center;gap:10px;font-family:var(--display);font-weight:700;font-size:19px;letter-spacing:.02em;text-decoration:none}
.brand svg{width:24px;height:24px;flex:none}
.nav-links{margin-left:auto;display:flex;gap:22px;align-items:baseline}
.nav-links a{font-size:13.5px;text-decoration:none;opacity:.78;transition:opacity .35s var(--ease)}
.nav-links a:hover{opacity:1}
@media (max-width:900px){ .nav-links a:not(.btn-mini){display:none} }
.btn-mini{opacity:1!important;border:1px solid currentColor;border-radius:999px;padding:7px 15px;font-size:13px;
  transition:background .35s var(--ease),color .35s var(--ease),border-color .35s var(--ease)}
.btn-mini:hover{background:var(--accent);border-color:var(--accent);color:#fff}
@media (pointer:coarse){ .nav-links a{min-height:44px;display:inline-flex;align-items:center} }

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;
  font-family:var(--body);font-weight:500;font-size:15px;text-decoration:none;cursor:pointer;
  padding:14px 26px;border-radius:999px;border:1px solid transparent;text-shadow:none;
  background:var(--accent);color:#fff;
  transition:background .4s var(--ease),transform .4s var(--ease),box-shadow .4s var(--ease),border-color .4s var(--ease),color .4s var(--ease),opacity .3s var(--ease)}
.btn:hover{background:var(--accent-hover);transform:translateY(-2px);box-shadow:0 12px 30px rgba(23,94,82,.34)}
.btn.ghost{background:transparent;border-color:currentColor;color:inherit}
.btn.ghost:hover{background:rgba(255,255,255,.1);box-shadow:none}
.btn[disabled],.btn.off{opacity:.4;pointer-events:none}
@media (pointer:coarse){ .btn{min-height:44px} }

/* section furniture */
.sec{position:relative;z-index:1;padding:clamp(84px,11vw,152px) 0}
/* the nav is fixed, so anchored jumps must stop below it */
section[id],main[id],#top{scroll-margin-top:clamp(76px,9vh,104px)}
.sec.deep{background:var(--canvas-deep);color:var(--text-on-deep)}
.sec.deep h2,.sec.deep h3{color:var(--text-on-deep)}
.wrap{width:min(1180px,100% - (var(--gut)*2) - var(--rail));margin-inline:auto;margin-right:calc(var(--gut) + var(--rail))}
@media (max-width:1179px){ .wrap{margin-inline:auto} }
.wrap.mid{width:min(1180px,100% - (var(--gut)*2));margin-inline:auto}
.kicker{font-family:var(--label);font-weight:500;font-size:11.5px;letter-spacing:var(--label-track);
  color:var(--accent-text);margin-bottom:16px;display:flex;align-items:center;gap:12px}
.sec.deep .kicker{color:var(--accent-glow)}
.kicker::before{content:"";width:26px;height:1px;background:currentColor;opacity:.6;flex:none}
h2.big{font-size:clamp(27px,3.5vw,50px);line-height:1.26;max-width:21ch}
.lede{margin-top:22px;font-size:clamp(16px,1.2vw,18.5px);line-height:1.78;color:var(--text-secondary);max-width:44ch}
.sec.deep .lede{color:var(--text-on-deep-dim)}

/* entrance choreography */
.rise{opacity:0;transform:translateY(24px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.in .rise,.rise.in{opacity:1;transform:none}
.stg>*{opacity:0;transform:translateY(22px);transition:opacity .85s var(--ease),transform .85s var(--ease)}
.stg.in>*{opacity:1;transform:none}
.stg.in>*:nth-child(1){transition-delay:0ms}
.stg.in>*:nth-child(2){transition-delay:90ms}
.stg.in>*:nth-child(3){transition-delay:180ms}
.stg.in>*:nth-child(4){transition-delay:270ms}
.stg.in>*:nth-child(5){transition-delay:360ms}
.stg.in>*:nth-child(6){transition-delay:450ms}
.stg.done>*:nth-child(1),.stg.done>*:nth-child(2),.stg.done>*:nth-child(3),
.stg.done>*:nth-child(4),.stg.done>*:nth-child(5),.stg.done>*:nth-child(6){transition-delay:0s!important}

/* footer */
.foot{position:relative;z-index:1;background:var(--canvas-deep);color:var(--text-on-deep-dim);
  border-top:1px solid var(--line-deep);padding:clamp(52px,7vw,88px) 0 44px;font-size:13.6px;line-height:1.8}
.foot-top{display:flex;gap:36px;flex-wrap:wrap;align-items:flex-start;justify-content:space-between}
.foot .brand{color:var(--text-on-deep);font-size:21px}
.foot nav{display:flex;gap:22px;flex-wrap:wrap}
.foot nav a{text-decoration:none;opacity:.8;transition:opacity .35s var(--ease)}
.foot nav a:hover{opacity:1;color:var(--accent-glow)}
.foot-notes{margin-top:clamp(34px,4vw,54px);padding-top:26px;border-top:1px solid var(--line-deep);
  display:grid;gap:10px;max-width:70ch}
.foot-crisis{color:var(--text-on-deep);border-left:2px solid var(--accent-glow);padding-left:14px}
.foot-crisis a{color:var(--accent-glow);font-weight:500}
.foot-legal{margin-top:24px;font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;opacity:.55}

/* reduced motion, honored completely */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important;transition-delay:0s!important}
  body{opacity:1!important;animation:none!important}
  .rise,.stg>*{opacity:1;transform:none}
}
body.paused *,body.paused *::before,body.paused *::after{animation-play-state:paused!important}