/* ============================================================
   KOZY — Ondol Dusk v3 · "sensory" system
   The gradient is the artwork, not the wallpaper.
   Ink page · artworks in frames · Fraunces + Hanken Grotesk
   Home uses this file. Other pages still use styles.css until migrated.
   ============================================================ */
:root{
  --ink:#1E1D28; --ink-deep:#16151f; --indigo:#4A3F63; --plum:#6E4458;
  --crimson:#B03E48; --coral:#C4574E; --amber:#D98C52; --ivory:#F4F0E9;
  --ivory-70:rgba(244,240,233,.7); --ivory-45:rgba(244,240,233,.45); --ivory-18:rgba(244,240,233,.16);
  --ink-70:rgba(30,29,40,.72); --ink-45:rgba(30,29,40,.5); --ink-18:rgba(30,29,40,.22);
  --display:"Fraunces","Noto Serif KR",Georgia,serif;
  --body:"Hanken Grotesk",-apple-system,"Helvetica Neue",sans-serif;
  --kr:"Noto Serif KR","Fraunces",serif;
  /* the artwork — sampled from the Ondol Dusk master file (assets/ondol-dusk.jpg) */
  --dusk:linear-gradient(to bottom,#1f1c29 0%,#292536 12%,#362f48 22%,#4d3d59 32%,#644156 42%,#804251 52%,#a03f48 62%,#b83f45 72%,#c7584b 82%,#d4744f 92%,#dd8656 100%);
  --warm:0;        /* 0..1 scroll progress (JS) */
  --slow:1.8s;     /* content pacing */
  --ui:.25s;       /* functional UI pacing */
  --gutter:clamp(1.25rem,4vw,3.5rem);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--body);font-weight:300;font-size:17px;line-height:1.6;color:var(--ivory);background:var(--ink);overflow-x:hidden;-webkit-font-smoothing:antialiased}
img,svg{display:block;max-width:100%}
a{color:inherit}
::selection{background:var(--coral);color:var(--ivory)}

/* ---------- type ---------- */
h1,h2,h3{font-family:var(--display);font-weight:300;letter-spacing:-.02em;line-height:.96;font-optical-sizing:auto}
h1{font-size:clamp(3.4rem,11.5vw,12.5rem);font-variation-settings:"opsz" 144,"SOFT" 30,"WONK" 0}
h2{font-size:clamp(2.6rem,7vw,7.2rem);font-variation-settings:"opsz" 120,"SOFT" 30}
h3{font-size:clamp(1.9rem,3vw,2.6rem);letter-spacing:-.01em;font-variation-settings:"opsz" 72}
em{font-style:italic;font-weight:300}
.lede{font-family:var(--display);font-weight:300;font-size:clamp(1.25rem,1.9vw,1.6rem);line-height:1.4;max-width:34ch;font-variation-settings:"opsz" 40}
.copy{color:var(--ivory-70);max-width:52ch}
.copy p+p{margin-top:1rem}
.cap{font-size:12.5px;letter-spacing:.06em;color:var(--ivory-45)}
.wrap{max-width:1280px;margin:0 auto;padding:0 var(--gutter)}
.link{font-size:12.5px;letter-spacing:.08em;text-decoration:none;color:var(--ivory);border-bottom:1px solid var(--ivory-45);padding-bottom:.25em;transition:border-color var(--ui)}
.link:hover{border-color:var(--ivory)}

/* ---------- header ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:100;display:flex;align-items:center;justify-content:space-between;padding:1.2rem var(--gutter);transition:background .4s ease,border-color .4s ease;border-bottom:1px solid transparent}
.site-header.scrolled{background:rgba(22,21,31,.78);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom-color:var(--ivory-18)}
.logo-img{height:20px;width:auto}
.nav{display:flex;gap:2.2rem;align-items:center}
.nav a{font-size:12px;font-weight:500;letter-spacing:.1em;text-decoration:none;color:var(--ivory-70);transition:color var(--ui)}
.nav a:hover,.nav a.active{color:var(--ivory)}
.nav .nav-cta{color:var(--ink);background:var(--ivory);padding:.6em 1.3em;border-radius:999px}
.nav .nav-cta:hover{background:#fffdf6;color:var(--ink)}
.nav .nav-cta-ghost{background:transparent;border:1px solid var(--ivory-45);color:var(--ivory-70)}
.nav .nav-cta-ghost:hover{border-color:var(--ivory);color:var(--ivory);background:transparent}
.nav-toggle{display:none}
@media (max-width:900px){
  .nav{display:none}
  .nav.open{display:flex;position:fixed;inset:0;background:rgba(22,21,31,.97);flex-direction:column;justify-content:center;align-items:center;gap:2rem;font-size:1rem}
  .nav-toggle{display:block;z-index:101;background:none;border:0;color:var(--ivory);font-size:1.5rem;cursor:pointer}
}

/* ---------- buttons ---------- */
.btn{display:inline-block;background:transparent;font-family:var(--body);font-weight:500;font-size:12.5px;letter-spacing:.08em;text-decoration:none;text-align:center;padding:.95em 1.7em;border:1px solid var(--ivory-70);border-radius:999px;color:var(--ivory);transition:background var(--ui),color var(--ui),border-color var(--ui);cursor:pointer}
.btn:hover{background:var(--ivory);color:var(--ink);border-color:var(--ivory)}
.btn.solid{background:var(--ivory);color:var(--ink);border-color:var(--ivory)}
.btn.solid:hover{background:#fffdf6}

/* ---------- the artwork ---------- */
.art{position:relative;overflow:hidden;isolation:isolate;background-image:var(--dusk);background-repeat:no-repeat;
  background-size:100% var(--zoom,300%);
  background-position:0 calc(var(--base,0) * 100% + var(--warm) * var(--drift,30%));
  transition:background-position var(--slow) cubic-bezier(.2,.6,.2,1)}
.art::before{content:"";position:absolute;inset:0;z-index:0;pointer-events:none;background-image:var(--dusk);background-repeat:no-repeat;background-size:100% var(--zoom,300%);
  background-position:0 calc(var(--base,0) * 100% + var(--warm) * var(--drift,30%) + var(--breath,6%));
  opacity:0;animation:breathe 8s ease-in-out infinite;transition:background-position var(--slow) cubic-bezier(.2,.6,.2,1)}
.art::after{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;opacity:.26;mix-blend-mode:soft-light;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 .9 0'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size:300px 300px}
@keyframes breathe{0%,100%{opacity:0}50%{opacity:.75}}
.art>*{position:relative;z-index:2}

/* ---------- hero ---------- */
.hero{min-height:100svh;display:flex;flex-direction:column;justify-content:flex-end;--base:0;--zoom:100%;--drift:0%;--breath:2%;
  padding:7rem var(--gutter) 2.2rem;background-image:url("assets/ondol-dusk.jpg");background-size:cover;background-position:center}
.hero::after{opacity:.12}
@media (max-width:700px){.hero{background-image:url("assets/ondol-dusk-mobile.jpg")}}
.hero .trace{position:absolute;inset:0;z-index:1;pointer-events:none}
.hero h1{max-width:12ch;margin-bottom:auto;padding-top:11vh}
.hero.has-lede h1{margin-bottom:0;padding-top:7vh}
.hero.has-lede .zz{top:clamp(4.6rem,8vh,6rem);width:clamp(110px,11vw,150px)}
.hero.has-lede .lede{margin:1.2rem 0 auto;max-width:58ch;color:var(--ivory-70);font-size:clamp(1.05rem,1.35vw,1.25rem)}
.hero.has-lede .line{margin-top:2rem}
@media (max-width:700px){.hero.has-lede h1{padding-top:8vh}}
.hero h1 em{font-variation-settings:"opsz" 144,"SOFT" 60}
.hero .line{display:flex;flex-wrap:wrap;align-items:center;gap:1.2rem 2.4rem;border-top:1px solid var(--ink-18);padding-top:1.4rem;margin-top:3rem}
.hero .line .cap{color:var(--ink-70)}
.hero .btn{border-color:var(--ink-45);color:var(--ink)}
.hero .btn:hover{background:var(--ink);color:var(--ivory);border-color:var(--ink)}
.hero .btn.solid{background:var(--ink);color:var(--ivory);border-color:var(--ink)}
.hero .btn.solid:hover{background:var(--ink-deep)}
.hero .down{margin-left:auto;font-size:12.5px;letter-spacing:.08em;color:var(--ink-70);text-decoration:none}
/* the two bubbles */
.bub{position:absolute;z-index:3;opacity:0;animation:bub-in 2.4s cubic-bezier(.2,.6,.2,1) forwards}
.bub text{font-family:var(--display);font-style:italic;font-weight:300;fill:var(--ivory);letter-spacing:.01em;font-variation-settings:"opsz" 60,"SOFT" 100}
.bub path{fill:none;stroke:var(--ivory);stroke-width:1.3;stroke-linecap:round;stroke-linejoin:round}
.zz{top:clamp(5.5rem,12vh,8rem);left:var(--gutter);width:clamp(120px,13vw,170px);transform:rotate(-5deg);animation-delay:.8s}
.zz text{font-size:30px}
.sigh{right:var(--gutter);bottom:clamp(7.5rem,17vh,10rem);width:clamp(200px,24vw,320px);transform:rotate(3deg);transform-origin:right bottom;animation-delay:1.6s}
.sigh text{font-size:34px;fill:var(--ink)}
.sigh path{stroke:var(--ink)}
@keyframes bub-in{to{opacity:1}}
.ah{position:absolute;z-index:4;pointer-events:none;font-family:var(--display);font-style:italic;font-weight:300;font-size:clamp(1.1rem,1.6vw,1.4rem);color:var(--ivory);transform:translate(-50%,-50%);animation:ah-drift 2.8s ease-out forwards;font-variation-settings:"opsz" 40,"SOFT" 100}
@keyframes ah-drift{0%{opacity:0;transform:translate(-50%,-40%)}18%{opacity:.9}100%{opacity:0;transform:translate(-50%,-140%)}}

/* ---------- sections ---------- */
section.plain{padding:clamp(6rem,14vh,11rem) 0}
.feels h2{margin-bottom:clamp(3rem,7vh,5rem)}
.scenes{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(2rem,4vw,4rem)}
.scene svg{width:100%;height:auto;margin-bottom:1.6rem}
.scene p{font-family:var(--display);font-weight:300;font-size:clamp(1.15rem,1.6vw,1.45rem);line-height:1.38;max-width:26ch;font-variation-settings:"opsz" 40}
.scene .cap{display:block;margin-top:.9rem}
.line-art{fill:none;stroke:var(--ivory);stroke-width:1.1;stroke-linecap:round;stroke-linejoin:round;opacity:.9}
.line-art .soft{opacity:.45}
.line-art .heat{stroke:var(--amber);opacity:.9}
.feels-close{margin-top:clamp(4rem,9vh,7rem);font-family:var(--display);font-weight:300;font-size:clamp(1.5rem,2.6vw,2.2rem);line-height:1.35;max-width:30ch;font-variation-settings:"opsz" 60}
.feels-close em{color:var(--amber)}

/* collection */
.collection .lede{margin:1.4rem 0 clamp(3rem,7vh,5rem)}
.cards{display:grid;grid-template-columns:1fr 1fr;gap:clamp(1.25rem,3vw,3rem)}
.card{display:block;text-decoration:none;color:inherit}
.card .photo{position:relative;aspect-ratio:4/5;overflow:hidden;background:var(--ink-deep)}
.card .photo img{width:100%;height:100%;object-fit:cover;transition:opacity var(--slow) ease}
.card .photo::after{content:"";position:absolute;left:0;right:0;bottom:0;height:34%;background:linear-gradient(to top,rgba(22,21,31,.55),transparent);pointer-events:none}
.card .photo .tag{z-index:1}
.card .photo .tag{position:absolute;left:1.3rem;bottom:1.2rem;font-family:var(--display);font-style:italic;font-size:1rem;color:var(--ivory);font-variation-settings:"opsz" 30;text-shadow:0 1px 12px rgba(22,21,31,.5)}
.card .meta{display:flex;justify-content:space-between;align-items:baseline;padding:1.3rem .1rem 0;gap:1rem}
.card .desc{margin:.7rem .1rem 0;color:var(--ivory-70);max-width:44ch}
.card .go{display:inline-block;margin:1.1rem .1rem 0}

/* ondol */
.wm{position:relative}
.wm .glyph{position:absolute;right:-.05em;top:50%;transform:translateY(-58%);font-family:var(--kr);font-weight:200;font-size:clamp(12rem,30vw,28rem);line-height:.9;letter-spacing:-.04em;color:var(--ivory);opacity:.08;pointer-events:none;z-index:0}
.wm>*:not(.glyph){position:relative;z-index:1}

/* proof */
.proof{padding:clamp(5rem,12vh,9rem) 0;border-top:1px solid var(--ivory-18);border-bottom:1px solid var(--ivory-18)}
.proof blockquote{font-family:var(--display);font-weight:300;font-size:clamp(1.5rem,2.8vw,2.4rem);line-height:1.35;max-width:26ch;font-variation-settings:"opsz" 60}
.proof blockquote::before{content:"“";color:var(--amber)}
.proof blockquote::after{content:"”";color:var(--amber)}
.proof cite{display:block;font-style:normal;margin-top:1.2rem}
.proof .facts{margin-top:clamp(2.5rem,5vh,4rem);display:flex;flex-wrap:wrap;gap:.6rem 2rem;font-size:13px;letter-spacing:.06em;color:var(--ivory-70)}
.proof .facts a{color:var(--ivory);text-decoration:none;border-bottom:1px solid var(--ivory-45)}

/* finale — the bottom of the painting */
.finale{--base:1;--zoom:300%;--drift:0%;--breath:0%;min-height:88svh;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;color:var(--ink);padding:6rem 1.5rem 5rem}
.finale h2{color:var(--ink);max-width:10ch}
.finale .lede{color:var(--ink-70);margin:1.6rem auto 2.4rem}
.finale .row{display:flex;flex-wrap:wrap;gap:.8rem;justify-content:center}
.finale .btn{border-color:var(--ink-45);color:var(--ink)}
.finale .btn:hover{background:var(--ink);color:var(--ivory);border-color:var(--ink)}
.finale .btn.solid{border-color:var(--ink);background:var(--ink);color:var(--ivory)}
.finale .btn.solid:hover{background:var(--ink-deep)}
.finale .cap{color:var(--ink-45);margin-top:1.4rem}
.finale .partner{margin-top:2.2rem;font-size:13.5px;color:var(--ink-70)}
.finale .partner a{color:var(--ink);text-decoration:none;border-bottom:1px solid var(--ink-45)}
.letter-form{margin-top:clamp(3rem,7vh,5rem);width:100%;max-width:520px}
.letter-form label{display:block;font-size:13.5px;color:var(--ink-70);margin-bottom:.8rem}
.letter-row{display:flex;gap:.6rem}
.letter-row input{flex:1;min-width:0;font:inherit;font-size:14px;padding:.8em 1.1em;border:1px solid var(--ink-45);border-radius:999px;background:rgba(244,240,233,.35);color:var(--ink);outline:0}
.letter-row input::placeholder{color:var(--ink-45)}
.letter-row input:focus{border-color:var(--ink)}
.letter-form .thanks{color:var(--ink-70);font-size:14px}

/* footer (on ink) */
.site-footer{padding:3.5rem var(--gutter) 2.2rem;font-size:13px;color:var(--ivory-45)}
.foot-grid{display:flex;flex-wrap:wrap;gap:2rem;justify-content:space-between;align-items:flex-end;max-width:1280px;margin:0 auto}
.logo-lockup{height:52px;width:auto}
.site-footer p{margin-top:.7rem}
.site-footer a{color:var(--ivory-70);text-decoration:none}
.site-footer nav{display:flex;gap:1.5rem;flex-wrap:wrap}
.site-footer nav a{font-size:12px;letter-spacing:.1em;font-weight:500}
.site-footer nav a:hover,.site-footer .contact a:hover{color:var(--ivory)}
.legal{width:100%;display:flex;justify-content:space-between;flex-wrap:wrap;gap:.6rem;border-top:1px solid var(--ivory-18);padding-top:1.4rem;margin-top:1rem}

/* reveal: opacity only, slow */
.rv{opacity:0;transition:opacity var(--slow) ease}
.rv.in{opacity:1}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .scenes{grid-template-columns:1fr;gap:3rem}
  .cards{grid-template-columns:1fr}
  .hero{padding-top:9rem}
  .sigh{width:min(56vw,230px);top:auto;bottom:13.5rem;right:1.25rem}
  .sigh text{font-size:32px}
  .zz{width:120px}
  .letter-row{flex-direction:column}
}
/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .art,.art::before{transition:none}
  .art::before{animation:none;opacity:.35}
  .bub{animation:none;opacity:1}
  .rv{opacity:1;transition:none}
  .ah{display:none}
}

/* ---------- ondol etching · second trace field ---------- */
.stone{--base:.12;--zoom:900%;--drift:20%;margin-top:clamp(3rem,7vh,5rem);padding:clamp(2rem,6vw,5rem);min-height:52vh;display:flex;flex-direction:column;justify-content:space-between;gap:2rem}
.stone .trace{position:absolute;inset:0;z-index:1;pointer-events:none}
.stone .ondol-svg{width:min(880px,100%);margin:0 auto;z-index:2}
.stone .ondol-svg .heatflow{animation:flow 6s linear infinite}
@keyframes flow{to{stroke-dashoffset:-96}}
.stone .lede{color:var(--ivory);z-index:2}
.stone .cap{z-index:2;color:var(--ivory-70)}
@media (prefers-reduced-motion:reduce){.stone .ondol-svg .heatflow{animation:none}}

/* ---------- the dictionary entry: ondol topper ---------- */
.defn{border-top:1px solid var(--ivory-18);border-bottom:1px solid var(--ivory-18);padding:1.6rem 0 1.5rem;margin:2.4rem 0;max-width:62ch}
.defn .head{display:flex;flex-wrap:wrap;align-items:baseline;gap:.4rem 1.2rem}
.defn .word{font-family:var(--display);font-weight:300;font-size:clamp(1.7rem,2.6vw,2.3rem);letter-spacing:-.01em;font-variation-settings:"opsz" 72,"SOFT" 60}
.defn .pos{font-size:12.5px;letter-spacing:.08em;color:var(--ivory-70)}
.defn .pos em{font-style:italic;letter-spacing:0}
.defn p{margin:.9rem 0 .8rem;font-size:clamp(1rem,1.2vw,1.1rem);line-height:1.7;color:var(--ivory-70)}
.defn .cap{display:block;color:var(--amber)!important}
.sand .defn .cap{color:var(--coral)!important}
.defn-wrap{padding-top:0!important;padding-bottom:0!important}
.sticky .l .st-cat{font-style:italic;color:var(--ivory-70);font-family:var(--display);white-space:nowrap}
@media (max-width:760px){.sticky .l .st-cat{display:none}}