/* =========================================================
   Portfolio template — dark editorial / chaptered layout
   Structure mirrors the reference: preloader -> curtain
   transitions -> single scroll page with numbered chapters.
   ========================================================= */

:root{
  /* ---- 明亮主题：改这里即可整站换肤 ---- */
  --bg:#f5f3ee;            /* 纸白背景 */
  --bg-rgb:245,243,238;    /* 与 --bg 同值的 RGB，供半透明叠加使用 */
  --bg-soft:#e8e4db;       /* 次级底色 / 占位块 */
  --fg:#17171b;            /* 墨色主文字 */
  --muted:#6b6b64;         /* 次级文字 */
  --line:rgba(23,23,27,.14);
  --line-strong:rgba(23,23,27,.32);
  --accent:#bf3d18;        /* 强调色：编号 / 线条 / 悬停（浅底上达 AA） */
  --ring:rgba(23,23,27,.5);/* 光标圆环 */
  --accent-fill:#ff5e3a;   /* 强调色（亮）：大色块 / 幕布 */
  --accent-wipe:linear-gradient(115deg,#df8868 0%,#d87c5c 25%,#d06b4b 55%,#c26347 80%,#b95b42 100%); /* 转场幕布：低饱和陶土，斜向连续 */
  --paper-warm:#efe7d8;
  --paper-cool:#dfe7ec;
  --font-sans:"Helvetica Neue",Helvetica,Arial,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
  --gutter:clamp(16px,4vw,56px);
  --ease:cubic-bezier(.22,1,.36,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
html,body{margin:0;padding:0}
body{
  background:var(--bg);
  color:var(--fg);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
  overscroll-behavior-y:none;
}
body.is-locked{overflow:hidden}
h1,h2,h3,h4,p,dl,dd,figure{margin:0}
ul{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
::selection{background:var(--fg);color:var(--bg)}

.mono{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  text-transform:uppercase;
}

/* ---------- scroll shell (lerp-smoothed) ---------- */
.scroll-wrap{position:fixed;inset:0;overflow:hidden}
.scroll-content{position:relative;will-change:transform}
html.no-js .scroll-wrap{position:static;overflow:visible}
html.no-js .scroll-content{transform:none!important}

/* ---------- reveal primitives ---------- */
html.js [data-reveal]{
  opacity:0;
  transform:translate3d(0,28px,0);
  transition:opacity .82s var(--ease) var(--d,0s),transform .92s var(--ease) var(--d,0s);
}
html.js [data-reveal].is-in{opacity:1;transform:none}

html.js [data-mask] .line{display:block;overflow:hidden;padding-bottom:.04em}
html.js [data-mask] .line>span{
  display:block;
  transform:translate3d(0,110%,0);
  transition:transform 1.05s var(--ease);
  transition-delay:calc(var(--i,0) * 90ms);
}
html.js [data-mask].is-in .line>span{transform:none}

.parallax{will-change:transform}

/* ---------- text scale ---------- */
.chapter__title,.hero__title{
  font-weight:500;
  line-height:.92;
  letter-spacing:-.035em;
  text-transform:uppercase;
}

/* =========================================================
   PRELOADER
   ========================================================= */
.preloader{
  position:fixed;inset:0;z-index:200;
  background:var(--bg);
  display:flex;align-items:flex-end;
  padding:var(--gutter);
  transition:opacity .6s ease,visibility .6s ease;
}
.preloader.is-done{opacity:0;visibility:hidden}
.preloader__lines{position:absolute;inset:0;display:flex}
.preloader__lines i{
  flex:1;background:var(--bg-soft);
  transform:scaleY(0);transform-origin:bottom;
  animation:preLine 1.5s var(--ease) forwards;
  border-right:1px solid rgba(0,0,0,.035);
}
.preloader__lines i:nth-child(2){animation-delay:.08s}
.preloader__lines i:nth-child(3){animation-delay:.16s}
.preloader__lines i:nth-child(4){animation-delay:.24s}
@keyframes preLine{to{transform:scaleY(1)}}

.preloader__inner{position:relative;width:100%}
.preloader__top,.preloader__bottom{
  display:flex;justify-content:space-between;align-items:baseline;
  color:var(--muted);
}
.preloader__words{height:1.05em;overflow:hidden;position:relative;margin:clamp(24px,6vh,60px) 0}
.preloader__word{
  position:absolute;inset:0;
  font-size:clamp(38px,9vw,120px);
  font-weight:500;line-height:1;letter-spacing:-.03em;text-transform:uppercase;
  opacity:0;transform:translate3d(0,100%,0);
  transition:opacity .5s var(--ease),transform .75s var(--ease);
}
.preloader__word.is-active{opacity:1;transform:none}
.preloader__bar{height:1px;background:var(--line);position:relative;overflow:hidden}
.preloader__bar i{position:absolute;inset:0;background:var(--accent);transform-origin:left;transform:scaleX(0)}
.preloader__bottom{margin-top:16px}

/* =========================================================
   CURTAIN TRANSITION
   ========================================================= */
.curtain{position:fixed;inset:0;z-index:180;pointer-events:none;display:flex}
.curtain i{
  flex:1;background:var(--accent-wipe);
  /* one gradient stretched across all five panels, so there is no brightness
     step (and therefore no visible seam) where two panels meet */
  background-size:500% 100%;background-repeat:no-repeat;
  transform:scaleY(0);transform-origin:bottom;
  transition:transform .55s var(--ease);
}
.curtain.is-on i{transform:scaleY(1);transform-origin:top}
.curtain.is-on{pointer-events:all}
.curtain i + i{margin-left:-1px}   /* overlap: kills any sub-pixel gap */
.curtain i:nth-child(1){background-position:0% 0}
.curtain i:nth-child(2){background-position:25% 0;transition-delay:.04s}
.curtain i:nth-child(3){background-position:50% 0;transition-delay:.08s}
.curtain i:nth-child(4){background-position:75% 0;transition-delay:.12s}
.curtain i:nth-child(5){background-position:100% 0;transition-delay:.16s}

/* =========================================================
   CURSOR
   ========================================================= */
.cursor,.cursor-dot{position:fixed;top:0;left:0;z-index:170;pointer-events:none;border-radius:999px;opacity:0}
.cursor.is-ready,.cursor-dot.is-ready{opacity:1}
.cursor{
  width:44px;height:44px;margin:-22px 0 0 -22px;
  border:1px solid var(--ring);
  display:flex;align-items:center;justify-content:center;
  transition:width .35s var(--ease),height .35s var(--ease),margin .35s var(--ease),
             background-color .35s var(--ease),border-color .35s var(--ease),opacity .3s ease;
}
.cursor-dot{width:4px;height:4px;margin:-2px 0 0 -2px;background:var(--fg)}
.cursor__label,.cursor span{
  font-family:var(--font-mono);font-size:9px;letter-spacing:.12em;text-transform:uppercase;
  opacity:0;transition:opacity .25s ease;white-space:nowrap;
}
.cursor.is-view{width:96px;height:96px;margin:-48px 0 0 -48px;background:var(--fg);border-color:transparent}
.cursor.is-view span{opacity:1;color:var(--bg)}
.cursor.is-link{width:64px;height:64px;margin:-32px 0 0 -32px;background:rgba(200,65,28,.16);border-color:var(--accent)}
/* drag / click share the same ring, only the label differs */
.cursor.is-drag,.cursor.is-click{width:76px;height:76px;margin:-38px 0 0 -38px;border-color:var(--accent)}
.cursor.is-drag span,.cursor.is-click span{opacity:1;color:var(--accent)}
@media (hover:none),(pointer:coarse){.cursor,.cursor-dot{display:none}}

/* =========================================================
   HEADER
   ========================================================= */
.header{
  position:fixed;top:0;left:0;right:0;z-index:150;
  display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:clamp(12px,3vw,48px);
  padding:20px var(--gutter);
  border-bottom:1px solid var(--line);
  background:linear-gradient(to bottom,rgba(var(--bg-rgb),.94),rgba(var(--bg-rgb),.72) 70%,rgba(var(--bg-rgb),0));
}
.header__logo{display:flex;align-items:center;gap:10px;font-size:13px;letter-spacing:.14em;font-weight:500}
.header__mark{
  width:9px;height:9px;background:var(--accent);border-radius:50%;
  animation:pulse 2.4s ease-in-out infinite;
}
@keyframes pulse{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(.6);opacity:.5}}

.header__nav{display:flex;gap:clamp(10px,2.2vw,34px);justify-content:center}
.header__nav a{
  display:flex;align-items:baseline;gap:7px;
  font-size:12px;letter-spacing:.05em;color:var(--muted);
  padding:4px 0;position:relative;
  transition:color .35s var(--ease);
}
.header__nav a em{font-family:var(--font-mono);font-size:9px;font-style:normal;opacity:.6}
.header__nav a span{display:inline-block;transition:transform .45s var(--ease),letter-spacing .45s var(--ease)}
.header__nav a:hover span,.header__nav a.is-active span{transform:translateY(-2px);letter-spacing:.09em}
.header__nav a::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:100%;
  background:var(--fg);transform:scaleX(0);transform-origin:right;
  transition:transform .45s var(--ease);
}
.header__nav a:hover,.header__nav a.is-active{color:var(--fg)}
.header__nav a.is-active em{color:var(--accent);opacity:1}
.header__nav a:hover::after,.header__nav a.is-active::after{transform:scaleX(1);transform-origin:left}

.header__meta{display:flex;align-items:center;gap:18px;color:var(--muted)}
.header__clock b{color:var(--fg);font-weight:400}
.header__menu{display:none}

.scroll-progress{position:absolute;left:0;right:0;bottom:-1px;height:1px;background:transparent}
.scroll-progress i{display:block;height:100%;background:var(--accent);transform-origin:left;transform:scaleX(0)}

/* =========================================================
   MOBILE NAV
   ========================================================= */
.mobile-nav{
  position:fixed;inset:0;z-index:140;background:var(--bg);
  padding:96px var(--gutter) var(--gutter);
  display:flex;flex-direction:column;justify-content:center;gap:2px;
}
.mobile-nav[hidden]{display:none}
.mobile-nav a{
  display:flex;justify-content:space-between;align-items:center;
  padding:18px 0;border-bottom:1px solid var(--line);
  font-size:clamp(24px,7vw,40px);letter-spacing:-.02em;text-transform:uppercase;
}

/* =========================================================
   CHAPTER SHELL
   ========================================================= */
/* one module = one screen: fixed viewport height, flexible interior */
.chapter{
  position:relative;
  height:100vh;
  height:100svh;
  display:flex;flex-direction:column;
  padding:clamp(78px,11vh,116px) var(--gutter) clamp(20px,4vh,44px);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.chapter__index{
  flex:none;
  display:flex;justify-content:space-between;align-items:baseline;
  color:var(--muted);
  padding-bottom:10px;margin-bottom:clamp(14px,3.2vh,32px);
  border-bottom:1px solid var(--line);
}
.chapter__index span:first-child{color:var(--accent)}
.chapter__head{flex:none;margin-bottom:clamp(16px,3.4vh,38px)}
.chapter__title{font-size:clamp(30px,min(8.6vw,10.4vh),130px)}
.chapter__note{color:var(--muted);margin-top:12px}

/* =========================================================
   01 HOME
   ========================================================= */
.chapter--home{justify-content:space-between;padding-top:clamp(66px,9vh,104px)}
.hero{flex:none}
.hero__title{font-size:clamp(34px,min(12.4vw,14.6vh),210px)}
.hero__meta{
  display:flex;flex-wrap:wrap;gap:clamp(12px,3vw,52px);
  margin-top:clamp(10px,2vh,22px);color:var(--muted);
}


.hero__stage{
  position:relative;flex:1 1 auto;min-height:0;
  /* matches the ticker margin below, so the canvas sits with equal breathing
     room above (meta line) and below (ticker) - the block takes the difference */
  margin-top:clamp(8px,1.5vh,20px);
  display:grid;grid-template-columns:1fr auto;gap:20px;align-items:stretch;
}
.block{
  position:relative;min-height:0;height:100%;
  display:flex;flex-direction:column;justify-content:space-between;
  padding:20px;color:var(--fg);overflow:hidden;
  -webkit-user-select:none;user-select:none;
}
.block--warm{background:var(--paper-warm)}

/* the orb is a real element now (it used to be a ::after) so it can split */
.block__orb{
  /* one third of the board width, anchored so it bulges in from the bottom-right */
  position:absolute;right:-6%;bottom:-30%;width:33.333%;aspect-ratio:1;
  background:var(--accent-fill);border-radius:50%;opacity:.85;
  will-change:transform;touch-action:none;
  transform:translate3d(var(--ox,0px),var(--oy,0px),0);
  transition:transform .62s cubic-bezier(.22,.9,.28,1.18),opacity .3s var(--ease);
}
.block.is-dragging .block__orb{transition:none}
.block.is-splitting .block__orb{
  transform:translate3d(var(--ox,0px),var(--oy,0px),0) scale(.1);
  opacity:0;
  transition:transform .16s cubic-bezier(.4,0,.6,1),opacity .16s linear;
}

/* shards thrown out when the orb splits */
/* shards are positioned and rotated every frame by the particle loop */
.orb-shard{
  position:absolute;left:0;top:0;border-radius:50%;
  background:var(--accent-fill);pointer-events:none;
  will-change:transform,opacity;
}
/* site-wide shard layer: fixed over the viewport, never catches the pointer */
.orb-storm{
  position:fixed;inset:0;z-index:155;pointer-events:none;overflow:hidden;
}
.block__hint{position:relative;z-index:1;align-self:flex-end;margin-top:auto}
.block__hint{align-self:flex-end}
.hero__runtime{color:var(--muted);text-align:right;display:flex;flex-direction:column;gap:6px}
.hero__runtime b{color:var(--fg);font-weight:400;font-size:20px}

.ticker{flex:none;overflow:hidden;border-top:1px solid var(--line);margin-top:clamp(8px,1.5vh,20px);padding-top:8px}
.ticker__track{display:flex;gap:22px;white-space:nowrap;width:max-content;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;color:var(--muted);
  animation:marquee 26s linear infinite}
@keyframes marquee{to{transform:translateX(-50%)}}

/* =========================================================
   02 PROJECT
   ========================================================= */
.rows{flex:1 1 auto;min-height:0;display:flex;flex-direction:column;border-top:1px solid var(--line)}
.row{
  position:relative;display:grid;flex:1 1 0;min-height:0;
  grid-template-columns:64px 1fr 160px 72px 24px;
  align-items:center;gap:16px;
  padding:0;
  border-bottom:1px solid var(--line);
  transition:padding-left .6s var(--ease),color .4s var(--ease);
}
.row::before{
  content:"";position:absolute;left:0;bottom:-1px;height:1px;width:100%;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .7s var(--ease);
}
.row:hover{padding-left:18px}
.row:hover::before{transform:scaleX(1)}
.row__num,.row__cat,.row__year{color:var(--muted);transition:color .4s var(--ease)}
.row__title{font-size:clamp(22px,4.6vw,54px);letter-spacing:-.025em;line-height:1.05;transition:transform .5s var(--ease)}
.row:hover .row__title{transform:translateX(7px)}
.row__arrow{color:var(--muted);transition:transform .5s var(--ease),color .4s var(--ease)}
.row:hover .row__num,.row:hover .row__cat,.row:hover .row__year,.row:hover .row__arrow{color:var(--accent)}
.row:hover .row__arrow{transform:translate(4px,-4px)}
.row.is-dim{opacity:.32}

.hover-preview{
  position:fixed;top:0;left:0;z-index:120;pointer-events:none;
  width:clamp(180px,20vw,300px);aspect-ratio:4/3;
  opacity:0;transform:translate(-50%,-50%) scale(.86);
  transition:opacity .4s var(--ease),transform .5s var(--ease);
}
.hover-preview.is-on{opacity:1;transform:translate(-50%,-50%) scale(1)}
.hover-preview__box{
  width:100%;height:100%;background:var(--paper-cool);
  display:flex;align-items:flex-end;padding:12px;color:var(--fg);
  transition:background-color .35s ease;
}
@media (hover:none),(pointer:coarse){.hover-preview{display:none}}

/* =========================================================
   03 IDEA PRESENTATION
   ========================================================= */
/* lead — mirrors the reference sheet: big title left, note right */
/* lead — mirrors the reference sheet: big title left, label right */
/* lead — big title on its own line, label beneath it */
.idea-lead{
  flex:none;
  display:flex;flex-direction:column;
  gap:clamp(8px,1.5vh,18px);
  margin-bottom:clamp(14px,2.8vh,30px);
}
.idea-lead__side{display:flex;flex-direction:column;gap:10px}
.idea-lead__side .mono{color:var(--muted)}
.chapter--idea .chapter__title{font-size:clamp(24px,min(6vw,6.2vh),76px)}

/* six rectangular panels (default 3 x 2) */
.ideas{
  list-style:none;margin:0;padding:0;
  flex:1 1 auto;min-height:0;
  display:grid;
  grid-template-columns:repeat(var(--idea-cols,3),minmax(0,1fr));
  grid-auto-rows:minmax(0,1fr);
  gap:clamp(10px,1.4vw,20px);
}
.idea{
  position:relative;
  display:flex;flex-direction:column;min-height:0;
  border:1px solid var(--line);
  background:rgba(255,255,255,.14);
  padding:clamp(10px,1.1vw,16px);
  overflow:hidden;
  transition:border-color .5s var(--ease),transform .7s var(--ease),background .5s var(--ease);
}
.idea:hover{border-color:var(--line-strong);background:rgba(255,255,255,.32);transform:translateY(-3px)}
.idea__head{
  position:relative;z-index:2;
  flex:none;display:flex;align-items:baseline;min-width:0;
  gap:clamp(8px,1vw,14px);
  margin-bottom:clamp(6px,1vh,11px);
}
.idea__head::after{
  content:"↗";margin-left:auto;color:var(--muted);
  font-family:var(--font-mono);font-size:11px;
  opacity:.42;transition:color .35s var(--ease),transform .5s var(--ease),opacity .35s var(--ease);
}
.idea:hover .idea__head::after{color:var(--accent);opacity:1;transform:translate(2px,-2px)}
.idea__num{color:var(--muted);transition:color .4s var(--ease)}
.idea:hover .idea__num{color:var(--accent)}
.idea__title{
  min-width:0;
  font-size:clamp(15px,min(1.9vw,2.1vh),24px);font-weight:500;
  letter-spacing:-.02em;line-height:1.15;
}
.idea__box{
  position:relative;
  flex:1 1 auto;min-height:0;
  background:var(--bg-soft);
  display:block;
  color:var(--fg);overflow:hidden;
}
.idea__box::after{
  content:"";position:absolute;inset:0;z-index:5;pointer-events:none;
  box-shadow:inset 0 0 0 0 var(--accent);
  transition:box-shadow .5s var(--ease);
}
.idea:hover .idea__box::after{box-shadow:inset 0 0 0 2px var(--accent)}

/* six paper colours + six different visual systems */
.idea__box--a{background:#e7e0d6}
.idea__box--b{background:#dce5e8}
.idea__box--c{background:#e8dad4}
.idea__box--d{background:#e1dce9}
.idea__box--e{background:#e9e2c8}
.idea__box--f{background:#d8e3dc}

.idea__visual{
  position:absolute;inset:0;z-index:1;overflow:hidden;
  color:rgba(23,23,27,.72);
}
.idea__visual::before{
  content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background-image:
    linear-gradient(rgba(23,23,27,.075) 1px,transparent 1px),
    linear-gradient(90deg,rgba(23,23,27,.075) 1px,transparent 1px);
  background-size:25% 25%;
  opacity:.5;
  mask-image:linear-gradient(125deg,#000 0%,transparent 72%);
  -webkit-mask-image:linear-gradient(125deg,#000 0%,transparent 72%);
}
.idea__visual::after{
  content:"";position:absolute;inset:7px;z-index:3;pointer-events:none;
  border:1px solid rgba(23,23,27,.14);
}
.visual__meta,.visual__corner{
  position:absolute;z-index:4;white-space:nowrap;
  color:rgba(23,23,27,.62);font-size:8px;line-height:1;
}
.visual__meta{left:14px;top:13px}
.visual__corner{right:14px;bottom:13px}

/* 01 — working title as a small editorial poster */
.visual--01::after{
  content:"";position:absolute;z-index:0;
  width:min(48%,170px);aspect-ratio:1;right:-9%;top:8%;border-radius:50%;
  border:1px solid rgba(23,23,27,.18);
  box-shadow:inset 0 0 0 13px rgba(255,255,255,.17),0 0 0 8px rgba(23,23,27,.04);
}
.visual-title{
  position:absolute;z-index:2;left:11%;right:10%;top:29%;bottom:16%;
  display:flex;flex-direction:column;justify-content:center;align-items:flex-start;
  transition:transform .7s var(--ease);
}
.idea:hover .visual-title{transform:translateX(4px)}
.visual-title__kicker{font-size:7px;color:rgba(23,23,27,.55);margin-bottom:5px}
.visual-title strong{
  display:block;font-size:clamp(26px,3.45vw,48px);font-weight:500;
  line-height:.78;letter-spacing:-.075em;
}
.visual-title i{display:block;width:42%;height:1px;background:currentColor;opacity:.38;margin:10px 0 7px}
.visual-title__sub{font-size:7px;line-height:1.45;color:rgba(23,23,27,.58);white-space:normal;max-width:80%}

/* 02 — overlapping references collected into one frame */
.visual-refs{position:absolute;inset:27% 12% 20%;z-index:2}
.visual-refs::before{
  content:"";position:absolute;left:2%;right:2%;top:50%;height:1px;
  background:rgba(23,23,27,.26);transform:rotate(-14deg);transform-origin:center;
}
.visual-refs i{
  position:absolute;width:47%;height:57%;display:block;
  border:1px solid rgba(23,23,27,.28);background:rgba(255,255,255,.3);
  box-shadow:5px 5px 0 rgba(23,23,27,.05);
  transition:transform .7s var(--ease);
}
.visual-refs i:nth-child(1){left:3%;top:14%;transform:rotate(-8deg)}
.visual-refs i:nth-child(2){left:26%;top:5%;transform:rotate(4deg)}
.visual-refs i:nth-child(3){left:49%;top:20%;transform:rotate(11deg)}
.idea:hover .visual-refs i:nth-child(1){transform:rotate(-11deg) translate(-3px,-2px)}
.idea:hover .visual-refs i:nth-child(2){transform:rotate(1deg) translateY(-4px)}
.idea:hover .visual-refs i:nth-child(3){transform:rotate(14deg) translate(3px,-1px)}
.visual-refs b{
  position:absolute;left:33%;top:31%;width:33%;aspect-ratio:1.35;z-index:2;
  border:1px solid rgba(23,23,27,.48);background:rgba(255,255,255,.34);
  box-shadow:0 0 0 4px rgba(255,255,255,.22);
}

/* 03 — motivation as a question under pressure */
.visual--03::before{
  content:"";position:absolute;left:50%;top:55%;width:min(62%,220px);aspect-ratio:1;
  border:1px solid rgba(23,23,27,.13);border-radius:50%;transform:translate(-50%,-50%);
}
.visual-motivation{
  position:absolute;left:50%;top:56%;width:min(42%,154px);aspect-ratio:1;z-index:2;
  display:grid;place-items:center;border:1px solid rgba(23,23,27,.42);border-radius:50%;
  transform:translate(-50%,-50%);transition:transform .7s var(--ease);
}
.idea:hover .visual-motivation{transform:translate(-50%,-50%) scale(1.035)}
.visual-motivation::before{
  content:"";position:absolute;inset:-25%;border:1px dashed rgba(23,23,27,.26);border-radius:50%;
}
.visual-motivation::after{
  content:"";position:absolute;left:-38%;right:-38%;top:50%;height:1px;
  background:rgba(23,23,27,.28);transform:rotate(-22deg);transform-origin:center;
}
.visual-motivation span{position:absolute;inset:16%;border:1px solid rgba(23,23,27,.2);border-radius:50%}
.visual-motivation strong{position:relative;z-index:2;font-size:clamp(14px,1.85vw,24px);font-weight:500;line-height:.9;letter-spacing:-.06em;text-align:center}

/* 04 — a staged route from research to output */
.visual-pathway{position:absolute;left:12%;right:13%;top:56%;height:1px;z-index:2;background:rgba(23,23,27,.42)}
.visual-pathway i{
  position:absolute;top:-4px;width:9px;height:9px;border-radius:50%;
  background:#e1dce9;border:1px solid rgba(23,23,27,.62);
  transition:transform .45s var(--ease),background .45s var(--ease);
}
.visual-pathway i:nth-child(1){left:0}
.visual-pathway i:nth-child(2){left:33.333%}
.visual-pathway i:nth-child(3){left:66.666%}
.visual-pathway i:nth-child(4){left:100%}
.idea:hover .visual-pathway i{background:var(--accent);transform:scale(1.18)}
.idea:hover .visual-pathway i:nth-child(2){transition-delay:.04s}
.idea:hover .visual-pathway i:nth-child(3){transition-delay:.08s}
.idea:hover .visual-pathway i:nth-child(4){transition-delay:.12s}
.visual-pathway b{
  position:absolute;right:-1px;top:-8px;width:0;height:0;
  border-left:9px solid rgba(23,23,27,.72);border-top:7px solid transparent;border-bottom:7px solid transparent;
}
.visual__route{position:absolute;left:12%;right:12%;top:29%;bottom:auto;z-index:2;color:rgba(23,23,27,.56);font-size:7px;line-height:1.4;white-space:normal}

/* 05 — production tools as a modular working grid */
.visual-stack{
  position:absolute;inset:26% 12% 20%;z-index:2;
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-template-rows:repeat(2,minmax(0,1fr));gap:6px;
}
.visual-stack span{
  position:relative;display:flex;flex-direction:column;justify-content:space-between;
  min-width:0;padding:7px;border:1px solid rgba(23,23,27,.28);background:rgba(255,255,255,.34);
  transition:background .45s var(--ease),transform .55s var(--ease);
}
.visual-stack span:nth-child(2){transform:translateY(4px)}
.visual-stack span:nth-child(3){transform:translateY(-2px)}
.idea:hover .visual-stack span{background:rgba(255,255,255,.7)}
.idea:hover .visual-stack span:nth-child(2){transform:translateY(1px)}
.idea:hover .visual-stack span:nth-child(3){transform:translateY(1px)}
.visual-stack b{font-family:var(--font-mono);font-size:7px;font-weight:400;color:rgba(23,23,27,.5)}
.visual-stack em{font-family:var(--font-mono);font-size:8px;font-style:normal;letter-spacing:.08em}

/* 06 — AI as a network with open nodes */
.visual-query{position:absolute;left:12%;right:12%;top:24%;bottom:20%;z-index:2}
.visual-query::before,.visual-query::after{
  content:"";position:absolute;left:50%;top:50%;border-radius:50%;
  transform:translate(-50%,-50%) rotate(-15deg);
}
.visual-query::before{width:61%;aspect-ratio:1;border:1px solid rgba(23,23,27,.24)}
.visual-query::after{width:97%;height:53%;border:1px dashed rgba(23,23,27,.24)}
.visual-query i{
  position:absolute;width:7px;height:7px;border-radius:50%;background:currentColor;z-index:2;
  box-shadow:0 0 0 4px rgba(255,255,255,.35);transition:transform .5s var(--ease);
}
.visual-query i:nth-child(1){left:49%;top:4%}
.visual-query i:nth-child(2){right:7%;top:35%}
.visual-query i:nth-child(3){right:18%;bottom:11%}
.visual-query i:nth-child(4){left:18%;bottom:11%}
.visual-query i:nth-child(5){left:7%;top:35%}
.idea:hover .visual-query i:nth-child(1){transform:translateY(-3px)}
.idea:hover .visual-query i:nth-child(2){transform:translate(3px,-2px)}
.idea:hover .visual-query i:nth-child(3){transform:translate(2px,3px)}
.idea:hover .visual-query i:nth-child(4){transform:translate(-2px,3px)}
.idea:hover .visual-query i:nth-child(5){transform:translate(-3px,-2px)}
.visual-query strong{
  position:absolute;left:50%;top:50%;width:min(39%,102px);aspect-ratio:1;transform:translate(-50%,-50%);
  display:grid;place-items:center;border:1px solid rgba(23,23,27,.52);border-radius:50%;
  background:rgba(255,255,255,.22);font-size:clamp(14px,1.8vw,23px);font-weight:500;line-height:1;
}

/* the same artboard language, enlarged on the flip-card front */
.idea-detail__face--front .idea__visual::before{background-size:20% 20%;opacity:.34}
.idea-detail__face--front .idea__visual::after{inset:18px}
.idea-detail__face--front .visual__meta,
.idea-detail__face--front .visual__corner{font-size:11px}
.idea-detail__face--front .visual__meta{left:30px;top:29px}
.idea-detail__face--front .visual__corner{right:30px;bottom:29px}
.idea-detail__face--front .visual-title{left:12%;right:12%;top:27%;bottom:17%}
.idea-detail__face--front .visual-title__kicker,
.idea-detail__face--front .visual-title__sub{font-size:10px}
.idea-detail__face--front .visual-title strong{font-size:clamp(56px,min(8.2vw,15vh),132px)}
.idea-detail__face--front .visual--01::after{width:min(45%,390px)}
.idea-detail__face--front .visual-refs{inset:25% 16% 21%}
.idea-detail__face--front .visual-motivation{width:min(36%,320px)}
.idea-detail__face--front .visual-motivation strong{font-size:clamp(30px,3.5vw,58px)}
.idea-detail__face--front .visual-pathway{top:55%}
.idea-detail__face--front .visual-pathway i{top:-7px;width:15px;height:15px}
.idea-detail__face--front .visual-pathway b{top:-13px;border-left-width:14px;border-top-width:11px;border-bottom-width:11px}
.idea-detail__face--front .visual__route{font-size:10px}
.idea-detail__face--front .visual-stack{gap:12px}
.idea-detail__face--front .visual-stack span{padding:14px}
.idea-detail__face--front .visual-stack b{font-size:10px}
.idea-detail__face--front .visual-stack em{font-size:12px}
.idea-detail__face--front .visual-query i{width:12px;height:12px;box-shadow:0 0 0 7px rgba(255,255,255,.35)}
.idea-detail__face--front .visual-query strong{width:33%;font-size:clamp(28px,3.2vw,54px)}

/* ---------------------------------------------------------
   POSTER UPGRADE — each panel reads as a full poster,
   not a diagram inside a colour field
   --------------------------------------------------------- */
.idea{padding:0;border:0;background:var(--bg)}
.idea__box{position:relative;inset:auto;flex:1 1 auto;min-height:0}
.idea__head{
  position:absolute;left:0;right:0;top:0;z-index:10;
  height:34px;padding:0 11px;margin:0;
  align-items:center;
  background:linear-gradient(180deg,rgba(255,255,255,.73),rgba(255,255,255,.2) 68%,transparent);
  -webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);
}
.idea__num{font-size:9px;color:rgba(23,23,27,.58)}
.idea__title{font-size:11px;line-height:1;letter-spacing:.015em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.idea__head::after{font-size:10px}

.idea__visual{
  color:var(--poster-ink,#17171b);
  background:var(--poster-paper,var(--bg-soft));
}
.idea__visual::before{
  content:"";position:absolute;inset:0;z-index:2;pointer-events:none;
  background-image:radial-gradient(circle,currentColor .65px,transparent .8px);
  background-size:8px 8px;opacity:.13;
  mask-image:linear-gradient(135deg,#000 0%,transparent 73%);
  -webkit-mask-image:linear-gradient(135deg,#000 0%,transparent 73%);
}
.idea__visual::after{
  content:"";position:absolute;inset:7px;z-index:4;pointer-events:none;
  border:1px solid rgba(23,23,27,.14);
}
.visual--01::after,.visual--03::before{content:none}

.visual--01,.visual--02,.visual--03,.visual--04,.visual--05,.visual--06{
  --poster-accent:#bf3d18;
  --poster-ink:#17171b;
  --poster-paper:#ece8df;
}
.visual--03{--num-rotate:2deg}

.poster-svg{
  position:absolute;inset:0;z-index:0;width:100%;height:100%;
  pointer-events:none;transition:transform .9s var(--ease);
}
.idea:hover .poster-svg{transform:scale(1.025)}
.poster-number{
  position:absolute;right:-.045em;top:-.19em;z-index:1;
  color:rgba(23,23,27,.08);-webkit-text-stroke:1px currentColor;
  font-size:clamp(78px,11vw,154px);font-weight:600;line-height:.68;
  letter-spacing:-.13em;pointer-events:none;
  transform:rotate(var(--num-rotate,-2deg));
  transition:transform .8s var(--ease),opacity .5s var(--ease);
}
.idea:hover .poster-number{transform:rotate(var(--num-rotate,-2deg)) scale(1.035)}
.poster-kicker{
  position:absolute;left:12px;top:41px;z-index:3;
  color:rgba(23,23,27,.64);font-size:7px;line-height:1;
}
.poster-headline{
  position:absolute;z-index:3;display:flex;flex-direction:column;
  color:var(--poster-ink);font-size:clamp(28px,3.35vw,46px);
  font-weight:600;line-height:.74;letter-spacing:-.075em;
  text-transform:uppercase;pointer-events:none;
  transition:transform .7s var(--ease);
}
.idea:hover .poster-headline{transform:translateY(-3px)}
.poster-headline span,.poster-headline strong{display:block;white-space:nowrap}
.poster-headline strong{color:var(--poster-accent);font-weight:600}
.poster-note{
  position:absolute;left:12px;bottom:12px;z-index:3;
  max-width:calc(66% - 24px);color:rgba(23,23,27,.68);
  font-size:7px;line-height:1.4;white-space:normal;
}
.poster-badge{
  position:absolute;right:12px;bottom:12px;z-index:3;
  max-width:36%;padding:4px 6px;background:var(--poster-ink);color:var(--poster-paper);
  font-size:7px;line-height:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.visual--01 .poster-headline{left:10%;right:27%;bottom:24%}
.visual--02 .poster-headline{left:9%;right:8%;top:36%}
.visual--03 .poster-headline{left:44%;right:7%;bottom:24%}
.visual--04 .poster-headline{left:8%;right:37%;top:34%}
.visual--05 .poster-headline{left:43%;right:7%;top:38%}
.visual--06 .poster-headline{left:8%;right:36%;bottom:22%}
.visual--02 .poster-number{right:auto;left:-.05em;top:auto;bottom:-.18em;--num-rotate:-6deg}
.visual--03 .poster-number{right:auto;left:-.05em;top:-.19em;--num-rotate:-3deg}
.visual--04 .poster-number{right:-.05em;top:auto;bottom:-.2em;--num-rotate:3deg}
.visual--05 .poster-number{right:auto;left:37%;top:34%;--num-rotate:0deg}
.visual--06 .poster-number{right:-.05em;top:auto;bottom:-.2em;--num-rotate:-4deg}

/* poster proportions in the expanded flip face */
.idea-detail__face--front .idea__visual::before{background-size:14px 14px;opacity:.11}
.idea-detail__face--front .idea__visual::after{inset:18px;border-color:rgba(23,23,27,.18)}
.idea-detail__face--front .poster-number{font-size:clamp(190px,25vw,360px)}
.idea-detail__face--front .poster-kicker{left:30px;top:34px;font-size:11px}
.idea-detail__face--front .poster-headline{font-size:clamp(66px,9vw,154px)}
.idea-detail__face--front .poster-note{left:30px;bottom:30px;max-width:58%;font-size:11px}
.idea-detail__face--front .poster-badge{right:30px;bottom:30px;max-width:34%;padding:8px 11px;font-size:11px}
/* cards are clickable */
.idea{cursor:pointer}
.idea:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.ideas{transition:opacity .5s var(--ease),filter .5s var(--ease)}
.chapter--idea.is-expanded .ideas{opacity:.22}

/* expanded card: grows out of the clicked rectangle, then flips to its back */
/* viewport-fixed so the expanded card is always centred on screen,
   no matter where the page happens to be scrolled to */
.idea-detail{
  position:fixed;inset:0;z-index:160;
  pointer-events:none;
  perspective:1600px;
  /* must actually leave the render tree when closed: the layer is fixed, so a
     leftover box would stay pinned to the screen and float over the page */
  visibility:hidden;
  transition:visibility 0s linear .45s;
}
.idea-detail.is-open{
  pointer-events:auto;
  visibility:visible;
  transition:visibility 0s;
}
.idea-detail__scrim{
  position:absolute;inset:0;border:0;padding:0;cursor:zoom-out;
  background:rgba(var(--bg-rgb),.9);
  opacity:0;transition:opacity .45s var(--ease);
}
.idea-detail.is-open .idea-detail__scrim{opacity:1}
.idea-detail__box{
  position:absolute;
  transform-style:preserve-3d;
  transition:top .5s cubic-bezier(.45,.05,.25,1),left .5s cubic-bezier(.45,.05,.25,1),width .5s cubic-bezier(.45,.05,.25,1),height .5s cubic-bezier(.45,.05,.25,1);
}
.idea-detail__flip{
  position:absolute;inset:0;
  transform-style:preserve-3d;
  transition:transform .56s cubic-bezier(.46,.06,.2,1);
}
.idea-detail.is-flipped .idea-detail__flip{transform:rotateY(180deg)}
/* closing: overlap the flip with the shrink and tighten every duration,
   so the page is released in well under a second */
/* closing mirrors the opening exactly: 500ms size change, 560ms flip
   with the same 70ms head start */
.idea-detail.is-closing .idea-detail__box{
  transition-duration:.5s;
  transition-timing-function:cubic-bezier(.45,.05,.25,1);
}
.idea-detail.is-closing .idea-detail__flip{
  transition-duration:.56s;
  transition-timing-function:cubic-bezier(.46,.06,.2,1);
  transition-delay:.07s;
}
.idea-detail.is-closing .idea-detail__scrim{transition-duration:.16s}
.idea-detail.is-closing{transition:visibility 0s linear .16s}
.idea-detail__face{
  position:absolute;inset:0;overflow:hidden;
  backface-visibility:hidden;-webkit-backface-visibility:hidden;
}
.idea-detail__face--front{background:var(--bg-soft);pointer-events:none}
.idea-detail__face--back{
  transform:rotateY(180deg);
  background:var(--bg);
  border:1px solid var(--line-strong);
  display:flex;flex-direction:column;
  box-shadow:0 30px 80px -44px rgba(23,23,27,.45);
}
.idea-detail__bar{
  flex:none;display:flex;justify-content:space-between;align-items:center;gap:16px;
  padding:clamp(11px,1.8vh,20px) clamp(14px,1.8vw,26px);
  border-bottom:1px solid var(--line);color:var(--muted);
}
.idea-detail__bar>span:first-child{color:var(--accent)}
.idea-detail__close{cursor:pointer;color:var(--fg);transition:color .3s var(--ease)}
.idea-detail__close:hover{color:var(--accent)}
/* ---------- the flipped card plays its content as a paged deck ---------- */
.idea-detail__bar{gap:clamp(10px,1.4vw,20px)}
.idea-detail__no{flex:none;color:var(--accent)}
.idea-detail__kicker{
  flex:1;min-width:0;margin:0;font-weight:600;font-size:12.5px;color:var(--fg);
  letter-spacing:.1em;text-transform:uppercase;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.idea-detail__count{flex:none;color:var(--fg);font-variant-numeric:tabular-nums}
.idea-detail__close{flex:none}

.idea-deck{flex:1;min-height:0;position:relative;overflow:hidden}
.idea-deck__track{
  display:flex;flex-wrap:nowrap;width:100%;height:100%;
  transition:transform .68s var(--ease);will-change:transform;
}
.idea-deck.is-dragging{cursor:grabbing}
.idea-deck.is-dragging .idea-deck__track{transition:none}

.idea-slide{
  position:relative;
  flex:0 0 100%;width:100%;height:100%;
  display:flex;flex-direction:column;
  gap:clamp(10px,1.65vh,18px);
  padding:clamp(18px,3.3vh,36px) clamp(24px,4.2vw,74px) clamp(12px,2.3vh,26px);
  overflow-y:auto;overscroll-behavior:contain;
  scrollbar-width:thin;scrollbar-color:var(--line-strong) transparent;
}
.idea-slide::-webkit-scrollbar{width:5px}
.idea-slide::-webkit-scrollbar-track{background:transparent}
.idea-slide::-webkit-scrollbar-thumb{background:var(--line-strong);border-radius:99px}
@media (min-width:901px){
  .idea-slide{padding-right:clamp(56px,6.4vw,104px)}
}

/* page content rises in when its page becomes active */
.idea-slide>*{
  /* never squash: a page that runs long scrolls instead of compressing */
  flex:0 0 auto;
  opacity:0;transform:translateY(14px);
  transition:opacity .7s var(--ease),transform .7s var(--ease);
}
.idea-slide.is-active>*{opacity:1;transform:none}
.idea-slide.is-active>*:nth-child(1){transition-delay:.05s}
.idea-slide.is-active>*:nth-child(2){transition-delay:.11s}
.idea-slide.is-active>*:nth-child(3){transition-delay:.17s}
.idea-slide.is-active>*:nth-child(4){transition-delay:.23s}
.idea-slide.is-active>*:nth-child(5){transition-delay:.29s}

/* --- band 1: eyebrow left, hairline page numeral right --- */
.idea-slide__top{
  display:flex;align-items:flex-start;justify-content:space-between;
  gap:clamp(14px,2vw,32px);
  padding-bottom:clamp(8px,1.4vh,15px);
  border-bottom:1px solid var(--line-strong);
}
.idea-slide__eyebrow{
  margin:0;color:var(--accent);padding-top:.5em;
  font-family:var(--font-mono);font-size:11.5px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;
}
.idea-slide__num{
  flex:none;margin-top:-.14em;
  font-size:clamp(46px,7.4vh,94px);
  font-weight:500;line-height:.74;letter-spacing:-.05em;
  color:rgba(23,23,27,.06);
  -webkit-text-stroke:1px var(--line-strong);
  user-select:none;
}

/* --- band 2: the statement --- */
.idea-slide__head{display:flex;flex-direction:column;gap:clamp(7px,1.2vh,13px);max-width:88ch}
.idea-slide__title{
  margin:0;font-weight:600;letter-spacing:-.035em;line-height:1.04;
  font-size:clamp(29px,min(4.5vw,5.9vh),66px);
}
.idea-slide__sub{margin:0;color:var(--muted);font-size:clamp(15px,1.92vh,18px);line-height:1.42;max-width:72ch}
.idea-slide__lead{margin:0;font-size:clamp(13px,1.8vh,17px);line-height:1.58;max-width:78ch}

/* sparse pages: titles and short explanations occupy the full page instead of
   stacking at the top and leaving a large empty band below */
.idea-slide--sparse .idea-slide__body{align-items:center}
.idea-slide--sparse .idea-slide__main{justify-content:center;gap:clamp(18px,3.2vh,34px)}
.idea-slide--sparse .idea-slide__head{gap:clamp(10px,1.8vh,18px);max-width:94ch}
.idea-slide--sparse .idea-slide__title{font-size:clamp(36px,min(5.8vw,7.6vh),82px);line-height:1}
.idea-slide--sparse .idea-slide__sub{font-size:clamp(14px,1.75vh,18px)}
.idea-slide--sparse .idea-slide__lead{max-width:74ch;font-size:clamp(14px,1.95vh,18px);line-height:1.62}

/* merged introduction page */
.idea-slide--intro .idea-slide__body{align-items:center}
.idea-slide--intro .idea-slide__main{gap:clamp(16px,2.8vh,28px)}
.idea-slide--intro .idea-slide__head{max-width:100%}
.idea-slide--intro .idea-slide__title{font-size:clamp(42px,min(7vw,9vh),96px);letter-spacing:-.055em}
.idea-slide--intro .idea-slide__sub{font-family:var(--font-mono);font-size:clamp(11px,1.5vh,13px);letter-spacing:.08em;text-transform:uppercase}
.idea-slide--intro .idea-slide__lead{max-width:66ch}
.idea-slide--intro .idea-slide__rows{flex:0 0 auto;grid-template-columns:repeat(3,minmax(0,1fr))!important;border-top:1px solid var(--line-strong);border-bottom:0;margin-top:clamp(14px,2.4vh,28px)}
.idea-slide--intro .idea-row{display:flex;flex-direction:column;align-items:flex-start;gap:6px;padding:clamp(12px,2vh,20px) clamp(10px,1.6vw,24px);border-top:0;border-left:1px solid var(--line)}
.idea-slide--intro .idea-row:first-child{border-left:0;padding-left:0}
.idea-slide--intro .idea-row__k{font-family:var(--font-mono);font-size:clamp(13.5px,1.72vh,16px);font-weight:700;letter-spacing:.12em;color:var(--accent);text-transform:uppercase}
.idea-slide--intro .idea-row__v{font-size:clamp(14.5px,1.88vh,17.5px);line-height:1.45}
.idea-slide--intro.is-active .idea-row{animation:introRowIn .7s var(--ease) both;animation-delay:calc(.2s + var(--ri,0) * .12s)}
@keyframes introRowIn{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}

/* nine-layer page */
.idea-slide--layers .idea-slide__body--split{grid-template-columns:minmax(0,1.04fr) minmax(0,.96fr);column-gap:clamp(28px,4vw,64px)}
.idea-slide--layers .idea-slide__head{max-width:100%}
.idea-slide--layers .idea-slide__title{font-size:clamp(34px,min(5.1vw,6.9vh),76px)}
.idea-slide--layers .idea-slide__lead{max-width:44ch}
.idea-slide--layers .idea-slide__rows{flex:0 0 auto;border-top:1px solid var(--line);border-bottom:0}
.idea-slide--layers .idea-row{grid-template-columns:minmax(0,108px) 1fr;padding:10px 0}
.idea-slide--layers .idea-row__k{font-family:var(--font-mono);letter-spacing:.12em;color:var(--accent)}
.idea-slide--layers .idea-slide__figure{justify-content:center}
.idea-slide--layers .idea-slide__figure-art{min-height:270px}
.idea-slide--layers.is-active .idea-row{animation:layerRowIn .72s var(--ease) both;animation-delay:calc(.2s + var(--ri,0) * .14s)}
.idea-slide--layers .idea-slide__title,
.idea-slide--intro .idea-slide__title{position:relative}
.idea-slide--layers .idea-slide__title::after,
.idea-slide--intro .idea-slide__title::after{
  content:"";display:block;width:clamp(54px,7vw,108px);height:2px;margin-top:clamp(12px,1.8vh,18px);
  background:var(--accent);transform:scaleX(0);transform-origin:left;
}
.idea-slide--layers.is-active .idea-slide__title::after,
.idea-slide--intro.is-active .idea-slide__title::after{animation:titleRule .8s var(--ease) .25s forwards}
@keyframes titleRule{to{transform:scaleX(1)}}
@keyframes layerRowIn{from{opacity:0;transform:translateX(-18px)}to{opacity:1;transform:none}}

/* axis animation: lines draw and numbers appear when the page becomes active */
.nine-axis{stroke-dasharray:280;stroke-dashoffset:280}
.nine-line{stroke-dasharray:190;stroke-dashoffset:190}
.nine-num,.nine-tick,.nine-name{opacity:0}
.nine-trail,.nine-trace,.nine-trace-echo,.nine-pulse{opacity:0;transition:opacity .3s ease}
.idea-slide.is-active .nine-axis{animation:nineAxis 1.2s var(--ease) forwards}
.idea-slide.is-active .nine-line{animation:nineLine .8s var(--ease) forwards;animation-delay:calc(var(--i) * .08s)}
.idea-slide.is-active .nine-num{animation:nineFade .5s ease forwards;animation-delay:calc(var(--i) * .08s + .24s)}
.idea-slide.is-active .nine-tick{animation:nineFade .5s ease forwards;animation-delay:.72s}
.idea-slide.is-active .nine-name{animation:nineFade .5s ease forwards;animation-delay:calc(var(--i) * .08s + .30s)}
.idea-slide.is-active .nine-trace,
.idea-slide.is-active .nine-trace-echo,
.idea-slide.is-active .nine-pulse{opacity:1}
.idea-slide.is-active .nine-trail--1{opacity:.55}
.idea-slide.is-active .nine-trail--2{opacity:.32}
.idea-slide.is-active .nine-trail--3{opacity:.16}
@keyframes nineAxis{to{stroke-dashoffset:0}}
@keyframes nineLine{to{stroke-dashoffset:0}}
@keyframes nineFade{to{opacity:1}}

/* 3 x 3 layer matrix */
.idea-slide--matrix .idea-slide__body{align-items:stretch}
.idea-slide--matrix .idea-slide__main{flex:1 1 auto;gap:clamp(8px,1.25vh,14px)}
.idea-slide--matrix .idea-slide__head{max-width:100%}
.idea-slide--matrix .idea-slide__title{font-size:clamp(32px,min(4.6vw,6.1vh),64px)}
.idea-slide--matrix .idea-slide__sub{max-width:64ch;font-size:clamp(12px,1.5vh,14px)}
.idea-slide--matrix .idea-slide__cols{
  flex:1 1 auto;display:grid!important;
  grid-template-columns:repeat(3,minmax(0,1fr));
  grid-template-rows:repeat(3,minmax(0,1fr));
  gap:clamp(6px,.85vw,10px);
  border-bottom:0;padding-top:clamp(4px,.8vh,8px);
}
.idea-slide--matrix .idea-col{
  position:relative;overflow:hidden;justify-content:space-between;gap:8px;
  border:1px solid var(--line);padding:clamp(8px,1vw,13px);
  background:rgba(255,255,255,.18);
  opacity:0;transform:translateY(14px) scale(.98);
  transition:border-color .45s var(--ease),background .45s var(--ease),transform .55s var(--ease);
}
.idea-slide--matrix .idea-col:hover{border-color:var(--accent);background:rgba(255,255,255,.36);transform:translateY(-3px) scale(1.014)}
.idea-slide--matrix.is-active .idea-col{animation:matrixIn .68s var(--ease) both;animation-delay:calc(var(--i,0) * .065s)}
.idea-slide--matrix .idea-col__k{font-family:var(--font-mono);font-size:clamp(15px,2.75vh,22px);font-weight:700;line-height:1.14;letter-spacing:.025em;color:var(--accent);text-transform:uppercase}
.idea-slide--matrix .idea-col__v{font-size:clamp(12.5px,1.72vh,15.5px);line-height:1.36;color:var(--fg)}
.idea-slide--matrix .idea-col::after{
  content:"";position:absolute;right:10px;top:10px;width:5px;height:5px;border-radius:50%;
  background:var(--accent);opacity:.24;
  animation:matrixPulse 2.8s ease-in-out infinite;animation-delay:calc(var(--i,0) * .2s);
}
/* short windows: the 3 x 3 map is the tightest page in the deck, so it
   compresses first rather than letting the sheet scroll */
@media (max-height:820px){
  .idea-slide--matrix .idea-col{padding:clamp(6px,.8vw,10px);gap:6px}
  .idea-slide--matrix .idea-col__k{font-size:clamp(13px,2.15vh,18px)}
  .idea-slide--matrix .idea-col__v{font-size:clamp(11.5px,1.5vh,13.5px)}
  .idea-slide--matrix .idea-slide__sub{font-size:clamp(11.5px,1.4vh,13px)}
  .idea-slide--matrix .idea-slide__cols{gap:clamp(5px,.7vw,8px);padding-top:4px}
}
@keyframes matrixIn{from{opacity:0;transform:translateY(14px) scale(.98)}to{opacity:1;transform:none}}
@keyframes matrixPulse{0%,100%{transform:scale(.75);opacity:.2}50%{transform:scale(1.4);opacity:.8}}

/* time-comparison figure */
.time-axis{stroke-dasharray:250;stroke-dashoffset:250}
.time-ratio-line{stroke-dasharray:220;stroke-dashoffset:220}
.time-bar{transform-box:fill-box;transform-origin:bottom;transform:scaleY(0)}
.time-dot,.time-pulse,.time-label,.time-caption,.time-ratio,.time-tick,.time-attention,.time-attention-label{opacity:0}
.time-pulse,.time-attention,.time-attention-label{transition:opacity .3s ease}
.time-attention{transform-box:fill-box;transform-origin:left;transform:scaleX(0)}
.idea-slide.is-active .time-axis{animation:nineAxis 1.05s var(--ease) forwards}
.idea-slide.is-active .time-ratio-line{animation:nineLine 1.1s var(--ease) .28s forwards}
.idea-slide.is-active .time-bar--short{animation:timeGrow .7s var(--ease) .14s forwards}
.idea-slide.is-active .time-bar--long{animation:timeGrow .7s var(--ease) .36s forwards}
.idea-slide.is-active .time-dot,
.idea-slide.is-active .time-pulse,
.idea-slide.is-active .time-label,
.idea-slide.is-active .time-caption,
.idea-slide.is-active .time-ratio,
.idea-slide.is-active .time-tick{animation:nineFade .5s ease forwards;animation-delay:.34s}
.idea-slide.is-active .time-pulse--long,
.idea-slide.is-active .time-label--long,
.idea-slide.is-active .time-caption--long{animation-delay:.54s}
.idea-slide.is-active .time-attention{opacity:.16;animation:timeAttentionGrow 1.8s var(--ease) .55s forwards}
.idea-slide.is-active .time-attention-label{opacity:1;animation:nineFade .5s ease 1.5s forwards}
@keyframes timeAttentionGrow{to{transform:scaleX(1)}}
@keyframes timeGrow{to{transform:scaleY(1)}}

/* compact split page for the motivation content */
.idea-slide--motivation .idea-slide__body{min-height:0}
.idea-slide--motivation .idea-slide__main{min-height:0;gap:clamp(8px,1.25vh,14px)}
.idea-slide--motivation .idea-slide__lead{font-size:clamp(13px,1.7vh,16px);line-height:1.46;max-width:70ch}
.idea-slide--motivation .idea-slide__rows{min-height:0;grid-auto-rows:minmax(0,1fr)}
.idea-slide--motivation .idea-row{padding:clamp(7px,1.1vh,11px) 0}
.idea-slide--motivation .idea-row__v{font-size:clamp(14px,1.8vh,17px);line-height:1.42}
.idea-slide--motivation .idea-slide__figure{min-height:0}
.idea-slide--motivation .idea-slide__figure-art{min-height:190px}

/* long rows: keep three or four of them on one page at any window height */
.idea-slide--tight .idea-slide__body{min-height:0}
.idea-slide--tight .idea-slide__main{min-height:0;gap:clamp(8px,1.2vh,14px)}
.idea-slide--tight .idea-slide__rows{min-height:0;grid-auto-rows:minmax(0,1fr)}
.idea-slide--tight .idea-row{padding:clamp(5px,.85vh,9px) 0}
.idea-slide--tight .idea-row__v{font-size:clamp(13.5px,1.72vh,16px);line-height:1.42}
.idea-slide--texts .idea-slide__body{min-height:0}
.idea-slide--texts .idea-slide__top{padding-bottom:6px}
.idea-slide--texts .idea-slide__num{font-size:clamp(30px,4.5vh,54px)}
.idea-slide--texts .idea-slide__rows{min-height:0;grid-auto-rows:minmax(0,1fr)}
.idea-slide--texts .idea-row{padding:clamp(5px,.9vh,9px) 0}
.idea-slide--texts .idea-row__v{font-size:clamp(14px,1.8vh,17px);line-height:1.42}

/* --- band 3: entries as a ruled grid; column count is set per page in JS --- */
.idea-slide .idea-slide__rows,
.idea-slide .idea-slide__cols{
  flex:1 1 auto;
  display:grid;
  grid-auto-rows:minmax(min-content,1fr); /* rows share the band, never squash */
  column-gap:clamp(24px,3.4vw,64px);
  border-bottom:1px solid var(--line);    /* close the ruled block */
}
.idea-slide__rows{grid-template-columns:repeat(var(--entry-cols,1),minmax(0,1fr))}
.idea-slide__cols{grid-template-columns:repeat(auto-fit,minmax(min(300px,100%),1fr))}

.idea-row{
  display:grid;grid-template-columns:minmax(0,clamp(126px,14vw,196px)) 1fr;
  gap:clamp(12px,1.6vw,26px);
  align-content:center;align-items:baseline;
  padding:clamp(8px,1.4vh,15px) 0;
  border-top:1px solid var(--line);
}
.idea-row__k{
  display:flex;align-items:center;gap:9px;
  font-family:var(--font-mono);font-size:clamp(15px,1.95vh,18.5px);font-weight:700;letter-spacing:.08em;
  text-transform:uppercase;color:var(--accent);line-height:1.28;
}
.idea-row__k::before{content:"";flex:none;width:11px;height:1px;background:var(--accent)}
.idea-row__v{font-size:clamp(14px,1.85vh,17.5px);line-height:1.48}
/* a page with few entries runs one column, so the type can carry the band */
.idea-slide__rows--solo .idea-row__k{font-size:clamp(16px,2.15vh,20px)}
.idea-slide__rows--solo .idea-row__v{font-size:clamp(15.5px,2.05vh,19.5px);line-height:1.44}

.idea-col{
  display:flex;flex-direction:column;justify-content:center;gap:6px;
  padding:clamp(8px,1.4vh,15px) 0;
  border-top:1px solid var(--line);
}
.idea-col__k{font-family:var(--font-mono);font-size:11.5px;font-weight:700;letter-spacing:.05em;color:var(--accent)}
.idea-col__v{font-size:clamp(14px,1.82vh,17px);line-height:1.42;color:var(--muted)}
/* --- body: one column, or two when the page carries a figure --- */
.idea-slide .idea-slide__body{
  flex:1 1 auto;                /* may grow, but never shrinks below its content */
  display:grid;grid-template-columns:minmax(0,1fr);
  column-gap:clamp(26px,3.6vw,60px);
}
.idea-slide .idea-slide__body--split{grid-template-columns:minmax(0,1fr) minmax(0,0.66fr)}
.idea-slide__main{display:flex;flex-direction:column;gap:clamp(12px,2vh,22px)}
.idea-slide .idea-slide__main .idea-slide__rows,
.idea-slide .idea-slide__main .idea-slide__cols,
.idea-slide .idea-slide__main .idea-slide__plates{flex:1 1 auto}

.idea-slide__figure{
  display:flex;flex-direction:column;gap:10px;min-height:0;
  border-left:1px solid var(--line);
  padding-left:clamp(18px,2.4vw,40px);
}
.idea-slide__figure-art{flex:1 1 0;display:grid;place-items:center;min-height:120px;overflow:hidden}
.idea-slide__figure-art svg{width:100%;height:100%}
.idea-slide__figure-cap{color:var(--muted);font-size:9.5px;letter-spacing:.13em;text-transform:uppercase}

/* --- plates: a shelf of visual references --- */
.idea-slide__plates{
  display:grid;
  grid-template-columns:repeat(var(--plate-cols,3),minmax(0,1fr));
  grid-auto-rows:minmax(min-content,1fr);
  column-gap:clamp(18px,2.6vw,42px);
  row-gap:clamp(12px,2vh,24px);
}
.plate{
  display:flex;flex-direction:column;gap:7px;min-height:0;
  padding-top:clamp(8px,1.3vh,13px);
  border-top:1px solid var(--line);
}
.plate__art{
  /* flex-basis 0 so the art takes whatever the plate has left, instead of
     letting the SVG's intrinsic ratio push the whole shelf taller */
  flex:1 1 0;min-height:46px;overflow:hidden;
  display:grid;place-items:center;padding:6px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.42);
}
.plate__art svg{width:100%;height:100%;max-height:100%}
/* a real image sits in the same frame as a drawn motif */
.plate__art img,
.idea-slide__figure-art img{
  width:100%;height:100%;object-fit:contain;display:block;
}
/* one tonal treatment for every reference plate: near-monochrome, like the page */
.plate__art img{filter:grayscale(.9) contrast(1.05)}
.idea-slide__figure-art img{filter:saturate(.86) contrast(1.02)}
.plate__body{display:flex;flex-direction:column;gap:7px;min-width:0}
.plate__k{color:var(--accent);font-weight:700;font-size:clamp(16px,2vh,19px);letter-spacing:.07em}
.plate__v{font-size:clamp(12px,1.5vh,14.5px);line-height:1.45}

/* --- card 03 · art references: 2 x 2 sheet that fills its band --- */
/* flex-basis 0 gives the band a definite height, so the frames can size to it */
.idea-slide--refs .idea-slide__main .idea-slide__plates{
  flex:1 1 0;min-height:0;
  --plate-cols:2;
  grid-auto-rows:minmax(0,1fr);
  column-gap:clamp(20px,2.6vw,46px);
  row-gap:clamp(11px,1.7vh,18px);
}
.idea-slide--refs .plate{
  display:flex;flex-direction:row;align-items:center;
  gap:clamp(12px,1.45vw,22px);
  min-height:0;
  padding-top:clamp(8px,1.2vh,12px);
}
/* the picture is a reference thumb, not the hero: it keeps a 3:2 frame and
   leaves the rest of the cell to the note, which carries the page */
.idea-slide--refs .plate__art{
  flex:0 0 auto;align-self:center;
  width:auto;height:68%;aspect-ratio:3 / 2;max-width:52%;
  min-height:0;padding:0;
}
.idea-slide--refs .plate__art img{object-fit:cover}
.idea-slide--refs .plate__body{flex:1 1 auto;justify-content:center;gap:6px}
.idea-slide--refs .plate__v{font-size:clamp(15.5px,1.95vh,18.5px);line-height:1.4}
.idea-slide--refs .plate--neg{border-top-style:dashed;border-top-color:var(--line-strong)}
.idea-slide--refs .plate--neg .plate__k{color:var(--accent)}

/* --- entrance: the body and the figure rise with the page --- */
.idea-slide__main>*,
.idea-slide__figure{
  opacity:0;transform:translateY(14px);
  transition:opacity .7s var(--ease),transform .7s var(--ease);
}
.idea-slide.is-active .idea-slide__main>*,
.idea-slide.is-active .idea-slide__figure{opacity:1;transform:none}
.idea-slide.is-active .idea-slide__main>*:nth-child(1){transition-delay:.11s}
.idea-slide.is-active .idea-slide__main>*:nth-child(2){transition-delay:.17s}
.idea-slide.is-active .idea-slide__main>*:nth-child(3){transition-delay:.23s}
.idea-slide.is-active .idea-slide__main>*:nth-child(4){transition-delay:.29s}
.idea-slide.is-active .idea-slide__figure{transition-delay:.2s}
/* --- band 4: closing line, pinned to the foot of the page --- */
.idea-slide__note{
  padding-top:clamp(11px,1.9vh,20px);
  border-top:1px solid var(--line-strong);
  font-size:clamp(14px,1.85vh,17px);line-height:1.5;max-width:92ch;
}
.idea-slide__note::before{content:"\2014";color:var(--accent);margin-right:.55em}
.idea-deck__rail{
  position:absolute;right:clamp(6px,1.1vw,16px);top:50%;transform:translateY(-50%);
  display:flex;flex-direction:column;gap:7px;list-style:none;margin:0;padding:0;z-index:2;
}
.idea-deck__rail li{display:flex;justify-content:flex-end}
.idea-rail__item{
  display:flex;align-items:center;gap:9px;
  font-family:var(--font-mono);font-size:9px;letter-spacing:.1em;
  color:var(--muted);opacity:.5;
  transition:opacity .35s var(--ease),color .35s var(--ease);
}
.idea-rail__item::after{content:"";width:12px;height:1px;background:currentColor;transition:width .35s var(--ease)}
.idea-rail__item:hover{opacity:1}
.idea-rail__item.is-active{opacity:1;color:var(--accent)}
.idea-rail__item.is-active::after{width:26px}

.idea-detail__nav{
  flex:none;display:flex;align-items:center;gap:clamp(10px,1.6vw,20px);
  padding:clamp(9px,1.6vh,16px) clamp(14px,1.8vw,26px);
  border-top:1px solid var(--line);
}
.idea-nav{
  flex:none;width:clamp(30px,4.2vh,38px);height:clamp(30px,4.2vh,38px);
  display:grid;place-items:center;border:1px solid var(--line-strong);border-radius:50%;
  font-size:12px;line-height:1;
  transition:background .3s var(--ease),color .3s var(--ease),border-color .3s var(--ease),opacity .3s var(--ease);
}
.idea-nav:hover{background:var(--fg);color:var(--bg);border-color:var(--fg)}
.idea-nav:disabled{opacity:.22;pointer-events:none}
.idea-nav__track{flex:1;height:1px;background:var(--line);position:relative;overflow:hidden}
.idea-nav__track i{position:absolute;left:0;top:0;bottom:0;width:0;background:var(--accent);transition:width .55s var(--ease)}
.idea-nav__hint{
  flex:0 1 auto;min-width:0;color:var(--muted);font-size:9px;letter-spacing:.16em;
  text-transform:uppercase;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:min(30ch,30vw);
}
/* the arrow turns into a hand-over to the next card at either end */
.idea-nav.is-jump{border-color:var(--accent);color:var(--accent)}
.idea-nav.is-jump:hover{background:var(--accent);border-color:var(--accent);color:var(--bg)}

@media (max-width:900px){
  .idea-deck__rail{display:none}
  .idea-nav__hint{display:none}
  .idea-slide__rows{grid-template-columns:1fr !important}
  .idea-slide__cols{grid-template-columns:1fr}
  .idea-slide__body--split{grid-template-columns:1fr;row-gap:14px}
  .idea-slide__figure{border-left:0;padding-left:0;border-top:1px solid var(--line);padding-top:12px;max-height:230px}
  .idea-slide__plates{grid-template-columns:1fr}
  .idea-slide__top{padding-bottom:6px}
  .idea-slide__num{font-size:clamp(38px,5.6vh,62px)}
  .idea-slide{padding:clamp(18px,3.4vh,38px) clamp(18px,5vw,34px) clamp(14px,2.6vh,30px);gap:clamp(10px,1.6vh,18px)}
}
/* short windows in the 640-900 range: the sheet keeps two columns, so the
   pictures stay a usable size instead of being squeezed into one stacked row */
@media (max-width:900px) and (min-aspect-ratio:1/1){
  .idea-slide--refs .idea-slide__plates{grid-template-columns:repeat(2,minmax(0,1fr))}
}

/* phone: the reference plates stack, and the rows size to their content */
@media (max-width:640px){
  .idea-slide--refs .idea-slide__plates{grid-template-columns:1fr}
  .idea-slide--refs .idea-slide__main .idea-slide__plates{flex:0 0 auto;grid-auto-rows:min-content}
  .idea-slide--refs .plate{flex-direction:column;align-items:stretch;gap:8px}
  .idea-slide--refs .plate__art{width:100%;height:auto;max-width:100%;align-self:auto;aspect-ratio:16 / 9}
  .idea-slide--refs .plate__body{justify-content:flex-start}
}
@media (prefers-reduced-motion:reduce){
  .idea-deck__track{transition:none}
  .idea-slide>*{opacity:1;transform:none;transition:none}
}
.marquee{flex:none;overflow:hidden;margin-top:clamp(14px,3vh,34px);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:10px 0}
.marquee__track{display:flex;gap:28px;white-space:nowrap;width:max-content;animation:marquee 24s linear infinite}
.marquee__track span{font-size:clamp(22px,min(4.4vw,4.6vh),52px);font-weight:500;letter-spacing:-.03em;text-transform:uppercase;line-height:1}
.marquee__track span:nth-child(even){color:var(--accent)}
.marquee:hover .marquee__track{animation-play-state:paused}

/* =========================================================
   04 ABOUT
   ========================================================= */
.about{flex:1 1 auto;min-height:0;display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:clamp(20px,4vw,64px);align-items:stretch}
.about__portrait{position:relative;overflow:hidden;background:var(--bg-soft);min-height:0;height:100%}
.about__portrait-inner{
  position:absolute;inset:-8% 0;background:linear-gradient(160deg,var(--paper-warm),#cbbfb0 60%,#8f8578);
  display:flex;align-items:flex-end;padding:18px;color:var(--fg);
}
.about__body{display:flex;flex-direction:column;gap:clamp(7px,1.3vh,16px);min-height:0}
.about__lead{font-size:clamp(17px,min(2.5vw,2.9vh),32px);line-height:1.14;letter-spacing:-.025em}
.about__text{color:var(--muted);max-width:60ch;font-size:clamp(12px,1.45vh,14px);line-height:1.55}
.meta{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(7px,1.2vh,14px) 24px;border-top:1px solid var(--line);padding-top:clamp(7px,1.2vh,14px)}
.meta dt{font-size:10px}
.meta dd{font-size:13px}
.awards li{padding:clamp(5px,0.95vh,11px) 0;font-size:clamp(12px,1.4vh,14px)}
.chapter--about .chapter__title{font-size:clamp(28px,min(7.6vw,9vh),110px)}
.meta dt{color:var(--muted);margin-bottom:6px}
.meta dd a{border-bottom:1px solid var(--line-strong);transition:border-color .4s ease,color .4s ease}
.meta dd a:hover{color:var(--accent);border-color:var(--accent)}
.awards{border-top:1px solid var(--line)}
.awards li{display:grid;grid-template-columns:72px 1fr;gap:14px;padding:14px 0;border-bottom:1px solid var(--line);font-size:14px}
.awards li span:first-child{color:var(--muted)}

/* =========================================================
   FOOTER
   ========================================================= */
.footer{padding:clamp(40px,8vh,90px) var(--gutter) 28px}
.footer__marquee{margin-top:0}
.footer__bottom{
  display:flex;flex-wrap:wrap;gap:16px 32px;justify-content:space-between;align-items:center;
  margin-top:clamp(28px,6vh,64px);color:var(--muted);
}
.footer__mail{display:inline-block;color:var(--fg);font-size:13px;letter-spacing:0;transition:color .35s ease,transform .5s var(--ease),letter-spacing .5s var(--ease)}
.footer__mail:hover{color:var(--accent);transform:translateY(-2px);letter-spacing:.08em}
.footer__btt{color:var(--muted);transition:color .35s ease}
.footer__btt:hover{color:var(--accent)}

/* =========================================================
   PROJECT DETAIL OVERLAY
   ========================================================= */
.detail{
  position:fixed;inset:0;z-index:190;background:var(--bg);
  transform:translate3d(0,100%,0);
  transition:transform .8s var(--ease);
  display:flex;flex-direction:column;overflow:hidden;
}
.detail.is-open{transform:none}
.detail__bar{
  display:flex;justify-content:space-between;align-items:center;
  padding:20px var(--gutter);border-bottom:1px solid var(--line);color:var(--muted);
}
.detail__bar span:first-child{color:var(--accent)}
.detail__close{color:var(--fg)}
.detail__close:hover{color:var(--accent)}
.detail__body{
  flex:1;display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(20px,4vw,56px);
  padding:clamp(24px,6vh,64px) var(--gutter);overflow-y:auto;
}
.detail__visual{min-height:clamp(240px,46vh,560px);background:var(--paper-cool)}
.detail__info{display:flex;flex-direction:column;gap:20px;align-self:center}
.detail__title{font-size:clamp(30px,6vw,76px);font-weight:500;letter-spacing:-.03em;line-height:1}
.detail__meta{display:flex;gap:20px;color:var(--muted)}
.detail__text{color:var(--muted);max-width:56ch}
.detail__link{align-self:flex-start;border-bottom:1px solid var(--line-strong);padding-bottom:3px}
.detail__link:hover{color:var(--accent);border-color:var(--accent)}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width:1000px){
  .header__nav{display:none}
  .header__menu{display:block}
  .header{grid-template-columns:1fr auto}
  .header__meta{gap:14px}
  .header__clock{display:none}
  .about{grid-template-columns:minmax(0,.5fr) minmax(0,1.5fr)}
  .about__portrait{height:100%;aspect-ratio:auto}
  .row{grid-template-columns:44px 1fr 60px 24px}
  .row__cat{display:none}
  .detail__body{grid-template-columns:1fr}
  .detail__visual{min-height:36vh}
  .idea-lead{gap:10px}
  .chapter--idea{--idea-cols:2}
  .idea{padding:0}
  .idea__head{margin-bottom:6px}
  .visual__meta,.visual__corner{font-size:7px}
  .visual__meta{left:10px;top:10px}
  .visual__corner{right:10px;bottom:10px}
  .visual-title{top:26%;bottom:12%}
  .visual-title__kicker,.visual-title__sub{font-size:6px}
  .visual-title strong{font-size:clamp(24px,4.2vw,38px)}
  .visual--01::after{width:min(46%,140px)}
  .visual-refs{inset:26% 10% 17%}
  .visual-motivation{width:min(38%,100px)}
  .visual-motivation strong{font-size:13px}
  .visual-pathway{top:55%}
  .visual__route{top:31%;font-size:6px}
  .visual-stack{inset:24% 10% 17%;gap:4px}
  .visual-stack span{padding:4px}
  .visual-stack b{font-size:6px}
  .visual-stack em{font-size:7px}
  .visual-query{top:20%;bottom:14%}
  .visual-query i{width:6px;height:6px;box-shadow:0 0 0 3px rgba(255,255,255,.35)}
  .visual-query strong{width:min(39%,80px);font-size:13px}
  .idea__head{height:32px;padding:0 9px;margin:0}
  .idea__title{font-size:10px}
  .poster-number{font-size:clamp(60px,10vw,104px)}
  .poster-kicker{left:10px;top:38px;font-size:6px}
  .poster-headline{font-size:clamp(24px,3.6vw,34px)}
  .poster-note{left:10px;bottom:10px;font-size:6px}
  .poster-badge{right:10px;bottom:10px;max-width:38%;padding:3px 5px;font-size:6px}
}
@media (max-width:640px){
  .chapter{height:auto;min-height:100svh}
  .about{grid-template-columns:1fr}
  .about__portrait{height:clamp(120px,22vh,200px)}
  .chapter--idea{--idea-cols:1}
  .ideas{grid-auto-rows:auto}
  .idea__box{min-height:clamp(155px,28vh,210px)}
  .visual__meta,.visual__corner{font-size:8px}
  .visual__meta{left:13px;top:13px}
  .visual__corner{right:13px;bottom:13px}
  .visual-title{top:28%;bottom:13%}
  .visual-title__kicker,.visual-title__sub{font-size:7px}
  .visual-title strong{font-size:clamp(30px,9vw,46px)}
  .visual-motivation{width:min(38%,140px)}
  .visual-motivation strong{font-size:16px}
  .visual__route{top:30%;font-size:7px}
  .visual-stack{inset:24% 11% 18%;gap:6px}
  .visual-stack span{padding:7px}
  .visual-stack b{font-size:7px}
  .visual-stack em{font-size:8px}
  .visual-query{top:18%;bottom:14%}
  .visual-query i{width:7px;height:7px;box-shadow:0 0 0 4px rgba(255,255,255,.35)}
  .visual-query strong{width:min(39%,104px);font-size:15px}
  .idea__head{height:36px;padding:0 11px;margin:0}
  .idea__title{font-size:11px}
  .poster-number{font-size:clamp(72px,16vw,110px)}
  .poster-kicker{left:13px;top:43px;font-size:7px}
  .poster-headline{font-size:clamp(28px,7.5vw,40px)}
  .poster-note{left:13px;bottom:13px;font-size:7px}
  .poster-badge{right:13px;bottom:13px;max-width:38%;padding:4px 6px;font-size:7px}
  .chapter--idea .chapter__title{font-size:clamp(19px,5.4vw,28px)}
  .meta{grid-template-columns:1fr}
  .hero__stage{grid-template-columns:1fr}
  .hero__runtime{text-align:left}
  .row{padding:16px 0;gap:10px}
}

@media (max-height:780px){
  .chapter{padding-top:clamp(70px,9.5vh,96px);padding-bottom:clamp(14px,2.6vh,28px)}
  .chapter__index{padding-bottom:8px;margin-bottom:clamp(10px,2.2vh,20px)}
  .chapter__head{margin-bottom:clamp(10px,2.2vh,24px)}
  .chapter__title{font-size:clamp(28px,min(7.8vw,9.4vh),108px)}
  .hero__meta{margin-top:10px}
  .hero__stage{margin-top:12px}
  .about__body{gap:7px}
  .meta{padding-top:8px;gap:7px 24px}
  .awards li{padding:5px 0}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
}

/* ---------- progressive enhancement guards ---------- */
html.no-js .preloader,html.no-js .curtain,html.no-js .cursor,html.no-js .cursor-dot{display:none}
html.no-js [data-reveal],html.no-js [data-mask] .line>span{opacity:1;transform:none}
html.no-js .parallax{transform:none}



















/* ---------- scrollbar-width compensation while the body is locked ----------
   The content sits in a position:fixed shell, so reducing the body width has
   no effect on it. Reserve the scrollbar gutter on the shell itself instead. */
.scroll-wrap{padding-right:var(--sbw,0px)}
.header{padding-right:calc(var(--gutter) + var(--sbw,0px))}

/* =========================================================
   IDEA POSTERS — FINAL MINIMAL PASS
   Clear title first, one large word + one simple graphic.
   ========================================================= */
.chapter--idea{
  --idea-ink:#3d3934;
  --idea-soft:#7b756d;
  --idea-accent:#b85a3d;
}
.chapter--idea .idea{
  padding:clamp(10px,1.1vw,16px);
  border:1px solid var(--line);
  background:transparent;
}
.chapter--idea .idea:hover{
  border-color:rgba(61,57,52,.34);
  background:transparent;
}
.chapter--idea .idea__head{
  position:relative;left:auto;right:auto;top:auto;z-index:5;
  display:flex;justify-content:space-between;align-items:baseline;gap:12px;
  height:auto;padding:0 0 clamp(8px,1.1vh,12px);
  margin:0 0 clamp(9px,1.2vh,13px);
  border-bottom:1px solid rgba(61,57,52,.16);
  background:none;-webkit-backdrop-filter:none;backdrop-filter:none;
}
.chapter--idea .idea__num{order:2;flex:none;font-size:clamp(10px,1vw,12px);color:var(--idea-accent)}
.chapter--idea .idea__title{
  order:1;min-width:0;font-size:clamp(22px,2vw,28px);font-weight:600;
  line-height:1.08;letter-spacing:-.04em;white-space:normal;
  overflow:visible;text-overflow:clip;color:var(--idea-ink);
}
.chapter--idea .idea__head::after{content:none}

.chapter--idea .idea__box{position:relative;inset:auto;flex:1 1 auto;min-height:0;background:#ece8df}
.chapter--idea .idea__visual{background:#ece8df;color:#17171b}
.chapter--idea .idea__visual::before,
.chapter--idea .idea__visual::after{content:none}
.chapter--idea .poster-kicker,
.chapter--idea .poster-number,
.chapter--idea .poster-note,
.chapter--idea .poster-badge{display:none}
.chapter--idea .poster-svg{opacity:1;transform:none}
.chapter--idea .idea:hover .poster-svg{transform:scale(1.018)}
.chapter--idea .poster-headline{
  position:absolute;inset:0;z-index:2;display:block;
  max-width:none;color:#17171b;font-weight:600;
  line-height:normal;letter-spacing:-.09em;text-transform:uppercase;
  transition:transform .7s var(--ease);
}
.chapter--idea .poster-headline span,
.chapter--idea .poster-headline strong{display:block;white-space:normal}
.chapter--idea .poster-headline span{
  color:var(--idea-soft);font-weight:500;
}
.chapter--idea .poster-headline strong{color:var(--idea-ink);font-weight:600}
.chapter--idea .idea:hover .poster-headline{transform:translateY(-3px)}

/* One shared editorial template: label top-right, oversized word bottom-left */
.chapter--idea .visual--01 .poster-headline,
.chapter--idea .visual--02 .poster-headline,
.chapter--idea .visual--03 .poster-headline,
.chapter--idea .visual--04 .poster-headline,
.chapter--idea .visual--05 .poster-headline,
.chapter--idea .visual--06 .poster-headline{
  inset:0;text-align:left;
}
.chapter--idea .visual--01 .poster-headline span,
.chapter--idea .visual--02 .poster-headline span,
.chapter--idea .visual--03 .poster-headline span,
.chapter--idea .visual--04 .poster-headline span,
.chapter--idea .visual--05 .poster-headline span,
.chapter--idea .visual--06 .poster-headline span{
  position:absolute;right:7%;top:12%;
  writing-mode:horizontal-tb;transform:none;margin:0;text-align:right;
  font-family:var(--font-mono);
  font-size:clamp(10px,1.1vw,13px);font-weight:500;
  line-height:1;letter-spacing:.28em;color:var(--idea-soft);
}
.chapter--idea .visual--01 .poster-headline span::before,
.chapter--idea .visual--02 .poster-headline span::before,
.chapter--idea .visual--03 .poster-headline span::before,
.chapter--idea .visual--04 .poster-headline span::before,
.chapter--idea .visual--05 .poster-headline span::before,
.chapter--idea .visual--06 .poster-headline span::before{
  content:"/ ";color:var(--idea-accent);
}
.chapter--idea .visual--01 .poster-headline strong,
.chapter--idea .visual--02 .poster-headline strong,
.chapter--idea .visual--03 .poster-headline strong,
.chapter--idea .visual--04 .poster-headline strong,
.chapter--idea .visual--05 .poster-headline strong,
.chapter--idea .visual--06 .poster-headline strong{
  position:absolute;left:6%;right:-4%;bottom:6%;
  display:block;margin:0;color:var(--idea-ink);
  font-family:var(--font-sans);font-size:clamp(82px,9vw,124px);
  font-weight:600;line-height:.58;letter-spacing:-.125em;white-space:nowrap;
  text-decoration:none;-webkit-text-stroke:0;transform:none;
  transition:transform .7s var(--ease);
}
.chapter--idea .idea:hover .visual--01 .poster-headline strong,
.chapter--idea .idea:hover .visual--02 .poster-headline strong,
.chapter--idea .idea:hover .visual--03 .poster-headline strong,
.chapter--idea .idea:hover .visual--04 .poster-headline strong,
.chapter--idea .idea:hover .visual--05 .poster-headline strong,
.chapter--idea .idea:hover .visual--06 .poster-headline strong{
  transform:translateX(1.4%);
}
.chapter--idea .visual--01 .poster-headline strong::first-letter,
.chapter--idea .visual--02 .poster-headline strong::first-letter,
.chapter--idea .visual--03 .poster-headline strong::first-letter,
.chapter--idea .visual--04 .poster-headline strong::first-letter,
.chapter--idea .visual--05 .poster-headline strong::first-letter,
.chapter--idea .visual--06 .poster-headline strong::first-letter{
  color:var(--idea-accent);font-weight:600;
}
.chapter--idea .visual--01 .poster-headline strong::after,
.chapter--idea .visual--02 .poster-headline strong::after,
.chapter--idea .visual--03 .poster-headline strong::after,
.chapter--idea .visual--04 .poster-headline strong::after,
.chapter--idea .visual--05 .poster-headline strong::after,
.chapter--idea .visual--06 .poster-headline strong::after{
  content:none;
}

@media (max-width:1000px){
  .chapter--idea .idea{padding:10px}
  .chapter--idea .idea__title{font-size:clamp(20px,2.4vw,24px)}
  .chapter--idea .poster-headline{font-size:clamp(34px,5.6vw,50px)}
}
@media (max-width:640px){
  .chapter--idea .idea{padding:11px}
  .chapter--idea .idea__box{min-height:clamp(155px,28vh,210px)}
  .chapter--idea .idea__title{font-size:clamp(20px,5.3vw,25px)}
  .chapter--idea .poster-headline{font-size:clamp(38px,11vw,54px)}
}

/* ---------------------------------------------------------
   TYPE REVEAL — lines rise from below when a card enters
   --------------------------------------------------------- */
html.js .chapter--idea .idea__head{overflow:hidden}
html.js .chapter--idea .idea__num,
html.js .chapter--idea .idea__title{
  opacity:0;transform:translateY(130%);
  transition:transform .88s var(--ease),opacity .5s ease;
}
html.js .chapter--idea .idea.is-in .idea__num,
html.js .chapter--idea .idea.is-in .idea__title{opacity:1;transform:none}
html.js .chapter--idea .idea.is-in .idea__num{transition-delay:.08s}

html.js .chapter--idea .poster-headline{overflow:hidden}
html.js .chapter--idea .poster-headline span,
html.js .chapter--idea .poster-headline strong{
  opacity:0;
  transition:transform .92s var(--ease),opacity .48s ease;
}
html.js .chapter--idea .poster-headline span{transform:translateY(900%)}
html.js .chapter--idea .poster-headline strong{transform:translateY(135%)}
html.js .chapter--idea .idea.is-in .poster-headline span,
html.js .chapter--idea .idea.is-in .poster-headline strong{
  opacity:1;transform:none;
}

/* Project rows and footer text enter as staggered lines */
html.js .rows .row{opacity:0}
html.js .rows .row.is-in{animation:rowTextIn .85s var(--ease) both}
html.js .rows .row:nth-child(2).is-in{animation-delay:.055s}
html.js .rows .row:nth-child(3).is-in{animation-delay:.11s}
html.js .rows .row:nth-child(4).is-in{animation-delay:.165s}
html.js .rows .row:nth-child(5).is-in{animation-delay:.22s}
html.js .rows .row:nth-child(6).is-in{animation-delay:.275s}
@keyframes rowTextIn{
  from{opacity:0;transform:translateY(34px)}
  to{opacity:1;transform:none}
}

html.js .footer__bottom>*{opacity:0}
html.js .footer__bottom>*.is-in{animation:footerTextIn .72s var(--ease) both}
html.js .footer__bottom>*:nth-child(2).is-in{animation-delay:.08s}
html.js .footer__bottom>*:nth-child(3).is-in{animation-delay:.16s}
@keyframes footerTextIn{
  from{opacity:0;transform:translateY(18px)}
  to{opacity:1;transform:none}
}

html.js .meta>div,
html.js .awards li{opacity:0;transform:translateY(18px)}
html.js .meta.is-in>div,
html.js .awards.is-in li{animation:listTextIn .72s var(--ease) both}
html.js .meta.is-in>div:nth-child(2),
html.js .awards.is-in li:nth-child(2){animation-delay:.07s}
html.js .meta.is-in>div:nth-child(3),
html.js .awards.is-in li:nth-child(3){animation-delay:.14s}
html.js .meta.is-in>div:nth-child(4){animation-delay:.21s}
@keyframes listTextIn{
  from{opacity:0;transform:translateY(18px)}
  to{opacity:1;transform:none}
}

/* ---------------------------------------------------------
   VARIED TYPE MOTION — each chapter gets its own reveal
   --------------------------------------------------------- */
html.js .hero__title .line>span{
  transform:none;letter-spacing:inherit;
}
html.js .hero__char{
  display:inline-block;
  opacity:0;transform:translateY(115%) rotate(4deg);
  transition:opacity .45s ease,transform .88s var(--ease);
  transition-delay:calc(var(--i) * 28ms);
}
html.js .hero__title.is-in .hero__char{opacity:1;transform:none}

html.js .hero__meta p{
  opacity:0;transform:translateX(-24px);
  clip-path:inset(0 100% 0 0);
  transition:opacity .7s ease var(--d,0s),transform .8s var(--ease) var(--d,0s),clip-path .9s var(--ease) var(--d,0s);
}
html.js .hero__meta p.is-in{opacity:1;transform:none;clip-path:inset(0 0 0 0)}

html.js .chapter__index>span{
  display:inline-block;opacity:0;transform:translateX(-22px);
  transition:opacity .6s ease,transform .75s var(--ease);
}
html.js .chapter__index>span:last-child{transform:translateX(22px)}
html.js .chapter__index>span.is-in{opacity:1;transform:none}

html.js .about__body [data-reveal]{
  transform:translateX(-34px) skewY(1.2deg);
}
html.js .about__body [data-reveal].is-in{transform:none}

@keyframes rowTextIn{
  from{opacity:0;clip-path:inset(0 100% 0 0)}
  to{opacity:1;clip-path:inset(0 0 0 0)}
}

html.js .footer__bottom>*:nth-child(1).is-in{animation-name:footerTextLeft}
html.js .footer__bottom>*:nth-child(2).is-in{animation-name:footerTextUp}
html.js .footer__bottom>*:nth-child(3).is-in{animation-name:footerTextRight}
@keyframes footerTextLeft{
  from{opacity:0;transform:translateX(-20px)}
  to{opacity:1;transform:none}
}
@keyframes footerTextUp{
  from{opacity:0;transform:translateY(18px)}
  to{opacity:1;transform:none}
}
@keyframes footerTextRight{
  from{opacity:0;transform:translateX(20px)}
  to{opacity:1;transform:none}
}
html.js .chapter--idea .idea.is-in .poster-headline span{transition-delay:.04s}
html.js .chapter--idea .idea.is-in .poster-headline strong{transition-delay:.16s}