/* ==========================================================================
   PAPERTOV — main stylesheet
   Layout: an exhibition on paper. Finished websites hang in a 3D space above
   a typographic wall label; everything after reads like a gallery catalogue
   on a 12-column grid with wide margins. One accent (Klein blue) marks the
   moments something is being made: drafting lines, focus, the live state.
   ========================================================================== */

:root{
  color-scheme: light;

  /* color */
  --paper:   #F4F4F1;   /* page ground */
  --paper-0: rgba(244,244,241,0); /* the same paper, fully transparent (for the landing mist) */
  --sheet:   #FFFFFF;   /* frames, cards, canvases */
  --ink:     #16171B;   /* text, primary surfaces */
  --graphite:#5B5D64;   /* secondary text */
  --mist:    #9B9DA3;   /* tertiary text, unlit words */
  --rule:    #DCDCD6;   /* hairlines */
  --klein:   #2340D8;   /* accent: drafting, focus, live */
  --void:    #0B0C0E;   /* hero space */
  --on-void: #EDEDE8;   /* text on the hero space */
  --void-mute:#94969D;  /* secondary text on the hero space */
  --night:   #16171B;   /* contact + footer ground */
  --night-rule:#33343B;
  --on-night:#F4F4F1;
  --on-night-mute:#A2A4AB;

  /* type */
  --f-display: "Hahmlet", "Noto Serif KR", "Nanum Myeongjo", "AppleMyungjo", serif;
  --f-text:    "IBM Plex Sans KR", "Pretendard", "Apple SD Gothic Neo", "Malgun Gothic", system-ui, sans-serif;
  --f-mark:    "Archivo", "IBM Plex Sans KR", "Helvetica Neue", Arial, sans-serif;

  --fs-hero:  clamp(1.875rem, 1.1rem + 2.2vw, 3rem);
  --fs-h2:    clamp(1.75rem, 1.25rem + 1.55vw, 2.625rem);
  --fs-h3:    clamp(1.625rem, 1.15rem + 1.5vw, 2.5rem);
  --fs-lead:  clamp(1.0625rem, 1rem + .22vw, 1.1875rem);
  --fs-body:  1rem;
  --fs-small: .875rem;
  --fs-label: .75rem;

  /* space */
  --gutter: clamp(20px, 4.2vw, 64px);
  --maxw: 1320px;
  --sec: clamp(96px, 11vw, 176px);
  --header-h: 72px;
  --film: 300vh;        /* hero scroll length: outside → through the screen → inside */

  /* motion */
  --ease: cubic-bezier(.22,.61,.36,1);
  --ease-out: cubic-bezier(.16,1,.3,1);
}

/* ------------------------------------------------------------------ base */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 8px);background:var(--void)}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--f-text);font-size:var(--fs-body);line-height:1.75;
  word-break:keep-all;overflow-wrap:break-word;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}
img,svg{display:block;max-width:100%}
a{color:inherit}
button{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--klein);outline-offset:3px;border-radius:4px}
::selection{background:var(--ink);color:var(--paper)}
.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.skip{position:fixed;left:16px;top:-60px;z-index:100;background:var(--ink);color:var(--paper);padding:10px 16px;border-radius:8px;text-decoration:none;font-size:.875rem;transition:top .2s}
.skip:focus{top:calc(12px + env(safe-area-inset-top,0px))}
.wrap{width:100%;max-width:calc(var(--maxw) + var(--gutter) * 2);margin-inline:auto;padding-inline:var(--gutter)}
.label{font-family:var(--f-mark);font-size:var(--fs-label);font-weight:500;letter-spacing:.16em;text-transform:uppercase;font-stretch:108%}

/* ------------------------------------------------------------------ buttons */
.btn{--h:52px;display:inline-flex;align-items:center;justify-content:center;gap:10px;height:var(--h);padding:0 26px;border-radius:999px;
  border:1px solid transparent;font-family:var(--f-text);font-size:.9375rem;font-weight:500;line-height:1;letter-spacing:-.005em;
  text-decoration:none;white-space:nowrap;cursor:pointer;
  transition:background-color .3s var(--ease),color .3s var(--ease),border-color .3s var(--ease),transform .3s var(--ease)}
.btn:active{transform:scale(.98)}
.btn--ink{background:var(--ink);color:var(--paper)}
.btn--ink:hover{background:var(--klein)}
.btn--line{background:transparent;color:var(--ink);border-color:#C9C9C2}
.btn--line:hover{border-color:var(--ink)}
.btn--paper{background:var(--paper);color:var(--ink)}
.btn--paper:hover{background:var(--klein);color:#fff}
.btn--line-dark{background:transparent;color:var(--on-night);border-color:var(--night-rule)}
.btn--line-dark:hover{border-color:var(--on-night)}
.btn--sm{--h:40px;padding:0 18px;font-size:.875rem}
.btn--lg{--h:60px;padding:0 34px;font-size:1rem}
.btn .ext{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:1.6}
.text-link{background:none;border:0;padding:4px 0;font-size:.9375rem;color:var(--graphite);text-decoration:underline;text-underline-offset:4px;text-decoration-color:#C9C9C2;cursor:pointer;transition:color .2s,text-decoration-color .2s}
.text-link:hover{color:var(--ink);text-decoration-color:var(--ink)}
.icon-btn{display:inline-grid;place-items:center;width:40px;height:40px;border-radius:50%;border:1px solid #C9C9C2;background:transparent;cursor:pointer;transition:border-color .25s,background-color .25s}
.icon-btn:hover{border-color:var(--ink)}
.icon-btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.icon-btn--lg{width:48px;height:48px}

/* ------------------------------------------------------------------ chips */
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{height:38px;padding:0 16px;border-radius:999px;border:1px solid #CFCFC8;background:transparent;font-size:.875rem;font-weight:500;color:var(--graphite);
  cursor:pointer;transition:background-color .25s var(--ease),border-color .25s,color .25s}
.chip:hover{border-color:var(--ink);color:var(--ink)}
.chip[aria-pressed="true"]{background:var(--ink);border-color:var(--ink);color:var(--paper)}
.chips--dark .chip{border-color:var(--night-rule);color:var(--on-night-mute)}
.chips--dark .chip:hover{border-color:var(--on-night);color:var(--on-night)}
.chips--dark .chip[aria-pressed="true"]{background:var(--on-night);border-color:var(--on-night);color:var(--ink)}

/* ------------------------------------------------------------------ header */
.site-header{position:fixed;inset:0 0 auto;z-index:50;padding-top:env(safe-area-inset-top,0px);
  transition:background-color .35s var(--ease),box-shadow .35s var(--ease),transform .5s var(--ease-out)}
.site-header.is-solid{background:rgba(244,244,241,.9);-webkit-backdrop-filter:saturate(150%) blur(14px);backdrop-filter:saturate(150%) blur(14px);box-shadow:0 1px 0 var(--rule)}
.site-header.is-hidden{transform:translateY(-100%)}
.site-header__inner{height:var(--header-h);max-width:calc(var(--maxw) + var(--gutter) * 2);margin:0 auto;padding-inline:var(--gutter);display:flex;align-items:center;gap:36px}
.wordmark{font-family:var(--f-mark);font-stretch:122%;font-weight:620;font-size:1.0625rem;letter-spacing:.07em;text-decoration:none;color:var(--ink)}
.gnb{margin-left:auto;display:flex;gap:30px}
.gnb a{position:relative;font-size:.9375rem;color:var(--graphite);text-decoration:none;padding:6px 0;transition:color .2s}
.gnb a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--ink);transform:scaleX(0);transform-origin:right;transition:transform .45s var(--ease-out)}
.gnb a:hover{color:var(--ink)}
.gnb a:hover::after,.gnb a.is-current::after{transform:scaleX(1);transform-origin:left}
.gnb a.is-current{color:var(--ink)}
/* over the dark hero */
.site-header.on-dark .wordmark{color:var(--on-void)}
.site-header.on-dark .gnb a{color:#A3A5AC}
.site-header.on-dark .gnb a:hover,.site-header.on-dark .gnb a.is-current{color:var(--on-void)}
.site-header.on-dark .gnb a::after{background:var(--on-void)}
.site-header.on-dark .header-cta{background:var(--on-void);color:var(--ink)}
.site-header.on-dark .header-cta:hover{background:var(--klein);color:#fff}
.site-header.on-dark .menu-btn__lines i{background:var(--on-void)}
.site-header.on-dark.is-solid{background:rgba(11,12,14,.55);box-shadow:0 1px 0 rgba(255,255,255,.07)}
.menu-btn{display:none;margin-left:auto;width:44px;height:44px;border:0;background:none;cursor:pointer;place-items:center}
.menu-btn__lines{display:grid;gap:7px;width:22px}
.menu-btn__lines i{display:block;height:1.5px;background:var(--ink);transition:transform .4s var(--ease-out)}
.menu-btn[aria-expanded="true"] .menu-btn__lines i:first-child{transform:translateY(4.25px) rotate(45deg)}
.menu-btn[aria-expanded="true"] .menu-btn__lines i:last-child{transform:translateY(-4.25px) rotate(-45deg)}

.mnav{position:fixed;inset:0;z-index:49;background:var(--paper);padding:calc(var(--header-h) + 40px + env(safe-area-inset-top,0px)) var(--gutter) 40px;
  opacity:0;visibility:hidden;transition:opacity .35s var(--ease),visibility 0s .35s}
.mnav.is-open{opacity:1;visibility:visible;transition:opacity .35s var(--ease)}
.mnav__links{display:grid;gap:4px}
.mnav__links a{font-family:var(--f-display);font-size:2rem;font-weight:500;letter-spacing:-.02em;text-decoration:none;padding:10px 0;border-bottom:1px solid var(--rule)}

/* ------------------------------------------------------------------ frames (browser + phone mockups) */
.frame{position:relative;display:block;background:var(--sheet);border-radius:var(--r,12px);overflow:hidden;
  box-shadow:0 0 0 1px rgba(22,23,27,.06),0 22px 44px -22px rgba(22,23,27,.32),0 44px 90px -50px rgba(22,23,27,.28)}
.frame__bar{display:flex;align-items:center;gap:calc(var(--bar,30px) * .22);height:var(--bar,30px);padding:0 calc(var(--bar,30px) * .45);background:#FAFAF8;border-bottom:1px solid #ECECE7}
.frame__bar i{flex:none;width:calc(var(--bar,30px) * .24);height:calc(var(--bar,30px) * .24);border-radius:50%;background:#DCDCD5}
.frame__url{flex:0 1 52%;margin:0 auto;transform:translateX(calc(var(--bar,30px) * -.5));height:calc(var(--bar,30px) * .6);padding:0 1em;border-radius:99px;background:#F0F0EB;
  font-family:var(--f-mark);font-size:calc(var(--bar,30px) * .34);font-weight:500;letter-spacing:.02em;color:#8D8F95;
  display:flex;align-items:center;justify-content:center;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}
.screen{container:screen / inline-size;position:relative;display:block;aspect-ratio:16 / 10;overflow:hidden;background:#fff;max-width:100%}
.screen.is-phone{aspect-ratio:9 / 19.5}
.screen__inner{display:block;transform:translate3d(0,var(--pan,0px),0)}
.screen img.shot{display:block;width:100%;height:auto}
.pv-empty{display:grid;place-items:center;height:62.5cqw;font-family:var(--f-display);font-size:4cqw;color:var(--mist)}

.phone{position:relative;display:block;padding:var(--pb,8px);border-radius:var(--pr,34px);background:#1D1E22;
  box-shadow:0 0 0 1px rgba(0,0,0,.4),0 30px 60px -28px rgba(22,23,27,.5),0 60px 110px -60px rgba(22,23,27,.4)}
.phone .screen{border-radius:calc(var(--pr,34px) - var(--pb,8px))}
.phone__island{position:absolute;z-index:2;top:calc(var(--pb,8px) * .28);left:50%;width:24%;height:calc(var(--pb,8px) * .44);transform:translateX(-50%);border-radius:99px;background:#3A3B40}

/* ------------------------------------------------------------------ 01 hero · website sphere */
.hero{position:relative;background:var(--void)}
.hero__stage{position:relative;height:100vh;height:100svh;min-height:540px;overflow:hidden;background:var(--void);color:var(--on-void);isolation:isolate}
.film .hero{height:calc(var(--film) + 200vh);height:calc(var(--film) + 200svh)}
.film .hero__stage{position:sticky;top:0;min-height:0}
/* deep space: almost black, a faint lift around the sphere so it floats in a room-less space */
.hero__space{position:absolute;inset:0;z-index:0;pointer-events:none;
  background:radial-gradient(circle at 50% 50%,#17181C 0%,#121316 24%,#0D0E10 50%,#08090A 100%)}
.hero__space::after{content:"";position:absolute;inset:0;opacity:.08;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
.hero__canvas{position:absolute;inset:0;z-index:1}
.hero__canvas canvas{display:block;width:100%;height:100%;touch-action:pan-y;outline:none;-webkit-tap-highlight-color:transparent}
.hero__canvas.is-dragging canvas{cursor:grabbing}
.hero__vignette{position:absolute;inset:0;z-index:1;pointer-events:none;background:radial-gradient(ellipse 85% 80% at 50% 50%,rgba(7,8,9,0) 55%,rgba(7,8,9,.55) 100%)}

/* quiet words around the sphere: bottom-left statement, bottom-centre cue, bottom-right count */
.hero__bottom{position:absolute;left:0;right:0;bottom:clamp(28px,5.5vh,60px);z-index:2;display:flex;align-items:flex-end;justify-content:space-between;gap:40px;pointer-events:none}
.hero__intro{max-width:440px;pointer-events:auto}
.hero__label{color:var(--void-mute)}
.hero__title{margin-top:12px;font-family:var(--f-display);font-weight:500;font-size:clamp(1.375rem,.9rem + 1.05vw,2rem);line-height:1.32;letter-spacing:-.02em;color:var(--on-void);text-wrap:balance}
.hero__lead{margin-top:12px;max-width:27em;color:var(--void-mute);font-size:.875rem;line-height:1.7}
.hero__actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.hero__meta{display:grid;justify-items:end;gap:8px;text-align:right;color:var(--void-mute);max-width:300px;pointer-events:auto}
.hero__count{color:#BFC1C7}
.hero__sep{margin:0 .35em;color:#55575D}
.hero__hover{font-size:.8125rem;min-height:1.6em}
.hero__hover b{font-weight:500;color:var(--on-void)}
.hero__hover span{color:#6E7077;margin-right:.5em;font-family:var(--f-mark);letter-spacing:.08em}

/* Scroll to enter: a single line of light drifting down, slowly */
.hero__cue{--cue:44px;position:absolute;left:50%;bottom:0;transform:translateX(-50%);display:grid;justify-items:center;gap:12px;padding:6px 12px;border:0;background:none;
  color:var(--void-mute);font:inherit;cursor:pointer;pointer-events:auto;transition:color .3s var(--ease)}
.hero__cue:hover{color:var(--on-void)}
.hero__cue-line{position:relative;display:block;width:1px;height:var(--cue);background:rgba(237,237,232,.12);overflow:hidden}
.hero__cue-line i{position:absolute;left:0;top:0;width:1px;height:18px;background:linear-gradient(180deg,rgba(237,237,232,0),rgba(237,237,232,.85));animation:cueDrop 3.6s cubic-bezier(.6,0,.3,1) infinite}
@keyframes cueDrop{0%{transform:translateY(-18px);opacity:0}20%{opacity:1}72%{transform:translateY(var(--cue));opacity:.8}100%{transform:translateY(var(--cue));opacity:0}}
html:not(.film) .hero__cue{display:none}

/* first visit: the words follow quietly while the screens switch on */
.film .hero__intro>*,.film .hero__meta>*,.film .hero__cue>*{animation:heroIn 1.1s var(--ease-out) both}
.film .hero__label{animation-delay:.55s}
.film .hero__title{animation-delay:.68s}
.film .hero__lead{animation-delay:.82s}
.film .hero__actions{animation-delay:.95s}
.film .hero__meta>*{animation-delay:1.1s}
.film .hero__cue>*{animation-delay:1.3s}
@keyframes heroIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

/* inside the sphere: PROJECT 01 */
.hero__feature{position:absolute;inset:0;z-index:2;pointer-events:none;opacity:0;visibility:hidden}
.hero__feature.is-on{visibility:visible}
.hero__feature::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,9,10,0) 44%,rgba(8,9,10,.6) 60%,rgba(8,9,10,.78) 100%)}
.hero__feature.is-live .hero__feature-in{pointer-events:auto}
.hero__feature-in{position:absolute;left:58%;right:var(--gutter);top:50%;transform:translateY(-50%);max-width:420px}
.hero__fno{display:flex;gap:.5em;color:var(--void-mute)}
.hero__fcat{margin-top:6px;color:var(--on-void)}
.hero__ftitle{margin-top:22px;font-family:var(--f-display);font-weight:500;font-size:clamp(1.75rem,1.2rem + 1.4vw,2.5rem);line-height:1.2;letter-spacing:-.025em;color:var(--on-void);text-wrap:balance}
.hero__fsum{margin-top:16px;color:var(--void-mute);line-height:1.75}
.hero__factions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.btn--ghost{background:transparent;color:var(--on-void);border-color:rgba(237,237,232,.26)}
.btn--ghost:hover{border-color:var(--on-void)}

/* without WebGL: the screens gathered inside a circle, still */
.sphere-fallback{position:absolute;left:50%;top:48%;width:min(52vh,72vw);aspect-ratio:1;transform:translate(-50%,-50%);border-radius:50%;overflow:hidden;
  display:grid;grid-template-columns:repeat(4,1fr);gap:6px;opacity:.9;
  -webkit-mask:radial-gradient(circle,#000 58%,transparent 72%);mask:radial-gradient(circle,#000 58%,transparent 72%)}
.sphere-fallback img{width:100%;height:100%;object-fit:cover;object-position:top;filter:brightness(.8)}

/* ------------------------------------------------------------------ section heads */
.section-head{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:24px;align-items:end;margin-bottom:clamp(44px,6vw,88px)}
.section-title{grid-column:1 / span 6;font-family:var(--f-display);font-weight:500;font-size:var(--fs-h2);line-height:1.26;letter-spacing:-.025em;text-wrap:balance}
.section-desc{grid-column:7 / span 6;max-width:32em;color:var(--graphite);font-size:var(--fs-lead);line-height:1.7}

/* ------------------------------------------------------------------ 02 intro (the paper the camera lands on) */
.intro{position:relative;z-index:3;background:var(--paper);padding-block:clamp(80px,10vw,150px) var(--sec)}
/* over the hero's last screen: no edge, no shadow — the paper rises out of the floor light as a mist */
.film .intro{margin-top:-100vh;margin-top:-100svh;min-height:100vh;min-height:100svh;
  background:linear-gradient(180deg,var(--paper-0) 0,var(--paper) 46vh,var(--paper) 100%);
  padding-top:max(clamp(80px,10vw,150px),32vh)}
.intro__statement{max-width:23em;font-family:var(--f-display);font-weight:400;font-size:clamp(1.5rem, 1rem + 1.85vw, 2.625rem);line-height:1.5;letter-spacing:-.02em}
.js .intro__statement .w{color:#B9BABF;transition:color .5s var(--ease)}
.js .intro__statement .w.on{color:var(--ink)}
.intro__grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(24px,4vw,64px);margin-top:clamp(56px,7vw,112px);padding-top:28px;border-top:1px solid var(--rule)}
.principle h3{font-size:1.125rem;font-weight:600;line-height:1.5;letter-spacing:-.01em}
.principle p{margin-top:10px;color:var(--graphite);font-size:.9375rem;line-height:1.75}
.intro__facts{margin-top:clamp(40px,5vw,64px);color:var(--graphite);font-size:.9375rem}
.intro__facts strong{color:var(--ink);font-weight:600}

/* ------------------------------------------------------------------ 03–04 chapters */
.works{padding-block:var(--sec) 0;border-top:1px solid var(--rule)}
.chapter{padding-block:clamp(40px,6vw,104px) clamp(64px,8vw,136px)}
.chapter__head{display:flex;align-items:center;gap:18px;color:var(--graphite)}
.chapter__head .rule{flex:1;height:1px;background:var(--rule)}
.chapter__title{margin-top:20px;font-family:var(--f-display);font-weight:500;font-size:var(--fs-h3);line-height:1.18;letter-spacing:-.025em}
.chapter__sub{margin-top:8px;color:var(--graphite)}
.chapter__stage{position:relative;margin-top:clamp(32px,4vw,56px);padding-bottom:clamp(24px,5vw,72px);perspective:2200px;perspective-origin:50% 0}
.chapter__desktop{display:block;width:min(100%, 1060px);text-decoration:none;color:inherit;--bar:34px;--r:14px;
  transform-origin:50% 0;transform:rotateX(calc((1 - var(--k,1)) * 16deg)) translateY(calc((1 - var(--k,1)) * 36px)) scale(calc(.94 + var(--k,1) * .06))}
.chapter__phone{position:absolute;right:0;bottom:0;width:clamp(132px, 19%, 236px);--pb:7px;--pr:30px;
  transform:translateY(calc((.5 - var(--q,.5)) * 120px))}
.chapter:nth-child(even) .chapter__desktop{margin-left:auto}
.chapter:nth-child(even) .chapter__phone{right:auto;left:0}
.chapter__body{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:24px;margin-top:clamp(40px,5vw,80px)}
.chapter__summary{grid-column:1 / span 4;font-size:var(--fs-lead);line-height:1.75}
.chapter__side{grid-column:6 / span 7;min-width:0}
.overview{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 36px}
.overview dt{font-size:.8125rem;color:var(--mist);letter-spacing:.01em}
.overview dd{margin-top:8px;font-size:.9375rem;line-height:1.7;min-width:0}
.overview li{position:relative;padding-left:14px}
.overview li+li{margin-top:4px}
.overview li::before{content:"";position:absolute;left:0;top:.8em;width:6px;height:1px;background:var(--ink)}
.chapter__actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px 18px;margin-top:36px}
.chip-swatches{display:flex;gap:6px;margin-top:12px}
.chip-swatches i{width:22px;height:22px;border-radius:50%;background:var(--c);box-shadow:inset 0 0 0 1px rgba(22,23,27,.12)}

/* ------------------------------------------------------------------ index */
.index{position:relative;padding-block:clamp(48px,6vw,96px) var(--sec)}
.index__head{display:flex;flex-wrap:wrap;align-items:end;justify-content:space-between;gap:24px 40px;margin-bottom:36px}
.index__head .section-title{grid-column:auto}
.index__list{border-top:1px solid var(--ink);counter-reset:none}
.index__item[hidden]{display:none}
.index__row{display:grid;grid-template-columns:56px minmax(0,1fr) minmax(0,190px) 56px 48px;align-items:center;gap:20px;width:100%;padding:22px 0;
  border:0;border-bottom:1px solid var(--rule);background:none;text-align:left;cursor:pointer;color:inherit}
.row__no{font-family:var(--f-mark);font-size:.8125rem;color:var(--mist);font-variant-numeric:tabular-nums;letter-spacing:.06em}
.row__title{font-family:var(--f-display);font-weight:500;font-size:clamp(1.25rem,1rem + .8vw,1.75rem);letter-spacing:-.02em;line-height:1.3;transition:transform .55s var(--ease-out);min-width:0}
.row__cat{font-size:.875rem;color:var(--graphite)}
.row__year{font-family:var(--f-mark);font-size:.8125rem;color:var(--mist);font-variant-numeric:tabular-nums}
.row__go{justify-self:end;width:36px;height:36px;border-radius:50%;border:1px solid #CFCFC8;display:grid;place-items:center;transition:background-color .3s,border-color .3s,color .3s}
.row__go svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.index__row:hover .row__title,.index__row:focus-visible .row__title{transform:translateX(14px)}
.index__row:hover .row__go{background:var(--ink);border-color:var(--ink);color:var(--paper)}
.index__more{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px 32px;margin-top:48px}
.index__more p{color:var(--graphite);max-width:36em}
.float{position:fixed;left:0;top:0;z-index:40;width:clamp(280px,26vw,400px);pointer-events:none;opacity:0;transition:opacity .3s var(--ease);--bar:18px;--r:10px}
.float.is-on{opacity:1}
.float .frame{display:none}
.float .frame.is-on{display:block}

/* ------------------------------------------------------------------ 05 process */
.process{padding-block:var(--sec);background:var(--sheet);border-block:1px solid var(--rule)}
.process__body{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(32px,6vw,104px);align-items:start}
.build-wrap{grid-column:2;grid-row:1;position:sticky;top:calc(50vh - min(26vw, 290px));padding-bottom:24px}
.steps{grid-column:1;grid-row:1;position:relative;padding-left:56px}
.steps::before,.steps::after{content:"";position:absolute;left:12px;top:12px;bottom:12px;width:1px;background:var(--rule)}
.steps::after{background:var(--ink);transform:scaleY(var(--pf,0));transform-origin:top}
.step{position:relative;min-height:62vh;padding-block:16px 48px}
.step:last-child{min-height:44vh}
.step__no{position:absolute;left:-56px;top:20px;width:25px;height:25px;border-radius:50%;background:var(--sheet);border:1px solid var(--rule);display:grid;place-items:center;
  font-family:var(--f-mark);font-size:.6875rem;font-weight:600;font-variant-numeric:tabular-nums;color:var(--mist);transition:background-color .4s,border-color .4s,color .4s}
.step h3{font-family:var(--f-display);font-weight:500;font-size:clamp(1.5rem,1.1rem + 1.2vw,2.125rem);line-height:1.3;letter-spacing:-.02em}
.step p{margin-top:14px;max-width:28em;color:var(--graphite)}
.step__out{display:inline-flex;align-items:center;gap:8px;margin-top:20px;font-size:.8125rem;color:var(--ink);border:1px solid var(--rule);border-radius:99px;padding:6px 14px}
.step__out::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--klein)}
.js .step{opacity:.28;transition:opacity .5s var(--ease)}
.js .step.is-active,.js .step.is-done{opacity:1}
.js .step.is-done{opacity:.55}
.step.is-active .step__no,.step.is-done .step__no{background:var(--ink);border-color:var(--ink);color:var(--paper)}

/* the build canvas: one page being made across six steps */
.build{position:relative;aspect-ratio:16 / 11.4;max-width:100%}
.b-frame{position:absolute;left:50%;top:0;height:calc(100% - 44px);width:100%;transform:translateX(-50%);display:flex;flex-direction:column;background:var(--sheet);border-radius:14px;overflow:hidden;
  box-shadow:0 0 0 1px rgba(22,23,27,.08),0 30px 60px -32px rgba(22,23,27,.35);
  transition:width .9s var(--ease-out),border-radius .9s var(--ease-out)}
.b-bar{flex:none;display:flex;align-items:center;gap:6px;height:30px;padding:0 12px;background:#FAFAF8;border-bottom:1px solid #ECECE7}
.b-bar>i{width:7px;height:7px;border-radius:50%;background:#DCDCD5;flex:none}
.b-url{display:flex;align-items:center;gap:6px;margin:0 auto;transform:translateX(-14px);height:18px;padding:0 12px;border-radius:99px;background:#F0F0EB;font-family:var(--f-text);font-size:10.5px;color:#8D8F95;white-space:nowrap;overflow:hidden}
.b-lock{display:none;width:8px;height:8px;border:1.5px solid var(--klein);border-radius:2px;position:relative}
.b-canvas{position:relative;flex:1;overflow:hidden;background:#fff}
.b-caption{position:absolute;left:0;bottom:0;display:flex;align-items:center;gap:12px;font-size:.9375rem;font-weight:500}
.b-caption .label{color:var(--klein)}

.b-brief,.b-analysis,.b-page,.b-grid,.b-code,.b-qa{position:absolute;transition:opacity .6s var(--ease),transform .8s var(--ease-out),left .8s var(--ease-out),top .8s var(--ease-out),clip-path 1.1s var(--ease-out)}

.b-brief{left:50%;top:50%;width:min(54%,330px);transform:translate(-50%,-50%);background:#FBFBF7;border:1px solid #E6E6DF;border-radius:10px;padding:16px 18px 10px;box-shadow:0 14px 30px -18px rgba(22,23,27,.3)}
.b-brief__title{font-size:11px;font-weight:600;color:var(--klein);letter-spacing:.04em;margin-bottom:8px}
.b-brief li{display:flex;gap:10px;padding:7px 0;border-top:1px solid #ECECE6;font-size:12px;line-height:1.4;color:var(--ink)}
.b-brief li span{flex:none;width:30px;color:var(--mist)}

.b-analysis{left:47%;top:9%;width:47%;display:grid;gap:12px;opacity:0;transform:translateX(16px)}
.b-swatches{display:flex;gap:8px}
.b-swatches i{width:30px;height:30px;border-radius:50%;background:var(--c);box-shadow:inset 0 0 0 1px rgba(0,0,0,.1)}
.b-type{display:flex;align-items:baseline;gap:12px;padding:10px 12px;border:1px solid #ECECE6;border-radius:8px}
.b-aa{font-family:var(--f-display);font-size:28px;font-weight:400;line-height:1}
.b-type__meta{font-size:10.5px;color:var(--mist)}
.b-refs{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}
.b-refs i{aspect-ratio:4/3;border-radius:5px;background:linear-gradient(160deg,#E9E9E5,#CFCFCA)}
.b-refs i:nth-child(2){background:linear-gradient(160deg,#F2F2EF,#DADAD5)}
.b-refs i:nth-child(3){background:linear-gradient(160deg,#DADAD6,#ABABA6)}
.b-keys{display:flex;gap:6px;flex-wrap:wrap}
.b-keys span{font-size:10.5px;padding:3px 9px;border-radius:99px;border:1px solid var(--klein);color:var(--klein)}

.b-page{inset:0;padding:5% 6%;display:flex;flex-direction:column;gap:7%;opacity:0;clip-path:inset(0 100% 0 0)}
.b-page i{display:block}
.b-nav{display:flex;align-items:center;gap:6%;justify-content:flex-end}
.b-nav i{width:7%;height:5px;border-radius:3px;background:#D5D5D0}
.b-nav .b-logo{width:12%;height:9px;background:var(--ink);margin-right:auto;border-radius:2px}
.b-hero{display:grid;grid-template-columns:1fr 1fr;gap:7%;align-items:center;flex:1;min-height:0}
.b-hero__text{display:grid;gap:9px}
.b-t1{height:14px;width:92%;background:var(--ink);border-radius:2px}
.b-t2{height:14px;width:70%;background:var(--ink);border-radius:2px}
.b-t3{height:6px;width:80%;background:#CFCFCA;border-radius:2px;margin-top:6px}
.b-btn{width:38%;height:18px;border-radius:99px;background:var(--ink);margin-top:10px}
.b-hero__img{height:100%;min-height:60px;border-radius:4px;background:linear-gradient(100deg,rgba(255,255,255,0) 20%,rgba(255,255,255,.6) 42%,rgba(255,255,255,0) 64%),linear-gradient(180deg,#DCDCD8 0%,#C8C8C4 64%,#A4A4A0 64.4%,#B6B6B2 100%)}
.b-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:5%}
.b-cards i{height:34px;border-radius:4px;background:#EFEFEB}
.b-page--wire{clip-path:none}
.b-page--wire *{background:transparent!important;box-shadow:inset 0 0 0 1px rgba(35,64,216,.75)!important}
.b-page--wire .b-hero,.b-page--wire .b-hero__text,.b-page--wire .b-nav,.b-page--wire .b-cards{box-shadow:none!important}

.b-grid{inset:0 6%;display:grid;grid-template-columns:repeat(12,1fr);gap:1.6%;opacity:0;pointer-events:none}
.b-grid i{background:rgba(35,64,216,.07);border-inline:1px solid rgba(35,64,216,.16)}
.b-code{top:0;right:0;bottom:0;width:48%;background:#17181D;color:#C9CBD3;padding:14px 16px;opacity:0;transform:translateX(104%)}
.b-code pre{margin:0;font-family:"SFMono-Regular",ui-monospace,Menlo,Consolas,monospace;font-size:10px;line-height:1.65;white-space:pre;overflow:hidden}
.c-t{color:#8FA6FF}.c-a{color:#E6C07B}.c-s{color:#9BD3A9}.c-k{color:#E39BCB}

.b-qa{right:5%;bottom:7%;width:min(46%,250px);background:var(--sheet);border:1px solid #E6E6DF;border-radius:12px;padding:12px 16px;opacity:0;transform:translateY(14px);
  box-shadow:0 20px 40px -20px rgba(22,23,27,.35)}
.b-qa li{position:relative;display:flex;align-items:center;gap:9px;padding:6px 0;font-size:11.5px;border-top:1px solid #F0F0EA}
.b-qa li:first-child{border-top:0}
.b-qa li::before{content:"";flex:none;width:14px;height:14px;border-radius:50%;border:1px solid #D0D0CA;background:#fff;transition:background-color .3s,border-color .3s}
.b-qa li::after{content:"";position:absolute;left:4px;top:50%;width:6px;height:3px;border-left:1.5px solid #fff;border-bottom:1.5px solid #fff;transform:translateY(-70%) rotate(-45deg) scale(0);transition:transform .3s var(--ease-out)}

/* step states */
.build[data-step="2"] .b-brief{left:25%;top:30%;transform:translate(-50%,-50%) scale(.72)}
.build[data-step="2"] .b-analysis{opacity:1;transform:none}
.build:is([data-step="3"],[data-step="4"],[data-step="5"],[data-step="6"]) .b-brief{opacity:0;transform:translate(-50%,-56%) scale(.9)}
.build[data-step="3"] .b-page--wire{opacity:1}
.build:is([data-step="3"],[data-step="4"],[data-step="5"],[data-step="6"]) .b-page:not(.b-page--wire){opacity:1;clip-path:inset(0 0 0 0)}
.build[data-step="3"] .b-page:not(.b-page--wire){transition-delay:.35s}
.build[data-step="4"] .b-grid{opacity:1}
.build[data-step="4"] .b-code{opacity:1;transform:none}
.build[data-step="5"] .b-frame{width:38%;border-radius:26px}
.build[data-step="5"] .b-url{transform:none;padding:0 8px;font-size:9px}
.build[data-step="5"] .b-bar>i{display:none}
.build[data-step="5"] .b-page{padding:9% 9%;gap:5%}
.build[data-step="5"] .b-hero{grid-template-columns:1fr;gap:10%;align-content:start}
.build[data-step="5"] .b-hero__img{order:-1;height:auto;aspect-ratio:4/3.4}
.build[data-step="5"] .b-cards{grid-template-columns:1fr;gap:6px}
.build[data-step="5"] .b-cards i{height:16px}
.build[data-step="5"] .b-nav i:not(.b-logo){display:none}
.build[data-step="5"] .b-nav::after{content:"";width:14px;height:8px;border-block:1.5px solid var(--ink)}
.build[data-step="6"] .b-qa{opacity:1;transform:none}
.build[data-step="6"] .b-lock{display:block}
.build[data-step="6"] .b-url{color:var(--ink)}
.build[data-step="6"] .b-qa li::before{background:var(--klein);border-color:var(--klein)}
.build[data-step="6"] .b-qa li::after{transform:translateY(-70%) rotate(-45deg) scale(1)}
.build[data-step="6"] .b-qa li:nth-child(1)::before,.build[data-step="6"] .b-qa li:nth-child(1)::after{transition-delay:.25s}
.build[data-step="6"] .b-qa li:nth-child(2)::before,.build[data-step="6"] .b-qa li:nth-child(2)::after{transition-delay:.45s}
.build[data-step="6"] .b-qa li:nth-child(3)::before,.build[data-step="6"] .b-qa li:nth-child(3)::after{transition-delay:.65s}
.build[data-step="6"] .b-qa li:nth-child(4)::before,.build[data-step="6"] .b-qa li:nth-child(4)::after{transition-delay:.85s}
.build[data-step="6"] .b-qa li:nth-child(5)::before,.build[data-step="6"] .b-qa li:nth-child(5)::after{transition-delay:1.05s}

/* ------------------------------------------------------------------ 06 services */
.services{padding-block:var(--sec)}
.svc-list{border-top:1px solid var(--ink)}
.svc{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:24px;align-items:baseline;padding:28px 0;border-bottom:1px solid var(--rule)}
.svc h3{grid-column:1 / span 4;font-family:var(--f-display);font-weight:500;font-size:clamp(1.25rem,1rem + .7vw,1.625rem);line-height:1.35;letter-spacing:-.02em}
.svc__desc{grid-column:5 / span 5;color:var(--graphite)}
.svc__fit{grid-column:10 / span 3;justify-self:end;text-align:right;font-size:.8125rem;color:var(--graphite)}
.svc__fit span{display:block;color:var(--mist);font-size:.75rem}
.industries{display:flex;flex-wrap:wrap;align-items:center;gap:16px 28px;margin-top:56px}
.industries__title{font-weight:600;font-size:1.0625rem}

/* ------------------------------------------------------------------ 07 pricing */
.pricing{padding-block:var(--sec);border-top:1px solid var(--rule)}
.plans{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;align-items:stretch}
.plan{position:relative;display:flex;flex-direction:column;background:var(--sheet);border:1px solid var(--rule);border-radius:22px;padding:34px 30px 30px;min-width:0}
.plan--featured{background:var(--ink);border-color:var(--ink);color:var(--paper)}
.plan__top{display:flex;align-items:baseline;justify-content:space-between;gap:12px}
.plan__name{font-family:var(--f-mark);font-stretch:118%;font-weight:600;font-size:.875rem;letter-spacing:.14em}
.plan__badge{font-size:.75rem;font-weight:500;padding:4px 10px;border-radius:99px;background:var(--klein);color:#fff}
.plan__label{margin-top:8px;font-size:1.0625rem;font-weight:500}
.plan__price{display:flex;align-items:baseline;gap:8px;margin-top:26px}
.plan__num{font-family:var(--f-mark);font-weight:500;font-size:clamp(2.75rem,2rem + 2vw,3.75rem);line-height:1;letter-spacing:-.035em;font-variant-numeric:tabular-nums}
.plan__unit{font-size:.9375rem;color:var(--graphite)}
.plan__care{margin-top:10px;font-size:.875rem;color:var(--graphite)}
.plan__care b{font-weight:600;color:var(--ink,currentColor)}
.plan--featured .plan__care{color:var(--on-night-mute)}
.plan--featured .plan__care b{color:var(--paper,#fff)}
.plan--featured .plan__unit,.plan--featured .plan__fit span,.plan--featured .plan__period{color:var(--on-night-mute)}
.plan__fit{margin-top:24px;padding-block:16px;border-block:1px solid var(--rule);font-size:.9375rem;line-height:1.6}
.plan--featured .plan__fit{border-color:var(--night-rule)}
.plan__fit span{display:block;margin-bottom:6px;font-size:.75rem;color:var(--mist)}
.plan__features{flex:1;display:grid;align-content:start;gap:10px;margin-top:22px;font-size:.9375rem;line-height:1.55}
.plan__features li{position:relative;padding-left:18px}
.plan__features li::before{content:"";position:absolute;left:0;top:.62em;width:8px;height:4px;border-left:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(-45deg);opacity:.7}
.plan__period{margin-top:26px;font-size:.8125rem;color:var(--graphite)}
.plan .btn{width:100%;margin-top:14px}
.plan--featured .btn{background:var(--paper);color:var(--ink)}
.plan--featured .btn:hover{background:var(--klein);color:#fff}
.pricing__note{margin-top:24px;font-size:.8125rem;color:var(--graphite)}

/* ------------------------------------------------------------------ 08 trust */
.trust{padding-block:var(--sec)}
.trust__grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:24px;align-items:start}
.promises{grid-column:1 / span 7;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:44px 40px}
.promise{padding-top:20px;border-top:1px solid var(--ink)}
.promise h3{font-size:1.125rem;font-weight:600;line-height:1.5;letter-spacing:-.01em}
.promise p{margin-top:10px;color:var(--graphite);font-size:.9375rem}
.systems{grid-column:9 / span 4;background:var(--sheet);border:1px solid var(--rule);border-radius:22px;padding:26px 26px 12px}
.systems__title{display:flex;align-items:center;gap:10px;font-size:.9375rem;font-weight:600}
.live-dot{width:8px;height:8px;border-radius:50%;background:var(--klein);box-shadow:0 0 0 0 rgba(35,64,216,.5);animation:live 2.4s var(--ease) infinite}
@keyframes live{0%{box-shadow:0 0 0 0 rgba(35,64,216,.45)}70%,100%{box-shadow:0 0 0 9px rgba(35,64,216,0)}}
.systems li{padding:16px 0;border-top:1px solid var(--rule)}
.systems li:first-child{margin-top:16px}
.systems b{display:block;font-size:.9375rem;font-weight:600}
.systems li p{margin-top:4px;font-size:.875rem;line-height:1.65;color:var(--graphite)}
.reviews{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px;margin-top:72px}
.review{padding:28px;border:1px solid var(--rule);border-radius:22px;background:var(--sheet)}
.review blockquote{margin:0;font-family:var(--f-display);font-size:1.125rem;line-height:1.65}
.review p{margin-top:16px;font-size:.875rem;color:var(--graphite)}

/* ------------------------------------------------------------------ 09 faq */
.faq{padding-block:var(--sec);border-top:1px solid var(--rule)}
.faq__layout{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:24px}
.faq__head{grid-column:1 / span 4}
.faq__more{margin-top:16px;color:var(--graphite)}
.faq__list{grid-column:6 / span 7;border-top:1px solid var(--ink)}
.qa{border-bottom:1px solid var(--rule)}
.qa summary{display:flex;align-items:flex-start;justify-content:space-between;gap:24px;padding:24px 0;cursor:pointer;list-style:none;font-size:1.0625rem;font-weight:500;line-height:1.55}
.qa summary::-webkit-details-marker{display:none}
.qa__pm{position:relative;flex:none;width:14px;height:14px;margin-top:.4em}
.qa__pm::before,.qa__pm::after{content:"";position:absolute;left:0;top:50%;width:14px;height:1.5px;background:var(--ink);transition:transform .35s var(--ease-out)}
.qa__pm::after{transform:rotate(90deg)}
.qa[open] .qa__pm::after{transform:rotate(0)}
.qa__a{padding:0 40px 26px 0;color:var(--graphite);max-width:40em}

/* ------------------------------------------------------------------ 10 contact */
.contact{position:relative;background:var(--night);color:var(--on-night);padding-block:var(--sec)}
.contact__grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:24px;align-items:start}
.contact__intro{grid-column:1 / span 5}
.contact__title{font-family:var(--f-display);font-weight:500;font-size:var(--fs-h2);line-height:1.3;letter-spacing:-.025em}
.contact__lead{margin-top:20px;color:var(--on-night-mute);font-size:var(--fs-lead);max-width:26em}
.direct{display:grid;gap:14px;margin-top:40px}
.direct div{display:grid;grid-template-columns:76px minmax(0,1fr);gap:12px;align-items:baseline;padding-top:14px;border-top:1px solid var(--night-rule)}
.direct dt{font-size:.8125rem;color:var(--on-night-mute)}
.direct dd{font-size:1rem;min-width:0;overflow-wrap:anywhere}
.direct a{text-decoration:none;border-bottom:1px solid var(--night-rule)}
.direct a:hover{border-color:var(--on-night)}
.contact__note{margin-top:28px;font-size:.875rem;color:var(--on-night-mute)}
.form,.sent{grid-column:7 / span 6}
.form{display:grid;gap:26px}
.field{border:0;padding:0;margin:0;min-width:0}
.field__label{display:block;margin-bottom:10px;padding:0;font-size:.8125rem;color:var(--on-night-mute)}
.field__label em{font-style:normal;color:#6E7077;margin-left:4px}
.field-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}
.input{width:100%;border:0;border-bottom:1px solid var(--night-rule);border-radius:0;background:transparent;color:var(--on-night);padding:8px 0 12px;font-family:var(--f-text);font-size:1.0625rem;line-height:1.5;transition:border-color .25s}
.input::placeholder{color:#6E7077}
.input:focus{outline:none;border-color:var(--on-night)}
.input:focus-visible{outline:none}
textarea.input{resize:vertical;min-height:84px}
.field.has-error .input{border-color:#FF8A7A}
.field__error{min-height:0;font-size:.8125rem;color:#FF9A8C;margin-top:8px}
.field__error:empty{display:none}
.consent{display:flex;gap:12px;align-items:flex-start;font-size:.8125rem;line-height:1.65;color:var(--on-night-mute);cursor:pointer}
.consent input{flex:none;width:18px;height:18px;margin:2px 0 0;accent-color:var(--klein)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.form__submit{display:flex;flex-wrap:wrap;align-items:center;gap:16px 22px}
.form__status{font-size:.875rem;color:var(--on-night-mute);max-width:30em}
.form__status.is-error{color:#FF9A8C}
.sent{padding:40px 0}
.sent__title{font-family:var(--f-display);font-size:var(--fs-h3);font-weight:500;letter-spacing:-.02em;line-height:1.3}
.sent__desc{margin-top:16px;color:var(--on-night-mute)}
.sent .btn{margin-top:32px}

/* ------------------------------------------------------------------ footer */
.site-footer{background:var(--night);color:var(--on-night-mute);padding-block:0 calc(40px + env(safe-area-inset-bottom,0px))}
.footer__top{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:24px;padding-block:64px 32px;border-top:1px solid var(--night-rule)}
.footer__mark{font-family:var(--f-mark);font-stretch:125%;font-weight:600;font-size:clamp(2.25rem,1rem + 6vw,6.5rem);line-height:.9;letter-spacing:-.01em;color:var(--on-night)}
.footer__nav{display:flex;flex-wrap:wrap;gap:8px 24px;font-size:.875rem}
.footer__nav a{text-decoration:none}
.footer__nav a:hover{color:var(--on-night)}
.footer__info{display:flex;flex-wrap:wrap;gap:6px 20px;font-size:.8125rem;padding-top:24px;border-top:1px solid var(--night-rule)}

/* ------------------------------------------------------------------ project detail */
.detail{width:100%;height:100%;max-width:none;max-height:none;margin:0;padding:0;border:0;background:var(--paper);color:var(--ink);overflow:hidden}
.detail::backdrop{background:rgba(22,23,27,.35)}
.detail[open]{animation:detailIn .55s var(--ease-out)}
@keyframes detailIn{from{opacity:0;transform:translateY(28px)}to{opacity:1;transform:none}}
.detail__inner{height:100%;overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch}
.detail__top{position:sticky;top:0;z-index:3;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:calc(14px + env(safe-area-inset-top,0px)) var(--gutter) 14px;background:rgba(244,244,241,.92);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}
.detail__no{color:var(--graphite)}
.detail__body{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(0,1fr);gap:clamp(32px,4.5vw,80px);width:100%;max-width:calc(var(--maxw) + var(--gutter) * 2);margin:0 auto;padding:16px var(--gutter) 56px}
.detail__view{position:sticky;top:96px;align-self:start;min-width:0}
.device-toggle{display:inline-flex;gap:2px;padding:3px;border:1px solid var(--rule);border-radius:99px;margin-bottom:20px;background:var(--sheet)}
.device-toggle button{height:34px;padding:0 16px;border:0;border-radius:99px;background:transparent;font-size:.8125rem;font-weight:500;color:var(--graphite);cursor:pointer;transition:background-color .25s,color .25s}
.device-toggle button[aria-pressed="true"]{background:var(--ink);color:var(--paper)}
.detail__device{width:100%;margin:0 auto;transition:width .8s var(--ease-out);--bar:30px;--r:12px;--pb:8px;--pr:34px}
.detail__device.is-phone{width:min(320px,74%)}
.detail__device .screen{overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin}
.detail__device .frame .screen{max-height:min(64vh,620px)}
.detail__device .phone .screen{max-height:min(68vh,640px)}
.detail__device .screen__inner{transform:none}
.detail__hint{margin-top:14px;font-size:.8125rem;color:var(--mist);text-align:center}
.detail__info{min-width:0;padding-top:8px}
.detail__cat{color:var(--graphite);font-size:.9375rem}
.detail__title{margin-top:8px;font-family:var(--f-display);font-weight:500;font-size:var(--fs-h3);line-height:1.2;letter-spacing:-.025em}
.detail__summary{margin-top:18px;font-size:var(--fs-lead);line-height:1.75}
.overview--stack{grid-template-columns:1fr;gap:22px;margin-top:36px;padding-top:28px;border-top:1px solid var(--rule)}
.detail__design{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:32px;padding-top:24px;border-top:1px solid var(--rule)}
.detail__k{font-size:.8125rem;color:var(--mist)}
.detail__v{margin-top:8px;font-size:.875rem;line-height:1.6}
.swatches{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
.swatches i{width:26px;height:26px;border-radius:50%;background:var(--c);box-shadow:inset 0 0 0 1px rgba(22,23,27,.12)}
.detail__actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px 18px;margin-top:36px}
.detail__private{font-size:.875rem;color:var(--graphite)}
.detail__nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;padding-block:28px calc(36px + env(safe-area-inset-bottom,0px));border-top:1px solid var(--rule)}
.detail__step{display:grid;gap:6px;justify-items:start;padding:12px 0;border:0;background:none;cursor:pointer;text-align:left;min-width:0}
.detail__step span:last-child{font-family:var(--f-display);font-size:1.25rem;font-weight:500;letter-spacing:-.015em;max-width:100%;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.detail__step .label{color:var(--mist)}
.detail__step--next{justify-items:end;text-align:right}
.detail__step:hover span:last-child{text-decoration:underline;text-underline-offset:5px;text-decoration-thickness:1px}

/* ------------------------------------------------------------------ mobile CTA + cursor */
.mcta{position:fixed;left:0;right:0;bottom:0;z-index:45;display:none;padding:12px var(--gutter) calc(12px + env(safe-area-inset-bottom,0px));
  background:rgba(244,244,241,.92);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);box-shadow:0 -1px 0 var(--rule);
  transform:translateY(110%);transition:transform .45s var(--ease-out)}
.mcta.is-on{transform:none}
.mcta .btn{width:100%}

.cursor{position:fixed;left:0;top:0;z-index:70;width:84px;height:84px;margin:-42px 0 0 -42px;border-radius:50%;background:var(--klein);color:#fff;
  display:grid;place-items:center;pointer-events:none;opacity:0;transform:translate3d(-200px,-200px,0) scale(.3);transition:opacity .3s var(--ease),scale .45s var(--ease-out)}
.cursor.is-on{opacity:1}
.cursor.on-dark{background:var(--on-void);color:var(--ink)}
.cursor__label{font-family:var(--f-mark);font-size:.6875rem;font-weight:600;letter-spacing:.14em}
.has-cursor [data-cursor]{cursor:none}
.has-cursor [data-cursor] a,.has-cursor [data-cursor] button{cursor:none}

/* ------------------------------------------------------------------ responsive */
@media (max-width: 1100px){
  .gnb{gap:22px}
  .chapter__summary{grid-column:1 / span 5}
  .chapter__side{grid-column:7 / span 6}
  .overview{grid-template-columns:1fr;gap:22px}
  .promises{grid-column:1 / span 12}
  .systems{grid-column:1 / span 12}
  .plans{gap:14px}
  .plan{padding:28px 22px 24px}
}

@media (max-width: 900px){
  :root{--header-h:60px}
  .gnb,.header-cta{display:none}
  .menu-btn{display:grid}
  .mcta{display:block}
  .section-head{grid-template-columns:1fr;gap:14px}
  .section-title,.section-desc{grid-column:auto}

  :root{--film:250vh}
  .hero__space{background:radial-gradient(circle at 50% 40%,#17181C 0%,#121316 24%,#0D0E10 50%,#08090A 100%)}
  .hero__vignette{background:radial-gradient(ellipse 95% 72% at 50% 40%,rgba(7,8,9,0) 55%,rgba(7,8,9,.55) 100%)}
  .hero__bottom{bottom:calc(12px + env(safe-area-inset-bottom,0px));flex-direction:column;align-items:stretch;gap:0}
  .hero__meta{display:none}
  .hero__cue{--cue:24px;position:relative;left:auto;bottom:auto;transform:none;align-self:center;margin-top:14px;gap:8px}
  .hero__feature::before{background:linear-gradient(180deg,rgba(8,9,10,0) 44%,rgba(8,9,10,.78) 64%,rgba(8,9,10,.9) 100%)}
  .hero__feature-in{left:var(--gutter);right:var(--gutter);top:auto;bottom:calc(9svh + env(safe-area-inset-bottom,0px));transform:none;max-width:none}
  .hero__ftitle{margin-top:12px}
  .hero__fsum{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
  .hero__factions{margin-top:20px}
  .sphere-fallback{top:40%;width:78vw}

  .intro__grid{grid-template-columns:1fr;gap:28px}

  .chapter__body{grid-template-columns:1fr}
  .chapter__summary,.chapter__side{grid-column:auto}
  .chapter__desktop{--bar:22px;--r:10px}
  .chapter__phone{width:28%;bottom:-6%;--pb:5px;--pr:20px}
  .overview{grid-template-columns:repeat(2,minmax(0,1fr))}

  .index__row{grid-template-columns:40px minmax(0,1fr) 40px;gap:12px;padding:18px 0}
  .row__cat,.row__year{display:none}
  .float{display:none}

  .process__body{grid-template-columns:1fr;gap:0}
  .build-wrap{grid-column:1;grid-row:1;top:calc(var(--header-h) + env(safe-area-inset-top,0px));z-index:2;background:var(--sheet);padding-block:12px 16px;margin-inline:calc(var(--gutter) * -1);padding-inline:var(--gutter)}
  .build{max-width:520px;margin-inline:auto}
  .steps{grid-column:1;grid-row:2;padding-left:44px}
  .step{min-height:56svh;padding-block:20px 36px}
  .step:last-child{min-height:40svh}
  .step__no{left:-44px}
  .steps::before,.steps::after{left:12px}

  .svc{grid-template-columns:1fr;gap:8px;padding:24px 0}
  .svc h3,.svc__desc,.svc__fit{grid-column:auto;justify-self:start;text-align:left}
  .svc__fit span{display:inline;margin-right:6px}

  .plans{grid-template-columns:1fr;gap:16px;max-width:520px}
  .promises{grid-template-columns:1fr;gap:32px}

  .faq__head,.faq__list{grid-column:1 / span 12}
  .faq__list{margin-top:24px}

  .contact__intro,.form,.sent{grid-column:1 / span 12}
  .form{margin-top:48px}
  .field-row{grid-template-columns:1fr}

  .detail__body{grid-template-columns:1fr;gap:28px;padding-top:4px}
  .detail__view{position:relative;top:0}
  .detail__design{grid-template-columns:1fr 1fr}
  .site-footer{padding-bottom:calc(96px + env(safe-area-inset-bottom,0px))}
}

@media (max-width: 560px){
  .hero__actions .btn,.hero__factions .btn{flex:1 1 auto}
  .overview{grid-template-columns:1fr}
  .chapter__phone{width:30%}
  .detail__design{grid-template-columns:1fr}
  .b-brief li{font-size:10.5px;padding:5px 0}
  .b-brief{padding:12px 14px 6px}
  .b-analysis{gap:8px}
  .b-swatches i{width:20px;height:20px}
  .b-aa{font-size:20px}
  .b-type{padding:6px 8px}
  .b-keys span{font-size:9px;padding:2px 7px}
  .b-code pre{font-size:7.5px}
  .b-qa li{font-size:10px;padding:4px 0}
}

@media (max-width: 900px) and (max-height: 720px){
  .hero__lead{display:none}
}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;transition-delay:0s!important}
  .chapter__desktop,.chapter__phone{transform:none}
}

/* ------------------------------------------------------------------ 화면 출처 표시 · 상세 보기 페이지 선택 */
.screen-badge{display:inline-flex;align-items:center;gap:7px;margin-left:12px;padding:3px 10px 3px 9px;border:1px solid var(--rule);border-radius:99px;
  font-size:.75rem;font-weight:500;line-height:1.5;color:var(--graphite);vertical-align:2px;white-space:nowrap;background:var(--sheet)}
.screen-badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--ink)}
.screen-badge--masked::before{background:transparent;box-shadow:inset 0 0 0 1.5px var(--ink)}
.screen-badge--concept{border-style:dashed;color:var(--mist)}
.screen-badge--concept::before{background:var(--mist)}
.detail__pages{display:flex;flex-wrap:wrap;gap:6px;margin:-6px 0 16px}
.detail__pages[hidden]{display:none}
.detail__page{height:32px;padding:0 14px;border:1px solid var(--rule);border-radius:99px;background:transparent;font:inherit;font-size:.8125rem;color:var(--graphite);cursor:pointer;transition:border-color .2s,color .2s,background-color .2s}
.detail__page:hover{border-color:var(--ink);color:var(--ink)}
.detail__page[aria-pressed="true"]{background:var(--ink);border-color:var(--ink);color:var(--paper)}
.detail__state{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:6px 10px;margin-top:10px;font-size:.8125rem;line-height:1.6;color:var(--graphite);text-align:center}
.detail__state:empty{display:none}
.detail__state .screen-badge{margin-left:0}
@media (max-width: 640px){
  .screen-badge{display:flex;width:max-content;margin:10px 0 0}
  .detail__state{justify-content:flex-start;text-align:left}
}