/* ============================================================
   Xing Ge - shared styles
   Used by index.html and work-abito-allora.html
   ============================================================ */

:root{
  --paper:#FBFAF7;
  --paper-warm:#F1EEE7;
  --ink:#15181B;
  --ink-soft:#3E4349;
  --ink-faint:#797E84;
  --rule:#D9D5CC;
  --rule-soft:#E7E3DA;

  --seal:#A93226;          /* cinnabar accent */
  --seal-wash:#F8EBE8;
  --deep:#1E3A32;          /* deep pine, the lacquer green against the seal red */       
  --deep-text:#DCE6E0;     /* 9.4:1 on the green */
  --deep-bright:#F4F8F5;   /* 17:1 */
  --deep-rule:#3C5C52;
  --deep-idx:#E2C99C;      /* champagne, 7.5:1 */
  --deep-aside:#A8BDB3;    /* 6.1:1 */

  --display:"Newsreader",Georgia,"Times New Roman",serif;
  --body:"Archivo","Helvetica Neue",Arial,sans-serif;
  --han:"Noto Serif SC",serif;

  --gutter:clamp(20px,5vw,72px);
  --measure:66ch;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{animation:none!important;transition:none!important}
}
body{
  margin:0;background:var(--paper);color:var(--ink-soft);
  font-family:var(--body);font-size:18px;line-height:1.68;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit}
:focus-visible{outline:2px solid var(--seal);outline-offset:3px}
::selection{background:var(--seal);color:#fff}

/* Serif only at 21px and up, where it stays easy to read.
   Everything at reading size is set in the sans. */
h1,h2,h3,h4,.brand,.lede,.stat b,.contact h2{
  font-family:var(--display);font-weight:500;color:var(--ink);
  font-variation-settings:"opsz" 40;
}

.wrap{max-width:1260px;margin:0 auto;padding-inline:var(--gutter)}
.rule{border:0;border-top:1px solid var(--rule);margin:0}
section{padding-block:clamp(66px,9vw,124px)}

.head{display:flex;align-items:baseline;gap:18px;margin-bottom:clamp(34px,5vw,56px)}
.head .idx{
  font-family:var(--body);font-size:13px;font-weight:600;letter-spacing:.04em;
  color:var(--seal);flex:none;padding-top:.35em;
}
.head h2{font-size:clamp(31px,4.4vw,50px);line-height:1.08;letter-spacing:-.012em;margin:0}
.head .aside{margin-left:auto;max-width:34ch;font-size:15px;line-height:1.55;color:var(--ink-faint);text-align:right}
@media(max-width:820px){
  .head{flex-wrap:wrap}
  .head .aside{margin-left:0;text-align:left;max-width:none;flex-basis:100%;margin-top:12px}
}

/* ---------- masthead ---------- */
.masthead{
  position:sticky;top:0;z-index:50;
  background:rgba(251,250,247,.93);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--rule);
}
.masthead .inner{display:flex;align-items:center;gap:24px;height:64px}
.logo{font-family:var(--display);font-size:22px;font-weight:600;text-decoration:none;color:var(--ink);flex:none}
.logo em{font-style:italic;font-weight:400;color:var(--seal)}
.masthead nav{margin-left:auto;display:flex;gap:26px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.masthead nav::-webkit-scrollbar{display:none}
.masthead nav a{
  font-size:14.5px;font-weight:500;text-decoration:none;color:var(--ink-soft);
  white-space:nowrap;padding-block:5px;border-bottom:1.5px solid transparent;
  transition:border-color .15s,color .15s;
}
.masthead nav a:hover,.masthead nav a[aria-current]{color:var(--ink);border-bottom-color:var(--seal)}
@media(max-width:900px){.masthead .inner{gap:14px}.masthead nav{gap:18px;margin-left:14px}.masthead nav a{font-size:13.5px}}
@media(max-width:600px){.logo{font-size:19px}}

/* ---------- image placeholder ---------- */
.ph{position:relative;background:var(--paper-warm);overflow:hidden}
.ph::after{
  content:attr(data-label);position:absolute;inset:0;z-index:0;
  display:flex;align-items:center;justify-content:center;padding:20px;text-align:center;
  font-size:13px;line-height:1.5;color:var(--ink-faint);
  background-image:repeating-linear-gradient(45deg,transparent 0 11px,rgba(169,50,38,.05) 11px 22px);
}
.ph img{position:relative;z-index:1}
.ph img.is-missing{display:none}

/* ---------- proof band ---------- */
.proof{
  margin-top:clamp(52px,7vw,88px);
  border-top:1px solid var(--ink);border-bottom:1px solid var(--rule);
  background:var(--paper-warm);
}
.proof .wrap{display:grid;grid-template-columns:repeat(4,1fr);padding-inline:0}
.stat{padding:clamp(24px,3.2vw,36px) clamp(18px,2.4vw,30px);border-right:1px solid var(--rule)}
.stat:first-child{padding-left:var(--gutter)}
.stat:last-child{border-right:0;padding-right:var(--gutter)}
.stat b{display:block;font-size:clamp(33px,5vw,58px);line-height:1;letter-spacing:-.025em;font-variation-settings:"opsz" 60}
.stat span{display:block;margin-top:10px;font-size:14px;line-height:1.45;color:var(--ink-soft);max-width:21ch}
@media(max-width:780px){
  .proof .wrap{grid-template-columns:1fr 1fr}
  .stat{padding-inline:var(--gutter)}
  .stat:nth-child(2n){border-right:0}
  .stat:nth-child(-n+2){border-bottom:1px solid var(--rule)}
}

/* ---------- shared text bits ---------- */
.lede{font-size:clamp(21px,2.4vw,27px);line-height:1.34;margin:0 0 24px;letter-spacing:-.008em}
.plain-list{list-style:none;margin:0;padding:0}
.plain-list li{padding:14px 0;border-top:1px solid var(--rule-soft);font-size:16px;line-height:1.5}
.plain-list li:last-child{border-bottom:1px solid var(--rule-soft)}
.plain-list strong{display:block;margin-bottom:3px;color:var(--ink);font-weight:600}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0;list-style:none}
.tags li{font-size:13px;color:var(--ink-soft);border:1px solid var(--rule);padding:4px 12px;border-radius:999px}


/* ---------- case study blocks (used on the homepage and the case study page) ---------- */
.case-hero{display:grid;grid-template-columns:1.05fr 1fr;border:1px solid var(--ink);
  margin-bottom:clamp(44px,6vw,72px)}
.case-hero .ph{min-height:350px}
.case-hero .ph img{width:100%;height:100%;object-fit:cover}
.case-hero .body{padding:clamp(26px,3.4vw,46px);display:flex;flex-direction:column}
.case-hero h3{font-size:clamp(28px,3.5vw,42px);line-height:1.06;letter-spacing:-.018em;margin:0 0 10px}
.case-hero h3 a{text-decoration:none;border-bottom:2px solid var(--seal);padding-bottom:2px}
.case-hero h3 a:hover{color:var(--seal)}
.case-hero .role{font-size:14.5px;font-weight:600;color:var(--seal);margin:0 0 18px}
.case-hero .body p{margin:0 0 18px;max-width:45ch}
.case-hero .spec{margin-top:auto;padding-top:22px;border-top:1px solid var(--rule);
  display:grid;grid-template-columns:1fr 1fr;gap:16px 24px;font-size:14.5px}
.case-hero .spec dt{color:var(--ink-faint);margin-bottom:3px;font-size:13.5px}
.case-hero .spec dd{margin:0;font-weight:500;color:var(--ink)}
@media(max-width:880px){.case-hero{grid-template-columns:1fr}.case-hero .ph{min-height:250px}}

.cols{display:grid;grid-template-columns:repeat(12,1fr);gap:36px;align-items:start}
.col-problem{grid-column:1/5}
.col-approach{grid-column:6/13}
@media(max-width:920px){.col-problem,.col-approach{grid-column:1/13}}

.move{padding:28px 0;border-top:1px solid var(--ink)}
.move h3{font-family:var(--display);font-weight:500;color:var(--ink);
  font-size:clamp(21px,2.3vw,27px);line-height:1.18;margin:0 0 12px;letter-spacing:-.008em}
.move p{margin:0 0 14px;max-width:var(--measure)}

.figs{display:grid;grid-template-columns:1fr 1fr;gap:34px;margin-top:clamp(44px,5vw,64px)}
.figs figure{margin:0}
.figs .ph{border:1px solid var(--rule);min-height:210px}
.figs figcaption{margin-top:13px;font-size:14.5px;line-height:1.52;padding-left:15px;border-left:2px solid var(--seal)}
.figs .wide{grid-column:1/3}
.figs .wide .ph{min-height:300px}
@media(max-width:780px){.figs{grid-template-columns:1fr}.figs .wide{grid-column:auto}}

.case-cta{margin-top:clamp(40px,5vw,58px);padding-top:28px;border-top:1px solid var(--ink);
  display:flex;flex-wrap:wrap;gap:16px 28px;align-items:center;justify-content:space-between}
.case-cta p{margin:0;max-width:46ch;font-size:16px}

/* ---------- buttons ---------- */
.btn{display:inline-block;text-decoration:none;font-size:15.5px;font-weight:500;
  padding:14px 28px;border:1px solid var(--ink);color:var(--ink);transition:background .15s,color .15s,border-color .15s}
.btn-solid{background:var(--ink);color:var(--paper)}
.btn-solid:hover{background:var(--seal);border-color:var(--seal)}
.btn-ghost:hover{background:var(--ink);color:var(--paper)}

/* ---------- contact ---------- */
.contact{background:var(--seal-wash);border-top:1px solid var(--seal)}
.contact h2{font-size:clamp(31px,5.2vw,62px);line-height:1.06;letter-spacing:-.02em;margin:0 0 22px;max-width:17ch}
.contact p{max-width:50ch;margin:0 0 34px}
.contact .links{display:flex;flex-wrap:wrap;gap:14px}

footer{padding:30px 0;border-top:1px solid var(--rule);font-size:14px;color:var(--ink-faint)}
footer .inner{display:flex;flex-wrap:wrap;gap:12px 28px;align-items:center}
footer a{text-decoration:none}
footer a:hover{color:var(--ink)}
@media(max-width:700px){footer .set{display:none}}

@media print{
  .masthead,.contact .links,.back{display:none}
  body{background:#fff;font-size:11pt}
  section{padding-block:18pt}
}