@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600&family=Space+Grotesk:wght@400;500;600&display=swap');

:root{
  --font-sans: "DM Sans", "Helvetica Neue", Arial, sans-serif;
  --font-display: "Space Grotesk", "Helvetica Neue", Arial, sans-serif;
  --bg:#f6f4ef;
  --fg:#111111;
  --muted:#5f5a52;
  --line:#e5dfd4;
  --panel:#fbfaf7;
  --panel2:#f3efe6;
  --shadow: 0 18px 40px rgba(17,17,17,.12);
  --radius: 12px;
  --radius-lg: 16px;
  --container: 920px;
  --container-wide: 1160px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: var(--font-sans);
  background: var(--bg);
  color:var(--fg);
  letter-spacing:.1px;
  font-size:18px;
}

a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

.container{width:min(92vw,var(--container));margin-inline:auto}
.container--wide{width:min(92vw,var(--container-wide));margin-inline:auto}
.main{display:flex; flex-direction:column; gap:56px}
.muted{color:var(--muted)}
.skip{
  position:absolute; left:-999px; top:auto;
  width:1px; height:1px; overflow:hidden;
}
.skip:focus{
  left: 12px; top: 12px;
  width:auto; height:auto;
  padding: 10px 12px;
  background: #fff;
  color:#000;
  border-radius:999px;
  z-index:99;
}

/* Header */
.header{
  position:sticky; top:0; z-index:20;
  background: rgba(246,244,239,.9);
  border-bottom:1px solid var(--line);
}
.header__inner{
  display:flex; align-items:center; justify-content:space-between;
  padding: 14px 0;
}
.logo{display:flex; align-items:center; gap:10px}
.logo__mark{
  width:8px; height:8px; border-radius:2px;
  background:#111;
}
.logo__text{font-weight:600; letter-spacing:.2px}

.nav{display:flex; gap:16px; align-items:center}
.nav__link{
  font-size:12px;
  text-transform:uppercase;
  letter-spacing:1.6px;
  color:var(--muted);
  padding:6px 2px;
  border-bottom:1px solid transparent;
  transition:180ms ease;
}
.nav__link:hover{color:var(--fg); border-bottom-color: var(--fg)}
.lang-toggle{
  font-size:11px;
  letter-spacing:1.6px;
  text-transform:uppercase;
  color:var(--muted);
  background:transparent;
  border:1px solid var(--line);
  padding:6px 10px;
  border-radius:999px;
  cursor:pointer;
}
.lang-toggle:hover{color:var(--fg); border-color:var(--fg)}

/* Hero */
.hero{padding:88px 0 24px; width:min(92vw,var(--container)); margin:0 auto}
.hero__grid{
  display:grid;
  grid-template-columns: 1.2fr .9fr;
  gap: 44px;
  align-items:start;
}
.eyebrow{
  margin:0 0 12px;
  font-size:11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--muted);
}
.hero__title{
  margin:0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(44px, 7vw, 82px);
  line-height: 1.02;
  letter-spacing: -1px;
}
.hero__subtitle{
  font-size: clamp(22px, 3.2vw, 34px);
  display:inline-block;
  margin-top:8px;
}
.hero__lead{
  margin:0 0 10px;
  font-size: 16px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 56ch;
}
.hero__about{
  margin:0 0 18px;
  color:var(--muted);
  line-height:1.7;
  max-width: 66ch;
  font-size:16px;
}
.hero__slogan{
  margin:0 0 18px;
  font-size:13px;
  letter-spacing:1.4px;
  text-transform:uppercase;
  color:var(--muted);
}
.hero__preview{
  background: var(--panel);
  border:1px solid var(--line);
  border-radius: 16px;
  padding: 10px;
}
.hero__preview-img{
  width:100%;
  display:block;
  border-radius: 12px;
}
.hero__cta{display:flex; gap:12px; align-items:center; margin-bottom: 22px}
.hero__meta{display:flex; gap:8px; flex-wrap:wrap}

/* Buttons */
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  height:auto; padding:2px 0;
  border-radius:0;
  border:0;
  font-size:13px;
  text-transform:uppercase;
  letter-spacing:1.4px;
  transition:180ms ease;
}
.btn--primary,
.btn--ghost{
  border-bottom:1px solid var(--fg);
}
.btn--primary:hover,
.btn--ghost:hover{opacity:.7}

.tag{
  font-size:12px;
  padding:6px 0;
  border-radius:0;
  border-bottom:1px solid var(--line);
  color:var(--muted);
}

/* Profile */
.profile{
  border:1px solid var(--line);
  background: transparent;
  border-radius: var(--radius-lg);
  box-shadow: none;
  overflow:hidden;
}
.profile__img{
  width:100%;
  aspect-ratio: 3/4;
  object-fit: contain;
  object-position: center top;
}
.profile__info{padding:14px 16px}
.profile__name{margin:0; font-weight:700}
.profile__role{margin:6px 0 0; color:var(--muted); font-size:14px}
.profile__note{margin:10px 0 0; color:var(--muted); font-size:13px; line-height:1.65}

/* Metrics */
.metrics{
  margin-top: 40px;
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:10px;
}
.metric{
  border:1px solid var(--line);
  background: transparent;
  border-radius: 12px;
  padding: 12px;
}
.metric__num{font-weight:800; font-size:18px}
.metric__label{color:var(--muted); font-size:12px; margin-top:6px; line-height:1.4}
.metric__label br{display:block; content:""; margin-top:2px}

/* Sections */
.section{padding:24px 0 8px; border-top:1px solid var(--line); width:min(92vw,var(--container)); margin:0 auto}
.section--about{
  border-top:none;
  margin-top:0;
  padding:0;
}
.section--stack{
  margin-top:-24px;
}
.footer-dark-section{
  margin-top:-16px;
}
.section__head{
  display:flex;
  justify-content:space-between;
  gap:16px;
  align-items:baseline;
  margin-bottom:18px;
}
.about__grid{
  display:grid;
  grid-template-columns: 1.2fr .9fr;
  gap: 32px;
  align-items:start;
}
.about__left .section__title{
  margin-bottom:12px;
}
.about__text{
  margin:0;
  color:var(--muted);
  line-height:1.7;
  max-width: 70ch;
}
.section__title{
  margin:0;
  font-size:22px;
  font-family: var(--font-display);
}
.section__desc{margin:0; color:var(--muted); font-size:15px; line-height:1.7; max-width: 68ch}
.about__text{
  margin:0;
  color:var(--muted);
  line-height:1.7;
  max-width: 70ch;
}

/* Work list */
.worklist{display:flex; flex-direction:column; gap:32px}
.workcard{
  display:grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 26px;
  padding: 28px 0;
  margin: 0;
  border-radius: 0;
  border-top: 1px solid var(--line);
  background: transparent;
  box-shadow: none;
}
.workcard--featured{
  grid-template-columns: 1.2fr .8fr;
  padding: 34px 0;
}
.workcard__media{
  border-radius: 10px;
  overflow:hidden;
  border:1px solid var(--line);
}
.workcard__media img{
  width:100%;
  aspect-ratio: 16/10;
  object-fit: cover;
  transform: scale(1);
  transition: 300ms ease;
}
.workcard__video{
  width:100%;
  aspect-ratio: 16/10;
  object-fit: cover;
  display:block;
}
.workcard__media-img--contain{
  object-fit: contain;
  background: var(--panel);
}
.workcard__media:hover img{transform: scale(1.03)}
.workcard__eyebrow{
  margin:4px 0 10px;
  font-size:11px;
  letter-spacing:1.8px;
  text-transform:uppercase;
  color:var(--muted);
}
.workcard__micro{
  display:inline-block;
  font-size:10px;
  letter-spacing:1.8px;
  text-transform:uppercase;
  color:rgba(17,17,17,.55);
  border:1px solid rgba(17,17,17,.18);
  padding:4px 8px;
  border-radius:999px;
  margin-bottom:8px;
}
.workcard__title{
  margin:0 0 10px;
  font-size: clamp(24px, 3.4vw, 40px);
  line-height:1.15;
  letter-spacing:-.4px;
  font-family: var(--font-display);
}
.workcard__text{
  margin:0 0 14px;
  color:var(--muted);
  line-height:1.7;
  font-size:16px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}

.chips{padding:0; margin:0 0 12px; display:flex; flex-wrap:wrap; gap:8px}
.chip{
  font-size:11px;
  padding:0;
  border-radius:0;
  border:0;
  background: transparent;
  color:var(--muted);
  text-transform:uppercase;
  letter-spacing:1.4px;
}

.link{
  display:inline-flex;
  gap:8px;
  align-items:center;
  font-size:12px;
  font-weight:600;
  text-transform:uppercase;
  letter-spacing:1.5px;
  padding:8px 0 2px;
  border-bottom:1px solid var(--fg);
}
.link:hover{opacity:.7}

.serif-quote{
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 400;
}

.lang-en{
  font-size:17px;
  letter-spacing:.2px;
}

.cn-olist{
  margin:0;
  display:flex;
  flex-direction:column;
  gap:8px;
  color:var(--muted);
  line-height:1.7;
}
.cn-olist p{margin:0}

/* Layout helpers */
.twocol{display:grid; grid-template-columns: 1fr 1fr; gap:16px}
.card{
  padding:16px;
  border-radius: var(--radius-lg);
  border:1px solid var(--line);
  background: var(--panel);
}
.card__title{margin:0 0 10px; font-size:16px}
.list{margin:0; padding-left:18px; color:var(--muted); line-height:1.75; font-size:14px}
.links{display:flex; gap:14px; flex-wrap:wrap}
.footer{margin-top:18px; padding-top:18px; border-top:1px solid var(--line)}
.footerx__note{
  margin-top:8px;
  font-size:11px;
  opacity:.5;
}

/* Case page */
.casehero{padding:44px 0 10px}
.casehero__title{
  margin:0 0 10px;
  font-size: clamp(34px, 5vw, 56px);
  line-height:1.06;
  font-family: var(--font-display);
}
.casehero__lead{margin:0 0 18px; color:var(--muted); line-height:1.7; max-width: 70ch}
.casehero__media{
  border-radius: var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
}
.casehero__media img{width:100%; aspect-ratio: 16/9; object-fit:cover}

.snapshot{
  margin-top:14px;
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap:10px;
}
.snapshot__item{
  padding:12px;
  border-radius: 16px;
  border:1px solid var(--line);
  background: var(--panel);
}
.snapshot__k{font-size:12px; color:var(--muted); margin-bottom:6px}
.snapshot__v{font-size:13px; line-height:1.5; color:rgba(255,255,255,.86)}

.grid4{display:grid; grid-template-columns: repeat(4, 1fr); gap:12px}
.mini{
  padding:14px;
  border-radius: 16px;
  border:1px solid var(--line);
  background: var(--panel);
}
.mini__title{margin:0 0 8px; font-weight:700}
.mini__text{margin:0; color:var(--muted); font-size:13px; line-height:1.6}

.insights{display:flex; flex-direction:column; gap:14px}
.insight{
  padding:16px;
  border-radius: var(--radius-lg);
  border:1px solid var(--line);
  background: var(--panel);
}
.insight__title{margin:0 0 8px; font-size:16px}
.insight__text{margin:0 0 12px; color:var(--muted); line-height:1.7; font-size:14px}

.callout{
  padding:14px;
  border-radius: 16px;
  border:1px solid var(--line);
  background: var(--panel);
}
.big{margin:6px 0 0; font-size:16px; font-weight:750}

.mockchart{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.mockchart__bar{
  padding:10px 12px;
  border-radius: 14px;
  border:1px solid var(--line);
  background: linear-gradient(90deg, rgba(17,17,17,.12) var(--w), rgba(17,17,17,.04) var(--w));
  color:#26211a;
  font-size:13px;
}

.pillbox{
  padding:14px;
  border-radius: 16px;
  border:1px solid var(--line);
  background: var(--panel);
}
.pillbox--warn{background: var(--panel2)}
.pillbox__title{margin:0 0 8px; color:var(--muted); font-size:12px; letter-spacing:1.2px; text-transform:uppercase}
.pillbox__item{margin:0; font-size:13px; color:rgba(255,255,255,.86); line-height:1.6}

.roadmap{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.phase{
  padding:16px;
  border-radius: var(--radius-lg);
  border:1px solid var(--line);
  background: var(--panel);
}
.phase__k{margin:0 0 6px; color:var(--muted); font-size:12px; letter-spacing:1.2px; text-transform:uppercase}
.phase__t{margin:0 0 10px; font-size:16px}
.back{margin-top:14px}

/* Responsive */
@media (max-width: 980px){
  .hero__grid{grid-template-columns: 1fr}
  .about__grid{grid-template-columns: 1fr}
  .metrics{grid-template-columns: 1fr 1fr}
  .workcard{grid-template-columns: 1fr}
  .twocol{grid-template-columns: 1fr}
  .grid4{grid-template-columns: 1fr 1fr}
  .snapshot{grid-template-columns: 1fr 1fr}
  .roadmap{grid-template-columns: 1fr}
}
@media (max-width: 520px){
  .metrics{grid-template-columns: 1fr}
  .grid4{grid-template-columns: 1fr}
  .snapshot{grid-template-columns: 1fr}
}
/* =======================
   Feature Promo (Homepage)
======================= */

.promo {
  background: transparent;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 96px 0;
}

.promo__inner {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: center;
}
.promo__right{
  display:flex;
  justify-content:flex-start;
}

.promo__tag {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 12px;
}

.promo__title {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 48px);
  margin-bottom: 16px;
  color: var(--fg);
}

.promo__desc {
  color: var(--muted);
  max-width: 520px;
  margin-bottom: 20px;
}

.promo__meta {
  display: flex;
  gap: 10px;
  margin-bottom: 28px;
}

.promo__chip {
  border: 0;
  border-radius: 0;
  padding: 0;
  font-size: 11px;
  color: var(--muted);
  text-transform:uppercase;
  letter-spacing:1.4px;
}

.promo__cta {
  display: inline-block;
  font-weight: 600;
  text-transform:uppercase;
  letter-spacing:1.4px;
  color: var(--fg);
  border-bottom: 1px solid var(--fg);
  padding-bottom: 4px;
}

.promo__cta:hover {
  opacity: 0.8;
}

.promo__visual {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  height: 260px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 900px) {
  .promo__inner {
    grid-template-columns: 1fr;
  }
}
.promo_visual {
  border-radius: 12px;
  overflow: hidden;
  background: var(--panel);
  box-shadow: var(--shadow);
  transform: translateX(-14px) scale(1.05);
  transform-origin: left center;
}

.promo_visual video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* =======================
   Dark Footer Section
======================= */
.footer-dark-section{
  width:100%;
  background:var(--bg);
  color:var(--fg);
  padding:72px 0 84px;
  border-top:1px solid var(--line);
}
.footer-dark-section__inner{
  width:min(92vw,1200px);
  margin:0 auto;
  display:flex;
  flex-direction:column;
  gap:48px;
}
.footer-dark-section__row{
  display:flex;
  flex-direction:column;
  gap:24px;
}
.footer-dark-section__head{
  display:flex;
  justify-content:space-between;
  align-items:baseline;
  gap:16px;
  flex-wrap:wrap;
}
.footer-dark-section__title{
  margin:0;
  font-size:24px;
  color:var(--fg);
}
.footer-dark-section__subtitle{
  margin:0;
  font-size:13px;
  color:var(--muted);
}
.footer-dark-section__note{
  margin:0;
  color:var(--muted);
  line-height:1.8;
  max-width: 72ch;
}
.footer-dark-section__grid{
  display:grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap:24px;
}
.footer-dark-section__grid--three{
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.footer-dark-card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:12px;
  padding:24px;
}
.footer-dark-card--full{
  grid-column:1 / -1;
}
.footer-dark-card--stack{
  padding:28px;
}
.footer-dark-card__title{
  margin:0 0 12px;
  font-size:16px;
  color:var(--fg);
}
.footer-dark-card__list{
  margin:0;
  padding-left:18px;
  color:var(--muted);
  line-height:1.8;
}
.footer-dark-card__text{
  margin:0;
  color:var(--muted);
  line-height:1.8;
}
.footer-dark-badges{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.footer-dark-badge{
  display:inline-flex;
  align-items:center;
  padding:6px 10px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--panel2);
  color:var(--fg);
  font-size:11px;
  letter-spacing:1.6px;
  text-transform:uppercase;
}
.footer-dark-section__link{
  color:var(--fg);
  text-decoration:none;
  border-bottom:1px solid var(--fg);
  padding-bottom:2px;
  display:inline-block;
  margin-right:12px;
}
.footer-dark-section__link--cta{
  border-bottom-width:2px;
  transition: opacity 180ms ease, border-color 180ms ease;
}
.footer-dark-section__link--cta:hover{opacity:.7}
.footer-dark-section__link:hover{opacity:.8}
.footer-dark-section__sep{
  color:var(--muted);
  margin:0 6px;
}
.qr-panel{
  margin-top:10px;
  border:1px solid var(--line);
  border-radius:12px;
  padding:10px;
  background:var(--panel);
  max-width:260px;
}
.qr-panel img{width:100%; display:block}
.footer-dark-section__qr{
  position:relative;
  display:inline-block;
}
.qr-panel--hover{
  position:absolute;
  left:0;
  bottom:28px;
  opacity:0;
  visibility:hidden;
  transform: translateY(-6px) scale(2);
  transform-origin: left bottom;
  transition:opacity 160ms ease, transform 160ms ease;
  z-index:5;
}
.footer-dark-section__qr:hover .qr-panel--hover{
  opacity:1;
  visibility:visible;
  transform: translateY(-12px) scale(2);
}
@media (max-width: 900px){
  .footer-dark-section__grid{grid-template-columns:1fr}
  .footer-dark-section__grid--three{grid-template-columns:1fr}
}