/* ============================================================
   EVERSTONE — "Bedrock" design system
   Navy + gold · graphics-forward · bilingual EN / ZH
   ============================================================ */

:root{
  /* palette */
  --ink:        #0b1521;
  --navy:       #0f1c2e;
  --navy-2:     #142539;
  --navy-3:     #1b3047;
  --navy-line:  rgba(201,168,106,.18);

  --gold:       #c9a86a;
  --gold-bright:#e0c489;
  --gold-deep:  #a8854a;

  --paper:      #f4f1ea;
  --paper-2:    #faf8f3;
  --white:      #ffffff;
  --stone-100:  #ece7dc;
  --stone-200:  #ddd5c6;
  --stone-300:  #c7bda9;
  --stone-500:  #8a8170;
  --stone-700:  #524d42;

  --tx-dark:    #14202e;     /* text on light */
  --tx-dark-2:  #4a5564;
  --tx-light:   #eef1f4;     /* text on dark */
  --tx-light-2: #9fb0c2;

  /* fonts */
  --serif:  "Newsreader", "Noto Serif SC", Georgia, serif;
  --sans:   "Archivo", "Noto Sans SC", system-ui, -apple-system, sans-serif;
  --cjk-serif: "Noto Serif SC", "Newsreader", serif;
  --cjk-sans:  "Noto Sans SC", "Archivo", sans-serif;

  --maxw: 1240px;
  --gutter: clamp(20px, 5vw, 72px);

  --ease: cubic-bezier(.22,.61,.36,1);
}

/* language visibility — root attribute drives it */
html[data-lang="en"] .zh{ display:none !important; }
html[data-lang="zh"] .en{ display:none !important; }
/* CJK gets its own font stacks when ZH active */
html[data-lang="zh"]{ --serif: var(--cjk-serif); --sans: var(--cjk-sans); }

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
body{
  margin:0;
  font-family:var(--sans);
  background:var(--paper);
  color:var(--tx-dark);
  font-size:17px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
html[data-lang="zh"] body{ line-height:1.85; }
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
::selection{ background:var(--gold); color:var(--navy); }

/* ---------- layout helpers ---------- */
.wrap{ max-width:var(--maxw); margin:0 auto; padding-inline:var(--gutter); }
.section{ position:relative; padding-block:clamp(72px,9vw,140px); }
.section--dark{ background:var(--navy); color:var(--tx-light); }
.section--ink{ background:var(--ink); color:var(--tx-light); }
.dark-text-light{ color:var(--tx-light); }

/* eyebrow / kicker */
.kicker{
  font-family:var(--sans);
  font-size:13px;
  font-weight:600;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--gold-deep);
  display:inline-flex; align-items:center; gap:.7em;
  margin:0 0 22px;
}
.section--dark .kicker, .section--ink .kicker{ color:var(--gold); }
html[data-lang="zh"] .kicker{ letter-spacing:.14em; font-weight:700; }
.kicker::before{
  content:""; width:34px; height:1px; background:currentColor; opacity:.6;
}
.kicker--center{ justify-content:center; }

/* headings */
.h-display{
  font-family:var(--serif);
  font-weight:430;
  line-height:1.04;
  letter-spacing:-.015em;
  margin:0;
  font-size:clamp(40px,6.6vw,86px);
}
.h2{
  font-family:var(--serif);
  font-weight:460;
  line-height:1.1;
  letter-spacing:-.01em;
  margin:0 0 28px;
  font-size:clamp(30px,4.2vw,52px);
}
html[data-lang="zh"] .h-display{ font-weight:600; letter-spacing:.01em; line-height:1.12; }
html[data-lang="zh"] .h2{ font-weight:600; letter-spacing:.01em; }
.lead{
  font-size:clamp(18px,2vw,22px);
  line-height:1.6;
  color:var(--tx-dark-2);
  max-width:62ch;
  margin:0;
}
.section--dark .lead, .section--ink .lead{ color:var(--tx-light-2); }
html[data-lang="zh"] .lead{ line-height:1.95; }

.section-head{ max-width:760px; margin-bottom:clamp(44px,5vw,72px); }
.section-head--center{ margin-inline:auto; text-align:center; }

/* gold rule / strata divider */
.strata{ display:flex; flex-direction:column; gap:4px; width:54px; }
.strata span{ height:2px; background:var(--gold); border-radius:2px; }
.strata span:nth-child(2){ width:70%; opacity:.7; }
.strata span:nth-child(3){ width:40%; opacity:.45; }

/* ============================================================
   NAV
   ============================================================ */
.nav{
  position:fixed; inset:0 0 auto 0; z-index:60;
  display:flex; align-items:center; justify-content:space-between;
  padding:18px var(--gutter);
  transition:background .4s var(--ease), padding .4s var(--ease), box-shadow .4s var(--ease), border-color .4s var(--ease);
  border-bottom:1px solid transparent;
}
.nav.is-solid{
  background:rgba(11,21,33,.82);
  backdrop-filter:blur(14px) saturate(1.2);
  -webkit-backdrop-filter:blur(14px) saturate(1.2);
  border-bottom-color:var(--navy-line);
  padding-block:13px;
}
.brand{ display:flex; align-items:center; gap:13px; color:var(--tx-light); }
.brand__mark{ width:34px; height:34px; flex:none; }
.brand__name{ display:flex; flex-direction:column; line-height:1.05; }
.brand__name b{ font-family:var(--sans); font-weight:700; letter-spacing:.18em; font-size:15px; }
html[data-lang="zh"] .brand__name b{ letter-spacing:.08em; font-size:17px; }
.brand__name span{ font-size:10.5px; letter-spacing:.2em; color:var(--gold); text-transform:uppercase; }
html[data-lang="zh"] .brand__name span{ letter-spacing:.06em; }

.nav__links{ display:flex; align-items:center; gap:30px; }
.nav__links a{
  font-size:14px; font-weight:500; color:var(--tx-light-2); position:relative;
  letter-spacing:.02em; transition:color .25s;
}
.nav__links a::after{
  content:""; position:absolute; left:0; bottom:-7px; height:2px; width:0; background:var(--gold);
  transition:width .3s var(--ease);
}
.nav__links a:hover{ color:var(--tx-light); }
.nav__links a:hover::after, .nav__links a.active::after{ width:100%; }
.nav__links a.active{ color:var(--tx-light); }

.nav__right{ display:flex; align-items:center; gap:18px; }
.lang{
  display:inline-flex; border:1px solid var(--navy-line); border-radius:999px; overflow:hidden;
  background:rgba(255,255,255,.04);
}
.lang button{
  font-family:var(--sans); font-weight:600; font-size:12.5px; letter-spacing:.05em;
  background:none; border:0; color:var(--tx-light-2); padding:7px 14px; cursor:pointer;
  transition:color .2s, background .2s;
}
.lang button.on{ background:var(--gold); color:var(--navy); }
.lang button:not(.on):hover{ color:var(--tx-light); }

.burger{ display:none; background:none; border:0; cursor:pointer; width:30px; height:24px; position:relative; }
.burger span{ position:absolute; left:0; right:0; height:2px; background:var(--tx-light); transition:.3s var(--ease); }
.burger span:nth-child(1){ top:2px; } .burger span:nth-child(2){ top:11px; } .burger span:nth-child(3){ top:20px; }
.nav.menu-open .burger span:nth-child(1){ top:11px; transform:rotate(45deg); }
.nav.menu-open .burger span:nth-child(2){ opacity:0; }
.nav.menu-open .burger span:nth-child(3){ top:11px; transform:rotate(-45deg); }

/* ============================================================
   HERO
   ============================================================ */
.hero{
  position:relative; min-height:100vh; display:flex; align-items:flex-end;
  background:radial-gradient(120% 90% at 78% 8%, #1a3047 0%, var(--navy) 46%, var(--ink) 100%);
  color:var(--tx-light); overflow:hidden;
  padding-bottom:clamp(48px,7vw,96px); padding-top:140px;
}
.hero__contours{ position:absolute; inset:0; width:100%; height:100%; opacity:.5; pointer-events:none; }
.hero__grid{
  position:absolute; inset:0; pointer-events:none; opacity:.5;
  background-image:linear-gradient(var(--navy-line) 1px,transparent 1px),linear-gradient(90deg,var(--navy-line) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(80% 70% at 70% 20%, #000 0%, transparent 75%);
  mask-image:radial-gradient(80% 70% at 70% 20%, #000 0%, transparent 75%);
}
.hero .wrap{ position:relative; width:100%; }
.hero__eyebrow{
  font-size:13px; font-weight:600; letter-spacing:.24em; text-transform:uppercase; color:var(--gold);
  display:flex; align-items:center; gap:14px; margin-bottom:30px;
}
html[data-lang="zh"] .hero__eyebrow{ letter-spacing:.14em; }
.hero__eyebrow::before{ content:""; width:48px; height:1px; background:var(--gold); opacity:.7; }
.hero h1{
  font-family:var(--serif); font-weight:430; letter-spacing:-.02em; line-height:.98;
  font-size:clamp(54px,10vw,140px); margin:0; color:#fff;
}
html[data-lang="zh"] .hero h1{ font-weight:600; letter-spacing:.02em; line-height:1.08; }
.hero h1 .em{ color:var(--gold-bright); font-style:italic; }
html[data-lang="zh"] .hero h1 .em{ font-style:normal; }
.hero__sub{
  max-width:54ch; margin:34px 0 0; font-size:clamp(17px,1.6vw,20px); line-height:1.6; color:var(--tx-light-2);
}
html[data-lang="zh"] .hero__sub{ line-height:1.9; }
.hero__ibo{
  margin-top:26px; display:inline-flex; align-items:center; gap:14px;
  font-family:var(--serif); font-style:italic; font-size:clamp(20px,2.4vw,30px); color:var(--gold-bright);
}
html[data-lang="zh"] .hero__ibo{ font-style:normal; letter-spacing:.2em; }
.hero__cta{ display:flex; flex-wrap:wrap; gap:16px; margin-top:42px; }

.btn{
  display:inline-flex; align-items:center; gap:10px; font-family:var(--sans); font-weight:600;
  font-size:15px; letter-spacing:.02em; padding:15px 26px; border-radius:2px; cursor:pointer; white-space:nowrap;
  transition:transform .25s var(--ease), background .25s, color .25s, border-color .25s; border:1px solid transparent;
}
.btn svg{ width:16px; height:16px; transition:transform .3s var(--ease); }
.btn--gold{ background:var(--gold); color:var(--navy); }
.btn--gold:hover{ background:var(--gold-bright); transform:translateY(-2px); }
.btn--gold:hover svg{ transform:translateX(4px); }
.btn--ghost{ border-color:var(--navy-line); color:var(--tx-light); }
.btn--ghost:hover{ border-color:var(--gold); color:var(--gold-bright); transform:translateY(-2px); }

/* hero stat strip */
.hero__stats{
  margin-top:clamp(48px,7vw,88px);
  display:grid; grid-template-columns:repeat(4,1fr); column-gap:24px; row-gap:34px;
  border-top:1px solid var(--navy-line); padding-top:34px;
}
.stat{ padding:0 18px 0 0; }
.stat__tick{ display:block; width:30px; height:2px; background:var(--gold); margin-bottom:22px; opacity:.9; }
.stat__num{
  font-family:var(--serif); font-size:clamp(40px,5vw,64px); font-weight:430; color:var(--gold-bright); line-height:1;
}
.stat__label{ margin-top:10px; font-size:13.5px; letter-spacing:.04em; color:var(--tx-light-2); }
html[data-lang="zh"] .stat__label{ letter-spacing:.02em; }

/* ============================================================
   ABOUT / PROFILE
   ============================================================ */
.about__grid{ display:grid; grid-template-columns:1fr 1fr; gap:clamp(36px,5vw,80px); align-items:start; }
.about__body p{ font-size:clamp(16px,1.25vw,18.5px); color:var(--tx-dark-2); margin:0 0 22px; }
.about__body p:last-child{ margin-bottom:0; }
html[data-lang="zh"] .about__body p{ line-height:2; }

.ibo-card{ background:var(--navy); color:var(--tx-light); border-radius:3px; padding:clamp(28px,3.5vw,44px); position:relative; overflow:hidden; }
.ibo-card__contours{ position:absolute; right:-40px; top:-40px; width:300px; opacity:.5; pointer-events:none; }
.ibo-card h3{ font-family:var(--sans); font-size:13px; letter-spacing:.2em; text-transform:uppercase; color:var(--gold); margin:0 0 28px; font-weight:600; position:relative; }
html[data-lang="zh"] .ibo-card h3{ letter-spacing:.1em; }
.ibo-row{ display:flex; align-items:baseline; gap:20px; padding:20px 0; border-top:1px solid var(--navy-line); position:relative; }
.ibo-row:last-child{ border-bottom:1px solid var(--navy-line); }
.ibo-row__k{ font-family:var(--serif); font-style:italic; font-size:30px; color:var(--gold-bright); flex:none; width:108px; }
html[data-lang="zh"] .ibo-row__k{ font-style:normal; font-weight:600; width:52px; font-size:34px; }
.ibo-row__t{ font-size:15.5px; color:var(--tx-light-2); }

/* ============================================================
   BUSINESS SEGMENTS
   ============================================================ */
.seg{ display:grid; grid-template-columns:minmax(0,360px) 1fr; gap:clamp(28px,4vw,68px); padding-block:clamp(40px,5vw,64px); border-top:1px solid rgba(0,0,0,.1); }
.seg:first-of-type{ border-top:0; }
.section--dark .seg{ border-top-color:var(--navy-line); }
.seg__no{ font-family:var(--serif); font-size:clamp(64px,8vw,120px); line-height:.8; color:var(--gold); opacity:.9; }
.seg__head h3{ font-family:var(--sans); font-size:13px; font-weight:600; letter-spacing:.18em; text-transform:uppercase; color:var(--gold-deep); margin:18px 0 16px; }
html[data-lang="zh"] .seg__head h3{ letter-spacing:.08em; }
.section--dark .seg__head h3{ color:var(--gold); }
.seg__head .seg__title{ font-family:var(--serif); font-size:clamp(24px,2.6vw,32px); font-weight:450; line-height:1.18; margin:0; letter-spacing:-.01em; }
html[data-lang="zh"] .seg__head .seg__title{ font-weight:600; letter-spacing:.01em; }
.seg__desc{ color:var(--tx-dark-2); margin:0 0 26px; font-size:16px; }
.section--dark .seg__desc{ color:var(--tx-light-2); }
html[data-lang="zh"] .seg__desc{ line-height:1.95; }

.sub-label{ font-family:var(--sans); font-size:12px; font-weight:600; letter-spacing:.16em; text-transform:uppercase; color:var(--stone-500); margin:0 0 16px; }
html[data-lang="zh"] .sub-label{ letter-spacing:.06em; }
.section--dark .sub-label{ color:var(--tx-light-2); }

.chips{ display:flex; flex-wrap:wrap; gap:9px; margin:0 0 34px; }
.chip{
  font-size:13.5px; padding:8px 14px; border:1px solid rgba(20,32,46,.16); border-radius:2px;
  color:var(--tx-dark-2); background:var(--paper-2); transition:border-color .2s, color .2s, background .2s;
}
.chip:hover{ border-color:var(--gold); color:var(--tx-dark); }
.section--dark .chip{ border-color:var(--navy-line); color:var(--tx-light-2); background:rgba(255,255,255,.02); }
.section--dark .chip:hover{ border-color:var(--gold); color:var(--gold-bright); }

.subgrid{ display:grid; grid-template-columns:1fr 1fr; gap:1px; background:rgba(20,32,46,.12); border:1px solid rgba(20,32,46,.12); }
.section--dark .subgrid{ background:var(--navy-line); border-color:var(--navy-line); }
.subgrid__cell{ background:var(--paper); padding:24px 26px; }
.section--dark .subgrid__cell{ background:var(--navy); }
.subgrid__cell h4{ font-family:var(--serif); font-size:20px; font-weight:480; margin:0 0 10px; display:flex; align-items:baseline; gap:12px; }
html[data-lang="zh"] .subgrid__cell h4{ font-weight:600; }
.subgrid__cell h4 i{ font-family:var(--sans); font-style:normal; font-size:12px; color:var(--gold-deep); font-weight:700; }
.section--dark .subgrid__cell h4 i{ color:var(--gold); }
.subgrid__cell p{ margin:0; font-size:14.5px; color:var(--tx-dark-2); line-height:1.55; }
.section--dark .subgrid__cell p{ color:var(--tx-light-2); }
html[data-lang="zh"] .subgrid__cell p{ line-height:1.85; }

/* ============================================================
   NETWORK MAP
   ============================================================ */
.netwrap{ display:grid; grid-template-columns:1fr; gap:36px; }
.mapframe{ position:relative; border:1px solid var(--navy-line); border-radius:4px; background:linear-gradient(160deg,#102134,#0b1521); overflow:hidden; }
.mapframe__grid{
  position:absolute; inset:0; opacity:.4;
  background-image:linear-gradient(var(--navy-line) 1px,transparent 1px),linear-gradient(90deg,var(--navy-line) 1px,transparent 1px);
  background-size:48px 48px;
}
.mapframe svg{ position:relative; width:100%; height:auto; display:block; }
.legend{ display:flex; flex-wrap:wrap; gap:26px; }
.legend__item{ display:flex; align-items:center; gap:10px; font-size:14px; color:var(--tx-light-2); }
.legend__dot{ width:13px; height:13px; border-radius:50%; flex:none; }
.legend__dot.hub{ background:var(--gold-bright); box-shadow:0 0 0 4px rgba(224,196,137,.18); }
.legend__dot.member{ background:#6fa8dc; }
.legend__dot.radiate{ background:transparent; border:1.5px dashed var(--stone-500); }

/* map node interactivity */
.node-dot{ cursor:pointer; transition:r .25s var(--ease); }
.node-grp:hover .node-dot{ r:9; }
.node-grp:hover .node-label{ opacity:1; }
.node-label{ transition:opacity .25s; }

/* ============================================================
   MEMBERS
   ============================================================ */
.members__grid{ display:grid; grid-template-columns:repeat(2,1fr); gap:1px; background:rgba(20,32,46,.12); border:1px solid rgba(20,32,46,.12); }
.mcard{
  background:var(--paper-2); padding:clamp(26px,3vw,40px); position:relative;
  transition:background .3s var(--ease); display:flex; flex-direction:column;
}
.mcard:hover{ background:var(--white); }
.mcard__top{ display:flex; align-items:flex-start; justify-content:space-between; gap:16px; margin-bottom:20px; }
.mcard__country{ display:flex; align-items:center; gap:11px; }
.mcard__flag{ font-family:var(--serif); font-size:13px; font-weight:700; letter-spacing:.12em; text-transform:uppercase; color:var(--gold-deep); }
.mcard__no{ font-family:var(--serif); font-size:15px; color:var(--stone-300); }
.mcard h3{ font-family:var(--serif); font-size:clamp(20px,1.9vw,25px); font-weight:470; line-height:1.22; margin:0 0 8px; letter-spacing:-.01em; }
html[data-lang="zh"] .mcard h3{ font-weight:600; letter-spacing:.01em; }
.mcard__role{ font-size:13px; font-weight:600; letter-spacing:.04em; color:var(--gold-deep); margin:0 0 18px; }
.mcard__desc{ font-size:14.5px; color:var(--tx-dark-2); margin:0 0 22px; line-height:1.6; }
html[data-lang="zh"] .mcard__desc{ line-height:1.9; }
.mcard__proj{ margin-top:auto; padding-top:18px; border-top:1px solid rgba(20,32,46,.1); }
.mcard__proj span{ display:block; font-size:11px; font-weight:600; letter-spacing:.14em; text-transform:uppercase; color:var(--stone-500); margin-bottom:8px; }
html[data-lang="zh"] .mcard__proj span{ letter-spacing:.05em; }
.mcard__proj p{ margin:0; font-size:13.5px; color:var(--tx-dark); line-height:1.55; }
html[data-lang="zh"] .mcard__proj p{ line-height:1.8; }

/* ============================================================
   ADVANTAGES
   ============================================================ */
.adv__grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--navy-line); border:1px solid var(--navy-line); }
.adv{ background:var(--navy); padding:clamp(28px,3vw,42px); transition:background .3s; }
.adv:hover{ background:var(--navy-2); }
.adv__no{ font-family:var(--serif); font-size:15px; color:var(--gold); letter-spacing:.05em; margin-bottom:22px; display:flex; align-items:center; gap:12px; }
.adv__no::after{ content:""; flex:1; height:1px; background:var(--navy-line); }
.adv h3{ font-family:var(--serif); font-size:clamp(20px,1.9vw,24px); font-weight:470; line-height:1.25; margin:0 0 14px; color:#fff; }
html[data-lang="zh"] .adv h3{ font-weight:600; }
.adv p{ margin:0; font-size:14.5px; color:var(--tx-light-2); line-height:1.6; }
html[data-lang="zh"] .adv p{ line-height:1.9; }

/* ============================================================
   OUTLOOK
   ============================================================ */
.outlook__head{ max-width:880px; margin:0 auto clamp(48px,5vw,72px); text-align:center; }
.outlook__head .h2{ font-size:clamp(28px,3.6vw,46px); }
.outlook__body{ max-width:760px; margin:0 auto clamp(48px,5vw,68px); text-align:center; }
.outlook__body p{ font-size:clamp(16px,1.4vw,19px); color:var(--tx-light-2); margin:0 0 20px; }
html[data-lang="zh"] .outlook__body p{ line-height:1.95; }
.pillars{ display:grid; grid-template-columns:repeat(4,1fr); gap:18px; }
.pillar{
  border:1px solid var(--navy-line); border-radius:3px; padding:30px 24px; text-align:center;
  position:relative; transition:border-color .3s, transform .3s var(--ease); background:rgba(255,255,255,.015);
}
.pillar:hover{ border-color:var(--gold); transform:translateY(-4px); }
.pillar__i{ font-family:var(--serif); font-size:26px; color:var(--gold); margin-bottom:14px; }
.pillar p{ margin:0; font-size:15.5px; color:var(--tx-light); line-height:1.4; font-weight:500; }

/* ============================================================
   CONTACT / FOOTER
   ============================================================ */
.footer{ background:var(--ink); color:var(--tx-light); position:relative; overflow:hidden; }
.footer__contours{ position:absolute; left:0; bottom:0; width:60%; opacity:.4; pointer-events:none; }
.footer__top{ display:grid; grid-template-columns:1.1fr 1fr; gap:clamp(40px,6vw,90px); padding-block:clamp(64px,8vw,110px); position:relative; }
.footer h2{ font-family:var(--serif); font-size:clamp(32px,4vw,56px); font-weight:440; line-height:1.05; margin:18px 0 0; color:#fff; }
html[data-lang="zh"] .footer h2{ font-weight:600; }
.contact-grid{ display:grid; grid-template-columns:1fr 1fr; gap:1px; background:var(--navy-line); border:1px solid var(--navy-line); align-self:start; }
.contact-cell{ background:var(--ink); padding:24px 26px; }
.contact-cell span{ display:block; font-size:11.5px; font-weight:600; letter-spacing:.14em; text-transform:uppercase; color:var(--gold); margin-bottom:9px; }
html[data-lang="zh"] .contact-cell span{ letter-spacing:.05em; }
.contact-cell p{ margin:0; font-size:16px; color:var(--tx-light); }
.footer__bar{ border-top:1px solid var(--navy-line); padding-block:26px; display:flex; align-items:center; justify-content:space-between; gap:20px; flex-wrap:wrap; position:relative; }
.footer__bar .brand__name b{ color:var(--tx-light); }
.footer__legal{ font-size:13px; color:var(--tx-light-2); }
.footer__tag{ font-size:13px; color:var(--gold); letter-spacing:.04em; }

/* ============================================================
   reveal — DISABLED hiding for robustness (content visible by default).
   Classes kept as harmless no-ops so markup/JS need no changes.
   ============================================================ */
.reveal{ opacity:1; transform:none; }
.reveal.in{ opacity:1; transform:none; }
@media (prefers-reduced-motion: reduce){ html{ scroll-behavior:auto; } }

/* ============================================================
   TWEAK VARIANTS — display type, hero backdrop (driven by <html> attrs)
   ============================================================ */
html[data-display="sans"] .h-display,
html[data-display="sans"] .hero h1,
html[data-display="sans"] .h2,
html[data-display="sans"] .seg__title,
html[data-display="sans"] .stat__num,
html[data-display="sans"] .seg__no,
html[data-display="sans"] .mcard h3,
html[data-display="sans"] .adv h3,
html[data-display="sans"] .pillar__i,
html[data-display="sans"] .footer h2,
html[data-display="sans"] .subgrid__cell h4,
html[data-display="sans"] .ibo-row__k,
html[data-display="sans"] .mcard__flag,
html[data-display="sans"] .hero__ibo{
  font-family:var(--sans); font-weight:600; letter-spacing:-.012em; font-style:normal;
}
html[data-display="sans"] .hero h1{ letter-spacing:-.03em; }

html[data-hero="grid"] .hero__contours{ opacity:0; }
html[data-hero="minimal"] .hero__contours{ opacity:0; }
html[data-hero="minimal"] .hero__grid{ opacity:0; }

/* ============================================================
   TWEAKS ROOT — host-driven panel island
   ============================================================ */
#tweaks-root{ position:fixed; z-index:90; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:1080px){
  .nav__links{ gap:22px; }
}
@media (max-width:900px){
  body{ font-size:16px; }
  .nav__links{
    position:fixed; inset:0 0 auto 0; top:0; flex-direction:column; align-items:flex-start; gap:6px;
    background:rgba(11,21,33,.97); backdrop-filter:blur(16px); padding:96px var(--gutter) 36px;
    transform:translateY(-100%); transition:transform .45s var(--ease); height:auto; box-shadow:0 30px 60px rgba(0,0,0,.4);
  }
  .nav.menu-open .nav__links{ transform:translateY(0); }
  .nav__links a{ font-size:20px; padding:10px 0; color:var(--tx-light); }
  .nav__links a::after{ bottom:2px; }
  .burger{ display:block; }
  .about__grid{ grid-template-columns:1fr; }
  .seg{ grid-template-columns:1fr; gap:18px; }
  .seg__no{ font-size:60px; }
  .hero__stats{ grid-template-columns:1fr 1fr; }
  .members__grid{ grid-template-columns:1fr; }
  .adv__grid{ grid-template-columns:1fr; }
  .subgrid{ grid-template-columns:1fr; }
  .footer__top{ grid-template-columns:1fr; }
  .pillars{ grid-template-columns:1fr 1fr; }
  .contact-grid{ grid-template-columns:1fr; }
}
@media (max-width:560px){
  .hero__stats{ grid-template-columns:1fr; row-gap:26px; }
  .pillars{ grid-template-columns:1fr; }
  .contact-grid{ grid-template-columns:1fr; }
  :root{ --gutter:20px; }
}