:root{
  --tm21-bg:#07090b;
  --tm21-bg2:#0d1013;
  --tm21-panel:#111418;
  --tm21-line:#34383d;
  --tm21-text:#f4f4f1;
  --tm21-muted:#bfc3c7;
  --tm21-yellow:#f2c400;
  --tm21-max:1536px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:#202224;
  color:var(--tm21-text);
  font-family:Arial,Helvetica,sans-serif;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit}
img{display:block;max-width:100%}
.tm21-shell{width:min(var(--tm21-max),calc(100% - 64px));margin-inline:auto}

/* HEADER */
.tm21-header{
  height:102px;
  background:#050607;
  border-bottom:1px solid #1f2226;
}
.tm21-header__inner{
  height:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
}
.tm21-brand{
  display:inline-flex;
  align-items:center;
  gap:16px;
  color:#fff;
  text-decoration:none;
}
.tm21-brand img{width:66px;height:66px;object-fit:contain}
.tm21-brand__text{
  display:flex;
  flex-direction:column;
  justify-content:center;
}
.tm21-brand__text strong{
  font-family:"Arial Narrow",Arial,Helvetica,sans-serif;
  font-size:27px;
  font-weight:700;
  line-height:.95;
  letter-spacing:.01em;
}
.tm21-brand__text small{
  margin-top:8px;
  color:var(--tm21-yellow);
  font-size:10px;
  font-weight:800;
  letter-spacing:.14em;
}
.tm21-nav{display:flex;align-items:center;gap:34px}
.tm21-nav a{
  text-decoration:none;
  color:#fff;
  font-size:13px;
  font-weight:700;
  padding:18px 0 13px;
  border-bottom:3px solid transparent;
}
.tm21-nav a.is-active{border-color:var(--tm21-yellow)}
.tm21-nav a.is-external{color:var(--tm21-yellow)}
.tm21-social{display:flex;gap:13px;font-size:19px}
.tm21-menu{display:none;background:none;border:1px solid #444;color:#fff;font-size:22px}

/* MASTER LAYOUT: sidebar remains alongside EVERYTHING including about/footer */
.tm21-page{background:#202224}
.tm21-layout{
  width:min(var(--tm21-max),calc(100% - 64px));
  margin:0 auto;
  display:grid;
  grid-template-columns:minmax(0,1fr) 390px;
  align-items:stretch;
  background:var(--tm21-bg);
  border-left:1px solid #17191c;
  border-right:1px solid #17191c;
}
.tm21-main{min-width:0;background:var(--tm21-bg)}
.tm21-side{
  min-width:0;
  display:flex;
  flex-direction:column;
  border-left:1px solid var(--tm21-line);
  background:linear-gradient(180deg,#0e1012,#090b0d);
  padding:32px 28px 28px;
}

/* HERO */
.tm21-hero{
  min-height:540px;
  background-image:
    linear-gradient(90deg,rgba(4,5,6,.98) 0%,rgba(4,5,6,.89) 27%,rgba(4,5,6,.30) 50%,rgba(4,5,6,.03) 100%),
    var(--hero);
  background-size:cover;
  background-position:center;
  display:flex;
  align-items:center;
  border-bottom:1px solid var(--tm21-line);
}
.tm21-hero__content{width:55%;padding:54px 48px 58px}
.tm21-kicker{margin:0 0 22px;color:var(--tm21-yellow);font-size:11px;font-weight:900;letter-spacing:.12em}
.tm21-hero h1{
  margin:0 0 24px;
  font-family:"Arial Narrow",Arial,Helvetica,sans-serif;
  font-size:57px;
  line-height:.94;
  letter-spacing:-.025em;
  font-weight:900;
}
.tm21-hero h1 span{color:var(--tm21-yellow)}
.tm21-lead{max-width:555px;font-size:17px;line-height:1.55;color:#ededeb}
.tm21-actions{display:flex;gap:16px;margin-top:28px}
.tm21-btn{
  min-height:48px;
  padding:0 27px;
  display:inline-flex;
  align-items:center;
  border:1px solid #777c82;
  text-decoration:none;
  color:#fff;
  font-size:12px;
  font-weight:900;
}
.tm21-btn--yellow{background:var(--tm21-yellow);border-color:var(--tm21-yellow);color:#050607}

/* 3 AREAS */
.tm21-worlds{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:14px;
  padding:18px 36px 12px;
}
.tm21-world{
  position:relative;
  min-width:0;
  border:1px solid var(--tm21-line);
  background:linear-gradient(#101316,#080a0c);
}
.tm21-world__image{height:185px;overflow:hidden}
.tm21-world__image img{width:100%;height:100%;object-fit:cover}
.tm21-world__icon{
  position:absolute;
  top:160px;
  left:18px;
  width:48px;
  height:48px;
  display:grid;
  place-items:center;
  border:2px solid var(--tm21-yellow);
  border-radius:50%;
  background:#07090b;
  color:var(--tm21-yellow);
  font-size:20px;
}
.tm21-world__body{padding:30px 18px 21px}
.tm21-world h2{margin:0 0 12px;font-size:20px}
.tm21-world p{min-height:60px;margin:0 0 15px;color:#d0d3d5;font-size:12px;line-height:1.55}
.tm21-world a{color:var(--tm21-yellow);font-size:11px;font-weight:900;text-decoration:none}

/* PROJECTS: exact single row of four */
.tm21-projects{padding:18px 36px 18px}
.tm21-projects__head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  margin-bottom:13px;
}
.tm21-projects__head h2{
  margin:0;
  font-family:"Arial Narrow",Arial,Helvetica,sans-serif;
  font-size:22px;
  line-height:1;
  font-weight:400; /* REGULAR as requested */
  letter-spacing:.01em;
}
.tm21-projects__head a{
  color:var(--tm21-yellow);
  text-decoration:none;
  font-size:10px;
  font-weight:900;
}
.tm21-project-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:10px;
}
.tm21-project-grid article{
  height:145px;
  min-width:0;
  position:relative;
  border:1px solid var(--tm21-line);
  background-image:linear-gradient(0deg,rgba(0,0,0,.92),rgba(0,0,0,.04) 62%),var(--p);
  background-size:cover;
  background-position:center;
}
.tm21-project-grid article>div{
  position:absolute;
  left:12px;
  right:10px;
  bottom:10px;
  display:flex;
  flex-direction:column;
  gap:4px;
}
.tm21-project-grid small{color:var(--tm21-yellow);font-size:8px;font-weight:900}
.tm21-project-grid strong{font-size:13px;line-height:1.18}

/* ABOUT band, still inside left/main column */
.tm21-about{
  display:grid;
  grid-template-columns:.92fr 1.35fr;
  gap:36px;
  align-items:center;
  padding:30px 36px 26px;
  border-top:1px solid #202327;
  background:linear-gradient(90deg,#0d1013,#0a0c0e);
}
.tm21-eyebrow{margin:0;color:#b6bbc0;letter-spacing:.22em;font-size:10px}
.tm21-about h2{
  margin:7px 0 14px;
  font-family:"Arial Narrow",Arial,Helvetica,sans-serif;
  font-size:29px;
  line-height:1.04;
  font-weight:700;
}
.tm21-about h2 span{color:var(--tm21-yellow)}
.tm21-about__copy>p:last-child{margin:0;color:#bfc3c6;font-size:11px;line-height:1.55}
.tm21-facts{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.tm21-facts>div{
  min-height:84px;
  border:1px solid #33373b;
  background:#121518;
  padding:15px 16px;
  display:grid;
  grid-template-columns:43px 1fr;
  grid-template-rows:auto auto;
  align-items:center;
}
.tm21-facts b{grid-row:1/3;color:var(--tm21-yellow);font-size:28px}
.tm21-facts strong{color:var(--tm21-yellow);font-size:18px}
.tm21-facts span{font-size:9px;color:#aeb2b5}

/* FOOTER ONLY IN LEFT/MAIN COLUMN */
.tm21-footer{
  border-top:1px solid #202327;
  background:#050607;
  padding:27px 36px 16px;
}
.tm21-footer__grid{
  display:grid;
  grid-template-columns:1.55fr repeat(3,1fr);
  gap:42px;
}
.tm21-brand--footer{align-items:center}
.tm21-brand--footer img{width:58px;height:58px}
.tm21-brand--footer .tm21-brand__text{justify-content:center}
.tm21-brand--footer .tm21-brand__text strong{
  font-family:"Arial Narrow",Arial,Helvetica,sans-serif;
  font-size:20px;
  font-weight:400; /* REGULAR as requested */
  line-height:1;
}
.tm21-brand--footer .tm21-brand__text small{
  margin-top:7px;
  font-size:8px;
  font-weight:700;
}
.tm21-footer-social{margin-top:14px;font-size:19px}
.tm21-footer h4{margin:0 0 10px;font-size:10px;letter-spacing:.08em}
.tm21-footer a,.tm21-footer span{display:block;color:#c0c3c5;text-decoration:none;font-size:10px;line-height:1.55}
.tm21-footer__bottom{
  border-top:1px solid #15181b;
  margin-top:24px;
  padding-top:11px;
  display:flex;
  justify-content:space-between;
  color:#666;
}

/* SIDEBAR */
.tm21-side h2{
  margin:0 0 16px;
  color:var(--tm21-yellow);
  font-family:"Arial Narrow",Arial,Helvetica,sans-serif;
  font-size:20px;
}
.tm21-side>section>p{font-size:13px;line-height:1.52;color:#e0e1e2}
.tm21-side>section>p strong{display:block;margin-top:8px}
.tm21-domain{
  display:grid;
  grid-template-columns:43px 1fr;
  gap:12px;
  padding:16px;
  margin:13px 0;
  border:1px solid #363a3e;
  border-radius:4px;
  background:linear-gradient(145deg,#171a1d,#101214);
}
.tm21-domain>b{color:var(--tm21-yellow);font-size:29px}
.tm21-domain span{display:block;font-size:12px}
.tm21-domain strong{display:block;color:var(--tm21-yellow);font-size:17px;margin:4px 0 8px}
.tm21-domain p{margin:0;color:#c5c8cb;font-size:11px;line-height:1.45}
.tm21-benefits{margin-top:30px}
.tm21-benefits ul{list-style:none;padding:0;margin:0}
.tm21-benefits li{
  position:relative;
  padding:6px 0 6px 24px;
  color:#d7d8da;
  font-size:12px;
  line-height:1.4;
}
.tm21-benefits li:before{
  content:"✓";
  position:absolute;
  left:0;
  color:var(--tm21-yellow);
  font-weight:900;
}
.tm21-side-spacer{flex:1;min-height:54px}
.tm21-mission{
  min-height:112px;
  margin-top:20px;
  padding:22px 23px;
  display:grid;
  grid-template-columns:75px 1fr;
  gap:17px;
  align-items:center;
  border:1px solid #34383c;
  border-radius:4px;
  color:#777c81;
  background:linear-gradient(145deg,#111417,#0d0f11);
}
.tm21-mission__train{
  color:#676c72;
  font-size:46px;
  line-height:1;
  transform:scaleX(1.5);
  transform-origin:left center;
}
.tm21-mission span,.tm21-mission strong{
  display:block;
  font-size:12px;
  line-height:1.5;
  font-weight:400;
}
.tm21-mission strong{
  color:var(--tm21-yellow);
  font-weight:700;
}

/* Responsive */
@media(max-width:1180px){
  .tm21-layout{grid-template-columns:1fr}
  .tm21-side{border-left:0;border-top:1px solid var(--tm21-line)}
  .tm21-side-spacer{display:none}
  .tm21-nav{gap:20px}
  .tm21-hero__content{width:64%}
}
@media(max-width:900px){
  .tm21-shell,.tm21-layout{width:min(100% - 32px,var(--tm21-max))}
  .tm21-header{height:auto;padding:13px 0}
  .tm21-menu{display:block}
  .tm21-nav{
    display:none;
    position:absolute;
    top:82px;
    left:0;
    right:0;
    z-index:50;
    background:#050607;
    padding:20px 28px;
    flex-direction:column;
    align-items:flex-start;
    gap:2px;
  }
  .tm21-nav.is-open{display:flex}
  .tm21-brand img{width:52px;height:52px}
  .tm21-brand__text strong{font-size:20px}
  .tm21-brand__text small{font-size:8px}
  .tm21-hero{min-height:610px;background-position:62% center}
  .tm21-hero__content{width:100%;padding:44px 24px;background:linear-gradient(90deg,rgba(4,5,6,.96),rgba(4,5,6,.66),transparent)}
  .tm21-hero h1{font-size:44px}
  .tm21-worlds{grid-template-columns:1fr}
  .tm21-project-grid{grid-template-columns:1fr 1fr}
  .tm21-about{grid-template-columns:1fr}
  .tm21-footer__grid{grid-template-columns:1fr 1fr}
}
@media(max-width:560px){
  .tm21-worlds,.tm21-projects,.tm21-about,.tm21-footer{padding-left:18px;padding-right:18px}
  .tm21-project-grid{grid-template-columns:1fr}
  .tm21-projects__head{align-items:flex-start;flex-direction:column}
  .tm21-facts{grid-template-columns:1fr}
  .tm21-footer__grid{grid-template-columns:1fr}
  .tm21-footer__bottom{flex-direction:column;gap:6px}
  .tm21-actions{flex-wrap:wrap}
}