/* ---- v0.3 brand skin: AI Architecture Lab identity board ---- */
body{background-color:var(--g-950);background-image:
 radial-gradient(ellipse at 20% -10%,rgba(208,110,19,.08),transparent 50%),
 repeating-linear-gradient(45deg,rgba(255,255,255,.012) 0 2px,transparent 2px 4px),
 repeating-linear-gradient(-45deg,rgba(0,0,0,.18) 0 2px,transparent 2px 4px);background-size:auto;font-variant-numeric:tabular-nums}
h1,h2,h3{font-family:var(--font-display);text-transform:uppercase;letter-spacing:.06em;font-weight:600;color:var(--ivory)}
h1{font-size:clamp(30px,4.6vw,56px);line-height:1.12;letter-spacing:.04em}h2{font-size:24px;letter-spacing:.1em}h3{font-size:15px;letter-spacing:.08em}
.tbl td,.card p,.lede{font-family:var(--font-body)}
.eyebrow,.label{font:600 12px var(--font-display);letter-spacing:.18em;color:var(--brass-hi)}
/* panels: charcoal + brass hairline + corner ornaments */
.panel{background:linear-gradient(180deg,#152225,#0E181A);border:1px solid rgba(146,105,61,.55);border-radius:var(--r);
 box-shadow:var(--bevel),0 0 0 1px rgba(0,0,0,.4),0 8px 24px rgba(0,0,0,.35)}
.panel::before{border-radius:inherit;background:
 linear-gradient(var(--brass-hi),var(--brass-hi)) top left/14px 1px no-repeat,linear-gradient(var(--brass-hi),var(--brass-hi)) top left/1px 14px no-repeat,
 linear-gradient(var(--brass-hi),var(--brass-hi)) top right/14px 1px no-repeat,linear-gradient(var(--brass-hi),var(--brass-hi)) top right/1px 14px no-repeat,
 linear-gradient(var(--brass-hi),var(--brass-hi)) bottom left/14px 1px no-repeat,linear-gradient(var(--brass-hi),var(--brass-hi)) bottom left/1px 14px no-repeat,
 linear-gradient(var(--brass-hi),var(--brass-hi)) bottom right/14px 1px no-repeat,linear-gradient(var(--brass-hi),var(--brass-hi)) bottom right/1px 14px no-repeat,
 repeating-linear-gradient(90deg,rgba(246,235,207,.012) 0 1px,transparent 1px 3px)}
.card{overflow:hidden}.card::after{content:"";position:absolute;top:10px;right:-22px;width:80px;height:12px;transform:rotate(45deg);pointer-events:none;
 background:linear-gradient(var(--saffron) 0 33%,var(--ivory) 33% 66%,var(--india-green) 66%);opacity:.85}
.card:hover{border-color:var(--brass-hi)}.card code{color:var(--brass-hi)}
/* buttons */
.btn,button{font:600 13px var(--font-body);letter-spacing:.04em;color:var(--charcoal);background:linear-gradient(180deg,#E8912E,var(--saffron) 55%,#B45E10);border:1px solid #E89A4E;border-radius:4px;box-shadow:inset 0 1px 0 rgba(255,255,255,.25),0 2px 8px rgba(208,110,19,.25)}
.btn-outline,.ghost-btn,.reqs .deny{background:transparent;color:var(--ivory);border:1px solid var(--brass-hi);box-shadow:none}
.btn-outline:hover,.ghost-btn:hover{background:rgba(191,153,108,.1)}
.seg{border-radius:4px;background:#0A1113}.seg button{border:0;color:var(--g-300)}.seg button[aria-pressed=true]{background:linear-gradient(180deg,#3a2c1c,#271d13);color:var(--ivory);box-shadow:inset 0 0 0 1px var(--brass)}
.tiers button,.layer{background:linear-gradient(180deg,#1A2729,#142124);border:1px solid rgba(146,105,61,.4);color:var(--g-200);box-shadow:none}
.tiers button[aria-pressed=true],.layer[aria-pressed=true]{border-color:var(--saffron);box-shadow:inset 3px 0 0 var(--saffron)}
input,select{border-radius:4px;border:1px solid rgba(146,105,61,.45);background:#0A1113}input:focus,select:focus{border-color:var(--saffron)}
:focus-visible{outline:2px solid var(--saffron)}
.bar i{background:var(--grad-saffron-green)}.sw:checked{background:var(--india-green)}.sw::after{background:var(--ivory)}
.k1{background:var(--saffron)}.k2{background:var(--neutral)}
.tag{color:var(--brass-hi);border-color:var(--brass)}.sample{color:var(--saffron);border-color:rgba(208,110,19,.5)}
.sec-h{border-top:0;position:relative;padding-top:var(--s6)}.sec-h::before{content:"";position:absolute;top:0;left:0;width:120px;height:2px;background:linear-gradient(90deg,var(--saffron) 0 33%,var(--ivory) 33% 66%,var(--india-green) 66%)}
.sec-h::after{content:"";position:absolute;top:0;left:132px;right:0;height:1px;background:linear-gradient(90deg,var(--brass),transparent)}
/* nav: left sidebar on desktop */
.nav{background:linear-gradient(180deg,#121E20,#0B1416);border-bottom:1px solid rgba(146,105,61,.5)}
.logo-slot{display:flex;align-items:center;gap:10px;padding:6px 0}.logo-slot .icon{width:40px;height:auto;border-radius:6px}
.logo-slot .wm{font:600 13px/1.15 var(--font-display);letter-spacing:.12em;color:var(--ivory);text-transform:uppercase}
.nav ul a{display:flex;align-items:center;gap:10px}.nav ul a svg{width:18px;height:18px;flex:none;stroke:var(--brass-hi);fill:none;stroke-width:1.4;stroke-linecap:round;stroke-linejoin:round}
.nav ul a:hover{color:var(--ivory)}.nav ul a:hover svg{stroke:var(--saffron)}
@media (min-width:1024px){
 body{padding-left:var(--side)}
 .nav{position:fixed;top:0;bottom:0;left:0;width:var(--side);border-bottom:0;border-right:1px solid rgba(146,105,61,.55);overflow-y:auto}
 .nav::after{content:"";position:absolute;left:-30px;bottom:34px;width:150px;height:14px;transform:rotate(45deg);background:linear-gradient(var(--saffron) 0 33%,var(--ivory) 33% 66%,var(--india-green) 66%);opacity:.8;pointer-events:none}
 .nav-in{flex-direction:column;align-items:stretch;height:auto;padding:var(--s6) var(--s4);gap:var(--s6)}
 .logo-slot{flex-direction:column;align-items:flex-start;padding:12px;border:1px solid rgba(146,105,61,.4);border-radius:4px}
 .logo-slot .full{display:block;width:100%;height:auto}.logo-slot .icon,.logo-slot .wm{display:none}
 .nav ul{flex-direction:column;gap:2px}.nav ul a{padding:9px 12px;border-radius:4px;border-left:2px solid transparent}
 .nav ul a:hover{background:rgba(191,153,108,.08);border-left-color:var(--saffron)}
 .strip{margin-left:auto;margin-right:auto}}
@media (max-width:1023px){.logo-slot .full{display:none}.nav-in{height:64px}}
@media (min-width:821px) and (max-width:1023px){.nav ul{gap:14px}.nav ul a svg{display:none}.nav ul a{font-size:13px}}
/* hero */
.hero{position:relative;display:grid;grid-template-columns:1.25fr .9fr;gap:var(--s8);align-items:center;padding-top:var(--s16)}
.hero .tagline{font:500 12px var(--font-display);letter-spacing:.16em;text-transform:uppercase;color:var(--brass-hi);margin-top:var(--s4)}
.hero h1 span{color:var(--saffron)}
.hero-cta{display:flex;gap:var(--s3);flex-wrap:wrap;margin-top:var(--s8)}.hero-cta a{display:inline-flex;align-items:center;padding:12px 22px}
.hero-mark{padding:var(--s6)}.hero-mark img{display:block;width:100%;height:auto;border-radius:2px}
.hero-mark::after{content:"";position:absolute;top:14px;right:-26px;width:120px;height:16px;transform:rotate(45deg);background:linear-gradient(var(--saffron) 0 33%,var(--ivory) 33% 66%,var(--india-green) 66%)}
.hero-mark{overflow:hidden}.voice{margin-top:var(--s6);display:flex;flex-wrap:wrap;gap:6px}.voice span{font:500 11px var(--font-body);letter-spacing:.12em;text-transform:uppercase;color:var(--g-300);border:1px solid rgba(146,105,61,.4);padding:3px 8px;border-radius:2px}
.signup{margin-top:var(--s6)}
@media (max-width:900px){.hero{grid-template-columns:1fr}.hero-mark{max-width:520px}}
.foot{border-top:1px solid rgba(146,105,61,.5)}
.menu-btn{background:transparent;color:var(--ivory);border:1px solid var(--brass-hi);box-shadow:none}@media(max-width:820px){.hero{padding-top:var(--s10)}}

/* v1.2 Labs background: blurred, darkened 'Brand on Environments' crop (assets/bg). Fixed layer, never animated. */
body::before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.35;
 background:linear-gradient(180deg,rgba(10,17,19,.55),rgba(10,17,19,.92) 70%),image-set(url(../assets/bg/env-1600.webp) type("image/webp"),url(../assets/bg/env-1600.jpg) type("image/jpeg")) center top/cover no-repeat}
@media (max-width:820px){body::before{background-image:linear-gradient(180deg,rgba(10,17,19,.55),rgba(10,17,19,.92) 70%),image-set(url(../assets/bg/env-800.webp) type("image/webp"),url(../assets/bg/env-800.jpg) type("image/jpeg"))}}
.hero{isolation:isolate}
.hero::before{content:"";position:absolute;inset:-16px 0 0;z-index:-1;pointer-events:none;border-radius:6px;opacity:.5;
 background:radial-gradient(ellipse at 70% 40%,rgba(217,130,31,.10),transparent 60%),linear-gradient(90deg,rgba(10,17,19,.9),rgba(10,17,19,.4)),url(../assets/bg/env-800.webp) center/cover no-repeat}
@media (prefers-reduced-data:reduce){body::before,.hero::before{background-image:none!important;content:none}}