/* ==========================================================================
   DEPTH — dimensional surfaces, specular gloss, 3D interaction
   Sits on top of styles.css and futuristic.css. Degrades cleanly without JS.
   ========================================================================== */
:root{
  --d-sheen: linear-gradient(180deg,rgba(255,255,255,.9),rgba(255,255,255,.42) 38%,rgba(255,255,255,0) 62%);
  --d-sheen-dk: linear-gradient(180deg,rgba(255,255,255,.14),rgba(255,255,255,.05) 40%,rgba(255,255,255,0) 65%);
  --d-lift1: 0 1px 2px rgba(23,20,21,.05), 0 3px 8px -3px rgba(23,20,21,.09);
  --d-lift2: 0 2px 4px rgba(23,20,21,.05), 0 10px 26px -10px rgba(23,20,21,.16), 0 28px 56px -28px rgba(23,20,21,.18);
  --d-lift3: 0 3px 6px rgba(23,20,21,.06), 0 18px 42px -14px rgba(23,20,21,.22), 0 48px 88px -40px rgba(23,20,21,.26);
  --d-ring: inset 0 1px 0 rgba(255,255,255,.85), inset 0 0 0 1px rgba(23,20,21,.045);
  --d-ring-dk: inset 0 1px 0 rgba(255,255,255,.13), inset 0 0 0 1px rgba(255,255,255,.055);
}

/* ---------- ambient field behind heroes ---------- */
.hero,.section--tight:first-of-type{position:relative;isolation:isolate}
.hero{overflow-x:hidden;overflow-x:clip}
.hero::before,.hero::after{content:"";position:absolute;z-index:-1;border-radius:50%;pointer-events:none;
  filter:blur(66px);will-change:transform}
.hero::before{width:46vw;height:46vw;max-width:620px;max-height:620px;top:-16%;inset-inline-end:-10%;opacity:.7;
  background:radial-gradient(circle at 34% 32%,rgba(210,53,62,.4),rgba(181,50,58,.14) 42%,transparent 66%);
  animation:dDrift1 22s ease-in-out infinite alternate}
.hero::after{width:34vw;height:34vw;max-width:450px;max-height:450px;bottom:-20%;inset-inline-start:-8%;opacity:.55;
  background:radial-gradient(circle at 58% 52%,rgba(79,37,39,.32),rgba(181,50,58,.09) 46%,transparent 70%);
  animation:dDrift2 28s ease-in-out infinite alternate}
@keyframes dDrift1{from{transform:translate3d(0,0,0) scale(1)}to{transform:translate3d(-4%,5%,0) scale(1.09)}}
@keyframes dDrift2{from{transform:translate3d(0,0,0) scale(1)}to{transform:translate3d(5%,-4%,0) scale(1.12)}}
.hero>.wrap{position:relative;z-index:1}

/* grain over dark sections so flats never look plasticky */
.section--ink{position:relative;isolation:isolate}
.section--ink::after{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;opacity:.5;
  background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);background-size:3px 3px}

/* ---------- frosted header ---------- */
.site-head{backdrop-filter:saturate(180%) blur(16px);-webkit-backdrop-filter:saturate(180%) blur(16px);
  box-shadow:0 1px 0 rgba(23,20,21,.07), 0 8px 28px -22px rgba(23,20,21,.4)}

/* ---------- glossy buttons ---------- */
.btn{position:relative;overflow:hidden;transform:translateZ(0);
  transition:transform .2s cubic-bezier(.2,.7,.3,1), box-shadow .2s ease, background .2s ease}
.btn::before{content:"";position:absolute;inset:0 0 auto;height:52%;border-radius:inherit;
  background:var(--d-sheen-dk);pointer-events:none;opacity:.9}
.btn--primary{background-image:linear-gradient(180deg,#d2353e,#b5323a 52%,#a32c34);
  box-shadow:var(--d-lift1), inset 0 1px 0 rgba(255,255,255,.3), inset 0 -1px 0 rgba(0,0,0,.16)}
.btn--primary:hover{transform:translateY(-2px);
  box-shadow:0 10px 24px -10px rgba(181,50,58,.6), 0 2px 6px rgba(23,20,21,.1), inset 0 1px 0 rgba(255,255,255,.34)}
.btn--primary:active{transform:translateY(0);box-shadow:inset 0 2px 5px rgba(0,0,0,.24)}
.btn--light{background-image:linear-gradient(180deg,#fff,#f4f1f1);
  box-shadow:var(--d-lift1), inset 0 1px 0 #fff, inset 0 -1px 0 rgba(0,0,0,.06)}
.btn--light:hover{transform:translateY(-2px);box-shadow:var(--d-lift2), inset 0 1px 0 #fff}
.btn--ghost{background:rgba(255,255,255,.62);backdrop-filter:blur(8px);box-shadow:var(--d-ring)}
.btn--ghost:hover{transform:translateY(-2px);box-shadow:var(--d-lift1), var(--d-ring)}
.btn--ghost::before{background:var(--d-sheen);opacity:.5}
.btn--outline-light{backdrop-filter:blur(8px);background:rgba(255,255,255,.05)}
.btn--outline-light:hover{background:rgba(255,255,255,.12);transform:translateY(-2px)}

/* ---------- dimensional cards with cursor-tracked specular ---------- */
.card,.pillar,.solution,.mod,.caps__item,.office,.module,.step{
  position:relative;transform-style:preserve-3d;
  transition:transform .32s cubic-bezier(.2,.7,.3,1), box-shadow .32s ease, border-color .2s ease}
.card,.pillar,.solution,.office,.step{box-shadow:var(--d-lift1), var(--d-ring)}
.card::after,.pillar::after,.solution::after,.mod::after,.step::after,.module::after{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;opacity:0;
  transition:opacity .3s ease;
  background:radial-gradient(420px circle at var(--mx,50%) var(--my,0%),
    rgba(255,255,255,.55),rgba(255,255,255,.16) 38%,transparent 62%)}
.card:hover::after,.pillar:hover::after,.solution:hover::after,.mod:hover::after,
.step:hover::after,.module:hover::after{opacity:1}
.section--ink .card::after,.section--ink .pillar::after,.section--ink .step::after{
  background:radial-gradient(420px circle at var(--mx,50%) var(--my,0%),
    rgba(255,255,255,.16),rgba(255,255,255,.05) 40%,transparent 64%)}
.tilt-on{will-change:transform}
.tilt-on:hover{box-shadow:var(--d-lift3), var(--d-ring)}
.section--ink .tilt-on:hover{box-shadow:var(--d-lift3), var(--d-ring-dk)}

/* top edge highlight */
.card::before,.pillar::before,.step::before{content:"";position:absolute;inset:0 0 auto;height:1px;border-radius:inherit;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.95) 22%,rgba(255,255,255,.95) 78%,transparent);
  pointer-events:none}
.section--ink .card::before,.section--ink .pillar::before,.section--ink .step::before{
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.16) 22%,rgba(255,255,255,.16) 78%,transparent)}

/* card links must never underline */
a.card,a.card:hover,a.card:hover *,a.solution,a.solution:hover,a.solution:hover *{text-decoration:none}
a.card:hover h3,a.card:hover .card__more{color:#b5323a}

/* ---------- raised console ---------- */
.console{box-shadow:0 2px 4px rgba(23,20,21,.2), 0 22px 48px -18px rgba(23,20,21,.6),
  0 54px 96px -50px rgba(23,20,21,.7), var(--d-ring-dk);
  transform:perspective(1400px) rotateX(1.4deg) rotateY(-1.6deg);
  transition:transform .5s cubic-bezier(.2,.7,.3,1)}
.console:hover{transform:perspective(1400px) rotateX(0) rotateY(0) translateY(-3px)}

/* ---------- stat band, CTA, tables ---------- */
.stats{box-shadow:var(--d-lift1)}
.stats>div{position:relative;transition:transform .28s cubic-bezier(.2,.7,.3,1), background .28s ease}
.stats>div::before{content:"";position:absolute;inset:0 0 auto;height:44%;background:var(--d-sheen);opacity:.6;pointer-events:none}
.stats>div:hover{transform:translateY(-3px);background:linear-gradient(180deg,#fff,#fbf7f7)}
.cta{position:relative;overflow:hidden;
  background-image:linear-gradient(152deg,#2b2526,#171415 55%,#0f0d0e);
  box-shadow:0 24px 60px -30px rgba(23,20,21,.68), var(--d-ring-dk)}
.cta::before{content:"";position:absolute;width:420px;height:420px;border-radius:50%;top:-190px;inset-inline-end:-120px;
  pointer-events:none;filter:blur(10px);
  background:radial-gradient(circle,rgba(210,53,62,.4),rgba(210,53,62,.07) 52%,transparent 72%)}
.cta>*{position:relative}
.tbl-wrap{box-shadow:var(--d-lift1);border-radius:16px;overflow:hidden}
.mods{box-shadow:var(--d-lift1)}
.mod:hover{transform:translateY(-3px);box-shadow:var(--d-lift2);z-index:2}
.compliance>div{transition:transform .28s cubic-bezier(.2,.7,.3,1)}
.compliance>div:hover{transform:translateY(-3px)}

/* ---------- form inputs ---------- */
.field input,.field select,.field textarea{
  box-shadow:inset 0 1px 2px rgba(23,20,21,.05), inset 0 0 0 1px rgba(23,20,21,.03);
  transition:box-shadow .18s ease,border-color .18s ease}
.field input:focus,.field select:focus,.field textarea:focus{
  box-shadow:0 0 0 3px rgba(181,50,58,.14), inset 0 1px 2px rgba(23,20,21,.04)}

/* ---------- footer sheen ---------- */
.site-foot{position:relative;isolation:isolate;background-image:linear-gradient(180deg,#1d1819,#171415 40%)}
.site-foot::before{content:"";position:absolute;inset:0 0 auto;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.12) 30%,rgba(255,255,255,.12) 70%,transparent)}

/* ---------- reveal gains depth ---------- */
.reveal{transform:translateY(16px) scale(.995)}
.reveal.is-in{transform:none}

/* ---------- accessibility & small screens ---------- */
@media (prefers-reduced-motion:reduce){
  .hero::before,.hero::after{animation:none}
  .console,.console:hover{transform:none}
  .btn:hover,.card:hover,.mod:hover,.stats>div:hover,.compliance>div:hover{transform:none}
  .tilt-on{transform:none!important}
}
@media (max-width:820px){
  .console{transform:none}
  .tilt-on{transform:none!important}
  .hero::before,.hero::after{opacity:.32}
}