/* PHOTO BAND — full-width image section with gradient overlay */
.photo-band{position:relative;min-height:420px;display:flex;align-items:flex-end;background:#05090d;overflow:hidden}
.photo-band .bg{position:absolute;inset:0;background-position:center 46%;background-size:cover;background-repeat:no-repeat}
.photo-band .bg::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(6,16,31,.9),rgba(6,16,31,.3) 50%,rgba(6,16,31,.12) 100%)}
.photo-band .wrap{position:relative;z-index:2;width:100%;padding:70px 28px 44px}
.photo-band .eyebrow{color:var(--cyan)}
.photo-band h2{color:#fff;font-size:clamp(1.8rem,3.6vw,3rem);letter-spacing:-.02em;margin:6px 0 var(--space-3);max-width:760px}
.photo-band p{color:rgba(255,255,255,.82);font-weight:300;max-width:620px;font-size:var(--fs-body)}
.photo-cap{position:absolute;right:22px;bottom:16px;z-index:2;font-size:var(--fs-label);color:rgba(255,255,255,.55);letter-spacing:.03em;background:rgba(0,0,0,.35);padding:5px 10px;border-radius:var(--r-pill);backdrop-filter:blur(4px)}

/* SPLIT HEAD — asymmetric two-col header: h2 left, description right */
.split-head{display:grid;grid-template-columns:.85fr 1.15fr;gap:70px;align-items:end;margin-bottom:var(--space-12)}
.split-head h2{font-size:var(--fs-display-lg);letter-spacing:-.03em}
.split-head p{color:var(--ink-2);font-weight:300;font-size:var(--fs-body)}
.dark .split-head p{color:rgba(255,255,255,.65)}

/* SUBSECTION HEAD */
.subsection-head{margin-bottom:var(--space-6)}
.subsection-head h3{font-size:var(--fs-subhead);margin:0 0 var(--space-2);color:var(--ink)}
.subsection-head p{color:var(--ink-2);font-weight:300;font-size:var(--fs-body);}
section.dark .subsection-head h3{color:#fff}
section.dark .subsection-head p{color:rgba(255,255,255,.65)}

/* SPLIT LAYOUT */
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.split h2{font-size:var(--fs-display);margin-bottom:var(--space-5)}
.split p{color:var(--ink-2);font-weight:300;margin-bottom:var(--space-4);font-size:var(--fs-body)}
.split ul{list-style:none;margin-top:var(--space-5)}
.split ul li{padding:var(--space-3) 0 var(--space-3) 30px;position:relative;font-size:var(--fs-body);color:var(--ink-2);border-bottom:1px solid rgba(0,0,0,.06)}
.split ul li::before{content:"";position:absolute;left:0;top:18px;width:11px;height:11px;background:var(--crimson);border-radius:50%}

/* STM FRAME */
.stm-frame{position:relative;border-radius:var(--r-sm);overflow:hidden;box-shadow:0 30px 70px -30px rgba(0,0,0,.5);background:#1a0d05}
.stm-frame img{width:100%;display:block}
.stm-frame .tag{position:absolute;top:var(--space-4);left:var(--space-4);background:rgba(0,0,0,.55);color:#fff;padding:6px var(--space-3);font-size:var(--fs-label);letter-spacing:.12em;text-transform:uppercase;border-radius:var(--r-sm);backdrop-filter:blur(4px)}
.stm-cap{font-size:var(--fs-caption);color:var(--gray);margin-top:14px;font-style:italic}

/* STATS GRID */
.stats{background:var(--quantum-deep);color:#fff;padding:46px 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;text-align:center}
.stat .n{font-family:'Cormorant Garamond';font-size:2.9rem;font-weight:700;color:var(--quantum);line-height:1}
.stat .l{font-size:var(--fs-caption);color:rgba(255,255,255,.7);margin-top:var(--space-2);letter-spacing:.03em}

/* SHOWCASE */
.showcase{position:relative;background:#0d0304;color:#fff;overflow:hidden}
.showcase-grid{display:grid;grid-template-columns:1fr 1fr;align-items:stretch}
.showcase-img{position:relative;min-height:560px;background:url('../images/c9-diamers.jpeg') center/cover no-repeat}
.showcase-text{padding:96px 64px;display:flex;flex-direction:column;justify-content:center}
.showcase-text .eyebrow{color:#fff;opacity:.85}
.showcase-text h2{font-size:clamp(2rem,3.6vw,2.9rem);margin:8px 0 18px;color:#fff}
.showcase-text p{color:rgba(255,255,255,.82);font-weight:300;font-size:var(--fs-body);margin-bottom:var(--space-4)}
.showcase-text .scap{font-size:var(--fs-caption);color:rgba(255,255,255,.5);font-style:italic;margin-top:var(--space-4);display:block}
.showcase-badge{display:inline-block;align-self:flex-start;margin-top:var(--space-5);border:1px solid rgba(255,255,255,.3);color:#fff;padding:6px 14px;border-radius:var(--r-pill);font-size:var(--fs-label);letter-spacing:.06em}

/* CAPABILITY GRID */
.cap-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2px;background:rgba(0,0,0,.07)}
.cap{background:#fff;padding:42px 34px;transition:var(--dur-base);position:relative}
.cap .num{font-family:'Cormorant Garamond';font-size:var(--fs-body-lg);color:var(--crimson);font-weight:700;letter-spacing:.1em}
.cap h3{font-size:var(--fs-heading);margin:var(--space-3) 0;color:var(--ink)}
.cap p{font-size:var(--fs-body);color:var(--ink-2);font-weight:300}

/* STEPS */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-10);margin-top:var(--space-5)}
.step{position:relative;padding-top:26px;border-top:2px solid var(--crimson)}
.step .k{font-family:'Cormorant Garamond';font-size:var(--fs-body);color:var(--crimson);font-weight:700;letter-spacing:.1em}
.step h3{font-size:var(--fs-body-lg);margin:8px 0 10px}
.step p{font-size:var(--fs-body);color:var(--ink-2);font-weight:300}

/* CONTACT FORM */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:64px;align-items:start}
.cinfo h2{font-size:var(--fs-display-sm);margin-bottom:var(--space-4)}
.cinfo p{color:var(--ink-2);font-weight:300;font-size:var(--fs-body);margin-bottom:28px}
.cblock{margin-bottom:28px;padding-left:var(--space-5);border-left:2px solid var(--crimson)}
.cblock h3{font-family:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;font-weight:700;font-size:var(--fs-label);letter-spacing:.14em;text-transform:uppercase;color:var(--gray);margin-bottom:6px}
.cblock a,.cblock span{font-size:var(--fs-body);color:var(--ink);font-weight:500}
.cblock a:hover{color:var(--crimson)}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:var(--space-10);box-shadow:var(--shadow)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-4)}
.field{margin-bottom:var(--space-5)}
.field label{display:block;font-size:var(--fs-caption);font-weight:600;color:var(--ink);margin-bottom:7px}
.field label .req{color:var(--crimson)}
.field input,.field select,.field textarea{width:100%;padding:13px 15px;border:1px solid rgba(0,0,0,.18);border-radius:var(--r-sm);font-family:'Inter';font-size:var(--fs-body);color:var(--ink);background:#fff;transition:var(--dur-fast)}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--crimson);box-shadow:0 0 0 3px rgba(177,17,53,.1)}
.field textarea{resize:vertical;min-height:130px}
.field .err{color:var(--crimson);font-size:var(--fs-caption);margin-top:5px;display:none}
.field.invalid .err{display:block}
.field.invalid input,.field.invalid textarea,.field.invalid select{border-color:var(--crimson)}
.submit{width:100%;font-size:var(--fs-body);padding:15px;border:0}
.form-status{margin-top:var(--space-4);padding:14px var(--space-4);border-radius:var(--r-sm);font-size:var(--fs-caption);display:none}
.form-status.ok{display:block;background:rgba(46,160,90,.1);color:var(--green);border:1px solid rgba(46,160,90,.3)}
.form-status.bad{display:block;background:rgba(177,17,53,.08);color:var(--crimson);border:1px solid rgba(177,17,53,.3)}
.privacy{font-size:var(--fs-caption);color:var(--gray);font-weight:300;margin-top:var(--space-4);line-height:1.5}

/* LEGAL PAGES */
.legal-doc{padding:70px 0 90px;background:#fff}
.legal-layout{display:grid;grid-template-columns:260px 1fr;gap:56px;align-items:start}
.legal-toc{position:sticky;top:96px;background:var(--mist);border-left:3px solid var(--crimson);padding:22px}
.legal-toc h3{font-size:var(--fs-caption);letter-spacing:.16em;text-transform:uppercase;margin-bottom:12px;color:var(--gray)}
.legal-toc a{display:block;font-size:var(--fs-caption);color:var(--ink-2);margin:9px 0}
.legal-toc a:hover{color:var(--crimson)}
.legal-content{max-width:860px}
.legal-content h2{font-size:var(--fs-display-sm);margin:42px 0 var(--space-3);color:var(--ink)}
.legal-content h2:first-child{margin-top:0}
.legal-content p,.legal-content li{font-size:var(--fs-body);color:var(--ink-2);font-weight:300;margin-bottom:var(--space-3)}
.legal-content ul{padding-left:22px;margin-bottom:18px}
.notice-box{background:#fff7f9;border-left:4px solid var(--crimson);padding:18px var(--space-5);margin:var(--space-6) 0;color:var(--ink-2)}

/* CARD */
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:var(--space-card-pad);transition:var(--dur-base)}
.card h3{font-size:var(--fs-body-lg);margin:0 0 var(--space-3)}
.card p{font-size:var(--fs-caption);color:var(--ink-2);font-weight:300;line-height:1.6}
/* CARD DARK */
.card-dark{border:1px solid rgba(255,255,255,.1);border-radius:var(--r-lg);background:rgba(255,255,255,.035);padding:var(--space-card-pad)}
.card-dark h3{color:#fff}
.card-dark p{color:rgba(255,255,255,.58);font-weight:300}
/* GRID & FLEX UTILITIES */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--space-4)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-4)}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-4)}
.grid-center{display:grid;place-items:center}
.grid-tight{display:grid;gap:2px;background:rgba(0,0,0,.07)}
/* flex patterns */
.flex{display:flex}
.flex-col{display:flex;flex-direction:column}
.flex-center{display:flex;align-items:center;justify-content:center}
.flex-between{display:flex;align-items:center;justify-content:space-between}
.flex-wrap{display:flex;flex-wrap:wrap}
.flex-start{display:flex;align-items:flex-start}
/* CALLOUT */
.callout{margin-top:var(--gap-lg);padding:var(--space-6) var(--space-8);border:1px solid var(--line);border-radius:var(--r-lg);background:var(--mist);display:flex;justify-content:space-between;align-items:center;gap:var(--space-8)}
.callout strong{display:block;font:600 1.35rem 'Cormorant Garamond',serif}
.callout span{font-size:var(--fs-caption);color:var(--gray)}
.callout .btn{white-space:nowrap}
/* BANNER */
.banner{background:var(--quantum-deep);color:#fff;padding:var(--space-16) 0}
.banner .wrap{display:grid;grid-template-columns:auto 1fr auto;gap:34px;align-items:center}
.banner .kicker{font-size:var(--fs-label);font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--cyan);margin-bottom:6px}
.banner h2{font-size:var(--fs-display-sm);color:#fff;margin:0 0 8px}
.banner p{color:rgba(255,255,255,.72);font-weight:300;max-width:640px;font-size:var(--fs-body)}
/* Light banner variant */
.banner--light{background:var(--mist);color:var(--ink)}
.banner--light .kicker{color:var(--crimson)}
.banner--light h2{color:var(--ink)}
.banner--light p{color:var(--ink-2)}
/* FILTER PILLS */
.filter-bar{display:flex;gap:10px;flex-wrap:wrap}
.filter-pill{border:1px solid rgba(0,0,0,.14);background:#fff;color:var(--ink-2);padding:9px 18px;border-radius:var(--r-pill);font:600 var(--fs-caption) Inter,sans-serif;cursor:pointer;transition:var(--dur-fast)}
.filter-pill:hover{border-color:var(--crimson);color:var(--crimson)}
.filter-pill.active{background:var(--crimson);border-color:var(--crimson);color:#fff}
/* NOTE */
.note{font-size:var(--fs-caption);color:var(--gray);font-style:italic}
section.dark .note{color:rgba(255,255,255,.55)}
/* DARK SECTION TEXT */
section.dark h2{color:#fff}
section.dark p{color:rgba(255,255,255,.65);font-weight:300}
section.dark .intro{color:rgba(255,255,255,.64);font-weight:300}

/* GALLERY — 3-col image grid with captions and lightbox trigger */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.gallery figure{position:relative;margin:0;border-radius:var(--r-md);overflow:hidden;background:#05090d;box-shadow:0 24px 50px -30px rgba(0,0,0,.7);aspect-ratio:4/3;cursor:pointer}
.gallery figure img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .6s var(--ease-standard)}
.gallery figure:hover img{transform:scale(1.05)}
.gallery figcaption{position:absolute;left:0;right:0;bottom:0;padding:34px 16px 14px;font-size:var(--fs-caption);line-height:1.45;color:#fff;background:linear-gradient(0deg,rgba(4,9,14,.92),rgba(4,9,14,0));opacity:0;transform:translateY(8px);transition:opacity .4s,transform .4s}
.gallery figure:hover figcaption,.gallery figure:focus-within figcaption{opacity:1;transform:none}
.gallery-note{margin-top:22px;font-size:var(--fs-caption);color:var(--gray);font-style:italic}

/* COMPARISON SLIDER */
.cmp-wrap{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow);max-width:520px;margin:0 auto}
.cmp-wrap img{display:block;width:100%;height:auto}
.cmp{position:relative;overflow:hidden;cursor:ew-resize;user-select:none;-webkit-user-select:none;line-height:0;touch-action:pan-y}
.cmp-base{display:block;width:100%;height:auto}
.cmp-top{position:absolute;top:0;left:0;height:100%;width:50%;overflow:hidden}
.cmp-top img{display:block;height:100%;width:auto;max-width:none}
.cmp-handle{position:absolute;top:0;bottom:0;left:50%;transform:translateX(-50%);width:2px;background:rgba(255,255,255,.85);box-shadow:0 0 10px rgba(0,0,0,.5);cursor:ew-resize;z-index:10;display:flex;align-items:center;justify-content:center}
.cmp-handle::before{content:"";position:absolute;width:44px;height:44px;background:#fff;border-radius:50%;box-shadow:0 2px 14px rgba(0,0,0,.5);top:calc(50% - 22px);left:calc(50% - 22px)}
.cmp-arrow{position:relative;z-index:1;font-size:var(--fs-body);color:var(--ink);font-weight:700;line-height:1}
.cmp-label{position:absolute;top:14px;font-size:var(--fs-label);font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:#fff;background:rgba(0,0,0,.52);padding:5px 12px;border-radius:var(--r-pill);pointer-events:none;z-index:5;backdrop-filter:blur(4px)}
.cmp-label-l{left:14px}
.cmp-label-r{right:14px}
.cmp-caption{margin-top:16px;font-size:var(--fs-caption);color:var(--gray);font-style:italic;text-align:center;line-height:1.5}

/* LIGHTBOX */
.lightbox{position:fixed;inset:0;z-index:2000;background:rgba(4,9,14,.92);backdrop-filter:blur(8px);opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s;display:flex;align-items:center;justify-content:center}
.lightbox.open{opacity:1;visibility:visible}
.lightbox-img{max-width:90vw;max-height:82vh;border-radius:var(--r-md);box-shadow:var(--shadow);object-fit:contain;transform:scale(.95);transition:transform .35s var(--ease-standard)}
.lightbox.open .lightbox-img{transform:scale(1)}
.lightbox-caption{position:absolute;bottom:24px;left:50%;transform:translateX(-50%);max-width:640px;text-align:center;font-size:var(--fs-caption);color:rgba(255,255,255,.8);font-weight:300;line-height:1.5;padding:0 20px}
.lightbox-close{position:absolute;top:20px;right:24px;width:44px;height:44px;border:0;background:rgba(255,255,255,.1);color:#fff;border-radius:50%;font-size:1.4rem;cursor:pointer;transition:var(--dur-fast);display:grid;place-items:center}
.lightbox-close:hover{background:rgba(255,255,255,.2)}
.lightbox-nav{position:absolute;top:50%;transform:translateY(-50%);width:48px;height:48px;border:0;background:rgba(255,255,255,.1);color:#fff;border-radius:50%;font-size:1.3rem;cursor:pointer;transition:var(--dur-fast);display:grid;place-items:center}
.lightbox-nav:hover{background:rgba(255,255,255,.2)}
.lightbox-prev{left:20px}
.lightbox-next{right:20px}

@media(max-width:1024px){
  .contact-grid{grid-template-columns:1fr;gap:40px}
  .form-row{grid-template-columns:1fr}
  .form-card{padding:28px}
  .split-head{grid-template-columns:1fr;gap:20px}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .callout{flex-direction:column;align-items:flex-start}
  .banner .wrap{grid-template-columns:1fr}
  .gallery{grid-template-columns:repeat(2,1fr)}
  .gallery figcaption{opacity:1;transform:none;position:static;background:rgba(4,9,14,.92);padding:12px 4px}
  .lightbox-nav{width:38px;height:38px;font-size:1.1rem}
  .lightbox-prev{left:10px}
  .lightbox-next{right:10px}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:34px}
  .cap-grid{grid-template-columns:1fr 1fr}
  .split{grid-template-columns:1fr;gap:40px}
  .steps{grid-template-columns:1fr}
  .showcase-grid{grid-template-columns:1fr}
  .showcase-img{min-height:340px}
  .showcase-text{padding:56px 28px}
}
@media(max-width:768px){
  .photo-band{min-height:360px}
  .legal-layout{grid-template-columns:1fr}
  .legal-toc{position:relative;top:auto}
}
@media(max-width:480px){
  .cap-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr 1fr}
  .grid-2{grid-template-columns:1fr}
  .grid-3{grid-template-columns:1fr}
  .grid-4{grid-template-columns:1fr}
}