/* =================================================================
   ZETT MEDICAL — "Clinical Blueprint" design system
   All-white · dental-blue · precision-instrument aesthetic
   Display: Fraunces · UI: Space Grotesk · Data: Space Mono
   ================================================================= */

:root{
  --white:#ffffff;
  --paper:#fbfcfe;
  --surface:#f3f7fd;
  --surface-2:#e9f1fb;
  --ink:#0a1a2e;
  --ink-2:#22384f;
  --muted:#586a7c;
  --muted-2:#8595a5;
  --blue:#0e63e6;
  --blue-deep:#0a47ad;
  --blue-600:#2c79f0;
  --blue-tint:#eaf2fe;
  --line:#e2eaf4;
  --line-strong:#c9d7e8;
  --blue-line:rgba(14,99,230,.26);
  --grid:rgba(14,99,230,.05);

  --f-display:"Fraunces", Georgia, "Times New Roman", serif;
  --f-sans:"Space Grotesk", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --f-mono:"Space Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --step--1:clamp(.8rem,.76rem + .18vw,.9rem);
  --step-0:clamp(1rem,.96rem + .22vw,1.1rem);
  --step-1:clamp(1.2rem,1.05rem + .7vw,1.6rem);
  --step-2:clamp(1.7rem,1.3rem + 1.9vw,2.9rem);
  --step-3:clamp(2.2rem,1.55rem + 3.2vw,4.4rem);
  --step-4:clamp(2.7rem,1.5rem + 5.4vw,6.6rem);

  --pad:clamp(1.15rem,4.5vw,5rem);
  --maxw:1320px;
  --r:10px;
  --r-sm:8px;
  --ease:cubic-bezier(.22,1,.36,1);
  --ease-io:cubic-bezier(.65,.05,.36,1);
  --shadow:0 22px 60px -34px rgba(10,26,46,.34);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scrollbar-color:var(--line-strong) var(--surface)}
::-webkit-scrollbar{width:12px;height:12px}
::-webkit-scrollbar-track{background:var(--surface)}
::-webkit-scrollbar-thumb{background:var(--line-strong);border-radius:8px;border:3px solid var(--surface)}
::-webkit-scrollbar-thumb:hover{background:var(--blue)}
body{margin:0;background:var(--white);color:var(--ink);font-family:var(--f-sans);font-size:var(--step-0);line-height:1.62;font-weight:400;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
body.is-locked{overflow:hidden}
img,svg,canvas{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer;background:none;border:0}
a,button{touch-action:manipulation}
h1,h2,h3,h4,p,ul,ol,dl,figure,blockquote{margin:0}
ul,ol{list-style:none;padding:0}
[id]{scroll-margin-top:90px}
::selection{background:var(--blue);color:#fff}
:focus-visible{outline:2px solid var(--blue);outline-offset:3px;border-radius:3px}
.skip-link{position:fixed;left:1rem;top:-100px;z-index:300;background:var(--blue);color:#fff;padding:.6rem 1rem;border-radius:6px;font-family:var(--f-mono);font-size:.8rem;transition:top .25s var(--ease)}
.skip-link:focus{top:1rem}
.mono{font-family:var(--f-mono);font-weight:400;letter-spacing:.02em}

.progress{position:fixed;top:0;left:0;height:2px;width:100%;z-index:120;pointer-events:none}
.progress i{display:block;height:100%;width:0;background:var(--blue)}

/* =================================================================
   PRELOADER
   ================================================================= */
.preloader{position:fixed;inset:0;z-index:200;background:var(--white);display:grid;place-items:center;transition:opacity .6s var(--ease),visibility .6s var(--ease)}
.preloader::before{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:42px 42px;-webkit-mask-image:radial-gradient(circle at 50% 50%,#000,transparent 70%);mask-image:radial-gradient(circle at 50% 50%,#000,transparent 70%)}
.preloader.is-done{opacity:0;visibility:hidden}
.preloader__inner{position:relative;width:min(74vw,300px);text-align:center}
.preloader__mark{width:108px;margin:0 auto 1.5rem}
.pl-arch{stroke-dasharray:160;stroke-dashoffset:160;animation:plArch 1.4s var(--ease) forwards}
.pl-brackets path{stroke-dasharray:10;stroke-dashoffset:10;animation:plArch .5s var(--ease) forwards}
.pl-brackets path:nth-child(1){animation-delay:.45s}.pl-brackets path:nth-child(2){animation-delay:.57s}
.pl-brackets path:nth-child(3){animation-delay:.69s}.pl-brackets path:nth-child(4){animation-delay:.81s}
.pl-brackets path:nth-child(5){animation-delay:.93s}
@keyframes plArch{to{stroke-dashoffset:0}}
.preloader__meta{display:flex;justify-content:space-between;align-items:baseline;font-family:var(--f-mono);font-size:.7rem;letter-spacing:.14em;color:var(--muted)}
.preloader__count{color:var(--blue)}
.preloader__bar{height:2px;background:var(--line);margin-top:.6rem;overflow:hidden}
.preloader__bar i{display:block;height:100%;width:0;background:var(--blue);transition:width .2s linear}

/* =================================================================
   NAV
   ================================================================= */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;display:flex;align-items:center;justify-content:space-between;gap:1.5rem;padding:clamp(.7rem,1.2vw,1rem) var(--pad);background:rgba(255,255,255,.7);backdrop-filter:blur(18px) saturate(1.5);-webkit-backdrop-filter:blur(18px) saturate(1.5);border-bottom:1px solid transparent;transition:transform .45s var(--ease),border-color .3s,background .3s}
.nav.is-scrolled{border-bottom-color:var(--line);background:rgba(255,255,255,.85)}
.nav.is-hidden{transform:translateY(-110%)}
.nav__brand{display:flex;align-items:center;gap:.6rem;color:var(--blue)}
.nav__mark{width:32px;height:27px}
.nav__logo{display:block;height:54px;width:auto}
.nav__word{font-family:var(--f-display);font-weight:600;letter-spacing:-.01em;font-size:1.16rem;color:var(--ink)}
.nav__word em{font-style:normal;font-family:var(--f-mono);font-weight:400;color:var(--muted-2);letter-spacing:.12em;margin-left:.4em;font-size:.58em;vertical-align:.15em}
.nav__links{display:flex;gap:clamp(.8rem,1.8vw,1.9rem)}
.nav__links a{font-family:var(--f-mono);font-size:.78rem;letter-spacing:.04em;text-transform:uppercase;color:var(--ink-2);position:relative;padding:.4rem 0;transition:color .3s}
.nav__links a::after{content:"";position:absolute;left:0;bottom:-1px;height:1.5px;width:0;background:var(--blue);transition:width .35s var(--ease)}
.nav__links a:hover,.nav__links a.is-active{color:var(--blue)}
.nav__links a:hover::after,.nav__links a.is-active::after,.nav__links a:focus-visible::after{width:100%}
.nav__cta{display:inline-flex;align-items:center;gap:.5rem;background:linear-gradient(180deg,#2478f2 0%,#0b5ada 100%);color:#fff;border-radius:var(--r-sm);padding:.62rem 1.1rem;font-family:var(--f-mono);font-size:.76rem;letter-spacing:.04em;text-transform:uppercase;box-shadow:inset 0 1px 0 rgba(255,255,255,.28);transition:gap .3s var(--ease),background .3s,box-shadow .3s,transform .3s}
.nav__clock{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.08em;color:var(--muted);white-space:nowrap;font-variant-numeric:tabular-nums}
.nav__cta svg{width:14px;height:14px}
.nav__cta:hover{gap:.72rem;background:var(--ink);transform:translateY(-1px)}
.nav__burger{display:none;width:44px;height:44px;border:1px solid var(--line-strong);border-radius:var(--r-sm);position:relative;background:#fff}
.nav__burger span{position:absolute;left:50%;top:50%;width:16px;height:1.5px;background:var(--ink);transform:translate(-50%,-50%);transition:transform .35s var(--ease),opacity .2s}
.nav__burger span:first-child{margin-top:-4px}.nav__burger span:last-child{margin-top:4px}
body.menu-open .nav__burger span:first-child{margin-top:0;transform:translate(-50%,-50%) rotate(45deg)}
body.menu-open .nav__burger span:last-child{margin-top:0;transform:translate(-50%,-50%) rotate(-45deg)}

.menu{position:fixed;inset:0;z-index:95;background:var(--white);padding:calc(var(--pad) + 4rem) var(--pad) var(--pad);display:flex;flex-direction:column;justify-content:space-between;opacity:0;transform:translateY(-1.5rem);visibility:hidden;transition:opacity .4s ease,transform .5s var(--ease),visibility 0s linear .5s}
.menu::before{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:48px 48px;pointer-events:none}
body.menu-open .menu{opacity:1;transform:none;visibility:visible;transition:opacity .4s ease,transform .55s var(--ease),visibility 0s}
.menu__nav{position:relative;display:flex;flex-direction:column;gap:.1rem;margin-top:auto}
.menu__nav a{display:flex;align-items:baseline;gap:1rem;font-family:var(--f-display);font-weight:500;font-size:clamp(2rem,11vw,3.2rem);line-height:1.12;padding:.4rem 0;border-bottom:1px solid var(--line);color:var(--ink);opacity:0;transform:translateY(18px)}
body.menu-open .menu__nav a{animation:menuIn .5s var(--ease) forwards}
body.menu-open .menu__nav a:nth-child(1){animation-delay:.1s}body.menu-open .menu__nav a:nth-child(2){animation-delay:.16s}
body.menu-open .menu__nav a:nth-child(3){animation-delay:.22s}body.menu-open .menu__nav a:nth-child(4){animation-delay:.28s}
body.menu-open .menu__nav a:nth-child(5){animation-delay:.34s}
@keyframes menuIn{to{opacity:1;transform:none}}
.menu__nav a:hover,.menu__nav a.is-active{color:var(--blue)}
.menu__idx{font-family:var(--f-mono);font-size:.78rem;color:var(--blue)}
.menu__foot{position:relative;display:flex;justify-content:space-between;flex-wrap:wrap;gap:.5rem;font-family:var(--f-mono);font-size:.66rem;letter-spacing:.1em;color:var(--muted-2);margin-top:1.5rem}

/* =================================================================
   BUTTONS  (crisp, technical)
   ================================================================= */
.btn{display:inline-flex;align-items:center;gap:.6rem;font-family:var(--f-mono);font-weight:400;font-size:.82rem;letter-spacing:.03em;text-transform:uppercase;padding:.9rem 1.4rem;border-radius:var(--r-sm);transition:transform .35s var(--ease),background .35s,color .35s,gap .3s,box-shadow .35s,border-color .35s}
.btn svg{width:15px;height:15px;transition:transform .3s var(--ease)}
.btn--solid{background:linear-gradient(180deg,#2478f2 0%,#0b5ada 100%);color:#fff;box-shadow:inset 0 1px 0 rgba(255,255,255,.28),0 10px 24px -14px rgba(14,99,230,.6)}
.btn--solid:hover{gap:.85rem;background:var(--ink);box-shadow:var(--shadow);transform:translateY(-2px)}
.btn--solid:hover svg{transform:translateX(3px)}
.btn--ghost{border:1px solid var(--line-strong);color:var(--ink)}
.btn--ghost:hover{border-color:var(--blue);color:var(--blue);transform:translateY(-2px)}

/* =================================================================
   SECTION SCAFFOLD + blueprint signatures
   ================================================================= */
.section{position:relative;padding:clamp(4rem,9vh,8rem) var(--pad)}
.section--tint{background:var(--surface)}
.section--tint2{background:var(--paper)}
.wrap{max-width:var(--maxw);margin:0 auto}
.section__head{max-width:var(--maxw);margin:0 auto 3rem}
.section__head--split{display:grid;gap:1.1rem;position:relative}
/* drawing-sheet numeral watermark (from data-fig; sections are a true sequence) */
.section__head--split::before{content:attr(data-fig);position:absolute;right:-6px;top:-.34em;z-index:-1;font-family:var(--f-display);font-weight:500;font-style:italic;font-size:clamp(6rem,13vw,11.5rem);line-height:1;color:transparent;-webkit-text-stroke:1.5px #dce7f3;pointer-events:none;user-select:none}
/* ruler divider under split heads */
.section__head--split::after{content:"";display:block;height:11px;margin-top:1.5rem;border-bottom:1px solid var(--line);background:repeating-linear-gradient(90deg,var(--line-strong) 0 1px,transparent 1px 34px);-webkit-mask-image:linear-gradient(90deg,#000 55%,transparent);mask-image:linear-gradient(90deg,#000 55%,transparent);transform:scaleX(0);transform-origin:left;transition:transform 1s var(--ease) .15s}
.section__head--split.is-in::after{transform:scaleX(1)}
.eyebrow{display:inline-flex;align-items:center;gap:.7rem;font-family:var(--f-mono);font-size:.74rem;letter-spacing:.12em;color:var(--blue);text-transform:uppercase}
.eyebrow i{font-style:normal;font-weight:700;border:1px solid var(--blue-line);border-radius:4px;padding:.12em .45em;line-height:1}
.section__title{font-family:var(--f-display);font-weight:480;font-size:var(--step-3);line-height:1.04;letter-spacing:-.02em;max-width:22ch;color:var(--ink)}
.hero__title,.section__title,.phero__title,.about__statement,.cta h2{text-wrap:balance}
.section__title em{font-style:italic;color:var(--blue);font-weight:440}
.section__lead{color:var(--muted);font-size:var(--step-1);max-width:52ch;margin-top:1.2rem;line-height:1.5}

/* [data-reveal] entrances are WAAPI-driven in app.js (content stays visible without JS) */

/* crop-mark frame for cards (reveals on hover) */
.cropmark{position:relative}
.cropmark::before,.cropmark::after{content:"";position:absolute;width:13px;height:13px;border:1.5px solid var(--blue);opacity:0;transition:opacity .35s var(--ease)}
.cropmark::before{top:7px;left:7px;border-right:0;border-bottom:0}
.cropmark::after{bottom:7px;right:7px;border-left:0;border-top:0}
.cropmark:hover::before,.cropmark:hover::after,.cropmark:focus-within::before,.cropmark:focus-within::after{opacity:1}

/* =================================================================
   HERO
   ================================================================= */
.hero{position:relative;min-height:100svh;display:flex;flex-direction:column;justify-content:center;padding:calc(var(--pad) + 3.5rem) var(--pad) var(--pad);overflow:hidden;background:radial-gradient(120% 80% at 80% 8%,var(--blue-tint) 0%,rgba(255,255,255,0) 50%),var(--white)}
.hero__canvas{position:absolute;inset:0;width:100%;height:100%;z-index:1}
.hero__grid-bg{position:absolute;inset:0;z-index:0;pointer-events:none;background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:58px 58px;-webkit-mask-image:radial-gradient(circle at 52% 42%,#000,transparent 74%);mask-image:radial-gradient(circle at 52% 42%,#000,transparent 74%)}
.hero__content{position:relative;z-index:3;max-width:min(94vw,760px)}
.hero__eyebrow{display:inline-flex;align-items:center;gap:.55rem;font-family:var(--f-mono);font-size:.74rem;letter-spacing:.08em;color:var(--blue);background:rgba(255,255,255,.6);border:1px solid var(--blue-line);padding:.4rem .85rem;border-radius:100px;margin-bottom:1.6rem;text-transform:uppercase}
.hero__eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 4px rgba(14,99,230,.16);animation:pulse 2.4s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:.5;transform:scale(.85)}50%{opacity:1;transform:scale(1.1)}}
.hero__title{font-family:var(--f-display);font-weight:480;font-size:var(--step-4);line-height:1.14;letter-spacing:-.025em;margin-bottom:1.4rem;color:var(--ink)}
.hero__title .line{display:block;overflow:hidden;padding-bottom:.1em;margin-bottom:-.2em}
.hero__title .line>span{display:block;transform:translateY(110%);transition:transform 1s var(--ease)}
.hero.is-in .hero__title .line>span{transform:none}
.hero__title em{font-style:italic;color:var(--blue);font-weight:440}
.hero__sub{max-width:48ch;color:var(--muted);font-size:var(--step-1);line-height:1.5;opacity:0;transform:translateY(16px);transition:opacity .9s var(--ease) .3s,transform .9s var(--ease) .3s}
.hero.is-in .hero__sub{opacity:1;transform:none}
.hero__actions{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:2rem;opacity:0;transform:translateY(16px);transition:opacity .9s var(--ease) .45s,transform .9s var(--ease) .45s}
.hero.is-in .hero__actions{opacity:1;transform:none}
.hero__stats{display:flex;flex-wrap:wrap;gap:clamp(1.2rem,3vw,2.8rem);margin-top:2.6rem;padding-top:1.5rem;border-top:1px solid var(--line);opacity:0;transition:opacity .9s var(--ease) .6s}
.hero.is-in .hero__stats{opacity:1}
.hero__stat + .hero__stat{border-left:1px solid var(--line);padding-left:clamp(1.2rem,3vw,2.8rem)}
.hero__stat b{display:block;font-family:var(--f-display);font-weight:520;font-size:clamp(1.6rem,3vw,2.2rem);color:var(--ink);line-height:1}
.hero__stat span{font-family:var(--f-mono);font-size:.64rem;letter-spacing:.08em;color:var(--muted);text-transform:uppercase}
/* technical hero annotations */
.hero__anno{position:absolute;z-index:3;font-family:var(--f-mono);font-size:.64rem;letter-spacing:.06em;color:var(--muted);display:flex;align-items:center;gap:.5rem;pointer-events:none}
.hero__anno::before{content:"";width:18px;height:1px;background:var(--blue-line)}
.hero__anno--tr{top:calc(var(--pad) + 4rem);right:var(--pad)}
.hero__anno--br{bottom:1.6rem;right:var(--pad)}
.hero__scroll{position:absolute;left:var(--pad);bottom:1.6rem;z-index:3;display:flex;align-items:center;gap:.6rem;font-family:var(--f-mono);font-size:.64rem;letter-spacing:.1em;color:var(--muted);text-transform:uppercase}
.hero__scroll i{position:relative;width:1px;height:34px;background:var(--line-strong);overflow:hidden}
.hero__scroll i::after{content:"";position:absolute;left:0;top:-60%;width:100%;height:60%;background:var(--blue);animation:scrolldot 2s var(--ease-io) infinite}
@keyframes scrolldot{0%{top:-60%}60%,100%{top:100%}}

/* =================================================================
   PAGE HERO
   ================================================================= */
.phero{position:relative;padding:calc(var(--pad) + 5rem) var(--pad) clamp(2.5rem,5vh,4rem);background:radial-gradient(110% 130% at 88% 0%,var(--blue-tint),rgba(255,255,255,0) 52%),var(--white);border-bottom:1px solid var(--line);overflow:hidden}
.phero__grid{position:absolute;inset:0;opacity:1;pointer-events:none;background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:54px 54px;-webkit-mask-image:linear-gradient(180deg,#000,transparent);mask-image:linear-gradient(180deg,#000,transparent)}
.phero__inner{position:relative;max-width:var(--maxw);margin:0 auto}
.crumb{display:flex;gap:.5rem;align-items:center;font-family:var(--f-mono);font-size:.72rem;letter-spacing:.04em;color:var(--muted-2);margin-bottom:1.2rem;text-transform:uppercase}
.crumb a:hover{color:var(--blue)}
.crumb span{color:var(--blue)}
.phero__title{font-family:var(--f-display);font-weight:480;font-size:var(--step-3);line-height:1.04;letter-spacing:-.02em;color:var(--ink);max-width:20ch}
.phero__lead{color:var(--muted);font-size:var(--step-1);max-width:56ch;margin-top:1.1rem;line-height:1.5}

/* =================================================================
   ABOUT
   ================================================================= */
.about__grid{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:1.45fr 1fr;gap:clamp(2rem,5vw,5rem);align-items:start}
.about__statement{font-family:var(--f-display);font-weight:460;font-size:var(--step-2);line-height:1.2;letter-spacing:-.015em;color:var(--ink)}
.about__statement em{font-style:italic;color:var(--blue);font-weight:440}
.about__statement .word{display:inline-block;opacity:.16;transition:opacity .5s var(--ease)}
.about__statement .word.is-in{opacity:1}
.about__col{display:flex;flex-direction:column;gap:1.2rem;color:var(--muted);font-size:var(--step-0);max-width:62ch}
.seal{display:flex;align-items:center;gap:1rem;margin-top:.6rem;padding:1.1rem;border:1px solid var(--line);border-radius:var(--r);background:var(--white)}
.seal svg{width:54px;height:54px;flex:none;color:var(--blue)}
.seal strong{display:block;font-family:var(--f-display);font-weight:560;color:var(--ink);font-size:1.05rem}
.seal .mono{font-size:.64rem;letter-spacing:.1em;color:var(--muted)}

/* =================================================================
   FEATURED CATEGORIES
   ================================================================= */
.feat{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(.7rem,1.2vw,1rem)}
.feat__card{position:relative;display:flex;flex-direction:column;gap:.45rem;padding:1.6rem 1.4rem 1.3rem;border:1px solid var(--line);border-radius:var(--r);background:var(--white);transition:transform .4s var(--ease),box-shadow .4s,border-color .4s;overflow:hidden}
.feat__card::after{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--blue);transform:scaleX(0);transform-origin:left;transition:transform .45s var(--ease)}
.feat__card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--blue-line)}
.feat__card:hover::after{transform:scaleX(1)}
.feat__no{font-family:var(--f-mono);font-size:.72rem;color:var(--blue)}
.feat__ic{width:42px;height:42px;display:grid;place-items:center;border-radius:10px;background:var(--blue-tint);color:var(--blue);margin-bottom:.55rem;transition:background .35s var(--ease),color .35s var(--ease)}
.feat__card:hover .feat__ic{background:var(--blue);color:#fff}
.feat__ic svg{width:23px;height:23px}
.feat__card h3{font-family:var(--f-display);font-weight:540;font-size:1.16rem;color:var(--ink)}
.feat__card p{font-size:.86rem;color:var(--muted);flex:1}
.feat__go{font-family:var(--f-mono);font-size:.7rem;letter-spacing:.04em;text-transform:uppercase;color:var(--blue);display:inline-flex;align-items:center;gap:.4rem;margin-top:.7rem}
.feat__go svg{width:13px;height:13px;transition:transform .3s}
.feat__card:hover .feat__go svg{transform:translateX(4px)}

/* =================================================================
   3D MODEL STAGE
   ================================================================= */
.model{position:relative;width:100%;border-radius:var(--r);overflow:hidden}
.model__canvas{width:100%;height:100%;display:block;cursor:grab;touch-action:pan-y}
.model__canvas:active{cursor:grabbing}
.model__hint{position:absolute;left:50%;bottom:14px;transform:translateX(-50%);display:flex;align-items:center;gap:.5rem;font-family:var(--f-mono);font-size:.66rem;letter-spacing:.06em;color:var(--muted);background:rgba(255,255,255,.85);padding:.42rem .85rem;border-radius:100px;border:1px solid var(--line);transition:opacity .5s;pointer-events:none;text-transform:uppercase}
.model__hint.is-gone{opacity:0}
.model__hint svg{width:15px;height:15px;color:var(--blue)}
.model__loading{position:absolute;inset:0;display:grid;place-items:center;background:var(--surface);transition:opacity .5s,visibility .5s}
.model__loading.is-gone{opacity:0;visibility:hidden}
.model__loading span{font-family:var(--f-mono);font-size:.72rem;color:var(--muted);letter-spacing:.08em}

.norris__grid{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:1fr 1.08fr;gap:clamp(2rem,5vw,4.5rem);align-items:center}
.norris__intro{display:flex;flex-direction:column;gap:1.15rem;color:var(--muted);font-size:var(--step-0)}
.norris__hits{display:flex;gap:clamp(1.2rem,3vw,2.6rem);margin-top:.4rem;flex-wrap:wrap}
.norris__hits li{display:flex;flex-direction:column}
.norris__hits b{font-family:var(--f-display);font-weight:520;font-size:clamp(2rem,4.4vw,3rem);color:var(--blue);line-height:1}
.norris__hits span{font-family:var(--f-mono);font-size:.62rem;letter-spacing:.06em;color:var(--muted);margin-top:.35rem;text-transform:uppercase}
.norris__note{font-family:var(--f-mono);font-size:.66rem;color:var(--muted-2)}
.norris__features{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:.2rem}
.norris__features button{font-family:var(--f-mono);font-size:.72rem;color:var(--ink-2);border:1px solid var(--line-strong);border-radius:100px;padding:.45rem .85rem;min-height:38px;transition:all .3s var(--ease)}
.norris__features button:hover{border-color:var(--blue);color:var(--blue)}
.norris__features button.is-active{background:var(--blue);color:#fff;border-color:var(--blue)}

.bracket3d{position:relative;width:100%;aspect-ratio:1/1;max-width:560px;margin-inline:auto;border:1px solid var(--line);border-radius:var(--r);background:radial-gradient(60% 60% at 50% 42%,var(--blue-tint),var(--white) 72%)}
.bracket3d::before{content:"FIG.A — NORRIS 20/26® SELF-LIGATING BRACKET";position:absolute;top:10px;left:12px;z-index:3;font-family:var(--f-mono);font-size:.6rem;letter-spacing:.08em;color:var(--muted-2)}
.bracket3d::after{content:"";position:absolute;inset:10px;border:1px solid var(--line);border-radius:6px;pointer-events:none;-webkit-mask-image:linear-gradient(180deg,transparent,transparent 22px,#000 22px);mask-image:linear-gradient(180deg,transparent,transparent 22px,#000 22px)}
.bracket3d .model__canvas{height:100%}
.hotspot{position:absolute;transform:translate(-50%,-50%);z-index:4;pointer-events:none;opacity:0;transition:opacity .3s}
.hotspot.is-shown{opacity:1;pointer-events:auto}
.hotspot__dot{width:20px;height:20px;border-radius:50%;border:2px solid var(--blue);background:rgba(255,255,255,.92);position:relative;cursor:pointer;transition:transform .25s}
.hotspot__dot::after{content:"";position:absolute;inset:3px;border-radius:50%;background:var(--blue);transform:scale(.55);transition:transform .25s}
.hotspot.is-active .hotspot__dot{transform:scale(1.25)}
.hotspot.is-active .hotspot__dot::after{transform:scale(1)}
.hotspot__dot:hover{transform:scale(1.2)}
.norris__cap{margin-top:1.4rem;padding:1.1rem 1.25rem;border:1px solid var(--line);border-left:3px solid var(--blue);border-radius:0 var(--r-sm) var(--r-sm) 0;background:var(--white)}
.norris__cap-idx{font-family:var(--f-mono);font-size:.66rem;color:var(--blue);letter-spacing:.1em}
.norris__cap-title{display:block;font-family:var(--f-display);font-weight:560;font-size:1.1rem;color:var(--ink);margin:.3rem 0}
.norris__cap-text{font-size:.86rem;color:var(--muted);line-height:1.5}

/* =================================================================
   DIGITAL FLOW
   ================================================================= */
.flow{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(1rem,2vw,1.5rem);counter-reset:f}
.flow__step{position:relative;padding:1.7rem 1.5rem;border:1px solid var(--line);border-radius:var(--r);background:var(--white);transition:transform .5s var(--ease),box-shadow .5s,border-color .5s}
.flow__step:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--blue-line)}
.flow__no{display:block;font-family:var(--f-mono);font-size:.7rem;letter-spacing:.08em;color:var(--blue);margin-bottom:2rem}
.flow__step h3{font-family:var(--f-display);font-weight:540;font-size:var(--step-1);margin-bottom:.5rem;color:var(--ink)}
.flow__step>p{color:var(--muted);font-size:.92rem;margin-bottom:1.2rem}
.spec{display:flex;flex-direction:column;gap:.45rem;border-top:1px solid var(--line);padding-top:1rem}
.spec li{display:flex;justify-content:space-between;font-family:var(--f-mono);font-size:.72rem;color:var(--ink);font-variant-numeric:tabular-nums}
.spec li span{color:var(--muted)}

/* =================================================================
   VALUES
   ================================================================= */
.why__grid{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(.7rem,1.2vw,1rem)}
.value{position:relative;background:var(--white);border:1px solid var(--line);border-radius:var(--r);padding:clamp(1.5rem,2.4vw,2.1rem);transition:transform .5s var(--ease),box-shadow .5s,border-color .5s;overflow:hidden}
.value::after{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--blue);transform:scaleX(0);transform-origin:left;transition:transform .45s var(--ease)}
.value:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:var(--blue-line)}
.value:hover::after{transform:scaleX(1)}
.value__ic{display:inline-grid;place-items:center;width:46px;height:46px;border-radius:11px;background:var(--blue-tint);color:var(--blue);margin-bottom:1.2rem;transition:background .35s var(--ease),color .35s var(--ease)}
.value:hover .value__ic{background:var(--blue);color:#fff}
.value__ic svg{width:24px;height:24px}
.value h3{font-family:var(--f-display);font-weight:540;font-size:1.18rem;margin-bottom:.5rem;color:var(--ink)}
.value p{color:var(--muted);font-size:.92rem}

.marquee{margin-top:clamp(2.5rem,6vh,4rem);overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:1rem 0;-webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.marquee__track{display:inline-flex;align-items:center;gap:2.2rem;white-space:nowrap;font-family:var(--f-display);font-style:italic;font-weight:440;font-size:clamp(1.4rem,3vw,2.3rem);color:var(--ink-2);will-change:transform;padding-right:2.2rem}
.marquee__track .sep{color:var(--blue);font-style:normal;font-size:.6em}

/* =================================================================
   CTA  (editorial, white — no gradient cliché)
   ================================================================= */
.cta{position:relative;max-width:var(--maxw);margin:0 auto;border:1px solid var(--line-strong);border-radius:var(--r);padding:clamp(2.6rem,6vw,5rem) clamp(1.5rem,5vw,4rem);background:var(--surface);overflow:hidden;text-align:center}
.cta::before{content:"";position:absolute;left:50%;bottom:-40%;width:140%;height:90%;transform:translateX(-50%);background:radial-gradient(closest-side,var(--blue-tint),transparent);opacity:.7}
.cta__arch{position:absolute;left:0;right:0;top:18%;width:100%;opacity:.5}
.cta>*{position:relative}
.cta h2{font-family:var(--f-display);font-weight:480;font-size:var(--step-2);letter-spacing:-.02em;margin:.9rem 0 1rem;color:var(--ink)}
.cta h2 em{font-style:italic;color:var(--blue);font-weight:440}
.cta p{max-width:48ch;margin:0 auto 1.8rem;color:var(--muted);font-size:var(--step-0)}

/* =================================================================
   SUPPLY ROUTE  (St. Louis -> Bursa)
   ================================================================= */
.route__panel{position:relative;max-width:var(--maxw);margin:0 auto;border:1px solid var(--line);border-radius:var(--r);background:var(--white);padding:clamp(1rem,2vw,1.6rem);overflow:hidden;box-shadow:var(--shadow)}
.route__fig{position:absolute;top:12px;left:16px;z-index:3;font-size:.62rem;letter-spacing:.08em;color:var(--muted-2)}
.route__stage{position:relative;width:100%;margin-top:.6rem}
.route__svg{width:100%;height:auto;display:block}
#routeArcFg{filter:drop-shadow(0 2px 8px rgba(14,99,230,.32))}
#routeTrail{filter:blur(2.2px)}
/* map labels live inside the SVG so they track the map at every size;
   white halo (paint-order:stroke) keeps them legible over land texture */
.route__lbl text{paint-order:stroke;stroke:#fff;stroke-linejoin:round;stroke-linecap:round}
.route__role{font-family:var(--f-mono);font-size:11.5px;letter-spacing:.12em;fill:var(--blue);stroke-width:3.5px}
.route__city{font-family:var(--f-display);font-weight:560;font-size:19px;fill:var(--ink);stroke-width:4.5px}
.route__geo{font-family:var(--f-mono);font-size:11px;letter-spacing:.05em;fill:var(--muted);stroke-width:3.5px}
.route__dist{font-family:var(--f-display);font-weight:560;font-size:22px;fill:var(--blue);stroke-width:5px}
@media (max-width:700px){
  /* corridor zoom: JS crops the viewBox to the St. Louis–Bursa corridor */
  .route__fig{display:none}
  .route__geo{display:none}
  .route__role{font-size:16px}
  .route__city{font-size:24px}
  .route__dist{font-size:27px}
  .route__pin{transform:scale(1.25);transform-box:fill-box;transform-origin:center}
}
.route__steps{max-width:var(--maxw);margin:1.6rem auto 0;display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(.7rem,1.4vw,1rem)}
.route__step{position:relative;padding:1.3rem 1.4rem;border:1px solid var(--line);border-radius:var(--r);background:var(--white);transition:transform .4s var(--ease),box-shadow .4s,border-color .4s}
.route__step:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:var(--blue-line)}
.route__step-no{display:block;font-family:var(--f-mono);font-size:.68rem;letter-spacing:.1em;color:var(--blue);margin-bottom:.7rem}
.route__step h3{font-family:var(--f-display);font-weight:540;font-size:1.06rem;color:var(--ink);margin-bottom:.4rem}
.route__step p{color:var(--muted);font-size:.88rem}

/* =================================================================
   CATALOG
   ================================================================= */
.cat-tools{position:static;z-index:40;background:var(--surface);border-bottom:1px solid var(--line);padding:1.4rem var(--pad)}
.cat-tools__inner{max-width:var(--maxw);margin:0 auto;display:flex;flex-direction:column;align-items:stretch;gap:1rem}
.cat-search{display:flex;align-items:center;gap:.6rem;background:var(--white);border:1px solid var(--line-strong);border-radius:var(--r-sm);padding:.7rem 1rem}
.cat-search svg{width:17px;height:17px;color:var(--muted)}
.cat-search input{flex:1;border:0;background:none;font-family:var(--f-sans);font-size:.95rem;color:var(--ink)}
.cat-search input:focus{outline:none}
.chips{display:flex;flex-wrap:wrap;gap:.5rem}
.chip{white-space:nowrap;font-family:var(--f-mono);font-size:.72rem;color:var(--ink-2);border:1px solid var(--line-strong);border-radius:100px;padding:.5rem .9rem;min-height:38px;transition:all .25s var(--ease)}
.chip:hover{border-color:var(--blue);color:var(--blue)}
.chip.is-active{background:var(--blue);color:#fff;border-color:var(--blue)}

.catalog{max-width:var(--maxw);margin:0 auto;padding:clamp(2.5rem,5vh,4rem) var(--pad)}
.catblock{margin-bottom:clamp(3rem,6vh,5rem);scroll-margin-top:140px}
.catblock__head{display:flex;align-items:flex-end;justify-content:space-between;gap:1rem;flex-wrap:wrap;padding-bottom:1.1rem;margin-bottom:1.6rem;border-bottom:1px solid var(--line)}
.catblock__title{display:flex;align-items:baseline;gap:.9rem}
.catblock__no{font-family:var(--f-mono);font-size:.9rem;color:var(--blue)}
.catblock__title h2{font-family:var(--f-display);font-weight:520;font-size:var(--step-2);letter-spacing:-.02em;color:var(--ink)}
.catblock__meta{font-family:var(--f-mono);font-size:.68rem;color:var(--muted);text-align:right;letter-spacing:.04em}
.catblock__desc{color:var(--muted);font-size:.95rem;max-width:64ch;margin:-.6rem 0 1.6rem}
.pgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:clamp(.7rem,1.2vw,1rem)}
.pcard{position:relative;display:flex;flex-direction:column;gap:.55rem;padding:1.3rem 1.25rem;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--white);transition:transform .35s var(--ease),box-shadow .35s,border-color .35s;overflow:hidden}
.pcard::after{content:"";position:absolute;top:0;left:0;width:3px;height:100%;background:var(--blue);transform:scaleY(0);transform-origin:top;transition:transform .4s var(--ease)}
.pcard:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--blue-line)}
.pcard:hover::after{transform:scaleY(1)}
.pcard__top{display:flex;align-items:center;justify-content:space-between;gap:.5rem}
.pcard__tag{font-family:var(--f-mono);font-size:.6rem;letter-spacing:.06em;color:var(--blue);background:var(--blue-tint);padding:.24rem .5rem;border-radius:5px;text-transform:uppercase}
.pcard__pg{font-family:var(--f-mono);font-size:.62rem;color:var(--muted-2)}
.pcard h3{font-family:var(--f-display);font-weight:540;font-size:1.08rem;color:var(--ink);line-height:1.25}
.pcard p{font-size:.84rem;color:var(--muted);flex:1;line-height:1.5}
.pcard__code{font-family:var(--f-mono);font-size:.68rem;color:var(--ink-2);padding-top:.5rem;border-top:1px solid var(--line)}
.pcard__code span{color:var(--muted-2)}
.catalog__empty{text-align:center;color:var(--muted);font-family:var(--f-mono);padding:3rem 0}

.pdfblock{background:var(--surface);border-top:1px solid var(--line)}
.pdfblock__inner{max-width:var(--maxw);margin:0 auto;padding:clamp(2.5rem,5vh,4rem) var(--pad)}
.pdfblock__head{display:flex;align-items:flex-end;justify-content:space-between;gap:1rem;flex-wrap:wrap;margin-bottom:1.5rem}
.pdf-frame{position:relative;border:1px solid var(--line-strong);border-radius:var(--r);overflow:hidden;background:#fff;box-shadow:var(--shadow)}
.pdf-frame object,.pdf-frame iframe,.pdf-frame embed{display:block;width:100%;height:min(94vh,1180px);border:0}
.pdf-fallback{display:flex;flex-direction:column;align-items:center;gap:1rem;text-align:center;padding:3rem 1.5rem;color:var(--muted)}

/* =================================================================
   CONTACT
   ================================================================= */
.contact__grid{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,4.5rem);align-items:start}
.contact__info{display:grid;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;margin-top:1.6rem}
.contact__info div{display:flex;justify-content:space-between;align-items:center;gap:1rem;background:var(--white);padding:1rem 1.15rem}
.contact__info dt{font-family:var(--f-mono);font-size:.66rem;letter-spacing:.1em;color:var(--muted);text-transform:uppercase}
.contact__info dd{font-size:.9rem;text-align:right;color:var(--ink)}
.contact__info a:hover{color:var(--blue)}
.form{display:flex;flex-direction:column;gap:1.1rem;background:var(--white);border:1px solid var(--line);border-radius:var(--r);padding:clamp(1.4rem,3vw,2.2rem);box-shadow:var(--shadow)}
.field{display:flex;flex-direction:column;gap:.4rem}
.field label{font-family:var(--f-mono);font-size:.68rem;letter-spacing:.05em;color:var(--muted);text-transform:uppercase}
.field input,.field textarea{font-family:var(--f-sans);font-size:1rem;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);padding:.78rem .9rem;transition:border-color .3s,background .3s;resize:vertical;min-height:46px}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--blue);background:#fff}
.field.is-err input,.field.is-err textarea{border-color:#e0492f}
.field__err{font-family:var(--f-mono);font-size:.66rem;color:#e0492f;min-height:.7rem}
.form__submit{align-self:flex-start;margin-top:.3rem}
.form__done{font-size:.88rem;color:var(--blue-deep);background:var(--blue-tint);border:1px solid var(--blue-line);border-radius:var(--r-sm);padding:.9rem 1.1rem}
.form__done a{color:var(--blue);border-bottom:1px solid currentColor}
.map{margin-top:1.6rem;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--surface);aspect-ratio:16/7;position:relative}
.map iframe{display:block;width:100%;height:100%;border:0}

/* =================================================================
   FOOTER
   ================================================================= */
.footer{background:var(--ink);color:#cdd9e6;padding:clamp(2.8rem,6vh,4.2rem) var(--pad) 1.8rem;position:relative;overflow:hidden}
.footer::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);background-size:54px 54px;-webkit-mask-image:radial-gradient(circle at 80% 0,#000,transparent 70%);mask-image:radial-gradient(circle at 80% 0,#000,transparent 70%)}
.footer::after{content:"";position:absolute;right:-80px;bottom:-130px;width:640px;height:540px;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 28 24'%3E%3Cpath d='M3 9 C 8 21, 20 21, 25 9' fill='none' stroke='rgba(255,255,255,.06)' stroke-width='1.1' stroke-linecap='round'/%3E%3Cg stroke='rgba(255,255,255,.06)' stroke-width='0.9' stroke-linecap='round'%3E%3Cpath d='M7.5 14.3 v3'/%3E%3Cpath d='M14 16.2 v3'/%3E%3Cpath d='M20.5 14.3 v3'/%3E%3C/g%3E%3C/svg%3E") no-repeat center/contain;pointer-events:none}
.footer__top{position:relative;max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:2rem;padding-bottom:2rem;border-bottom:1px solid rgba(255,255,255,.1)}
.footer__brand{display:flex;align-items:center;gap:.6rem;color:#fff;margin-bottom:1rem}
.footer__brand svg{width:32px;height:27px}
.footer__brand .footer__logo{width:auto;height:100px}
.footer__brand .nav__word{color:#fff}
.footer__brand .nav__word em{color:rgba(255,255,255,.5)}
.footer__about{color:#8ea3b8;font-size:.88rem;max-width:38ch}
.footer__col h4{font-family:var(--f-mono);font-size:.68rem;letter-spacing:.1em;color:#7e93a8;text-transform:uppercase;margin-bottom:1rem}
.footer__col a,.footer__col p{display:block;color:#cdd9e6;font-size:.92rem;margin-bottom:.6rem;transition:color .3s}
.footer__col a:hover{color:#fff}
.footer__btm{position:relative;max-width:var(--maxw);margin:1.5rem auto 0;display:flex;justify-content:space-between;flex-wrap:wrap;gap:.6rem;font-family:var(--f-mono);font-size:.64rem;letter-spacing:.05em;color:#6b8197}

/* =================================================================
   RESPONSIVE
   ================================================================= */
@media (max-width:1080px){
  .about__grid,.norris__grid,.contact__grid{grid-template-columns:1fr;gap:2.4rem}
  .feat{grid-template-columns:repeat(2,1fr)}
  .footer__top{grid-template-columns:1fr 1fr}
  .nav__clock{display:none}
}
@media (max-width:860px){
  .nav__links,.nav__cta{display:none}
  .nav__burger{display:block}
  .section__head--split::before{display:none}
  .flow{grid-template-columns:1fr}
  .why__grid{grid-template-columns:1fr 1fr}
  .hero__anno{display:none}
}
@media (max-width:560px){
  .why__grid,.feat{grid-template-columns:1fr}
  .footer__top{grid-template-columns:1fr}
  .pgrid{grid-template-columns:1fr}
  .contact__info dd{font-size:.82rem}
  .route__steps{grid-template-columns:1fr}
}

/* =================================================================
   REDUCED MOTION
   ================================================================= */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  .hero__title .line>span,.hero__sub,.hero__actions,.hero__stats{transform:none !important;opacity:1 !important}
  .about__statement .word{opacity:1 !important}
  .section__head--split::after{transform:scaleX(1) !important}
  .menu{transition:none !important}
}