/* ===== RESET & VARIABLES ===== */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg:#0A0A0B;
  --surface:#141416;
  --surface2:#1E1E20;
  --text:#F5F2ED;
  --text2:#8A8A8E;
  --text3:#5A5A5E;
  --accent:#C97B3B;
  --accent2:#D48A4E;
  --accent-bg:rgba(201,123,59,0.08);
  --border:#2A2A2C;
  --nav-h:80px;
}
html{scroll-behavior:smooth;font-size:16px}
body{
  font-family:'Inter',system-ui,-apple-system,sans-serif;
  font-weight:400;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  line-height:1.6;
}
h1,h2,h3,h4{font-family:'Space Grotesk',system-ui,sans-serif;font-weight:500;letter-spacing:-0.02em}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

/* ===== PRELOADER ===== */
#preloader{
  position:fixed;inset:0;z-index:9999;background:var(--bg);
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  transition:opacity .5s ease,visibility .5s ease;
}
#preloader.done{opacity:0;visibility:hidden;pointer-events:none}
#preloader-num{
  font-family:'Space Grotesk',system-ui,sans-serif;
  font-size:clamp(3.5rem,10vw,8rem);font-weight:500;color:#fff;line-height:1;
}
#preloader-label{
  font-family:'JetBrains Mono',monospace;font-size:.6875rem;
  letter-spacing:.2em;text-transform:uppercase;color:var(--text);margin-top:1rem;
}

/* ===== NAVIGATION ===== */
#navbar{
  position:fixed;top:0;left:0;right:0;z-index:1000;height:var(--nav-h);
  padding:0 clamp(1.5rem,4vw,4rem);display:flex;align-items:center;justify-content:space-between;
  background:rgba(10,10,11,0.85);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;transition:background .3s,border-color .3s;
}
#nav-logo{display:flex;flex-direction:column;gap:2px}
#logo-main{
  font-family:'Space Grotesk',system-ui,sans-serif;font-size:clamp(1rem,1.3vw,1.4rem);
  font-weight:500;letter-spacing:.1em;text-transform:uppercase;color:var(--text);
}
#logo-sub{
  font-family:'Inter',system-ui,sans-serif;font-size:.6rem;letter-spacing:.04em;
  color:var(--text2);max-width:320px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
#nav-links{display:flex;align-items:center;gap:clamp(1rem,2vw,2rem)}
#nav-links a{
  font-size:clamp(.6875rem,.8vw,.8125rem);font-weight:400;
  letter-spacing:.06em;text-transform:uppercase;color:var(--text2);
  transition:color .3s;white-space:nowrap;
}
#nav-links a:hover{color:var(--text)}

/* Language selector */
#lang-wrap{position:relative}
#lang-btn{
  display:flex;align-items:center;gap:5px;padding:5px 12px;
  background:var(--surface2);border:1px solid var(--border);border-radius:100px;
  color:var(--text);font-size:.75rem;font-weight:500;cursor:pointer;transition:border-color .3s;
  font-family:inherit;
}
#lang-btn:hover{border-color:var(--accent)}
#lang-dropdown{
  position:absolute;top:calc(100% + 6px);right:0;min-width:160px;
  background:var(--surface2);border:1px solid var(--border);border-radius:6px;
  padding:5px;display:none;box-shadow:0 8px 32px rgba(0,0,0,0.5);
}
#lang-dropdown.open{display:block}
.lang-opt{
  display:flex;align-items:center;gap:10px;width:100%;padding:7px 10px;
  background:none;border:none;border-radius:4px;color:var(--text2);
  font-size:.8125rem;cursor:pointer;transition:all .2s;font-family:inherit;text-align:left;
}
.lang-opt:hover,.lang-opt.active{background:var(--accent-bg);color:var(--text)}
.lang-opt b{font-family:'JetBrains Mono',monospace;font-size:.6875rem;min-width:22px}

/* Hamburger */
#hamburger{display:none;flex-direction:column;gap:6px;background:none;border:none;cursor:pointer;padding:4px}
#hamburger span{width:24px;height:2px;background:var(--text);display:block;transition:.3s}

/* Mobile Menu */
#mobile-menu{
  position:fixed;inset:0;z-index:2000;background:var(--bg);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2rem;
  transform:translateX(100%);transition:transform .4s ease;
}
#mobile-menu.open{transform:translateX(0)}
#mobile-close{position:absolute;top:24px;right:24px;background:none;border:none;color:var(--text);font-size:2.5rem;cursor:pointer}
#mobile-menu a{font-family:'Space Grotesk',system-ui,sans-serif;font-size:clamp(1.4rem,3vw,2.2rem);font-weight:500;text-transform:uppercase;color:var(--text)}
#mobile-lang{display:flex;gap:.5rem;margin-top:1rem;flex-wrap:wrap;justify-content:center}
.mob-lang-btn{padding:8px 16px;background:var(--surface2);border:1px solid var(--border);border-radius:100px;color:var(--text2);font-size:.8125rem;cursor:pointer;font-family:inherit}
.mob-lang-btn:hover{border-color:var(--accent);color:var(--text)}

/* ===== HERO ===== */
#hero{position:relative;min-height:100vh;display:flex;align-items:center;overflow:hidden;padding-top:var(--nav-h)}
.hero-bg{position:absolute;inset:0;display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;opacity:.2;filter:saturate(0.5)}
.hero-bg img{width:100%;height:100%;object-fit:cover}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(10,10,11,0.9)0%,rgba(10,10,11,0.7)50%,rgba(10,10,11,0.9)100%)}
.hero-content{position:relative;z-index:2;max-width:1200px;margin:0 auto;padding:0 clamp(1.5rem,4vw,4rem);width:100%}
.hero-content h1{font-size:clamp(2rem,5.5vw,4.5rem);line-height:1.1;max-width:700px;text-wrap:balance}
#hero-sub{font-size:clamp(1rem,1.3vw,1.2rem);color:var(--text2);margin-top:1.25rem;max-width:520px}
.hero-btns{display:flex;gap:1rem;margin-top:2rem;flex-wrap:wrap}
.hero-slogan{font-size:.875rem;color:var(--accent);margin-top:2rem;font-family:'JetBrains Mono',monospace;letter-spacing:.05em}

/* ===== BUTTONS ===== */
.btn-primary,.btn-secondary{display:inline-flex;align-items:center;justify-content:center;padding:.875rem 2rem;border-radius:100px;font-size:.8125rem;font-weight:500;letter-spacing:.06em;text-transform:uppercase;cursor:pointer;transition:all .3s;font-family:inherit;border:none}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent2);transform:translateY(-2px)}
.btn-secondary{background:transparent;color:var(--text);border:1px solid rgba(245,242,237,0.3)}
.btn-secondary:hover{border-color:rgba(245,242,237,0.6);background:rgba(245,242,237,0.05)}

/* ===== SECTIONS ===== */
.section{position:relative;z-index:2;padding:clamp(60px,8vw,100px)0;background:var(--bg)}
.section-alt{background:var(--surface)}
.container{max-width:1200px;margin:0 auto;padding:0 clamp(1.5rem,4vw,4rem)}
.section-label{font-size:.6875rem;font-weight:400;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);margin-bottom:1.25rem}
.container>h2{font-size:clamp(1.5rem,2.5vw,2.2rem);line-height:1.2}

/* ===== GRID LAYOUTS ===== */
.grid-2{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,380px),1fr));gap:clamp(2rem,4vw,4rem);align-items:start}

/* ===== ABOUT ===== */
.about-desc{font-size:clamp(.9375rem,1.1vw,1.05rem);color:var(--text2);margin-top:1rem;line-height:1.7}
.advantages-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-top:.5rem}
.adv-card{background:var(--surface2);border:1px solid var(--border);border-radius:2px;padding:1.25rem;transition:border-color .3s}
.adv-card:hover{border-color:rgba(201,123,59,0.25)}
.adv-card h4{font-size:.9375rem;font-weight:500;color:var(--text);text-transform:none;letter-spacing:0}
.adv-card p{font-size:.8125rem;color:var(--text2);margin-top:.25rem;line-height:1.5}

/* ===== GRADES ===== */
.grades-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,320px),1fr));gap:1.5rem;margin-top:2.5rem}
.grade-card{background:var(--bg);border:1px solid var(--border);border-radius:2px;padding:1.5rem}
.grade-card h3{font-size:1.1rem;color:var(--accent);text-transform:none;letter-spacing:0}
.grade-desc{font-size:.8125rem;color:var(--text2);margin:.5rem 0 1rem;line-height:1.6}
.grade-table{width:100%;border-collapse:collapse;font-size:.8125rem}
.grade-table th{text-align:left;padding:.4rem .4rem .4rem 0;color:var(--text3);font-weight:400;font-size:.6875rem;text-transform:uppercase;letter-spacing:.05em;border-bottom:1px solid var(--border)}
.grade-table td{padding:.4rem .4rem .4rem 0;color:var(--text2);border-bottom:1px solid var(--border)}
.grade-table tr:last-child td{border-bottom:none}
.g-name{color:var(--text);font-weight:500}
.grade-note{font-size:.875rem;color:var(--text3);margin-top:1.5rem;font-style:italic}

/* Product Gallery */
.product-gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:.5rem;margin-top:2.5rem}
.product-gallery img{width:100%;height:140px;object-fit:cover;border-radius:2px;transition:transform .3s}
.product-gallery img:hover{transform:scale(1.02)}

/* ===== SERVICES ===== */
.services-subtitle{font-size:clamp(.9375rem,1.1vw,1.05rem);color:var(--text2);margin-top:.75rem;max-width:600px;line-height:1.6;font-style:italic}
.services-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,210px),1fr));gap:1rem;margin-top:2rem}
.service-card{background:var(--surface2);border:1px solid var(--border);border-radius:2px;padding:1.25rem;transition:all .3s}
.service-card:hover{border-color:rgba(201,123,59,0.25);transform:translateY(-2px)}
.s-num{font-family:'JetBrains Mono',monospace;font-size:.75rem;color:var(--accent)}
.service-card h4{font-size:.9375rem;font-weight:500;color:var(--text);margin-top:.75rem;text-transform:none;letter-spacing:0}
.service-card>p{font-size:.8125rem;color:var(--text2);margin-top:.25rem;line-height:1.5}
.s-detail{font-size:.6875rem;color:var(--text3);margin-top:.25rem;display:block}

/* ===== ORDER FLOW ===== */
.process-list{margin-top:1.5rem}
.process-step{display:flex;gap:1rem;padding:1rem 0;border-bottom:1px solid var(--border)}
.process-step:last-child{border-bottom:none}
.p-num{font-family:'JetBrains Mono',monospace;font-size:.8125rem;color:var(--accent);min-width:28px;flex-shrink:0}
.process-step h4{font-size:.9375rem;font-weight:500;color:var(--text);text-transform:none;letter-spacing:0}
.process-step p{font-size:.8125rem;color:var(--text2);margin-top:.25rem;line-height:1.5}
.p-detail{font-size:.75rem;color:var(--accent);margin-top:.125rem;display:inline-block}
.process-img{border-radius:2px;overflow:hidden}
.process-img img{width:100%;height:auto;aspect-ratio:3/4;object-fit:cover}

/* ===== QUALITY ===== */
.quality-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,160px),1fr));gap:1rem;margin-top:2rem}
.quality-card{background:var(--surface2);border:1px solid var(--border);padding:1.25rem;text-align:center;transition:border-color .3s}
.quality-card:hover{border-color:rgba(201,123,59,0.25)}
.quality-card h4{font-size:.9375rem;font-weight:500;color:var(--text);text-transform:none;letter-spacing:0}
.quality-card p{font-size:.8125rem;color:var(--text2);margin-top:.5rem;line-height:1.5}
.cert-banner{margin-top:2rem;padding:1.25rem 1.5rem;background:var(--accent-bg);border-left:3px solid var(--accent);border-radius:0 2px 2px 0}
.cert-banner p{font-size:.875rem;color:var(--text2);line-height:1.6}

/* ===== CONTACT ===== */
.contact-desc{font-size:clamp(.9375rem,1.1vw,1.05rem);color:var(--text2);margin-top:1rem;line-height:1.7}
.contact-info{display:flex;flex-direction:column;gap:1rem;margin-top:2rem}
.ci-row{display:flex;flex-direction:column;gap:.25rem}
.ci-label{font-size:.6875rem;text-transform:uppercase;letter-spacing:.08em;color:var(--text3)}
.ci-value{font-size:.9375rem;color:var(--text);transition:color .3s}
a.ci-value:hover{color:var(--accent)}
.trial-note{font-size:.8125rem;color:var(--accent);margin-top:1rem;font-style:italic;font-weight:500}
.contact-gallery{display:grid;grid-template-columns:1fr 1fr;gap:.75rem}
.contact-gallery img{width:100%;height:160px;object-fit:cover;border-radius:2px}

/* ===== FOOTER ===== */
footer{margin-top:4rem;padding-top:2rem;border-top:1px solid var(--border)}
.footer-inner{max-width:1200px;margin:0 auto;padding:0 clamp(1.5rem,4vw,4rem) 2rem;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem}
.footer-inner span{font-size:.75rem;color:var(--text3)}

/* ===== SCROLL ANIMATIONS ===== */
.scroll-in{opacity:0;transform:translateY(30px);transition:opacity .7s ease,transform .7s ease}
.scroll-in.visible{opacity:1;transform:translateY(0)}

/* ===== RESPONSIVE ===== */
@media(max-width:768px){
  :root{--nav-h:72px}
  #nav-links{display:none}
  #lang-wrap{display:none}
  #hamburger{display:flex}
  .hero-btns{flex-direction:column}
  .btn-primary,.btn-secondary{width:100%;text-align:center}
  .advantages-grid{grid-template-columns:1fr}
  .product-gallery{grid-template-columns:repeat(2,1fr)}
  .product-gallery img{height:110px}
  .contact-gallery{grid-template-columns:1fr 1fr}
  .contact-gallery img{height:120px}
  .footer-inner{flex-direction:column;text-align:center;gap:.5rem}
  .process-img{display:none}
}
@media(min-width:769px){#hamburger{display:none!important}}