/* ===== Design Tokens ===== */
:root{
  --ink:#14202a;
  --ink-soft:#3a4a5c;
  --muted:#6b7c8f;
  --line:#e2e8f0;
  --line-soft:#eef2f7;
  --paper:#f6f8fa;
  --card:#ffffff;
  --brand:#0d5c63;
  --brand-deep:#083d42;
  --brand-light:#127d85;
  --brand-soft:#e6f2f3;
  --accent:#c8792b;
  --accent-light:#e09a4f;
  --accent-soft:#fdf3e7;
  --danger:#b83232;
  --danger-soft:#fdecec;
  --ok:#2d7a4f;
  --ok-soft:#e8f5ee;
  --shadow-sm:0 1px 3px rgba(13,92,99,.06),0 1px 2px rgba(0,0,0,.04);
  --shadow-md:0 4px 16px rgba(13,92,99,.08),0 2px 4px rgba(0,0,0,.04);
  --shadow-lg:0 12px 40px rgba(13,92,99,.12);
  --radius:12px;
  --radius-sm:8px;
  --max-w:1200px;
  --nav-h:72px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-h) + 16px)}
body{
  font-family:"Manrope",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  background:var(--paper);
  color:var(--ink);
  line-height:1.7;
  font-size:15px;
  -webkit-font-smoothing:antialiased;
}
::selection{background:var(--brand);color:#fff}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

/* ===== Typography ===== */
h1,h2,h3,h4,h5{font-family:"Space Grotesk",sans-serif;font-weight:600;line-height:1.25;letter-spacing:-.01em}
h1{font-size:clamp(2rem,5vw,3.4rem);font-weight:700}
h2{font-size:clamp(1.6rem,3.5vw,2.4rem);font-weight:700}
h3{font-size:1.3rem;font-weight:600}
h4{font-size:1.05rem;font-weight:600}
.eyebrow{
  font-size:12px;letter-spacing:3px;text-transform:uppercase;
  color:var(--accent);font-weight:600;margin-bottom:14px;
  display:inline-flex;align-items:center;gap:8px;
}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--accent)}
.lead{font-size:1.1rem;color:var(--ink-soft);line-height:1.8;max-width:640px}
.mono{font-family:"JetBrains Mono",monospace}

/* ===== Layout ===== */
.container{max-width:var(--max-w);margin:0 auto;padding:0 24px}
.section{padding:80px 0}
.section-alt{background:var(--card)}
.section-dark{background:var(--brand-deep);color:#cfe4e6}
.section-dark h2{color:#fff}
.section-dark .lead{color:#a8c9cc}

/* ===== Header / Nav ===== */
.header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  height:var(--nav-h);
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  display:flex;align-items:center;
}
.nav-inner{
  max-width:var(--max-w);margin:0 auto;padding:0 24px;
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.logo{
  font-family:"Space Grotesk","Noto Sans SC",sans-serif;
  font-size:1.5rem;font-weight:700;color:var(--brand-deep);
  letter-spacing:1px;display:flex;align-items:center;gap:8px;
  white-space:nowrap;text-decoration:none;
}
.logo-mark{
  width:32px;height:32px;border-radius:8px;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-light) 100%);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:14px;font-weight:700;
}
.nav-links{display:flex;align-items:center;gap:4px;list-style:none}
.nav-links a{
  padding:8px 14px;border-radius:6px;font-size:14px;font-weight:500;
  color:var(--ink-soft);transition:all .2s;cursor:pointer;white-space:nowrap;
}
.nav-links a:hover{color:var(--brand);background:var(--brand-soft)}
.nav-links a.active{color:var(--brand);background:var(--brand-soft);font-weight:600}
.nav-right{display:flex;align-items:center;gap:12px}
.lang-switch{
  display:flex;align-items:center;gap:2px;
  background:var(--paper);border:1px solid var(--line);
  border-radius:6px;padding:3px;font-size:12px;font-weight:600;
}
.lang-switch button{
  border:none;background:transparent;padding:4px 8px;border-radius:4px;
  cursor:pointer;font-size:12px;font-weight:600;color:var(--muted);
  font-family:inherit;transition:all .2s;white-space:nowrap;
}
.lang-switch button.active{background:var(--brand);color:#fff}
.lang-switch button.disabled{opacity:.4;cursor:not-allowed}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 22px;border-radius:8px;font-size:14px;font-weight:600;
  cursor:pointer;border:none;transition:all .2s;font-family:inherit;
  text-decoration:none;white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-light);transform:translateY(-1px);box-shadow:0 4px 12px rgba(200,121,43,.3)}
.btn-outline{background:transparent;color:var(--brand);border:1.5px solid var(--brand)}
.btn-outline:hover{background:var(--brand);color:#fff}
.btn-ghost{background:var(--brand-soft);color:var(--brand)}
.btn-ghost:hover{background:var(--brand);color:#fff}
.btn-lg{padding:14px 32px;font-size:15px}
.menu-toggle{
  display:none;background:none;border:none;cursor:pointer;
  width:40px;height:40px;border-radius:8px;align-items:center;justify-content:center;
  color:var(--ink);
}
.menu-toggle:hover{background:var(--paper)}

/* ===== Hero ===== */
.hero{
  position:relative;min-height:100vh;display:flex;align-items:center;
  padding-top:var(--nav-h);overflow:hidden;
  background:var(--brand-deep);
}
.hero-bg{
  position:absolute;inset:0;
  background:url('https://aka.doubaocdn.com/s/E5Lsi3cuzA') center/cover no-repeat;
  opacity:.35;
}
.hero-overlay{
  position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(8,61,66,.92) 0%,rgba(13,92,99,.75) 50%,rgba(8,61,66,.88) 100%);
}
.hero-content{position:relative;z-index:2;max-width:var(--max-w);margin:0 auto;padding:0 24px;width:100%}
.hero h1{color:#fff;max-width:780px;margin-bottom:20px}
.hero h1 em{font-style:normal;color:var(--accent-light)}
.hero .lead{color:#b8d6d9;max-width:580px;margin-bottom:36px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:56px}
.hero-stats{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));
  gap:32px;max-width:700px;
  padding-top:32px;border-top:1px solid rgba(255,255,255,.12);
}
.hero-stat .num{
  font-family:"Space Grotesk",sans-serif;font-size:2.2rem;font-weight:700;
  color:#fff;line-height:1;
}
.hero-stat .num span{color:var(--accent-light)}
.hero-stat .label{font-size:13px;color:#8fb8bc;margin-top:6px;letter-spacing:.5px}

/* PCB trace decoration */
.pcb-pattern{
  position:absolute;top:0;right:0;width:50%;height:100%;
  opacity:.08;pointer-events:none;z-index:1;
  background-image:
    linear-gradient(90deg,var(--accent-light) 1px,transparent 1px),
    linear-gradient(var(--accent-light) 1px,transparent 1px);
  background-size:40px 40px;
  mask-image:radial-gradient(ellipse at 70% 50%,black 30%,transparent 70%);
  -webkit-mask-image:radial-gradient(ellipse at 70% 50%,black 30%,transparent 70%);
}

/* ===== Brands strip ===== */
.brands-strip{
  background:var(--card);border-bottom:1px solid var(--line);
  padding:32px 0;
}
.brands-inner{
  display:flex;align-items:center;justify-content:space-between;
  flex-wrap:wrap;gap:24px;
}
.brands-label{font-size:12px;letter-spacing:2px;text-transform:uppercase;color:var(--muted);font-weight:600}
.brands-list{display:flex;gap:32px;flex-wrap:wrap;align-items:center}
.brand-item{
  font-family:"Space Grotesk",sans-serif;font-size:1.1rem;font-weight:600;
  color:var(--ink-soft);opacity:.7;transition:opacity .2s;
}
.brand-item:hover{opacity:1;color:var(--brand)}

/* ===== Cards / Grid ===== */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.card{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);padding:28px;
  box-shadow:var(--shadow-sm);transition:all .25s;
}
.card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);border-color:var(--brand-soft)}
.card-icon{
  width:48px;height:48px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  margin-bottom:18px;background:var(--brand-soft);color:var(--brand);
}
.card h3{margin-bottom:10px;color:var(--ink)}
.card p{color:var(--ink-soft);font-size:14px;line-height:1.7}
.card-accent{border-top:3px solid var(--accent)}

/* ===== Section head ===== */
.section-head{text-align:center;max-width:680px;margin:0 auto 56px}
.section-head h2{margin-bottom:16px}
.section-head .lead{margin:0 auto}

/* ===== Board grades (What We Buy) ===== */
.grade-card{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;
  transition:all .25s;
}
.grade-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}
.grade-header{
  padding:24px 28px;color:#fff;position:relative;
}
.grade-header.top{background:linear-gradient(135deg,var(--brand-deep),var(--brand))}
.grade-header.mid{background:linear-gradient(135deg,#1a5a60,var(--brand-light))}
.grade-header.low{background:linear-gradient(135deg,#3a6b70,#5a8b90)}
.grade-tag{
  display:inline-block;padding:3px 10px;border-radius:20px;
  font-size:11px;font-weight:600;letter-spacing:1px;text-transform:uppercase;
  background:rgba(255,255,255,.2);margin-bottom:10px;
}
.grade-name{font-family:"Space Grotesk",sans-serif;font-size:1.4rem;font-weight:700;color:#fff}
.grade-rate{font-size:2rem;font-weight:700;color:var(--accent-light);margin-top:4px}
.grade-rate small{font-size:.9rem;font-weight:400;color:rgba(255,255,255,.7)}
.grade-body{padding:24px 28px}
.grade-body ul{list-style:none;margin:0}
.grade-body li{
  padding:8px 0;font-size:14px;color:var(--ink-soft);
  display:flex;align-items:flex-start;gap:10px;
  border-bottom:1px solid var(--line-soft);
}
.grade-body li:last-child{border-bottom:none}
.grade-body li svg{flex-shrink:0;margin-top:3px;color:var(--ok)}

/* ===== Rejected items ===== */
.reject-box{
  background:var(--paper);border:1px solid var(--line);
  border-left:4px solid var(--danger);
  border-radius:var(--radius);padding:28px 32px;margin-top:40px;
}
.reject-box h3{color:var(--danger);margin-bottom:16px;display:flex;align-items:center;gap:10px}
.reject-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;list-style:none}
.reject-list li{
  background:var(--card);padding:14px 18px;border-radius:8px;
  font-size:14px;font-weight:500;color:var(--ink);
  display:flex;align-items:center;gap:10px;border:1px solid var(--line);
}
.reject-list li svg{color:var(--danger);flex-shrink:0}

/* ===== Steps (How It Works) ===== */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:0;position:relative}
.step{
  text-align:center;padding:0 12px;position:relative;
}
.step-num{
  width:52px;height:52px;border-radius:50%;
  background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-family:"Space Grotesk",sans-serif;font-size:1.3rem;font-weight:700;
  margin:0 auto 18px;position:relative;z-index:2;
  box-shadow:0 4px 12px rgba(13,92,99,.25);
}
.step:not(:last-child)::after{
  content:"";position:absolute;top:26px;left:calc(50% + 26px);right:calc(-50% + 26px);
  height:2px;background:var(--line);z-index:1;
}
.step h4{margin-bottom:8px;font-size:1rem}
.step p{font-size:13px;color:var(--muted);line-height:1.6}

/* ===== Pricing / Quote form ===== */
.pricing-layout{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.price-note{
  background:var(--accent-soft);border-left:4px solid var(--accent);
  padding:18px 22px;border-radius:0 8px 8px 0;margin-bottom:24px;
  font-size:14px;color:#7a4a15;
}
.price-table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-sm);margin-bottom:24px}
.price-table{width:100%;border-collapse:collapse;font-size:14px}
.price-table th{
  background:var(--brand);color:#fff;padding:12px 16px;
  text-align:left;font-weight:600;font-size:13px;
}
.price-table td{padding:11px 16px;border-bottom:1px solid var(--line-soft);color:var(--ink-soft)}
.price-table tr:last-child td{border-bottom:none}
.price-table tr:hover td{background:var(--paper)}
.price-table .price-val{font-family:"JetBrains Mono",monospace;font-weight:600;color:var(--brand-deep)}

.form-group{margin-bottom:18px}
.form-group label{
  display:block;font-size:13px;font-weight:600;color:var(--ink);
  margin-bottom:6px;
}
.form-group label .req{color:var(--danger)}
.form-group input,.form-group select,.form-group textarea{
  width:100%;padding:11px 14px;border:1.5px solid var(--line);
  border-radius:8px;font-size:14px;font-family:inherit;color:var(--ink);
  background:var(--card);transition:border-color .2s;
}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft);
}
.form-group textarea{resize:vertical;min-height:100px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-hint{font-size:12px;color:var(--muted);margin-top:4px}
.form-success{
  display:none;background:var(--ok-soft);border:1px solid var(--ok);
  color:var(--ok);padding:16px 20px;border-radius:8px;margin-top:16px;
  font-size:14px;
}
.form-success.show{display:block}

/* ===== Shipping / Payment ===== */
.info-card{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);padding:32px;
}
.info-card h3{margin-bottom:16px;display:flex;align-items:center;gap:10px;color:var(--brand-deep)}
.info-card h3 svg{color:var(--accent)}
.pay-methods{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.pay-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 16px;border-radius:20px;font-size:13px;font-weight:600;
  border:1.5px solid;
}
.pay-badge.fiat{background:var(--brand-soft);color:var(--brand);border-color:rgba(13,92,99,.2)}
.pay-badge.crypto{background:var(--ok-soft);color:var(--ok);border-color:rgba(45,122,79,.2)}
.pay-badge.remit{background:var(--accent-soft);color:var(--accent);border-color:rgba(200,121,43,.2)}
.shipping-note{
  background:var(--brand-soft);border-radius:var(--radius-sm);
  padding:20px 24px;margin-top:20px;
}
.shipping-note p{color:var(--brand-deep);font-size:14px;margin:0}
.shipping-note strong{color:var(--brand)}

/* ===== About ===== */
.about-layout{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.about-text h2{margin-bottom:20px}
.about-text p{color:var(--ink-soft);margin-bottom:16px;font-size:15px}
.about-features{list-style:none;margin-top:24px}
.about-features li{
  display:flex;align-items:flex-start;gap:12px;padding:10px 0;
  font-size:14px;color:var(--ink-soft);
}
.about-features li svg{color:var(--accent);flex-shrink:0;margin-top:3px}
.about-visual{
  background:linear-gradient(135deg,var(--brand-deep),var(--brand));
  border-radius:var(--radius);padding:48px;position:relative;overflow:hidden;
  min-height:360px;display:flex;align-items:center;justify-content:center;
}
.about-visual::before{
  content:"";position:absolute;inset:0;opacity:.1;
  background-image:
    linear-gradient(90deg,#fff 1px,transparent 1px),
    linear-gradient(#fff 1px,transparent 1px);
  background-size:30px 30px;
}
.about-big-num{
  font-family:"Space Grotesk",sans-serif;font-size:5rem;font-weight:700;
  color:#fff;line-height:1;text-align:center;position:relative;z-index:2;
}
.about-big-num span{color:var(--accent-light);display:block;font-size:1rem;font-weight:500;margin-top:8px;letter-spacing:2px;text-transform:uppercase}

/* ===== Contact ===== */
.contact-layout{display:grid;grid-template-columns:1fr 1.2fr;gap:48px;align-items:start}
.contact-info-card{
  background:var(--brand-deep);border-radius:var(--radius);padding:40px;
  color:#cfe4e6;
}
.contact-info-card h3{color:#fff;margin-bottom:24px}
.contact-item{
  display:flex;align-items:flex-start;gap:14px;padding:16px 0;
  border-bottom:1px solid rgba(255,255,255,.1);
}
.contact-item:last-child{border-bottom:none}
.contact-item svg{color:var(--accent-light);flex-shrink:0;margin-top:2px}
.contact-item .label{font-size:12px;letter-spacing:1px;text-transform:uppercase;color:#8fb8bc;margin-bottom:2px}
.contact-item .value{font-size:15px;color:#e0eff0;font-weight:500;word-break:break-all}
.wa-btn{
  display:inline-flex;align-items:center;gap:10px;
  background:#25D366;color:#fff;padding:14px 28px;border-radius:10px;
  font-weight:600;font-size:15px;margin-top:24px;transition:all .2s;
}
.wa-btn:hover{background:#1fb855;transform:translateY(-1px)}

/* ===== CTA banner ===== */
.cta-banner{
  background:linear-gradient(135deg,var(--brand-deep) 0%,var(--brand) 100%);
  border-radius:var(--radius);padding:56px 48px;text-align:center;
  position:relative;overflow:hidden;
}
.cta-banner::before{
  content:"";position:absolute;top:-50%;right:-10%;width:400px;height:400px;
  background:radial-gradient(circle,rgba(200,121,43,.15) 0%,transparent 70%);
}
.cta-banner h2{color:#fff;margin-bottom:14px;position:relative}
.cta-banner p{color:#b8d6d9;max-width:520px;margin:0 auto 28px;position:relative}
.cta-banner .btn{position:relative}

/* ===== Footer ===== */
.footer{
  background:var(--brand-deep);color:#8fb8bc;padding:56px 0 28px;
  border-top:3px solid var(--accent);
}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-brand .logo{color:#fff;margin-bottom:14px}
.footer-brand p{font-size:13px;line-height:1.7;color:#8fb8bc;max-width:280px}
.footer-col h5{
  color:#fff;font-size:13px;letter-spacing:1px;text-transform:uppercase;
  margin-bottom:16px;font-weight:600;
}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:13px;color:#8fb8bc;transition:color .2s;cursor:pointer}
.footer-col a:hover{color:var(--accent-light)}
.footer-bottom{
  padding-top:24px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;
  font-size:12px;color:#6a9699;
}

/* ===== Mobile nav overlay ===== */
.mobile-nav{
  display:none;position:fixed;top:var(--nav-h);left:0;right:0;bottom:0;
  background:rgba(8,61,66,.98);z-index:999;padding:24px;
  backdrop-filter:blur(8px);
}
.mobile-nav.open{display:block}
.mobile-nav ul{list-style:none}
.mobile-nav li{border-bottom:1px solid rgba(255,255,255,.1)}
.mobile-nav a{
  display:block;padding:16px 8px;color:#cfe4e6;font-size:16px;font-weight:500;
  cursor:pointer;
}
.mobile-nav a:hover{color:var(--accent-light)}
.mobile-nav .btn{margin-top:20px;width:100%;justify-content:center}

/* ===== Responsive ===== */
@media(max-width:1024px){
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(3,1fr);gap:32px 0}
  .step:nth-child(3)::after{display:none}
  .step:not(:last-child)::after{display:none}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .section{padding:56px 0}
  .nav-links{display:none}
  .menu-toggle{display:flex}
  .lang-switch{display:none}
  .nav-right .btn{display:none}
  .hero{min-height:auto;padding:100px 0 80px}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:24px}
  .hero-stat .num{font-size:2rem}
  .grid-3,.grid-2{grid-template-columns:1fr}
  .pricing-layout,.about-layout,.contact-layout{grid-template-columns:1fr;gap:32px}
  .steps{grid-template-columns:1fr;gap:24px}
  .step::after{display:none!important}
  .form-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .cta-banner{padding:40px 24px}
  .about-visual{min-height:240px}
  .about-big-num{font-size:3.5rem}
  .brands-inner{flex-direction:column;align-items:flex-start}
}

/* ===== Testimonials ===== */
.testimonial-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:28px;
  display:flex;
  flex-direction:column;
  gap:16px;
  transition:transform .25s ease,box-shadow .25s ease;
}
.testimonial-card:hover{
  transform:translateY(-3px);
  box-shadow:0 12px 32px rgba(13,92,99,.1);
}
.testimonial-stars{
  color:var(--accent);
  font-size:16px;
  letter-spacing:2px;
}
.testimonial-text{
  font-size:14px;
  color:var(--ink-soft);
  line-height:1.8;
  margin:0;
  flex:1;
}
.testimonial-author{
  display:flex;
  align-items:center;
  gap:14px;
  padding-top:16px;
  border-top:1px solid var(--line);
}
.testimonial-avatar{
  width:48px;
  height:48px;
  border-radius:50%;
  object-fit:cover;
  border:2px solid var(--brand-soft);
}
.testimonial-name{
  font-weight:600;
  font-size:14px;
  color:var(--ink);
}
.testimonial-country{
  font-size:12px;
  color:var(--muted);
  margin-top:2px;
}