:root{
  --bg: #171511;
  --bg-alt: #1d1a15;
  --card: #211e18;
  --line: #353026;
  --ink: #f3ecdf;
  --ink-dim: #ad9f8c;
  --orange: #c7742f;
  --cyan: #6f8f7a;
  --max: 1120px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height:1.55;
}
.wrap{max-width:var(--max); margin:0 auto; padding:0 24px;}
h1,h2,h3{line-height:1.15; margin:0 0 .5em; font-weight:700; letter-spacing:-0.01em;}
h2{font-size:clamp(1.7rem,3vw,2.3rem);}
h3{font-size:1.15rem;}
p{color:var(--ink-dim);}
a{color:inherit;}

/* header */
.site-header{position:sticky; top:0; z-index:20; background:rgba(18,19,22,0.9); backdrop-filter: blur(8px); border-bottom:1px solid var(--line);}
.header-inner{position:relative; display:flex; align-items:center; justify-content:space-between; height:68px; padding:10px 0;}
.logo{font-size:1.3rem; font-weight:800; text-decoration:none; color:var(--ink); letter-spacing:-0.02em;}
.logo .dot{color:var(--orange);}
.nav{display:flex; align-items:center; gap:16px 22px; font-size:.95rem; flex-wrap:wrap; justify-content:flex-end;}
.nav a{text-decoration:none; color:var(--ink-dim);}
.nav a:hover{color:var(--ink);}
.nav-cta{background:var(--orange); color:#1b1308 !important; padding:9px 16px; border-radius:30px; font-weight:600;}

.nav-toggle{position:absolute; opacity:0; pointer-events:none;}
.nav-toggle-label{display:none; width:38px; height:38px; align-items:center; justify-content:center; cursor:pointer; border-radius:8px; flex-shrink:0;}
.nav-toggle-label span{position:relative; display:block; width:21px; height:2px; background:var(--ink); transition:transform .2s ease, opacity .2s ease;}
.nav-toggle-label span::before, .nav-toggle-label span::after{content:""; position:absolute; left:0; width:21px; height:2px; background:var(--ink); transition:transform .2s ease, top .2s ease;}
.nav-toggle-label span::before{top:-7px;}
.nav-toggle-label span::after{top:7px;}
.nav-toggle:checked ~ .nav-toggle-label span{background:transparent;}
.nav-toggle:checked ~ .nav-toggle-label span::before{top:0; transform:rotate(45deg);}
.nav-toggle:checked ~ .nav-toggle-label span::after{top:0; transform:rotate(-45deg);}

@media (max-width:640px){
  .nav-toggle-label{display:flex;}
  .nav{
    position:absolute; top:100%; left:0; right:0;
    flex-direction:column; align-items:stretch; justify-content:flex-start;
    background:var(--bg-alt); border-bottom:1px solid var(--line);
    box-shadow:0 12px 24px rgba(0,0,0,0.25);
    gap:4px; padding:0 24px; font-size:1rem;
    max-height:0; overflow:hidden; opacity:0;
    transition:max-height .25s ease, opacity .2s ease, padding .25s ease;
  }
  .nav a{padding:12px 0; border-bottom:1px solid var(--line); width:100%;}
  .nav a:last-child{border-bottom:none;}
  .nav-cta{margin:14px 0 18px; text-align:center; width:100%;}
  .nav-toggle:checked ~ .nav{max-height:420px; opacity:1; padding:10px 24px 4px;}
}

/* hero */
.hero{position:relative; padding:100px 0 70px; overflow:hidden;}
.hero-inner{max-width:680px;}
.eyebrow{color:var(--cyan); font-weight:700; letter-spacing:.08em; text-transform:uppercase; font-size:.78rem; margin-bottom:14px;}
.hero h1{font-size:clamp(2.4rem,5.5vw,3.6rem);}
.accent{color:var(--orange);}
.hero-sub{font-size:1.1rem; max-width:560px; margin-bottom:30px;}
.hero-actions{display:flex; gap:14px; flex-wrap:wrap;}
.btn{display:inline-block; padding:13px 26px; border-radius:30px; text-decoration:none; font-weight:600; font-size:.98rem; border:1px solid transparent;}
.btn-primary{background:var(--orange); color:#1b1308;}
.btn-primary:hover{background:#ff8360;}
.btn-ghost{border-color:var(--line); color:var(--ink);}
.btn-ghost:hover{border-color:var(--cyan); color:var(--cyan);}

.hero-chip{position:absolute; right:6%; top:50%; transform:translateY(-50%); width:220px; height:220px; display:none;}
.chip-ring{position:absolute; inset:0; border:2px solid var(--cyan); border-radius:50%; opacity:.5;}
.chip-ring.r2{inset:30px; opacity:.3;}
.chip-core{position:absolute; inset:70px; border-radius:50%; background:radial-gradient(circle at 35% 30%, #9db8a4, #3f5a4a); display:flex; align-items:center; justify-content:center; font-weight:800; color:#eef4ef; font-size:.85rem; letter-spacing:.05em;}
@media (min-width:900px){ .hero-chip{display:block;} }

/* band */
.band{border-top:1px solid var(--line); border-bottom:1px solid var(--line); background:var(--bg-alt);}
.band-inner{display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); gap:20px; padding:28px 24px;}
.band-item{display:flex; flex-direction:column; gap:4px;}
.band-item strong{color:var(--ink); font-size:1rem;}
.band-item span{color:var(--ink-dim); font-size:.88rem;}

/* sections */
.section{padding:84px 0;}
.section-alt{background:var(--bg-alt);}
.section-sub{max-width:620px; font-size:1.05rem; margin-top:-6px; margin-bottom:36px;}

.grid-cards{display:grid; grid-template-columns:repeat(auto-fit,minmax(260px,1fr)); gap:20px;}
.card{background:var(--card); border:1px solid var(--line); border-radius:14px; padding:26px; transition:border-color .15s;}
.card:hover{border-color:var(--orange);}
.card h3{color:var(--ink);}
.card p{margin:0; font-size:.95rem;}
.card-feature{border-color:var(--orange); background:linear-gradient(160deg, rgba(255,106,61,0.1), var(--card) 60%);}
.card-tag{display:inline-block; background:var(--orange); color:#1b1308; font-size:.72rem; font-weight:800; letter-spacing:.04em; text-transform:uppercase; padding:4px 10px; border-radius:20px; margin-bottom:12px;}
.card-link{display:inline-block; margin-top:14px; color:var(--cyan); font-size:.9rem; font-weight:700; text-decoration:none;}
.card-link:hover{text-decoration:underline;}

/* nfc page */
.hero-sm{padding:80px 0 50px;}
.nfc-group{margin-bottom:46px;}
.nfc-group:last-child{margin-bottom:0;}
.nfc-group-title{color:var(--cyan); font-size:.95rem; text-transform:uppercase; letter-spacing:.06em; margin-bottom:16px;}
.nfc-grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));}
.nfc-card{padding:20px;}
.nfc-card h4{margin:0 0 8px; color:var(--ink); font-size:1.02rem;}
.nfc-card p{margin:0; font-size:.9rem;}

.steps{display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); gap:28px;}
.step-num{display:inline-block; color:var(--cyan); font-weight:800; font-size:1.3rem; margin-bottom:10px;}
.step h3{color:var(--ink);}
.step p{font-size:.95rem; margin:0;}

.uses-grid{display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); gap:24px;}
.use h3{color:var(--ink); font-size:1.05rem;}
.use p{font-size:.93rem; margin:0;}

/* contact */
.contact-wrap{display:grid; grid-template-columns:1fr 1.2fr; gap:48px; align-items:start;}
@media (max-width:800px){ .contact-wrap{grid-template-columns:1fr;} }
.contact-intro p{font-size:1.02rem;}

.sas-form{display:flex; flex-direction:column; gap:16px; background:var(--card); border:1px solid var(--line); border-radius:14px; padding:28px;}
.sas-field{display:flex; flex-direction:column; gap:6px; font-size:.9rem; color:var(--ink-dim);}
.sas-field input, .sas-field select, .sas-field textarea{
  background:var(--bg); border:1px solid var(--line); border-radius:8px; padding:11px 12px; color:var(--ink); font-size:.95rem; font-family:inherit;
}
.sas-field textarea{min-height:110px; resize:vertical;}
.sas-field input:focus, .sas-field select:focus, .sas-field textarea:focus{outline:none; border-color:var(--cyan);}
.sas-form button{background:var(--orange); color:#1b1308; border:none; border-radius:30px; padding:13px 22px; font-weight:700; font-size:.98rem; cursor:pointer;}
.sas-form button:hover{background:#ff8360;}
.sas-form-status{font-size:.9rem; color:var(--cyan); margin:0;}

/* pricing page */
.pricing-grid{align-items:stretch;}
.pricing-card{display:flex; flex-direction:column;}
.price{display:flex; align-items:baseline; gap:6px; margin:4px 0 0;}
.price-amount{font-size:2.4rem; font-weight:800; color:var(--ink); line-height:1;}
.price-unit{color:var(--ink-dim); font-size:.95rem;}
.pricing-sub{color:var(--cyan); font-size:.9rem; font-weight:700; margin:4px 0 18px;}
.pricing-list{list-style:none; padding:0; margin:0 0 24px; display:flex; flex-direction:column; gap:10px; flex-grow:1;}
.pricing-list li{font-size:.92rem; color:var(--ink-dim); padding-left:20px; position:relative;}
.pricing-list li::before{content:"✓"; position:absolute; left:0; color:var(--cyan); font-weight:800;}
.pricing-card .btn{align-self:flex-start;}
.pricing-note{margin-top:30px; font-size:.92rem; max-width:640px;}

.addon-box{margin-top:40px; display:flex; align-items:center; justify-content:space-between; gap:24px; flex-wrap:wrap; background:var(--card); border:1px solid var(--line); border-radius:14px; padding:26px 28px;}
.addon-text h3{color:var(--ink); margin-bottom:8px;}
.addon-text p{margin:0; font-size:.95rem; max-width:560px;}
.btn-secondary{background:transparent; border:1px solid var(--cyan); color:var(--cyan); white-space:nowrap;}
.btn-secondary:hover{background:rgba(63,224,197,0.1);}

/* footer */
.site-footer{border-top:1px solid var(--line); padding:48px 0; background:var(--bg-alt);}
.footer-inner{display:flex; justify-content:space-between; flex-wrap:wrap; gap:24px;}
.footer-inner p{font-size:.88rem; margin:8px 0 0;}
.footer-links{display:flex; gap:20px; flex-wrap:wrap; align-items:flex-start; font-size:.9rem;}
.footer-links a{text-decoration:none; color:var(--ink-dim);}
.footer-links a:hover{color:var(--cyan);}