/* Gayan Tech — design system (Applied-Materials-inspired: dark ink, white space, steel blue accent, gold from logo) */
:root{
  --ink:#0c1a26; --ink2:#13293c; --paper:#ffffff; --mist:#f4f6f9; --line:#e2e8ee;
  --txt:#33475b; --mut:#64788c; --blue:#0b6bcb; --blue-d:#08549f; --gold:#c8a24a;
  --radius:10px; --wrap:1160px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;color:var(--txt);background:var(--paper)}
img{max-width:100%;display:block}
a{color:var(--blue);text-decoration:none}
a:hover{color:var(--blue-d)}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.narrow{max-width:820px}
h1,h2,h3{color:var(--ink);line-height:1.15;font-weight:700;letter-spacing:-.01em}
h1{font-size:clamp(32px,4.6vw,52px)}
h2{font-size:clamp(24px,3vw,34px)}
h3{font-size:19px}
p{margin:0 0 14px}
.eyebrow{text-transform:uppercase;letter-spacing:.16em;font-size:12.5px;font-weight:700;color:var(--gold);margin-bottom:14px}
.lead{font-size:clamp(16px,1.6vw,19px);color:var(--mut);margin:18px 0 26px;max-width:640px}
.sec-title{margin-bottom:26px}
.sec-title.light{color:#fff}
.center-note{text-align:center;color:var(--mut);margin-top:26px}
.center-note.light{color:#b9c6d2}

/* header */
.hd{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.hd-in{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:800;letter-spacing:.14em;font-size:17px}
.brand:hover{color:var(--ink)}
.nav{display:flex;align-items:center;gap:26px}
.nav>a{color:var(--txt);font-size:14px;font-weight:600;letter-spacing:.02em}
.nav>a:hover,.nav>a.on{color:var(--blue)}
.nav>a.btn,.nav>a.btn:hover{color:#fff}
.bars{display:none;background:none;border:0;cursor:pointer;padding:8px}
.bars i{display:block;width:22px;height:2px;background:var(--ink);margin:5px 0}
.lang{position:relative}
.lang summary{list-style:none;cursor:pointer;font-size:13px;font-weight:700;color:var(--txt);border:1px solid var(--line);border-radius:6px;padding:7px 12px;min-width:44px;text-align:center}
.lang summary::-webkit-details-marker{display:none}
.lang[open] summary{border-color:var(--blue);color:var(--blue)}
.lang ul{position:absolute;right:0;top:115%;background:#fff;border:1px solid var(--line);border-radius:8px;list-style:none;min-width:150px;padding:6px;box-shadow:0 12px 30px rgba(12,26,38,.14);z-index:60}
.lang li a{display:block;padding:7px 10px;border-radius:6px;color:var(--txt);font-size:13.5px;margin:0}
.lang li a:hover{background:var(--mist)}
.lang li a.on{color:var(--blue);font-weight:700}

/* buttons */
.btn{display:inline-block;background:var(--blue);color:#fff;font-weight:700;font-size:15px;padding:13px 26px;border-radius:6px;border:0;cursor:pointer}
.btn:hover{background:var(--blue-d);color:#fff}
.btn-sm{padding:9px 16px;font-size:13.5px}
.btn-ghost{background:transparent;color:var(--blue);border:1.5px solid var(--blue)}
.btn-ghost:hover{background:rgba(11,107,203,.08);color:var(--blue-d)}
.btn-ghost.dark{color:#fff;border-color:rgba(255,255,255,.7)}
.btn-ghost.dark:hover{background:rgba(255,255,255,.12);color:#fff}
.btn-gold{background:var(--gold);color:#16202b}
.btn-gold:hover{background:#b58f3c;color:#16202b}
.cta-row{display:flex;gap:14px;flex-wrap:wrap}
.lnk{font-weight:700}
.lnk-light{color:#ffd98a}
.lnk-light:hover{color:#fff}

/* hero */
.hero{background:linear-gradient(135deg,var(--ink) 0%,var(--ink2) 70%);color:#fff;padding:84px 0 92px}
.hero-in{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero h1{color:#fff}
.hero .lead{color:#c3d0dc}
.hero-vis{background:#fff;border-radius:14px;padding:26px;box-shadow:0 24px 60px rgba(0,0,0,.35)}
.trustbar{background:var(--ink2);border-top:1px solid rgba(255,255,255,.08);color:#cfd9e2;padding:16px 0}
.trust-in{display:flex;flex-wrap:wrap;gap:10px 34px;justify-content:center;font-size:13.5px;font-weight:600;letter-spacing:.04em}
.trust-in span{position:relative}
.trust-in span+span:before{content:"";position:absolute;left:-19px;top:50%;transform:translateY(-50%);width:4px;height:4px;border-radius:50%;background:var(--gold)}

/* sections */
.sec{padding:76px 0}
.sec-mist{background:var(--mist)}
.sec-dark{background:var(--ink);color:#c3d0dc}
.sec-dark h3{color:#fff}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.card h3{margin-bottom:12px}
.dcard{border-left:3px solid var(--gold);padding-left:18px}
.mcard{padding:0;overflow:hidden}
.mcard img{width:100%;height:280px;object-fit:contain;background:#fbfcfd;border-bottom:1px solid var(--line);padding:18px}
.mcard h3,.mcard p,.mcard .lnk,.mcard ul{margin-left:24px;margin-right:24px}
.mcard h3{margin-top:22px}
.mcard .lnk{display:inline-block;margin-bottom:24px}
.mini{list-style:none;margin:0 0 14px}
.mini li{padding:5px 0 5px 22px;position:relative;font-size:14.5px}
.mini li:before{content:"";position:absolute;left:0;top:13px;width:8px;height:8px;border-radius:50%;background:var(--gold)}
.split{display:grid;grid-template-columns:1.1fr .9fr;gap:52px;align-items:center}
.split-vis img{border-radius:12px;background:#fff;padding:18px;border:1px solid var(--line)}
.checks{list-style:none}
.checks li{padding:9px 0 9px 32px;position:relative}
.checks li:before{content:"✓";position:absolute;left:0;top:8px;color:var(--blue);font-weight:800}
.steps{margin:0 0 22px 0;list-style:none;counter-reset:st}
.steps li{counter-increment:st;position:relative;padding:10px 0 10px 46px}
.steps li:before{content:counter(st);position:absolute;left:0;top:8px;width:30px;height:30px;border-radius:50%;background:var(--ink);color:#fff;font-weight:700;display:flex;align-items:center;justify-content:center;font-size:14px}

/* page head */
.pagehead{background:linear-gradient(135deg,var(--ink) 0%,var(--ink2) 75%);color:#fff;padding:72px 0 64px}
.pagehead h1{color:#fff}
.pagehead .lead{color:#c3d0dc}
.pagehead .eyebrow{color:var(--gold)}
.pagehead .split{align-items:center}
.pagehead .split-vis img{border:0;box-shadow:0 18px 44px rgba(0,0,0,.35)}

/* spec table */
.spec{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.spec th,.spec td{padding:13px 18px;text-align:left;font-size:14.5px;border-bottom:1px solid var(--line);vertical-align:top}
.spec th{width:34%;background:var(--mist);color:var(--ink);font-weight:700}
.spec tr:last-child th,.spec tr:last-child td{border-bottom:0}
.spec tr:last-child td{font-weight:600;color:var(--ink)}

/* faq */
.faq{border:1px solid var(--line);border-radius:8px;background:#fff;margin-bottom:12px;padding:0}
.faq summary{cursor:pointer;padding:18px 22px;font-weight:700;color:var(--ink);list-style:none;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";position:absolute;right:22px;top:14px;font-size:22px;color:var(--blue)}
.faq[open] summary:after{content:"–"}
.faq p{padding:0 22px 20px;color:var(--txt)}

/* band */
.band{background:var(--blue);color:#fff;padding:56px 0}
.band-in{display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap}
.band h2{color:#fff;margin-bottom:10px}
.band p{color:#dceafc;margin:0;max-width:640px}

/* forms */
.form{padding:32px}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px}
label{display:flex;flex-direction:column;font-size:13.5px;font-weight:700;color:var(--ink);gap:6px}
label.full{margin-bottom:18px}
input,select,textarea{font:inherit;padding:11px 12px;border:1px solid var(--line);border-radius:6px;background:#fff;color:var(--txt)}
input:focus,select:focus,textarea:focus{outline:2px solid rgba(11,107,203,.35);border-color:var(--blue)}
.form-note{font-size:13px;color:var(--mut);margin-top:12px}
.ccard{margin-bottom:16px;padding:22px}
.ccard h3{font-size:16px;margin-bottom:6px}
.ccard p{margin:0}

/* footer */
.ft{background:var(--ink);color:#aebccb;padding:64px 0 0;margin-top:0}
.ft-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.ft h4{color:#fff;font-size:14px;text-transform:uppercase;letter-spacing:.12em;margin-bottom:16px}
.ft a{display:block;color:#aebccb;font-size:14.5px;margin-bottom:10px}
.ft a:hover{color:#fff}
.brand-light span{color:#fff}
.brand-light img{filter:none}
.ft-slogan{color:var(--gold);font-weight:700;margin:16px 0 12px}
.ft-note{font-size:13.5px;color:#8fa0b1}
.ft-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 24px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8fa0b1}

/* responsive */
@media (max-width:960px){
  .hero-in,.split,.grid2,.grid3{grid-template-columns:1fr}
  .hero{padding:56px 0 64px}
  .hero-vis{order:-1}
  .ft-grid{grid-template-columns:1fr 1fr}
  .nav{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;flex-direction:column;align-items:flex-start;padding:18px 24px;border-bottom:1px solid var(--line);gap:16px}
  html.nav-open .nav{display:flex}
  .bars{display:block}
  .frow{grid-template-columns:1fr}
}