/* ==========================================================================
   SG CLOUD NET — Design tokens
   ========================================================================== */
:root{
  --bg:#0A0E17;
  --surface:#121B2C;
  --surface-alt:#182339;
  --border:#26314A;
  --border-strong:#354566;
  --text:#EDEFF4;
  --text-2:#9AA5BC;
  --text-3:#5E6C8A;
  --accent:#F2A73B;
  --accent-dark:#C97F27;
  --accent-tint:#3A2E17;
  --status:#3FD6B0;
  --danger:#E2574C;
  --radius:6px;
  --radius-lg:14px;
  --maxw:1180px;
  --font-display:'Space Grotesk', 'IBM Plex Sans', sans-serif;
  --font-body:'Inter', -apple-system, sans-serif;
  --font-mono:'IBM Plex Mono', 'SFMono-Regular', monospace;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:600;line-height:1.15;margin:0 0 .5em;letter-spacing:-0.01em;}
p{margin:0 0 1em;}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px;}

/* background schematic grid */
body{
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size:64px 64px;
  background-position:center top;
  background-attachment:fixed;
  background-color:var(--bg);
}
body::before{
  content:'';
  position:fixed;inset:0;
  background:radial-gradient(ellipse 60% 40% at 50% 0%, rgba(10,14,23,0) 0%, var(--bg) 75%);
  pointer-events:none;
  z-index:0;
}

/* ---------- eyebrow / mono labels ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);
  font-size:12.5px;letter-spacing:.06em;
  color:var(--accent);
  text-transform:uppercase;
  margin-bottom:16px;
}
.eyebrow::before{content:'[';color:var(--text-3);}
.eyebrow::after{content:']';color:var(--text-3);}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--status);box-shadow:0 0 0 3px rgba(63,214,176,.15);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:var(--font-body);font-weight:600;font-size:14.5px;
  padding:13px 22px;border-radius:var(--radius);
  border:1px solid transparent;cursor:pointer;
  transition:all .15s ease;white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#1A1204;}
.btn-primary:hover{background:#FFC168;}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--border-strong);}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);}
.btn-block{width:100%;}

/* ---------- header / nav ---------- */
header.site{
  position:sticky;top:0;z-index:50;
  background:rgba(10,14,23,.85);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
}
.nav-row{display:flex;align-items:center;justify-content:space-between;height:76px;position:relative;z-index:1;}
.logo-mark{display:flex;align-items:center;gap:10px;}
.logo-mark svg{height:34px;width:auto;}
nav.main-links{display:flex;gap:32px;}
nav.main-links a{
  font-size:14.5px;color:var(--text-2);font-weight:500;
  padding:6px 0;border-bottom:1px solid transparent;
  transition:color .15s;
}
nav.main-links a:hover,nav.main-links a.active{color:var(--text);border-color:var(--accent);}
.nav-right{display:flex;align-items:center;gap:18px;}
.lang-switch{display:flex;gap:2px;font-family:var(--font-mono);font-size:12.5px;}
.lang-switch a{padding:4px 8px;border-radius:4px;color:var(--text-3);}
.lang-switch a.active{color:var(--accent);background:var(--accent-tint);}
.nav-toggle{display:none;background:none;border:1px solid var(--border-strong);border-radius:6px;padding:8px 10px;color:var(--text);}

@media (max-width:900px){
  nav.main-links{
    position:absolute;top:76px;left:0;right:0;
    background:var(--surface);border-bottom:1px solid var(--border);
    flex-direction:column;gap:0;padding:8px 24px 20px;
    display:none;
  }
  nav.main-links.open{display:flex;}
  nav.main-links a{padding:12px 0;border-bottom:1px solid var(--border);width:100%;}
  .nav-toggle{display:block;}
}

/* ---------- hero ---------- */
.hero{padding:96px 0 64px;position:relative;z-index:1;}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.hero h1{font-size:clamp(32px,4.4vw,52px);color:var(--text);}
.hero h1 .accent{color:var(--accent);}
.hero .lead{font-size:18px;color:var(--text-2);max-width:52ch;margin-bottom:32px;}
.hero-ctas{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:40px;}
.hero-meta{display:flex;gap:28px;font-family:var(--font-mono);font-size:12.5px;color:var(--text-3);flex-wrap:wrap;}
.hero-meta strong{color:var(--text-2);font-weight:500;}
@media (max-width:900px){.hero-grid{grid-template-columns:1fr;}}

/* ---------- topology diagram ---------- */
.topo-wrap{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px;}
.topo-wrap svg{width:100%;height:auto;display:block;}
.topo-line{stroke:var(--border-strong);stroke-width:1.5;fill:none;stroke-dasharray:6 260;stroke-dashoffset:0;animation:flow 5s linear infinite;}
.topo-line.hot{stroke:var(--accent);opacity:.9;}
@keyframes flow{to{stroke-dashoffset:-266;}}
.topo-node rect{fill:var(--surface-alt);stroke:var(--border-strong);stroke-width:1;}
.topo-node text{fill:var(--text-2);font-family:var(--font-mono);font-size:10.5px;}
.topo-node .label-main{fill:var(--text);font-family:var(--font-body);font-size:12.5px;font-weight:600;}
.topo-dot{fill:var(--status);}

/* ---------- trust bar ---------- */
.trust{padding:28px 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border);position:relative;z-index:1;}
.trust-row{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px;}
.trust-label{font-family:var(--font-mono);font-size:12px;color:var(--text-3);letter-spacing:.05em;text-transform:uppercase;}
.trust-tags{display:flex;gap:10px;flex-wrap:wrap;}
.tag{
  font-family:var(--font-mono);font-size:12.5px;color:var(--text-2);
  border:1px solid var(--border-strong);border-radius:100px;padding:6px 14px;
}

/* ---------- sections ---------- */
section{position:relative;z-index:1;}
.section{padding:88px 0;}
.section-head{max-width:640px;margin-bottom:48px;}
.section-head h2{font-size:clamp(26px,3vw,36px);}
.section-head p{color:var(--text-2);font-size:16.5px;}

/* ---------- service cards ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
@media (max-width:960px){.grid-3{grid-template-columns:1fr;}}
.card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:28px 26px;transition:border-color .15s, transform .15s;
}
.card:hover{border-color:var(--border-strong);}
.card .idx{font-family:var(--font-mono);font-size:12px;color:var(--accent);margin-bottom:14px;display:block;}
.card h3{font-size:19px;margin-bottom:10px;}
.card p{color:var(--text-2);font-size:14.5px;margin-bottom:16px;}
.card ul{display:flex;flex-direction:column;gap:8px;}
.card ul li{font-size:13.5px;color:var(--text-2);padding-left:16px;position:relative;}
.card ul li::before{content:'';position:absolute;left:0;top:8px;width:6px;height:1.5px;background:var(--border-strong);}
.card a.card-link{display:inline-flex;align-items:center;gap:6px;margin-top:16px;color:var(--accent);font-size:13.5px;font-weight:600;}

/* ---------- process ---------- */
.process{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;}
.process > div{padding:28px 24px;border-right:1px solid var(--border);}
.process > div:last-child{border-right:none;}
.process .hop{font-family:var(--font-mono);font-size:11.5px;color:var(--text-3);margin-bottom:10px;}
.process h4{font-size:16px;margin-bottom:8px;}
.process p{font-size:13.5px;color:var(--text-2);margin:0;}
@media (max-width:900px){.process{grid-template-columns:1fr;}.process > div{border-right:none;border-bottom:1px solid var(--border);}.process > div:last-child{border-bottom:none;}}

/* ---------- about teaser ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
@media (max-width:900px){.split{grid-template-columns:1fr;}}
.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:24px;}
.stat{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px 20px;}
.stat b{display:block;font-family:var(--font-display);font-size:26px;color:var(--accent);}
.stat span{font-size:12.5px;color:var(--text-2);}

/* ---------- contact ---------- */
.contact-wrap{display:grid;grid-template-columns:1fr 1fr;gap:56px;}
@media (max-width:900px){.contact-wrap{grid-template-columns:1fr;}}
.form-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:32px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:7px;font-family:var(--font-mono);}
.field input,.field select,.field textarea{
  width:100%;background:var(--bg);border:1px solid var(--border-strong);border-radius:var(--radius);
  padding:11px 13px;color:var(--text);font-family:var(--font-body);font-size:14.5px;
}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--accent);}
.field textarea{resize:vertical;min-height:110px;}
.form-note{font-size:12.5px;color:var(--text-3);margin-top:14px;}
.contact-info-item{display:flex;gap:14px;padding:18px 0;border-bottom:1px solid var(--border);}
.contact-info-item:last-child{border-bottom:none;}
.contact-info-item .k{font-family:var(--font-mono);font-size:11.5px;color:var(--text-3);text-transform:uppercase;letter-spacing:.05em;margin-bottom:4px;}
.contact-info-item .v{font-size:15px;color:var(--text);}
.contact-info-item .v a:hover{color:var(--accent);}
#form-status{font-size:13.5px;margin-top:12px;}

/* ---------- footer ---------- */
footer.site{border-top:1px solid var(--border);padding:56px 0 32px;position:relative;z-index:1;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;margin-bottom:44px;}
@media (max-width:800px){.footer-grid{grid-template-columns:1fr 1fr;}}
.footer-grid h5{font-family:var(--font-mono);font-size:12px;text-transform:uppercase;color:var(--text-3);letter-spacing:.05em;margin-bottom:16px;}
.footer-grid ul li{margin-bottom:10px;}
.footer-grid ul li a{font-size:14px;color:var(--text-2);}
.footer-grid ul li a:hover{color:var(--accent);}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;padding-top:28px;border-top:1px solid var(--border);}
.footer-bottom p{margin:0;font-size:13px;color:var(--text-3);}

/* ---------- badges page-wide ---------- */
.badge{font-family:var(--font-mono);font-size:11.5px;padding:3px 9px;border-radius:4px;border:1px solid var(--border-strong);color:var(--text-2);}

/* utility */
.mt-0{margin-top:0;}
.text-center{text-align:center;margin:0 auto;}