/* ZEuON Premium Site Styles
   - Lightweight, framework-free
   - Accessible defaults
*/

:root{
  --brand:#0b2f5b;        /* deep navy */
  --brand-700:#0a264a;
  --brand-600:#12407a;
  --accent:#12b3a8;       /* teal */
  --accent-700:#0e8f86;
  --text:#101828;
  --muted:#475467;
  --bg:#ffffff;
  --surface:#f6f8fb;
  --surface-2:#eef3fb;
  --border:#d0d5dd;
  --shadow:0 10px 30px rgba(16,24,40,.10);
  --shadow-2:0 16px 40px rgba(16,24,40,.14);
  --radius:16px;

  --container:1120px;

  --s-1:6px;
  --s-2:10px;
  --s-3:14px;
  --s-4:18px;
  --s-5:24px;
  --s-6:32px;
  --s-7:44px;
  --s-8:64px;

  --h1:clamp(34px, 3.5vw, 52px);
  --h2:clamp(26px, 2.6vw, 36px);
  --h3:clamp(18px, 1.6vw, 22px);
  --p: 16px;
  --p-lg:18px;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono","Courier New", monospace;
}

*{box-sizing:border-box;}
html,body{height:100%;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.55;
}

img{max-width:100%; height:auto; display:block;}
a{color:inherit;}
p{margin:0 0 12px;}
ul{margin:0; padding-left:18px;}

.container{max-width:var(--container); margin:0 auto; padding:0 20px;}
.section{padding:var(--s-8) 0;}
.section-sm{padding:var(--s-7) 0;}
.center{text-align:center;}

.skip-link{
  position:absolute; left:-999px; top:10px;
  background:#fff; color:var(--text);
  padding:10px 12px; border-radius:10px; border:1px solid var(--border);
  z-index:999;
}
.skip-link:focus{left:12px;}

/* Header */
header{
  position:sticky; top:0; z-index:50;
  background:rgba(11,47,91,.92);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid rgba(255,255,255,.10);
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  gap:16px; padding:14px 0;
}
.brand{
  display:flex; align-items:center; gap:10px;
  text-decoration:none; color:#fff;
}
.brand img{width:112px;}
.brand .brand-text{
  display:none;
  font-weight:800;
  letter-spacing:.2px;
}

.nav{
  display:flex; align-items:center; gap:8px;
}
.nav a{
  color:#fff; text-decoration:none;
  padding:8px 12px; border-radius:999px;
  font-weight:600;
  opacity:.92;
}
.nav a:hover, .nav a.active{
  background:rgba(255,255,255,.14);
  opacity:1;
}
.nav .cta{
  background:rgba(18,179,168,.20);
  border:1px solid rgba(18,179,168,.35);
}
.nav .cta:hover{background:rgba(18,179,168,.30);}

.nav-toggle{
  display:none;
  border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.08);
  color:#fff;
  padding:8px 10px;
  border-radius:12px;
  cursor:pointer;
  font-size:18px;
}
.nav-panel{
  display:none;
}

/* Hero */
.hero{
  position:relative;
  color:#fff;
  padding:86px 0 70px;
  overflow:hidden;
  background:
    radial-gradient(1200px 500px at 20% 20%, rgba(18,179,168,.35), transparent 60%),
    radial-gradient(900px 460px at 70% 10%, rgba(255,255,255,.12), transparent 55%),
    linear-gradient(180deg, var(--brand) 0%, var(--brand-700) 100%);
}
.hero::after{
  content:"";
  position:absolute; inset:auto -10% -45% -10%;
  height:520px;
  background: radial-gradient(closest-side, rgba(18,179,168,.22), transparent 70%);
  transform:rotate(-6deg);
}
.hero-grid{
  position:relative;
  display:grid;
  grid-template-columns: 1.15fr .85fr;
  gap:36px;
  align-items:center;
}
.kicker{
  display:inline-flex; align-items:center; gap:8px;
  padding:6px 10px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.08);
  font-weight:700;
  font-size:13px;
  letter-spacing:.2px;
  margin-bottom:14px;
}
.kicker .dot{
  width:8px; height:8px; border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 4px rgba(18,179,168,.22);
}
.hero h1{
  font-size:var(--h1);
  line-height:1.06;
  margin:0 0 14px;
  letter-spacing:-.6px;
}
.hero p{
  font-size:var(--p-lg);
  color:rgba(255,255,255,.88);
  margin:0 0 18px;
  max-width:56ch;
}
.hero-actions{
  display:flex; gap:12px; flex-wrap:wrap;
  margin-top:18px;
}
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:10px;
  padding:12px 16px;
  border-radius:14px;
  border:1px solid transparent;
  text-decoration:none;
  font-weight:800;
  letter-spacing:.2px;
  box-shadow: 0 10px 22px rgba(16,24,40,.18);
}
.btn.primary{
  background:var(--accent);
  color:#052a27;
}
.btn.primary:hover{background: #18c6ba;}
.btn.secondary{
  background:rgba(255,255,255,.10);
  color:#fff;
  border-color:rgba(255,255,255,.22);
  box-shadow:none;
}
.btn.secondary:hover{background:rgba(255,255,255,.16);}
.btn.ghost{
  background:transparent;
  color:var(--text);
  border-color:var(--border);
  box-shadow:none;
}

.hero-card{
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.16);
  border-radius:var(--radius);
  padding:18px;
  backdrop-filter: blur(10px);
}
.hero-card h3{
  margin:0 0 10px;
  font-size:14px;
  letter-spacing:.24px;
  text-transform:uppercase;
  color:rgba(255,255,255,.80);
}
.hero-metrics{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:10px;
}
.metric{
  padding:12px;
  border-radius:14px;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.10);
}
.metric strong{
  display:block;
  font-size:18px;
  letter-spacing:-.2px;
}
.metric span{
  display:block;
  font-size:13px;
  color:rgba(255,255,255,.80);
}

/* Common blocks */
.surface{background:var(--surface);}
.surface-2{background:var(--surface-2);}
.section-title{
  margin:0 0 12px;
  font-size:var(--h2);
  letter-spacing:-.4px;
}
.section-sub{
  margin:0 auto;
  color:var(--muted);
  max-width:70ch;
  font-size:var(--p-lg);
}

.grid-3{
  display:grid; grid-template-columns:repeat(3, minmax(0,1fr));
  gap:18px;
  margin-top:26px;
}
.grid-2{
  display:grid; grid-template-columns:repeat(2, minmax(0,1fr));
  gap:18px;
  margin-top:26px;
}
.card{
  background:#fff;
  border:1px solid rgba(16,24,40,.10);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:18px;
  transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
}
.card:hover{ transform: translateY(-3px); box-shadow:var(--shadow-2); border-color: rgba(18,179,168,.35); }

.card .icon{
  width:42px; height:42px;
  border-radius:14px;
  display:grid; place-items:center;
  background:rgba(18,179,168,.14);
  border:1px solid rgba(18,179,168,.22);
  color:var(--accent-700);
  margin-bottom:12px;
}
.card h3{ margin:0 0 8px; font-size:var(--h3); letter-spacing:-.2px; }
.card p{ margin:0; color:var(--muted); }
.card a{ text-decoration:none; }
.pill{
  display:inline-flex; align-items:center; gap:8px;
  padding:8px 12px;
  border-radius:999px;
  background:rgba(11,47,91,.08);
  border:1px solid rgba(11,47,91,.14);
  color:var(--brand);
  font-weight:700;
  font-size:13px;
}
.kbd{
  font-family:var(--mono);
  font-size:12px;
  border:1px solid var(--border);
  background:#fff;
  border-radius:8px;
  padding:3px 8px;
}

/* Split layout */
.split{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:26px;
  align-items:start;
  margin-top:28px;
}
.panel{
  background:#fff;
  border:1px solid rgba(16,24,40,.10);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:20px;
}
.panel h3{ margin:0 0 10px; font-size:var(--h3); }
.panel p{ color:var(--muted); }
.list{
  display:grid; gap:10px;
  margin:14px 0 0;
  padding:0;
  list-style:none;
}
.list li{
  display:flex; gap:10px; align-items:flex-start;
  padding:10px 12px;
  border-radius:14px;
  background:var(--surface);
  border:1px solid rgba(16,24,40,.08);
}
.list li .tick{
  width:22px; height:22px; flex:0 0 22px;
  border-radius:8px;
  background:rgba(18,179,168,.16);
  border:1px solid rgba(18,179,168,.22);
  display:grid; place-items:center;
  margin-top:2px;
  color:var(--accent-700);
  font-weight:900;
}

/* Page banner */
.page-banner{
  padding:70px 0 54px;
  color:#fff;
  background:
    radial-gradient(900px 420px at 30% 20%, rgba(18,179,168,.28), transparent 60%),
    linear-gradient(180deg, var(--brand) 0%, var(--brand-700) 100%);
}
.page-banner h1{
  margin:0 0 8px;
  font-size:var(--h2);
  letter-spacing:-.4px;
}
.page-banner p{margin:0; color:rgba(255,255,255,.86);}

/* Contact form */
.form{
  max-width:680px;
  margin:0 auto;
}
label{display:block; margin:12px 0 6px; font-weight:800;}
input, textarea{
  width:100%;
  padding:12px 12px;
  border:1px solid var(--border);
  border-radius:14px;
  font-size:16px;
  background:#fff;
}
textarea{resize:vertical;}
.form-row{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:12px;
}
.form-actions{
  display:flex; gap:12px; flex-wrap:wrap;
  margin-top:16px;
}
button.btn{
  border:0;
  cursor:pointer;
}
button.btn[disabled]{opacity:.65; cursor:not-allowed;}
.help{
  color:var(--muted);
  font-size:14px;
}
.notice{
  margin-top:12px;
  font-weight:800;
}
.notice.ok{color:#0a7c3b;}
.notice.err{color:#b00020;}
.hidepot{position:absolute; left:-9999px;}

/* Footer */
footer{
  background:#0b1220;
  color:rgba(255,255,255,.72);
  padding:26px 0;
  margin-top:40px;
}
.footer-grid{
  display:grid;
  grid-template-columns: 1.2fr .8fr;
  gap:16px;
  align-items:start;
}
.footer-grid a{color:#fff; text-decoration:none;}
.footer-grid a:hover{text-decoration:underline;}
.footer-small{margin-top:14px; font-size:13px; color:rgba(255,255,255,.60);}

/* Accessibility / states */
:focus-visible{
  outline: 3px solid rgba(18,179,168,.35);
  outline-offset: 2px;
}

/* FAQ */
details{
  background:#fff;
  border:1px solid rgba(16,24,40,.10);
  border-radius:var(--radius);
  padding:14px 16px;
  box-shadow:var(--shadow);
}
details + details{margin-top:12px;}
summary{
  cursor:pointer;
  font-weight:900;
}
details p{margin-top:10px; color:var(--muted);}

/* Responsive */
@media (max-width: 980px){
  .hero-grid{grid-template-columns:1fr; gap:18px;}
  .grid-3{grid-template-columns:1fr; }
  .grid-2{grid-template-columns:1fr; }
  .split{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
}

@media (max-width: 760px){
  .nav{display:none;}
  .nav-toggle{display:inline-flex; align-items:center; justify-content:center;}
  .nav-panel{
    display:none;
    position:fixed; inset:64px 0 auto 0;
    background:rgba(11,47,91,.98);
    border-top:1px solid rgba(255,255,255,.10);
    padding:14px 20px 18px;
  }
  .nav-panel.open{display:block;}
  .nav-panel a{
    display:block;
    padding:12px 10px;
    border-radius:14px;
    color:#fff;
    text-decoration:none;
    font-weight:800;
  }
  .nav-panel a:hover, .nav-panel a.active{background:rgba(255,255,255,.12);}
  .form-row{grid-template-columns:1fr;}
}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  .card{transition:none;}
}