@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&display=swap');

:root{
  --ink:#0d171e;
  --paper:#f4f6f7;
  --white:#fff;
  --muted:#68757e;
  --accent:#0c95b8;
  --accent-soft:#a7dce7;
  --line:#dce3e7;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"Manrope",system-ui,sans-serif;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit}
img{display:block;max-width:100%}
.container{width:min(1180px,calc(100% - 48px));margin:auto}

.topbar{
  position:fixed;
  top:18px;left:50%;transform:translateX(-50%);
  width:min(1220px,calc(100% - 36px));
  height:70px;
  padding:0 14px 0 20px;
  display:flex;align-items:center;justify-content:space-between;
  color:#fff;
  background:rgba(7,18,25,.74);
  border:1px solid rgba(255,255,255,.12);
  border-radius:18px;
  backdrop-filter:blur(18px);
  z-index:20;
  box-shadow:0 18px 45px rgba(0,0,0,.18);
}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none}
.brand-dot{
  width:12px;height:12px;border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 5px rgba(12,149,184,.16)
}
.brand strong{font-size:16px;letter-spacing:-.02em}

nav{display:flex;gap:6px;align-items:center}
nav a{
  text-decoration:none;
  color:rgba(255,255,255,.72);
  font-size:13px;font-weight:700;
  padding:12px 14px;border-radius:11px;
  transition:.2s ease
}
nav a:hover{color:#fff;background:rgba(255,255,255,.08)}
nav .nav-link-main{background:#fff;color:var(--ink);padding-inline:18px}
nav .nav-link-main:hover{background:var(--accent-soft);color:var(--ink)}

.menu-btn{display:none;border:0;background:none;padding:8px}
.menu-btn span{display:block;width:24px;height:2px;margin:5px;background:#fff;border-radius:2px}

.hero{
  position:relative;
  min-height:850px;
  display:flex;align-items:flex-end;
  overflow:hidden;
  color:#fff;
  background:#08131a;
}
.hero-image{
  position:absolute;inset:0;
  background:url("assets/hero-ai.jpg") center center/cover no-repeat;
  transform:scale(1.03);
}
.hero-overlay{
  position:absolute;inset:0;
  background:
    linear-gradient(90deg,rgba(7,17,24,.96) 0%,rgba(7,17,24,.77) 38%,rgba(7,17,24,.28) 72%,rgba(7,17,24,.38) 100%),
    linear-gradient(0deg,rgba(7,17,24,.78) 0%,transparent 50%);
}
.hero-content{
  position:relative;
  z-index:2;
  padding:190px 0 95px;
}
.eyebrow,.section-label{
  margin:0;
  color:var(--accent);
  font-size:11px;
  font-weight:800;
  text-transform:uppercase;
  letter-spacing:.18em;
}
.eyebrow{color:#bfeaf3}
.hero h1{
  margin:22px 0 24px;
  max-width:820px;
  font-size:clamp(72px,10vw,138px);
  line-height:.83;
  letter-spacing:-.07em;
  font-weight:800;
}
.hero h1 span{color:#b8e5ef}
.lead{
  max-width:570px;
  color:rgba(255,255,255,.7);
  font-size:18px;
  line-height:1.7;
}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:36px}
.btn{
  min-height:56px;
  padding:0 23px;
  display:inline-flex;align-items:center;gap:20px;justify-content:center;
  border-radius:14px;
  font-size:13px;font-weight:800;
  text-decoration:none;
  transition:transform .2s ease,background .2s ease
}
.btn:hover{transform:translateY(-2px)}
.primary{background:var(--accent);color:#fff;box-shadow:0 14px 30px rgba(12,149,184,.26)}
.primary:hover{background:#0aa6cb}
.ghost{border:1px solid rgba(255,255,255,.25);background:rgba(255,255,255,.05);color:#fff}
.ghost:hover{background:rgba(255,255,255,.12)}
.scroll-hint{
  position:absolute;z-index:3;right:48px;bottom:38px;
  width:46px;height:68px;border:1px solid rgba(255,255,255,.28);
  border-radius:24px;
}
.scroll-hint span{
  position:absolute;top:14px;left:50%;transform:translateX(-50%);
  width:4px;height:4px;border-radius:50%;background:#fff;
  animation:scrollDot 1.7s infinite
}
@keyframes scrollDot{
  0%{opacity:0;transform:translate(-50%,0)}
  35%{opacity:1}
  100%{opacity:0;transform:translate(-50%,28px)}
}

.intro{padding:125px 0;background:#fff}
.intro-grid{
  display:grid;
  grid-template-columns:.9fr 1.1fr;
  gap:95px;
  align-items:center;
}
.intro-copy h2{
  margin:16px 0 28px;
  font-size:clamp(44px,5.6vw,72px);
  line-height:1.02;
  letter-spacing:-.055em;
}
.intro-copy h2 span{color:var(--accent)}
.body-copy{
  max-width:610px;
  color:var(--muted);
  font-size:16px;
  line-height:1.82;
}
.inline-link{
  display:inline-flex;gap:12px;align-items:center;
  margin-top:18px;
  text-decoration:none;
  font-size:13px;font-weight:800;
}
.inline-link span{color:var(--accent);font-size:20px;transition:transform .2s}
.inline-link:hover span{transform:translateX(6px)}
.image-card{
  position:relative;
  overflow:hidden;
  border-radius:26px;
  box-shadow:0 28px 65px rgba(11,28,38,.14);
}
.image-card img{width:100%;aspect-ratio:4/3;object-fit:cover}
.image-caption{
  position:absolute;left:18px;right:18px;bottom:18px;
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 16px;
  color:#fff;
  background:rgba(8,21,28,.72);
  border:1px solid rgba(255,255,255,.12);
  border-radius:14px;
  backdrop-filter:blur(14px)
}
.image-caption span{font-size:11px;color:#9edbea;font-weight:800}
.image-caption p{margin:0;font-size:12px;font-weight:700}

.feature{
  min-height:600px;
  position:relative;
  display:flex;align-items:flex-end;
  overflow:hidden;
  color:#fff;
}
.feature-image{
  position:absolute;inset:0;
  background:url("assets/detail-ai.jpg") center/cover no-repeat;
}
.feature-overlay{
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(6,16,22,.94),rgba(6,16,22,.56) 55%,rgba(6,16,22,.25));
}
.feature-content{position:relative;z-index:2;padding:105px 0}
.section-label.light{color:#bcebf5}
.feature h2{
  max-width:750px;
  margin:15px 0 30px;
  font-size:clamp(45px,6vw,78px);
  line-height:1;
  letter-spacing:-.055em;
}
.light-btn{background:#fff;color:var(--ink)}
.light-btn:hover{background:var(--accent-soft)}

footer{padding:55px 0;background:#071118;color:#fff}
.footer-wrap{
  display:grid;grid-template-columns:1fr auto;
  gap:34px;align-items:end;
}
footer strong{font-size:27px;letter-spacing:-.035em}
footer p{margin:8px 0 0;color:rgba(255,255,255,.46);font-size:12px}
.footer-links{display:flex;gap:18px}
.footer-links a{text-decoration:none;color:rgba(255,255,255,.72);font-size:12px;font-weight:700}
footer small{grid-column:1/-1;padding-top:26px;border-top:1px solid rgba(255,255,255,.1);color:rgba(255,255,255,.38)}

.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:none}

@media(max-width:820px){
  .topbar{top:10px}
  .menu-btn{display:block}
  nav{
    position:absolute;top:calc(100% + 8px);left:0;right:0;
    display:none;flex-direction:column;align-items:stretch;
    padding:10px;border-radius:16px;background:rgba(7,18,25,.98)
  }
  nav.open{display:flex}
  .hero{min-height:760px}
  .intro-grid{grid-template-columns:1fr;gap:50px}
  .footer-wrap{grid-template-columns:1fr}
  .footer-links{flex-wrap:wrap}
}
@media(max-width:560px){
  .container{width:min(100% - 30px,1180px)}
  .topbar{width:calc(100% - 20px)}
  .hero{min-height:710px}
  .hero-content{padding:150px 0 54px}
  .hero h1{font-size:clamp(66px,21vw,96px)}
  .lead{font-size:15px}
  .scroll-hint{display:none}
  .intro{padding:82px 0}
  .intro-copy h2,.feature h2{font-size:42px}
  .feature{min-height:520px}
  .feature-content{padding:72px 0}
}