:root{
  --bg:#0b0f19;
  --panel:#0f1629;
  --text:#e8eefc;
  --muted:#b8c3e3;
  --stroke:rgba(255,255,255,.12);
  --shadow:0 18px 55px rgba(0,0,0,.45);
  --radius:18px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
  color:var(--text);
  background-color: #0c0c0c;
  background-image: linear-gradient(to bottom, #284672, #293656, #23283c, #1a1a24, #0c0c0c);
  background-repeat: no-repeat;
  background-attachment: fixed;
  min-height: 100vh;
}

/* account for fixed navbar */
body{ padding-top: 72px; }


.container{
  width:min(1100px, calc(100% - 36px));
  margin-inline:auto;
}

.topbar{
  position:fixed;
  left:0;
  right:0;
  top:0;
  z-index:50;
  backdrop-filter: blur(12px);
  background: rgba(11,15,25,.55);
  border-bottom:1px solid var(--stroke);
}

.topbar__inner{
  display:flex;
  align-items:center;
  gap:18px;
  padding: 8px 0;
}

.brand{
  display:flex;
  align-items:center;
  text-decoration:none;
  color:inherit;
  padding:0;
  border:0;
  background:transparent;
  border-radius:0;
  line-height:0;
}

.brand__logo{
  height:47px;
  width:auto;
  display:block;
  object-fit:contain;
}

.nav{display:flex; gap:14px; margin-left:10px}
.nav__link{
  text-decoration:none;
  color:var(--muted);
  padding:8px 10px;
  border-radius:12px;
}
.nav__link:hover{color:var(--text); background:rgba(255,255,255,.06)}
.nav__link.is-active{color:var(--text); background:rgba(255,255,255,.08)}

.actions{margin-left:auto; display:flex; gap:10px}
.hamburger{display:none; margin-left:auto; background:transparent; border:0; color:var(--text); font-size:22px; cursor:pointer}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:9px 12px;
  border-radius:12px;
  border:1px solid var(--stroke);
  color:var(--text);
  text-decoration:none;
  background: rgba(255,255,255,.04);
}
.btn:hover{transform: translateY(-1px)}
.btn--primary{
  background: linear-gradient(135deg, rgba(120,120,255,.95), rgba(0,210,255,.85));
  border-color: transparent;
  box-shadow: 0 12px 30px rgba(70,120,255,.25);
}
.btn--ghost{background: rgba(255,255,255,.03)}

/* Header buttons: glossy sky-blue */
.topbar .actions .btn,
.topbar .mobile__actions .btn{
  background: linear-gradient(135deg, rgba(110,190,255,.95), rgba(0,150,255,.85));
  border-color: transparent;
  box-shadow: 0 12px 30px rgba(0,140,255,.25);
}
.topbar .actions .btn:hover,
.topbar .mobile__actions .btn:hover{ transform: translateY(-1px); filter: brightness(1.05); }

.mobile{
  display:none;
  border-top:1px solid var(--stroke);
  padding:10px 0 14px;
}
.mobile a{
  display:block;
  padding:10px 0;
  color:var(--muted);
  text-decoration:none;
}
.mobile a:hover{color:var(--text)}
.mobile__actions{display:flex; gap:10px; padding-top:10px}

.hero{
  position:relative;
  min-height: 620px;
  display:flex;
  align-items:center;
  overflow:hidden;
}
.hero__bg{
  position:absolute;
  inset:0;
  background-size: cover;
  background-position:center;
  transform: scale(1.03);
  filter: saturate(1.05) contrast(1.02);
}
.hero__overlay{
  position:absolute;
  inset:0;
  background:
    radial-gradient(900px 420px at 50% 30%, rgba(0,0,0,.25), rgba(0,0,0,.72)),
    linear-gradient(to bottom, rgba(11,15,25,.25), rgba(11,15,25,.90));
}
.hero__content{position:relative; padding:44px 0}
.hero__panel{
  width:min(980px, 100%);
  margin-inline:auto;
  text-align:center;
  padding:44px 22px 28px;
  border-radius: 26px;
  border:1px solid rgba(255,255,255,.14);
  background: rgba(10,18,40,.35);
  box-shadow: 0 24px 70px rgba(0,0,0,.45);
  backdrop-filter: blur(12px);
}
.hero__title{
  margin:10px 0 8px;
  font-size: clamp(30px, 4vw, 44px);
  letter-spacing: .2px;
}
.hero__subtitle{margin:0; color:var(--muted)}
.hero__cta{display:flex; justify-content:center; gap:12px; margin-top:18px; flex-wrap:wrap}

.hero__cta .btn{ padding:12px 18px; border-radius:14px; }

.hero__tabs{
  display:flex;
  justify-content:center;
  gap:12px;
  margin-top:22px;
  flex-wrap:wrap;
}
.tab{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:12px 18px;
  border-radius:999px;
  text-decoration:none;
  color:rgba(255,255,255,.82);
  border:1px solid rgba(255,255,255,.16);
  background: rgba(0,0,0,.22);
  backdrop-filter: blur(10px);
}
.tab.is-active{
  color:var(--text);
  background: linear-gradient(135deg, rgba(110,190,255,.85), rgba(0,150,255,.65));
  border-color: transparent;
  box-shadow: 0 16px 40px rgba(0,140,255,.25);
}

.hero__arrow{display:none}

.dots{
  display:flex;
  justify-content:center;
  gap:8px;
  margin: 8px 0 2px;
}
.dot{
  width:10px; height:10px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.35);
  background: rgba(255,255,255,.12);
  cursor:pointer;
}
.dot.is-active{
  background: rgba(255,255,255,.85);
  border-color: transparent;
}

.section{padding:54px 0}
.section__head{
  text-align:left;
  margin-bottom:18px;
}
.section__head h2{margin:0 0 8px; font-size:26px}
.section__head p{margin:0; color:var(--muted)}
.grid4{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap:18px;
  margin-top:22px;
}
.card{
  border-radius: var(--radius);
  border:1px solid var(--stroke);
  background: rgba(15,22,41,.55);
  box-shadow: 0 16px 40px rgba(0,0,0,.30);
  padding:18px;
}
.card__media{
  height: 180px;
  border-radius: 16px;
  overflow:hidden;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(0,0,0,.20);
}
.card__media img{ width:100%; height:100%; object-fit:cover; display:block; }
.card__tag{
  display:inline-block;
  font-size:12px;
  padding:6px 10px;
  border-radius:999px;
  border:1px solid var(--stroke);
  color:rgba(255,255,255,.78);
  background: rgba(255,255,255,.04);
}
.card h3{margin:12px 0 8px}
.card p{margin:0; color:var(--muted); line-height:1.55}
.card__meta{margin-top:12px; opacity:.85; font-size:13px}
.card__actions{display:flex; gap:10px; margin-top:14px; flex-wrap:wrap}

.footer{
  border-top:1px solid var(--stroke);
  padding:22px 0;
  background: rgba(11,15,25,.65);
  backdrop-filter: blur(10px);
}
.footer__inner{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:16px;
}
.footer__brand{font-weight:750}
.footer__small{color:var(--muted); margin-top:4px; font-size:13px}
.footer__links{display:flex; gap:14px; flex-wrap:wrap}
.footer__links a{color:var(--muted); text-decoration:none}
.footer__links a:hover{color:var(--text)}

@media (max-width: 1100px){
  .grid4{grid-template-columns: repeat(2, 1fr)}
}
@media (max-width: 700px){
  .grid4{grid-template-columns:1fr}
}
@media (max-width: 760px){
  .nav, .actions{display:none}
  .hamburger{display:block}
  .mobile.is-open{display:block}
  .hero__arrow{display:none}
}