:root{
  --bg:#070a12;
  --panel: rgba(12,16,28,0.82);
  --text:#eef2ff;
  --muted:#b7c2db;
  --line: rgba(241,245,255,0.14);
  --btn:#f1f5ff;
  --btnText:#070a12;
  --shadow: 0 14px 30px rgba(0,0,0,0.28);
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: var(--bg);
  color:var(--text);
  line-height:1.55;
}

a{ color:inherit; text-decoration:none; }
a:hover{ text-decoration:underline; }

.wrap{ width:min(1080px, 92%); margin:0 auto; }

.site-header{
  position:sticky; top:0;
  backdrop-filter: blur(10px);
  background: rgba(7,10,18,0.68);
  border-bottom:1px solid var(--line);
  z-index:10;
}
.header-row{
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 0;
}
.brand{
  font-weight:800;
  letter-spacing:0.6px;
  text-transform: uppercase;
  font-size: 13px;
}
.nav{ display:flex; gap:12px; align-items:center; flex-wrap:wrap; }
.nav a{ padding:8px 10px; border-radius:12px; color: var(--muted); }
.nav a[aria-current="page"]{ background: rgba(241,245,255,0.08); color: var(--text); }

.btn{
  display:inline-block;
  background:var(--btn);
  color:var(--btnText);
  padding:10px 14px;
  border-radius:14px;
  font-weight:700;
  border:1px solid rgba(255,255,255,0.08);
  box-shadow: 0 10px 18px rgba(0,0,0,0.18);
}
.btn:hover{ text-decoration:none; filter:brightness(0.97); }
.btn.ghost{
  background: transparent;
  color: var(--text);
  border: 1px solid rgba(241,245,255,0.18);
  box-shadow:none;
}

.section{ padding:34px 0; }
.section.compact{ padding:22px 0; }

h1{ font-size: clamp(28px, 4.1vw, 46px); line-height:1.08; margin:0 0 12px; }
h2{ margin:0 0 10px; font-size:22px; }
h3{ margin:0 0 8px; font-size:18px; }
.lead{ color:var(--muted); font-size:18px; margin:0 0 16px; }
.small{ color:var(--muted); font-size:13px; margin-top:10px; }

.grid-2{
  display:grid;
  grid-template-columns: repeat(2, 1fr);
  gap:16px;
}
.grid-3{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:16px;
}
.stack{ display:flex; flex-direction:column; gap:16px; }

.panel, .card{
  background: var(--panel);
  border:1px solid var(--line);
  border-radius:20px;
  padding:18px;
  box-shadow: var(--shadow);
  transition: transform 0.14s ease, border-color 0.14s ease;
}
.panel:hover{ transform: translateY(-2px); border-color: rgba(241,245,255,0.26); }

.checklist{ margin:10px 0 0; padding-left:18px; color: var(--muted); }
.checklist li{ margin:6px 0; }

.banner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding:18px;
  border-radius:20px;
  border:1px solid rgba(241,245,255,0.14);
  background: rgba(241,245,255,0.06);
}

.site-footer{
  border-top:1px solid var(--line);
  padding:18px 0;
  color:var(--muted);
}
.footer-row{
  display:flex;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
}

/* Hero */
.hero{
  position: relative;
  padding:64px 0 44px;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(90deg,
      rgba(7,10,18,0.92) 0%,
      rgba(7,10,18,0.60) 55%,
      rgba(7,10,18,0.35) 100%),
    url("hero.png");
  background-size: cover;
  background-position: center;
  filter: saturate(0.95) contrast(1.02);
  transform: scale(1.02);
}
.hero::after{
  /* subtle top vignette */
  content:"";
  position:absolute;
  inset:0;
  background: radial-gradient(900px 520px at 25% 10%, rgba(255,255,255,0.10) 0%, rgba(255,255,255,0.00) 60%);
  pointer-events:none;
}
.hero > .wrap{ position: relative; z-index: 1; }

.hero-grid{
  display:grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap:22px;
  align-items:start;
}

.kicker{
  display:inline-flex;
  gap:10px;
  flex-wrap:wrap;
  margin-top: 14px;
  color: var(--muted);
  font-size: 14px;
}
.kicker span{
  border: 1px solid rgba(241,245,255,0.14);
  background: rgba(7,10,18,0.30);
  padding:6px 10px;
  border-radius:999px;
}

/* Background sections */
.bg-water{ background: url("water_texture.png"); background-size: cover; background-position: center; }
.bg-stone{ background: url("stone_texture.png"); background-size: cover; background-position: center; }
.bg-air{ background: url("air_gradient.png"); background-size: cover; background-position: center; }

.bg-overlay{
  position: relative;
}
.bg-overlay::before{
  content:"";
  position:absolute;
  inset:0;
  background: rgba(7,10,18,0.72);
  pointer-events:none;
}
.bg-overlay > .wrap{ position: relative; z-index: 1; }

/* Page title */
.page-hero{
  padding: 40px 0 22px;
  border-bottom:1px solid var(--line);
  background: linear-gradient(180deg, rgba(241,245,255,0.06), rgba(241,245,255,0.00));
}

@media (max-width: 880px){
  .hero-grid{ grid-template-columns: 1fr; }
  .grid-3{ grid-template-columns: 1fr; }
  .grid-2{ grid-template-columns: 1fr; }
  .hero{ padding:58px 0 32px; }
}