:root{
  --bg:#0b0f17;
  --panel:#111a2b;
  --panel2:#0f1626;
  --text:#e9efff;
  --muted:#aab6d1;
  --accent:#6ee7ff;
  --line:rgba(255,255,255,.10);
  --shadow: 0 12px 30px rgba(0,0,0,.35);
  --radius: 18px;
  --max: 1100px;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  line-height:1.6;
  color:var(--text);
  background:
    radial-gradient(1200px 700px at 20% 0%, rgba(110,231,255,.12), transparent 60%),
    radial-gradient(1000px 600px at 90% 20%, rgba(110,231,255,.08), transparent 55%),
    var(--bg);
}

.container{ width:min(var(--max), calc(100% - 2rem)); margin:0 auto; }

.site-header{
  position:sticky; top:0; z-index:10;
  backdrop-filter: blur(12px);
  background: rgba(11,15,23,.65);
  border-bottom: 1px solid var(--line);
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  padding: .95rem 0;
  gap:1rem;
}
.brand{ display:flex; gap:.7rem; align-items:baseline; flex-wrap:wrap; }
.brand-name{ font-weight:800; letter-spacing:.2px; }
.brand-id{
  color:var(--muted);
  font-size:.95rem;
  padding:.15rem .6rem;
  border:1px solid var(--line);
  border-radius:999px;
  background: rgba(255,255,255,.03);
}

.site-nav{ display:flex; gap:.5rem; flex-wrap:wrap; }
.nav-link{
  text-decoration:none;
  color:var(--muted);
  padding:.55rem .85rem;
  border-radius:999px;
  border:1px solid transparent;
}
.nav-link:hover{
  color:var(--text);
  border-color: var(--line);
  background: rgba(255,255,255,.04);
}
.nav-link.active{
  color:var(--text);
  border-color: rgba(110,231,255,.35);
  background: rgba(110,231,255,.08);
}

.hero{ padding: 2.7rem 0 1.6rem; }
.hero-inner{
  display:grid;
  grid-template-columns: 1.25fr .75fr;
  gap: 1.25rem;
  align-items: start;
}
.hero-text h1{
  margin:.2rem 0 .6rem;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height:1.1;
}
.hero-text p{ margin:0 0 1rem; color:var(--muted); font-size:1.05rem; }

.hero-media{
  background: linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.02));
  border:1px solid var(--line);
  border-radius: var(--radius);
  padding: .9rem;
  box-shadow: var(--shadow);
}
.hero-media img{
  width:100%;
  border-radius: 14px;
  display:block;
  border:1px solid rgba(255,255,255,.08);
}
.caption{ margin:.65rem 0 0; color:var(--muted); font-size:.95rem; }

.section{ padding: 2rem 0; }
.page-head{
  padding: 2.2rem 0 1.2rem;
  border-bottom:1px solid var(--line);
  background: rgba(255,255,255,.02);
}
.page-head h1{ margin:0 0 .6rem; font-size:2.2rem; }
.page-head p{ margin:0; color:var(--muted); }

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5rem;
  padding:.75rem 1.05rem;
  border-radius:999px;
  text-decoration:none;
  border:1px solid var(--line);
  color:var(--text);
  background: rgba(255,255,255,.04);
}
.btn.primary{
  background: rgba(110,231,255,.15);
  border-color: rgba(110,231,255,.40);
}
.btn:hover{ filter: brightness(1.06); }

.card{
  border:1px solid var(--line);
  background: rgba(255,255,255,.03);
  padding: 1.05rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.two-col{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

ul{ margin:.6rem 0 0; color:var(--muted); }

.form{ max-width: 680px; }
.field{ margin:0 0 1rem; }
label{ display:block; font-weight:700; margin:0 0 .45rem; }
input, textarea, select{
  width:100%;
  padding:.75rem .85rem;
  border-radius: 14px;
  border:1px solid var(--line);
  background: rgba(0,0,0,.18);
  color: var(--text);
}
textarea{ resize: vertical; }
.error{ color:#ffb4b4; min-height:1.2em; display:block; margin-top:.25rem; }
.status{ margin-top:.75rem; color: var(--muted); }

.clickable-figure{ margin: 1rem 0 0; }
.clickable{
  width:100%;
  border-radius: 14px;
  border: 1px solid var(--line);
  cursor: zoom-in;
  display:block;
}

.site-footer{
  border-top:1px solid var(--line);
  padding: 1.2rem 0;
  background: rgba(0,0,0,.18);
}
.footer-inner{
  display:flex;
  justify-content:space-between;
  gap: 1rem;
  flex-wrap:wrap;
}
.social{ display:flex; gap:.9rem; flex-wrap:wrap; }
.social a{ color:var(--muted); text-decoration:none; }
.social a:hover{ color:var(--text); text-decoration:underline; }

/* Modal */
.modal{ position:fixed; inset:0; display:none; }
.modal.open{ display:block; }
.modal-backdrop{ position:absolute; inset:0; background: rgba(0,0,0,.68); }
.modal-content{
  position: relative;
  width: min(980px, calc(100% - 2rem));
  margin: 6vh auto 0;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: .85rem;
  box-shadow: var(--shadow);
}
.modal-close{
  position:absolute; top:.65rem; right:.65rem;
  border:1px solid var(--line);
  background: rgba(255,255,255,.06);
  color: var(--text);
  border-radius: 12px;
  padding:.4rem .6rem;
  cursor:pointer;
}
#modalImg{ width:100%; height:auto; border-radius: 12px; display:block; }

@media (max-width: 900px){
  .hero-inner{ grid-template-columns: 1fr; }
  .two-col{ grid-template-columns: 1fr; }
}