/* Base styles */
:root{
  --bg:#0b0b0b;
  --bg-2:#121212;
  --text:#f3f3f3;
  --muted:#b7b7b7;
  --brand:#4da3ff;
  --card:#1a1a1a;
  --card-2:#202020;
  --maxw:1100px;
  --radius:14px;
  --gap:20px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font:16px/1.6 system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background:var(--bg);
  color:var(--text);
}

img{max-width:100%;height:auto;display:block;border-radius:12px}
a{color:var(--brand);text-decoration:none}
.container{max-width:var(--maxw);margin-inline:auto;padding:0 20px}

.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(11,11,11,.8);backdrop-filter:saturate(180%) blur(8px);
  border-bottom:1px solid #222;
}
.nav-container{display:flex;align-items:center;justify-content:space-between;min-height:64px}
.brand{font-weight:700;font-size:1.1rem;color:var(--text)}

.site-nav ul{display:flex;gap:14px;list-style:none;margin:0;padding:0}
.site-nav a{display:block;padding:10px 12px;border-radius:10px;color:var(--text);transition:background .2s}
.site-nav a:hover{background:#1b1b1b}

/* Active navigation state */
.site-nav a.active {
  background: var(--brand);
  color: #001020;
  font-weight: 700;
}

.nav-toggle{display:none;flex-direction:column;gap:4px;background:transparent;border:0;cursor:pointer; z-index:1100;}
.nav-toggle-bar{width:22px;height:2px;background:var(--text)}

/* Hero */
.hero{
  display:grid;grid-template-columns:1.1fr .9fr;gap:var(--gap);
  padding:40px 0 10px 0;align-items:center;
}
.hero-text h1{font-size:2.4rem;line-height:1.1;margin:0 0 10px}
.hero-text p{color:var(--muted);margin:0 0 20px}
.cta-group{display:flex;gap:12px;flex-wrap:wrap}

.btn{display:inline-block;padding:12px 18px;border-radius:12px;background:#222;color:var(--text)}
.btn.primary{background:var(--brand);color:#001020;font-weight:700}
.btn:hover{filter:brightness(1.1)}

.section{padding:50px 0}
.section h2{font-size:1.8rem;margin:0 0 14px}

.grid{display:grid;gap:var(--gap)}
.grid.two{grid-template-columns:1fr 1fr}
.grid.three{grid-template-columns:repeat(3,1fr)}

.card{background:var(--card);border:1px solid #242424;border-radius:var(--radius);padding:18px}
.card.muted{background:var(--card-2)}

.checks{list-style:none;padding:0;margin:10px 0 0}
.checks li{padding-left:26px;position:relative;margin:8px 0;color:var(--muted)}
.checks li::before{content:"✓";position:absolute;left:0;top:0;color:var(--brand)}

.gallery figure{margin:0}
.gallery figcaption{margin-top:8px;color:var(--muted);font-size:.9rem}

.site-footer{border-top:1px solid #222;padding:30px 0;color:var(--muted)}

/* Forms */
label{display:block}
label span{display:block;margin:8px 0 6px}
input,textarea{
  width:100%;padding:12px 14px;border-radius:12px;border:1px solid #2a2a2a;background:#111;color:var(--text)
}
input:focus,textarea:focus{outline:2px solid var(--brand);border-color:var(--brand)}
.form-status{margin-top:10px;color:var(--muted)}

/* ===== Responsive ===== */
@media (max-width: 900px){
  .hero{grid-template-columns:1fr}

  /* Mobile navigation fixes */
  .site-nav {
    position: fixed;
    top: 64px; /* below header */
    left: 0;
    width: 100%;
    height: calc(100% - 64px);
    background: rgba(11,11,11,.98);
    transform: translateY(-100%);
    transition: transform .25s ease, opacity .25s ease;
    opacity: 0;
    display: flex;
    justify-content: center;
    align-items: center;
  }

  .site-nav.open {
    transform: translateY(0);
    opacity: 1;
  }

  .site-nav ul {
    flex-direction: column;
    gap: 20px;
    text-align: center;
    padding: 16px;
  }

  .nav-toggle {
    display:flex;
  }
}