:root{
  --bg: #0b1220;
  --bg-alt: #0e1626;
  --fg: #eef2ff;
  --muted: #c7d2fe;
  --accent: #60a5fa;
  --accent-2: #22d3ee;
  --card: #111827;
  --border: #243047;
  --shadow: 0 10px 30px rgba(0,0,0,0.35);
}

/* Base & resets */
*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: linear-gradient(180deg, var(--bg), var(--bg-alt));
  color: var(--fg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-size: clamp(16px, 2.4vw, 18px);
}

/* Accessibility helpers */
.skip-link{
  position: absolute;
  top:-40px; left: 0;
  background: var(--accent);
  color:#0b1220; padding:10px 14px; border-radius:0 0 8px 0;
  text-decoration:none; font-weight:700;
}
.skip-link:focus{ top:0; }

.sr-only{
  position:absolute !important; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0;
}

.container{ max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* Header */
.site-header{
  position: sticky; top:0; z-index: 50;
  backdrop-filter: saturate(140%) blur(6px);
  background: rgba(11,18,32,0.7);
  border-bottom: 1px solid var(--border);
}
.nav{ display:flex; align-items:center; justify-content:space-between; min-height: 64px; gap: 10px; }
.site-name{ font-weight: 700; letter-spacing: 0.5px; text-decoration:none; color: var(--fg); font-size: 1.15rem; }
.site-name .accent{ color: var(--accent); }

/* Mobile menu */
.menu-toggle{
  display:inline-flex; flex-direction:column; justify-content:center; align-items:center;
  width:42px; height:42px; border-radius:10px;
  background: transparent; border:1px solid var(--border); cursor:pointer;
}
.menu-toggle:focus-visible{ outline: 2px solid var(--accent); outline-offset: 2px; }
.menu-line{ display:block; width:20px; height:2px; background: var(--fg); margin:3px 0; border-radius:2px; }

.menu{
  display:none; position: fixed; inset: 64px 0 auto 0; /* under header */
  background: rgba(11,18,32,0.98); border-bottom:1px solid var(--border);
  padding: 14px 20px; gap: 12px;
}
.menu.open{ display:flex; flex-direction:column; }
.menu .nav-link{ color: var(--muted); text-decoration:none; font-size: 1.05rem; padding:12px 8px; border-radius:10px; }
.menu .nav-link:focus-visible, .menu .nav-link:hover{ color: var(--fg); background: rgba(255,255,255,0.03); }

@media (min-width: 900px){
  .menu{ display:flex; position:static; background: transparent; border:0; padding:0; flex-direction:row; }
  .menu-toggle{ display:none; }
  .menu .nav-link{ margin-left: 18px; padding:0; }
}

/* Hero */
.hero{ padding: 88px 0 48px; text-align:center;
  background:
    radial-gradient(1000px 500px at 50% -50%, rgba(96,165,250,0.18), transparent 70%),
    radial-gradient(800px 400px at 20% 0%, rgba(34,211,238,0.14), transparent 60%);
}
.hero-inner h1{ font-size: clamp(1.9rem, 4.5vw, 3rem); line-height:1.15; margin:0; }
.hero-inner p{ margin: 14px auto 24px; max-width: 720px; color: var(--muted); }
.hero-points{ list-style:none; margin: 18px 0 0; padding:0; display:flex; gap:8px; flex-wrap:wrap; justify-content:center; opacity:0.9; }

.cta-row{ display:flex; gap:12px; justify-content:center; flex-wrap:wrap; }
.btn{
  display:inline-block; min-height:44px; padding:12px 18px; border-radius: 12px; text-decoration:none; font-weight:700;
  border: 1px solid var(--border); line-height:1;
}
.btn-primary{ background: linear-gradient(90deg, var(--accent), var(--accent-2)); color:#0b1220; }
.btn-outline{ color: var(--fg); }
.btn:hover{ transform: translateY(-1px); box-shadow: var(--shadow); }
.btn:focus-visible{ outline: 2px solid var(--accent); outline-offset: 2px; }

/* Sections */
.section{ padding: 56px 0; }
.section-alt{ background: rgba(255,255,255,0.02); border-top:1px solid var(--border); border-bottom:1px solid var(--border); }
.section h2{ font-size: clamp(1.35rem, 3vw, 2rem); margin:0 0 8px; }
.section-lead{ color: var(--muted); margin: 8px 0 24px; }

/* Cards */
.cards{ display:grid; grid-template-columns: repeat(1, minmax(0,1fr)); gap: 14px; }
@media (min-width: 720px){ .cards{ grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (min-width: 1100px){ .cards{ grid-template-columns: repeat(3, minmax(0,1fr)); } }

.card{
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px; padding: 18px 18px 14px; box-shadow: var(--shadow);
}
.card h3{ margin-top:0; font-size:1.15rem; }
.card p{ color: var(--muted); margin-bottom:10px; }
.card ul{ padding-left: 18px; margin: 0; color: var(--muted); }

/* Process */
.process-grid{ display:grid; gap: 14px; grid-template-columns: repeat(1, minmax(0, 1fr)); }
@media (min-width: 960px){ .process-grid{ grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.step{
  background: var(--card); border:1px solid var(--border); border-radius:16px; padding:18px; box-shadow: var(--shadow);
  position: relative; overflow:hidden;
}
.step-num{ position:absolute; top:8px; right:12px; font-weight:700; opacity:0.08; font-size:3rem; }
.step h3{ margin:6px 0 8px; }
.step .why{ color: var(--muted); border-top:1px dashed var(--border); padding-top:10px; margin-top:10px; }

/* Contact */
.contact{ text-align:center; }
.email a{ color: var(--accent); font-weight:700; text-decoration:none; }
.email a:hover{ text-decoration:underline; }

.contact-form{
  margin: 16px auto 0; display:grid; gap:10px; max-width: 640px;
}
.contact-form input, .contact-form textarea{
  width:100%; background: #0f1729; color: var(--fg); border:1px solid var(--border); border-radius:12px;
  padding:12px 14px; font: inherit;
}
.contact-form input::placeholder, .contact-form textarea::placeholder{ color: #97a3c0; }
.contact-form input:focus, .contact-form textarea:focus{ outline:2px solid var(--accent); outline-offset:2px; }

/* Footer */
.site-footer{ border-top: 1px solid var(--border); background: rgba(255,255,255,0.02); padding: 20px 0; }
.footer-inner{ display:flex; align-items:center; justify-content:space-between; gap: 10px; flex-wrap: wrap; }
.footer-nav a{ color: var(--muted); text-decoration:none; margin-left: 14px; }
.footer-nav a:hover, .footer-nav a:focus-visible{ color: var(--fg); }

/* Reduced motion */
@media (prefers-reduced-motion: reduce){
  *{ animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}