:root {
  --bg: #0a0f1c;
  --surface: #10162a;
  --text: #e6eaf2;
  --muted: #9aa4b3;
  --primary: #22d3ee; /* cyan */
  --primary-700: #0891b2;
  --accent: #7c3aed; /* violet */
  --success: #22c55e;
  --danger: #ef4444;
  --shadow: 0 10px 20px rgba(0, 0, 0, 0.35);
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0; font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, 'Helvetica Neue', Arial;
  background: radial-gradient(1200px 600px at 10% 10%, rgba(124,58,237,.15), transparent),
              radial-gradient(800px 400px at 90% 20%, rgba(34,211,238,.10), transparent), var(--bg);
  color: var(--text);
}
.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* Header */
.site-header { position: sticky; top: 0; backdrop-filter: blur(10px); background: rgba(10,15,28,0.7); border-bottom: 1px solid #1f2937; z-index: 50; }
.nav { display: flex; align-items: center; justify-content: space-between; padding: 14px 0; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 600; }
.brand img { width: 28px; height: 28px; }
nav a { color: var(--text); text-decoration: none; margin-left: 18px; font-weight: 500; }
nav a:hover { color: var(--primary); }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 10px; padding: 10px 16px; border-radius: 10px; border: 1px solid #243044; text-decoration: none; transition: transform .1s ease, box-shadow .1s ease; }
.btn:hover { transform: translateY(-1px); box-shadow: var(--shadow); }
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--accent)); color: #081019; border: none; font-weight: 600; }
.btn-secondary { background: transparent; color: var(--text); }

/* Hero */
.hero { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 40px; align-items: center; padding: 72px 0; }
.hero h1 { font-size: clamp(28px, 5vw, 48px); line-height: 1.1; margin: 0 0 10px; }
.hero p { color: var(--muted); font-size: 18px; }
.hero-cta { display: flex; gap: 14px; margin-top: 20px; }
.hero-visual { display: flex; justify-content: center; }
.glass-card { width: 320px; padding: 18px; border-radius: 14px; background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.12); box-shadow: var(--shadow); }
.glass-card .stat { display: flex; align-items: baseline; justify-content: space-between; padding: 10px 12px; border-radius: 10px; background: rgba(8,16,25,0.6); border: 1px solid rgba(255,255,255,0.08); }
.glass-card .stat + .stat { margin-top: 12px; }
.glass-card .stat span { font-weight: 700; color: var(--primary); }
.glass-card .stat small { color: var(--muted); }
.accent { background: linear-gradient(90deg, var(--primary), var(--accent)); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* Sections */
.section { padding: 60px 0; }
.section h2 { font-size: 28px; margin-bottom: 24px; }
.grid { display: grid; gap: 18px; }
.cards { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.card { background: var(--surface); border: 1px solid #1f2937; border-radius: 12px; padding: 18px; box-shadow: var(--shadow); }
.card h3 { margin-top: 0; }

.portfolio { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.portfolio-item { background: var(--surface); border: 1px solid #1f2937; border-radius: 12px; padding: 18px; box-shadow: var(--shadow); }
.item-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.tag { font-size: 12px; padding: 4px 8px; border-radius: 999px; background: rgba(34,211,238,0.15); color: var(--primary); border: 1px dashed var(--primary-700); }

.checklist { list-style: none; margin: 0; padding: 0; }
.checklist li { background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="%2322c55e"><path d="M9 16.2l-3.5-3.5L4 14.2l5 5 12-12-1.4-1.4z"/></svg>') left 0.2em/18px no-repeat; padding-left: 28px; margin: 10px 0; color: var(--muted); }

/* Contact */
.contact-form { background: var(--surface); border: 1px solid #1f2937; border-radius: 12px; padding: 18px; box-shadow: var(--shadow); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
label { color: var(--muted); font-size: 14px; }
input, textarea { width: 100%; margin-top: 6px; padding: 10px 12px; border-radius: 10px; border: 1px solid #243044; background: #0c1324; color: var(--text); }
textarea { resize: vertical; }
.small { color: var(--muted); font-size: 13px; }

/* Footer */
.site-footer { border-top: 1px solid #1f2937; margin-top: 40px; }
.footer-grid { display: flex; align-items: center; justify-content: space-between; padding: 20px 0; }
.footer-nav a { color: var(--muted); text-decoration: none; margin-right: 12px; }
.footer-nav a:hover { color: var(--primary); }

/* Animations */
[data-animate] { opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
[data-animate].in { opacity: 1; transform: translateY(0); }

/* Responsive */
@media (max-width: 900px) { .hero { grid-template-columns: 1fr; } .hero-visual { order: -1; } }
@media (max-width: 640px) { .form-grid { grid-template-columns: 1fr; } nav { display: none; } }