:root{
  --bg:#0f1724;
  --card:#0b1220;
  --muted:#9aa4b2;
  --accent:#6ee7b7;
  --accent-2:#7c5cff;
  --text:#e6eef6;
  --radius:12px;
  --container:1100px;
  --gap:24px;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  color-scheme: dark;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background:linear-gradient(180deg,#071126 0%, #071826 100%);
  color:var(--text);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  line-height:1.5;
}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:48px 20px;
}

/* Header */
.site-header{position:sticky;top:0;z-index:40;background:rgba(6,10,16,0.45);backdrop-filter:blur(6px);border-bottom:1px solid rgba(255,255,255,0.03)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.brand{font-weight:800;color:var(--text);text-decoration:none;font-size:1.1rem}
.site-nav ul{list-style:none;margin:0;padding:0;display:flex;gap:18px;align-items:center}
.site-nav a{color:var(--muted);text-decoration:none;padding:8px;border-radius:8px}
.site-nav a:hover{color:var(--text);background:rgba(255,255,255,0.02)}
.nav-toggle{display:none;background:none;border:0;padding:8px;border-radius:8px;cursor:pointer}
.hamburger{display:block;width:20px;height:2px;background:var(--text);position:relative}
.hamburger::after,.hamburger::before{content:"";position:absolute;left:0;width:20px;height:2px;background:var(--text)}
.hamburger::before{top:-6px}
.hamburger::after{top:6px}

/* Hero */
.hero{padding:64px 0;background:linear-gradient(180deg,rgba(124,92,255,0.08),transparent 40%)}
.hero-inner{display:grid;grid-template-columns:1fr 420px;gap:32px;align-items:center}
.hero-title{font-size:2.2rem;margin:0 0 12px;font-weight:700;line-height:1.05}
.lead{color:var(--muted);margin:0 0 20px}
.accent{background:linear-gradient(90deg,var(--accent),var(--accent-2));-webkit-background-clip:text;color:transparent}
.btn{display:inline-block;padding:10px 14px;border-radius:10px;text-decoration:none;font-weight:600}
.btn.primary{background:linear-gradient(90deg,var(--accent),var(--accent-2));color:#071126}
.btn.ghost{border:1px solid rgba(255,255,255,0.06);color:var(--text);background:transparent;margin-left:8px}
.btn.small{padding:8px 10px;font-size:0.9rem}

/* Hero visual mockup */
.mockup-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.screen{background:linear-gradient(180deg,rgba(255,255,255,0.03),rgba(255,255,255,0.01));padding:36px;border-radius:12px;color:var(--muted);display:flex;align-items:center;justify-content:center;font-weight:600}

/* Projects */
.section{padding:64px 0}
.section-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.filters{display:flex;gap:8px}
.filter{background:transparent;border:1px solid rgba(255,255,255,0.03);color:var(--muted);padding:8px 12px;border-radius:10px;cursor:pointer}
.filter.active{background:linear-gradient(90deg,var(--accent),var(--accent-2));color:#071126;border:none}

/* Grid */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:var(--card);border-radius:12px;overflow:hidden;box-shadow:0 6px 20px rgba(2,6,23,0.6)}
.card img{width:100%;height:160px;object-fit:cover;display:block}
.card-body{padding:16px}
.card-body h3{margin:0 0 6px}
.muted{color:var(--muted);font-size:0.95rem}
.card-actions{display:flex;gap:12px;align-items:center;margin-top:12px}

/* About */
.about-grid{display:grid;grid-template-columns:1fr 320px;gap:28px;align-items:center}
.profile img{width:100%;border-radius:12px;object-fit:cover}

/* Contact */
.contact-form{max-width:720px;display:grid;gap:12px}
.contact-form label{display:block}
.contact-form input, .contact-form textarea{width:100%;padding:12px;border-radius:10px;border:1px solid rgba(255,255,255,0.04);background:transparent;color:var(--text)}
.label{display:block;color:var(--muted);margin-bottom:6px;font-size:0.9rem}

/* Footer */
.site-footer{border-top:1px solid rgba(255,255,255,0.03);padding:24px 0;text-align:center;color:var(--muted);font-size:0.95rem}

/* Responsiveness */
@media (max-width:980px){
  .grid{grid-template-columns:repeat(2,1fr)}
  .hero-inner{grid-template-columns:1fr}
  .hero-visual{order:2}
  .about-grid{grid-template-columns:1fr}
}

@media (max-width:700px){
  .site-nav{display:none}
  .nav-toggle{display:inline-flex}
  .grid{grid-template-columns:1fr}
  .profile{order:2}
  .header-inner{gap:12px}
  .container{padding:28px 16px}
  .hero{padding:40px 0}
}

/* Mobile nav when active */
.site-nav.open{display:block;background:transparent;padding-top:12px}
.site-nav.open ul{flex-direction:column;gap:8px}
.uc-logo {
  width: 140px;
  height: auto;
  display: block;
  margin: 0 auto 18px;
  border-radius: 10px;
  box-shadow: 0 8px 26px rgba(2,6,23,0.55);
}