/* -------- Design tokens -------- */
:root{
  --bg:#0b0f19;
  --bg-soft:#101728;
  --surface:#121829;
  --card:#0f1424;
  --text:#e6eaf2;
  --muted:#a8b0c3;
  --primary:#6ea8fe;
  --primary-700:#3e7be0;
  --ring:rgba(110,168,254,.35);
  --border:rgba(255,255,255,.08);
  --shadow:0 18px 40px rgba(0,0,0,.45);
  --radius:16px;
  --container:1120px;
}

*{box-sizing:border-box}
html,body{height:100%}
html:focus-within{scroll-behavior:smooth}

body{
  margin:0;
  font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  color:var(--text);
  background:
    radial-gradient(1200px 800px at 80% -10%, #1b2140 0%, rgba(27,33,64,0) 55%),
    radial-gradient(1000px 700px at -20% 10%, #17203a 0%, rgba(23,32,58,0) 50%),
    var(--bg);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

.container{max-width:var(--container);margin:0 auto;padding:0 20px}
a{color:inherit;text-decoration:none}
a:hover{text-decoration:underline;text-decoration-color:rgba(255,255,255,.25)}
img{max-width:100%;display:block}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

/* Skip link */
.skip-link{
  position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden
}
.skip-link:focus{
  position:fixed;left:16px;top:16px;width:auto;height:auto;padding:8px 12px;
  background:var(--surface);border:1px solid var(--border);border-radius:10px;z-index:1000
}

/* -------- Header -------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(11,15,25,.6);
  backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.2px}
.brand-dot{width:12px;height:12px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--primary-700));
  box-shadow:0 0 0 6px var(--ring);
}
.brand-text{white-space:nowrap}
.nav-links{display:flex;gap:22px}
.nav-links a{
  color:var(--muted);font-weight:600;padding:8px 10px;border-radius:10px
}
.nav-links a:hover{color:var(--text);background:rgba(255,255,255,.04);text-decoration:none}
.nav-toggle{
  display:none;width:40px;height:40px;align-items:center;justify-content:center;
  border:1px solid var(--border);border-radius:10px;background:transparent;color:var(--text)
}

/* Drawer */
.drawer{
  position:fixed;left:16px;right:16px;top:64px;padding:12px;border-radius:12px;
  background:rgba(15,20,36,.98);border:1px solid var(--border);
  box-shadow:var(--shadow);transform:translateY(-16px);opacity:0;pointer-events:none
}
.drawer[hidden]{display:block;opacity:0;transform:translateY(-16px);pointer-events:none}
.drawer:not([hidden]){opacity:1;transform:translateY(0);pointer-events:auto}
.drawer a{display:block;padding:10px 12px;border-radius:8px}
.drawer a:hover{background:rgba(255,255,255,.06);text-decoration:none}

/* -------- Sections -------- */
.section{padding:64px 0}
.section-header{margin-bottom:18px}
.section-title{font-size:28px;margin:0 0 6px;font-weight:800;letter-spacing:-.01em}
.section-title::after{
  content:"";display:block;width:64px;height:3px;background:var(--primary);
  margin-top:8px;border-radius:2px
}
.section-subtitle{color:var(--muted);margin:0}

/* -------- Hero -------- */
.hero{padding-top:84px}
.hero-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:32px;align-items:center}
.badge{
  display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;
  background:rgba(110,168,254,.08);color:var(--primary);
  border:1px solid rgba(110,168,254,.25);font-weight:700;letter-spacing:.3px
}
h1{margin:14px 0 12px;font-size:42px;line-height:1.12;letter-spacing:-.02em}
.subtitle{color:var(--muted);font-size:18px;margin-bottom:16px}
.trusts{display:flex;gap:12px;flex-wrap:wrap;padding:0;margin:10px 0 0;list-style:none}
.trusts li{
  font-size:13px;color:var(--text);border:1px solid var(--border);border-radius:999px;
  padding:6px 10px;background:rgba(255,255,255,.03)
}
.cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:10px}
.btn{
  padding:12px 16px;border-radius:12px;border:1px solid var(--border);color:var(--text);
  background:rgba(255,255,255,.02);font-weight:700;
  transition:transform .18s ease, box-shadow .18s ease, background-color .18s ease, opacity .18s ease
}
.btn:hover{transform:translateY(-2px) scale(1.02);box-shadow:0 8px 20px rgba(110,168,254,.2)}
.btn:active{transform:translateY(0);opacity:.95}
.btn.primary{background:linear-gradient(180deg,var(--primary),var(--primary-700));border-color:transparent;box-shadow:0 10px 24px rgba(110,168,254,.35)}
.btn.ghost{background:transparent}

.hero-card{
  background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)
}
.hero-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.stat{background:var(--card);border:1px solid rgba(255,255,255,.06);border-radius:14px;padding:16px;text-align:center}
.stat h3{margin:0;font-size:22px}
.stat p{margin:6px 0 0;color:var(--muted);font-size:14px}

/* -------- Cards / About -------- */
.card{
  background:rgba(255,255,255,.03);border:1px solid var(--border);border-radius:var(--radius);
  padding:20px;box-shadow:var(--shadow);transform:translateY(0);transition:transform .18s ease, box-shadow .18s ease
}
.card:hover{transform:translateY(-6px);box-shadow:0 14px 30px rgba(0,0,0,.45)}
.about-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:20px}
.muted{color:var(--muted)}

/* -------- Skills -------- */
.skills-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;list-style:none;padding:0;margin:0}
.skill{
  background:var(--card);border:1px solid rgba(255,255,255,.06);border-radius:12px;
  padding:12px 14px;display:flex;align-items:center;gap:10px;justify-content:center;
  font-weight:700
}
.skill:hover{box-shadow:0 0 0 6px var(--ring) inset}

/* Minimal icon placeholders (you can replace with SVGs/logos later) */
.ic{width:16px;height:16px;display:inline-block;border-radius:3px;background:var(--primary)}
.ic-python{background:linear-gradient(45deg,#3b82f6,#22c55e)}
.ic-dotnet{background:linear-gradient(45deg,#a78bfa,#6366f1)}
.ic-sql{background:linear-gradient(45deg,#06b6d4,#0ea5e9)}
.ic-c{background:linear-gradient(45deg,#ef4444,#f59e0b)}
.ic-html{background:linear-gradient(45deg,#f97316,#ef4444)}
.ic-java{background:linear-gradient(45deg,#f59e0b,#84cc16)}
.ic-js{background:linear-gradient(45deg,#eab308,#f59e0b)}
.ic-react{background:linear-gradient(45deg,#38bdf8,#60a5fa)}

/* -------- Projects -------- */
.projects-grid{display:grid;grid-template-columns:1fr;gap:18px}
.project-card{display:grid;grid-template-columns:1.15fr 1.85fr;gap:18px;align-items:stretch}
.project-media{position:relative;overflow:hidden;border-radius:12px;background:#0b1223;border:1px solid var(--border)}
.project-media img{width:100%;height:100%;object-fit:cover;transform:scale(1);transition:transform .35s ease}
.project-media:hover img{transform:scale(1.06)}
.project-content{display:grid;gap:10px}
.project-title{margin:0;font-size:22px}
.project-desc{margin:0;color:var(--muted)}
.bullets{margin:0;padding-left:18px;color:var(--muted)}
.project-tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{background:rgba(255,255,255,.04);border:1px solid var(--border);padding:4px 10px;border-radius:999px;font-size:12px}

/* -------- Timeline -------- */
.timeline{display:grid;grid-template-columns:1fr;gap:12px;padding:0;margin:0;list-style:none}
.timeline-item{display:grid;grid-template-columns:24px 1fr;gap:14px;align-items:start}
.dot{width:12px;height:12px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 6px var(--ring);margin-top:6px}
.timeline-content h4{margin:0;font-size:18px}
.timeline-content p{margin:6px 0 0;color:var(--muted)}

/* -------- Contact -------- */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:20px;align-items:start}
.contact-form{display:grid;gap:12px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.form-field{display:grid;gap:6px}
.form-field label{font-weight:700}
.form-field input,.form-field textarea{
  width:100%;padding:12px 12px;border-radius:12px;border:1px solid var(--border);
  background:rgba(255,255,255,.02);color:var(--text);outline:none
}
.form-field input::placeholder,.form-field textarea::placeholder{color:#8f97aa}
.form-hint{margin:4px 0 0;color:var(--muted);font-size:12px}

/* -------- Footer -------- */
.site-footer{padding:30px 0 56px;color:var(--muted);text-align:center;border-top:1px solid rgba(255,255,255,.06)}

/* -------- Reveal on scroll -------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s ease, transform .5s ease}
.reveal.in{opacity:1;transform:translateY(0)}

/* -------- Responsive -------- */
@media (max-width: 960px){
  .hero-inner{grid-template-columns:1fr}
  .about-grid{grid-template-columns:1fr}
  .skills-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .project-card{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
}
@media (max-width: 720px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  h1{font-size:34px}
}
@media (max-width: 420px){
  .skills-grid{grid-template-columns:1fr}
}