:root {
  --bg: #0d1117;
  --surface: #161b22;
  --surface-2: #1c2330;
  --text: #e6edf3;
  --muted: #9aa7b4;
  --accent: #29b5e8;
  --border: #263040;
  --radius: 14px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }

/* NAV */
.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 6vw;
  background: rgba(13, 17, 23, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.brand {
  font-weight: 800;
  font-size: 20px;
  color: var(--accent);
  border: 2px solid var(--accent);
  border-radius: 10px;
  padding: 2px 10px;
}
.nav nav a {
  margin-left: 22px;
  color: var(--muted);
  font-weight: 600;
  font-size: 15px;
  transition: color 0.2s;
}
.nav nav a:hover { color: var(--accent); }

/* HERO */
.hero {
  max-width: 820px;
  margin: 0 auto;
  padding: 90px 6vw 70px;
  text-align: center;
}
.eyebrow { color: var(--accent); font-weight: 600; margin: 0 0 6px; letter-spacing: 0.5px; }
.hero h1 { font-size: clamp(38px, 7vw, 64px); margin: 0; font-weight: 800; }
.hero h2 { font-size: clamp(18px, 3vw, 24px); color: var(--muted); font-weight: 600; margin: 10px 0 20px; }
.lead { color: var(--muted); font-size: 18px; max-width: 640px; margin: 0 auto 30px; }

.cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn {
  padding: 12px 22px;
  border-radius: 10px;
  font-weight: 600;
  border: 1px solid var(--border);
  transition: transform 0.15s, background 0.2s;
}
.btn:hover { transform: translateY(-2px); }
.btn.primary { background: var(--accent); color: #04222e; border-color: var(--accent); }
.btn.ghost { background: transparent; color: var(--text); }
.btn.ghost:hover { border-color: var(--accent); color: var(--accent); }

/* BLOCKS */
.block {
  max-width: 960px;
  margin: 0 auto;
  padding: 50px 6vw;
  border-top: 1px solid var(--border);
}
.block h3 {
  font-size: 26px;
  margin: 0 0 22px;
  display: inline-block;
  border-bottom: 3px solid var(--accent);
  padding-bottom: 6px;
}
.block p { color: var(--muted); max-width: 720px; }

.badges { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.badges li {
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 7px 14px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
}

/* SKILLS */
.skills { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.skill-group {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
}
.skill-group h4 { margin: 0 0 8px; color: var(--accent); font-size: 16px; }
.skill-group p { margin: 0; color: var(--text); font-size: 15px; }

/* PROJECTS */
.projects { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 18px; }
.card {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  transition: transform 0.15s, border-color 0.2s;
}
.card:hover { transform: translateY(-4px); border-color: var(--accent); }
.card h4 { margin: 0 0 8px; font-size: 18px; }
.card p { margin: 0 0 14px; color: var(--muted); font-size: 15px; }
.tags { color: var(--accent); font-size: 13px; font-weight: 600; }

/* CONTACT + FOOTER */
.contact { text-align: center; }
.contact .cta { margin-top: 22px; }
footer { text-align: center; padding: 30px 6vw; color: var(--muted); font-size: 14px; border-top: 1px solid var(--border); }

@media (max-width: 560px) {
  .nav nav a { margin-left: 14px; font-size: 14px; }
  .hero { padding-top: 60px; }
}