*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:      #0b0f1a;
  --surface: #111827;
  --border:  #1e2d45;
  --blue:    #3b82f6;
  --blue2:   #1d4ed8;
  --text:    #e2e8f0;
  --muted:   #64748b;
  --faint:   #1a2540;
  --sans:    'Inter', sans-serif;
  --display: 'Syne', sans-serif;
}

html { font-size: 16px; scroll-behavior: smooth; }
body { background: var(--bg); color: var(--text); font-family: var(--sans); font-weight: 300; min-height: 100vh; overflow-x: hidden; }

/* ── NAV ── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; justify-content: space-between; align-items: center;
  padding: 1.25rem 4rem;
  background: rgba(11,15,26,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-logo { font-family: var(--display); font-size: 1.1rem; font-weight: 700; color: var(--text); text-decoration: none; }
.nav-links { display: flex; gap: 2.5rem; list-style: none; }
.nav-links a { font-size: 0.8rem; letter-spacing: 0.08em; color: var(--muted); text-decoration: none; transition: color 0.2s; }
.nav-links a:hover { color: var(--text); }
.nav-links a.active { color: var(--blue); }

/* ── BUTTONS ── */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.7rem 1.4rem;
  font-family: var(--sans); font-size: 0.8rem; font-weight: 500; letter-spacing: 0.06em;
  text-decoration: none; border: 1px solid var(--border);
  color: var(--muted); background: transparent;
  cursor: pointer; transition: all 0.2s; border-radius: 4px;
}
.btn:hover { border-color: var(--blue); color: var(--blue); }
.btn-primary { background: var(--blue); border-color: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue2); border-color: var(--blue2); color: #fff; }

/* ── SHARED LAYOUT ── */
.divider { height: 1px; background: var(--border); margin: 0 4rem; }
.section { padding: 5rem 4rem; }
.section-label { font-size: 0.7rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--blue); margin-bottom: 2.5rem; }

/* ── PROJECT CARDS (index) ── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1px; background: var(--border);
  border: 1px solid var(--border); border-radius: 8px; overflow: hidden;
}
.project-card { background: var(--surface); padding: 2rem; transition: background 0.2s; }
.project-card:hover { background: var(--faint); }
.project-card-top { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 1rem; }

/* ── PROJECT ROWS (projects page) ── */
.projects-list { display: flex; flex-direction: column; gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.project-row {
  background: var(--surface); padding: 2rem 2.5rem;
  display: grid; grid-template-columns: 1fr auto;
  gap: 2rem; align-items: start;
  transition: background 0.2s; text-decoration: none; color: inherit;
}
.project-row:hover { background: var(--faint); }
.project-row-top { display: flex; align-items: center; gap: 1rem; margin-bottom: 0.75rem; }
.project-row h3 { font-family: var(--display); font-size: 1.2rem; font-weight: 700; color: var(--text); }
.project-row p { font-size: 0.85rem; line-height: 1.7; color: var(--muted); max-width: 55ch; margin-bottom: 1.25rem; }
.project-row-right { display: flex; align-items: flex-start; padding-top: 0.25rem; }
.ext-link { font-size: 1.1rem; color: var(--muted); text-decoration: none; transition: color 0.2s; }
.ext-link:hover { color: var(--blue); }

/* ── SHARED PROJECT ELEMENTS ── */
.project-status {
  font-size: 0.65rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--blue); background: rgba(59,130,246,0.1);
  border: 1px solid rgba(59,130,246,0.2); padding: 0.2rem 0.6rem; border-radius: 3px;
  white-space: nowrap;
}
.project-status.done { color: #34d399; background: rgba(52,211,153,0.08); border-color: rgba(52,211,153,0.2); }
.project-link { color: var(--muted); font-size: 1rem; text-decoration: none; transition: color 0.2s; line-height: 1; }
.project-link:hover { color: var(--blue); }
.project-card h3 { font-family: var(--display); font-size: 1.3rem; font-weight: 700; color: var(--text); margin-bottom: 0.75rem; line-height: 1.2; }
.project-card p { font-size: 0.85rem; line-height: 1.7; color: var(--muted); margin-bottom: 1.5rem; }
.tech-list { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.tech-pill { font-size: 0.65rem; letter-spacing: 0.08em; color: var(--muted); border: 1px solid var(--border); padding: 0.2rem 0.55rem; border-radius: 3px; }

/* ── HERO (index only) ── */
.hero {
  min-height: 100vh;
  display: flex; flex-direction: column; justify-content: center;
  padding: 8rem 4rem 5rem;
  max-width: 860px;
}
.hero-eyebrow { font-size: 0.72rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--blue); margin-bottom: 1.75rem; }
.hero-name { font-family: var(--display); font-size: clamp(4rem, 10vw, 8rem); font-weight: 700; line-height: 0.95; color: var(--text); margin-bottom: 2.5rem; }
.hero-name span { display: block; color: var(--muted); font-weight: 400; }
.hero-sub { font-size: 1rem; line-height: 1.75; color: var(--muted); max-width: 44ch; margin-bottom: 3rem; }
.hero-cta { display: flex; gap: 1rem; flex-wrap: wrap; }

/* ── PAGE HEADER (projects page) ── */
.page-header { padding: 9rem 4rem 4rem; border-bottom: 1px solid var(--border); }
.page-eyebrow { font-size: 0.72rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--blue); margin-bottom: 1.25rem; }
.page-title { font-family: var(--display); font-size: clamp(2.5rem, 6vw, 5rem); font-weight: 700; line-height: 1; color: var(--text); }

/* ── FOOTER ── */
footer {
  padding: 2rem 4rem;
  border-top: 1px solid var(--border);
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem;
}
footer p { font-size: 0.75rem; letter-spacing: 0.06em; color: var(--muted); }
.footer-links { display: flex; gap: 1.5rem; }
.footer-links a { font-size: 0.75rem; letter-spacing: 0.06em; color: var(--muted); text-decoration: none; transition: color 0.2s; }
.footer-links a:hover { color: var(--blue); }

/* ── REVEAL ANIMATION ── */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ── MOBILE ── */
@media (max-width: 768px) {
  nav { padding: 1rem 1.5rem; }
  .hero { padding: 7rem 1.5rem 3rem; }
  .divider { margin: 0 1.5rem; }
  .section { padding: 3rem 1.5rem; }
  .page-header { padding: 7rem 1.5rem 3rem; }
  .project-row { grid-template-columns: 1fr; padding: 1.5rem; }
  footer { padding: 1.5rem; }
}