/* ── Reset & base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:       #0d0f14;
  --bg2:      #141720;
  --bg3:      #1a1e2a;
  --border:   #252a38;
  --green:    #4ade80;
  --cyan:     #22d3ee;
  --text:     #c8d3e0;
  --muted:    #5a6478;
  --accent:   var(--cyan);
  --font:     'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
  --max:      860px;
  --nav-h:    56px;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.75;
  min-height: 100vh;
}

/* ── Scanline overlay ── */
.scanlines {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 100;
  background: repeating-linear-gradient(
    to bottom,
    transparent,
    transparent 2px,
    rgba(0,0,0,.08) 2px,
    rgba(0,0,0,.08) 4px
  );
}

/* ── Selection ── */
::selection { background: var(--accent); color: var(--bg); }

/* ── Links ── */
a { color: var(--accent); text-decoration: none; transition: opacity .15s; }
a:hover { opacity: .75; }

/* ── Nav ── */
nav {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(1.25rem, 5vw, 3rem);
  background: rgba(13,15,20,.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: .05em;
}

nav ul {
  display: flex;
  gap: 2rem;
  list-style: none;
}

nav ul a {
  color: var(--muted);
  font-size: .8rem;
  letter-spacing: .08em;
  transition: color .15s;
}
nav ul a:hover { color: var(--accent); opacity: 1; }

/* ── Cursor blink ── */
.cursor, .blink {
  display: inline-block;
  color: var(--accent);
  animation: blink 1.1s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* ── Main layout ── */
main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 5vw, 3rem);
}

section {
  padding: 5rem 0;
  border-bottom: 1px solid var(--border);
}
section:last-child { border-bottom: none; }

/* ── Hero ── */
#hero { padding-top: 6rem; }

.prompt {
  font-size: .75rem;
  color: var(--green);
  margin-bottom: .5rem;
  letter-spacing: .1em;
}
.prompt::before { content: '> '; opacity: .5; }

#hero h1 {
  font-size: clamp(2rem, 6vw, 3.5rem);
  font-weight: 700;
  color: #fff;
  letter-spacing: -.02em;
  line-height: 1.15;
  margin-bottom: 1rem;
}

.tagline {
  font-size: .95rem;
  color: var(--muted);
  margin-bottom: 2rem;
  letter-spacing: .03em;
}

.hero-links { display: flex; gap: .75rem; flex-wrap: wrap; }

.btn {
  display: inline-block;
  padding: .45rem 1.1rem;
  background: var(--accent);
  color: var(--bg);
  font-family: var(--font);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .06em;
  border-radius: 2px;
  transition: opacity .15s, transform .1s;
}
.btn:hover { opacity: .85; transform: translateY(-1px); }

.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}

/* ── Section headings ── */
h2 {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: .05em;
  margin-bottom: 2.5rem;
}

.section-prefix {
  color: var(--muted);
  margin-right: .4em;
  font-weight: 400;
}

/* ── About ── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.about-text p + p { margin-top: 1rem; }
.about-text p { color: var(--text); font-size: .9rem; }

.skills-label {
  font-size: .7rem;
  letter-spacing: .1em;
  color: var(--muted);
  margin-bottom: .75rem;
  text-transform: uppercase;
}

/* ── Tag list ── */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  list-style: none;
}

.tag-list li {
  padding: .2rem .65rem;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 2px;
  font-size: .75rem;
  color: var(--cyan);
  letter-spacing: .04em;
}

.tag-list.small li { font-size: .7rem; }

/* ── Projects ── */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
}

.project-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1.5rem;
  transition: border-color .2s, transform .15s;
}
.project-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: .75rem;
}

.project-name {
  font-size: .9rem;
  font-weight: 700;
  color: #fff;
}
.project-name::before { content: './'; color: var(--muted); font-weight: 400; }

.project-links {
  display: flex;
  gap: .75rem;
  font-size: .75rem;
  color: var(--muted);
}
.project-links a { color: var(--muted); }
.project-links a:hover { color: var(--accent); opacity: 1; }

.project-desc {
  font-size: .82rem;
  color: var(--muted);
  margin-bottom: 1rem;
  line-height: 1.6;
}

/* ── Contact ── */
#contact p {
  font-size: .9rem;
  color: var(--text);
  margin-bottom: 1.5rem;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: .6rem;
}

.contact-links a {
  font-size: .85rem;
  color: var(--text);
  transition: color .15s;
}
.contact-links a::before { content: '→ '; color: var(--accent); }
.contact-links a:hover { color: var(--accent); opacity: 1; }

/* ── Footer ── */
footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 2rem clamp(1.25rem, 5vw, 3rem);
  font-size: .7rem;
  color: var(--muted);
  letter-spacing: .06em;
}

/* ── Responsive ── */
@media (max-width: 600px) {
  .about-grid { grid-template-columns: 1fr; gap: 2rem; }
  nav ul { gap: 1.25rem; }
}