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

:root {
  --bg:        #0d0d0d;
  --bg-card:   #131313;
  --bg-hover:  #1a1a1a;
  --border:    #2a2a2a;
  --green:     #39ff6a;
  --green-dim: #1f8c3a;
  --amber:     #f5a623;
  --red:       #ff4545;
  --text:      #d4d4d4;
  --text-dim:  #666;
  --text-muted:#3d3d3d;
  --font:      'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
  --max-w:     900px;
  --gap:       2rem;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.7;
  min-height: 100vh;
}

::selection { background: var(--green); color: #000; }
a { color: var(--green); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ─── SCROLLBAR ─────────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 0; }

/* ─── NAV ───────────────────────────────────────────────────────────────────── */
#nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 2rem;
  background: rgba(13, 13, 13, 0.92);
  backdrop-filter: blur(4px);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  color: var(--green);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
}

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

.nav-links a {
  color: var(--text-dim);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  transition: color 0.15s;
}

.nav-links a:hover { color: var(--green); text-decoration: none; }

/* ─── MAIN WRAPPER ───────────────────────────────────────────────────────────── */
main {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2rem;
}

section {
  padding: 5rem 0;
  border-bottom: 1px solid var(--border);
}

section:last-of-type { border-bottom: none; }

/* ─── SECTION TITLE ─────────────────────────────────────────────────────────── */
.section-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-dim);
  letter-spacing: 0.08em;
  text-transform: lowercase;
  margin-bottom: 2.5rem;
}

.hash { color: var(--green); margin-right: 0.25rem; }

/* ─── LABELS ─────────────────────────────────────────────────────────────────── */
.label {
  font-size: 0.75rem;
  color: var(--text-dim);
  letter-spacing: 0.1em;
  margin-bottom: 0.4rem;
  margin-top: 1.6rem;
}

.label:first-child { margin-top: 0; }

/* ─── HERO ───────────────────────────────────────────────────────────────────── */
#hero { padding-top: 4rem; }

/* Terminal prompt line */
.prompt-line {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
  font-size: 0.85rem;
}

.prompt { color: var(--green); }
.cmd    { color: var(--text); }

.cursor {
  color: var(--green);
  animation: blink 1s step-end infinite;
  line-height: 1;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

/* ASCII header */
.ascii-block {
  font-size: 0.48rem;
  line-height: 1.2;
  color: var(--green-dim);
  overflow-x: auto;
  margin-bottom: 3rem;
  white-space: pre;
}

/* Hero body */
.hero-body { display: flex; flex-direction: column; gap: 0; }

h1 {
  font-size: 2rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
  margin-bottom: 0.3rem;
}

.tagline {
  font-size: 0.95rem;
  color: var(--green);
  margin-bottom: 0.5rem;
}

.bio {
  max-width: 620px;
  color: var(--text);
  font-size: 0.88rem;
  line-height: 1.8;
}

/* Stack tags */
.stack-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.4rem;
}

.tag {
  padding: 0.2rem 0.6rem;
  border: 1px solid var(--border);
  font-size: 0.75rem;
  color: var(--text-dim);
  letter-spacing: 0.06em;
  transition: border-color 0.15s, color 0.15s;
}

.tag:hover { border-color: var(--green); color: var(--green); }

/* ─── LINKS ──────────────────────────────────────────────────────────────────── */
.links-grid {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.link-card {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 1.1rem 1.25rem;
  border: 1px solid var(--border);
  border-bottom: none;
  background: var(--bg-card);
  color: var(--text);
  text-decoration: none;
  transition: background 0.12s, border-color 0.12s;
}

.link-card:first-child { border-top: 1px solid var(--border); }
.link-card:last-child  { border-bottom: 1px solid var(--border); }

.link-card:hover {
  background: var(--bg-hover);
  border-color: var(--green);
  text-decoration: none;
  color: var(--text);
}

.link-card:hover + .link-card { border-top-color: var(--green); }

.link-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--green);
  width: 1.5rem;
  flex-shrink: 0;
}

.link-icon svg {
  display: block;
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.link-label {
  font-size: 0.88rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.1rem;
}

.link-sub {
  font-size: 0.75rem;
  color: var(--text-dim);
}

.link-arrow {
  margin-left: auto;
  color: var(--text-muted);
  font-size: 1rem;
  transition: transform 0.15s, color 0.15s;
}

.link-card:hover .link-arrow {
  transform: translateX(4px);
  color: var(--green);
}

/* ─── PROJECTS ───────────────────────────────────────────────────────────────── */
.projects-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.project-card {
  border: 1px solid var(--border);
  border-bottom: none;
  padding: 1.75rem 1.5rem;
  background: var(--bg-card);
  transition: border-color 0.15s;
}

.project-card:first-child { border-top: 1px solid var(--border); }
.project-card:last-child  { border-bottom: 1px solid var(--border); }
.project-card:hover       { border-color: var(--green); }
.project-card:hover + .project-card { border-top-color: var(--green); }

/* Project header */
.project-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

.project-status {
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  padding: 0.15rem 0.5rem;
  border: 1px solid;
}

.project-status.active { color: var(--green);  border-color: var(--green-dim); }
.project-status.wip    { color: var(--amber);  border-color: #7a5010; }
.project-status.archived { color: var(--text-dim); border-color: var(--border); }

.project-title {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
}

.project-lang {
  margin-left: auto;
  font-size: 0.72rem;
  color: var(--text-dim);
  letter-spacing: 0.06em;
}

/* Meta tags */
.project-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.meta-item {
  font-size: 0.72rem;
  color: var(--text-dim);
  letter-spacing: 0.05em;
}

/* Description */
.project-desc {
  font-size: 0.85rem;
  line-height: 1.8;
  color: var(--text);
  max-width: 680px;
  margin-bottom: 1.25rem;
}

/* Architecture diagram */
.project-arch { margin-bottom: 1.25rem; }

.arch-diagram {
  margin-top: 0.5rem;
  padding: 1rem 1.25rem;
  background: #0a0a0a;
  border: 1px solid var(--border);
  border-left: 3px solid var(--green-dim);
  font-size: 0.72rem;
  line-height: 1.5;
  color: var(--text-dim);
  overflow-x: auto;
  white-space: pre;
}

/* Project links */
.project-links {
  display: flex;
  gap: 1.5rem;
  font-size: 0.8rem;
}

.project-links a { color: var(--text-dim); transition: color 0.12s; }
.project-links a:hover { color: var(--green); text-decoration: none; }

/* ─── FOOTER ─────────────────────────────────────────────────────────────────── */
#footer {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 2rem;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.dim   { color: var(--text-dim); }
.small { font-size: 0.72rem; }

/* ─── RESPONSIVE ─────────────────────────────────────────────────────────────── */
@media (max-width: 640px) {
  #nav { padding: 0.6rem 1rem; }
  main { padding: 0 1rem; }
  #footer { padding: 2rem 1rem; }

  .ascii-block { font-size: 0.32rem; }

  h1 { font-size: 1.5rem; }

  .project-lang { display: none; }
}

/* ─── UTILITY ────────────────────────────────────────────────────────────────── */
.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}