/* ============================================================
   Alex Omar — personal site
   Minimalist, single-page, neutral near-black & white.
   ============================================================ */

:root {
  --bg: #ffffff;
  --fg: #111111;
  --muted: #6b6b6b;
  --faint: #999999;
  --line: #e6e6e6;
  --card: #fafafa;
  --accent: #111111;
  --max: 820px;
  --pad: 24px;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--fg);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: border-color 0.15s ease, color 0.15s ease;
}
a:hover { border-color: var(--fg); }

/* ---------- Nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 14px var(--pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.nav-brand {
  font-family: var(--mono);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.01em;
  border: none;
}
.nav-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}
.nav-links a {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--muted);
  border: none;
  letter-spacing: 0.01em;
}
.nav-links a:hover { color: var(--fg); }

/* ---------- Layout ---------- */
main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad);
}
section {
  padding: 56px 0;
  border-top: 1px solid var(--line);
}
section:first-of-type { border-top: none; }

.section-label {
  font-family: var(--mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--faint);
  margin: 0 0 24px;
}

/* ---------- Hero ---------- */
.hero {
  padding: 64px 0 56px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 36px;
  align-items: center;
}
.hero h1 {
  font-size: 40px;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin: 0 0 8px;
  font-weight: 700;
}
.hero .role {
  font-family: var(--mono);
  font-size: 15px;
  color: var(--muted);
  margin: 0 0 20px;
}
.hero .tagline {
  font-size: 18px;
  color: var(--fg);
  max-width: 46ch;
  margin: 0 0 22px;
}
.hero .meta {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--faint);
  margin: 0 0 20px;
}
.avatar {
  width: 148px;
  height: 148px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--line);
  background: var(--card);
}
.avatar-placeholder {
  width: 148px;
  height: 148px;
  border-radius: 50%;
  border: 1px dashed var(--line);
  background: var(--card);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 40px;
  color: var(--faint);
}

/* ---------- Contact chips ---------- */
.links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.links a {
  font-family: var(--mono);
  font-size: 13px;
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--fg);
}
.links a:hover { border-color: var(--fg); background: var(--card); }

/* ---------- About ---------- */
.prose p { margin: 0 0 16px; max-width: 68ch; }
.prose p:last-child { margin-bottom: 0; }

/* ---------- Experience ---------- */
.entry {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 20px;
  padding: 22px 0;
  border-top: 1px solid var(--line);
}
.entry:first-of-type { border-top: none; padding-top: 0; }
.entry .when {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--faint);
  padding-top: 2px;
}
.entry h3 {
  font-size: 18px;
  margin: 0 0 2px;
  font-weight: 600;
}
.entry .org {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--muted);
  margin: 0 0 10px;
}
.entry ul {
  margin: 0;
  padding-left: 18px;
  color: var(--fg);
}
.entry li { margin: 0 0 6px; }

/* ---------- Projects ---------- */
.projects {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.project {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 18px;
  background: var(--card);
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.project:hover { border-color: var(--fg); }
.project h3 {
  font-size: 16px;
  margin: 0 0 4px;
  font-weight: 600;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}
.project .year {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--faint);
  font-weight: 400;
}
.project p { margin: 0 0 10px; font-size: 14px; color: var(--muted); }
.project .stack {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--faint);
}
/* clickable cards */
a.project { display: block; color: var(--fg); }
a.project:hover { transform: translateY(-2px); }
a.project h3 { color: var(--fg); }

/* per-project detail entries */
.project-details { margin-top: 40px; }
.project-detail {
  padding: 26px 0;
  border-top: 1px solid var(--line);
}
.project-detail h3 {
  font-size: 20px;
  margin: 0 0 4px;
  font-weight: 600;
  display: flex;
  align-items: baseline;
  gap: 12px;
}
.project-detail .year {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--faint);
  font-weight: 400;
}
.project-detail .stack {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--faint);
  margin: 0 0 12px;
}
.project-detail .project-img {
  display: block;
  max-width: 100%;
  max-height: 420px;
  width: auto;
  height: auto;
  border-radius: 10px;
  border: 1px solid var(--line);
  margin: 4px 0 16px;
}
.project-detail p { max-width: 68ch; margin: 0 0 12px; }
.project-detail .back { margin: 0; }
.project-detail .back a {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--muted);
  border: none;
}
.project-detail .back a:hover { color: var(--fg); }

/* keep anchored targets clear of the sticky nav */
:target { scroll-margin-top: 76px; }
section[id], article[id] { scroll-margin-top: 76px; }

/* ---------- Skills ---------- */
.skills {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px 32px;
}
.skill-group h3 {
  font-family: var(--mono);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin: 0 0 8px;
}
.skill-group p { margin: 0; font-size: 15px; }

/* ---------- Footer ---------- */
footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 40px var(--pad) 64px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 12px;
  color: var(--faint);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
footer a { border: none; color: var(--muted); }

/* ---------- Responsive ---------- */
@media (max-width: 680px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 24px;
    padding-top: 48px;
  }
  .hero h1 { font-size: 32px; }
  .entry { grid-template-columns: 1fr; gap: 6px; }
  .entry .when { padding-top: 0; }
  .projects, .skills { grid-template-columns: 1fr; }
  .nav-brand { font-size: 14px; }
  .nav-links { gap: 14px; }
}