/* ─────────────────────────────────────────────────────────────────
   Personal website stylesheet
   No framework, no preprocessor. Edit directly.
   ───────────────────────────────────────────────────────────────── */

/* ─── Reset ─────────────────────────────────────────────────────── */

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

/* ─── Design tokens ──────────────────────────────────────────────
   Change these to retheme the entire site.                        */

:root {
  --color-bg:       #ffffff;
  --color-text:     #111111;
  --color-muted:    #555555;
  --color-accent:   #0070f3;
  --color-border:   #e5e5e5;
  --color-tag-bg:   #f4f4f4;

  --max-width:      740px;
  --section-gap:    4rem;

  /* System font stack — no web font requests, zero latency */
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
          Oxygen, Ubuntu, sans-serif;
}

/* ─── Base ────────────────────────────────────────────────────── */

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background-color: var(--color-bg);
  color: var(--color-text);
  font-size: 1rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--color-accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* ─── Navigation ─────────────────────────────────────────────── */

nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-name {
  font-weight: 600;
  color: var(--color-text);
  font-size: 0.95rem;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 1.5rem;
}

nav ul a {
  color: var(--color-muted);
  font-size: 0.875rem;
}

nav ul a:hover {
  color: var(--color-text);
  text-decoration: none;
}

/* ─── Content column ─────────────────────────────────────────── */

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

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

section:last-child {
  border-bottom: none;
}

/* Section label — small caps above each section */
h2 {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-muted);
  margin-bottom: 2rem;
}

/* ─── Hero ────────────────────────────────────────────────────── */

#hero {
  padding-top: 5rem;
}

#hero h1 {
  font-size: 2.25rem;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.tagline {
  font-size: 1.05rem;
  color: var(--color-muted);
  margin-bottom: 0.3rem;
  max-width: 560px;
}

.location {
  font-size: 0.875rem;
  color: var(--color-muted);
  margin-bottom: 1.75rem;
}

.social-links {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.social-links a {
  font-size: 0.875rem;
  color: var(--color-muted);
}

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

/* ─── About ───────────────────────────────────────────────────── */

#about p {
  max-width: 600px;
  color: var(--color-muted);
}

/* ─── Experience ─────────────────────────────────────────────── */

.role {
  margin-bottom: 2.25rem;
}

.role:last-child {
  margin-bottom: 0;
}

.role-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 0.1rem;
}

.role-title {
  font-weight: 600;
  font-size: 0.95rem;
}

.role-date {
  font-size: 0.8rem;
  color: var(--color-muted);
  white-space: nowrap;
  flex-shrink: 0;
}

.role-company {
  display: block;
  font-size: 0.875rem;
  color: var(--color-muted);
  margin-bottom: 0.35rem;
}

.role-company:hover {
  color: var(--color-accent);
  text-decoration: none;
}

.role-desc {
  font-size: 0.875rem;
  color: var(--color-muted);
}

/* ─── Projects ───────────────────────────────────────────────── */

.project {
  margin-bottom: 2.25rem;
}

.project:last-child {
  margin-bottom: 0;
}

.project-title {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-text);
}

.project-title:hover {
  color: var(--color-accent);
  text-decoration: none;
}

.project-desc {
  font-size: 0.875rem;
  color: var(--color-muted);
  margin: 0.3rem 0 0.65rem;
  max-width: 560px;
}

.project-tags {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.tag {
  font-size: 0.72rem;
  color: var(--color-muted);
  background-color: var(--color-tag-bg);
  border-radius: 4px;
  padding: 0.15rem 0.5rem;
  letter-spacing: 0.02em;
}

/* ─── Contact ────────────────────────────────────────────────── */

#contact p {
  font-size: 0.95rem;
  color: var(--color-muted);
}

/* ─── Footer ─────────────────────────────────────────────────── */

footer {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem 1.5rem;
  font-size: 0.78rem;
  color: var(--color-muted);
}

/* ─── Responsive ─────────────────────────────────────────────── */

@media (max-width: 600px) {
  #hero { padding-top: 3rem; }
  #hero h1 { font-size: 1.75rem; }

  nav ul { gap: 1rem; }
  nav ul a { font-size: 0.8rem; }

  /* Stack date below title on narrow screens */
  .role-header {
    flex-direction: column;
    gap: 0.1rem;
  }
}