/* ============ Base ============ */
:root {
  --bg: #ffffff;
  --bg-alt: #f7f8fa;
  --ink: #1a1a1a;
  --ink-soft: #4a4a4a;
  --muted: #8a8a8a;
  --line: #e8e8e8;
  --accent: #2563eb;
  --accent-soft: #eff4ff;
  --card: #ffffff;
  --radius: 14px;
  --shadow: 0 1px 3px rgba(0,0,0,0.05), 0 8px 24px rgba(0,0,0,0.04);
  --maxw: 1080px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; transition: opacity .15s; }
a:hover { opacity: .8; }

.muted { color: var(--muted); font-size: .92rem; }
.accent { color: var(--accent); }

/* ============ Nav ============ */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  background: rgba(255,255,255,.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav__brand { font-weight: 800; font-size: 1.25rem; color: var(--ink); }
.nav__links { display: flex; gap: 22px; }
.nav__links a { color: var(--ink-soft); font-weight: 500; font-size: .95rem; }
.nav__toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 1.2rem;
  padding: 4px 12px;
  cursor: pointer;
  color: var(--ink);
}

/* ============ Hero ============ */
.hero {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 72px 24px 56px;
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 56px;
  align-items: center;
}
.hero__photo {
  position: relative;
  justify-self: center;
}
.hero__photo img {
  width: 280px;
  height: 280px;
  object-fit: cover;
  border-radius: 50%;
  border: 4px solid #fff;
  box-shadow: var(--shadow);
  background: var(--accent-soft);
}
.hero__badge {
  position: absolute;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #fff;
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .05em;
  padding: 4px 14px;
  border-radius: 20px;
  box-shadow: var(--shadow);
}
.hero__eyebrow {
  text-transform: uppercase;
  letter-spacing: .18em;
  font-size: .75rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 12px;
}
.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -.02em;
  margin-bottom: 14px;
}
.hero__alias { font-size: 1.1rem; color: var(--ink-soft); margin-bottom: 14px; }
.hero__alias strong { color: var(--accent); }
.hero__sub { color: var(--muted); max-width: 52ch; margin-bottom: 26px; }
.hero__cta { display: flex; gap: 12px; flex-wrap: wrap; }

/* ============ Buttons ============ */
.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 10px;
  font-weight: 600;
  font-size: .95rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform .12s, box-shadow .15s, background .15s;
}
.btn--primary { background: var(--accent); color: #fff; }
.btn--primary:hover { opacity: 1; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(37,99,235,.28); }
.btn--ghost { background: #fff; color: var(--ink); border-color: var(--line); }
.btn--ghost:hover { background: var(--bg-alt); }
.btn--sm { padding: 8px 14px; font-size: .85rem; }

/* ============ Sections ============ */
.section { max-width: var(--maxw); margin: 0 auto; padding: 64px 24px; }
.section--alt { background: var(--bg-alt); max-width: 100%; }
.section--alt > * { max-width: var(--maxw); margin-left: auto; margin-right: auto; }
.section__title { font-size: 1.9rem; font-weight: 800; letter-spacing: -.01em; margin-bottom: 10px; }
.section__lead { color: var(--muted); margin-bottom: 34px; max-width: 60ch; }

/* ============ Cards ============ */
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  transition: transform .15s, border-color .15s;
}
.card h3 { font-size: 1.1rem; margin-bottom: 12px; }
.card p { color: var(--ink-soft); font-size: .95rem; margin-bottom: 8px; }
.card p:last-child { margin-bottom: 0; }
.card--link { display: block; color: inherit; }
.card--link:hover { transform: translateY(-4px); border-color: var(--accent); opacity: 1; }
.card__icon { font-size: 1.8rem; margin-bottom: 12px; }
.card__tag {
  display: inline-block;
  margin-top: 12px;
  font-size: .8rem;
  font-weight: 600;
  color: var(--accent);
}
.badge {
  display: inline-block;
  font-size: .7rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 6px;
  margin-left: 6px;
  vertical-align: middle;
}
.badge--current { background: #e6f6ec; color: #1a7f45; }

/* ============ Timeline (Achievements) ============ */
.timeline { position: relative; padding-left: 32px; }
.timeline__item { position: relative; padding-bottom: 30px; }
.timeline__item:last-child { padding-bottom: 0; }
.timeline__item h3 { font-size: 1.15rem; margin-bottom: 6px; }
.timeline__item p { color: var(--ink-soft); max-width: 68ch; }
.timeline__dot {
  position: absolute;
  left: -32px;
  top: 5px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--accent);
}
.timeline__item:not(:last-child)::before {
  content: "";
  position: absolute;
  left: -25px;
  top: 18px;
  bottom: -4px;
  width: 2px;
  background: var(--line);
}

/* ============ Evidence grid ============ */
.evidence-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }

/* ============ Pursuits ============ */
.pursuits { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.pursuit {
  border-left: 3px solid var(--accent);
  padding: 6px 0 6px 20px;
}
.pursuit__num { font-size: .85rem; font-weight: 700; color: var(--accent); letter-spacing: .05em; }
.pursuit h3 { font-size: 1.3rem; margin: 4px 0 8px; }
.pursuit p { color: var(--ink-soft); }

/* ============ Friends ============ */
.friends { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; align-items: start; }
.friend {
  background: var(--accent-soft);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
}
.friend__avatar { font-size: 2.4rem; display: block; margin-bottom: 10px; }
.friend__note { color: var(--ink-soft); font-size: .95rem; }

/* ============ Socials ============ */
.socials { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.social {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  text-align: center;
  padding: 22px 14px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink);
  transition: transform .15s, border-color .15s, box-shadow .15s;
}
.social:hover { transform: translateY(-4px); border-color: var(--accent); box-shadow: var(--shadow); opacity: 1; }
.social__icon {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--accent-soft);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent);
}
.social__name { font-weight: 600; font-size: .95rem; }
.social__handle { font-size: .8rem; color: var(--muted); }
.social--placeholder { opacity: .65; cursor: default; }
.social--placeholder:hover { transform: none; border-color: var(--line); box-shadow: none; }

/* ============ Archive ============ */
.archive-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 6px; }

/* ============ Footer ============ */
.footer {
  border-top: 1px solid var(--line);
  background: var(--bg-alt);
  padding: 36px 24px;
  text-align: center;
}
.footer p { color: var(--ink-soft); margin-bottom: 6px; }

code {
  background: var(--accent-soft);
  padding: 2px 6px;
  border-radius: 5px;
  font-size: .85em;
  color: var(--accent);
}

/* ============ Responsive ============ */
@media (max-width: 820px) {
  .nav__links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: #fff;
    padding: 16px 24px;
    gap: 14px;
    border-bottom: 1px solid var(--line);
  }
  .nav__links.open { display: flex; }
  .nav__toggle { display: block; }
  .hero { grid-template-columns: 1fr; text-align: center; gap: 32px; }
  .hero__photo { justify-self: center; }
  .hero__cta, .hero__sub { justify-content: center; margin-left: auto; margin-right: auto; }
  .hero__sub { margin-left: auto; margin-right: auto; }
  .card-grid, .pursuits, .friends, .evidence-grid { grid-template-columns: 1fr; }
  .socials { grid-template-columns: repeat(2, 1fr); }
}