:root {
  --bg: #f7f8fb;
  --panel: #ffffff;
  --ink: #172033;
  --muted: #5f6b7a;
  --line: #dde3ec;
  --accent: #2454ff;
  --accent-dark: #1736a7;
  --chip: #eaf0ff;
  --shadow: 0 24px 60px rgba(23, 32, 51, 0.10);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: radial-gradient(circle at top left, #eaf0ff 0, transparent 32rem), var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

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

a:hover {
  color: var(--accent-dark);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(247, 248, 251, 0.88);
  border-bottom: 1px solid rgba(221, 227, 236, 0.8);
  backdrop-filter: blur(14px);
}

.nav {
  align-items: center;
  display: flex;
  justify-content: space-between;
  margin: 0 auto;
  max-width: 1120px;
  padding: 1rem 1.25rem;
}

.brand {
  color: var(--ink);
  font-weight: 800;
  letter-spacing: -0.03em;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.nav-links a {
  color: var(--muted);
  font-size: 0.95rem;
}

.section {
  margin: 0 auto;
  max-width: 1120px;
  padding: 5rem 1.25rem;
}

.hero {
  align-items: center;
  display: grid;
  gap: 3rem;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
  min-height: calc(100vh - 70px);
}

.eyebrow {
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  margin: 0 0 0.75rem;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  line-height: 1.12;
  margin: 0;
}

h1 {
  font-size: clamp(2.6rem, 7vw, 5.5rem);
  letter-spacing: -0.07em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.05em;
}

h3 {
  font-size: 1.35rem;
  letter-spacing: -0.03em;
}

.hero-text,
.section-heading p {
  color: var(--muted);
  font-size: 1.08rem;
  max-width: 720px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin: 2rem 0;
}

.button {
  border-radius: 999px;
  display: inline-flex;
  font-weight: 800;
  padding: 0.85rem 1.2rem;
}

.button.primary {
  background: var(--accent);
  color: #ffffff;
}

.button.secondary {
  background: var(--panel);
  border: 1px solid var(--line);
  color: var(--ink);
}

.quick-facts {
  color: var(--muted);
  margin: 0;
  padding-left: 1.2rem;
}

.profile-card,
.card,
.writing-item,
.content-card {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
}

.profile-card {
  overflow: hidden;
}

.profile-card img,
.photo-fallback {
  aspect-ratio: 4 / 5;
  display: block;
  object-fit: cover;
  width: 100%;
}

.photo-fallback {
  align-items: center;
  background: linear-gradient(135deg, #2454ff, #06184d);
  color: #ffffff;
  display: none;
  font-size: 4rem;
  font-weight: 900;
  justify-content: center;
  letter-spacing: -0.08em;
}

.profile-meta {
  padding: 1.4rem;
}

.profile-meta span,
.profile-meta p {
  color: var(--muted);
}

.section-heading {
  margin-bottom: 2rem;
}

.card-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card {
  padding: 1.5rem;
}

.card p {
  color: var(--muted);
}

.card a {
  font-weight: 800;
}

.tag {
  background: var(--chip);
  border-radius: 999px;
  color: var(--accent) !important;
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 800;
  margin: 0 0 1rem;
  padding: 0.35rem 0.7rem;
  text-transform: uppercase;
}

.muted {
  opacity: 0.78;
}

.writing-section {
  padding-top: 2rem;
}

.writing-list {
  display: grid;
  gap: 1rem;
}

.writing-item {
  color: var(--ink);
  display: grid;
  gap: 0.25rem;
  padding: 1.25rem 1.5rem;
}

.writing-item span {
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.writing-item small {
  color: var(--muted);
  font-size: 0.95rem;
}

.footer {
  color: var(--muted);
  padding: 2rem 1.25rem 3rem;
  text-align: center;
}

.article {
  max-width: 880px;
}

.content-card {
  padding: clamp(1.5rem, 4vw, 3rem);
}

.content-card h1 {
  font-size: clamp(2.2rem, 5vw, 4rem);
}

.content-card h2 {
  font-size: 1.7rem;
  margin-top: 2rem;
}

.content-card li + li {
  margin-top: 0.4rem;
}

.back-link {
  display: inline-block;
  font-weight: 800;
  margin-bottom: 1.25rem;
}

@media (max-width: 820px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.75rem;
  }

  .hero,
  .card-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 3.5rem 1rem;
  }
}