:root {
  --bg: #f5f7fb;
  --card: #ffffff;
  --ink: #0f172a;
  --muted: #64748b;
  --line: #e5e7eb;
  --accent: #2563eb;
  --accent-soft: #dbeafe;
  --shadow: 0 12px 40px rgba(15, 23, 42, 0.08);
  --radius: 20px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Nunito", system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}

a { text-decoration: none; }
img { max-width: 100%; }

.site-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(245, 247, 251, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
}

.site-nav.is-sticky {
  border-bottom-color: var(--line);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.04);
}

.brand {
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--ink);
}

.navbar-nav .nav-link {
  color: var(--muted);
  font-weight: 700;
  padding: 0.5rem 0.8rem;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: var(--accent);
}

.navbar-toggler {
  border: 1px solid var(--line);
}

.text-primary { color: var(--accent) !important; }

.nav-social a {
  color: var(--ink);
  font-size: 1.2rem;
  margin-left: 0.4rem;
}

.hero {
  padding: 72px 0 40px;
}

.kicker {
  display: inline-block;
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 999px;
  padding: 0.3rem 0.8rem;
  font-size: 0.82rem;
  font-weight: 800;
  margin-bottom: 1rem;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1rem;
}

.hero p.lead {
  color: var(--muted);
  font-size: 1.1rem;
  max-width: 34rem;
}

.hero-photo {
  width: 280px;
  height: 280px;
  object-fit: cover;
  object-position: top;
  border-radius: 50%;
  background: #fff;
  box-shadow: var(--shadow);
  border: 8px solid #fff;
}

.btn-main,
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  border-radius: 999px;
  padding: 0.7rem 1.15rem;
  font-weight: 800;
}

.btn-main {
  background: var(--accent);
  color: #fff;
}

.btn-ghost {
  background: #fff;
  color: var(--ink);
  border: 1px solid var(--line);
}

.section {
  padding: 72px 0;
}

.section-title {
  font-weight: 800;
  margin-bottom: 0.4rem;
}

.section-copy {
  color: var(--muted);
  margin-bottom: 2rem;
}

.card-soft {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  height: 100%;
}

.skill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0;
  margin: 0;
  list-style: none;
}

.skill-list li {
  background: #eef2ff;
  color: #1e3a8a;
  border-radius: 999px;
  padding: 0.3rem 0.75rem;
  font-size: 0.88rem;
  font-weight: 700;
}

.job {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}

.job img {
  width: 64px;
  height: 64px;
  object-fit: contain;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 8px;
}

.job h3 {
  font-size: 1.1rem;
  font-weight: 800;
  margin-bottom: 0.15rem;
}

.job .meta {
  color: var(--muted);
  font-size: 0.92rem;
}

.job ul {
  margin: 0.7rem 0 0;
  padding-left: 1.1rem;
  color: #334155;
}

.video-card video {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: #0f172a;
  border-radius: 16px 16px 0 0;
  display: block;
}

.video-card .card-soft {
  padding: 0;
  overflow: hidden;
}

.video-card .card-body-pad {
  padding: 1.1rem 1.2rem 1.3rem;
}

.project-thumb {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 16px 16px 0 0;
  display: block;
}

.chip {
  display: inline-block;
  background: var(--accent-soft);
  color: #1d4ed8;
  border-radius: 999px;
  padding: 0.18rem 0.55rem;
  font-size: 0.75rem;
  font-weight: 800;
  margin: 0.15rem 0.15rem 0 0;
}

.tech-row img {
  width: 42px;
  height: 42px;
  object-fit: contain;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 6px;
}

.npm-card {
  background: linear-gradient(180deg, #fff 0%, #f8fafc 100%);
}

.npm-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.6rem;
  margin: 1rem 0;
}

.npm-stat {
  background: #f8fafc;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 0.75rem 0.5rem;
  text-align: center;
}

.npm-stat strong {
  display: block;
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--ink);
}

.npm-stat span {
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 700;
}

.npm-badges img {
  height: 20px;
  margin: 0.15rem 0.15rem 0 0;
}

.text-project {
  min-height: 220px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.site-footer {
  padding: 48px 0;
  text-align: center;
}

.site-footer .social a {
  display: inline-flex;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: #fff;
  color: var(--ink);
  border: 1px solid var(--line);
  margin: 0 0.25rem;
  font-size: 1.2rem;
}

@media (max-width: 767px) {
  .hero { padding-top: 40px; text-align: center; }
  .hero p.lead { margin-left: auto; margin-right: auto; }
  .hero-photo { width: 220px; height: 220px; }
  .job { grid-template-columns: 64px 1fr; }
}