:root {
  --bg: #f6f8fb;
  --surface: #ffffff;
  --text: #172034;
  --muted: #5a6478;
  --line: #d9e0ea;
  --accent: #0d4fd6;
  --accent-soft: #e7f0ff;
  --shadow: 0 14px 36px rgba(19, 34, 68, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Public Sans", "Segoe UI", sans-serif;
  color: var(--text);
  background: radial-gradient(circle at 20% -10%, #ffffff 0%, #f1f5fb 35%, var(--bg) 100%);
  line-height: 1.6;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.25;
}

h1,
h2 {
  font-family: "Fraunces", Georgia, serif;
}

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

a:hover {
  text-decoration: underline;
}

.container {
  width: min(1100px, calc(100% - 2rem));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(10px);
  background: rgba(246, 248, 251, 0.9);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  min-height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.identity {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.avatar {
  width: 44px;
  height: 44px;
  border-radius: 999px;
  background: linear-gradient(135deg, #0e4fd8 0%, #4a7ff0 100%);
  color: #fff;
  font-size: 0.9rem;
  font-weight: 700;
  display: grid;
  place-items: center;
}

.identity h1 {
  font-size: 1.25rem;
}

.headline {
  margin: 0.2rem 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.top-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.85rem;
}

.top-nav a {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 500;
}

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

main {
  padding: 1.5rem 0 3rem;
  display: grid;
  gap: 1rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.25rem;
  box-shadow: var(--shadow);
}

.card h2 {
  font-size: 1.45rem;
  margin-bottom: 0.9rem;
}

.hero {
  padding: 1.4rem;
  background: linear-gradient(145deg, #ffffff 0%, #f7faff 100%);
}

.kicker {
  margin: 0;
  color: var(--accent);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
}

.hero h2 {
  margin-top: 0.45rem;
  margin-bottom: 0.85rem;
  font-size: clamp(1.5rem, 2.2vw, 1.95rem);
}

.hero p {
  margin: 0;
  color: #2a3651;
}

.hero-links {
  margin-top: 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.55rem 0.9rem;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
}

.btn:hover {
  text-decoration: none;
  border-color: #b8c6df;
}

.btn-primary {
  border-color: #0a45bd;
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  border-color: #083996;
  background: #0a43b8;
}

.entry-list {
  display: grid;
  gap: 0.8rem;
}

.entry {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.9rem;
  background: #fbfcff;
}

.entry-top {
  display: flex;
  gap: 0.8rem;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 0.4rem;
}

.entry-top h3 {
  font-size: 1.02rem;
}

.entry-top p {
  margin: 0;
  font-size: 0.84rem;
  color: var(--muted);
  white-space: nowrap;
}

.entry p {
  margin: 0;
  color: #28344d;
}

.entry ul {
  margin: 0;
  padding-left: 1.1rem;
}

.entry li + li {
  margin-top: 0.3rem;
}

.project-grid {
  display: grid;
  gap: 0.8rem;
}

.project-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fbfcff;
  padding: 0.95rem;
}

.project-card h3 {
  font-size: 1.02rem;
  margin-bottom: 0.35rem;
}

.project-card p {
  margin: 0;
  color: #2d3952;
}

.skill-grid {
  display: grid;
  gap: 0.8rem;
}

.skill-grid article {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.9rem;
  background: #fbfcff;
}

.skill-grid h3 {
  margin-bottom: 0.3rem;
  font-size: 1rem;
}

.skill-grid p {
  margin: 0;
  color: #2d3952;
}

#contact p {
  margin: 0.35rem 0;
}

@media (min-width: 760px) {
  .hero,
  .card {
    padding: 1.5rem;
  }

  .project-grid,
  .skill-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 759px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
    padding: 0.75rem 0;
  }

  .top-nav {
    width: 100%;
    justify-content: flex-start;
    gap: 0.7rem;
  }

  .entry-top {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.2rem;
  }

  .entry-top p {
    white-space: normal;
  }
}