:root {
  --bg: #fafaf8;
  --surface: #ffffff;
  --text: #1d1d1f;
  --muted: #6e6e73;
  --accent: #4f7cac;
  --accent-dark: #3a5d82;
  --border: #e5e5e0;
  --radius: 14px;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  --max-width: 960px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans",
    "Yu Gothic", "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

/* ---- Header / Navigation ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(250, 250, 248, 0.85);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.nav__brand {
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
  color: var(--text);
}

.nav__links {
  display: flex;
  gap: 1.75rem;
  list-style: none;
}

.nav__links a {
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
}

.nav__links a:hover,
.nav__links a[aria-current="page"] {
  color: var(--text);
}

.nav__links a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 100%;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

/* ---- Layout ---- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

section {
  padding: 4rem 0;
}

/* ---- Hero ---- */
.hero {
  display: flex;
  align-items: center;
  gap: 3rem;
  padding: 5rem 0 4rem;
  flex-wrap: wrap;
}

.hero__avatar {
  flex: 0 0 auto;
}

.hero__avatar img {
  width: 220px;
  height: 220px;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: var(--shadow);
}

.hero__body {
  flex: 1 1 320px;
}

.hero__eyebrow {
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.8rem;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.15;
  margin: 0.5rem 0 1rem;
}

.hero p {
  color: var(--muted);
  max-width: 46ch;
}

.hero__actions {
  margin-top: 1.75rem;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 0.7rem 1.5rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
}

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

.btn--primary:hover {
  background: var(--accent-dark);
  color: #fff;
}

.btn--ghost {
  border: 1px solid var(--border);
  color: var(--text);
}

.btn--ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ---- Section headings ---- */
.section-title {
  font-size: 1.6rem;
  margin-bottom: 0.5rem;
}

.section-lead {
  color: var(--muted);
  margin-bottom: 2.5rem;
  max-width: 60ch;
}

/* ---- Cards / Grid ---- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.75rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.card__body {
  padding: 1.25rem 1.5rem 1.5rem;
}

.card__tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--accent);
  background: rgba(79, 124, 172, 0.1);
  padding: 0.2rem 0.7rem;
  border-radius: 999px;
  margin-bottom: 0.75rem;
}

.card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.4rem;
}

.card p {
  color: var(--muted);
  font-size: 0.92rem;
}

/* ---- Hobby list ---- */
.hobbies {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.hobby {
  text-align: center;
  padding: 2rem 1.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.hobby__icon {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.hobby h3 {
  font-size: 1.05rem;
  margin-bottom: 0.35rem;
}

.hobby p {
  color: var(--muted);
  font-size: 0.9rem;
}

/* ---- Contact ---- */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.contact-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  box-shadow: var(--shadow);
}

.contact-card__label {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.5rem;
}

.contact-card a,
.contact-card span {
  font-size: 1.05rem;
  font-weight: 500;
  word-break: break-all;
}

.contact-portrait {
  margin-top: 3rem;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.contact-portrait img {
  width: 100%;
  height: auto;
}

/* ---- Footer ---- */
.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 2rem;
}

.site-footer .container {
  padding-top: 2rem;
  padding-bottom: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  color: var(--muted);
  font-size: 0.88rem;
}

/* ---- Responsive ---- */
@media (max-width: 600px) {
  .nav {
    justify-content: center;
  }
  .nav__links {
    gap: 1.25rem;
  }
  .hero {
    text-align: center;
    flex-direction: column;
    padding-top: 3rem;
  }
  .hero__actions {
    justify-content: center;
  }
  section {
    padding: 3rem 0;
  }
}