/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-bg: #fafaf9;
  --color-surface: #ffffff;
  --color-text: #1a1a1a;
  --color-muted: #6b7280;
  --color-accent: #2563eb;
  --color-accent-light: #eff6ff;
  --color-border: #e5e7eb;
  --font-sans: 'Inter', 'Hiragino Sans', 'Noto Sans JP', sans-serif;
  --max-width: 860px;
  --radius: 12px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  font-size: 16px;
}

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

a:hover {
  text-decoration: underline;
}

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

/* Navigation */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.nav__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.nav__logo:hover {
  text-decoration: none;
  color: var(--color-accent);
}

.nav__links {
  display: flex;
  gap: 32px;
  list-style: none;
}

.nav__links a {
  color: var(--color-muted);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav__links a:hover,
.nav__links a.active {
  color: var(--color-text);
  text-decoration: none;
}

/* Layout */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Hero */
.hero {
  padding: 80px 24px 60px;
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 220px;
  gap: 48px;
  align-items: center;
}

.hero__text {}

.hero__eyebrow {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.hero__name {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.1;
  margin-bottom: 20px;
}

.hero__desc {
  font-size: 1.05rem;
  color: var(--color-muted);
  max-width: 480px;
  margin-bottom: 32px;
}

.hero__actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 22px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
}

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

.btn--primary:hover {
  background: #1d4ed8;
  text-decoration: none;
  color: #fff;
}

.btn--outline {
  background: transparent;
  color: var(--color-text);
  border: 1.5px solid var(--color-border);
}

.btn--outline:hover {
  background: var(--color-border);
  text-decoration: none;
  color: var(--color-text);
}

.hero__photo {
  border-radius: 50%;
  width: 200px;
  height: 200px;
  object-fit: cover;
  justify-self: center;
  box-shadow: 0 8px 32px rgba(0,0,0,0.10);
}

/* Section */
.section {
  padding: 60px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.section + .section {
  border-top: 1px solid var(--color-border);
}

.section__label {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.section__title {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.section__body {
  color: var(--color-muted);
  max-width: 620px;
}

/* Skills / Tags */
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.tag {
  background: var(--color-accent-light);
  color: var(--color-accent);
  padding: 4px 14px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
}

/* Card Grid */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
  margin-top: 32px;
}

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

.card:hover {
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
  transform: translateY(-2px);
}

.card__img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
  background: #f0f0f0;
}

.card__body {
  padding: 16px 18px 20px;
}

.card__category {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 6px;
}

.card__title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.card__desc {
  font-size: 0.875rem;
  color: var(--color-muted);
  line-height: 1.6;
}

/* Hobby / Feature Row */
.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
  margin-top: 32px;
}

.feature-row.reverse {
  direction: rtl;
}

.feature-row.reverse > * {
  direction: ltr;
}

.feature-row__img {
  border-radius: var(--radius);
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}

.feature-row__text h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.feature-row__text p {
  color: var(--color-muted);
  font-size: 0.95rem;
}

/* Contact */
.contact-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 40px;
  max-width: 560px;
  margin-top: 32px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--color-border);
}

.contact-item:last-child {
  border-bottom: none;
}

.contact-item__icon {
  width: 40px;
  height: 40px;
  background: var(--color-accent-light);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.contact-item__label {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 2px;
}

.contact-item__value {
  font-weight: 600;
  color: var(--color-text);
}

/* Page Header */
.page-header {
  padding: 64px 24px 48px;
  max-width: var(--max-width);
  margin: 0 auto;
  border-bottom: 1px solid var(--color-border);
}

.page-header__label {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.page-header__title {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  margin-bottom: 14px;
}

.page-header__desc {
  color: var(--color-muted);
  max-width: 520px;
}

/* Footer */
.footer {
  border-top: 1px solid var(--color-border);
  padding: 32px 24px;
  text-align: center;
  color: var(--color-muted);
  font-size: 0.85rem;
  margin-top: 40px;
}

/* Responsive */
@media (max-width: 640px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
    padding: 48px 20px 40px;
  }

  .hero__photo {
    width: 140px;
    height: 140px;
    grid-row: 1;
  }

  .hero__desc {
    margin: 0 auto 28px;
  }

  .hero__actions {
    justify-content: center;
  }

  .feature-row,
  .feature-row.reverse {
    grid-template-columns: 1fr;
    direction: ltr;
  }

  .contact-card {
    padding: 24px;
  }

  .nav__links {
    gap: 20px;
  }
}