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

:root {
  --color-bg: #f9f8f6;
  --color-surface: #ffffff;
  --color-primary: #2c6e49;
  --color-primary-light: #4c956c;
  --color-accent: #d4a847;
  --color-text: #1a1a1a;
  --color-muted: #6b7280;
  --color-border: #e5e7eb;
  --font-sans: 'Helvetica Neue', Arial, 'Hiragino Sans', 'Yu Gothic', sans-serif;
  --radius: 12px;
  --shadow: 0 2px 12px rgba(0,0,0,0.08);
  --max-width: 900px;
}

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-primary-light); }

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

/* ===== Navigation ===== */
header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.04em;
}

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

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-muted);
  letter-spacing: 0.03em;
  transition: color 0.2s;
  padding-bottom: 2px;
  border-bottom: 2px solid transparent;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* ===== Main Content ===== */
main {
  flex: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 60px 24px 80px;
  width: 100%;
}

/* ===== Hero Section ===== */
.hero {
  display: flex;
  align-items: center;
  gap: 48px;
  margin-bottom: 72px;
}

.hero-photo img {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--color-border);
}

.hero-text h1 {
  font-size: 2.4rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 8px;
  color: var(--color-text);
}

.hero-text .subtitle {
  font-size: 1rem;
  color: var(--color-primary);
  font-weight: 600;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}

.hero-text p {
  color: var(--color-muted);
  font-size: 0.95rem;
  max-width: 480px;
}

/* ===== Section ===== */
.section { margin-bottom: 64px; }

.section-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 24px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-primary);
  display: inline-block;
}

/* ===== Cards ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

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

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}

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

.card-body {
  padding: 20px;
}

.card-body h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.card-body p {
  font-size: 0.85rem;
  color: var(--color-muted);
  line-height: 1.6;
}

.tag {
  display: inline-block;
  background: #e8f5ee;
  color: var(--color-primary);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: 20px;
  margin-bottom: 8px;
  letter-spacing: 0.04em;
}

/* ===== Hobby List ===== */
.hobby-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}

.hobby-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 14px;
  box-shadow: var(--shadow);
}

.hobby-icon {
  font-size: 1.8rem;
  flex-shrink: 0;
}

.hobby-item p {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
}

/* ===== About Stats ===== */
.stats-row {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.stat-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px 28px;
  text-align: center;
  min-width: 120px;
  box-shadow: var(--shadow);
}

.stat-item .num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-primary);
  display: block;
}

.stat-item .label {
  font-size: 0.8rem;
  color: var(--color-muted);
  margin-top: 4px;
}

/* ===== Skills ===== */
.skills-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.skill-tag {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 8px 18px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text);
  box-shadow: var(--shadow);
}

/* ===== Contact ===== */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.contact-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.contact-card .icon {
  font-size: 1.6rem;
}

.contact-card h3 {
  font-size: 0.85rem;
  color: var(--color-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.contact-card a, .contact-card p {
  font-size: 0.95rem;
  color: var(--color-text);
  font-weight: 500;
}

.contact-card a:hover { color: var(--color-primary-light); }

.contact-note {
  background: #fffbea;
  border: 1px solid #f0d070;
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-top: 32px;
  font-size: 0.9rem;
  color: #7a6020;
}

/* ===== Page Header ===== */
.page-header {
  margin-bottom: 48px;
}

.page-header h1 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 8px;
}

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

/* ===== Footer ===== */
footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  text-align: center;
  padding: 28px;
  font-size: 0.82rem;
  color: var(--color-muted);
}

/* ===== Responsive ===== */
@media (max-width: 600px) {
  .hero { flex-direction: column; gap: 24px; text-align: center; }
  .hero-text h1 { font-size: 1.8rem; }
  .hero-text p { margin: 0 auto; }
  .stats-row { justify-content: center; }
  .nav-links { gap: 16px; }
}