/* ===== リセット・基本設定 ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-bg: #fdf7f2;
  --color-surface: #ffffff;
  --color-primary: #c85f1a;
  --color-primary-light: #e07832;
  --color-accent: #f0a84a;
  --color-text: #2e2e2e;
  --color-text-sub: #666666;
  --color-border: #edddd0;
  --font-heading: 'Cormorant Garamond', 'Noto Serif JP', serif;
  --font-body: 'Noto Sans JP', sans-serif;
  --max-width: 760px;
  --radius: 8px;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.8;
}

/* ===== ヘッダー ===== */
header {
  background-color: var(--color-primary);
  color: #ffffff;
  text-align: center;
  padding: 80px 24px 72px;
}

.header-name {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 6vw, 3.2rem);
  font-weight: 600;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}

.header-name span {
  display: block;
  font-size: clamp(0.85rem, 2.5vw, 1rem);
  font-family: var(--font-body);
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 12px;
}

.header-catch {
  font-size: clamp(0.95rem, 2.8vw, 1.1rem);
  color: rgba(255, 255, 255, 0.85);
  font-weight: 300;
  letter-spacing: 0.03em;
}

.header-divider {
  width: 48px;
  height: 2px;
  background-color: var(--color-accent);
  margin: 24px auto 20px;
}

/* ===== ナビゲーション ===== */
nav {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

nav ul {
  display: flex;
  justify-content: center;
  gap: 0;
  list-style: none;
  max-width: var(--max-width);
  margin: 0 auto;
}

nav a {
  display: block;
  padding: 16px 20px;
  color: var(--color-text-sub);
  text-decoration: none;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  transition: color 0.2s;
}

nav a:hover {
  color: var(--color-primary);
}

/* ===== メインコンテンツ共通 ===== */
main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px 80px;
}

section {
  padding: 64px 0 0;
}

.section-label {
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-accent);
  font-weight: 500;
  margin-bottom: 8px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 4vw, 2rem);
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 32px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}

/* ===== 自己紹介セクション ===== */
.about-card {
  background-color: var(--color-surface);
  border-radius: var(--radius);
  padding: 40px;
  border: 1px solid var(--color-border);
}

.about-card p {
  color: var(--color-text);
  margin-bottom: 16px;
}

.about-card p:last-child {
  margin-bottom: 0;
}

/* ===== スキル・実績セクション ===== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 40px;
}

.skill-item {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px 20px;
  text-align: center;
  transition: border-color 0.2s, transform 0.2s;
}

.skill-item:hover {
  border-color: var(--color-primary-light);
  transform: translateY(-2px);
}

.skill-icon {
  font-size: 1.8rem;
  margin-bottom: 10px;
}

.skill-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.skill-desc {
  font-size: 0.8rem;
  color: var(--color-text-sub);
  line-height: 1.5;
}

.achievements-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 16px;
  margin-top: 40px;
}

.achievements-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.achievements-list li {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 14px 20px;
  font-size: 0.9rem;
  color: var(--color-text);
}

/* ===== お問い合わせセクション ===== */
.contact-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 48px 40px;
  text-align: center;
}

.contact-card p {
  color: var(--color-text-sub);
  margin-bottom: 28px;
}

.contact-btn {
  display: inline-block;
  background-color: var(--color-primary);
  color: #ffffff;
  text-decoration: none;
  padding: 14px 40px;
  border-radius: 40px;
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  transition: background-color 0.2s, transform 0.2s;
}

.contact-btn:hover {
  background-color: var(--color-primary-light);
  transform: translateY(-1px);
}

.contact-note {
  display: block;
  margin-top: 16px;
  font-size: 0.8rem;
  color: var(--color-text-sub);
}

/* ===== フッター ===== */
footer {
  background-color: var(--color-primary);
  color: rgba(255, 255, 255, 0.65);
  text-align: center;
  padding: 32px 24px;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
}

/* ===== レスポンシブ（スマホ） ===== */
@media (max-width: 600px) {
  header {
    padding: 60px 20px 52px;
  }

  nav ul {
    gap: 0;
    flex-wrap: wrap;
  }

  nav a {
    padding: 12px 14px;
    font-size: 0.8rem;
  }

  main {
    padding: 0 16px 60px;
  }

  section {
    padding: 48px 0 0;
  }

  .about-card,
  .contact-card {
    padding: 28px 20px;
  }

  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}