:root {
  --navy: #1b2a49;
  --navy-dark: #121d34;
  --text: #223;
  --muted: #5b6475;
  --line: #dde2ea;
  --bg: #fff;
  --bg-soft: #f4f6fa;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, "Hiragino Sans", "Noto Sans JP", "Yu Gothic", sans-serif;
  line-height: 1.8;
  -webkit-text-size-adjust: 100%;
}

.inner {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 20px;
}

h1, h2, h3, p { margin: 0; }

/* ヒーロー */
.hero {
  background: var(--navy);
  color: #fff;
  padding: 56px 0 48px;
}
.hero h1 { font-size: 2.2rem; letter-spacing: .05em; }
.tagline { margin: 12px 0 0; font-size: 1.05rem; opacity: .9; }

.profile { display: flex; flex-direction: column; align-items: center; gap: 14px; text-align: center; }
.avatar {
  width: 120px;
  height: 120px;
  flex-shrink: 0;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid #fff;
}

/* ボタン（指で押しやすい高さ） */
.button {
  display: inline-block;
  min-height: 48px;
  padding: 12px 28px;
  border: 2px solid #fff;
  border-radius: 8px;
  color: #fff;
  font-weight: 700;
  text-decoration: none;
}
.button.light { background: #fff; color: var(--navy); }
.button:focus-visible, a:focus-visible { outline: 3px solid #8aa4d6; outline-offset: 2px; }

/* セクション */
section.inner { padding-top: 48px; padding-bottom: 8px; }
h2 {
  font-size: 1.7rem;
  color: var(--navy);
  margin-bottom: 20px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--navy);
}
h3 { font-size: 1.15rem; color: var(--navy); margin-bottom: 4px; }

.cards { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.cards li {
  padding: 16px 18px;
  background: var(--bg-soft);
  border-left: 4px solid var(--navy);
  border-radius: 4px;
  min-width: 0;
  overflow-wrap: anywhere;
}
.cards p { color: var(--muted); font-size: .95rem; }

.items { margin: 8px 0 0; padding-left: 1.4em; }
#works { display: flex; flex-direction: column; }
.work + .work { margin-top: 12px; }
.work { padding: 16px 18px; border: 1px solid var(--line); border-radius: 8px; }
.work p { color: var(--muted); font-size: .95rem; margin-bottom: 8px; }
.work a { color: var(--navy); font-weight: 700; }

/* 連絡先 */
.contact {
  margin-top: 56px;
  padding: 48px 0;
  background: var(--navy);
  color: #fff;
  text-align: center;
}
.contact p { margin-bottom: 16px; }
.contact .button {
  display: block;
  padding: 18px 28px;
  font-size: 1.4rem;
  box-shadow: 0 4px 0 rgba(0,0,0,.25);
}
.contact h2 { color: #fff; border-bottom-color: rgba(255,255,255,.4); text-align: left; }

footer {
  padding: 20px;
  text-align: center;
  font-size: .8rem;
  color: var(--muted);
}

@media (min-width: 720px) {
  .cards { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 640px) {
  .hero { padding: 88px 0 72px; }
  .hero h1 { font-size: 2.6rem; }
}