:root {
  --main: #1e73be;
  --main-soft: rgba(30, 115, 190, 0.08);
  --accent: #f59e0b;
  --bg: #f4f6f8;
  --card-bg: #ffffff;
  --text: #1f2937;
  --text-sub: #6b7280;
  --border: rgba(0, 0, 0, 0.08);
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f172a;
    --card-bg: #1e293b;
    --text: #f1f5f9;
    --text-sub: #94a3b8;
    --border: rgba(255, 255, 255, 0.1);
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
    --main-soft: rgba(30, 115, 190, 0.2);
  }
}

*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.card {
  width: 100%;
  max-width: 420px;
  background: var(--card-bg);
  border-radius: 16px;
  box-shadow: var(--shadow);
  padding: 110px 28px 24px;
  position: relative;
  overflow: hidden;
}
@media (max-width: 480px) {
  body { padding: 16px 12px; }
  .card { padding: 96px 18px 20px; }
  .cover { height: 96px; }
  .avatars { margin-top: -50px; gap: 10px; }
  .avatar-main { width: 90px; height: 90px; }
  .avatar-sub { width: 60px; height: 60px; }
}

.cover {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 110px;
  background: var(--main) url('../image/cover.jpg') center top/cover no-repeat;
}

.header {
  text-align: center;
  margin-bottom: 22px;
}

.avatars {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 12px;
  margin: -68px auto 14px;
  position: relative;
  z-index: 1;
}

.avatar {
  display: block;
  border-radius: 50%;
  object-fit: cover;
}

.avatar-main {
  width: 120px;
  height: 120px;
  box-shadow: 0 0 0 4px var(--card-bg), 0 4px 10px rgba(0, 0, 0, 0.1);
}

.avatar-sub {
  width: 80px;
  height: 80px;
  box-shadow: 0 0 0 3px var(--card-bg), 0 3px 8px rgba(0, 0, 0, 0.08);
}

.name {
  margin: 0 0 4px;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.kanji {
  margin: 0 0 12px;
  font-size: 13px;
  color: var(--text-sub);
}

.title {
  margin: 0;
  font-size: 12.5px;
  color: var(--text-sub);
  line-height: 1.75;
}

.bio {
  margin: 0 0 24px;
  font-size: 13.5px;
  padding: 14px 16px;
  background: var(--main-soft);
  border-radius: 10px;
  border-left: 3px solid var(--main);
}

.section-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--text-sub);
  text-transform: uppercase;
  margin: 0 0 10px;
}

.skills {
  list-style: none;
  padding: 0;
  margin: 0 0 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.skills li {
  font-size: 11.5px;
  background: var(--main);
  color: #ffffff;
  padding: 5px 11px;
  border-radius: 999px;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.skills li.interest {
  background: #7c3aed;
  color: #ffffff;
}
.skills.aws li {
  background: #ff9900;
  color: #1f2937;
}

.certifications {
  display: flex;
  justify-content: center;
  margin: 0 0 22px;
}
.certifications iframe {
  color-scheme: light;
  background: #ffffff;
}

.sns {
  list-style: none;
  padding: 0;
  margin: 0 0 22px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}
.sns a {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 10px;
  padding: 9px 12px;
  min-height: 48px;
  border-radius: 10px;
  border: 1px solid var(--border);
  color: var(--text);
  text-decoration: none;
  transition: transform 0.15s ease;
}
.sns a:hover,
.sns a:focus-visible {
  transform: translateY(-1px);
  outline: none;
}
.sns svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  fill: currentColor;
}
.sns .text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1.2;
}
.sns .label {
  font-size: 11.5px;
  font-weight: 600;
}
.sns .handle {
  font-size: 9.5px;
  font-weight: 500;
  color: var(--text-sub);
  margin-top: 2px;
  letter-spacing: 0.01em;
}

.website {
  margin: 0 0 4px;
}
.website a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: 12px;
  border: 1px solid var(--border);
  color: var(--text);
  text-decoration: none;
  transition: transform 0.15s ease;
}
.website a:hover,
.website a:focus-visible {
  transform: translateY(-1px);
  outline: none;
}
.website .globe {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}
.website .url {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.website .arrow {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  opacity: 0.5;
  margin-left: auto;
}

footer {
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  font-size: 10.5px;
  color: var(--text-sub);
  text-align: center;
  letter-spacing: 0.05em;
}