:root {
  --bg: #ffffff;
  --surface: #ffffff;
  --ink: #2c2a27;
  --muted: #6f6a63;
  --line: #e7e0d6;
  --teal: #3d8b7d;
  --teal-dark: #2f6c61;
  --coral: #e07a5f;
  --radius: 16px;
  --maxw: 920px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans",
    "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic", Meiryo, sans-serif;
  line-height: 1.75;
  font-size: 16px;
}

a { color: var(--teal-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.site-header {
  padding: 22px 0;
}
.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 2px;
  font-size: 26px;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: var(--ink);
}
.brand .dot { color: var(--coral); }
.brand-logo { height: 56px; width: auto; display: block; }

/* Hero */
.hero {
  padding: 56px 0 40px;
  text-align: center;
}
.hero h1 {
  font-size: clamp(28px, 5vw, 42px);
  line-height: 1.3;
  margin: 0 0 16px;
  letter-spacing: 0.5px;
}
.hero p {
  max-width: 560px;
  margin: 0 auto;
  color: var(--muted);
  font-size: 17px;
}

/* Sections */
.section {
  padding: 28px 0;
}
.section-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--muted);
  text-transform: uppercase;
  margin: 0 0 18px;
}
.section-title .emoji { font-size: 20px; }

/* Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}
.card {
  display: block;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  color: var(--ink);
  transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
}
.card:hover {
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(44, 42, 39, 0.08);
  border-color: var(--teal);
}
.card h3 {
  margin: 0 0 6px;
  font-size: 19px;
}
.card .url {
  font-size: 13px;
  color: var(--teal-dark);
  word-break: break-all;
}
.card p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 14.5px;
}

/* Content pages */
.page {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  margin: 24px 0 8px;
}
.page h1 {
  font-size: 26px;
  margin: 0 0 8px;
}
.page .lead {
  color: var(--muted);
  margin: 0 0 20px;
}
.info-table {
  width: 100%;
  border-collapse: collapse;
}
.info-table th, .info-table td {
  text-align: left;
  vertical-align: top;
  padding: 14px 8px;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
}
.info-table th {
  width: 34%;
  color: var(--muted);
  font-weight: 700;
  white-space: nowrap;
}
.placeholder {
  background: #fff5ef;
  color: var(--coral);
  border: 1px dashed var(--coral);
  border-radius: 6px;
  padding: 1px 7px;
  font-size: 13px;
}
.back {
  display: inline-block;
  margin: 8px 0 0;
  font-size: 14px;
}

/* Footer */
.site-footer {
  margin-top: 40px;
  border-top: 1px solid var(--line);
  padding: 28px 0 48px;
  color: var(--muted);
  font-size: 14px;
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin: 0 0 14px;
  padding: 0;
  list-style: none;
}
.copyright { font-size: 13px; }