/* Shared site format for ishiwari.net non-article pages.
   Aligned with /assets/article-format.css variables and visual language. */
:root {
  --site-bg: var(--article-bg, #fafbfd);
  --site-card: var(--article-card, #ffffff);
  --site-border: var(--article-border, #e2e6ef);
  --site-accent: var(--article-accent, #4361ee);
  --site-accent-2: var(--article-accent-2, #7b2ff7);
  --site-text: var(--article-text, #23272f);
  --site-sub: var(--article-sub, #636b7e);
  --site-code-bg: var(--article-code-bg, #f0f2f8);
  --site-cover-1: var(--article-cover-1, #1a1a2e);
  --site-cover-2: var(--article-cover-2, #16213e);
  --site-cover-3: var(--article-cover-3, #0f3460);
}

.site-page,
.site-page * {
  box-sizing: border-box;
}

.site-page {
  margin: 0;
  font-family: "Helvetica Neue", "Hiragino Kaku Gothic ProN", "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--site-bg);
  color: var(--site-text);
  line-height: 1.8;
  font-size: 15px;
}

.site-cover {
  position: relative;
  background: linear-gradient(135deg, var(--site-cover-1) 0%, var(--site-cover-2) 50%, var(--site-cover-3) 100%);
  color: #fff;
  text-align: center;
  padding: 78px 24px 58px;
}

.site-cover .badge,
.site-badge {
  display: inline-block;
  border: 1px solid rgba(255,255,255,.25);
  border-radius: 20px;
  padding: 4px 18px;
  font-size: .78rem;
  letter-spacing: .08em;
  color: #c9d5ff;
  margin-bottom: 18px;
}

.site-cover h1 {
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  font-weight: 800;
  line-height: 1.35;
  margin: 0 0 10px;
}

.site-cover h1 span {
  background: linear-gradient(90deg, #00d2ff, #a78bfa);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.site-cover .lead {
  max-width: 760px;
  margin: 0 auto;
  color: #d9e2ff;
  font-size: .98rem;
}

.site-cover .meta {
  color: #b7c1dc;
  font-size: .88rem;
  margin-top: 16px;
}

.site-main {
  width: min(100%, 1060px);
  margin: 0 auto;
  padding: 40px 24px 80px;
}

.site-section {
  margin-bottom: 28px;
}

.site-section-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--site-accent);
  border-left: 4px solid var(--site-accent);
  padding-left: 14px;
  margin: 0 0 18px;
}

.site-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.site-card,
.site-panel {
  background: var(--site-card);
  border: 1px solid var(--site-border);
  border-radius: 12px;
  padding: 20px 24px;
  box-shadow: 0 2px 8px rgba(0,0,0,.04);
}

.site-card h2,
.site-card h3 {
  margin: 0 0 8px;
  color: var(--site-accent);
  font-size: 1.05rem;
  line-height: 1.45;
}

.site-card p,
.site-card li,
.site-panel p,
.site-panel li {
  color: var(--site-text);
}

.site-card p,
.site-panel p {
  margin: 0 0 12px;
}

.site-muted,
.site-lead {
  color: var(--site-sub);
}

.site-actions,
.cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.site-button,
.btn {
  display: inline-block;
  padding: 8px 13px;
  border-radius: 10px;
  border: 1px solid var(--site-border);
  background: color-mix(in srgb, var(--site-accent) 12%, var(--site-card));
  color: var(--site-accent);
  text-decoration: none;
  font-weight: 700;
  transition: background .15s, border-color .15s, transform .15s;
}

.site-button:hover,
.btn:hover {
  background: color-mix(in srgb, var(--site-accent) 20%, var(--site-card));
  border-color: color-mix(in srgb, var(--site-accent) 45%, var(--site-border));
  transform: translateY(-1px);
}

.quick-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.quick-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--site-border);
  border-radius: 999px;
  padding: 6px 10px;
  background: color-mix(in srgb, var(--site-accent) 8%, var(--site-card));
  color: var(--site-text);
  text-decoration: none;
  font-size: .92rem;
}

.quick-item:hover {
  background: color-mix(in srgb, var(--site-accent) 16%, var(--site-card));
}

.empty {
  color: var(--site-sub);
  font-size: .92rem;
  margin: 0;
}

.fav-btn {
  border: 1px solid var(--site-border);
  background: color-mix(in srgb, var(--site-accent) 12%, var(--site-card));
  color: #f0a500;
  border-radius: 10px;
  min-width: 36px;
  height: 32px;
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
}

.fav-btn:hover {
  background: color-mix(in srgb, var(--site-accent) 20%, var(--site-card));
}

.fav-btn[aria-pressed="false"] {
  color: var(--site-sub);
}

.card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
}

.site-footer {
  margin-top: 18px;
  color: var(--site-sub);
  font-size: .85rem;
  text-align: center;
}

.site-note {
  background: color-mix(in srgb, var(--site-accent) 12%, var(--site-card));
  border-left: 4px solid var(--site-accent);
  padding: 14px 18px;
  border-radius: 0 8px 8px 0;
  margin: 18px 0 0;
  color: var(--site-text);
}

.site-page ul,
.site-page ol {
  padding-left: 22px;
  margin: 8px 0 0;
}

@media (max-width: 700px) {
  .site-cover {
    padding: 60px 18px 42px;
  }

  .site-main {
    padding: 28px 18px 60px;
  }

  .site-card,
  .site-panel {
    padding: 18px;
  }
}