/* AoMocha common styles - shared across all pages */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #f4f4f6;
  --bg2: #ffffff;
  --text: #1a1a2e;
  --text-muted: #666;
  --border: rgba(0,0,0,0.1);
  --nav-bg: #ffffff;
  --nav-border: rgba(0,0,0,0.08);
  --accent: #5b6af0;
  --accent-hover: #7c8fff;
  --stroke-color: #1a1a2e;
}

[data-theme="dark"] {
  --bg: #111318;
  --bg2: #1a1d26;
  --text: #e8e8f0;
  --text-muted: #888;
  --border: rgba(255,255,255,0.08);
  --nav-bg: #15171f;
  --nav-border: rgba(255,255,255,0.07);
  --accent: #7c8fff;
  --accent-hover: #a5b0ff;
  --stroke-color: #e8e8f0;
}

@media (prefers-color-scheme: dark) {
  [data-theme="auto"] {
    --bg: #111318;
    --bg2: #1a1d26;
    --text: #e8e8f0;
    --text-muted: #888;
    --border: rgba(255,255,255,0.08);
    --nav-bg: #15171f;
    --nav-border: rgba(255,255,255,0.07);
    --accent: #7c8fff;
    --accent-hover: #a5b0ff;
    --stroke-color: #e8e8f0;
  }
}

html, body {
  height: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans JP', sans-serif;
  background: var(--bg);
  color: var(--text);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  transition: background 0.2s, color 0.2s;
}

/* ナビバー */
.topbar {
  background: var(--nav-bg);
  border-bottom: 1px solid var(--nav-border);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0 1.5rem;
  height: 56px;
  position: sticky;
  top: 0;
  z-index: 100;
  flex-shrink: 0;
}

.topbar img {
  height: 36px;
  width: auto;
}

.hamburger {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.4rem;
  display: flex;
  flex-direction: column;
  gap: 5px;
  opacity: 0.6;
  flex-shrink: 0;
}
.hamburger:hover { opacity: 1; }
.hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
}

/* フッター */
.site-footer {
  text-align: center;
  padding: 12px;
  font-size: 12px;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  opacity: 0.6;
}

.site-footer a {
  color: inherit;
  text-decoration: none;
}