/* ============================================
   gramdiet - Static Pages Stylesheet
   Mobile-first responsive CSS
   ============================================ */
/* --- Base Reset & Typography --- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  font-size: 16px;
  line-height: 1.6;
  -webkit-text-size-adjust: 100%;
}
/* --- Color Palette (CSS Custom Properties) --- */
:root {
  --color-bg: #f7faf7;
  --color-text: #222;
  --color-text-muted: #666;
  --color-accent: #2b8a6f;
  --color-accent-dark: #1f6b55;
  --color-white: #fff;
  --color-border: #e0e6e0;
  --color-shadow: rgba(0, 0, 0, 0.08);
  --font-family: 'Noto Sans JP', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --container-max: 1000px;
  --container-padding: 16px;
  --radius: 8px;
  --transition: 0.2s ease;
}
/* --- Body Styles (for static pages) ---
   Note: These styles apply globally but are designed
   not to interfere with React's #root content.
   The flexbox layout is only applied when the body has
   .static-hero and .static-footer children (static pages).
--- */
body {
  font-family: var(--font-family);
  background-color: var(--color-bg);
  color: var(--color-text);
  min-height: 100vh;
}
/* Apply flexbox layout only when static page structure is present */
body:has(.static-hero):has(.static-footer) {
  display: flex;
  flex-direction: column;
}
/* --- Links --- */
a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover,
a:focus {
  color: var(--color-accent-dark);
  text-decoration: underline;
}
a:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}
/* --- Container --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}
/* --- Static Hero (Header for static pages) --- */
.static-hero {
  padding: 32px var(--container-padding);
  text-align: center;
}
.static-hero img {
  width: min(98%, 326px);
  margin: 0 auto 1rem;
}
.static-hero h1 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.static-hero .tagline {
  font-size: 1rem;
  opacity: 0.95;
  margin-bottom: 16px;
}
.static-hero .description {
  max-width: 720px;
  margin: 0 auto;
  font-size: 0.9375rem;
  opacity: 0.9;
  line-height: 1.7;
}
.static-hero a {
  color: var(--color-white);
  text-decoration: underline;
}
.static-hero a:hover,
.static-hero a:focus {
  opacity: 0.85;
}
/* --- Main Content Area --- */
.main-content {
  flex: 1;
  padding: 24px 0;
}
.main-content h1 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--color-text);
}
.main-content h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-top: 32px;
  margin-bottom: 12px;
  color: var(--color-text);
}
.main-content p {
  margin-bottom: 16px;
  line-height: 1.8;
}
.main-content ul,
.main-content ol {
  margin-bottom: 16px;
  padding-left: 24px;
}
.main-content li {
  margin-bottom: 8px;
  line-height: 1.7;
}
.main-content .update-date {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 24px;
}
/* --- Card Component --- */
.card {
  background: var(--color-white);
  border-radius: var(--radius);
  box-shadow: 0 2px 8px var(--color-shadow);
  padding: 24px;
  margin-bottom: 24px;
}
.card h2 {
  margin-top: 0;
}
/* --- Button Component --- */
.btn {
  display: inline-block;
  padding: 12px 24px;
  background-color: var(--color-accent);
  color: var(--color-white);
  font-family: var(--font-family);
  font-size: 1rem;
  font-weight: 500;
  text-align: center;
  text-decoration: none;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background-color var(--transition), transform var(--transition);
}
.btn:hover,
.btn:focus {
  background-color: var(--color-accent-dark);
  text-decoration: none;
  color: var(--color-white);
}
.btn:focus {
  outline: 2px solid var(--color-accent-dark);
  outline-offset: 2px;
}
.btn:active {
  transform: translateY(1px);
}
/* --- Table Styles --- */
.table-responsive {
  overflow-x: auto;
  margin-bottom: 16px;
}
table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-white);
  border-radius: var(--radius);
  overflow: hidden;
}
th,
td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}
th {
  background-color: var(--color-accent);
  color: var(--color-white);
  font-weight: 600;
}
tr:last-child td {
  border-bottom: none;
}
tr:hover td {
  background-color: var(--color-bg);
}
/* --- Footer --- */
.static-footer {
  background-color: var(--color-white);
  border-top: 1px solid var(--color-border);
  padding: 24px var(--container-padding);
  text-align: center;
  margin-top: auto;
}
.static-footer nav {
  margin-bottom: 12px;
}
.static-footer nav a {
  display: inline-block;
  margin: 4px 8px;
  font-size: 0.875rem;
}
.static-footer .copyright {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}
/* --- FAQ specific styles --- */
.faq-item {
  margin-bottom: 24px;
}
.faq-item h2 {
  font-size: 1.125rem;
  color: var(--color-accent);
  margin-top: 0;
  margin-bottom: 8px;
}
.faq-item p {
  background-color: var(--color-white);
  padding: 16px;
  border-radius: var(--radius);
  border-left: 4px solid var(--color-accent);
  margin-bottom: 0;
}
/* --- Back to Home Link --- */
.back-home {
  display: inline-block;
  margin-bottom: 24px;
  font-size: 0.875rem;
}
.back-home::before {
  content: '← ';
}
/* ============================================
   Responsive Breakpoints
   ============================================ */
/* Tablet and above (768px+) */
@media (min-width: 768px) {
  :root {
    --container-padding: 32px;
  }
  .static-hero {
    padding: 48px var(--container-padding);
  }
  .static-hero h1 {
    font-size: 2.25rem;
  }
  .static-hero .tagline {
    font-size: 1.125rem;
  }
  .static-hero .description {
    font-size: 1rem;
  }
  .main-content {
    padding: 40px 0;
  }
  .main-content h1 {
    font-size: 1.875rem;
  }
  .main-content h2 {
    font-size: 1.375rem;
  }
  .card {
    padding: 32px;
  }
  .static-footer {
    padding: 32px var(--container-padding);
  }
  .static-footer nav a {
    margin: 0 12px;
    font-size: 0.9375rem;
  }
}
/* Desktop (1024px+) */
@media (min-width: 1024px) {
  .static-hero {
    padding: 64px var(--container-padding);
  }
  .static-hero h1 {
    font-size: 2.5rem;
  }
  .main-content {
    padding: 48px 0;
  }
}
/* ============================================
   Print Styles
   ============================================ */
@media print {
  .static-hero {
    background: none;
    color: var(--color-text);
    border-bottom: 2px solid var(--color-text);
  }
  .static-footer nav {
    display: none;
  }
  a {
    color: var(--color-text);
  }
}