/*
 * RyakuRyaku UI foundation, adapted from the Digital Agency Design System
 * example components/global tokens (MIT License, Copyright (c) 2025 デジタル庁).
 * See THIRD_PARTY_NOTICES.md.
 */
:root {
  --blue-50: #e8f1fe;
  --blue-600: #3460fb;
  --blue-800: #0031d8;
  --blue-900: #0017c1;
  --blue-1000: #00118f;
  --gray-50: #f2f2f2;
  --gray-100: #e6e6e6;
  --gray-200: #cccccc;
  --gray-600: #666666;
  --gray-800: #333333;
  --gray-900: #1a1a1a;
  --yellow-50: #fbf5e0;
  --yellow-300: #ffd43d;
  --yellow-900: #927200;
  --red-800: #ec0000;
  --white: #ffffff;
  --black: #000000;
  --font-sans: "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --content: 68rem;
}

* { box-sizing: border-box; }
html { font-family: var(--font-sans); color: var(--gray-900); background: var(--white); }
body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
  background: var(--white);
  line-height: 1.7;
  -webkit-text-size-adjust: 100%;
}
button, input { font: inherit; }
a { color: var(--blue-1000); text-underline-offset: 0.18em; }
a:hover { color: var(--blue-900); text-decoration-thickness: 0.18em; }
:focus-visible {
  outline: 0.25rem solid var(--black);
  outline-offset: 0.125rem;
  border-radius: 0.25rem;
  box-shadow: 0 0 0 0.125rem var(--yellow-300);
}

.site-header,
.site-footer {
  max-width: var(--content);
  margin: 0 auto;
  padding: 1rem 1.25rem;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
}
.site-header { border-bottom: 1px solid var(--gray-100); }
.brand { font-weight: 700; font-size: 1.15rem; color: var(--gray-900); text-decoration: none; letter-spacing: -0.03em; }
.product-kind { color: var(--gray-600); font-size: 0.84rem; }
.layout { max-width: var(--content); margin: 0 auto; padding: 2rem 1.25rem 4rem; }
.hero { max-width: 50rem; }
.eyebrow { margin: 0 0 0.35rem; font-size: 0.88rem; font-weight: 700; color: var(--blue-800); }
h1, h2, h3 { line-height: 1.35; letter-spacing: -0.02em; }
h1 { margin: 0; font-size: clamp(1.9rem, 6vw, 3rem); }
h2 { margin: 0; font-size: clamp(1.45rem, 4vw, 2rem); }
h3 { margin: 0; font-size: 1.08rem; }
.lead { margin: 1rem 0 0; max-width: 44rem; color: var(--gray-800); }

.analyze-form { margin-top: 2rem; }
.field-label { display: block; margin-bottom: 0.45rem; font-weight: 700; }
.field-row { display: flex; gap: 0.6rem; align-items: stretch; }
.text-input {
  width: 100%;
  min-width: 0;
  min-height: 3rem;
  padding: 0.68rem 0.85rem;
  color: var(--gray-900);
  background: var(--white);
  border: 1px solid var(--gray-600);
  border-radius: 0.35rem;
}
.text-input:hover { border-color: var(--black); }
.text-input[aria-invalid="true"] { border: 2px solid var(--red-800); }
.button {
  min-height: 3rem;
  border: 2px solid transparent;
  border-radius: 0.4rem;
  padding: 0.65rem 1.2rem;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
}
.button-primary { color: var(--white); background: var(--blue-800); }
.button-primary:hover { background: var(--blue-1000); }
.button:disabled { cursor: wait; opacity: 0.65; }
.support-text, .error-text { margin: 0.4rem 0 0; font-size: 0.88rem; }
.support-text { color: var(--gray-600); }
.error-text { color: var(--red-800); font-weight: 700; }

.status-panel,
.notice {
  margin-top: 2rem;
  padding: 1rem;
  border-radius: 0.4rem;
}
.status-panel { display: flex; gap: 0.8rem; background: var(--blue-50); border-left: 0.3rem solid var(--blue-800); }
.status-panel p { margin: 0.1rem 0 0; }
.spinner { width: 1.2rem; height: 1.2rem; margin-top: 0.2rem; border: 0.18rem solid var(--gray-200); border-top-color: var(--blue-800); border-radius: 50%; animation: spin 0.8s linear infinite; flex: none; }
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .spinner { animation: none; border-top-color: var(--gray-600); } }

.result { margin-top: 2.5rem; padding-top: 2rem; border-top: 2px solid var(--gray-900); }
.result-header { display: flex; align-items: start; justify-content: space-between; gap: 1rem; }
.status-badge { display: inline-flex; padding: 0.2rem 0.55rem; border: 1px solid var(--gray-600); border-radius: 0.3rem; font-size: 0.78rem; font-weight: 700; }
.summary { margin: 1rem 0 0; font-size: 1.12rem; font-weight: 600; max-width: 48rem; }
.effective-date { margin: 0.5rem 0 0; color: var(--gray-600); }
.changes { display: grid; gap: 1rem; margin-top: 1.5rem; }
.change-card { border: 1px solid var(--gray-200); border-radius: 0.45rem; padding: 1rem; }
.change-card h3 { margin-bottom: 0.8rem; }
.fact-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.8rem; }
.fact { background: var(--gray-50); padding: 0.75rem; border-radius: 0.3rem; }
.fact dt { font-size: 0.78rem; font-weight: 700; color: var(--gray-600); }
.fact dd { margin: 0.25rem 0 0; }
.evidence { margin-top: 0.9rem; padding-left: 0.8rem; border-left: 0.25rem solid var(--blue-600); color: var(--gray-800); }
.notice-caution { background: var(--yellow-50); border-left: 0.3rem solid var(--yellow-900); }
.notice ul { margin-bottom: 0; }
.source-block { margin-top: 1.5rem; padding-top: 1rem; border-top: 1px solid var(--gray-100); }
.source-block a { overflow-wrap: anywhere; }
.disclaimer { margin-top: 1.5rem; color: var(--gray-600); font-size: 0.85rem; }

.next-section { margin-top: 3.5rem; padding-top: 2rem; border-top: 1px solid var(--gray-200); }
.next-grid { margin-top: 1rem; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0.8rem; }
.next-grid article { padding: 0.9rem; border: 1px solid var(--gray-200); border-radius: 0.4rem; }
.next-grid p { margin: 0.45rem 0 0; color: var(--gray-800); }
.site-footer { border-top: 1px solid var(--gray-100); color: var(--gray-600); font-size: 0.78rem; }

[hidden] { display: none !important; }

@media (max-width: 42rem) {
  .layout { padding-top: 1.5rem; }
  .product-kind { display: none; }
  .field-row { flex-direction: column; }
  .button { width: 100%; }
  .result-header { flex-direction: column; }
  .fact-grid, .next-grid { grid-template-columns: 1fr; }
}