:root {
  color-scheme: light;
  --ink: #17324a;
  --ink-soft: #526c7d;
  --blue: #dfeff5;
  --blue-strong: #2c7594;
  --blue-deep: #18546d;
  --paper: #fbfcfb;
  --line: #c9dce4;
  --line-strong: #9fc1ce;
  --tag: #f6fbfc;
  --warning: #fff4e9;
  --warning-ink: #934a20;
  --success: #eaf8f1;
  --shadow: 0 16px 45px rgba(38, 80, 102, 0.1);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", "YuGothic", Meiryo, sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 85% 12%, rgba(220, 240, 247, 0.72), transparent 25rem),
    var(--paper);
  line-height: 1.65;
  overflow-x: hidden;
}

button, input, textarea { font: inherit; }

button { cursor: pointer; }

a { color: var(--blue-deep); }

a:hover { color: var(--blue-strong); }

.shell { width: min(1120px, calc(100% - 40px)); margin-inline: auto; }

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 20;
  padding: 0.65rem 0.85rem;
  color: #fff;
  background: var(--blue-deep);
  border-radius: 0.5rem;
  transform: translateY(-150%);
}

.skip-link:focus { transform: translateY(0); }

.site-header {
  border-bottom: 1px solid rgba(159, 193, 206, 0.5);
  background: rgba(251, 252, 251, 0.85);
  backdrop-filter: blur(10px);
}

.header-inner { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }

.brand { display: inline-flex; align-items: center; gap: 0.7rem; color: var(--ink); text-decoration: none; }

.brand > span:last-child { display: grid; gap: 0.08rem; line-height: 1.1; }

.brand strong { font-size: 1.05rem; letter-spacing: 0.12em; }

.brand small { color: var(--ink-soft); font-size: 0.68rem; letter-spacing: 0.08em; }

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  color: #fff;
  background: var(--blue-deep);
  border-radius: 7px 7px 7px 2px;
  box-shadow: 4px 4px 0 #bfdde6;
  font-weight: 700;
}

.header-link { display: inline-flex; min-height: 44px; align-items: center; font-size: 0.9rem; font-weight: 700; }

.hero { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(310px, 0.95fr); gap: clamp(2rem, 7vw, 6.5rem); align-items: center; padding-block: clamp(3rem, 7vw, 6.5rem) clamp(2.8rem, 6vw, 5rem); }

.eyebrow { margin: 0 0 0.65rem; color: var(--blue-strong); font-size: 0.75rem; font-weight: 800; letter-spacing: 0.14em; text-transform: uppercase; }

h1, h2, h3, p { margin-top: 0; }

h1 { max-width: 14ch; margin-bottom: 1.25rem; font-size: clamp(2.3rem, 5.4vw, 4.6rem); letter-spacing: -0.06em; line-height: 1.1; }

h1 em { color: var(--blue-strong); font-style: normal; }

.hero-lede { max-width: 32rem; margin-bottom: 1.5rem; color: var(--ink-soft); font-size: clamp(1rem, 1.8vw, 1.15rem); }

.hero-badges { display: flex; flex-wrap: wrap; gap: 0.55rem; }

.hero-badges span { padding: 0.3rem 0.7rem; color: var(--blue-deep); background: var(--blue); border: 1px solid var(--line); border-radius: 999px; font-size: 0.78rem; font-weight: 700; }

.hero-art { position: relative; min-width: 0; }

.hero-art::before { position: absolute; inset: 12% -7% -10% 7%; z-index: -1; border: 1px dashed var(--line-strong); border-radius: 35% 5% 5% 8%; content: ""; transform: rotate(-3deg); }

.hero-art img { display: block; width: 100%; max-height: 300px; object-fit: cover; border: 10px solid rgba(255, 255, 255, 0.75); border-radius: 5px 28px 5px 28px; box-shadow: var(--shadow); }

.hero-tag { position: absolute; padding: 0.5rem 0.8rem; color: var(--ink); background: #fff; border: 1px dashed var(--line-strong); box-shadow: 3px 3px 0 rgba(159, 193, 206, 0.42); font-size: 0.74rem; font-weight: 800; }

.hero-tag-one { top: 8%; left: -4%; transform: rotate(-7deg); }

.hero-tag-two { right: -4%; bottom: 7%; transform: rotate(4deg); }

.workspace, .results-section, .saved-section { padding-block: 2.6rem; }

.workspace { padding-top: 2.2rem; }

.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 1.5rem; margin-bottom: 1.4rem; }

h2 { margin-bottom: 0; font-size: clamp(1.6rem, 3vw, 2.2rem); letter-spacing: -0.04em; line-height: 1.2; }

h3 { margin-bottom: 0.35rem; line-height: 1.3; }

.selection-count { margin: 0; padding: 0.4rem 0.75rem; color: var(--blue-deep); background: var(--blue); border-radius: 999px; font-size: 0.83rem; font-weight: 800; white-space: nowrap; }

.search-row { margin-bottom: 1.4rem; }

.search-row > label { display: block; margin-bottom: 0.45rem; font-size: 0.84rem; font-weight: 800; }

.search-control { position: relative; display: flex; align-items: center; gap: 0.3rem; min-height: 52px; padding: 0.25rem 0.35rem 0.25rem 0.9rem; background: #fff; border: 1px solid var(--line); border-radius: 0.65rem; box-shadow: 0 4px 14px rgba(38, 80, 102, 0.04); }

.search-icon { color: var(--blue-strong); font-size: 1.6rem; line-height: 1; }

.search-control input { min-width: 0; flex: 1; padding: 0.5rem; color: var(--ink); background: transparent; border: 0; outline: 0; font-size: 1rem; }

.search-control:focus-within { border-color: var(--blue-strong); box-shadow: 0 0 0 4px rgba(44, 117, 148, 0.17); }

.field-hint { min-height: 1.5em; margin: 0.35rem 0 0; color: var(--ink-soft); font-size: 0.8rem; }

.text-button { display: inline-flex; min-height: 44px; align-items: center; padding: 0.45rem 0.6rem; color: var(--blue-deep); background: transparent; border: 0; border-radius: 0.4rem; font-size: 0.84rem; font-weight: 800; text-decoration: underline; text-underline-offset: 0.15em; }

.text-button:hover { background: var(--blue); }

.text-button:disabled { cursor: not-allowed; opacity: 0.45; }

.category-list { display: grid; gap: 1rem; }

.category-card { position: relative; padding: 1.25rem; background: rgba(246, 251, 252, 0.82); border: 1px dashed var(--line-strong); border-radius: 0.5rem 1.15rem 0.5rem 1.15rem; }

.category-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; margin-bottom: 0.9rem; }

.category-heading h3 { display: flex; align-items: center; gap: 0.55rem; margin: 0; font-size: 1.05rem; }

.category-icon { display: inline-grid; width: 30px; height: 30px; place-items: center; color: #fff; background: var(--blue-deep); border-radius: 4px 4px 4px 1px; font-size: 0.76rem; font-weight: 900; }

.category-hint { margin: 0; color: var(--ink-soft); font-size: 0.8rem; }

.option-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 0.6rem; }

.option-button { display: grid; min-height: 62px; align-content: center; gap: 0.2rem; padding: 0.65rem 0.75rem; color: var(--ink); text-align: left; background: #fff; border: 1px solid var(--line); border-radius: 0.45rem; transition: border-color 150ms ease, background-color 150ms ease, transform 150ms ease; }

.option-button:hover { border-color: var(--blue-strong); transform: translateY(-1px); }

.option-button.is-selected { color: var(--blue-deep); background: var(--blue); border: 2px solid var(--blue-strong); padding: calc(0.65rem - 1px) calc(0.75rem - 1px); }

.option-button.is-prohibited .option-title::after { display: inline-block; margin-left: 0.35rem; padding: 0.08rem 0.3rem; color: var(--warning-ink); background: var(--warning); border-radius: 999px; content: "禁止"; font-size: 0.65rem; }

.option-title { font-size: 0.92rem; font-weight: 800; line-height: 1.25; }

.option-clue { color: var(--ink-soft); font-size: 0.76rem; line-height: 1.35; }

.option-button:focus-visible, .button:focus-visible, .text-button:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible { outline: 3px solid #f5a65b; outline-offset: 3px; }

.action-bar { display: flex; flex-wrap: wrap; gap: 0.7rem; padding-top: 1.45rem; }

.button { display: inline-flex; min-height: 46px; align-items: center; justify-content: center; padding: 0.65rem 1rem; border-radius: 0.45rem; font-size: 0.92rem; font-weight: 800; }

.button-primary { color: #fff; background: var(--blue-deep); border: 1px solid var(--blue-deep); }

.button-primary:hover { background: #0e4359; }

.button-secondary { color: var(--blue-deep); background: #fff; border: 1px solid var(--line-strong); }

.button-secondary:hover { background: var(--blue); border-color: var(--blue-strong); }

.form-message { min-height: 1.5em; margin: 0.7rem 0 0; color: var(--ink-soft); font-size: 0.86rem; }

.form-message.is-error { color: var(--warning-ink); font-weight: 700; }

.form-message.is-success { color: #1d6e4c; font-weight: 700; }

.empty-search, .empty-saved { display: grid; gap: 0.35rem; padding: 1.2rem; color: var(--ink-soft); background: #fff; border: 1px dashed var(--line-strong); border-radius: 0.55rem; }

.empty-search .button { justify-self: start; margin-top: 0.35rem; }

.results-section { border-top: 1px solid var(--line); }

.results-heading { align-items: center; }

.print-button { white-space: nowrap; }

.summary-intro { margin-bottom: 1rem; }

.summary-callout { padding: 1rem 1.1rem; background: var(--success); border-left: 4px solid #4b9b79; border-radius: 0 0.65rem 0.65rem 0; }

.summary-callout.is-warning { background: var(--warning); border-left-color: #d87c42; }

.summary-callout strong { display: block; margin-bottom: 0.25rem; }

.summary-count { margin: 0 0 0.2rem !important; color: var(--blue-deep) !important; font-weight: 800; }

.summary-callout p { margin-bottom: 0; color: var(--ink-soft); font-size: 0.9rem; }

.warning-list { margin: 0.7rem 0 0; padding-left: 1.25rem; color: var(--warning-ink); font-size: 0.88rem; }

.result-cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }

.result-card { padding: 1.15rem; background: #fff; border: 1px solid var(--line); border-radius: 0.55rem 1rem 0.55rem 1rem; box-shadow: 0 6px 20px rgba(38, 80, 102, 0.05); }

.result-card.is-prohibited { background: #fffaf6; border-color: #e7b68f; }

.result-card-header { display: flex; gap: 0.75rem; align-items: center; margin-bottom: 1rem; }

.result-tag { display: inline-grid; width: 42px; height: 42px; flex: 0 0 42px; place-items: center; color: var(--blue-deep); background: var(--blue); border: 1px dashed var(--line-strong); border-radius: 4px 4px 4px 1px; font-weight: 900; }

.result-category { margin: 0 0 0.1rem; color: var(--blue-strong); font-size: 0.73rem; font-weight: 800; letter-spacing: 0.07em; }

.result-card h3 { margin: 0; font-size: 1.08rem; }

.detail-grid { display: grid; grid-template-columns: minmax(7.5rem, 0.35fr) minmax(0, 1fr); margin: 0; }

.detail-grid dt, .detail-grid dd { padding: 0.55rem 0; border-top: 1px solid #e5eef1; font-size: 0.86rem; }

.detail-grid dt { color: var(--ink-soft); font-weight: 800; }

.detail-grid dd { margin: 0; }

.save-panel { display: grid; grid-template-columns: minmax(220px, 0.72fr) minmax(0, 1.28fr); gap: 2rem; margin-top: 2rem; padding: 1.3rem; background: var(--blue); border: 1px solid var(--line); border-radius: 0.6rem 1.1rem 0.6rem 1.1rem; }

.save-panel h3 { font-size: 1.25rem; }

.save-panel p { color: var(--ink-soft); font-size: 0.86rem; }

.save-form { display: grid; gap: 0.8rem; }

.field-grid { display: grid; gap: 0.8rem; }

.field-grid label { display: grid; gap: 0.35rem; color: var(--ink); font-size: 0.88rem; font-weight: 800; }

.field-grid label > span { color: var(--ink-soft); font-size: 0.73rem; font-weight: 500; }

.field-grid input, .field-grid textarea { width: 100%; padding: 0.7rem 0.75rem; color: var(--ink); background: #fff; border: 1px solid var(--line-strong); border-radius: 0.45rem; font-size: 1rem; }

.field-grid textarea { min-height: 92px; resize: vertical; }

.saved-section { border-top: 1px solid var(--line); }

.danger-button { color: var(--warning-ink); }

.saved-list { min-height: 4rem; }

.saved-items { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.8rem; }

.saved-item { padding: 1rem; background: #fff; border: 1px solid var(--line); border-radius: 0.5rem; }

.saved-item-header { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; }

.saved-item h3 { margin: 0; font-size: 1rem; }

.saved-item time { color: var(--ink-soft); font-size: 0.75rem; white-space: nowrap; }

.saved-conditions, .saved-note { margin: 0.55rem 0 0; color: var(--ink-soft); font-size: 0.8rem; }

.saved-note { color: var(--ink); white-space: pre-wrap; }

.saved-actions { display: flex; align-items: center; gap: 0.65rem; margin-top: 0.7rem; }

.site-footer { margin-top: 3rem; padding-block: 2.7rem; color: #dbeaf0; background: #17324a; }

.footer-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 2rem; }

.site-footer h2 { margin-bottom: 0.55rem; color: #fff; font-size: 0.92rem; letter-spacing: 0; }

.site-footer p { margin-bottom: 0.75rem; font-size: 0.78rem; }

.site-footer a { color: #bce3ee; }

.footer-brand { color: #fff; font-size: 1rem !important; font-weight: 800; letter-spacing: 0.08em; }

[hidden] { display: none !important; }

@media (max-width: 820px) {
  .hero { grid-template-columns: 1fr; gap: 2.3rem; }
  .hero-copy { max-width: 42rem; }
  .hero-art { width: min(100%, 520px); justify-self: end; }
  .hero-art::before { right: 0; }
  .result-cards, .saved-items { grid-template-columns: 1fr; }
  .save-panel { grid-template-columns: 1fr; gap: 1rem; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > :first-child { grid-column: 1 / -1; }
}

@media (max-width: 520px) {
  .shell { width: min(100% - 28px, 1120px); }
  .header-inner { min-height: 64px; }
  .header-link { font-size: 0.78rem; }
  .hero { padding-block: 2.6rem 2.6rem; }
  h1 { font-size: clamp(2.15rem, 13vw, 3.5rem); }
  .hero-art img { max-height: 220px; border-width: 7px; }
  .hero-tag { font-size: 0.67rem; }
  .hero-tag-one { left: 0; }
  .hero-tag-two { right: 0; }
  .category-card { padding: 0.9rem; }
  .category-heading { display: block; }
  .category-hint { margin-top: 0.4rem; }
  .option-grid { grid-template-columns: 1fr; }
  .action-bar { display: grid; }
  .action-bar .button { width: 100%; }
  .section-heading { align-items: start; }
  .results-heading { display: grid; }
  .print-button { width: 100%; }
  .detail-grid { grid-template-columns: 1fr; }
  .detail-grid dt { padding-bottom: 0.1rem; border-top: 0; }
  .detail-grid dd { padding-top: 0; }
  .footer-grid { grid-template-columns: 1fr; gap: 1rem; }
  .footer-grid > :first-child { grid-column: auto; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}

@media print {
  .site-header, .hero, .workspace, .save-panel, .saved-section, .site-footer, .print-button { display: none !important; }
  .results-section { display: block !important; padding: 0; border: 0; }
  .shell { width: 100%; }
  .result-cards { grid-template-columns: 1fr 1fr; }
  .result-card { break-inside: avoid; box-shadow: none; }
}


/* SOU100 Stage A: first-view hierarchy */
.stage-a-hero { min-width: 0; min-height: 0 !important; height: auto; grid-template-columns: minmax(0, 1.15fr) minmax(200px, .85fr); align-items: center; gap: clamp(1rem, 2.5vw, 2.5rem); padding-block: clamp(1.25rem, 3vw, 2.5rem) !important; }
.stage-a-hero .hero-copy, .stage-a-hero .intro-copy { min-width: 0; min-height: 0 !important; padding: clamp(1rem, 2.7vw, 2.25rem) !important; }
.stage-a-hero h1 { max-width: none !important; margin: 0 0 .75rem !important; font-size: clamp(2rem, 4vw, 3.35rem) !important; line-height: 1.14 !important; letter-spacing: -.035em; word-break: auto-phrase; }
.stage-a-lede { max-width: 52rem; margin: .25rem 0 0 !important; color: inherit; font-size: clamp(1rem, 1.25vw, 1.15rem) !important; line-height: 1.55 !important; }
.stage-a-steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .45rem 1rem; margin: .8rem 0 0; padding-left: 1.35rem; font-size: .92rem; line-height: 1.45; }
.stage-a-steps li { min-width: 0; padding-left: .12rem; }
.stage-a-extras { margin-top: .7rem; font-size: .8rem; }
.stage-a-extras > * { margin-top: .35rem !important; margin-bottom: 0 !important; }
.stage-a-cta { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; margin-top: .9rem; padding: .7rem 1.1rem; border: 2px solid #fff; border-radius: 999px; background: #17412f; color: #fff !important; font-weight: 800; line-height: 1.25; text-align: center; text-decoration: none; }
.stage-a-cta:hover { background: #0f3324; color: #fff !important; }
.stage-a-cta:focus-visible { outline: 3px solid #005fcc; outline-offset: 3px; box-shadow: 0 0 0 6px #fff; }
.stage-a-hero :is(.hero-visual, .hero-art, .hero-image) { width: 100%; min-width: 0; min-height: 0 !important; height: min(24vw, 280px); max-height: 280px; margin: 0; align-self: center; }
.stage-a-hero :is(.hero-visual, .hero-art, .hero-image) img { display: block; width: 100%; height: 100%; max-height: 280px; object-fit: cover; }

@media (max-width: 640px) {
  .stage-a-hero { display: block; min-height: 0 !important; height: auto !important; padding: 0 !important; }
  .stage-a-hero .hero-copy, .stage-a-hero .intro-copy { min-height: 0 !important; padding: 1.1rem 1rem 1.2rem !important; }
  .stage-a-hero h1 { margin-bottom: .55rem !important; font-size: clamp(1.8rem, 8vw, 2.35rem) !important; line-height: 1.18 !important; }
  .stage-a-lede { font-size: .94rem !important; line-height: 1.5 !important; }
  .stage-a-steps { grid-template-columns: 1fr; gap: .12rem; margin-top: .55rem; font-size: .87rem; }
  .stage-a-extras { margin-top: .55rem; font-size: .74rem; }
  .stage-a-cta { min-height: 46px; margin-top: .7rem; padding: .62rem 1rem; }
  .stage-a-hero :is(.hero-visual, .hero-art, .hero-image) { display: none !important; }
  .workspace .section-heading { gap: .45rem !important; margin-bottom: .8rem !important; }
  .workspace .section-heading h2 { margin: 0 !important; font-size: clamp(1.2rem, 5.5vw, 1.55rem) !important; line-height: 1.25 !important; letter-spacing: 0 !important; }
  .workspace .section-heading p { margin: .35rem 0 0 !important; font-size: .86rem !important; line-height: 1.45 !important; }
  .workspace { padding-top: 1.25rem !important; }
}