:root {
  color-scheme: light;
  --canvas: #fbfaf7;
  --paper: rgba(255, 255, 255, 0.78);
  --paper-strong: rgba(255, 255, 255, 0.94);
  --ink: #243653;
  --muted: #69768b;
  --line: rgba(88, 105, 139, 0.16);
  --blue: #8fb5ec;
  --blue-strong: #5f86cf;
  --lavender: #b9a8e6;
  --rose: #efb4c1;
  --mint: #b7dbc8;
  --apricot: #f3cfaa;
  --danger: #b85f73;
  --radius: 22px;
  --shadow: 0 18px 50px rgba(76, 91, 125, 0.09);
  font-family: "Noto Sans JP", "Yu Gothic", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background:
    radial-gradient(circle at 8% 3%, rgba(143,181,236,.26), transparent 27rem),
    radial-gradient(circle at 89% 9%, rgba(185,168,230,.22), transparent 25rem),
    radial-gradient(circle at 24% 58%, rgba(239,180,193,.14), transparent 24rem),
    radial-gradient(circle at 84% 72%, rgba(183,219,200,.17), transparent 25rem),
    linear-gradient(rgba(255,255,255,.42), rgba(255,255,255,.42)),
    var(--canvas);
  background-attachment: fixed;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: .24;
  background-image: repeating-linear-gradient(0deg, rgba(52,66,92,.025) 0 1px, transparent 1px 4px);
  mix-blend-mode: multiply;
}
a { color: inherit; }
button, input, select { font: inherit; }
button { color: inherit; }

.skip-link {
  position: fixed; top: .75rem; left: .75rem; z-index: 20;
  padding: .75rem 1rem; background: var(--paper-strong); color: var(--ink);
  border: 1px solid var(--line); border-radius: 12px; transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }

.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: rgba(255,255,255,.36);
  backdrop-filter: blur(18px);
}
.hero::after {
  content: "";
  position: absolute;
  width: 25rem; height: 15rem; right: -4rem; top: -6rem;
  border-radius: 46% 54% 63% 37% / 42% 43% 57% 58%;
  background: linear-gradient(135deg, rgba(143,181,236,.32), rgba(185,168,230,.2), rgba(239,180,193,.18));
  filter: blur(18px);
}
.hero__inner, .shell, .footer { width: min(1400px, calc(100% - 2rem)); margin-inline: auto; }
.hero__inner {
  position: relative; z-index: 1; display: flex; align-items: end; justify-content: space-between;
  gap: 2rem; padding: 4.2rem 0 3.2rem;
}
.eyebrow { margin: 0 0 .65rem; color: var(--blue-strong); font-size: .72rem; font-weight: 800; letter-spacing: .16em; }
h1, h2, h3, p { overflow-wrap: anywhere; }
h1, h2 { font-family: "Noto Serif JP", "Yu Mincho", serif; color: #27436f; }
h1 { margin: 0; font-size: clamp(2.2rem, 5vw, 4.6rem); line-height: 1.05; letter-spacing: -.045em; }
.lead { max-width: 780px; margin: 1rem 0 0; color: var(--muted); font-size: clamp(1rem, 2vw, 1.15rem); line-height: 1.85; }
.source-link, .secondary-button {
  flex: 0 0 auto; padding: .82rem 1.05rem; border: 1px solid rgba(95,134,207,.24); border-radius: 999px;
  text-decoration: none; background: rgba(255,255,255,.62); box-shadow: 0 8px 24px rgba(76,91,125,.07);
}
.source-link:hover, .secondary-button:hover:not(:disabled) { border-color: var(--blue-strong); background: rgba(255,255,255,.92); }

.shell { padding: 2rem 0 5rem; }
.summary { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: .9rem; }
.metric, .control-panel, .state-card, .recommendations {
  border: 1px solid var(--line); background: var(--paper); box-shadow: var(--shadow); backdrop-filter: blur(16px);
}
.metric { min-height: 118px; padding: 1.2rem; border-radius: 18px; display: flex; flex-direction: column; justify-content: space-between; }
.metric:nth-child(1) { background: linear-gradient(145deg, rgba(143,181,236,.20), rgba(255,255,255,.82)); }
.metric:nth-child(2) { background: linear-gradient(145deg, rgba(185,168,230,.18), rgba(255,255,255,.82)); }
.metric:nth-child(3) { background: linear-gradient(145deg, rgba(183,219,200,.18), rgba(255,255,255,.82)); }
.metric:nth-child(4) { background: linear-gradient(145deg, rgba(243,207,170,.19), rgba(255,255,255,.82)); }
.metric__label { color: var(--muted); font-size: .8rem; }
.metric__value { color: #31527f; font-size: clamp(1.55rem,4vw,2.35rem); letter-spacing: -.04em; }
.metric__value--date { font-size: clamp(1rem,2.4vw,1.55rem); }

.control-panel, .recommendations { margin-top: 1rem; padding: 1.25rem; border-radius: var(--radius); }
.control-grid { display: grid; grid-template-columns: minmax(150px,.7fr) minmax(260px,2fr) minmax(180px,.8fr); gap: 1rem; }
.field { display: grid; gap: .5rem; color: var(--muted); font-size: .78rem; font-weight: 700; }
.field input, .field select {
  width: 100%; min-height: 48px; padding: 0 .9rem; border: 1px solid rgba(88,105,139,.18); border-radius: 14px;
  background: rgba(255,255,255,.76); color: var(--ink); outline: none;
}
.field input:focus, .field select:focus { border-color: var(--blue-strong); box-shadow: 0 0 0 4px rgba(143,181,236,.2); }
.preference-box {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-top: 1rem; padding: 1rem;
  border: 1px solid rgba(185,168,230,.22); border-radius: 16px;
  background: linear-gradient(135deg, rgba(185,168,230,.12), rgba(239,180,193,.10));
}
.preference-box__title { margin: 0; font-weight: 800; }
.preference-box__description { margin: .35rem 0 .7rem; color: var(--muted); font-size: .86rem; }
.chips { display: flex; flex-wrap: wrap; gap: .45rem; }
.chips span { padding: .38rem .62rem; border: 1px solid rgba(95,134,207,.18); border-radius: 999px; color: #496994; background: rgba(143,181,236,.14); font-size: .74rem; }
.chips span:nth-child(3n+2) { color: #705a99; background: rgba(185,168,230,.15); }
.chips span:nth-child(3n) { color: #8d5868; background: rgba(239,180,193,.15); }
.toggle { flex: 0 0 auto; display: inline-flex; align-items: center; gap: .55rem; cursor: pointer; font-size: .88rem; font-weight: 700; }
.toggle input { width: 1.1rem; height: 1.1rem; accent-color: var(--blue-strong); }
.notice { min-height: 1.2em; margin: .8rem 0 0; color: var(--muted); font-size: .8rem; }

.recommendations { background: linear-gradient(135deg, rgba(143,181,236,.13), rgba(185,168,230,.10), rgba(255,255,255,.82)); }
.recommendations__head { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; }
.recommendations__head h2 { margin: 0; font-size: clamp(1.45rem,3vw,2.25rem); letter-spacing: -.03em; }
.recommendations__description { max-width: 820px; margin: .55rem 0 0; color: var(--muted); font-size: .84rem; line-height: 1.7; }
.secondary-button { cursor: pointer; }
.secondary-button:disabled { opacity: .45; cursor: not-allowed; }
.history-summary { display: flex; flex-wrap: wrap; align-items: center; gap: .45rem; min-height: 2rem; margin: .95rem 0; color: var(--muted); font-size: .78rem; }
.history-chip { padding: .35rem .55rem; border: 1px solid var(--line); border-radius: 999px; color: #5e6680; background: rgba(255,255,255,.68); }
.recommendation-grid { display: grid; grid-template-columns: repeat(6,minmax(0,1fr)); gap: .75rem; }

.catalogue-head { display: flex; align-items: end; justify-content: space-between; gap: 1rem; margin: 3.25rem 0 1.15rem; }
.catalogue-head h2 { margin: 0; font-size: clamp(1.8rem,4vw,3rem); letter-spacing: -.04em; }
.result-summary { margin: 0; color: var(--muted); }
.work-grid { display: grid; grid-template-columns: repeat(5,minmax(0,1fr)); gap: 1rem; }
.work-card {
  min-width: 0; border: 1px solid var(--line); border-radius: 18px; overflow: hidden;
  background: rgba(255,255,255,.82); box-shadow: 0 12px 34px rgba(76,91,125,.07);
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}
.work-card:hover { transform: translateY(-4px); border-color: rgba(95,134,207,.38); box-shadow: 0 18px 38px rgba(76,91,125,.13); }
.work-card--recommendation { border-color: rgba(185,168,230,.28); }
.work-card__link { display: block; height: 100%; text-decoration: none; }
.work-card__image-wrap { position: relative; aspect-ratio: 16/9; overflow: hidden; background: linear-gradient(135deg, rgba(143,181,236,.24), rgba(239,180,193,.18)); }
.work-card__image { position: relative; z-index: 1; width: 100%; height: 100%; object-fit: cover; transition: transform 260ms ease, filter 260ms ease; }
.work-card:hover .work-card__image { transform: scale(1.025); filter: saturate(.92) brightness(1.03); }
.work-card__image-fallback { position: absolute; inset: 0; display: grid; place-items: center; color: #8090aa; font-size: .7rem; letter-spacing: .12em; }
.work-card__body { padding: .9rem; }
.work-card__year, .work-card__meta, .work-card__reason { margin: 0; color: var(--muted); font-size: .72rem; }
.work-card__title { margin: .42rem 0 .65rem; color: #2d4367; font-size: .96rem; line-height: 1.5; letter-spacing: -.015em; }
.work-card__tags { margin-bottom: .65rem; gap: .32rem; }
.work-card__tags:not([hidden]) { display: flex; align-items: center; padding: .48rem; border: 1px solid rgba(143,181,236,.22); border-radius: 12px; background: linear-gradient(135deg, rgba(143,181,236,.10), rgba(185,168,230,.08)); }
.work-card__tags:not([hidden])::before { content: "TAGS"; flex: 0 0 auto; margin-right: .12rem; color: var(--blue-strong); font-size: .58rem; font-weight: 900; letter-spacing: .1em; }
.work-card__tags span { max-width: 100%; padding: .25rem .45rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: .65rem; border-color: rgba(95,134,207,.2); color: #496994; background: rgba(143,181,236,.14); }
.work-card__meta { font-weight: 700; color: #65728a; }
.work-card__reason { margin-top: .45rem; color: #667fb0; line-height: 1.45; }
.state-card { padding: 2rem; border-radius: var(--radius); text-align: center; color: var(--muted); }
.state-card--error { color: var(--danger); }
[hidden] { display: none !important; }

.footer { display: flex; justify-content: space-between; gap: 1rem; padding: 1.5rem 0 3rem; border-top: 1px solid var(--line); color: var(--muted); font-size: .8rem; }
.footer p { margin: 0; }
.footer a { text-decoration: none; color: var(--blue-strong); }

@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; } }
@media (max-width:1240px) { .recommendation-grid { grid-template-columns: repeat(3,minmax(0,1fr)); } }
@media (max-width:1120px) { .work-grid { grid-template-columns: repeat(4,minmax(0,1fr)); } }
@media (max-width:850px) {
  .hero__inner { align-items: flex-start; flex-direction: column; padding-top: 3rem; }
  .summary { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .control-grid { grid-template-columns: 1fr 1fr; }
  .field--search { grid-column: 1/-1; grid-row: 1; }
  .work-grid { grid-template-columns: repeat(3,minmax(0,1fr)); }
}
@media (max-width:620px) {
  .hero__inner, .shell, .footer { width: min(100% - 1.2rem,1400px); }
  .hero__inner { padding-block: 2.4rem; }
  .summary { gap: .6rem; }
  .metric { min-height: 100px; padding: .9rem; }
  .control-panel, .recommendations { padding: .85rem; }
  .control-grid { grid-template-columns: 1fr; }
  .field--search { grid-column: auto; grid-row: auto; }
  .preference-box, .recommendations__head { align-items: flex-start; flex-direction: column; }
  .catalogue-head { align-items: flex-start; flex-direction: column; margin-top: 2.5rem; }
  .recommendation-grid, .work-grid { grid-template-columns: repeat(2,minmax(0,1fr)); gap: .65rem; }
  .work-card__body { padding: .72rem; }
  .work-card__title { font-size: .86rem; }
  .footer { flex-direction: column; }
}
@media (max-width:390px) { .recommendation-grid, .work-grid { grid-template-columns: 1fr; } }