:root {
  --ink: #271915;
  --muted: #775f58;
  --paper: #fff8f2;
  --paper-strong: #fffdf8;
  --rose: #f5a69b;
  --rose-dark: #b9403f;
  --butter: #ffe0a1;
  --green: #1f5c4b;
  --line: rgba(39, 25, 21, 0.14);
  --shadow: 0 24px 80px rgba(112, 47, 36, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 10%, rgba(255, 224, 161, 0.9), transparent 28rem),
    radial-gradient(circle at 82% 0%, rgba(245, 166, 155, 0.8), transparent 24rem),
    linear-gradient(135deg, #fff7ef 0%, #f7d7cf 48%, #f5ead7 100%);
  font-family: "Hiragino Mincho ProN", "Yu Mincho", "YuMincho", "Noto Serif JP", serif;
  line-height: 1.75;
  overflow-x: hidden;
}

a {
  color: inherit;
}

button,
input,
textarea {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem clamp(1rem, 4vw, 4rem);
  background: rgba(255, 248, 242, 0.82);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 2.75rem;
  height: 2.75rem;
  place-items: center;
  color: #fff;
  background: var(--ink);
  border-radius: 999px;
  font-weight: 900;
  letter-spacing: -0.06em;
}

.brand strong,
.brand small {
  display: block;
  line-height: 1.1;
}

.brand small {
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
}

.top-nav {
  display: flex;
  gap: 0.5rem;
  font-size: 0.9rem;
}

.top-nav a {
  padding: 0.55rem 0.8rem;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: 999px;
}

.top-nav a:hover {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.55);
}

main {
  overflow: hidden;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, 0.75fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
  min-height: 82vh;
  padding: clamp(4rem, 8vw, 7rem) clamp(1rem, 6vw, 6rem);
}

.hero-copy,
.hero-card {
  min-width: 0;
}

.eyebrow,
.section-kicker {
  margin: 0 0 0.7rem;
  color: var(--rose-dark);
  font-family: "Hiragino Sans", "Yu Gothic", sans-serif;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 13ch;
  margin-bottom: 1.2rem;
  font-size: clamp(3.2rem, 8vw, 7.6rem);
  line-height: 0.92;
  letter-spacing: -0.08em;
}

h1 span {
  display: block;
}

h1 .title-ja {
  font-size: 0.72em;
  letter-spacing: -0.1em;
}

h1,
.lead,
.notice,
.copy-block p,
.section-heading p,
.type-card p,
.compat-card span {
  overflow-wrap: anywhere;
}

h2 {
  margin-bottom: 1rem;
  font-size: clamp(2rem, 4vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.05em;
}

.lead {
  max-width: 46rem;
  color: #533c35;
  font-size: clamp(1rem, 1.8vw, 1.24rem);
}

.hero-actions,
.result-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.7rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.72rem 1.1rem;
  border: 1px solid var(--ink);
  border-radius: 999px;
  cursor: pointer;
  text-decoration: none;
  transition:
    transform 160ms ease,
    box-shadow 160ms ease,
    background 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(39, 25, 21, 0.14);
}

.button.primary {
  color: #fff;
  background: var(--ink);
}

.button.ghost {
  background: rgba(255, 255, 255, 0.44);
}

.button.wide {
  width: 100%;
}

.notice,
.quiz-help,
.section-heading p,
.copy-block p,
.site-footer,
.sources a {
  color: var(--muted);
}

.notice {
  max-width: 43rem;
  margin: 1.2rem 0 0;
  font-family: "Hiragino Sans", "Yu Gothic", sans-serif;
  font-size: 0.86rem;
}

.hero-card {
  position: relative;
  padding: 1.1rem;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.82), rgba(255, 250, 244, 0.66)),
    repeating-linear-gradient(90deg, transparent 0 16px, rgba(39, 25, 21, 0.04) 16px 17px);
  border: 1px solid var(--line);
  border-radius: 2.2rem;
  box-shadow: var(--shadow);
}

.card-top,
.hero-stats {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-family: "Hiragino Sans", "Yu Gothic", sans-serif;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.orbit {
  position: relative;
  display: grid;
  min-height: 23rem;
  place-items: center;
  margin: 1rem 0;
  border-radius: 1.5rem;
  background:
    radial-gradient(circle, rgba(255, 224, 161, 0.9) 0 18%, transparent 18.5%),
    conic-gradient(from 12deg, #f5a69b, #ffe0a1, #89c9af, #f5a69b);
  overflow: hidden;
}

.orbit::before {
  position: absolute;
  inset: 13%;
  content: "";
  border: 1px solid rgba(39, 25, 21, 0.26);
  border-radius: 50%;
}

.orbit span {
  position: absolute;
  display: grid;
  width: 5rem;
  height: 5rem;
  place-items: center;
  color: #fff;
  background: var(--ink);
  border: 4px solid rgba(255, 255, 255, 0.64);
  border-radius: 999px;
  font-size: 2rem;
  font-weight: 900;
}

.orbit span:nth-child(1) {
  top: 1.2rem;
}

.orbit span:nth-child(2) {
  right: 1.2rem;
}

.orbit span:nth-child(3) {
  bottom: 1.2rem;
}

.orbit span:nth-child(4) {
  left: 1.2rem;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.hero-stats div {
  padding: 0.85rem;
  background: rgba(255, 255, 255, 0.62);
  border: 1px solid var(--line);
  border-radius: 1rem;
}

.hero-stats strong,
.hero-stats span {
  display: block;
}

.hero-stats strong {
  font-size: 1.1rem;
  letter-spacing: 0;
}

.hero-stats span {
  color: var(--muted);
  font-size: 0.67rem;
  letter-spacing: 0;
  text-transform: none;
}

.search-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  align-items: center;
  margin: 0 clamp(1rem, 6vw, 6rem) 1.5rem;
  padding: 0.8rem;
  background: rgba(255, 255, 255, 0.46);
  border: 1px solid var(--line);
  border-radius: 999px;
}

.search-strip span,
.search-strip a {
  padding: 0.45rem 0.8rem;
  font-family: "Hiragino Sans", "Yu Gothic", sans-serif;
  font-size: 0.82rem;
  text-decoration: none;
}

.search-strip span {
  color: #fff;
  background: var(--rose-dark);
  border-radius: 999px;
  font-weight: 800;
}

.section {
  margin: clamp(1.2rem, 4vw, 3rem) clamp(1rem, 6vw, 6rem);
  padding: clamp(2rem, 5vw, 4rem);
  background: rgba(255, 253, 248, 0.72);
  border: 1px solid var(--line);
  border-radius: clamp(1.5rem, 4vw, 3rem);
  box-shadow: var(--shadow);
}

.section.split {
  display: grid;
  grid-template-columns: minmax(180px, 0.65fr) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 4rem);
}

.copy-block {
  font-size: 1.04rem;
}

.mini-section {
  background:
    linear-gradient(160deg, rgba(255, 253, 248, 0.86), rgba(255, 224, 161, 0.42)),
    radial-gradient(circle at 94% 8%, rgba(137, 201, 175, 0.42), transparent 20rem);
}

.section-heading {
  max-width: 54rem;
  margin-bottom: 2rem;
}

.quiz {
  display: grid;
  gap: 1rem;
}

.questions {
  display: grid;
  gap: 1rem;
}

.question-card {
  display: grid;
  gap: 0.75rem;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.58);
  border: 1px solid var(--line);
  border-radius: 1.2rem;
}

.question-card legend {
  padding: 0;
  font-weight: 800;
}

.choice-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.65rem;
}

.choice-row label {
  display: flex;
  gap: 0.55rem;
  align-items: flex-start;
  min-height: 100%;
  padding: 0.9rem;
  background: rgba(255, 248, 242, 0.86);
  border: 1px solid var(--line);
  border-radius: 1rem;
  cursor: pointer;
}

.choice-row input {
  margin-top: 0.45rem;
  accent-color: var(--rose-dark);
}

.result-card {
  display: grid;
  grid-template-columns: minmax(180px, 0.38fr) minmax(0, 1fr);
  gap: clamp(1rem, 4vw, 2rem);
  align-items: center;
  margin-top: 1.3rem;
  padding: clamp(1.5rem, 4vw, 2.6rem);
  color: #fff;
  background:
    radial-gradient(circle at 16% 0%, rgba(255, 224, 161, 0.28), transparent 18rem),
    linear-gradient(135deg, #271915, #80372f);
  border-radius: 2rem;
}

.result-card[hidden] {
  display: none;
}

.result-card img {
  width: 100%;
  max-height: 24rem;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, 0.26);
  border-radius: 1.4rem;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.22);
}

.result-label {
  font-family: "Hiragino Sans", "Yu Gothic", sans-serif;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

#result-code {
  margin: 0.5rem 0 0;
  font-size: clamp(3rem, 10vw, 7rem);
  line-height: 0.9;
}

#result-name {
  color: var(--butter);
  font-size: clamp(1.3rem, 4vw, 2rem);
  font-weight: 800;
}

#result-copy {
  max-width: 46rem;
  color: rgba(255, 255, 255, 0.86);
}

.type-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.type-card {
  display: grid;
  grid-template-rows: auto 1fr;
  min-height: 24rem;
  padding: 0.7rem;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(255, 248, 242, 0.82)),
    radial-gradient(circle at 100% 0%, rgba(245, 166, 155, 0.3), transparent 8rem);
  border: 1px solid var(--line);
  border-radius: 1.45rem;
  box-shadow: 0 18px 52px rgba(112, 47, 36, 0.1);
  transition:
    transform 180ms ease,
    box-shadow 180ms ease;
}

.type-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 26px 70px rgba(112, 47, 36, 0.18);
}

.type-art {
  position: relative;
  margin: 0 0 0.9rem;
  overflow: hidden;
  background: #f6decf;
  border-radius: 1rem;
  aspect-ratio: 1 / 1;
}

.type-art::after {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(180deg, transparent 62%, rgba(39, 25, 21, 0.14));
  pointer-events: none;
}

.type-art img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.type-card-copy {
  padding: 0 0.35rem 0.45rem;
}

.type-code {
  display: inline-flex;
  margin-bottom: 0.8rem;
  padding: 0.2rem 0.55rem;
  color: #fff;
  background: var(--ink);
  border-radius: 999px;
  font-weight: 900;
  letter-spacing: 0.08em;
}

.type-card h3 {
  margin-bottom: 0.4rem;
  font-size: 1.1rem;
  line-height: 1.35;
}

.type-card p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.warm {
  background:
    linear-gradient(135deg, rgba(255, 224, 161, 0.7), rgba(255, 253, 248, 0.8)),
    radial-gradient(circle at 90% 90%, rgba(245, 166, 155, 0.5), transparent 18rem);
}

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

.compat-card {
  display: grid;
  gap: 0.3rem;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.58);
  border: 1px solid var(--line);
  border-radius: 1.1rem;
}

.compat-card span {
  color: var(--muted);
}

.share-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(280px, 1fr);
  gap: clamp(1.5rem, 4vw, 4rem);
  align-items: start;
}

.share-box {
  display: grid;
  gap: 0.8rem;
}

.share-box input,
.share-box textarea {
  width: 100%;
  padding: 0.9rem 1rem;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid var(--line);
  border-radius: 1rem;
}

.share-box textarea {
  resize: vertical;
}

.faq details {
  padding: 1rem 0;
  border-top: 1px solid var(--line);
}

.faq details:last-child {
  border-bottom: 1px solid var(--line);
}

.faq summary {
  cursor: pointer;
  font-weight: 800;
}

.faq p {
  margin: 0.8rem 0 0;
  color: var(--muted);
}

.sources {
  display: grid;
  gap: 0.7rem;
}

.sources a {
  width: fit-content;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  padding: 2rem clamp(1rem, 6vw, 6rem) 3rem;
  font-family: "Hiragino Sans", "Yu Gothic", sans-serif;
  font-size: 0.86rem;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 980px) {
  .hero,
  .section.split,
  .share-panel {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .type-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .site-header {
    position: static;
    align-items: flex-start;
  }

  .top-nav {
    display: none;
  }

  .hero {
    display: block;
    width: 100%;
    max-width: 100vw;
    padding-top: 2.2rem;
    padding-right: 1rem;
    padding-left: 1rem;
    overflow: hidden;
  }

  h1 {
    max-width: 100%;
    font-size: clamp(2.9rem, 15vw, 4.5rem);
  }

  h1 .title-ja {
    font-size: 0.6em;
    line-height: 1.02;
  }

  h1 .title-ja:last-child {
    font-size: 0.48em;
  }

  .hero-actions .button {
    flex: 1 1 100%;
    width: 100%;
  }

  .hero-card {
    width: 100%;
    max-width: 100%;
    margin-top: 2rem;
    border-radius: 1.5rem;
    overflow: hidden;
  }

  .card-top {
    flex-wrap: wrap;
    gap: 0.25rem 0.8rem;
    font-size: 0.68rem;
    letter-spacing: 0.08em;
  }

  .orbit {
    min-height: 17rem;
  }

  .orbit span {
    width: 4rem;
    height: 4rem;
    font-size: 1.55rem;
  }

  .hero-stats,
  .result-card,
  .choice-row,
  .type-grid {
    grid-template-columns: 1fr;
  }

  .search-strip {
    max-width: calc(100vw - 2rem);
    margin-right: 1rem;
    margin-left: 1rem;
    border-radius: 1.25rem;
  }

  .section {
    max-width: calc(100vw - 2rem);
    margin-right: 1rem;
    margin-left: 1rem;
    padding: 1.2rem;
    border-radius: 1.4rem;
  }
}