:root {
  --color-background: #fdfaf5;
  --color-surface: #ffffff;
  --color-accent: #8c5e3c;
  --color-accent-soft: #f3e5d8;
  --color-text: #3b2a1a;
  --color-text-muted: #6b5a4a;
  --shadow-soft: 0 10px 30px rgba(107, 74, 51, 0.15);
  --radius-large: 24px;
  --radius-medium: 16px;
  --radius-small: 12px;
  --font-family-base: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', 'Yu Gothic',
    'Meiryo', sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-family-base);
  background: var(--color-background);
  color: var(--color-text);
  line-height: 1.7;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover,
a:focus {
  text-decoration: underline;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.container {
  width: min(960px, 92vw);
  margin: 0 auto;
}

.page-header {
  padding: 32px 0 12px;
}

.page-header__inner {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: flex-start;
}

.page-title {
  font-size: clamp(2rem, 3vw + 1rem, 2.8rem);
  margin: 0;
  letter-spacing: 0.05em;
}

.page-subtitle {
  margin: 0;
  font-size: 1rem;
  color: var(--color-text-muted);
}

.main {
  padding-bottom: 64px;
}

.section {
  padding: clamp(32px, 6vw, 64px) 0;
}

.section__header {
  margin-bottom: 32px;
}

.section__title {
  margin: 0 0 12px;
  font-size: clamp(1.5rem, 2vw + 1rem, 2.2rem);
}

.section__lead {
  margin: 0;
  color: var(--color-text-muted);
}

.profile-card {
  background: var(--color-surface);
  border-radius: var(--radius-large);
  box-shadow: var(--shadow-soft);
  padding: clamp(24px, 5vw, 48px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  position: relative;
  overflow: hidden;
}

.profile-card::after {
  content: '';
  position: absolute;
  inset: auto -80px -80px auto;
  width: 220px;
  height: 220px;
  background: radial-gradient(
    circle at center,
    rgba(140, 94, 60, 0.15),
    rgba(140, 94, 60, 0)
  );
  pointer-events: none;
}

.profile-card__visual {
  justify-self: center;
}

.profile-card__visual svg {
  width: min(240px, 60vw);
  height: auto;
}

.profile-card__text {
  display: grid;
  gap: 16px;
}

.profile-card__greeting {
  margin: 0;
  font-size: 1.25rem;
  color: var(--color-accent);
  font-weight: 600;
}

.profile-card__bio {
  margin: 0;
}

.profile-card__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.highlight-box {
  background: var(--color-accent-soft);
  border-radius: var(--radius-medium);
  padding: clamp(20px, 4vw, 32px);
  margin-top: clamp(24px, 4vw, 36px);
  display: grid;
  gap: 16px;
}

.highlight-box__title {
  margin: 0;
  font-size: 1.2rem;
  color: var(--color-accent);
}

.highlight-box__text {
  margin: 0;
}

.quiz {
  background: var(--color-surface);
  border-radius: var(--radius-large);
  box-shadow: var(--shadow-soft);
  padding: clamp(24px, 5vw, 48px);
  display: grid;
  gap: 24px;
}

.quiz fieldset {
  margin: 0;
  padding: 0;
  border: none;
}

.quiz__status {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.quiz__question {
  margin: 0;
  font-size: clamp(1.3rem, 1.5vw + 1rem, 1.6rem);
}

.quiz__options {
  display: grid;
  gap: 12px;
}

.quiz-option {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border: 2px solid transparent;
  border-radius: var(--radius-medium);
  background: #faf5ef;
  cursor: pointer;
  position: relative;
  transition: border-color 0.2s ease, transform 0.2s ease, background-color 0.2s ease,
    box-shadow 0.2s ease;
}

.quiz-option:hover,
.quiz-option:focus-within {
  border-color: var(--color-accent);
  transform: translateY(-1px);
}

.quiz-option--correct {
  background: #e2f4ea;
  border-color: #2f9d6c;
  box-shadow: 0 0 0 1px rgba(47, 157, 108, 0.2);
}

.quiz-option--incorrect {
  background: #fce4e4;
  border-color: #d16d5b;
  box-shadow: 0 0 0 1px rgba(209, 109, 91, 0.2);
}

.quiz-option--locked {
  cursor: default;
}

.quiz-option--correct::after,
.quiz-option--incorrect::after {
  position: absolute;
  right: 18px;
  font-size: 1.25rem;
  font-weight: 700;
}

.quiz-option--correct::after {
  content: '✔';
  color: #2f9d6c;
}

.quiz-option--incorrect::after {
  content: '✕';
  color: #d16d5b;
}

.quiz-option--locked:hover,
.quiz-option--locked:focus-within {
  transform: none;
}

.quiz-option input[type='radio'] {
  accent-color: var(--color-accent);
}

.quiz__submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  background: var(--color-accent);
  border: none;
  border-radius: 999px;
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.quiz__submit:disabled {
  background: #d8c5b6;
  cursor: not-allowed;
}

.quiz__submit:not(:disabled):hover,
.quiz__submit:not(:disabled):focus {
  transform: translateY(-1px);
  box-shadow: 0 12px 24px rgba(140, 94, 60, 0.25);
}

.quiz__feedback {
  min-height: 1.5em;
  font-weight: 600;
  color: var(--color-accent);
}

.quiz__feedback--correct {
  color: #2f9d6c;
}

.quiz__feedback--incorrect {
  color: #d16d5b;
}

.quiz__result {
  background: var(--color-accent-soft);
  border-radius: var(--radius-medium);
  padding: 20px;
  display: grid;
  gap: 12px;
}

.quiz__result-title {
  margin: 0;
  font-size: 1.3rem;
}

.x-feed {
  background: var(--color-surface);
  border-radius: var(--radius-large);
  box-shadow: var(--shadow-soft);
  padding: clamp(16px, 4vw, 24px);
}

.social-links {
  display: flex;
  gap: 16px;
  align-items: center;
}

.social-links__item {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.social-links__item:hover,
.social-links__item:focus {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(107, 74, 51, 0.18);
}

.social-links__item svg {
  width: 28px;
  height: 28px;
  fill: var(--color-accent);
}

.page-footer {
  padding: 36px 0 48px;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.page-footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.page-footer__links {
  display: flex;
  gap: 16px;
}

@media (min-width: 768px) {
  .profile-card {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }

  .profile-card__visual {
    order: 2;
  }
}