:root {
  --black: #1a1a1a;
  --navy: #011D54;
  --navy-hover: rgba(1, 29, 84, 0.7);
  --gold: #D1AC6B;
  --red: #E74C3C;
  --green: #2ecc71;
  --bg: #f5f4ef;
  --card: #ffffff;
  --border: #e5e2d8;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "Noto Sans JP", sans-serif;
  color: var(--black);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }

.u-inner { width: 100%; max-width: 720px; margin: 0 auto; padding: 0 20px; }
.u-section { padding: 48px 0; }
.u-img { display: block; position: relative; overflow: hidden; width: 100%; }
.u-en2 { font-family: "Roboto", sans-serif; letter-spacing: 0.08em; }

/* header */
.l-header { padding: 56px 0 24px; text-align: center; border-bottom: 1px solid var(--border); background: var(--card); }
.l-header__en { color: var(--gold); font-size: 13px; margin: 0 0 8px; }
.l-header__ttl { font-size: 28px; margin: 0 0 16px; color: var(--navy); letter-spacing: 0.04em; }
.l-header__lead { font-size: 14px; margin: 0; color: var(--black); }
.l-header__lead strong { color: var(--red); font-weight: 700; }

/* mode select */
.l-select { text-align: center; }
.l-select__en { color: var(--gold); font-size: 13px; margin: 0 0 4px; }
.l-select__ttl { font-size: 22px; margin: 0 0 32px; color: var(--navy); }
.l-select__cards { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.c-mode { display: flex; flex-direction: column; align-items: center; gap: 8px; background: var(--card); border: 2px solid var(--border); border-radius: 12px; padding: 28px 20px; width: 260px; transition: .2s ease-out; transition-property: border-color, transform, box-shadow; cursor: pointer; text-align: center; }
.c-mode:hover { border-color: var(--navy); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(1,29,84,0.1); }
.c-mode__icon { font-size: 48px; line-height: 1; }
.c-mode__name { font-size: 18px; font-weight: 700; color: var(--navy); letter-spacing: 0.04em; }
.c-mode__desc { font-size: 12px; color: #666; line-height: 1.6; }

/* progress */
.c-progress { margin-bottom: 24px; }
.c-progress__bar { width: 100%; height: 6px; background: var(--border); border-radius: 999px; overflow: hidden; }
.c-progress__fill { display: block; height: 100%; background: var(--navy); transition: width .4s ease-out; width: 0%; }
.c-progress__txt { text-align: right; font-size: 12px; margin: 6px 0 0; color: var(--navy); font-family: "Roboto", sans-serif; letter-spacing: 0.05em; }

/* quiz card */
.l-quiz__card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 32px 24px; box-shadow: 0 2px 20px rgba(1, 29, 84, 0.04); }
.l-quiz__sign-area { display: flex; flex-direction: column; align-items: center; margin: 0 auto 24px; }
.l-quiz__sign { width: 180px; height: 180px; background: var(--bg); border-radius: 8px; padding: 16px; }
.l-quiz__sign img { width: 100%; height: 100%; object-fit: contain; position: static; transform: none; }
.l-quiz__supplement { margin-top: 4px; background: #fff; border: 2px solid #1a1a1a; color: #1a1a1a; font-weight: 700; padding: 6px 14px; font-size: 14px; text-align: center; min-width: 120px; letter-spacing: 0.04em; line-height: 1.3; }
.l-quiz__question { text-align: center; font-size: 16px; font-weight: 700; margin: 0 0 20px; color: var(--navy); }
.l-quiz__choices { display: flex; flex-direction: column; gap: 10px; }
.l-quiz__choice { width: 100%; text-align: left; padding: 14px 18px; background: var(--bg); border: 2px solid transparent; border-radius: 8px; font-size: 14px; transition: .2s ease-out; transition-property: background, border-color, color; }
.l-quiz__choice:hover:not(:disabled) { border-color: var(--navy); background: #fff; }
.l-quiz__choice:disabled { cursor: default; opacity: 0.85; }
.l-quiz__choice.is-correct { background: rgba(46, 204, 113, 0.12); border-color: var(--green); color: #1b7a43; font-weight: 700; }
.l-quiz__choice.is-wrong { background: rgba(231, 76, 60, 0.1); border-color: var(--red); color: #a8271a; }

/* result */
.l-quiz__result { margin-top: 24px; padding-top: 20px; border-top: 1px dashed var(--border); }
.l-quiz__result-judge { font-size: 20px; font-weight: 700; margin: 0 0 8px; text-align: center; }
.l-quiz__result-judge.is-correct { color: var(--green); }
.l-quiz__result-judge.is-wrong { color: var(--red); }
.l-quiz__result-name { font-size: 14px; font-weight: 700; margin: 0 0 8px; color: var(--navy); }
.l-quiz__result-explain { font-size: 13px; margin: 0 0 20px; color: #444; }

/* buttons */
.c-btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 14px 28px; background: var(--navy); color: #fff; border-radius: 999px; font-size: 14px; font-weight: 700; letter-spacing: 0.04em; transition: .3s ease-out; transition-property: opacity, transform; cursor: pointer; border: none; width: auto; }
.c-btn:hover { opacity: 0.8; }
.c-btn.--next { display: flex; width: 100%; }
.c-btn.--twitter { background: #000; }
.c-btn.--ghost { background: transparent; color: var(--navy); border: 2px solid var(--navy); }

/* final */
.l-quiz__final { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 40px 24px; text-align: center; }
.l-quiz__final-en { color: var(--gold); font-size: 13px; margin: 0 0 4px; }
.l-quiz__final-ttl { font-size: 24px; margin: 0 0 16px; color: var(--navy); }
.l-quiz__final-score { font-family: "Roboto", sans-serif; font-size: 48px; font-weight: 700; margin: 0 0 12px; color: var(--navy); letter-spacing: 0.02em; }
.l-quiz__final-msg { font-size: 14px; margin: 0 0 24px; color: #444; }
.l-quiz__final-btns { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* footer */
.l-footer { padding: 32px 0 48px; text-align: center; border-top: 1px solid var(--border); margin-top: 48px; }
.l-footer__txt { font-size: 12px; color: #888; margin: 0 0 4px; }
.l-footer__note { font-size: 11px; }

@media (max-width: 767px) {
  .l-header__ttl { font-size: 22px; }
  .l-quiz__sign { width: 140px; height: 140px; }
  .l-quiz__supplement { font-size: 13px; min-width: 100px; padding: 5px 10px; }
  .l-quiz__final-score { font-size: 40px; }
}