:root {
  --ink: #1a2238;        /* 紺 */
  --gold: #f8b500;       /* 山吹 */
  --paper: #faf6ef;      /* 生成り */
  --green: #2e5339;
  --red: #b3402a;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: Georgia, "Times New Roman", "Hiragino Mincho ProN", serif;
  line-height: 1.6;
}
.wrap { max-width: 480px; margin: 0 auto; padding: 24px 16px 48px; }
.hero { text-align: center; padding: 24px 0 20px; }
.brand {
  font-size: 12px; letter-spacing: 0.35em; color: var(--green);
  font-family: Helvetica, Arial, sans-serif; font-weight: 700;
}
h1 { font-size: 28px; line-height: 1.3; margin: 10px 0 12px; }
.sub { font-size: 14px; color: #4a5165; }
.card {
  background: #fff; border: 1px solid #e6dfd2; border-radius: 12px;
  padding: 20px; margin: 16px 0; box-shadow: 0 2px 10px rgba(26,34,56,0.06);
}
.form label {
  display: block; font-size: 12px; letter-spacing: 0.12em; margin: 12px 0 4px;
  font-family: Helvetica, Arial, sans-serif; color: var(--green); font-weight: 700;
}
.form input {
  width: 100%; font-size: 18px; padding: 12px; border: 1px solid #cfc6b4;
  border-radius: 8px; background: var(--paper); color: var(--ink);
}
button {
  width: 100%; margin-top: 18px; padding: 14px; font-size: 17px;
  background: var(--ink); color: var(--gold); border: none; border-radius: 10px;
  font-family: Georgia, serif; cursor: pointer;
}
button:active { transform: translateY(1px); }
button.ghost { background: transparent; color: var(--ink); border: 1px solid var(--ink); }
.actions { display: flex; gap: 10px; }
.actions button { margin-top: 12px; }
.err { color: var(--red); margin-top: 10px; font-size: 14px; }
.hint { font-size: 12px; color: #8a8272; margin-top: 5px; }
.cardBox { display: flex; justify-content: center; margin-top: 16px; }
.cardBox svg { width: 100%; max-width: 340px; height: auto; border-radius: 10px;
  box-shadow: 0 6px 24px rgba(26,34,56,0.25); }
.meanings ul { list-style: none; }
.meanings li { display: flex; align-items: baseline; gap: 12px; padding: 8px 0;
  border-bottom: 1px dashed #e6dfd2; }
.meanings li:last-child { border-bottom: none; }
.meanings .k { font-size: 30px; font-family: "Hiragino Mincho ProN", "Yu Mincho", serif; }
.meanings .m { font-size: 14px; color: #4a5165; }
.readingBox h3 {
  font-size: 12px; letter-spacing: 0.15em; color: var(--green);
  font-family: Helvetica, Arial, sans-serif; margin: 14px 0 4px; text-transform: uppercase;
}
.readingBox p { font-size: 15px; white-space: pre-line; }
h2 { font-size: 16px; letter-spacing: 0.06em; border-bottom: 2px solid var(--gold);
  padding-bottom: 6px; }
footer { text-align: center; font-size: 12px; color: #8a8272; margin-top: 32px; }
@media (min-width: 768px) { h1 { font-size: 34px; } }

/* full reading CTA */
.fullReading { border: 2px solid var(--gold); }
.frLabel { font-size: 11px; letter-spacing: 0.3em; color: var(--red);
  font-family: Helvetica, Arial, sans-serif; font-weight: 700; margin-bottom: 6px; }
.fullReading h2 { border-bottom: none; font-size: 20px; padding-bottom: 0; }
.frIntro { font-size: 14px; color: #4a5165; margin: 8px 0 12px; }
.frChapters { list-style: none; margin: 0 0 12px; }
.frChapters li { padding: 7px 0; border-bottom: 1px dashed #e6dfd2; font-size: 14px; }
.frChapters li:last-child { border-bottom: none; }
.frSample { font-size: 13px; color: #8a8272; background: var(--paper);
  border-radius: 8px; padding: 12px; margin-bottom: 12px; font-style: italic; }
.frTerms { text-align: center; font-size: 14px; margin-bottom: 4px; }
#leadForm input { width: 100%; font-size: 16px; padding: 12px; margin-top: 10px;
  border: 1px solid #cfc6b4; border-radius: 8px; background: var(--paper); color: var(--ink); }
#reserve { background: var(--red); color: #fff; }
.frDone { font-size: 14px; color: var(--green); margin-top: 12px; }

/* language switch */
.langSwitch { display: flex; justify-content: flex-end; gap: 6px; padding-top: 4px; }
.langSwitch button { width: auto; margin: 0; padding: 6px 12px; font-size: 13px;
  background: transparent; color: var(--ink); border: 1px solid #cfc6b4; border-radius: 8px;
  font-family: Helvetica, Arial, sans-serif; }
.langSwitch button.on { background: var(--ink); color: var(--gold); border-color: var(--ink); }