*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  --bg: #fcfaf7;
  --bg-soft: #f6f0ea;
  --white: #ffffff;
  --navy: #0d2b55;
  --navy-light: #1a3f7a;
  --gold: #c9a84c;
  --gold-light: #e8c96a;
  --text-main: #2f2a26;
  --text-sub: #5b4e46;
  --border: #e5d8cd;
  --focus: rgba(13, 43, 85, 0.18);
  --shadow: 0 18px 44px rgba(93, 74, 58, 0.08);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --danger-bg: #fff0f0;
  --danger-border: #efc2c2;
  --danger-text: #b14a4a;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Noto Sans JP", sans-serif;
  color: var(--text-main);
  background:
    radial-gradient(circle at top right, rgba(232, 201, 106, 0.08), transparent 28%),
    linear-gradient(180deg, #fffdfa 0%, #f8f4ee 100%);
  line-height: 1.8;
}

.contact-page {
  min-height: 100vh;
  padding: 56px 20px 80px;
}

.contact-page__inner {
  width: min(100%, 920px);
  margin: 0 auto;
}

.contact-page__inner--sm {
  width: min(100%, 760px);
}

.contact-page__hero {
  margin-bottom: 28px;
  text-align: center;
}

.contact-page__eyebrow {
  margin: 0 0 10px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: #8d7f74;
}

.contact-page__title {
  margin: 0;
  font-family: "Noto Serif JP", serif;
  font-size: clamp(2rem, 4.4vw, 3.2rem);
  font-weight: 600;
  line-height: 1.4;
  color: var(--text-main);
}

.contact-page__lead {
  max-width: 720px;
  margin: 18px auto 0;
  font-size: 1rem;
  color: var(--text-sub);
}

.contact-card,
.thanks-card {
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.contact-card__head {
  padding: 32px 32px 22px;
  background: linear-gradient(135deg, rgba(13, 43, 85, 0.96) 0%, rgba(26, 63, 122, 0.94) 100%);
  color: #fff;
}

.contact-card__head-title {
  margin: 0;
  font-family: "Noto Serif JP", serif;
  font-size: clamp(1.4rem, 2.8vw, 2rem);
  font-weight: 600;
  line-height: 1.5;
}

.contact-card__head-text {
  margin: 10px 0 0;
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.82);
}

.contact-form {
  padding: 34px 32px 40px;
}

.contact-form__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px 20px;
}

.contact-form__field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.contact-form__field--full {
  grid-column: 1 / -1;
}

.contact-form__label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-main);
}

.contact-form__tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 22px;
  padding: 0 8px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.04em;
}

.contact-form__tag--required {
  background: #f9e3e3;
  color: #b84c4c;
}

.contact-form__tag--optional {
  background: #edf1e8;
  color: #6f8260;
}

.contact-form__input,
.contact-form__select,
.contact-form__textarea {
  width: 100%;
  border: 1px solid #d8cbbf;
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--text-main);
  font: inherit;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.contact-form__input,
.contact-form__select {
  min-height: 54px;
  padding: 0 16px;
}

.contact-form__textarea {
  min-height: 180px;
  padding: 14px 16px;
  resize: vertical;
}

.contact-form__input:focus,
.contact-form__select:focus,
.contact-form__textarea:focus {
  outline: none;
  border-color: var(--navy);
  box-shadow: 0 0 0 4px var(--focus);
  background: #fff;
}

.contact-form__help {
  font-size: 0.82rem;
  color: #7a6f67;
  line-height: 1.7;
}

.contact-form__choice-group {
  display: grid;
  gap: 10px;
  padding: 14px 16px;
  border: 1px solid #d8cbbf;
  border-radius: var(--radius-md);
  background: #fffdfa;
}

.contact-form__choice-group--inline {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.contact-form__choice {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.95rem;
  color: var(--text-main);
  cursor: pointer;
}

.contact-form__choice input {
  margin-top: 0.25em;
  accent-color: var(--navy);
  flex-shrink: 0;
}

.contact-form__privacy {
  margin-top: 4px;
  padding: 18px 18px 16px;
  border: 1px solid #e0d6cd;
  border-radius: var(--radius-md);
  background: #fffdfa;
}

.contact-form__privacy-text {
  margin: 0 0 10px;
  font-size: 0.9rem;
  color: var(--text-sub);
}

.contact-form__privacy-link {
  color: var(--navy);
  text-decoration: underline;
  text-underline-offset: 0.16em;
}

.contact-form__actions {
  margin-top: 34px;
  text-align: center;
}

.contact-form__submit,
.thanks-card__button {
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  min-width: 280px;
  min-height: 60px;
  padding: 0 28px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-light) 100%);
  color: var(--navy);
  font: inherit;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-decoration: none;
  cursor: pointer;
  box-shadow: 0 14px 30px rgba(201, 168, 76, 0.28);
  transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
}

.contact-form__submit:hover,
.thanks-card__button:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 34px rgba(201, 168, 76, 0.34);
}

.contact-form__submit:active,
.thanks-card__button:active {
  transform: translateY(0);
}

.contact-form__note {
  margin: 14px 0 0;
  font-size: 0.82rem;
  color: #7a6f67;
}

.contact-form__error {
  margin: 0;
  font-size: 0.84rem;
  line-height: 1.6;
  color: var(--danger-text);
}

.contact-form__alert {
  margin-bottom: 20px;
  padding: 14px 16px;
  border: 1px solid var(--danger-border);
  border-radius: var(--radius-md);
  background: var(--danger-bg);
  color: var(--danger-text);
}

.contact-form__alert p {
  margin: 0;
}

.contact-form__alert p + p {
  margin-top: 6px;
}

.contact-form__honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.thanks-card {
  padding: 56px 32px;
  text-align: center;
}

.thanks-card__title {
  margin: 0;
  font-family: "Noto Serif JP", serif;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  line-height: 1.5;
  color: var(--text-main);
}

.thanks-card__text {
  margin: 18px auto 0;
  max-width: 580px;
  color: var(--text-sub);
}

.thanks-card__actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.thanks-card__button--sub {
  background: #fff;
  border: 1px solid #d9cdbf;
  box-shadow: none;
}

@media (max-width: 767px) {
  .contact-page {
    padding: 40px 16px 64px;
  }

  .contact-card__head {
    padding: 26px 20px 18px;
  }

  .contact-form,
  .thanks-card {
    padding: 26px 20px 32px;
  }

  .contact-form__grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .contact-form__choice-group--inline {
    grid-template-columns: 1fr;
  }

  .contact-form__submit,
  .thanks-card__button {
    width: 100%;
    min-width: 0;
  }
}