@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+JP:wght@400;500;600&family=Cormorant+Garamond:wght@400;500&display=swap');

:root {
  --color-base: #0F1525;
  --color-surface: #1A1A1F;
  --color-text-primary: #E8E6E0;
  --color-text-secondary: #C8C7C2;
  --color-accent-gold: #C9B16E;
  --color-divider: #3A3D44;
  --font-jp: 'Noto Serif JP', serif;
  --font-en: 'Cormorant Garamond', serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  background: var(--color-base);
  color: var(--color-text-primary);
  font-family: var(--font-jp);
  line-height: 1.7;
  padding: 24px 20px 48px;
  letter-spacing: 0.04em;
}

.header { text-align: center; padding-bottom: 24px; }
.brand {
  font-family: var(--font-en);
  font-size: 28px;
  letter-spacing: 0.15em;
  margin-top: 8px;
}
.gold-rule {
  width: 80px;
  height: 1px;
  background: var(--color-accent-gold);
  margin: 16px auto;
  border: 0;
}
.header h1 {
  font-size: 18px;
  font-weight: 500;
  letter-spacing: 0.08em;
  margin: 4px 0 6px;
}
.header .sub { font-size: 13px; color: var(--color-text-secondary); }

form {
  display: flex;
  flex-direction: column;
  gap: 20px;
  border-top: 1px solid var(--color-divider);
  padding-top: 24px;
}

label, fieldset { border: 0; }
.label {
  display: block;
  font-size: 13px;
  color: var(--color-accent-gold);
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

input[type="text"],
input[type="date"],
select {
  width: 100%;
  background: var(--color-surface);
  color: var(--color-text-primary);
  border: 1px solid var(--color-divider);
  border-radius: 4px;
  padding: 12px 14px;
  font-size: 16px;
  font-family: var(--font-jp);
  letter-spacing: 0.04em;
}
input:focus, select:focus { outline: 1px solid var(--color-accent-gold); }

.radio-group {
  display: flex;
  gap: 12px;
}
.radio {
  flex: 1;
  position: relative;
  cursor: pointer;
}
.radio input { position: absolute; opacity: 0; pointer-events: none; }
.radio span {
  display: block;
  text-align: center;
  padding: 12px 0;
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: 4px;
  font-family: var(--font-en);
  font-size: 18px;
  letter-spacing: 0.15em;
}
.radio input:checked + span {
  border-color: var(--color-accent-gold);
  color: var(--color-accent-gold);
  background: rgba(201, 177, 110, 0.08);
}

.check {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}
.check input { margin-top: 4px; }
.check a { color: var(--color-accent-gold); }

button[type="submit"] {
  width: 100%;
  background: var(--color-accent-gold);
  color: var(--color-base);
  border: 0;
  padding: 16px;
  font-size: 16px;
  font-family: var(--font-jp);
  font-weight: 500;
  letter-spacing: 0.12em;
  border-radius: 999px;
  cursor: pointer;
}
button[type="submit"]:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.legal-note {
  font-size: 11px;
  color: var(--color-text-secondary);
  text-align: center;
  margin-top: 8px;
  letter-spacing: 0.04em;
}