/* =============================================
   天鈿女の神縁鑑定 - Form Stylesheet
============================================= */

/* ----- Form page body ----- */
body.form-page {
  background: var(--color-bg);
}

/* ----- Form header ----- */
.form-header .header-inner {
  justify-content: space-between;
}

.form-header .logo-area a {
  display: flex;
  flex-direction: column;
}

.back-link {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  color: var(--color-ink-light);
  letter-spacing: 0.05em;
  transition: var(--transition);
}

.back-link:hover {
  color: var(--color-gold);
}

/* =============================================
   FORM HERO
============================================= */
.form-main {
  padding-top: 72px; /* header offset */
}

.form-hero {
  background: var(--color-navy);
  padding: 5rem 2rem 4rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.form-hero::before {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 500px; height: 400px;
  background: radial-gradient(ellipse, rgba(184,151,90,0.1) 0%, transparent 70%);
  pointer-events: none;
}

.form-hero-inner {
  max-width: 700px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.form-hero-label {
  font-family: var(--font-sans);
  font-size: 0.65rem;
  letter-spacing: 0.3em;
  color: var(--color-gold);
  text-transform: uppercase;
  margin-bottom: 1.2rem;
}

.form-hero-title {
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 300;
  color: var(--color-white);
  letter-spacing: 0.1em;
  line-height: 1.9;
  margin-bottom: 2.5rem;
}

.form-caution-box {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(184, 151, 90, 0.25);
  padding: 2rem 2.5rem;
  text-align: left;
}

.form-caution-box p {
  font-family: var(--font-serif);
  font-size: 0.88rem;
  color: rgba(253, 250, 244, 0.75);
  letter-spacing: 0.04em;
  line-height: 2.2;
  margin-bottom: 0.8rem;
}

.form-caution-box p:last-child {
  margin-bottom: 0;
}

.form-caution-note {
  font-size: 0.8rem !important;
  color: rgba(253, 250, 244, 0.5) !important;
  border-top: 1px solid rgba(184, 151, 90, 0.15);
  padding-top: 1rem;
  margin-top: 1rem;
}

/* =============================================
   FORM BODY
============================================= */
.form-body-section {
  padding: 4rem 2rem;
}

.form-container {
  max-width: 720px;
  margin: 0 auto;
}

/* ----- Fieldset ----- */
.form-fieldset {
  border: none;
  padding: 0;
  margin: 0 0 3rem;
}

.form-legend {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--color-navy);
  letter-spacing: 0.08em;
  margin-bottom: 2rem;
  padding-bottom: 0.8rem;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 0.8rem;
  width: 100%;
}

.legend-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: var(--color-navy);
  color: var(--color-gold-light);
  font-family: var(--font-sans);
  font-size: 0.75rem;
  flex-shrink: 0;
}

.legend-note {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  color: var(--color-ink-light);
  font-weight: 400;
  letter-spacing: 0.03em;
}

.form-fieldset-business {
  border: 1px solid rgba(184, 151, 90, 0.25);
  background: rgba(184, 151, 90, 0.03);
  padding: 2rem;
  margin-bottom: 3rem;
}

.form-fieldset-agreement {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  padding: 2rem;
}

/* ----- Form groups ----- */
.form-group {
  margin-bottom: 1.8rem;
}

.form-group:last-child {
  margin-bottom: 0;
}

.form-group-half {
  max-width: 360px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 1.8rem;
}

/* ----- Labels ----- */
.form-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-serif);
  font-size: 0.9rem;
  color: var(--color-navy);
  letter-spacing: 0.05em;
  margin-bottom: 0.6rem;
  line-height: 1.6;
  flex-wrap: wrap;
}

.required-badge {
  font-family: var(--font-sans);
  font-size: 0.6rem;
  letter-spacing: 0.05em;
  color: #fff;
  background: var(--color-navy);
  padding: 2px 6px;
  white-space: nowrap;
}

.optional-badge {
  font-family: var(--font-sans);
  font-size: 0.6rem;
  letter-spacing: 0.05em;
  color: var(--color-ink-light);
  background: var(--color-border);
  padding: 2px 6px;
  white-space: nowrap;
}

/* ----- Inputs ----- */
.form-input,
.form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-serif);
  font-size: 0.9rem;
  color: var(--color-ink);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  outline: none;
  transition: border-color var(--transition);
  appearance: none;
  -webkit-appearance: none;
  line-height: 1.8;
}

.form-input:focus,
.form-textarea:focus {
  border-color: var(--color-gold);
  box-shadow: 0 0 0 3px rgba(184, 151, 90, 0.1);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-ink-light);
  font-size: 0.85rem;
}

.form-input.error,
.form-textarea.error {
  border-color: #c0392b;
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

/* ----- Hints & Errors ----- */
.form-hint {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  color: var(--color-ink-light);
  letter-spacing: 0.03em;
  margin-top: 0.4rem;
  line-height: 1.8;
}

.form-error {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  color: #c0392b;
  letter-spacing: 0.03em;
  margin-top: 0.4rem;
  min-height: 1.2em;
  line-height: 1.8;
}

.agree-error {
  margin-top: 1rem;
}

/* ----- Radio ----- */
.form-radio-group {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.form-radio-wrap {
  flex-direction: row;
  flex-wrap: wrap;
  gap: 0.6rem 1.5rem;
}

.form-radio-stack {
  gap: 0.8rem;
}

.form-radio-label {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
  cursor: pointer;
  font-family: var(--font-serif);
  font-size: 0.88rem;
  color: var(--color-ink);
  letter-spacing: 0.03em;
  line-height: 1.7;
  transition: color var(--transition);
}

.form-radio-label:hover {
  color: var(--color-navy);
}

.form-radio-label input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.radio-custom {
  display: inline-block;
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  background: var(--color-white);
  position: relative;
  margin-top: 2px;
  transition: border-color var(--transition);
}

.form-radio-label:hover .radio-custom {
  border-color: var(--color-gold);
}

.form-radio-label input[type="radio"]:checked + .radio-custom {
  border-color: var(--color-gold);
  background: var(--color-gold);
}

.form-radio-label input[type="radio"]:checked + .radio-custom::after {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 6px; height: 6px;
  background: #fff;
  border-radius: 50%;
}

/* Radio Card（メニュー選択用） */
.form-radio-card {
  padding: 1rem 1.2rem;
  border: 1px solid var(--color-border);
  background: var(--color-white);
  align-items: center;
  transition: border-color var(--transition), background var(--transition);
}

.form-radio-card:hover {
  border-color: var(--color-gold);
  background: var(--color-gold-pale);
}

.form-radio-card input[type="radio"]:checked ~ span {
  color: var(--color-navy);
}

.form-radio-card:has(input:checked) {
  border-color: var(--color-gold);
  background: var(--color-gold-pale);
}

.form-radio-card span {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.form-radio-card strong {
  font-family: var(--font-serif);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-navy);
  letter-spacing: 0.03em;
}

.form-radio-card small {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  color: var(--color-ink-light);
  letter-spacing: 0.03em;
}

/* ----- Checkbox ----- */
.form-checkbox-group {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.6rem;
}

.form-checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  cursor: pointer;
  font-family: var(--font-serif);
  font-size: 0.85rem;
  color: var(--color-ink);
  letter-spacing: 0.03em;
  line-height: 1.6;
  transition: color var(--transition);
  padding: 0.5rem 0.8rem;
  border: 1px solid var(--color-border);
  background: var(--color-white);
}

.form-checkbox-label:hover {
  border-color: var(--color-gold);
  color: var(--color-navy);
}

.form-checkbox-label input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.checkbox-custom {
  display: inline-block;
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  border: 1px solid var(--color-border);
  background: var(--color-white);
  position: relative;
  transition: border-color var(--transition), background var(--transition);
}

.form-checkbox-label:hover .checkbox-custom {
  border-color: var(--color-gold);
}

.form-checkbox-label input:checked + .checkbox-custom {
  border-color: var(--color-gold);
  background: var(--color-gold);
}

.form-checkbox-label input:checked + .checkbox-custom::after {
  content: '';
  position: absolute;
  top: 2px; left: 4px;
  width: 5px; height: 8px;
  border-right: 1.5px solid #fff;
  border-bottom: 1.5px solid #fff;
  transform: rotate(40deg);
}

.form-checkbox-label:has(input:checked) {
  border-color: var(--color-gold);
  background: var(--color-gold-pale);
}

/* ----- Agreement ----- */
.agreement-lead {
  font-family: var(--font-serif);
  font-size: 0.88rem;
  color: var(--color-ink-mid);
  letter-spacing: 0.04em;
  margin-bottom: 1.5rem;
}

.form-agreement-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.form-agreement-item {
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
  cursor: pointer;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition);
}

.form-agreement-item:last-child {
  border-bottom: none;
}

.form-agreement-item:hover {
  background: rgba(184, 151, 90, 0.03);
}

.form-agreement-item input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.form-agreement-item .checkbox-custom {
  margin-top: 3px;
}

.agreement-text {
  font-family: var(--font-serif);
  font-size: 0.85rem;
  color: var(--color-ink);
  letter-spacing: 0.03em;
  line-height: 1.8;
}

/* ----- Submit Area ----- */
.form-submit-area {
  text-align: center;
  margin-top: 3rem;
}

.form-submit-note {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  color: var(--color-ink-light);
  letter-spacing: 0.03em;
  line-height: 2;
  margin-bottom: 1.5rem;
}

.btn-submit {
  min-width: 280px;
  padding: 1.2rem 3rem;
  font-size: 1rem;
}

.btn-submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

.form-submit-caution {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  color: var(--color-ink-light);
  letter-spacing: 0.03em;
  margin-top: 1rem;
}

/* =============================================
   SUCCESS MESSAGE
============================================= */
.form-success {
  text-align: center;
  padding: 5rem 2rem;
  max-width: 600px;
  margin: 0 auto;
}

.success-inner {
  padding: 3rem 2.5rem;
  background: var(--color-white);
  border: 1px solid var(--color-border);
}

.success-icon {
  font-size: 2.5rem;
  color: var(--color-gold);
  margin-bottom: 1.5rem;
  animation: goldPulse 2s ease-in-out infinite;
}

@keyframes goldPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.success-title {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--color-navy);
  letter-spacing: 0.08em;
  margin-bottom: 2rem;
}

.success-body p {
  font-family: var(--font-serif);
  font-size: 0.9rem;
  color: var(--color-ink-mid);
  letter-spacing: 0.04em;
  line-height: 2.2;
  margin-bottom: 1rem;
}

.success-note {
  font-family: var(--font-sans) !important;
  font-size: 0.78rem !important;
  color: var(--color-ink-light) !important;
  border-top: 1px solid var(--color-border);
  padding-top: 1rem;
  margin-top: 1rem;
  margin-bottom: 2rem !important;
}

/* =============================================
   Form Footer
============================================= */
.form-footer {
  margin-top: 0;
}

/* =============================================
   RESPONSIVE
============================================= */
@media (max-width: 768px) {
  .form-body-section {
    padding: 2.5rem 1.5rem;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .form-group-half {
    max-width: 100%;
  }

  .form-checkbox-group {
    grid-template-columns: 1fr 1fr;
  }

  .form-hero {
    padding: 4rem 1.5rem 3rem;
  }

  .form-caution-box {
    padding: 1.5rem;
  }

  .form-fieldset-business {
    padding: 1.5rem;
  }

  .form-fieldset-agreement {
    padding: 1.5rem;
  }

  .btn-submit {
    min-width: 0;
    width: 100%;
  }
}

@media (max-width: 480px) {
  .form-checkbox-group {
    grid-template-columns: 1fr;
  }

  .form-radio-wrap {
    flex-direction: column;
  }
}