/* ============================================================
   DIFO — contact.css  お問い合わせページ
   共通: common.css（トークン・page-hero・.btn 等）
   ============================================================ */

.contact-body {
  background: var(--primary-bg);
  margin-top: -1px;
}

.contact-body__inner {
  max-width: 560px;
  margin: 0 auto;
}

.contact-card {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid rgba(47, 122, 182, 0.12);
  box-shadow: var(--shadow-lg);
  padding: clamp(28px, 5vw, 40px) clamp(22px, 4vw, 36px);
}

.contact-card__brand {
  text-align: center;
  margin-bottom: 20px;
}

.contact-card__logo {
  height: auto;
  max-height: 48px;
  width: auto;
  margin: 0 auto;
}

.contact-card__head {
  text-align: center;
  padding-bottom: 18px;
  margin-bottom: 18px;
  border-bottom: 2px solid var(--primary-color);
}

.contact-card__title {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3.2vw, 1.75rem);
  font-weight: 700;
  color: var(--neutral-dark);
  letter-spacing: -0.02em;
  margin: 0 0 8px;
  line-height: 1.25;
}

.contact-card__eyebrow {
  font-family: var(--font-display);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--neutral-medium);
  margin: 0;
}

.contact-card__lead {
  font-size: 0.88rem;
  color: var(--neutral-medium);
  line-height: 1.75;
  text-align: center;
  margin: 0 0 28px;
}

/* ── フォーム ── */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.contact-field {
  margin-bottom: 18px;
}

.contact-field:last-of-type {
  margin-bottom: 0;
}

.contact-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--neutral-dark);
  margin-bottom: 8px;
}

.required-mark {
  color: #c94a4a;
  margin-left: 0.2rem;
  font-weight: 700;
}

.contact-input,
.contact-textarea {
  width: 100%;
  padding: 12px 16px;
  font-size: 0.95rem;
  font-family: var(--font-body);
  color: var(--neutral-dark);
  border: 1px solid rgba(47, 122, 182, 0.22);
  border-radius: var(--radius-sm);
  background: var(--neutral-light);
  transition:
    border-color 0.2s var(--ease),
    box-shadow 0.2s var(--ease),
    background 0.2s var(--ease);
}

.contact-input::placeholder,
.contact-textarea::placeholder {
  color: rgba(90, 112, 128, 0.55);
}

.contact-input:hover,
.contact-textarea:hover {
  border-color: rgba(47, 122, 182, 0.35);
}

.contact-input:focus,
.contact-textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(47, 122, 182, 0.18);
}

.contact-textarea {
  resize: vertical;
  min-height: 140px;
  line-height: 1.65;
}

.contact-form__note {
  font-size: 0.75rem;
  color: var(--neutral-medium);
  text-align: right;
  margin: 4px 0 0;
}

.contact-form__actions {
  margin-top: 28px;
  text-align: center;
}

.contact-form .submit-btn {
  min-width: 220px;
}

.submit-btn .btn-loading {
  display: none;
}

.contact-form .submit-btn:disabled {
  opacity: 0.65;
  cursor: not-allowed;
  transform: none;
  box-shadow: 0 4px 16px rgba(47, 122, 182, 0.15);
  pointer-events: none;
}

/* ── 送信結果 ── */
.form-message {
  display: none;
  margin-top: 22px;
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  text-align: center;
  font-size: 0.88rem;
  font-weight: 500;
  line-height: 1.55;
  animation: contact-msg-in 0.35s var(--ease);
}

@keyframes contact-msg-in {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.form-message.success {
  display: block;
  background: rgba(35, 214, 201, 0.12);
  color: #1a5c56;
  border: 1px solid rgba(35, 214, 201, 0.35);
}

.form-message.error {
  display: block;
  background: rgba(201, 74, 74, 0.08);
  color: #8b2c2c;
  border: 1px solid rgba(201, 74, 74, 0.28);
}

@media (max-width: 768px) {
  .contact-form .submit-btn {
    width: 100%;
    min-width: 0;
  }

  .contact-card__lead {
    font-size: 0.84rem;
    margin-bottom: 22px;
  }

  .contact-textarea {
    min-height: 120px;
  }

  .contact-form__actions {
    margin-top: 20px;
  }
}

@media (max-width: 480px) {
  .contact-input,
  .contact-textarea {
    font-size: 0.9rem;
    padding: 11px 14px;
  }

  .contact-label {
    font-size: 0.8rem;
  }

  .contact-field {
    margin-bottom: 14px;
  }
}