/* ===== CONTACT PAGE ===== */
/* design15 (Work Sans) ベース — contact.html 専用スタイル */

/* ----------------------------------------
   Contact Section
---------------------------------------- */
.contact-section { padding: 88px 0; background: var(--bg); }

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 72px;
  align-items: start;
}

/* ----------------------------------------
   Left Column — Info
---------------------------------------- */
.contact-intro {
  font-size: 0.9rem; color: var(--text-muted); font-weight: 300;
  line-height: 1.85; margin-bottom: 40px;
}
.contact-intro strong { color: var(--charcoal); font-weight: 600; }

/* Inquiry list */
.inquiry-list { margin-bottom: 44px; }
.inquiry-list .section-label { margin-bottom: 20px; }

.inquiry-item {
  display: flex; gap: 16px; align-items: flex-start;
  padding: 20px 0; border-bottom: 1px solid var(--border);
}
.inquiry-item:first-of-type { border-top: 1px solid var(--border); }

.inquiry-num {
  font-size: 1.6rem; font-weight: 200; color: var(--blue);
  opacity: 0.3; line-height: 1; flex-shrink: 0; width: 36px;
  font-variant-numeric: tabular-nums; letter-spacing: -0.04em;
}
.inquiry-item h3 {
  font-size: 0.9rem; font-weight: 600; color: var(--charcoal);
  margin-bottom: 8px; line-height: 1.4;
}
.inquiry-item h3 small {
  display: inline-block; margin-left: 8px;
  font-size: 0.72rem; font-weight: 400; color: var(--text-muted);
  letter-spacing: 0.04em;
}
.inquiry-item ul {
  list-style: none; padding: 0; margin: 0;
}
.inquiry-item ul li {
  font-size: 0.83rem; color: var(--text-muted); font-weight: 300;
  padding: 3px 0 3px 14px; position: relative; line-height: 1.7;
}
.inquiry-item ul li::before { content: "—"; position: absolute; left: 0; color: var(--blue); }
.inquiry-note {
  font-size: 0.78rem; color: #aaa; font-style: italic;
}

/* Contact details */
.contact-dl {
  display: grid; grid-template-columns: 80px 1fr;
  gap: 0;
}
.contact-dl dt {
  font-size: 0.72rem; font-weight: 600; letter-spacing: 0.08em;
  color: var(--text-muted); padding: 10px 0;
  border-bottom: 1px solid var(--border);
}
.contact-dl dd {
  font-size: 0.88rem; color: var(--charcoal); font-weight: 400;
  padding: 10px 0; border-bottom: 1px solid var(--border); margin: 0;
}
.contact-dl dd a { color: var(--blue); text-decoration: none; font-weight: 500; }
.contact-dl dd a:hover { text-decoration: underline; }
.contact-dl dt:last-of-type,
.contact-dl dd:last-of-type { border-bottom: none; }

/* ----------------------------------------
   Right Column — Form
---------------------------------------- */
.contact-form-col .contact-form {
  max-width: none;
  padding: 40px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-top: 3px solid var(--blue);
}
.contact-form h3 {
  font-size: 1rem; font-weight: 600; color: var(--charcoal);
  margin-bottom: 28px; padding-bottom: 14px; border-bottom: 1px solid var(--border);
}

/* Required / Optional badges */
.required {
  font-size: 0.62rem; font-weight: 600; letter-spacing: 0.06em;
  color: #fff; background: var(--blue);
  padding: 1px 6px; margin-left: 6px; vertical-align: middle;
}
.optional {
  font-size: 0.62rem; font-weight: 600; letter-spacing: 0.06em;
  color: var(--text-muted); background: var(--bg3);
  padding: 1px 6px; margin-left: 6px; vertical-align: middle;
}

/* optgroup styling */
.contact-form-col select optgroup { font-weight: 600; }

/* Privacy checkbox */
.form-privacy {
  margin-bottom: 20px;
}
.privacy-check {
  display: flex; align-items: center; gap: 10px; cursor: pointer;
}
.privacy-check input[type="checkbox"] {
  width: 16px; height: 16px; flex-shrink: 0; cursor: pointer;
  accent-color: var(--blue);
}
.privacy-check span {
  font-size: 0.82rem; color: var(--text-muted); font-weight: 300;
}
.privacy-check span a { color: var(--blue); text-decoration: none; }
.privacy-check span a:hover { text-decoration: underline; }

/* ----------------------------------------
   Responsive
---------------------------------------- */
@media (max-width: 900px) {
  .contact-layout { grid-template-columns: 1fr; gap: 48px; }
}
@media (max-width: 768px) {
  .contact-section { padding: 60px 0; }
  .contact-form-col .contact-form { padding: 28px 24px; }
}
@media (max-width: 480px) {
  .contact-section { padding: 48px 0; }
  .contact-dl { grid-template-columns: 72px 1fr; }
}

/* フィールドエラー */
.field-error {
  display: none;
  color: #cc3333;
  font-size: 0.8rem;
  margin-top: 6px;
}
input.error, select.error, textarea.error {
  border-color: #e74c3c;
  background: #fff8f8;
}