/* ==========================================================================
   문의 — 모던 + 엽서 감성 (letter accent, modern base)
   ========================================================================== */
.contact-section {
  --line: rgba(139, 111, 92, 0.14);
  --dash: rgba(139, 111, 92, 0.4);
  --seal: #8f3f38;
  --accent-soft: rgba(139, 111, 92, 0.12);

  position: relative;
  padding: 3rem 0 4.5rem;
  background:
    radial-gradient(110% 60% at 50% -8%, rgba(139, 111, 92, 0.05), transparent 58%),
    var(--cream);
}

.contact-container {
  max-width: 1000px;
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.18fr);
  gap: 2.5rem;
  align-items: start;
}

/* —— 좌측 안내 —— */
.contact-aside .contact-badge {
  display: inline-block;
  margin: 0 0 0.85rem;
  padding: 0;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--wood);
  background: none;
  border-radius: 0;
}

.contact-aside h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--wood-dark);
}

.contact-lead {
  margin: 0 0 1.6rem;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--wood);
}

.contact-office {
  position: relative;
  padding: 1.5rem 1.4rem;
  background: linear-gradient(145deg, var(--white) 0%, var(--cream) 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--wood);
}

/* 은은한 엽서 점선 프레임 */
.contact-office::before {
  content: "";
  position: absolute;
  inset: 7px;
  border: 1px dashed var(--dash);
  border-radius: calc(var(--radius) - 5px);
  pointer-events: none;
}

.contact-office > * {
  position: relative;
}

/* 모던 모노그램 배지 */
.contact-seal {
  position: absolute;
  top: -15px;
  right: 16px;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  font-size: 0.9375rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--white);
  background: var(--wood-dark);
  border-radius: 50%;
  box-shadow: 0 4px 12px rgba(74, 63, 53, 0.22);
}

.contact-office h2 {
  margin: 0 0 0.55rem;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--wood-dark);
}

.contact-office p {
  margin: 0 0 0.35rem;
}

.contact-office a {
  color: var(--seal);
  font-weight: 600;
  text-decoration: none;
}

.contact-office a:hover {
  text-decoration: underline;
}

/* —— 우측 카드 (모던 카드 + 엽서 악센트) —— */
.contact-card {
  position: relative;
  padding: 2.5rem 2.1rem 2rem;
  background:
    radial-gradient(rgba(139, 111, 92, 0.035) 1px, transparent 1px),
    linear-gradient(180deg, #fefcf8 0%, #fdf9f2 100%);
  background-size: 22px 22px, 100% 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

/* 상단 악센트 바 */
.contact-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--seal);
  z-index: 3;
}

/* 엽서 점선 프레임 */
.contact-card::after {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1.5px dashed var(--dash);
  border-radius: calc(var(--radius) - 4px);
  pointer-events: none;
  z-index: 1;
}

.contact-card > *:not(.letter-post) {
  position: relative;
  z-index: 2;
}

/* 우표 + 소인 */
.letter-post {
  position: absolute;
  top: 0;
  right: 0;
  z-index: 3;
  width: 150px;
  height: 120px;
  pointer-events: none;
}

.letter-postmark {
  position: absolute;
  top: 2.9rem;
  right: 3.3rem;
  width: 82px;
  height: 82px;
  color: var(--seal);
  opacity: 0.3;
  transform: rotate(-12deg);
}

.letter-postmark text {
  fill: currentColor;
  font-weight: 700;
}

.letter-postmark circle,
.letter-postmark line,
.letter-postmark path {
  stroke: currentColor;
}

.letter-postmark-t1 { font-size: 13px; }
.letter-postmark-t2 { font-size: 8px; letter-spacing: 0.1em; }

/* 우표 스티커 */
.letter-stamp {
  position: absolute;
  top: 1.3rem;
  right: 1.4rem;
  z-index: 4;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  width: 54px;
  height: 62px;
  padding: 6px;
  background: var(--white);
  border: 1.5px dashed rgba(139, 111, 92, 0.4);
  border-radius: 6px;
  box-shadow: 0 3px 9px rgba(74, 63, 53, 0.1);
  transform: rotate(4deg);
}

.letter-stamp-mark {
  font-size: 1.05rem;
  line-height: 1;
  color: var(--seal);
}

.letter-stamp-name {
  font-size: 0.5rem;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: 0.05em;
  text-align: center;
  color: var(--wood);
}

/* 편지 머리 */
.contact-form-head {
  margin-bottom: 1.7rem;
}

.contact-form-head h2 {
  margin: 0 0 0.4rem;
  font-size: 1.375rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--wood-dark);
}

.contact-form-head > p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--wood);
}

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

.contact-form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 1rem;
}

.contact-field {
  margin-bottom: 1.25rem;
}

.contact-label {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  margin-bottom: 0.5rem;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--wood-dark);
}

.contact-field-required .contact-label::after {
  content: "필수";
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--wood);
  padding: 0.1rem 0.4rem;
  background: var(--accent-soft);
  border-radius: 4px;
}

/* 입력 — 모던 필드 */
.contact-input-shell {
  position: relative;
  border-radius: var(--radius-sm);
  background: var(--cream);
  border: 1.5px solid var(--line);
  transition:
    border-color var(--transition),
    box-shadow var(--transition),
    background var(--transition);
}

.contact-input-shell:focus-within {
  background: var(--white);
  border-color: var(--wood);
  box-shadow:
    0 0 0 3px rgba(139, 111, 92, 0.15),
    0 8px 24px rgba(74, 63, 53, 0.06);
}

.contact-field-error .contact-input-shell {
  border-color: #d47272;
  background: #fffafa;
}

.contact-field-error .contact-input-shell:focus-within {
  box-shadow: 0 0 0 4px rgba(212, 114, 114, 0.2);
}

/* 문의 내용 — 은은한 괘선 편지지 (엽서 악센트) */
.contact-input-shell:has(.contact-textarea) {
  background: var(--white);
  overflow: hidden;
}

.contact-input,
.contact-textarea {
  display: block;
  width: 100%;
  margin: 0;
  padding: 0.6rem 1.1rem;
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 500;
  line-height: 1.5;
  color: var(--wood-dark);
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  box-shadow: none;
  appearance: none;
  -webkit-appearance: none;
}

.contact-input::placeholder,
.contact-textarea::placeholder {
  color: rgba(139, 111, 92, 0.45);
  font-weight: 400;
}

.contact-input:focus,
.contact-textarea:focus {
  outline: none;
}

.contact-textarea {
  min-height: 240px;
  resize: vertical;
  padding: 8px 16px 16px 40px;
  line-height: 30px;
  background-image:
    linear-gradient(90deg, transparent 30px, rgba(143, 63, 56, 0.28) 30px, rgba(143, 63, 56, 0.28) 31px, transparent 31px),
    repeating-linear-gradient(transparent 0 29px, rgba(139, 111, 92, 0.18) 29px 30px);
  background-attachment: local;
  background-position: 0 6px;
}

.contact-hint {
  margin: 0.4rem 0 0;
  font-size: 0.75rem;
  color: var(--wood);
  opacity: 0.85;
}

.contact-error {
  margin: 0.45rem 0 0;
  font-size: 0.8125rem;
  font-weight: 600;
  color: #b04040;
}

.contact-alert {
  margin-bottom: 1.25rem;
  padding: 0.9rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  line-height: 1.5;
}

.contact-alert-error {
  background: linear-gradient(135deg, #fff5f4 0%, #fdeeed 100%);
  color: #8b3030;
  border: 1px solid rgba(196, 92, 92, 0.22);
}

.contact-alert p {
  margin: 0;
}

/* 보내기 */
.contact-submit {
  width: 100%;
  margin-top: 0.9rem;
  padding: 1rem 1.5rem;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  border-radius: var(--radius-sm);
  box-shadow: 0 8px 22px rgba(74, 63, 53, 0.16);
  transition:
    transform var(--transition),
    box-shadow var(--transition);
}

.contact-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 26px rgba(74, 63, 53, 0.2);
}

.contact-submit:active {
  transform: translateY(0);
}

/* —— 접수 완료 —— */
.contact-success {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 2rem 1rem 1.5rem;
}

.contact-success-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3.5rem;
  height: 3.5rem;
  margin-bottom: 1rem;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--white);
  background: linear-gradient(135deg, var(--mint-deep) 0%, #7bc4ad 100%);
  border-radius: 50%;
  box-shadow: 0 8px 20px rgba(159, 212, 196, 0.45);
}

.contact-success h2 {
  margin: 0 0 0.65rem;
  font-size: 1.375rem;
  font-weight: 800;
  color: var(--wood-dark);
}

.contact-success p {
  margin: 0 0 1.5rem;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--wood);
}

.contact-success-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.6rem;
}

.contact-success-actions .btn {
  margin: 0;
  border-radius: var(--radius-sm);
}

@media (max-width: 768px) {
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .contact-form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .contact-card {
    padding: 1.75rem 1.3rem 1.4rem;
  }

  .letter-postmark {
    display: none;
  }

  .letter-stamp {
    top: 1rem;
    right: 1rem;
    transform: rotate(4deg) scale(0.9);
  }
}