/* ==========================================================================
   calculator-common.css — 계산기 페이지 공통 스타일
   css/style.css 의 CSS 변수를 활용합니다.
   Toss Design System 참고, Pretendard 기반
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. 계산기 페이지 레이아웃
   -------------------------------------------------------------------------- */

.calc-page {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  max-width: 960px;
  margin: 0 auto;
  padding: var(--space-6) 0 var(--space-12);
}

@media (min-width: 769px) {
  .calc-page {
    grid-template-columns: 1fr 380px;
    gap: var(--space-8);
  }
  .calc-page__result {
    position: sticky;
    top: 24px;
    align-self: start;
  }
}

/* --------------------------------------------------------------------------
   2. 계산기 입력 카드
   -------------------------------------------------------------------------- */

.calc-tool {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  border: 1px solid var(--color-gray-200);
}

.calc-tool__header {
  margin-bottom: var(--space-6);
}

.calc-tool__icon {
  font-size: 2.5rem;
  line-height: 1;
  margin-bottom: var(--space-3);
  display: block;
}

.calc-tool__title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-primary);
  margin: 0 0 var(--space-2);
  letter-spacing: -0.02em;
  line-height: 1.3;
}

.calc-tool__desc {
  font-size: 0.9rem;
  color: var(--color-gray-600);
  margin: 0;
  line-height: 1.6;
}

/* --- 카테고리 배지 --- */
.calc-cat {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 6px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  margin-bottom: var(--space-3);
}

.calc-cat--health  { background: #f0faf6; color: var(--cat-health); }
.calc-cat--finance { background: #e8f3ff; color: var(--cat-finance); }
.calc-cat--daily   { background: #fff3e0; color: #c76a00; }
.calc-cat--alcohol { background: #f3e8fd; color: var(--cat-alcohol); }

/* --------------------------------------------------------------------------
   3. 입력 폼 요소
   -------------------------------------------------------------------------- */

.calc-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.calc-form__group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.calc-form__label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-gray-600);
  letter-spacing: -0.01em;
}

.calc-form__input,
.calc-form__select {
  width: 100%;
  padding: 14px 16px;
  border: 1.5px solid transparent;
  border-radius: var(--radius-md);
  background: var(--color-gray-100);
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text);
  font-family: inherit;
  outline: none;
  transition: all 0.15s ease;
  -webkit-appearance: none;
}

.calc-form__input:hover,
.calc-form__select:hover {
  border-color: var(--color-gray-200);
}

.calc-form__input:focus,
.calc-form__select:focus {
  background: var(--color-white);
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(49, 130, 246, 0.12);
}

.calc-form__input::placeholder {
  color: var(--color-gray-400);
}

.calc-form__hint {
  font-size: 0.75rem;
  color: var(--color-gray-400);
  margin-top: 2px;
}

/* --- 입력 행 (가로 나열) --- */
.calc-form__row {
  display: flex;
  gap: var(--space-3);
}

.calc-form__row > .calc-form__group {
  flex: 1;
}

/* --- 성별 토글 --- */
.calc-form__toggle {
  display: flex;
  gap: 0;
  border-radius: 12px;
  overflow: hidden;
  border: 1.5px solid var(--color-gray-200);
}

.calc-form__toggle-btn {
  flex: 1;
  padding: 12px;
  border: none;
  background: var(--color-white);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-gray-600);
  cursor: pointer;
  font-family: inherit;
  transition: background 0.15s ease, color 0.15s ease;
}

.calc-form__toggle-btn + .calc-form__toggle-btn {
  border-left: 1.5px solid var(--color-gray-200);
}

.calc-form__toggle-btn[aria-pressed="true"],
.calc-form__toggle-btn.active {
  background: var(--color-primary);
  color: var(--color-white);
}

/* --- 활동량 라디오 --- */
.calc-form__radio-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.calc-form__radio {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 12px 16px;
  border: 1.5px solid var(--color-gray-200);
  border-radius: 12px;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
  font-size: 0.9rem;
  color: var(--color-text);
}

.calc-form__radio:hover {
  border-color: var(--color-gray-400);
  background: var(--color-bg);
}

.calc-form__radio.selected {
  border-color: var(--color-accent);
  background: #f0f8ff;
}

.calc-form__radio input[type="radio"] {
  display: none;
}

.calc-form__radio-dot {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid var(--color-gray-400);
  flex-shrink: 0;
  position: relative;
  transition: border-color 0.15s ease;
}

.calc-form__radio.selected .calc-form__radio-dot {
  border-color: var(--color-accent);
}

.calc-form__radio.selected .calc-form__radio-dot::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
}

/* --------------------------------------------------------------------------
   4. 계산 버튼
   -------------------------------------------------------------------------- */

.calc-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 15px 24px;
  border: none;
  border-radius: 12px;
  background: var(--color-accent);
  color: var(--color-white);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  min-height: 52px;
  font-family: inherit;
  letter-spacing: -0.01em;
  transition: background 0.15s ease, transform 0.1s ease, box-shadow 0.15s ease;
  margin-top: var(--space-2);
}

.calc-btn:hover {
  background: #2272EB;
  box-shadow: 0 4px 12px rgba(49, 130, 246, 0.25);
}

.calc-btn:active {
  transform: scale(0.98);
}

/* --------------------------------------------------------------------------
   5. 결과 카드
   -------------------------------------------------------------------------- */

.calc-result {
  display: none;
}

.calc-result.visible {
  display: block;
}

.calc-result__card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  border: 1px solid var(--color-gray-200);
}

.calc-result__label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-gray-600);
  margin-bottom: var(--space-2);
  display: block;
}

.calc-result__primary {
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-accent);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin: 0;
}

.calc-result__unit {
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--color-gray-600);
  margin-left: 4px;
}

/* --- 상태 배지 --- */
.calc-result__status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-top: var(--space-3);
}

.status--safe    { background: #e6f5f2; color: #1a7a5e; }
.status--good    { background: #e8f3ff; color: #2267b5; }
.status--caution { background: #fff3e0; color: #c76a00; }
.status--warning { background: #ffeeee; color: #c62828; }

/* --- 범위 바 (수평) --- */
.calc-range {
  margin-top: var(--space-5);
}

.calc-range__bar {
  position: relative;
  height: 10px;
  border-radius: 5px;
  overflow: hidden;
  display: flex;
}

.calc-range__segment {
  height: 100%;
}

.calc-range__indicator {
  position: absolute;
  top: -5px;
  width: 4px;
  height: 20px;
  background: var(--color-text);
  border-radius: 2px;
  transition: left 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 0 0 2px var(--color-white);
}

.calc-range__labels {
  display: flex;
  justify-content: space-between;
  margin-top: 6px;
  font-size: 0.68rem;
  color: var(--color-gray-400);
}

/* --- 분석 테이블 (연봉 등) --- */
.calc-breakdown {
  margin-top: var(--space-5);
}

.calc-breakdown__row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
}

.calc-breakdown__row + .calc-breakdown__row {
  border-top: 1px solid var(--color-gray-100);
}

.calc-breakdown__label {
  font-size: 0.875rem;
  color: var(--color-gray-600);
}

.calc-breakdown__value {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
  font-variant-numeric: tabular-nums;
}

.calc-breakdown__total {
  margin-top: var(--space-3);
  padding-top: var(--space-4);
  border-top: 2px solid var(--color-gray-200);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.calc-breakdown__total-label {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-text);
}

.calc-breakdown__total-value {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-accent);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

/* --- 보조 정보 카드 --- */
.calc-info {
  background: var(--color-bg);
  border-radius: 12px;
  padding: var(--space-4);
  margin-top: var(--space-4);
}

.calc-info__title {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-gray-600);
  margin-bottom: var(--space-2);
}

.calc-info__row {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  padding: 4px 0;
}

.calc-info__row-label { color: var(--color-gray-600); }
.calc-info__row-value { font-weight: 600; color: var(--color-text); }

/* --------------------------------------------------------------------------
   6. 관련 계산기 그리드
   -------------------------------------------------------------------------- */

.related-calcs {
  margin-top: var(--space-12);
}

.related-calcs__title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.related-calcs__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}

@media (min-width: 640px) {
  .related-calcs__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.related-calcs__card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-5) var(--space-3);
  background: var(--color-white);
  border: 1.5px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: inherit;
  text-align: center;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}

.related-calcs__card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.related-calcs__card-icon {
  font-size: 2rem;
  line-height: 1;
}

.related-calcs__card-name {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-primary);
}

.related-calcs__card-desc {
  font-size: 0.72rem;
  color: var(--color-gray-600);
  line-height: 1.4;
}

/* --------------------------------------------------------------------------
   7. 뉴스레터 CTA
   -------------------------------------------------------------------------- */

.newsletter-cta {
  background: linear-gradient(135deg, #191F28 0%, #3182F6 100%);
  border-radius: var(--radius-lg);
  padding: 24px;
  color: var(--color-white);
  text-align: center;
  margin-top: var(--space-6);
}

.newsletter-cta__title {
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 var(--space-2);
}

.newsletter-cta__desc {
  font-size: 0.8rem;
  opacity: 0.85;
  margin: 0 0 var(--space-4);
  line-height: 1.5;
}

.newsletter-cta__form {
  display: flex;
  gap: var(--space-2);
}

.newsletter-cta__input {
  flex: 1;
  padding: 12px 14px;
  border: none;
  border-radius: 10px;
  font-size: 0.875rem;
  outline: none;
  font-family: inherit;
}

.newsletter-cta__btn {
  padding: 12px 20px;
  border: none;
  border-radius: 10px;
  background: var(--color-white);
  color: var(--color-primary);
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  font-family: inherit;
  white-space: nowrap;
  transition: opacity 0.15s ease;
}

.newsletter-cta__btn:hover {
  opacity: 0.9;
}

/* --------------------------------------------------------------------------
   8. 교육 콘텐츠 영역 (계산기 페이지 내 아티클)
   -------------------------------------------------------------------------- */

.calc-article {
  padding-top: var(--space-6);
}

.calc-article h2 {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--color-primary);
  margin: var(--space-8) 0 var(--space-3);
  letter-spacing: -0.02em;
  line-height: 1.4;
}

.calc-article h2:first-child {
  margin-top: 0;
}

.calc-article h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: var(--space-6) 0 var(--space-2);
}

.calc-article p {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--color-text);
  margin: 0 0 var(--space-4);
}

.calc-article ul, .calc-article ol {
  padding-left: 1.25rem;
  margin: 0 0 var(--space-4);
}

.calc-article li {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--color-text);
  margin-bottom: var(--space-1);
}

.calc-article strong {
  font-weight: 700;
  color: var(--color-primary);
}

/* --- 수식 블록 --- */
.calc-article__formula {
  background: var(--color-bg);
  border-radius: 12px;
  padding: var(--space-4) var(--space-5);
  font-family: 'JetBrains Mono', 'Courier New', monospace;
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--color-text);
  margin: var(--space-4) 0;
  overflow-x: auto;
}

/* --- 비교 표 --- */
.calc-article__table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin: var(--space-4) 0;
  font-size: 0.85rem;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--color-gray-200);
}

.calc-article__table th {
  background: var(--color-bg);
  font-weight: 700;
  color: var(--color-primary);
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--color-gray-200);
}

.calc-article__table td {
  padding: 10px 16px;
  border-bottom: 1px solid var(--color-gray-100);
  color: var(--color-text);
}

.calc-article__table tr:last-child td {
  border-bottom: none;
}

/* --- 인라인 CTA --- */
.calc-article__cta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  background: #f0f8ff;
  border: 1.5px solid rgba(46, 134, 171, 0.2);
  border-radius: 12px;
  margin: var(--space-6) 0;
  text-decoration: none;
  color: var(--color-accent);
  font-weight: 600;
  font-size: 0.9rem;
  transition: background 0.15s ease, border-color 0.15s ease;
}

.calc-article__cta:hover {
  background: #e6f2fa;
  border-color: var(--color-accent);
}

/* --------------------------------------------------------------------------
   9. FAQ (기존 faq-item 패턴 재사용)
   -------------------------------------------------------------------------- */

.calc-faq {
  margin-top: var(--space-8);
}

.calc-faq__title {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

/* --------------------------------------------------------------------------
   10. 면책 문구
   -------------------------------------------------------------------------- */

.calc-disclaimer {
  font-size: 0.75rem;
  color: var(--color-gray-400);
  line-height: 1.6;
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-gray-100);
}

/* --------------------------------------------------------------------------
   11. 애니메이션
   -------------------------------------------------------------------------- */

@keyframes resultPop {
  0% { transform: scale(0.95); opacity: 0.5; }
  60% { transform: scale(1.02); }
  100% { transform: scale(1); opacity: 1; }
}

.calc-result--animate {
  animation: resultPop 0.3s ease-out;
}

@media (prefers-reduced-motion: reduce) {
  .calc-result--animate { animation: none; }
  .calc-range__indicator { transition: none; }
}

/* --------------------------------------------------------------------------
   12. 반응형 (모바일 조정)
   -------------------------------------------------------------------------- */

@media (max-width: 768px) {
  .calc-tool {
    padding: 24px 20px;
    border-radius: 12px;
  }

  .calc-result__card {
    padding: 24px 20px;
    border-radius: 12px;
  }

  .calc-result__primary {
    font-size: 2rem;
  }

  .related-calcs__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .newsletter-cta__form {
    flex-direction: column;
  }
}