/* ===== 디자인 토큰 =====
   컨셉: "내 집이 매달 월급 주는 통장이 된다"
   — 새마을금고/우체국 통장 커버의 짙은 초록 + 금박 느낌을 가져와
   50~70대 독자에게 익숙한 신뢰감 있는 정서를 준다.
*/
:root {
  --color-bg: #f4ecd8;
  --color-card: #fffdf8;
  --color-ink: #2b2620;
  --color-ink-soft: #6b6152;
  --color-primary: #1f4b3f;
  --color-primary-dark: #163a30;
  --color-primary-light: #2f6b57;
  --color-gold: #a97a1e;
  --color-gold-soft: #e8d9b0;
  --color-stamp: #a63a2e;
  --color-line: #d8cbb3;

  --font-display: "Gowun Batang", serif;
  --font-body: "Pretendard", -apple-system, BlinkMacSystemFont, "Malgun Gothic", sans-serif;
  --font-mono: "Space Mono", "Pretendard", monospace;

  --radius: 18px;
  --shadow-card: 0 10px 30px rgba(31, 75, 63, 0.12);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-body);
}

.page {
  max-width: 480px;
  margin: 0 auto;
  padding: 28px 20px 60px;
}

/* ===== 헤더 ===== */
.masthead {
  text-align: center;
  margin-bottom: 22px;
}
.eyebrow {
  margin: 0 0 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-gold);
  letter-spacing: 0.02em;
}
.masthead h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 26px;
  line-height: 1.4;
  color: var(--color-primary-dark);
}

/* ===== 카드 공통 ===== */
.card {
  position: relative;
  background: var(--color-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: 28px 22px 24px;
  margin-bottom: 22px;
}

/* 통장 커버 카드: 짙은 초록 + 절취선 느낌 */
.cover-card {
  border: 1px solid rgba(31, 75, 63, 0.08);
}
.cover-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 22px;
  right: 22px;
  height: 6px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-gold), var(--color-primary));
  border-radius: 0 0 3px 3px;
}

/* 결과 카드: 통장 내지 + 절취선(펀치홀) */
.ledger-card {
  padding-top: 34px;
}
.ledger-card::before {
  content: "";
  position: absolute;
  top: -9px;
  left: 0;
  right: 0;
  height: 18px;
  background-image: radial-gradient(circle at center, var(--color-bg) 6px, transparent 7px);
  background-size: 28px 18px;
  background-repeat: repeat-x;
  background-position: center;
}

/* ===== 입력 필드 ===== */
.field {
  margin-bottom: 20px;
}
.field:last-of-type {
  margin-bottom: 0;
}
.field label,
.field-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-ink-soft);
  margin-bottom: 8px;
}
.field-label-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 8px;
}
.field-label-row label { margin-bottom: 0; }

.input-row {
  display: flex;
  align-items: center;
  gap: 10px;
}
.input-row input[type="number"] {
  flex: 1;
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  color: var(--color-ink);
  border: 2px solid var(--color-line);
  border-radius: 12px;
  padding: 10px 14px;
  background: #fff;
  width: 100%;
  min-width: 0;
}
.input-row input[type="number"]:focus {
  outline: 3px solid var(--color-gold-soft);
  border-color: var(--color-gold);
}
.unit {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-ink-soft);
  white-space: nowrap;
}

.price-readout {
  font-size: 15px;
  color: var(--color-primary-dark);
}
.price-readout strong {
  font-family: var(--font-mono);
  font-size: 20px;
}

input[type="range"] {
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: var(--color-line);
  appearance: none;
  -webkit-appearance: none;
}
input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  -webkit-appearance: none;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 3px solid #fff;
  box-shadow: 0 2px 6px rgba(31, 75, 63, 0.35);
  cursor: pointer;
}
input[type="range"]::-moz-range-thumb {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 3px solid #fff;
  box-shadow: 0 2px 6px rgba(31, 75, 63, 0.35);
  cursor: pointer;
}
.price-marks {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--color-ink-soft);
  margin-top: 6px;
}

/* 토글 버튼(있음/없음 등) */
.toggle-group {
  display: flex;
  gap: 8px;
}
.toggle-btn {
  flex: 1;
  padding: 12px 10px;
  border-radius: 12px;
  border: 2px solid var(--color-line);
  background: #fff;
  color: var(--color-ink-soft);
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font-body);
  cursor: pointer;
}
.toggle-btn.is-active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

/* 고급 옵션(노인복지주택) */
.advanced-toggle {
  margin-bottom: 20px;
}
.advanced-toggle summary {
  font-size: 13px;
  color: var(--color-ink-soft);
  cursor: pointer;
  margin-bottom: 10px;
}
.advanced-toggle[open] summary { margin-bottom: 10px; }

/* 계산 버튼 */
.primary-btn {
  width: 100%;
  padding: 16px;
  border: none;
  border-radius: 14px;
  background: var(--color-primary);
  color: #fff;
  font-size: 17px;
  font-weight: 700;
  font-family: var(--font-body);
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease;
}
.primary-btn:hover { background: var(--color-primary-light); }
.primary-btn:active { transform: scale(0.98); }

/* ===== 결과 영역 ===== */
.stamp-row {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}
.stamp {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 84px;
  height: 84px;
  border-radius: 50%;
  border: 3px solid var(--color-stamp);
  color: var(--color-stamp);
  font-weight: 700;
  font-size: 14px;
  text-align: center;
  line-height: 1.3;
  transform: rotate(-8deg);
  flex-shrink: 0;
  animation: stamp-press 0.35s ease-out;
}
.stamp.is-ineligible {
  border-color: var(--color-ink-soft);
  color: var(--color-ink-soft);
}
@keyframes stamp-press {
  0% { transform: rotate(-8deg) scale(1.6); opacity: 0; }
  60% { transform: rotate(-8deg) scale(0.95); opacity: 1; }
  100% { transform: rotate(-8deg) scale(1); }
}
@media (prefers-reduced-motion: reduce) {
  .stamp { animation: none; }
}
.stamp-reason {
  margin: 0;
  font-size: 13px;
  color: var(--color-ink-soft);
  line-height: 1.5;
}

.ledger-caption {
  margin: 0;
  font-size: 14px;
  color: var(--color-ink-soft);
}
.hero-amount {
  margin: 4px 0 6px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 44px;
  color: var(--color-primary-dark);
  letter-spacing: -0.01em;
}
.hero-amount .won {
  font-size: 20px;
  font-weight: 700;
  margin-left: 4px;
  color: var(--color-ink-soft);
  font-family: var(--font-body);
}
.ledger-sub {
  margin: 0 0 10px;
  font-size: 13px;
  color: var(--color-gold);
  font-weight: 600;
}

.loading-note, .error-note {
  font-size: 13px;
  padding: 10px 12px;
  border-radius: 10px;
  margin: 10px 0;
}
.loading-note {
  background: var(--color-gold-soft);
  color: var(--color-primary-dark);
}
.error-note {
  background: #fbe4e1;
  color: var(--color-stamp);
}

/* 펼치기 패널 */
.option-panel {
  border-top: 1px dashed var(--color-line);
  padding-top: 16px;
  margin-top: 16px;
}
.option-panel summary {
  cursor: pointer;
  font-weight: 700;
  font-size: 15px;
  color: var(--color-primary-dark);
  margin-bottom: 4px;
}
.option-panel[open] summary {
  margin-bottom: 16px;
}

.select-input {
  width: 100%;
  padding: 12px 14px;
  border-radius: 12px;
  border: 2px solid var(--color-line);
  background: #fff;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--color-ink);
}
.select-input:focus {
  outline: 3px solid var(--color-gold-soft);
  border-color: var(--color-gold);
}

.field-hint, .option-hint {
  font-size: 12.5px;
  color: var(--color-ink-soft);
  line-height: 1.6;
  margin: 8px 0 0;
}

.total-caption {
  margin: 6px 0 2px;
  font-size: 14px;
  color: var(--color-ink-soft);
}
.total-amount {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 30px;
  color: var(--color-primary-dark);
}
.total-amount .won {
  font-size: 16px;
  margin-left: 4px;
  color: var(--color-ink-soft);
  font-family: var(--font-body);
}

/* ===== 하단 안내 ===== */
.disclaimer {
  font-size: 12px;
  line-height: 1.7;
  color: var(--color-ink-soft);
  text-align: center;
  padding: 0 8px;
}
.disclaimer a {
  color: var(--color-primary);
}

/* 포커스 접근성 */
a:focus-visible,
button:focus-visible,
summary:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 3px solid var(--color-gold);
  outline-offset: 2px;
}

@media (max-width: 360px) {
  .hero-amount { font-size: 36px; }
  .stamp { width: 72px; height: 72px; font-size: 12px; }
}