:root {
  --green: #3d8b5f;
  --green-dark: #2f6e4b;
  --bg: #f4f7f4;
  --card: #ffffff;
  --border: #d9e2d9;
  --text: #2b332b;
  --muted: #8a948a;
  --disabled: #cdd6cd;
  --warn: #d64545;
  --warn-bg: #fff6f6;
  --warn-border: #f0c4c4;
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  display: flex;
  justify-content: center;
  overflow: hidden;          /* 페이지 스크롤 차단 — 스크롤 주체는 .step */
}
.app {
  width: 100%;
  max-width: 480px;
  height: 100%;              /* JS가 visualViewport 높이로 덮어씀 */
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: 16px 18px 24px;
}

/* 진행 표시 */
.progress {
  flex: 0 0 auto;       /* 스크롤 영역 밖 — 항상 상단에 표시됨 */
  background: var(--bg);
  padding: 10px 0 6px;
}
.progress-bar {
  height: 6px;
  background: #e3eae3;
  border-radius: 999px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  width: 0%;
  background: var(--green);
  border-radius: 999px;
  transition: width .25s ease;
}
.progress-top {
  display: flex;
  align-items: center;
}
.progress-top .progress-bar { flex: 1; }
.btn-home {
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  margin-right: 16px;       /* 집 ↔ 진행바 */
  padding: 0;
  border-radius: 10px;
  background: #eef2ee;
  color: var(--green-dark);
}
.btn-home:hover { background: #e0e9e0; }
.progress-text {
  flex: 0 0 auto;
  min-width: 44px;            /* 1/7 → 12/12 자리수 변화에도 진행바가 출렁이지 않도록 */
  margin-left: 8px;          /* 진행바 ↔ 숫자 */
  font-size: 0.8rem;
  color: var(--muted);
  text-align: right;
}

/* 시작 화면 */
.start {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 12px 0 24px;
}
.start-title { text-align: center; font-size: 1.5rem; margin: 0; }
.start-sub { text-align: center; color: var(--muted); margin: 8px 0 24px; }
.start-btn {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 5px;
  width: 100%;
  margin-bottom: 14px;
  padding: 22px 22px;
  border: 2px solid var(--green);
  border-radius: 16px;
  background: #fff;
  cursor: pointer;
  text-align: left;
  white-space: normal;
  transition: transform .12s, box-shadow .12s;
}
.start-btn:hover { transform: translateY(-2px); box-shadow: 0 6px 16px rgba(61,139,95,.15); }
.start-btn .s-title { font-size: 1.25rem; font-weight: 700; color: var(--green-dark); }
.start-btn .s-desc { font-size: 0.9rem; font-weight: 400; color: var(--muted); }
.start-btn.primary { background: var(--green); border-color: var(--green); }
.start-btn.primary .s-title { color: #fff; }
.start-btn.primary .s-desc { color: #e7f2eb; }

/* 단계 카드 */
.step {
  flex: 1 1 auto;
  min-height: 0;               /* flex 자식이 줄어들며 내부 스크롤되도록 */
  overflow-y: auto;            /* 입력 영역만 스크롤 — 진행바는 고정 유지 */
  display: flex;
  flex-direction: column;
  justify-content: flex-start; /* 위쪽 정렬 */
  padding: 16px 0 24px;
}
.step-emoji { font-size: 2.6rem; }
.step-label {
  font-size: 1.45rem;
  font-weight: 700;
  margin: 10px 0 4px;
}
.step-hint {
  color: var(--muted);
  font-size: 0.92rem;
  margin-bottom: 20px;
}
.field {
  width: 100%;
  padding: 14px 14px;
  border: 1.5px solid var(--border);
  border-radius: 12px;
  font-size: 16px;          /* iOS 자동 확대 방지 */
  font-family: inherit;
  background: #fbfdfb;
}
.field:focus { outline: none; border-color: var(--green); }
textarea.field { resize: none; min-height: 110px; }

/* 복수 선택 옵션 (거래 방식 등) */
.choice-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 14px;
  margin-bottom: 10px;
  border: 1.5px solid var(--border);
  border-radius: 12px;
  background: #fbfdfb;
  font-size: 1.02rem;
  cursor: pointer;
  transition: border-color .15s, background .15s;
}
.choice-row input {
  width: 20px; height: 20px;
  margin: 0;
  flex: 0 0 auto;
  accent-color: var(--green);
}
.choice-row:has(input:checked) {
  border-color: var(--green);
  background: #eef6f0;
  font-weight: 600;
}

/* 주의사항 체크박스 */
.checkbox-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-top: 14px;
  padding: 12px 14px;
  border: 1.5px solid var(--border);
  border-radius: 12px;
  background: #fbfdfb;
  cursor: pointer;
}
.checkbox-row input {
  width: 20px; height: 20px;
  margin: 2px 0 0;
  flex: 0 0 auto;
  accent-color: var(--green);
}
.checkbox-row .cb-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  font-size: 0.95rem;
}
.checkbox-row .cb-label svg { flex: 0 0 auto; }
.checkbox-row .cb-desc { color: var(--muted); font-size: 0.86rem; margin-top: 3px; }

/* 경고(주의) 변형 */
.checkbox-row.warn { border-color: var(--warn-border); background: var(--warn-bg); }
.checkbox-row.warn input { accent-color: var(--warn); }
.checkbox-row.warn .cb-label { color: var(--warn); }

/* 체크 시 나타나는 추가 입력칸 */
.reveal-wrap { margin-top: 10px; }

/* 버튼 영역 */
.buttons {
  display: flex;
  gap: 10px;
  padding-top: 8px;
}
button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  border: none;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  padding: 15px 8px;
  white-space: nowrap;
}
button svg { flex: 0 0 auto; }
.btn-prev { background: #eef2ee; color: var(--text); flex: 1; }
.btn-skip {
  background: #fff;
  color: var(--green-dark);
  border: 1.5px solid var(--green);
  flex: 1;
}
.btn-skip:hover { background: #eef6f0; }
.btn-confirm { background: var(--green); color: #fff; flex: 1; }
.btn-confirm:disabled { background: var(--disabled); color: #fff; cursor: not-allowed; }
button:disabled { cursor: not-allowed; }
.btn-prev:disabled { opacity: .4; }

/* 결과 화면 */
.result { flex: 1; display: flex; flex-direction: column; padding-top: 8px; }
.result h2 { font-size: 1.3rem; margin: 4px 0 14px; }
pre#output {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-word;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  font-family: inherit;
  font-size: 0.98rem;
  margin: 0 0 14px;
}
.result .buttons { flex-wrap: wrap; }
.btn-restart { background: #eef2ee; color: var(--text); flex: 0 0 auto; min-width: 90px; }
.btn-copy { background: var(--green); color: #fff; flex: 1; }
.btn-copy:hover, .btn-confirm:not(:disabled):hover { background: var(--green-dark); }

.hidden { display: none !important; }

/* 확인 모달 */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(20, 30, 22, .45);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  z-index: 10;
}
.modal {
  width: 100%;
  max-width: 340px;
  background: var(--card);
  border-radius: 16px;
  padding: 22px 20px 18px;
  box-shadow: 0 12px 32px rgba(0,0,0,.2);
}
.modal-title { font-size: 1.15rem; font-weight: 700; margin-bottom: 8px; }
.modal-desc { color: var(--muted); font-size: 0.92rem; margin-bottom: 20px; }
.modal-buttons { display: flex; gap: 10px; }
.btn-modal-cancel { background: #eef2ee; color: var(--text); flex: 1; }
.btn-modal-cancel:hover { background: #e0e9e0; }
.btn-modal-confirm { background: var(--warn); color: #fff; flex: 1; }
.btn-modal-confirm:hover { background: #b93a3a; }

/* 복사 완료 토스트 */
.toast {
  position: fixed;
  bottom: 28px; left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--green-dark);
  color: #fff;
  padding: 11px 20px;
  border-radius: 999px;
  font-size: 0.92rem;
  opacity: 0; pointer-events: none;
  transition: opacity .2s, transform .2s;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }