:root {
  --color-bg: #f5f6f8;
  --color-surface: #ffffff;
  --color-border: #e2e5ea;
  --color-text: #1c222b;
  --color-text-muted: #5b6472;
  --color-text-faint: #8a93a1;
  --color-primary: #175c8e;
  --color-primary-hover: #114a72;
  --color-accent-bg: #eaf2f8;
  --color-error: #c53030;
  --color-error-bg: #fdecec;
  --color-success: #1f7a4d;
  --color-success-bg: #eaf7ef;
  --radius: 10px;
  --header-h: auto;
  --footer-h: 76px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: -apple-system, BlinkMacSystemFont, "Malgun Gothic", "Apple SD Gothic Neo", "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  overflow-x: hidden;
  width: 100%;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: 16px;
}

/* ---------- Header ---------- */
.app-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.app-header__inner {
  max-width: 640px;
  margin: 0 auto;
  padding: 14px 16px 12px;
}

.app-header__title {
  margin: 0 0 10px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--color-text);
}

.app-header__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--color-text-muted);
  margin-bottom: 8px;
}

.meta-item--save {
  color: var(--color-text-faint);
}

.meta-item--save.is-saving {
  color: var(--color-primary);
}

.meta-item--save.is-saved {
  color: var(--color-success);
}

.meta-item--save.is-error {
  color: var(--color-error);
  font-weight: 600;
}

.meta-dot {
  color: var(--color-text-faint);
}

.progress-track {
  width: 100%;
  height: 6px;
  border-radius: 999px;
  background: var(--color-border);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--color-primary);
  border-radius: 999px;
  transition: width 0.25s ease;
}

/* ---------- Main / form area ---------- */
.app-main {
  flex: 1;
  width: 100%;
  padding: 20px 16px calc(var(--footer-h) + 24px);
}

.form-container {
  max-width: 640px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 18px 16px;
}

.step-title {
  font-size: 19px;
  font-weight: 700;
  margin: 0 0 4px;
  color: var(--color-text);
}

.step-subtitle {
  font-size: 14px;
  color: var(--color-text-muted);
  margin: 0 0 14px;
}

.step-title-block {
  padding-bottom: 2px;
}

/* Intro card */
.intro-block + .intro-block {
  margin-top: 14px;
}

.intro-block h3 {
  font-size: 15px;
  margin: 0 0 6px;
  color: var(--color-primary);
}

.intro-block p {
  margin: 0;
  font-size: 15px;
  color: var(--color-text-muted);
}

.intro-list {
  margin: 6px 0 0;
  padding-left: 18px;
  font-size: 15px;
  color: var(--color-text-muted);
}

.intro-list li {
  margin-bottom: 4px;
}

/* ---------- Fields ---------- */
.field {
  margin-bottom: 20px;
}

.field:last-child {
  margin-bottom: 0;
}

.field__label {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.field__required {
  color: var(--color-error);
  margin-left: 2px;
}

.field__help {
  font-size: 13px;
  color: var(--color-text-faint);
  margin: -2px 0 8px;
}

.field__error {
  display: none;
  font-size: 13px;
  color: var(--color-error);
  margin-top: 6px;
}

.field.has-error .field__error {
  display: block;
}

.field.has-error .field__label {
  color: var(--color-error);
}

.field.has-error .text-input,
.field.has-error .options {
  border-color: var(--color-error);
}

.field.is-hidden {
  display: none;
}

.field--tight {
  margin-bottom: 16px;
}

.text-input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-surface);
  color: var(--color-text);
  min-height: 44px;
}

.text-input:focus,
.option-input:focus + .option-label {
  outline: 2px solid var(--color-primary);
  outline-offset: 1px;
}

textarea.text-input {
  min-height: 96px;
  resize: vertical;
}

select.text-input {
  appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%235b6472'><path d='M5.5 7.5l4.5 4.5 4.5-4.5' stroke='%235b6472' stroke-width='1.6' fill='none' stroke-linecap='round' stroke-linejoin='round'/></svg>");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

.field__unit-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.field__unit {
  font-size: 14px;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.options {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.option-item {
  position: relative;
}

.option-input {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
}

.option-label {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 10px 14px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  cursor: pointer;
  font-size: 15px;
  color: var(--color-text);
  transition: border-color 0.15s ease, background 0.15s ease;
}

.option-label:active {
  background: var(--color-accent-bg);
}

.option-input:checked + .option-label {
  border-color: var(--color-primary);
  background: var(--color-accent-bg);
  color: var(--color-primary);
  font-weight: 600;
}

.option-mark {
  flex: none;
  width: 18px;
  height: 18px;
  border: 1.6px solid var(--color-text-faint);
  background: var(--color-surface);
}

.option-mark--radio {
  border-radius: 50%;
}

.option-mark--checkbox {
  border-radius: 4px;
}

.option-input:checked + .option-label .option-mark {
  border-color: var(--color-primary);
  background: var(--color-primary);
  position: relative;
}

.option-input:checked + .option-label .option-mark--radio::after {
  content: "";
  position: absolute;
  inset: 4px;
  border-radius: 50%;
  background: var(--color-surface);
}

.option-input:checked + .option-label .option-mark--checkbox::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 5px;
  height: 10px;
  border-right: 2px solid var(--color-surface);
  border-bottom: 2px solid var(--color-surface);
  transform: rotate(40deg);
}

/* options as grid for compact lists (2 columns on wider screens) */
.options--grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

@media (min-width: 480px) {
  .options--grid-2 {
    grid-template-columns: 1fr 1fr;
  }
}

/* Scale (Likert) */
.scale-row {
  display: flex;
  justify-content: space-between;
  gap: 6px;
}

.scale-item {
  flex: 1;
}

.scale-input {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
}

.scale-label {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  min-height: 52px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text-muted);
}

.scale-input:checked + .scale-label {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: #fff;
}

.scale-caption {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--color-text-faint);
  margin-top: 6px;
}

.scale-row--compact {
  gap: 3px;
}

/* 320px급 초소형 화면: 좌우 여백을 살짝 줄여 Q20/Q23 0~5 선택 버튼의
   탭 영역을 최대한 넓게 확보한다(엄지 터치 접근성). */
@media (max-width: 340px) {
  .app-main {
    padding-left: 12px;
    padding-right: 12px;
  }
  .card {
    padding-left: 12px;
    padding-right: 12px;
  }
}

.scale-row--compact .scale-label {
  min-height: 44px;
  font-size: 14px;
}

/* Number group (legacy) */
.number-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.number-group__row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.number-group__label {
  flex: 1;
  font-size: 14px;
  color: var(--color-text-muted);
}

.number-group__input {
  width: 104px;
  flex: none;
}

/* Matrix fields (number_matrix / staff_matrix) */
.matrix {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.matrix-group__title {
  margin: 10px 0 2px;
  font-size: 13px;
  font-weight: 700;
  color: var(--color-primary);
}

.matrix-group__title:first-child {
  margin-top: 0;
}

.matrix-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.matrix-row__label {
  flex: 1;
  min-width: 120px;
  font-size: 14px;
  color: var(--color-text-muted);
}

.matrix-row__input {
  width: 88px;
  flex: none;
}

.matrix-row__unknown-btn {
  flex: none;
  min-height: 36px;
  padding: 0 10px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: var(--color-surface);
  color: var(--color-text-muted);
  font-size: 12.5px;
  cursor: pointer;
}

.matrix-row__unknown-btn.is-active {
  border-color: var(--color-primary);
  background: var(--color-accent-bg);
  color: var(--color-primary);
  font-weight: 600;
}

.matrix-computed {
  margin: 4px 0 0;
  padding: 10px 12px;
  border-radius: 8px;
  background: var(--color-accent-bg);
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary);
}

/* Bulk-apply control on grid pages */
.bulk-apply {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
  padding: 10px 12px;
  border: 1px dashed var(--color-border);
  border-radius: 8px;
}

.bulk-apply__label {
  font-size: 12.5px;
  color: var(--color-text-faint);
  flex: 1 0 100%;
}

.bulk-apply__buttons {
  display: flex;
  gap: 6px;
}

.bulk-apply__btn {
  min-width: 36px;
  min-height: 32px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: var(--color-surface);
  color: var(--color-text-muted);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}

.bulk-apply__btn:active {
  background: var(--color-accent-bg);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.field__limit-note {
  font-size: 12.5px;
  color: var(--color-text-faint);
  margin-top: 6px;
}

/* Response-code legend for M01~M42 / P01~P46 grids */
.legend-card {
  background: var(--color-accent-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 12px 14px;
  margin-bottom: 16px;
}

.legend-card__title {
  margin: 0 0 8px;
  font-size: 13px;
  font-weight: 700;
  color: var(--color-primary);
}

.legend-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px 10px;
}

.legend-item {
  display: flex;
  align-items: baseline;
  gap: 6px;
  font-size: 12.5px;
  line-height: 1.4;
  color: var(--color-text-muted);
}

.legend-item__num {
  flex: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* Grid progress indicator (마취업무 18/42 완료 등) */
.grid-progress {
  margin-bottom: 16px;
}

.grid-progress__overall {
  margin: 0 0 6px;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-text);
}

.grid-progress__track {
  width: 100%;
  height: 6px;
  border-radius: 999px;
  background: var(--color-border);
  overflow: hidden;
}

.grid-progress__fill {
  height: 100%;
  background: var(--color-primary);
  border-radius: 999px;
  transition: width 0.2s ease;
}

.grid-progress__cat {
  margin: 6px 0 0;
  font-size: 12.5px;
  color: var(--color-text-faint);
}

/* Review: grid summary rows */
.review-grid-summary {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  color: var(--color-success);
}

.review-grid-summary--incomplete {
  color: var(--color-error);
}

/* Sub-group headings inside a form step (e.g. 마취 전/중/후) */
.field-group-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-primary);
  margin: 4px 0 10px;
  padding-top: 14px;
  border-top: 1px solid var(--color-border);
}

.field-group-title:first-child {
  padding-top: 0;
  border-top: none;
}

/* ---------- Review step ---------- */
.review-section {
  margin-bottom: 14px;
}

.review-section__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.review-section__title {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text);
  margin: 0;
}

.btn-edit {
  border: 1px solid var(--color-primary);
  color: var(--color-primary);
  background: var(--color-surface);
  border-radius: 6px;
  padding: 5px 10px;
  font-size: 13px;
  cursor: pointer;
  min-height: 32px;
}

.review-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.review-row {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--color-border);
  font-size: 14px;
}

.review-row:last-child {
  border-bottom: none;
}

.review-row__label {
  color: var(--color-text-faint);
}

.review-row__value {
  color: var(--color-text);
  font-weight: 500;
  word-break: break-word;
}

.review-row__value--empty {
  color: var(--color-error);
  font-weight: 600;
}

.review-note {
  font-size: 13px;
  color: var(--color-text-faint);
  margin-top: 6px;
}

.submit-card {
  border: 1px solid var(--color-primary);
  background: var(--color-accent-bg);
}

.submit-card p {
  margin: 0 0 12px;
  font-size: 14px;
  color: var(--color-text-muted);
}

.submit-card__error {
  color: var(--color-error) !important;
  font-weight: 600;
  margin: 4px 0 0 !important;
}

.result-card {
  border: 1px solid var(--color-success);
  background: var(--color-success-bg);
  text-align: center;
}

.result-card h2 {
  color: var(--color-success);
  font-size: 18px;
  margin: 0 0 8px;
}

.result-card p {
  margin: 0 0 8px;
  color: var(--color-text-muted);
  font-size: 14px;
}

.result-card p:last-child {
  margin-bottom: 0;
}

.result-card__code {
  font-weight: 700;
  color: var(--color-success);
}

.result-card__footer {
  font-size: 12.5px;
  color: var(--color-text-faint);
}

.notice-card {
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  text-align: center;
}

.notice-card h2 {
  font-size: 18px;
  margin: 0 0 8px;
  color: var(--color-text);
}

.notice-card p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 14px;
}

/* ---------- Footer ---------- */
.app-footer {
  position: sticky;
  bottom: 0;
  z-index: 20;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
}

.app-footer__inner {
  max-width: 640px;
  margin: 0 auto;
  padding: 12px 16px;
  display: flex;
  gap: 10px;
}

.btn {
  flex: 1;
  min-height: 46px;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background 0.15s ease, opacity 0.15s ease;
}

.btn--primary {
  background: var(--color-primary);
  color: #fff;
}

.btn--primary:hover {
  background: var(--color-primary-hover);
}

.btn--primary:disabled {
  background: #a9bbc9;
  cursor: not-allowed;
}

.btn--secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn--secondary:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ---------- Resume gate (이어서 작성 / 새로 시작) ---------- */
.resume-gate__actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 18px;
}

.resume-gate__actions .btn {
  width: 100%;
}

/* ---------- Confirm modal (최종 제출 확인) ---------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(28, 34, 43, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 100;
}

.modal-card {
  width: 100%;
  max-width: 380px;
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 22px 20px 20px;
  box-shadow: 0 12px 32px rgba(28, 34, 43, 0.22);
}

.modal-card__title {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 700;
  color: var(--color-text);
}

.modal-card__message {
  margin: 0 0 4px;
  font-size: 15px;
  line-height: 1.5;
  color: var(--color-text-muted);
}

.modal-card__actions {
  display: flex;
  gap: 10px;
  margin-top: 18px;
}

.modal-card__actions .btn {
  flex: 1;
}

@media (min-width: 640px) {
  .app-header__title {
    font-size: 18px;
  }
  .step-title {
    font-size: 21px;
  }
}