/* ==============================
   대출 갈아타기 이자 비교 계산기 (lr-)
   색상은 블로그 css/style.css 의 CSS 변수만 사용한다.
   예외: 오류·손해 표시용 빨간색 1개 (--lr-color-error, 테두리·아이콘에만)
   ============================== */

:root {
  --lr-color-error: #dc2626;
  --lr-radius: 10px;
  --lr-touch: 44px;
}

/* ---------- Header ---------- */

.lr-header {
  border-bottom: 1px solid var(--color-border);
  padding: 0.75rem 0;
}

.lr-header-inner {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.lr-back {
  display: inline-flex;
  align-items: center;
  min-height: var(--lr-touch);
  font-weight: 600;
}

.lr-theme-toggle {
  min-width: var(--lr-touch);
  min-height: var(--lr-touch);
}

/* ---------- Layout ---------- */

.lr-main {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 1.25rem 1.25rem 3rem;
}

.lr-intro {
  margin-bottom: 1.25rem;
}

.lr-title {
  font-size: 1.5rem;
  line-height: 1.35;
  margin: 0 0 0.25rem;
  color: var(--color-text);
  word-break: keep-all;
}

.lr-subtitle {
  margin: 0;
  color: var(--color-text-secondary);
  word-break: keep-all;
}

/* ---------- Guide ---------- */

.lr-guide {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--lr-radius);
  padding: 0 1rem;
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
}

.lr-guide summary {
  cursor: pointer;
  font-weight: 700;
  min-height: var(--lr-touch);
  display: flex;
  align-items: center;
  list-style-position: inside;
}

.lr-guide summary::-webkit-details-marker {
  margin-right: 0.4rem;
}

.lr-guide[open] summary {
  border-bottom: 1px solid var(--color-border);
}

.lr-guide-steps,
.lr-guide-terms {
  margin: 0.75rem 0;
  padding-left: 1.25rem;
}

.lr-guide-steps li,
.lr-guide-terms li {
  margin-bottom: 0.3rem;
  word-break: keep-all;
}

.lr-guide-heading {
  margin: 0.75rem 0 0;
}

/* ---------- Sections ---------- */

.lr-form {
  margin-bottom: 1.5rem;
}

.lr-section {
  border: 1px solid var(--color-border);
  border-radius: var(--lr-radius);
  padding: 1rem 1rem 0.25rem;
  margin-bottom: 1rem;
}

.lr-section-title {
  font-size: 1.1rem;
  margin: 0 0 0.9rem;
  color: var(--color-text);
}

/* ---------- Fields ---------- */

.lr-chip:focus-visible,
.lr-input:focus-visible,
.lr-check input:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.lr-field {
  margin: 0 0 1.1rem;
  padding: 0;
  border: none;
  min-width: 0;
}

.lr-field[hidden],
#lr-fee-rate-group[hidden] {
  display: none;
}

.lr-label {
  display: block;
  font-weight: 700;
  margin-bottom: 0.4rem;
  padding: 0;
  color: var(--color-text);
  word-break: keep-all;
}

/* 라벨 왼쪽 · 작은 입력칸 오른쪽 (금리, 수수료율, 부과 기간, 지난 기간) */
.lr-field-inline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.lr-field-inline .lr-label {
  margin-bottom: 0;
  min-width: 0;
}

.lr-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.lr-input-wrap-small {
  flex: 0 0 8.5rem;
  max-width: 50%;
}

.lr-input {
  width: 100%;
  min-width: 0;
  min-height: 48px;
  padding: 0.5rem 3.5rem 0.5rem 0.9rem;
  font: inherit;
  font-size: 1.125rem; /* 16px 이상: iOS 자동 확대 방지 */
  font-variant-numeric: tabular-nums;
  text-align: right;
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--lr-radius);
  -webkit-appearance: none;
  appearance: none;
}

.lr-input-wrap-small .lr-input {
  padding-right: 3rem;
}

.lr-input:focus {
  border-color: var(--color-accent);
}

.lr-input[aria-invalid="true"] {
  border-color: var(--lr-color-error);
  box-shadow: 0 0 0 1px var(--lr-color-error);
}

.lr-unit {
  position: absolute;
  right: 0.9rem;
  color: var(--color-text-secondary);
  pointer-events: none;
}

.lr-hint {
  margin: 0.3rem 0 0;
  min-height: 1.5em;
  text-align: right;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  word-break: keep-all;
  overflow-wrap: anywhere;
}

.lr-hint:empty {
  min-height: 0;
}

.lr-hint-left {
  text-align: left;
}

/* ---------- Chips ---------- */

/* 칩 7개: 좁으면 4+3, 넓으면 한 줄 (flex-wrap은 마지막 칩 하나만 길게 늘어남) */
.lr-quick {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(3.5rem, 1fr));
  gap: 0.5rem;
  margin-top: 0.5rem;
}

/* 320px대에서는 auto-fit이 3+3+1이 되어 '30년'만 홀로 남으므로 4+3으로 고정 */
@media (max-width: 374px) {
  .lr-quick {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.lr-chip {
  min-width: 0;
  min-height: var(--lr-touch);
  padding: 0 0.25rem;
  font: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-tag-text);
  background: var(--color-tag-bg);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  cursor: pointer;
  white-space: nowrap;
}

.lr-chip:hover {
  border-color: var(--color-accent);
}

.lr-chip[aria-pressed="true"] {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-bg);
}

/* ---------- Checkbox ---------- */

.lr-check {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  min-height: var(--lr-touch);
  font-weight: 700;
  color: var(--color-text);
  cursor: pointer;
}

.lr-check input {
  width: 22px;
  height: 22px;
  margin: 0;
  flex-shrink: 0;
  accent-color: var(--color-accent);
  cursor: pointer;
}

.lr-check + .lr-hint {
  margin-top: 0;
}

/* ---------- Segmented radios ---------- */

.lr-segment-options {
  display: grid;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--lr-radius);
  padding: 4px;
  gap: 4px;
}

.lr-segment-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.lr-segment-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.lr-segment-options input {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
  margin: 0;
  pointer-events: none;
}

.lr-segment-options label {
  min-width: 0;
  min-height: var(--lr-touch);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0.25rem 0.2rem;
  border-radius: 7px;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-text-secondary);
  cursor: pointer;
  white-space: nowrap;
}

/* 320px 등 좁은 화면: 줄바꿈 없이 글자만 작게 */
@media (max-width: 374px) {
  .lr-segment-options label {
    font-size: 0.85rem;
    padding: 0.25rem 0.1rem;
  }
}

.lr-segment-options input:checked + label {
  background: var(--color-bg);
  color: var(--color-accent);
  box-shadow: 0 0 0 1px var(--color-accent);
}

.lr-segment-options input:focus-visible + label {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* ---------- Result ---------- */

.lr-result {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--lr-radius);
  padding: 1rem 1.1rem 1.1rem;
}

.lr-result-title {
  font-size: 1.1rem;
  margin: 0 0 0.6rem;
  color: var(--color-text);
}

.lr-verdict {
  background: var(--color-bg);
  border: 2px solid var(--color-accent);
  border-radius: var(--lr-radius);
  padding: 0.9rem 1rem;
  margin-bottom: 0.75rem;
}

.lr-verdict[data-verdict="loss"] {
  border-color: var(--lr-color-error);
}

.lr-verdict[data-verdict="even"] {
  border-color: var(--color-border);
}

.lr-verdict[hidden] {
  display: none;
}

.lr-verdict-title {
  margin: 0;
  font-size: 1.25rem;
  line-height: 1.4;
  font-weight: 800;
  color: var(--color-text);
  word-break: keep-all;
}

.lr-verdict-text {
  margin: 0.25rem 0 0;
  color: var(--color-text);
  word-break: keep-all;
  overflow-wrap: anywhere;
}

.lr-verdict-text[hidden] {
  display: none;
}

.lr-net-box {
  margin-top: 0.6rem;
  padding-top: 0.6rem;
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.1rem;
}

.lr-net-label {
  align-self: flex-start;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-text-secondary);
}

.lr-net {
  max-width: 100%;
  font-size: 1.75rem;
  line-height: 1.3;
  font-weight: 800;
  color: var(--color-accent);
  font-variant-numeric: tabular-nums;
  text-align: right;
  overflow-wrap: anywhere;
}

.lr-verdict[data-verdict="loss"] .lr-net,
.lr-verdict[data-verdict="even"] .lr-net {
  color: var(--color-text);
}

.lr-breakeven {
  margin: 0.5rem 0 0;
  font-weight: 700;
  color: var(--color-text);
  word-break: keep-all;
}

.lr-rows {
  margin: 0;
}

.lr-row {
  display: flex;
  flex-wrap: wrap; /* 긴 금액은 숫자 중간이 아니라 통째로 다음 줄로 */
  justify-content: space-between;
  align-items: baseline;
  gap: 0.75rem;
  padding: 0.35rem 0;
}

.lr-row dt {
  color: var(--color-text-secondary);
  flex-shrink: 0;
}

.lr-row dd {
  margin: 0 0 0 auto;
  min-width: 0;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  text-align: right;
  overflow-wrap: anywhere;
}

.lr-row-strong dt {
  color: var(--color-text);
  font-weight: 700;
}

.lr-row-strong dd {
  font-weight: 700;
  color: var(--color-text);
}

.lr-row-sub {
  padding: 0.15rem 0 0.15rem 0.75rem;
  font-size: 0.9rem;
}

.lr-row-sub dd {
  font-weight: 500;
  color: var(--color-text-secondary);
}

.lr-monthly {
  margin-top: 0.6rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--color-border);
}

.lr-monthly-label {
  margin: 0;
  font-weight: 700;
  color: var(--color-text);
}

.lr-monthly-value {
  margin: 0.2rem 0 0;
  font-size: 1.1rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  text-align: right;
  color: var(--color-text);
  overflow-wrap: anywhere;
}

.lr-monthly-diff {
  margin: 0.1rem 0 0;
  text-align: right;
  font-weight: 600;
  color: var(--color-text-secondary);
}

.lr-monthly-notes,
.lr-notes {
  margin: 0.5rem 0 0;
  padding: 0;
  list-style: none;
}

.lr-monthly-notes[hidden],
.lr-notes[hidden] {
  display: none;
}

.lr-monthly-notes li {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  word-break: keep-all;
}

.lr-notes {
  margin-top: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.lr-notes li {
  padding: 0.6rem 0.8rem;
  background: var(--color-tag-bg);
  color: var(--color-tag-text);
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  word-break: keep-all;
}

.lr-error {
  margin: 0;
  padding: 0.75rem 0.9rem;
  border-left: 4px solid var(--lr-color-error);
  border-radius: 6px;
  background: var(--color-bg);
  color: var(--color-text);
  font-weight: 600;
  word-break: keep-all;
}

.lr-error::before {
  content: "⚠ ";
  color: var(--lr-color-error);
}

.lr-disclaimer {
  margin: 0.9rem 0 0;
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--color-text-secondary);
  word-break: keep-all;
}

/* 320px에서 최대 금액(15자)이 숫자 중간에서 끊기지 않게 */
@media (max-width: 374px) {
  .lr-net {
    font-size: 1.4rem;
  }
}

@media (min-width: 600px) {
  .lr-title {
    font-size: 1.75rem;
  }
  .lr-net {
    font-size: 2rem;
  }
}

/* ---------- 이렇게 계산해요 / 자주 묻는 질문 / 관련 글 ---------- */

.lr-explain,
.lr-faq {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--lr-radius);
  padding: 1rem;
  margin-top: 1.5rem;
  font-size: 0.95rem;
  line-height: 1.7;
  word-break: keep-all;
  color: var(--color-text);
}

.lr-explain-title,
.lr-faq-title {
  font-size: 1.1rem;
  margin: 0 0 0.5rem;
  color: var(--color-text);
}

.lr-explain-lead {
  margin: 0 0 0.5rem;
  color: var(--color-text-secondary);
}

.lr-explain-steps,
.lr-explain-notes {
  margin: 0.5rem 0 0.75rem;
  padding-left: 1.25rem;
}

.lr-explain-steps li,
.lr-explain-notes li {
  margin-bottom: 0.4rem;
}

.lr-formula {
  display: block;
  margin-top: 0.25rem;
  padding: 0.2rem 0.5rem;
  border-left: 3px solid var(--color-accent);
  color: var(--color-text);
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}

.lr-example {
  background: var(--color-tag-bg);
  border-radius: var(--lr-radius);
  padding: 0.75rem 0.9rem;
  margin: 0.75rem 0;
}

.lr-example-title {
  margin: 0 0 0.4rem;
  color: var(--color-text);
}

.lr-example-title strong {
  color: var(--color-tag-text);
}

.lr-example-rows {
  margin: 0;
}

.lr-example-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.75rem;
  padding: 0.3rem 0;
  border-top: 1px solid var(--color-border);
}

.lr-example-row:first-child {
  border-top: 0;
}

.lr-example-row dt {
  color: var(--color-text-secondary);
  flex-shrink: 0;
}

.lr-example-row dd {
  margin: 0;
  min-width: 0;
  text-align: right;
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}

.lr-explain-sub {
  margin: 0.75rem 0 0;
}

.lr-explain-notes {
  margin-bottom: 0;
  color: var(--color-text-secondary);
}

.lr-faq {
  padding-bottom: 0.25rem;
}

.lr-faq-item {
  border-top: 1px solid var(--color-border);
}

.lr-faq-q {
  cursor: pointer;
  font-weight: 600;
  min-height: var(--lr-touch);
  display: flex;
  align-items: center;
  padding: 0.4rem 0;
  list-style-position: inside;
}

.lr-faq-q::-webkit-details-marker {
  margin-right: 0.4rem;
}

.lr-faq-q:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.lr-faq-item[open] .lr-faq-q {
  border-bottom: 1px solid var(--color-border);
}

.lr-faq-a {
  margin: 0.5rem 0 1rem;
  color: var(--color-text);
}

.lr-related {
  margin: 1.25rem 0 0;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--color-text-secondary);
  word-break: keep-all;
}

.lr-related a {
  color: var(--color-accent);
}

/* FAQ 질문 앞 펼침 표시: summary가 flex라 기본 삼각형(::marker)이 보이지 않아 직접 그린다 */
.lr-faq-q {
  list-style: none;
}

.lr-faq-q::-webkit-details-marker {
  display: none;
}

.lr-faq-q::before {
  content: "▸";
  flex-shrink: 0;
  width: 1.1em;
  color: var(--color-accent);
}

.lr-faq-item[open] .lr-faq-q::before {
  content: "▾";
}