/* DaysBetween v3 — 한지 종이 디자인 (agecalc 계열 통일) */

:root {
  --dbw-paper: #f3f2ed;
  --dbw-hanji: #faf7ef;
  --dbw-card: #ffffff;
  --dbw-line: #ddd9cf;
  --dbw-line-strong: #c9c4b6;
  --dbw-ink: #24292f;
  --dbw-body: #4a5058;
  --dbw-muted: #6e7378;
  --dbw-dim: #9a9e9a;
  --dbw-indigo: #2e4d8f;
  --dbw-indigo-deep: #223b70;
  --dbw-indigo-bg: #eef1f8;
  --dbw-seal: #b6392f;
  --dbw-radius: 18px;
  --dbw-shadow: 0 6px 24px rgba(36, 41, 47, .05);
}

.dbw-stage {
  background:
    radial-gradient(1000px 400px at 50% -8%, rgba(46, 77, 143, .06), transparent 65%),
    var(--dbw-paper);
  border-radius: 24px;
  margin: .6rem auto 1.5rem;
  max-width: 1080px;
}
.dbw-wrap { max-width: 880px; margin: 0 auto; padding: 1.6rem .9rem 3.5rem; color: var(--dbw-ink); }

.dbw-head { text-align: center; padding: 1rem 0 .8rem; }
.dbw-title {
  font-family: "Gowun Batang", serif; font-weight: 700;
  font-size: clamp(1.9rem, 7vw, 2.9rem); line-height: 1.25;
  display: inline-flex; align-items: center; gap: .55rem; margin-bottom: .5rem;
}
.dbw-title-accent { color: var(--dbw-indigo); }
.dbw-seal {
  display: inline-flex; align-items: center; justify-content: center;
  width: 2.5rem; height: 2.5rem; border-radius: 8px;
  background: var(--dbw-seal); color: #fdf6ee;
  font-family: "Gowun Batang", serif; font-size: .8rem; font-weight: 700; line-height: 1.05;
  transform: rotate(6deg); box-shadow: 0 3px 8px rgba(182, 57, 47, .3);
}
.dbw-sub {
  font-family: "Gowun Batang", serif; color: var(--dbw-muted);
  font-size: clamp(.9rem, 3.3vw, 1.02rem); margin: 0; line-height: 1.65;
}

.dbw-btn-main { background: var(--dbw-indigo); color: #fff; font-weight: 700; border: none; border-radius: 12px; }
.dbw-btn-main:hover { background: var(--dbw-indigo-deep); color: #fff; }

.dbw-panel {
  border: 1.5px solid var(--dbw-line-strong); background: var(--dbw-hanji);
  border-radius: var(--dbw-radius); padding: 1.2rem 1rem; margin-top: 1rem;
  box-shadow: var(--dbw-shadow);
}
.dbw-panel .form-control { border-radius: 12px; border-color: var(--dbw-line-strong); background: #fff; }
.dbw-panel .form-control:focus { border-color: var(--dbw-indigo); box-shadow: 0 0 0 .2rem rgba(46, 77, 143, .12); }

.dbw-presets { display: flex; flex-wrap: wrap; gap: .4rem; align-items: center; }
.dbw-preset-label { font-size: .76rem; color: var(--dbw-dim); font-weight: 700; margin-right: .1rem; }
.dbw-preset {
  border: 1px solid var(--dbw-line-strong); background: #fff; border-radius: 999px;
  font-size: .8rem; font-weight: 600; color: var(--dbw-ink); padding: .38rem .85rem;
}
.dbw-preset:hover, .dbw-preset:active { border-color: var(--dbw-indigo); color: var(--dbw-indigo); background: var(--dbw-indigo-bg); }

.dbw-fallback { background: var(--dbw-indigo-bg); border-radius: 12px; padding: .8rem 1rem; font-size: .9rem; }

.dbw-result { margin-top: 1.15rem; }
.dbw-main-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: .55rem; }
.dbw-main-cell {
  background: #fff; border: 1px solid var(--dbw-line); border-radius: 14px;
  padding: .9rem .6rem; text-align: center;
}
.dbw-main-cell.primary { border: 1.5px solid var(--dbw-indigo); background: var(--dbw-indigo-bg); }
.dbw-main-label { font-size: .75rem; color: var(--dbw-body); font-weight: 700; }
.dbw-main-value {
  font-family: "Gowun Batang", serif;
  font-size: 1.95rem; font-weight: 700; line-height: 1.2; margin-top: .1rem;
}
.dbw-main-value small { font-size: .85rem; font-weight: 700; margin-left: .08rem; }
.dbw-main-cell.primary .dbw-main-value { color: var(--dbw-indigo-deep); }

.dbw-sub-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: .5rem; margin-top: .55rem; }
.dbw-sub-cell {
  display: flex; flex-direction: column; gap: .15rem;
  background: #fff; border: 1px solid var(--dbw-line); border-radius: 12px; padding: .65rem .8rem;
}
.dbw-sub-label { font-size: .74rem; color: var(--dbw-body); font-weight: 600; }
.dbw-sub-value { font-size: .95rem; font-weight: 800; }

.dbw-note { font-size: .74rem; color: var(--dbw-dim); margin: .8rem 0 0; line-height: 1.65; }

.dbw-sec {
  background: var(--dbw-card); border: 1px solid var(--dbw-line); border-radius: var(--dbw-radius);
  padding: 1.2rem 1rem; margin-top: 1rem; box-shadow: var(--dbw-shadow);
}
.dbw-sec-title {
  font-family: "Gowun Batang", serif; font-weight: 700;
  font-size: 1.08rem; margin-bottom: .55rem;
  display: flex; align-items: center; gap: .5rem;
}
.dbw-sec-title::before { content: ""; width: 5px; height: 1rem; border-radius: 4px; background: var(--dbw-seal); flex: 0 0 auto; }
.dbw-desc { font-size: .86rem; color: var(--dbw-body); margin-bottom: .9rem; line-height: 1.65; }

/* 마일스톤 */
.dbw-ms-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: .5rem; }
.dbw-ms-cell {
  background: var(--dbw-hanji); border: 1px solid var(--dbw-line); border-radius: 12px;
  padding: .7rem .8rem; display: flex; flex-direction: column; gap: .15rem;
}
.dbw-ms-cell.passed { opacity: .55; }
.dbw-ms-tag { font-size: .74rem; font-weight: 800; color: var(--dbw-seal); }
.dbw-ms-date { font-size: .92rem; font-weight: 800; }
.dbw-ms-day { font-size: .72rem; color: var(--dbw-muted); }

/* 환산표 */
.dbw-conv-list { padding-left: 1.15rem; margin: 0; }
.dbw-conv-list li { font-size: .88rem; color: var(--dbw-body); margin-bottom: .45rem; line-height: 1.6; }

.dbw-related { display: flex; flex-wrap: wrap; gap: .4rem; }
.dbw-related-link {
  display: inline-block; padding: .5rem .95rem;
  border: 1px solid var(--dbw-line-strong); border-radius: 999px; font-size: .86rem; font-weight: 600;
  color: var(--dbw-ink); text-decoration: none; background: #fff;
}
.dbw-related-link:hover { border-color: var(--dbw-indigo); color: var(--dbw-indigo); background: var(--dbw-indigo-bg); }

.dbw-sec .accordion-item { border: 1px solid var(--dbw-line); border-radius: 12px !important; margin-bottom: .5rem; overflow: hidden; }
.dbw-sec .accordion-button { font-size: .9rem; font-weight: 700; padding: .85rem .95rem; background: #fff; color: var(--dbw-ink); }
.dbw-sec .accordion-button:not(.collapsed) { background: var(--dbw-indigo-bg); color: var(--dbw-indigo-deep); box-shadow: none; }
.dbw-sec .accordion-button:focus { box-shadow: none; }
.dbw-sec .accordion-body { font-size: .88rem; color: var(--dbw-body); line-height: 1.75; }

.dbw-totop {
  position: fixed; right: .9rem; bottom: 1.1rem; z-index: 200;
  width: 2.8rem; height: 2.8rem; border-radius: 50%;
  border: none; background: var(--dbw-indigo); color: #fff; font-size: 1.1rem; font-weight: 800;
  box-shadow: 0 4px 14px rgba(34, 59, 112, .3);
  opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: opacity .2s ease, transform .2s ease, visibility .2s;
}
.dbw-totop.show { opacity: 1; visibility: visible; transform: translateY(0); }

@media (min-width: 768px) {
  .dbw-wrap { padding: 2rem 1.4rem 4rem; }
  .dbw-panel, .dbw-sec { padding: 1.6rem 1.5rem; }
  .dbw-main-value { font-size: 2.3rem; }
  .dbw-sub-grid { grid-template-columns: repeat(4, 1fr); }
  .dbw-ms-grid { grid-template-columns: repeat(4, 1fr); }
}

@media (prefers-reduced-motion: reduce) {
  .dbw-totop { transition: none; }
}

/* ── 날짜 더하기/빼기 ── */
.dbw-mode-group { display: flex; gap: .4rem; }
.dbw-mode {
  flex: 1; padding: .55rem .5rem; border-radius: 12px; font-size: .88rem; font-weight: 700;
  border: 1.5px solid var(--dbw-line-strong); background: #fff; color: var(--dbw-ink);
}
.dbw-mode.on { border-color: var(--dbw-indigo); background: var(--dbw-indigo-bg); color: var(--dbw-indigo-deep); }
.dbw-panel .form-check-input:checked { background-color: var(--dbw-indigo); border-color: var(--dbw-indigo); }
.dbw-adder-result {
  display: flex; align-items: baseline; gap: .7rem; flex-wrap: wrap;
  background: #fff; border: 1.5px solid var(--dbw-indigo); border-radius: 14px; padding: .85rem 1rem;
}
.dbw-adder-label { font-size: .78rem; font-weight: 700; color: var(--dbw-body); }
.dbw-adder-value {
  font-family: "Gowun Batang", serif; font-size: 1.5rem; font-weight: 700; color: var(--dbw-indigo-deep);
}

/* ── 법정 기간 ── */
.dbw-law-list { padding-left: 1.2rem; margin: 0; }
.dbw-law-list li { font-size: .88rem; color: var(--dbw-body); margin-bottom: .55rem; line-height: 1.7; }

/* ── 월별 일수 ── */
.dbw-mdays-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: .45rem; }
.dbw-mdays-cell {
  display: flex; flex-direction: column; align-items: center; gap: .05rem;
  background: var(--dbw-hanji); border: 1px solid var(--dbw-line); border-radius: 12px; padding: .55rem .3rem;
}
.dbw-mdays-cell.feb { border-color: var(--dbw-seal); background: #fdf2f0; }
.dbw-mdays-m { font-size: .72rem; color: var(--dbw-muted); font-weight: 700; }
.dbw-mdays-m::after { content: "월"; }
.dbw-mdays-d { font-family: "Gowun Batang", serif; font-size: 1.15rem; font-weight: 700; }
.dbw-mdays-d::after { content: "일"; font-size: .7rem; font-weight: 600; color: var(--dbw-muted); margin-left: .05rem; }

/* ── FAQ ── */
.dbw-faq-list { display: flex; flex-direction: column; gap: .5rem; }
.dbw-faq { border: 1px solid var(--dbw-line); border-radius: 12px; background: #fff; padding: 0; }
.dbw-faq summary {
  list-style: none; cursor: pointer; padding: .85rem .95rem;
  font-size: .9rem; font-weight: 700; color: var(--dbw-ink);
}
.dbw-faq summary::-webkit-details-marker { display: none; }
.dbw-faq summary::before { content: "Q. "; color: var(--dbw-seal); font-weight: 800; }
.dbw-faq[open] summary { background: var(--dbw-indigo-bg); border-radius: 12px 12px 0 0; color: var(--dbw-indigo-deep); }
.dbw-faq p { font-size: .86rem; color: var(--dbw-body); line-height: 1.75; margin: 0; padding: .8rem .95rem; }

@media (min-width: 768px) {
  .dbw-mdays-grid { grid-template-columns: repeat(6, 1fr); }
}