/* =====================================================================
 * [2026-10-17] 공부방(중급반 · 고급반 · 급수반) B안 '단계 사다리'
 * ---------------------------------------------------------------------
 * 사장님이 시안 다섯 가지 중 B안을 고르셨다. 세 반 모두 같은 모양이다.
 *  · 맨 위 '나의 진도' — 단계를 징검다리로: 승급 완료(초록 체크) · 지금 단계(보라) ·
 *    잠긴 단계(자물쇠). 그 아래 '○○ 준비 3 / 20' 목표와 통과 기준 안내.
 *  · 지문 유형 · 연습 단계는 단추 묶음(고른 쪽은 보라로 채움), 검색은 그 오른쪽에.
 *  · 자료 줄은 카드처럼 띄우고 맨 앞에 통과 / 다시 도전 / 미학습 표시.
 *  · 최근 학습 기록은 시간 순서 선(타임라인)으로.
 *  · 아래 '바로 시작' 바는 짙은 남색으로 눈에 띄게.
 * intermediate.css 의 'body.studyroom-reference-final …' 규칙 위에 덮어 쓰므로
 * 이 화면의 칸 id(#materialLibraryScreen)를 붙여 더 구체적으로 적는다.
 * ===================================================================== */

/* ── 나의 진도 (단계 사다리) ───────────────────────────── */
/* 단계가 여섯 개인 중급반은 휴대폰에서 사다리가 화면보다 넓다. 칸이 화면 밖으로 밀어내지 않고
   사다리만 옆으로 넘겨 보이게, 바깥 칸들이 내용 폭만큼 늘어나지 않도록 묶는다. */
body.studyroom-reference-final #materialLibraryScreen.material-library-redesign { grid-template-columns: minmax(0, 1fr); }
body.studyroom-reference-final #roomLadderCard {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 24px 28px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--card);
  box-shadow: var(--shadow-card);
}
#roomLadderCard .room-ladder-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 16px;
}
#roomLadderCard .room-ladder-head h3 {
  margin: 0;
  color: var(--ink);
  font-size: 1.1875rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}
#roomLadderCard .room-ladder-hint {
  margin: 0;
  color: #7d8696;
  font-size: 0.875rem;
}
body.studyroom-reference-final #roomLadderCard #levelList.room-ladder {
  display: flex;
  align-items: flex-start;
  gap: 0;
  min-width: 0;
  overflow-x: auto;
  padding: 6px 4px 4px;
}
#roomLadderCard .room-step-wrap {
  flex: 1 1 0;
  min-width: 96px;
  display: flex;
  align-items: flex-start;
}
#roomLadderCard .room-step-wrap:last-child { flex: 0 0 auto; }
body.studyroom-reference-final #roomLadderCard .level-btn.room-step,
body.studyroom-reference-final #roomLadderCard .level-btn.room-step:hover,
body.studyroom-reference-final #roomLadderCard .level-btn.room-step.active,
body.studyroom-reference-final #roomLadderCard .level-btn.room-step.locked {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  width: auto;
  min-width: 88px;
  min-height: 0;
  padding: 0;
  border: 0;
  border-radius: 12px;
  background: transparent;
  box-shadow: none;
  color: inherit;
  cursor: pointer;
}
body.studyroom-reference-final #roomLadderCard .level-btn.room-step.locked { cursor: not-allowed; }
#roomLadderCard .level-btn.room-step:focus-visible { outline: 3px solid #b9adf8; outline-offset: 4px; }
#roomLadderCard .room-step-dot {
  display: flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  width: 48px;
  height: 48px;
  border: 2px solid #d4cef0;
  border-radius: 999px;
  background: #fff;
  color: #4529ce;
  font-size: 0.9375rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  transition: transform .15s ease;
}
#roomLadderCard .room-step:not(.locked):hover .room-step-dot { transform: translateY(-2px); }
#roomLadderCard .room-step-dot svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}
#roomLadderCard .room-step.passed .room-step-dot { border-color: #15803d; background: #edf7f2; color: #15803d; }
#roomLadderCard .room-step.locked .room-step-dot { border: 2px dashed #d0d5dd; background: #f2f3f7; color: #98a2b3; }
#roomLadderCard .room-step.locked .room-step-dot svg { width: 20px; height: 20px; stroke-width: 2; }
#roomLadderCard .room-step.active .room-step-dot {
  width: 56px;
  height: 56px;
  border: 2px solid #5b3df0;
  background: #5b3df0;
  color: #fff;
  box-shadow: 0 0 0 6px #efecfe;
}
#roomLadderCard .room-step strong { color: var(--ink); font-size: 1rem; font-weight: 800; }
#roomLadderCard .room-step.locked strong { color: #98a2b3; }
#roomLadderCard .room-step.active strong { color: #4529ce; }
/* intermediate.css 의 '.level-btn small { display: none }' 을 되살린다 — 사다리는 상태 글이 있어야 한다. */
#roomLadderCard .room-step small {
  display: block;
  color: #5b3df0;
  font-size: 0.8125rem;
  font-weight: 700;
  text-align: center;
  word-break: keep-all;
}
#roomLadderCard .room-step.passed small { color: #15803d; }
#roomLadderCard .room-step.locked small { color: #98a2b3; font-weight: 500; }
#roomLadderCard .room-step.active small { color: #5b3df0; font-weight: 700; }
#roomLadderCard .room-step-line {
  flex: 1 1 auto;
  min-width: 12px;
  height: 3px;
  margin-top: 26px;
  border-radius: 999px;
  background: #e2e5ee;
}
#roomLadderCard .room-step-wrap:has(.room-step.active) .room-step-line { margin-top: 30px; }
#roomLadderCard .room-step-line.is-done { background: #15803d; }

#roomLadderCard .room-ladder-foot { display: flex; flex-wrap: wrap; gap: 16px; }
body.studyroom-reference-final #roomLadderCard .selected-goal-summary {
  flex: 1 1 360px;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 16px 18px;
  border: 1px solid #e7e2fb;
  border-radius: 14px;
  background: #faf9ff;
}
body.studyroom-reference-final #roomLadderCard .selected-goal-summary[hidden] { display: none; }
body.studyroom-reference-final #roomLadderCard .selected-goal-head { align-items: baseline; }
body.studyroom-reference-final #roomLadderCard .selected-goal-head strong { font-size: 1rem; }
body.studyroom-reference-final #roomLadderCard .selected-goal-head b { color: #4529ce; font-size: 1.375rem; }
body.studyroom-reference-final #roomLadderCard #recommendationGoalText { color: #475467; font-size: 0.875rem; }
body.studyroom-reference-final #roomLadderCard .goal-progress-track { height: 10px; margin: 0; background: #e7e2fb; }
body.studyroom-reference-final #roomLadderCard .goal-progress-info { color: #7d8696; font-size: 0.8125rem; }
#roomLadderCard .room-pass-slot { flex: 1 1 300px; min-width: 0; display: flex; }
#roomLadderCard .room-pass-slot:empty { display: none; }
#roomLadderCard .room-pass-slot .fresh-test-banner {
  flex: 1 1 auto;
  margin: 0;
  padding: 16px 18px;
  border: 1px solid #f3e3bd;
  border-radius: 14px;
  background: #fdf7ea;
  color: #6b4e10;
  font-size: 0.9375rem;
  line-height: 1.55;
}
#roomLadderCard .room-pass-slot .fresh-test-banner strong { color: #b45309; }

/* ── 직접 자료 고르기: 지문 유형 · 연습 단계는 단추 묶음, 검색은 오른쪽 ─────── */
/* [2026-10-17] 처음엔 밑줄 탭이었는데 사장님이 "고를 수 있다는 게 모르는 사람 눈엔 안 보인다"고
   하셨다. 글자만 있고 밑줄 하나로 고른 것을 알리면 눌러지는 단추로 보이지 않는다.
   회색 받침 위에 단추 두 개를 올리고, 고른 쪽은 보라로 채워 '둘 중 하나를 고르는 곳'임을 드러낸다. */
body.studyroom-reference-final #materialLibraryScreen .material-filter-panel {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 20px;
  padding: 14px 24px;
  border-top: 0;
  border-bottom: 1px solid var(--line);
  background: transparent;
}
body.studyroom-reference-final #materialLibraryScreen .material-filter-panel .filter-row {
  padding: 0;
  border-top: 0;
}
body.studyroom-reference-final #materialLibraryScreen .filter-row-combined {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
}
body.studyroom-reference-final #materialLibraryScreen .filter-control-group {
  display: flex;
  align-items: center;
  gap: 10px;
}
body.studyroom-reference-final #materialLibraryScreen .filter-control-group .filter-label strong {
  color: #475467;
  font-size: 0.875rem;
  font-weight: 700;
  white-space: nowrap;
}
body.studyroom-reference-final #materialLibraryScreen .type-list,
body.studyroom-reference-final #materialLibraryScreen .difficulty-list {
  display: flex;
  gap: 4px;
  padding: 4px;
  border: 1px solid #e2e5ee;
  border-radius: 12px;
  background: #f2f3f7;
}
body.studyroom-reference-final #materialLibraryScreen .type-filter-btn,
body.studyroom-reference-final #materialLibraryScreen .difficulty-filter-btn {
  flex: 0 0 auto;
  min-width: 72px;
  min-height: 40px;
  padding: 0 16px;
  border: 1px solid transparent;
  border-radius: 9px;
  background: transparent;
  box-shadow: none;
  color: #475467;
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
}
body.studyroom-reference-final #materialLibraryScreen .type-filter-btn:hover,
body.studyroom-reference-final #materialLibraryScreen .difficulty-filter-btn:hover {
  border-color: #d4cef0;
  background: #fff;
  color: #4529ce;
}
body.studyroom-reference-final #materialLibraryScreen .type-filter-btn.active,
body.studyroom-reference-final #materialLibraryScreen .difficulty-filter-btn.active {
  border-color: #5b3df0;
  background: #5b3df0;
  color: #fff;
  font-weight: 700;
  box-shadow: 0 2px 6px rgba(91, 61, 240, .25);
}
body.studyroom-reference-final #materialLibraryScreen .search-filter-row {
  flex: 1 1 380px;
  max-width: 480px;
  display: flex;
  gap: 8px;
}
body.studyroom-reference-final #materialLibraryScreen .material-search-wrap { flex: 1 1 auto; min-width: 0; }
body.studyroom-reference-final #materialLibraryScreen #materialSearchInput { height: 42px; border-radius: 12px; }
body.studyroom-reference-final #materialLibraryScreen .search-clear-btn { min-height: 42px; border-radius: 12px; white-space: nowrap; }

/* ── 자료 줄: 카드처럼 띄우고 맨 앞에 상태 표시 ───────────────── */
body.studyroom-reference-final #materialLibraryScreen .material-rows {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 10px 14px 14px;
}
body.studyroom-reference-final #materialLibraryScreen .material-table-head,
body.studyroom-reference-final #materialLibraryScreen .material-row {
  grid-template-columns: 82px minmax(130px, 1.4fr) minmax(48px, .45fr) minmax(66px, .55fr) minmax(78px, .6fr) minmax(74px, .7fr) minmax(196px, .95fr);
  gap: 12px;
}
body.studyroom-reference-final #materialLibraryScreen .material-table-head {
  padding: 10px 30px;
  border-top: 1px solid var(--line);
  border-bottom: 0;
  background: transparent;
}
body.studyroom-reference-final #materialLibraryScreen .material-table-head .col-title { grid-column: span 2; }
body.studyroom-reference-final #materialLibraryScreen .material-row,
body.studyroom-reference-final #materialLibraryScreen .material-row + .material-row {
  padding: 14px 16px;
  border: 1px solid #eef0f5;
  border-radius: 14px;
  background: #fff;
}
body.studyroom-reference-final #materialLibraryScreen .material-row:hover { border-color: #d4cef0; background: #fcfbff; }
body.studyroom-reference-final #materialLibraryScreen .material-row.active {
  border-color: #c9bffb;
  background: #faf9ff;
  box-shadow: none;
}
#materialLibraryScreen .room-row-status {
  justify-self: start;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 30px;
  padding: 0 10px;
  border-radius: 999px;
  font-size: 0.8125rem;
  font-weight: 800;
  white-space: nowrap;
}
#materialLibraryScreen .room-row-status.is-passed { background: #edf7f2; color: #15803d; }
#materialLibraryScreen .room-row-status.is-retry { background: #fdf7ea; color: #b45309; }
#materialLibraryScreen .room-row-status.is-new { background: #f2f3f7; color: #667085; }

/* 1440px 이하 데스크톱: 기존 규칙처럼 '연습 단계' 열을 접는다(자료명 아래 칩에 이미 있다). */
@media (max-width: 1440px) and (min-width: 961px) {
  body.studyroom-reference-final #materialLibraryScreen .material-table-head,
  body.studyroom-reference-final #materialLibraryScreen .material-row {
    grid-template-columns: 78px minmax(120px, 1.4fr) minmax(46px, .45fr) minmax(72px, .55fr) minmax(66px, .6fr) minmax(196px, .9fr);
    gap: 10px;
  }
  body.studyroom-reference-final #materialLibraryScreen .material-table-head { padding-left: 28px; padding-right: 28px; }
}

/* ── 최근 학습 기록: 시간 순서 선 ───────────────────────────── */
body.studyroom-reference-final #materialLibraryScreen .recent-history-list:has(.recent-history-item) {
  margin: 4px 22px 0 30px;
  border-left: 2px solid #ececf3;
}
body.studyroom-reference-final #materialLibraryScreen .recent-history-list .recent-history-item {
  position: relative;
  padding: 12px 0 16px 18px;
}
body.studyroom-reference-final #materialLibraryScreen .recent-history-list .recent-history-item + .recent-history-item { border-top: 0; }
#materialLibraryScreen .recent-history-list .recent-history-item::before {
  content: '';
  position: absolute;
  left: -8px;
  top: 16px;
  box-sizing: border-box;
  width: 14px;
  height: 14px;
  border: 3px solid #fff;
  border-radius: 999px;
  background: #5b3df0;
}
#materialLibraryScreen .recent-history-list .recent-history-item.is-excluded::before { background: #98a2b3; }

/* ── 아래 '바로 시작' 바: 짙은 남색 ─────────────────────────── */
body.studyroom-reference-final #materialLibraryScreen .sticky-start-bar {
  border-color: #1d1640;
  background: #1d1640;
  box-shadow: 0 18px 48px rgba(29, 22, 64, .28);
}
body.studyroom-reference-final #materialLibraryScreen .sticky-start-kicker { color: #c9bffb; }
body.studyroom-reference-final #materialLibraryScreen .sticky-start-summary strong { color: #fff; }
body.studyroom-reference-final #materialLibraryScreen .sticky-start-summary p { color: #d9d3fb; }
body.studyroom-reference-final #materialLibraryScreen .sticky-start-btn.secondary {
  border-color: #7a67e0;
  background: transparent;
  color: #fff;
}
body.studyroom-reference-final #materialLibraryScreen .sticky-start-btn.primary {
  border-color: #fff;
  background: #fff;
  color: #4529ce;
}
body.studyroom-reference-final #materialLibraryScreen .sticky-start-close {
  border-color: transparent;
  background: rgba(255, 255, 255, .14);
  color: #fff;
}
body.studyroom-reference-final #materialLibraryScreen .sticky-start-close:hover { background: rgba(255, 255, 255, .26); }

/* ── 좁은 화면 ─────────────────────────────────────────── */
@media (max-width: 960px) {
  body.studyroom-reference-final #roomLadderCard { padding: 20px 18px; }
  /* 휴대폰: '승급실 통과 후 열림' 같은 상태 글이 옆 단계와 붙지 않게 단계 폭을 묶고 두 줄로 접는다.
     단계가 많으면(중급반 6단계) 사다리만 옆으로 넘겨 본다. */
  #roomLadderCard .room-step-wrap { min-width: 104px; }
  body.studyroom-reference-final #roomLadderCard .level-btn.room-step { width: 84px; min-width: 84px; max-width: 84px; }
  #roomLadderCard .room-step small { white-space: normal; line-height: 1.35; }
  #roomLadderCard .room-step-dot { width: 42px; height: 42px; font-size: 0.875rem; }
  #roomLadderCard .room-step.active .room-step-dot { width: 48px; height: 48px; }
  #roomLadderCard .room-step-line { margin-top: 23px; }
  #roomLadderCard .room-step-wrap:has(.room-step.active) .room-step-line { margin-top: 26px; }
  #roomLadderCard .room-step small { font-size: 0.75rem; }
  body.studyroom-reference-final #materialLibraryScreen .material-filter-panel { padding: 0 18px; }
  body.studyroom-reference-final #materialLibraryScreen .search-filter-row { flex-basis: 100%; flex-wrap: wrap; max-width: none; }
  body.studyroom-reference-final #materialLibraryScreen .material-search-wrap { flex-basis: 100%; }
  body.studyroom-reference-final #materialLibraryScreen .search-clear-btn { flex: 1 1 100%; }
  body.studyroom-reference-final #materialLibraryScreen .material-row,
  body.studyroom-reference-final #materialLibraryScreen .material-row + .material-row {
    grid-template-columns: minmax(0, 1fr);
    padding: 14px 16px;
  }
  body.studyroom-reference-final #materialLibraryScreen .material-rows { padding: 10px 12px 12px; }
  body.studyroom-reference-final #materialLibraryScreen .recent-history-list:has(.recent-history-item) { margin-left: 26px; }
}