.lesson-page { background: radial-gradient(circle at 0 0, rgba(160,33,73,.07), transparent 30rem), #fffafb; }
.cm-lesson-shell {
  width: min(1460px, calc(100% - 28px));
  margin: 24px auto 0;
  display: grid;
  grid-template-columns: 292px minmax(0, 1fr) 238px;
  gap: 20px;
  align-items: start;
}
.cm-course-sidebar {
  position: sticky;
  top: calc(var(--header-height) + 14px);
  height: calc(100vh - var(--header-height) - 28px);
  overflow: hidden;
  border-radius: 22px;
  display: flex;
  flex-direction: column;
  background: rgba(255,255,255,.84);
}
.cm-sidebar-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; padding: 17px 17px 10px; }
.cm-sidebar-head h2 { margin: 7px 0 0; color: var(--cm-red-dark); font-size: 1.04rem; line-height: 1.28; font-weight: 670; }
.cm-sidebar-head p { margin: 2px 0 0; color: var(--cm-muted); font-weight: 560; font-size: .84rem; }
.cm-sidebar-close { display: none; width: 38px; height: 38px; border: 0; border-radius: 12px; color: var(--cm-red-dark); background: var(--cm-red-soft); font-size: 1.35rem; cursor: pointer; }
.cm-progress { height: 7px; margin: 0 17px; border-radius: 999px; background: rgba(160,33,73,.11); overflow: hidden; }
.cm-progress span { display: block; height: 100%; background: linear-gradient(90deg, var(--cm-red), var(--cm-red-dark)); border-radius: inherit; }
.cm-progress-label { margin: 8px 17px 10px; color: var(--cm-muted); font-weight: 560; font-size: .83rem; }
.cm-lessons-list { overflow-y: auto; padding: 0 12px 16px; scrollbar-width: thin; scrollbar-color: var(--cm-red) transparent; }
.cm-lesson-link { display: grid; grid-template-columns: 30px 1fr; gap: 10px; align-items: center; min-height: 48px; padding: 8px; border-radius: 14px; color: var(--cm-muted); border: 1px solid transparent; transition: background .16s ease, color .16s ease, box-shadow .16s ease; }
.cm-lesson-link + .cm-lesson-link { margin-top: 5px; }
.cm-lesson-link span { width: 30px; height: 30px; display: grid; place-items: center; border-radius: 10px; background: rgba(160,33,73,.1); color: var(--cm-red-dark); font-weight: 680; font-size: .83rem; }
.cm-lesson-link strong { font-size: .87rem; line-height: 1.25; font-weight: 570; }
.cm-lesson-link em { grid-column: 2; font-size: .68rem; color: var(--cm-red); font-style: normal; font-weight: 650; }
.cm-lesson-link:hover { background: var(--cm-red-soft); color: var(--cm-red-dark); }
.cm-lesson-link.is-active { background: linear-gradient(135deg, var(--cm-red), var(--cm-red-dark)); color: #fff; box-shadow: 0 12px 26px rgba(160,33,73,.18); }
.cm-lesson-link.is-active span { background: rgba(255,255,255,.22); color: #fff; }
.cm-lesson-link.is-active em { color: rgba(255,255,255,.86); }
.cm-lesson-link.is-muted:not(.is-active) { opacity: .82; }

.cm-lesson-main {
  border-radius: 26px;
  padding: clamp(20px, 3.4vw, 38px);
  background: rgba(255,255,255,.92);
  min-width: 0;
  border: 1px solid var(--cm-border);
  box-shadow: var(--cm-shadow-soft);
}
.cm-lesson-topline { display: flex; justify-content: space-between; align-items: center; gap: 12px; color: var(--cm-muted); font-weight: 560; font-size: .9rem; }
.cm-lesson-main h1 { font-size: clamp(1.72rem, 3vw, 2.62rem); line-height: 1.12; letter-spacing: -.03em; color: var(--cm-red-dark); margin: 15px 0 17px; font-weight: 670; }
.cm-lesson-content { font-size: .99rem; }
.lesson-section { padding: 21px 0; border-top: 1px solid rgba(160,33,73,.11); }
.lesson-section:first-child { border-top: 0; }
.lesson-section h2 { color: var(--cm-red-dark); font-size: clamp(1.22rem, 2vw, 1.58rem); line-height: 1.2; margin: 0 0 10px; font-weight: 660; }
.lesson-section h3 { color: var(--cm-red); margin: 17px 0 8px; font-size: 1.02rem; font-weight: 650; }
.lesson-section p,
.lesson-section li { color: #4d424a; }
.lesson-section li + li { margin-top: 5px; }
.lesson-section blockquote { margin: 20px 0; padding: 16px 18px; border-left: 4px solid var(--cm-red); background: var(--cm-red-soft); border-radius: 14px; color: var(--cm-red-dark); font-weight: 560; }
.cm-table-wrap { overflow-x: auto; border-radius: 16px; border: 1px solid var(--cm-border); }
table { width: 100%; border-collapse: collapse; background: #fff; }
th, td { text-align: left; padding: 11px 12px; border-bottom: 1px solid var(--cm-border); }
th { color: var(--cm-red-dark); background: var(--cm-red-soft); font-weight: 670; }
.cm-content-ad { display: grid; gap: 4px; margin: 21px 0; padding: 17px; border-radius: 18px; border: 1px dashed rgba(160,33,73,.32); background: linear-gradient(135deg, rgba(251,237,242,.7), rgba(255,255,255,.9)); color: var(--cm-muted); text-align: center; }
.cm-content-ad span,
.cm-ad-box span { color: var(--cm-red); font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; }
.cm-content-ad strong,
.cm-ad-box strong { color: var(--cm-red-dark); font-size: .99rem; font-weight: 670; }
.cm-content-ad p { margin: 0; }
.cm-ad-sidebar { position: sticky; top: calc(var(--header-height) + 14px); display: grid; gap: 15px; }
.cm-ad-box { border-radius: 20px; padding: 17px; background: rgba(255,255,255,.84); border: 1px solid var(--cm-border); box-shadow: var(--cm-shadow-soft); }
.cm-ad-box p { color: var(--cm-muted); font-size: .89rem; }
.cm-ad-box a { display: inline-flex; margin-top: 7px; color: var(--cm-red-dark); font-weight: 650; }
.cm-question-box,
.cm-caremedox-cta { border-radius: 22px; padding: 22px; margin-top: 26px; background: linear-gradient(135deg, rgba(255,255,255,.9), rgba(251,237,242,.78)); border: 1px solid var(--cm-border); }
.cm-question-box h2,
.cm-caremedox-cta h2 { margin-top: 0; color: var(--cm-red-dark); font-size: 1.28rem; font-weight: 660; }
.cm-caremedox-cta span { color: var(--cm-red); font-weight: 650; }
.cm-badge { display: inline-flex; padding: 7px 11px; border-radius: 999px; background: var(--cm-red-soft); color: var(--cm-red-dark); font-weight: 610; font-size: .83rem; }
.cm-sidebar-backdrop { display: none; }

@media (max-width: 1160px) {
  .cm-lesson-shell { grid-template-columns: 286px minmax(0, 1fr); }
  .cm-ad-sidebar { grid-column: 2; position: static; grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .cm-lesson-shell { display: block; width: min(100% - 22px, 900px); margin-top: 18px; }
  .cm-course-sidebar { position: fixed; inset: 0 auto 0 0; width: min(88vw, 340px); height: 100dvh; top: 0; z-index: 1100; border-radius: 0 24px 24px 0; transform: translateX(-105%); transition: transform .22s ease; }
  body.sidebar-open .cm-course-sidebar { transform: translateX(0); }
  .cm-sidebar-close { display: inline-grid; place-items: center; }
  .cm-sidebar-backdrop { position: fixed; inset: 0; background: rgba(33,18,26,.34); z-index: 1090; }
  body.sidebar-open .cm-sidebar-backdrop { display: block; }
  .cm-lesson-main { margin-top: 18px; }
  .cm-ad-sidebar { display: grid; grid-template-columns: repeat(2, 1fr); margin: 18px 0; }
}
@media (max-width: 700px) {
  .cm-ad-sidebar { display: none; }
  .cm-lesson-main { padding: 18px; border-radius: 21px; }
  .cm-lesson-topline { align-items: flex-start; flex-direction: column; }
  .cm-lesson-nav { margin: 12px 0 20px; }
  .cm-lesson-nav a { padding: 8px 12px; font-size: .9rem; }
  .lesson-section { padding: 18px 0; }
}


/* === Final lesson sidebar polish based on provided CM sidebar color direction === */
.cm-course-sidebar {
  background: rgba(255,255,255,.90);
  backdrop-filter: blur(20px) saturate(145%);
  -webkit-backdrop-filter: blur(20px) saturate(145%);
  border: 1px solid rgba(206,44,77,.13);
  box-shadow: 0 18px 44px rgba(160,33,73,.10);
  transition: transform .46s cubic-bezier(.22, 1, .36, 1), box-shadow .3s ease;
}
.cm-sidebar-head {
  align-items: center;
  padding: 18px 18px 12px;
  border-bottom: 1px solid rgba(206,44,77,.10);
}
.cm-sidebar-title-wrap { display: flex; align-items: center; gap: 12px; min-width: 0; }
.cm-sidebar-icon {
  flex: 0 0 42px;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  color: #ce2c4d;
  background: linear-gradient(135deg, rgba(206,44,77,.12), rgba(146,51,234,.10));
  font-size: 1.35rem;
  font-weight: 600;
}
.cm-sidebar-head h2 { margin-top: 5px; font-weight: 650; }
.cm-progress-wrap { padding: 12px 18px 13px; }
.cm-progress-row { display: flex; justify-content: space-between; align-items: center; gap: 12px; font-size: .8rem; color: #76616d; margin-bottom: 7px; }
.cm-progress-row strong { color: #821B3B; font-weight: 680; }
.cm-progress { margin: 0; height: 8px; background: rgba(168,85,247,.09); }
.cm-progress span { background: linear-gradient(90deg, #ce2c4d, #9233eacb); transition: width .7s ease-out; }
.cm-progress-label { display: none; }
.cm-lessons-list { padding: 12px; }
.cm-lessons-list::-webkit-scrollbar { width: 6px; }
.cm-lessons-list::-webkit-scrollbar-track { background: transparent; margin: 8px 0; }
.cm-lessons-list::-webkit-scrollbar-thumb { background: linear-gradient(180deg, #ce2c4d, #ec4899); border-radius: 10px; }
.cm-lesson-link {
  min-height: 46px;
  border-radius: 14px;
  transition: background .22s ease, color .22s ease, box-shadow .22s ease, transform .22s ease, border-color .22s ease;
}
.cm-lesson-link:hover { background: rgba(168,85,247,.055); color: #2b1e27; transform: translateX(2px); border-color: rgba(206,44,77,.10); }
.cm-lesson-link span { background: rgba(168,85,247,.10); color: #ce2c4d; }
.cm-lesson-link:hover span { background: rgba(168,85,247,.18); }
.cm-lesson-link.is-active {
  background: linear-gradient(135deg, #ce2c4d, #9233eacb);
  color: #fff;
  box-shadow: 0 10px 24px rgba(168,85,247,.22);
  transform: scale(1.018);
}
.cm-lesson-link.is-active::after {
  content: "";
  position: absolute;
  right: 12px;
  top: 50%;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: #fff;
  transform: translateY(-50%);
  animation: cmPulseDot 2s infinite;
}
.cm-sidebar-current {
  padding: 15px 16px;
  border-top: 1px solid rgba(206,44,77,.10);
  background: linear-gradient(to top, rgba(255,255,255,.86), rgba(255,255,255,.48));
  text-align: center;
}
.cm-sidebar-current small { display: block; color: #7c6671; font-size: .76rem; margin-bottom: 3px; }
.cm-sidebar-current strong { display: block; color: #ce2c4d; font-size: .86rem; font-weight: 620; line-height: 1.25; }
.cm-sidebar-close:hover { background: rgba(168,85,247,.13); transform: rotate(90deg); }
.cm-sidebar-backdrop {
  opacity: 0;
  pointer-events: none;
  backdrop-filter: blur(0px);
  -webkit-backdrop-filter: blur(0px);
  transition: opacity .32s ease, backdrop-filter .32s ease;
}
body.sidebar-open .cm-sidebar-backdrop {
  opacity: 1;
  pointer-events: auto;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}
body.sidebar-open { overflow: hidden; }
.cm-question-box { border-style: dashed; background: linear-gradient(135deg, rgba(255,255,255,.9), rgba(251,237,242,.64)); }
.cm-question-box .cm-kicker { margin-bottom: 10px; }
@keyframes cmPulseDot { 0%, 100% { opacity: 1; transform: translateY(-50%) scale(1); } 50% { opacity: .52; transform: translateY(-50%) scale(.82); } }
@media (max-width: 900px) {
  .cm-course-sidebar {
    width: min(88vw, 330px);
    transform: translateX(-108%);
    will-change: transform;
  }
  body.sidebar-open .cm-course-sidebar { transform: translateX(0); }
  .cm-sidebar-backdrop { display: block; background: rgba(33,18,26,.30); }
}