/* Rememios — Czech A1 course page */
.course-page {
  max-width: 1120px;
  margin: 0 auto;
  padding: 48px 24px 70px;
}
.course-hero {
  padding: 34px 0 42px;
}
.course-hero h1 {
  margin: 0 0 14px;
  font-size: clamp(3rem, 7vw, 5.2rem);
  line-height: 1;
  letter-spacing: -.045em;
}
.course-hero p {
  max-width: 720px;
  margin: 0;
  color: var(--muted);
  font-size: 1.2rem;
}
.course-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}
.course-meta span {
  padding: 7px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255,255,255,.72);
  color: var(--muted);
  font-size: .92rem;
  font-weight: 700;
}
.course-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 28px;
  align-items: start;
}
.course-content {
  min-width: 0;
}
.course-intro {
  margin-bottom: 18px;
}
.course-intro h2 {
  margin: 0 0 5px;
  font-size: 1.5rem;
}
.course-intro p {
  margin: 0;
  color: var(--muted);
}
.course-section {
  margin: 12px 0;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: rgba(255,255,255,.9);
  box-shadow: 0 12px 35px rgba(44,18,130,.045);
}
.course-section summary {
  display: grid;
  grid-template-columns: 42px minmax(0,1fr) 24px;
  gap: 14px;
  align-items: center;
  padding: 18px 20px;
  cursor: pointer;
  list-style: none;
}
.course-section summary::-webkit-details-marker { display: none; }
.section-index, .lesson-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-weight: 800;
}
.section-index {
  width: 38px;
  height: 38px;
  background: #f0ecff;
  color: var(--purple);
}
.section-heading {
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.section-heading strong {
  font-size: 1.06rem;
}
.section-heading span {
  margin-top: 2px;
  color: var(--muted);
  font-size: .9rem;
}
.section-chevron {
  color: var(--muted);
  font-size: 1.1rem;
  transition: transform .18s ease;
}
.course-section[open] .section-chevron { transform: rotate(180deg); }
.lesson-list {
  border-top: 1px solid var(--border);
}
.lesson-row {
  display: grid;
  grid-template-columns: 38px minmax(0,1fr) 28px;
  gap: 14px;
  align-items: center;
  min-height: 62px;
  padding: 10px 20px;
  color: var(--text) !important;
  text-decoration: none;
  border-bottom: 1px solid #eeeaf8;
}
.lesson-row:last-child { border-bottom: 0; }
.lesson-row:hover { background: #faf9ff; }
.lesson-number {
  width: 34px;
  height: 34px;
  background: var(--bg);
  color: var(--muted);
  font-size: .82rem;
}
.lesson-title {
  overflow: hidden;
  text-overflow: ellipsis;
}
.lesson-arrow {
  color: var(--purple);
  font-weight: 800;
  font-size: 1.15rem;
}
.course-sidebar {
  position: sticky;
  top: 20px;
}
.info-card, .principle-card {
  margin-bottom: 18px;
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: rgba(255,255,255,.9);
  box-shadow: 0 14px 40px rgba(44,18,130,.05);
}
.info-card h2 {
  margin: 0 0 16px;
  font-size: 1.15rem;
}
.info-card ul {
  margin: 0;
  padding: 0;
  list-style: none;
}
.info-card li {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 10px 0;
  border-bottom: 1px solid #eeeaf8;
  font-size: .92rem;
}
.info-card li:last-child { border-bottom: 0; }
.info-card li span {
  color: var(--muted);
  text-align: right;
}
.principle-card {
  background: linear-gradient(145deg, #f5f2ff, #fff);
}
.principle-card strong {
  color: var(--purple);
}
.principle-card p {
  margin: 8px 0 12px;
  color: var(--muted);
}
.principle-card span {
  font-size: .9rem;
  font-weight: 800;
}
.language-menu a {
  display: block;
  padding: 9px 10px;
  border-radius: 8px;
  color: var(--text);
  text-decoration: none;
}
.language-menu a:hover { background: var(--bg); color: var(--purple); }

@media (max-width: 820px) {
  .course-layout { grid-template-columns: 1fr; }
  .course-sidebar { position: static; }
}
@media (max-width: 650px) {
  .course-page { padding-top: 24px; }
  .course-hero { padding-top: 20px; }
  .course-section summary, .lesson-row { padding-left: 14px; padding-right: 14px; }
  .course-sidebar { display: none; }
}


/* Course v2 — more visual, compact and action-oriented */
.course-page { max-width: 1300px; padding-top: 28px; }
.course-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(300px, .85fr);
  gap: 42px;
  align-items: center;
  padding: 28px 0 36px;
}
.course-hero h1 { font-size: clamp(3rem, 6vw, 4.8rem); }
.course-hero-image {
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: #fff;
  box-shadow: 0 18px 55px rgba(44,18,130,.09);
}
.course-hero-image img {
  display: block;
  width: 100%;
  aspect-ratio: 314 / 232;
  object-fit: cover;
}
.course-start-button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 48px;
  margin-top: 22px;
  padding: 10px 18px;
  border-radius: 13px;
  color: #fff !important;
  background: var(--gradient);
  box-shadow: 0 10px 24px rgba(44,18,130,.16);
  font-weight: 800;
  text-decoration: none;
}
.course-start-button:hover { transform: translateY(-1px); }
.start-play {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: rgba(255,255,255,.18);
  font-size: .65rem;
}
.course-layout { grid-template-columns: minmax(0, 1fr) 280px; gap: 24px; }
.course-sidebar { top: 16px; }
.info-card, .principle-card { padding: 19px; }
.lesson-row {
  grid-template-columns: 38px minmax(0,1fr) 64px;
}
.lesson-actions {
  display: inline-flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
}
.lesson-play {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #f0ecff;
  color: var(--purple);
  font-size: .62rem;
  transition: transform .15s ease, background .15s ease;
}
.lesson-chevron {
  color: var(--muted);
  font-size: 1.45rem;
  line-height: 1;
}
.lesson-row:hover .lesson-play {
  transform: scale(1.06);
  background: #e6dfff;
}
.checkpoint .lesson-number {
  background: #eee8ff;
  color: var(--purple);
}
.checkpoint-badge {
  display: inline-block;
  margin-right: 8px;
  padding: 3px 7px;
  border-radius: 999px;
  background: #eee8ff;
  color: var(--purple);
  font-size: .68rem;
  font-weight: 850;
  letter-spacing: .02em;
  text-transform: uppercase;
}
@media (max-width: 900px) {
  .course-hero { grid-template-columns: 1fr; gap: 24px; }
  .course-hero-image { max-width: 620px; }
}
@media (max-width: 650px) {
  .course-hero { padding-top: 10px; }
  .course-start-button { width: 100%; justify-content: center; }
  .lesson-row { grid-template-columns: 36px minmax(0,1fr) 58px; }
}


/* v3 — reuse the exact Rememios Long visual language */
.course-hero-image img {
  aspect-ratio: 16 / 9;
  object-fit: cover;
  object-position: center;
}


/* v4 polish */
.lesson-row {
  grid-template-columns: 38px minmax(0,1fr) 42px;
}
.lesson-actions {
  justify-content: flex-end;
  gap: 0;
}
.lesson-go {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: #f0ecff;
  color: var(--purple);
  font-size: 1rem;
  font-weight: 850;
  transition: transform .15s ease, background .15s ease;
}
.lesson-row:hover .lesson-go {
  transform: translateX(2px);
  background: #e6dfff;
}
.learn-card h2 { margin-bottom: 13px; }
.learn-list {
  display: grid;
  gap: 12px;
}
.info-card .learn-list li {
  display: grid;
  grid-template-columns: 24px 1fr;
  justify-content: initial;
  align-items: start;
  gap: 9px;
  padding: 0;
  border: 0;
  color: var(--muted);
  line-height: 1.4;
}
.learn-check {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #f0ecff;
  color: var(--purple);
  font-weight: 900;
  font-size: .78rem;
}
@media (max-width: 650px) {
  .lesson-row { grid-template-columns: 36px minmax(0,1fr) 38px; }
}


/* v5 — expanded course model */
.hero-lead {
  margin: 0;
  font-size: 1.22rem;
  font-weight: 650;
  color: var(--text);
}
.hero-detail {
  margin: 5px 0 0 !important;
  max-width: 620px;
  font-size: .98rem !important;
  line-height: 1.5;
  color: var(--muted);
}
.section-heading .section-description {
  margin-top: 4px;
  max-width: 760px;
  color: var(--muted);
  font-size: .9rem;
  font-weight: 450;
  line-height: 1.35;
}
.section-heading .section-count {
  margin-top: 5px;
  color: var(--muted);
  font-size: .82rem;
}
.lesson-row {
  grid-template-columns: 38px minmax(180px,.9fr) minmax(240px,1.15fr) 42px;
}
.lesson-title {
  min-width: 0;
  font-weight: 650;
}
.lesson-description {
  min-width: 0;
  color: var(--muted);
  font-size: .91rem;
  line-height: 1.35;
}
.about-course-list {
  display: grid;
  gap: 13px;
}
.info-card .about-course-list li {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 9px;
  align-items: center;
  justify-content: initial;
  padding: 0;
  border: 0;
  color: var(--muted);
  line-height: 1.35;
}
.info-card .about-course-list li span {
  text-align: left;
}
.about-icon {
  color: var(--purple) !important;
  font-weight: 900;
  text-align: center !important;
}
@media (max-width: 800px) {
  .lesson-row {
    grid-template-columns: 36px minmax(0,1fr) 38px;
  }
  .lesson-description {
    grid-column: 2;
    margin-top: -5px;
    padding-bottom: 4px;
    font-size: .84rem;
  }
}


/* v6 — final course page polish */
.course-hero-image {
  border-radius: 20px;
}
.course-hero-image img {
  border-radius: inherit;
}

.course-format-list {
  display: grid;
  gap: 15px;
}
.info-card .course-format-list li {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 9px;
  align-items: center;
  justify-content: initial;
  padding: 0;
  border: 0;
  color: var(--muted);
  line-height: 1.35;
}
.info-card .course-format-list li span {
  text-align: left;
}
.format-icon {
  color: var(--purple) !important;
  font-weight: 900;
  text-align: center !important;
}


/* v7 — align site header with the course content container */
body > header {
  width: auto;
  max-width: 1300px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
  box-sizing: border-box;
}

@media (max-width: 650px) {
  body > header {
    padding-left: 24px;
    padding-right: 24px;
  }
}


/* v8 — Rememios Light Prague visual */
.course-hero-image {
  overflow: hidden;
  border-radius: 20px;
}
.course-hero-image img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: center;
  border-radius: inherit;
}


/* Generated availability state */
.lesson-row.lesson-unavailable { opacity: .56; cursor: default; }
.lesson-row.lesson-unavailable .lesson-go { visibility: hidden; }
.lesson-row.lesson-unavailable:hover { transform: none; }


/* v9 — mobile course layout fix */
@media (max-width: 800px) {
  .course-layout {
    display: block;
  }

  .course-content {
    width: 100%;
    min-width: 0;
  }

  .course-intro {
    width: 100%;
  }

  .course-intro p {
    max-width: none;
  }

  .course-section {
    width: 100%;
    min-width: 0;
  }

  .lesson-row {
    grid-template-columns: 36px minmax(0, 1fr) 38px;
    width: 100%;
    min-width: 0;
    box-sizing: border-box;
  }

  .lesson-title,
  .lesson-description {
    min-width: 0;
    overflow-wrap: anywhere;
  }

  .lesson-description {
    grid-column: 2 / 3;
  }

  .lesson-row .lesson-go,
  .lesson-row .lesson-coming-soon {
    grid-column: 3;
    grid-row: 1 / span 2;
    align-self: center;
    justify-self: end;
  }
}

@media (max-width: 650px) {
  .course-page {
    width: 100%;
    max-width: none;
    padding: 24px 24px 56px;
    box-sizing: border-box;
  }

  .course-hero {
    width: 100%;
    min-width: 0;
  }

  .course-hero h1 {
    font-size: clamp(2.65rem, 13vw, 3.5rem);
  }

  .course-section summary {
    grid-template-columns: 38px minmax(0, 1fr) 24px;
    gap: 10px;
  }

  .lesson-row {
    gap: 10px;
  }

  .lesson-coming-soon {
    max-width: 76px;
    text-align: right;
    line-height: 1.15;
    font-size: .76rem;
  }
}

/* v10 — course breadcrumbs match lesson pages */
.course-page > .breadcrumbs {
  display: flex;
  gap: 8px;
  align-items: center;
  margin: 10px 0 24px;
  color: var(--muted);
  font-size: .9rem;
}

.course-page > .breadcrumbs a {
  color: var(--muted);
  text-decoration: none;
}

.course-page > .breadcrumbs a:hover {
  color: var(--purple);
}