/*
 * Moleculla online courses: /courses/ and /courses/learn/.
 * Cache-bust: bump ?v= in courses/index.html and courses/learn/index.html after editing.
 */

.m-courses-page {
  --mc-ink: #2f2b2b;
  --mc-taupe: #504a4a;
  --mc-muted: #756d68;
  --mc-sand: #ddb999;
  --mc-brown: #9d8775;
  --mc-cream: #fbfaf3;
  --mc-soft: #f2eee7;
  --mc-line: rgba(80, 74, 74, 0.14);
  background: linear-gradient(180deg, #f4f0ea 0%, #fbfaf3 32rem, #ffffff 100%);
}

.m-courses-page main.m-courses-main {
  margin-top: 0 !important;
}

/* --- My courses -------------------------------------------------------------- */

.m-courses {
  box-sizing: border-box;
  margin: 0 auto;
  max-width: 1120px;
  padding: clamp(2rem, 5vw, 3.5rem) 16px 5rem;
}

.m-courses__title {
  color: var(--mc-ink);
  font-size: clamp(1.75rem, 1.25rem + 1.6vw, 2.5rem);
  font-weight: 400;
  margin: 0 0 clamp(1.5rem, 3vw, 2.5rem);
  text-align: center;
}

.m-courses-loading {
  color: var(--mc-muted);
  padding: 3rem 0;
  text-align: center;
}

.m-course-grid {
  display: grid;
  gap: clamp(1.25rem, 3vw, 2.25rem);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 360px));
  justify-content: center;
}

.m-course-card {
  background: #fff;
  border: 1px solid var(--mc-line);
  border-radius: 14px;
  box-shadow: 0 12px 32px rgba(80, 74, 74, 0.08);
  color: var(--mc-ink);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  text-decoration: none;
  transition: box-shadow 200ms ease, transform 200ms ease;
}

.m-course-card:hover,
.m-course-card:focus-visible {
  box-shadow: 0 18px 44px rgba(80, 74, 74, 0.14);
  transform: translateY(-3px);
}

.m-course-card__media img {
  aspect-ratio: 16 / 10;
  display: block;
  height: auto;
  object-fit: cover;
  width: 100%;
}

.m-course-card__body {
  display: grid;
  gap: 0.6rem;
  padding: 1.15rem 1.35rem 1.5rem;
}

.m-course-card__title {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.35;
}

.m-course-card__meta {
  color: var(--mc-muted);
  font-size: 0.875rem;
}

.m-course-card__bar,
.m-course-progress__bar {
  background: var(--mc-soft);
  border-radius: 999px;
  display: block;
  height: 5px;
  overflow: hidden;
}

.m-course-card__bar > span,
.m-course-progress__bar > span {
  background: var(--mc-sand);
  border-radius: inherit;
  display: block;
  height: 100%;
}

.m-course-card__cta {
  border-bottom: 1px solid currentColor;
  color: var(--mc-taupe);
  font-size: 0.8rem;
  justify-self: start;
  letter-spacing: 0.06em;
  margin-top: 0.35rem;
  text-transform: uppercase;
}

.m-courses-footer {
  color: var(--mc-muted);
  margin: 2.5rem auto 0;
  max-width: 560px;
  text-align: center;
}

.m-courses-footer a,
.m-courses-shop a,
.m-courses-message a,
.m-courses-panel a:not(.m-primary-action):not(.m-courses-button-secondary) {
  color: var(--mc-taupe);
}

.m-courses-more,
.m-courses-resend {
  margin-top: 1.25rem;
  text-align: left;
}

.m-courses-more summary,
.m-courses-resend summary {
  color: var(--mc-taupe);
  cursor: pointer;
  text-decoration: underline;
}

.m-courses-more summary {
  text-align: center;
}

.m-courses-unlock {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr));
}

.m-courses-panel {
  background: #fff;
  border: 1px solid var(--mc-line);
  border-radius: 14px;
  box-shadow: 0 12px 32px rgba(80, 74, 74, 0.06);
  color: var(--mc-ink);
  padding: clamp(1.25rem, 3vw, 2rem);
}

.m-courses-panel h2 {
  color: var(--mc-ink);
  font-size: 1.3rem;
  font-weight: 700;
  margin: 0 0 0.6rem;
}

.m-courses-panel p {
  color: #4f4848;
  line-height: 1.6;
  margin: 0 0 1rem;
}

.m-courses-form {
  display: grid;
  gap: 0.55rem;
  margin-top: 0.75rem;
}

.m-courses-form label {
  color: var(--mc-taupe);
  font-size: 0.9rem;
}

.m-courses-form input {
  background: #fff;
  border: 1px solid rgba(80, 74, 74, 0.32);
  border-radius: 8px;
  box-sizing: border-box;
  color: var(--mc-ink);
  font: inherit;
  font-size: 1rem;
  padding: 0.8rem 1rem;
  width: 100%;
}

.m-courses-form input:focus {
  border-color: var(--mc-taupe);
  outline: 2px solid rgba(221, 185, 153, 0.6);
  outline-offset: 1px;
}

.m-courses-code-input {
  font-family: ui-monospace, Menlo, Consolas, monospace !important;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.m-courses-form .m-primary-action {
  margin-top: 0.35rem;
}

.m-courses-form__status {
  color: var(--mc-muted);
  font-size: 0.9rem;
  margin: 0 !important;
  min-height: 1.2em;
}

.m-courses-button-secondary {
  align-items: center;
  background: transparent;
  border: 1px solid var(--mc-taupe);
  border-radius: 999px;
  box-sizing: border-box;
  color: var(--mc-taupe);
  cursor: pointer;
  display: inline-flex;
  font: inherit;
  font-size: 0.875rem;
  justify-content: center;
  letter-spacing: 0;
  min-height: 46px;
  padding: 0.75rem 1.35rem;
  text-decoration: none;
  text-transform: uppercase;
  transition: background-color 160ms ease, color 160ms ease;
}

.m-courses-button-secondary:hover,
.m-courses-button-secondary:focus {
  background: var(--mc-soft);
  color: var(--mc-ink);
}

.m-courses-message {
  background: #fff;
  border: 1px solid var(--mc-line);
  border-left: 4px solid var(--mc-sand);
  border-radius: 10px;
  color: var(--mc-ink);
  margin: 0 auto 1.5rem;
  max-width: 760px;
  padding: 0.9rem 1.15rem;
}

.m-courses-message.is-error {
  border-left-color: #b4574b;
}

.m-courses-message.is-success {
  border-left-color: #6c8a68;
}

.m-courses-shop {
  color: var(--mc-muted);
  margin: 2rem 0 0;
  text-align: center;
}

.m-courses-locked {
  background: #fff;
  border: 1px solid var(--mc-line);
  border-radius: 14px;
  box-sizing: border-box;
  color: var(--mc-ink);
  margin: clamp(2rem, 6vw, 4rem) auto 5rem;
  max-width: 560px;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  text-align: center;
}

.m-courses-locked h1 {
  font-size: 1.6rem;
  font-weight: 700;
  margin: 0 0 0.75rem;
}

.m-courses-locked .m-primary-action {
  width: auto;
}

/* --- Lesson viewer --------------------------------------------------------- */

.m-course-layout {
  align-items: start;
  box-sizing: border-box;
  display: grid;
  gap: clamp(2rem, 4vw, 4.5rem);
  grid-template-columns: minmax(260px, 320px) minmax(0, 1fr);
  margin: 0 auto;
  max-width: 1320px;
  padding: clamp(1.5rem, 3vw, 2.5rem) 24px 5rem;
}

.m-course-mobilebar {
  display: none;
}

.m-course-nav {
  max-height: calc(100vh - 120px);
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 0 0.5rem 1rem 0;
  position: sticky;
  top: 96px;
}

.m-course-back {
  align-items: center;
  color: var(--mc-muted);
  display: inline-flex;
  font-size: 0.95rem;
  gap: 0.55rem;
  text-decoration: none;
}

.m-course-back:hover,
.m-course-back:focus {
  color: var(--mc-ink);
}

.m-course-back--desktop {
  margin-bottom: 1.5rem;
}

.m-course-nav__title {
  color: var(--mc-ink);
  font-size: 1.3rem;
  font-weight: 700;
  line-height: 1.35;
  margin: 0 0 1rem;
}

.m-course-progress {
  display: grid;
  gap: 0.45rem;
  margin-bottom: 1.25rem;
}

.m-course-progress__label {
  color: var(--mc-muted);
  font-size: 0.85rem;
}

.m-course-module {
  border-top: 1px solid var(--mc-line);
}

.m-course-module__toggle {
  align-items: start;
  background: none;
  border: 0;
  color: var(--mc-ink);
  cursor: pointer;
  display: grid;
  font: inherit;
  font-size: 1rem;
  font-weight: 700;
  gap: 0.6rem;
  grid-template-columns: auto minmax(0, 1fr) auto;
  line-height: 1.4;
  padding: 1rem 0.25rem;
  text-align: left;
  width: 100%;
}

.m-course-module__icon {
  font-size: 1.05rem;
  line-height: 1.4;
}

.m-course-module__chevron {
  color: var(--mc-ink);
  margin-top: 0.1rem;
  transform: rotate(180deg);
  transition: transform 180ms ease;
}

.m-course-module.is-open .m-course-module__chevron {
  transform: none;
}

.m-course-lessons {
  list-style: none;
  margin: 0 0 0.85rem;
  padding: 0;
}

.m-course-lessons li {
  margin: 0;
}

.m-course-lesson {
  align-items: start;
  border-radius: 8px;
  color: var(--mc-muted);
  display: grid;
  font-size: 0.95rem;
  font-weight: 400;
  gap: 0.8rem;
  grid-template-columns: 20px minmax(0, 1fr);
  line-height: 1.45;
  padding: 0.8rem 0.9rem;
  text-decoration: none;
  transition: background-color 140ms ease, color 140ms ease;
}

.m-course-lesson:hover,
.m-course-lesson:focus-visible {
  background: rgba(80, 74, 74, 0.05);
  color: var(--mc-ink);
}

.m-course-lesson.is-active {
  background: #ebe6df;
  color: var(--mc-ink);
}

.m-course-lesson__check {
  border: 1.5px solid #b5aca5;
  border-radius: 50%;
  box-sizing: border-box;
  height: 18px;
  margin-top: 0.1rem;
  position: relative;
  width: 18px;
}

.m-course-lesson.is-active .m-course-lesson__check {
  border-color: var(--mc-ink);
}

.m-course-lesson.is-complete .m-course-lesson__check {
  background: var(--mc-taupe);
  border-color: var(--mc-taupe);
}

.m-course-lesson.is-complete .m-course-lesson__check::after {
  border: solid #fff;
  border-width: 0 2px 2px 0;
  content: "";
  height: 8px;
  left: 5px;
  position: absolute;
  top: 2px;
  transform: rotate(45deg);
  width: 4px;
}

.m-course-content {
  color: var(--mc-ink);
  min-width: 0;
  outline: none;
}

.m-course-content__kicker {
  color: var(--mc-brown);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  margin: 0 0 0.6rem;
  text-transform: uppercase;
}

.m-course-content__title {
  color: var(--mc-ink);
  font-size: clamp(1.6rem, 1.15rem + 1.5vw, 2.3rem);
  font-weight: 700;
  line-height: 1.25;
  margin: 0 0 1.5rem;
}

.m-lesson-body {
  color: #3a3434;
  font-size: 1.05rem;
  font-weight: 400;
  line-height: 1.75;
  max-width: 820px;
}

.m-lesson-body strong,
.m-lesson-body b {
  font-weight: 700;
}

.m-lesson-body p {
  margin: 0 0 1.1rem;
}

.m-lesson-body h3 {
  color: var(--mc-ink);
  font-size: 1.3rem;
  font-weight: 700;
  line-height: 1.35;
  margin: 2.2rem 0 0.8rem;
}

.m-lesson-body h4 {
  color: var(--mc-ink);
  font-size: 1.08rem;
  font-weight: 700;
  line-height: 1.4;
  margin: 1.6rem 0 0.5rem;
}

.m-lesson-body ul,
.m-lesson-body ol {
  margin: 0 0 1.25rem;
  padding-left: 1.35rem;
}

.m-lesson-body li {
  margin: 0.4rem 0;
}

.m-lesson-body ul > li {
  list-style: disc;
}

.m-lesson-body ol > li {
  list-style: decimal;
}

.m-lesson-body ol.m-lesson-steps > li {
  list-style: none;
}

.m-lesson-body a {
  color: var(--mc-taupe);
}

.m-lesson-lead {
  font-size: 1.12rem;
}

.m-lesson-figure {
  margin: 0.5rem 0 2rem;
}

.m-lesson-figure img {
  border-radius: 12px;
  display: block;
  height: auto;
  max-height: 480px;
  object-fit: cover;
  width: 100%;
}

.m-lesson-figure--diagram img {
  background: #fff;
  border: 1px solid var(--mc-line);
  max-height: none;
  max-width: 620px;
  object-fit: contain;
}

.m-lesson-figure--wide img {
  max-height: none;
  object-fit: contain;
}

.m-lesson-figure figcaption {
  color: var(--mc-muted);
  font-size: 0.9rem;
  margin-top: 0.6rem;
}

.m-lesson-tip,
.m-lesson-note {
  border-radius: 12px;
  margin: 1.75rem 0;
  padding: 1rem 1.25rem;
}

.m-lesson-tip p,
.m-lesson-note p {
  margin: 0;
}

.m-lesson-tip {
  background: #f6efe6;
  border-left: 4px solid var(--mc-sand);
}

.m-lesson-note {
  background: #f3f1ef;
  border-left: 4px solid #b5aca5;
  font-size: 0.95rem;
}

.m-lesson-table {
  border-collapse: collapse;
  font-size: 0.95rem;
  line-height: 1.55;
  margin: 1rem 0 1.75rem;
  width: 100%;
}

.m-lesson-table th,
.m-lesson-table td {
  border-bottom: 1px solid var(--mc-line);
  padding: 0.75rem 0.8rem;
  text-align: left;
  vertical-align: top;
}

.m-lesson-table th {
  color: var(--mc-muted);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.m-lesson-table tbody tr:nth-child(odd) {
  background: rgba(242, 238, 231, 0.55);
}

.m-lesson-steps {
  counter-reset: m-step;
  list-style: none;
  padding-left: 0 !important;
}

.m-lesson-steps li {
  counter-increment: m-step;
  margin: 0 0 1rem;
  padding-left: 2.85rem;
  position: relative;
}

.m-lesson-steps li::before {
  align-items: center;
  background: var(--mc-soft);
  border-radius: 50%;
  color: var(--mc-taupe);
  content: counter(m-step);
  display: flex;
  font-size: 0.9rem;
  font-weight: 700;
  height: 1.9rem;
  justify-content: center;
  left: 0;
  position: absolute;
  top: 0.05rem;
  width: 1.9rem;
}

.m-lesson-sources {
  font-size: 0.9rem;
}

.m-lesson-signoff {
  color: var(--mc-muted);
  font-style: italic;
}

.m-course-finished {
  background: #f6efe6;
  border-left: 4px solid var(--mc-sand);
  border-radius: 12px;
  margin: 2rem 0 0;
  max-width: 820px;
  padding: 1rem 1.25rem;
}

.m-course-finished p {
  margin: 0;
}

.m-course-pager {
  align-items: center;
  border-top: 1px solid var(--mc-line);
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  margin-top: 3rem;
  max-width: 820px;
  padding-top: 1.5rem;
}

.m-course-pager__prev {
  color: var(--mc-muted);
  text-decoration: none;
}

.m-course-pager__prev:hover,
.m-course-pager__prev:focus {
  color: var(--mc-ink);
  text-decoration: underline;
}

.m-course-pager .m-primary-action {
  cursor: pointer;
  margin-top: 0;
  width: auto;
}

@media (max-width: 900px) {
  .m-course-layout {
    gap: 1rem;
    grid-template-columns: minmax(0, 1fr);
    padding: 1rem 16px 4rem;
  }

  .m-course-mobilebar {
    align-items: center;
    display: flex;
    gap: 0.75rem;
    justify-content: space-between;
  }

  .m-course-nav-toggle {
    align-items: center;
    background: #fff;
    border: 1px solid var(--mc-line);
    border-radius: 999px;
    color: var(--mc-ink);
    cursor: pointer;
    display: inline-flex;
    font: inherit;
    font-size: 0.9rem;
    gap: 0.5rem;
    padding: 0.55rem 1rem;
  }

  .m-course-nav-toggle span {
    color: var(--mc-muted);
  }

  .m-course-nav {
    background: #fff;
    border: 1px solid var(--mc-line);
    border-radius: 14px;
    display: none;
    max-height: none;
    padding: 1rem;
    position: static;
  }

  .m-course-layout.is-nav-open .m-course-nav {
    display: block;
  }

  .m-course-back--desktop {
    display: none;
  }

  .m-lesson-body {
    font-size: 1rem;
  }

  .m-lesson-table {
    display: block;
    overflow-x: auto;
  }

  .m-course-pager {
    flex-wrap: wrap;
  }

  .m-course-pager .m-primary-action {
    flex: 1 1 100%;
    order: -1;
  }
}