.course-hero {
  padding: clamp(2.6rem, 6vw, 5rem) 0 2.4rem;
  background: linear-gradient(135deg, var(--navy-wash), #f4f2fa);
  border-bottom: 1px solid var(--line);
}

.course-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(260px, .8fr);
  align-items: center;
  gap: clamp(2rem, 5vw, 5rem);
}

.course-hero h1 {
  max-width: 15ch;
  margin-bottom: 1rem;
}

.course-hero .lead {
  max-width: 62ch;
}

.course-hero-actions,
.course-page-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-top: 1.4rem;
}

.course-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: .65rem 1rem;
  color: var(--white);
  background: var(--navy);
  border: 1px solid var(--navy);
  border-radius: 5px;
  font-weight: 650;
  line-height: 1.25;
  text-decoration: none;
}

.course-button:hover { background: var(--navy-soft); }
.course-button.secondary {
  color: var(--navy);
  background: var(--white);
  border-color: var(--line);
}
.course-button.secondary:hover { background: var(--navy-pale); }
.course-button:disabled {
  color: var(--muted);
  background: #ececf1;
  border-color: #d8d8df;
  cursor: not-allowed;
}

.course-hero-figure {
  margin: 0;
  padding: 1rem;
  background: rgba(255,255,255,.72);
  border: 1px solid rgba(0,0,81,.12);
  border-radius: 10px;
}

.course-hero-figure figcaption {
  margin-top: .7rem;
  color: var(--muted);
  font-size: .86rem;
  line-height: 1.5;
}

.course-overview-section { padding: 3rem 0 4rem; }

.course-progress-card {
  padding: 1.15rem 1.25rem;
  background: var(--navy-wash);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.course-progress-label {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: .55rem;
  color: var(--muted);
  font-size: .9rem;
  font-weight: 600;
}

.course-progress-track {
  overflow: hidden;
  height: 9px;
  background: #dedee8;
  border-radius: 999px;
}

.course-progress-bar {
  width: 0;
  height: 100%;
  background: var(--navy);
  border-radius: inherit;
  transition: width .25s ease;
}

.course-module-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.course-module-card {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: .9rem;
  min-height: 150px;
  padding: 1.25rem;
  color: inherit;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  text-decoration: none;
  transition: border-color .2s, transform .2s, box-shadow .2s;
}

.course-module-card:hover {
  border-color: var(--focus);
  box-shadow: 0 10px 24px rgba(0,0,81,.07);
  transform: translateY(-2px);
}

.course-module-number {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  color: var(--navy);
  background: var(--navy-pale);
  border-radius: 50%;
  font-size: .84rem;
  font-weight: 750;
}

.course-module-card h2 {
  margin: .1rem 0 .35rem;
  font-size: 1.05rem;
}

.course-module-card p {
  margin: 0;
  color: var(--muted);
  font-size: .92rem;
  line-height: 1.55;
}

.course-module-status {
  display: inline-flex;
  margin-top: .8rem;
  color: var(--muted);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.course-module-card.is-complete {
  background: #f4faf7;
  border-color: #bfd9ca;
}

.course-module-card.is-complete .course-module-status { color: #276548; }

.course-shell {
  width: min(1180px, calc(100% - 3rem));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 260px minmax(0, 760px);
  justify-content: center;
  gap: clamp(2rem, 5vw, 4rem);
  padding: 2.25rem 0 4rem;
}

.course-sidebar {
  align-self: start;
  position: sticky;
  top: 92px;
}

.course-sidebar .course-progress-card {
  margin-bottom: 1rem;
  padding: .9rem;
}

.course-nav-title {
  margin: 0 0 .45rem;
  color: var(--muted);
  font-size: .72rem;
  font-weight: 750;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.course-nav-list {
  display: grid;
  gap: .15rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.course-nav-list a {
  display: grid;
  grid-template-columns: 26px 1fr;
  gap: .55rem;
  padding: .46rem .55rem;
  border-radius: 4px;
  color: var(--text);
  font-size: .86rem;
  line-height: 1.35;
  text-decoration: none;
}

.course-nav-list a:hover,
.course-nav-list a[aria-current="page"] { background: var(--navy-pale); color: var(--navy); }

.course-nav-list .nav-number {
  color: var(--muted);
  font-size: .75rem;
  font-weight: 700;
}

.course-nav-list a.is-complete .nav-number { color: #276548; }
.course-nav-list a.is-complete .nav-number::after { content: " ✓"; }

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

.course-breadcrumb {
  margin: 0 0 1rem;
  color: var(--muted);
  font-size: .86rem;
}

.course-breadcrumb a { color: var(--navy); }

.course-article > h1 {
  margin-bottom: .7rem;
  font-size: clamp(1.75rem, 3vw, 2.35rem);
}

.course-article > p:first-of-type,
.course-article > p:nth-of-type(2) {
  margin-block: .15rem;
  color: var(--muted);
  font-size: .94rem;
}

.course-article h2 {
  margin-top: 2.5rem;
  padding-top: .35rem;
}

.course-article h3 { margin-top: 1.75rem; }
.course-article table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.2rem 0;
  font-size: .92rem;
  line-height: 1.5;
}
.course-article th,
.course-article td {
  padding: .7rem .75rem;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}
.course-article th { color: var(--navy); background: var(--navy-pale); }
.course-article blockquote {
  margin: 1.4rem 0;
  padding: 1rem 1.2rem;
  background: var(--navy-wash);
  border-left: 3px solid var(--focus);
}
.course-article blockquote p { margin: 0; }
.course-article code {
  padding: .08em .3em;
  background: var(--navy-wash);
  border-radius: 3px;
  font-size: .9em;
}

.course-code {
  position: relative;
  margin: 1.25rem 0;
}

.course-code pre {
  overflow-x: auto;
  margin: 0;
  padding: 3rem 1.15rem 1.15rem;
  color: #f4f4fa;
  background: #1f2038;
  border-radius: 7px;
  font-size: .87rem;
  line-height: 1.6;
}

.course-code pre code { padding: 0; color: inherit; background: transparent; }

.copy-instruction {
  display: grid;
  gap: .12rem;
  margin: 1.25rem 0 .45rem;
  padding: .72rem .9rem;
  color: var(--text);
  background: var(--navy-wash);
  border-left: 3px solid var(--navy);
  border-radius: 0 6px 6px 0;
  font-size: .94rem;
  line-height: 1.5;
}

.copy-instruction strong {
  color: var(--navy);
  font-size: .86rem;
  letter-spacing: .02em;
}

.copy-instruction span { display: block; }
.copy-instruction + .course-code { margin-top: 0; }
.copy-code-button {
  position: absolute;
  top: .6rem;
  right: .6rem;
  padding: .3rem .55rem;
  color: var(--navy);
  background: rgba(255,255,255,.92);
  border: 1px solid rgba(255,255,255,.55);
  border-radius: 4px;
  font-size: .76rem;
  font-weight: 700;
}

.task-list-item {
  margin: .55rem 0;
  list-style: none;
}

.task-list-item input {
  width: 1.05rem;
  height: 1.05rem;
  margin: 0 .55rem 0 -1.55rem;
  accent-color: var(--navy);
}

.quiz-panel {
  margin: 2rem 0;
  padding: 1.25rem;
  background: #faf9fc;
  border: 1px solid #d8d4e6;
  border-radius: 8px;
}

.quiz-panel h2 { margin-top: 0; padding-top: 0; }
.quiz-question {
  margin: 1.2rem 0;
  padding: 0;
  border: 0;
}
.quiz-question legend {
  width: 100%;
  margin-bottom: .65rem;
  color: var(--ink);
  font-weight: 700;
}
.quiz-option {
  display: flex;
  gap: .55rem;
  align-items: flex-start;
  margin: .5rem 0;
  padding: .62rem .7rem;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 5px;
}
.quiz-option:focus-within { outline: 2px solid var(--focus); outline-offset: 2px; }
.quiz-option input { margin-top: .35rem; accent-color: var(--navy); }
.quiz-result {
  min-height: 1.5rem;
  margin: .8rem 0 0;
  font-weight: 650;
}
.quiz-result.is-correct { color: #276548; }
.quiz-result.is-wrong { color: #9a3f37; }

.course-completion-panel {
  margin-top: 2.5rem;
  padding: 1.25rem;
  background: var(--navy-pale);
  border: 1px solid #cecee1;
  border-radius: 8px;
}
.course-completion-panel h2 { margin: 0 0 .45rem; font-size: 1.15rem; }
.course-completion-panel p { margin: .3rem 0 1rem; }
.completion-note { color: var(--muted); font-size: .84rem; }

.course-page-nav {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 2rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
}
.course-page-nav a { color: var(--navy); font-weight: 650; text-decoration: none; }
.course-page-nav a:hover { text-decoration: underline; }

.course-support-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.5rem;
}
.course-support-links a { color: var(--navy); font-weight: 650; }

.course-reset {
  margin-top: 1rem;
  padding: 0;
  color: var(--muted);
  background: transparent;
  border: 0;
  font-size: .78rem;
  text-decoration: underline;
}

.flow-visual {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: .65rem;
  margin: 1.4rem 0;
}
.flow-step {
  position: relative;
  padding: .8rem;
  color: var(--navy);
  background: var(--navy-pale);
  border: 1px solid #cecee1;
  border-radius: 6px;
  text-align: center;
  font-size: .84rem;
  font-weight: 650;
}

@media (max-width: 880px) {
  .course-hero-grid { grid-template-columns: 1fr; }
  .course-hero-figure { max-width: 620px; }
  .course-shell { grid-template-columns: 1fr; }
  .course-sidebar {
    position: static;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--line);
  }
  .course-nav-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 620px) {
  .course-module-grid,
  .course-nav-list { grid-template-columns: 1fr; }
  .course-shell,
  .course-hero-grid,
  .course-overview-section .container { width: min(100% - 2rem, 760px); }
  .course-page-nav { display: grid; }
  .course-page-nav a:last-child { text-align: right; }
  .flow-visual { grid-template-columns: 1fr; }
  .course-article table { display: block; overflow-x: auto; white-space: nowrap; }
}

@media print {
  .site-header,
  .course-sidebar,
  .course-page-nav,
  .copy-code-button,
  .course-button,
  .site-footer { display: none !important; }
  .course-shell { display: block; width: 100%; padding: 0; }
  .course-content { max-width: none; }
}

.course-richttijd {
  margin: -.4rem 0 1.4rem;
  font-size: .92rem;
  color: var(--muted, #5b5b6b);
}

.course-reflection {
  max-width: 850px;
  margin: 1.6rem 0;
  padding: 1.25rem 1.4rem;
  background: #fbfaf6;
  border: 1px solid var(--line);
  border-left: 4px solid #b08b2e;
  border-radius: 7px;
}

.course-reflection h2,
.course-reflection h3 {
  margin-top: 0;
}

.course-reflection p {
  margin: 0 0 .8rem;
}

.course-reflection textarea {
  width: 100%;
  min-height: 8.5rem;
  padding: .7rem .8rem;
  font: inherit;
  font-size: .95rem;
  line-height: 1.55;
  color: inherit;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 5px;
  resize: vertical;
}

.course-reflection textarea:focus-visible {
  outline: 2px solid var(--navy);
  outline-offset: 1px;
}

.course-reflection-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  align-items: center;
  margin-top: .8rem;
}

.course-reflection-message {
  margin: 0;
  font-size: .9rem;
  color: var(--muted, #5b5b6b);
}

.course-order {
  max-width: 850px;
  margin: 1.6rem 0;
  padding: 1.25rem 1.4rem;
  background: #f5f8f5;
  border: 1px solid var(--line);
  border-left: 4px solid #2f6f4f;
  border-radius: 7px;
}

.course-order h2 {
  margin-top: 0;
}

.course-order-list {
  list-style: none;
  margin: 1rem 0;
  padding: 0;
  display: grid;
  gap: .55rem;
}

.course-order-item {
  display: flex;
  gap: .8rem;
  align-items: flex-start;
  padding: .6rem .75rem;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 5px;
}

.course-order-item select {
  flex: 0 0 auto;
  min-width: 4rem;
  padding: .3rem .4rem;
  font: inherit;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 4px;
}

.course-order-item select:focus-visible {
  outline: 2px solid var(--navy);
  outline-offset: 1px;
}

.course-order-item span {
  line-height: 1.5;
}