/* Course Builder — course pages, catalog, cards, student dashboard. */
.cb-course, .cb-catalog, .cb-dash, .cb-grid, .cb-enroll-inline {
  --cb-ink: #111827; --cb-muted: #6b7280; --cb-line: #e5e7eb; --cb-soft: #f9fafb; --cb-radius: 12px;
  color: var(--cb-ink); box-sizing: border-box;
}
.cb-course *, .cb-catalog *, .cb-dash *, .cb-grid *, .cb-enroll-inline * { box-sizing: border-box; }
.cb-small { color: var(--cb-muted); font-size: .875em; }
.cb-hp { position: absolute !important; left: -9999px !important; width: 1px; height: 1px; overflow: hidden; }

/* Buttons */
.cb-btn, .cb-auth .button-primary, .cb-auth #wp-submit {
  display: inline-flex; align-items: center; justify-content: center; gap: .4em;
  background: var(--cb-accent, #4f46e5); color: #fff !important; border: 1px solid var(--cb-accent, #4f46e5);
  padding: .7em 1.2em; border-radius: 10px; font-weight: 600; font-size: 1rem; line-height: 1.2;
  text-decoration: none !important; cursor: pointer; transition: filter .15s; font-family: inherit;
}
.cb-btn:hover, .cb-auth #wp-submit:hover { filter: brightness(1.08); }
.cb-btn-ghost { background: #fff; color: var(--cb-ink) !important; border-color: #d1d5db; }
.cb-btn-ghost:hover { background: var(--cb-soft); filter: none; }
.cb-btn-block { display: flex; width: 100%; margin: 0 0 .6em; }
.cb-enroll-inline form, .cb-box form { margin: 0; }

.cb-note { background: #fef3c7; color: #78350f; border-radius: 10px; padding: .7em .9em; margin: 0 0 .8em; font-size: .95em; }
.cb-notice { border-radius: 10px; padding: .7em .9em; margin: 0 0 .8em; background: #ecfdf5; color: #065f46; }
.cb-notice-error { background: #fef2f2; color: #991b1b; }
.cb-tag { display: inline-block; font-size: .75em; font-weight: 600; padding: .2em .6em; border-radius: 99px; background: #eef2ff; color: #3730a3; vertical-align: middle; }
.cb-tag.is-completed { background: #dcfce7; color: #166534; }
.cb-tag.is-pending { background: #fef3c7; color: #92400e; }
.cb-tag.is-failed, .cb-tag.is-expired, .cb-tag.is-cancelled { background: #fee2e2; color: #991b1b; }

.cb-progress { display: block; height: 8px; background: #e5e7eb; border-radius: 99px; overflow: hidden; margin: .4em 0; }
.cb-progress-bar { display: block; height: 100%; background: var(--cb-accent, #4f46e5); border-radius: 99px; }
.cb-progress-sm { height: 5px; margin-top: .6em; }

.cb-stars { color: #d1d5db; letter-spacing: 1px; white-space: nowrap; }
.cb-star.is-full { color: #f59e0b; }
.cb-star.is-half { background: linear-gradient(90deg, #f59e0b 50%, #d1d5db 50%); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* Course page */
.cb-meta { display: flex; flex-wrap: wrap; gap: .5em 1.2em; align-items: center; color: var(--cb-muted); margin: 0 0 1.5em; font-size: .95em; }
.cb-meta-inst { display: inline-flex; align-items: center; gap: .5em; color: var(--cb-ink); font-weight: 600; }
.cb-meta-inst img { border-radius: 50%; }
.cb-course-grid { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 2em; align-items: start; }
.cb-course-side { grid-column: 2; grid-row: 1; position: sticky; top: 1.5em; }
.cb-course-main { grid-column: 1; grid-row: 1; min-width: 0; }
.cb-box { border: 1px solid var(--cb-line); border-radius: var(--cb-radius); padding: 1.2em; background: #fff; box-shadow: 0 4px 18px rgba(0,0,0,.05); }
.cb-box-img { width: calc(100% + 2.4em); max-width: none; height: auto; margin: -1.2em -1.2em 1em; border-radius: var(--cb-radius) var(--cb-radius) 0 0; display: block; }
.cb-price { font-size: 1.8em; font-weight: 800; margin: 0 0 .5em; }
.cb-includes { list-style: none; margin: 1em 0 0; padding: 1em 0 0; border-top: 1px solid var(--cb-line); font-size: .95em; }
.cb-includes li { margin: .35em 0; color: #374151; }
.cb-section { margin: 2em 0; }
.cb-section h2 { font-size: 1.35em; margin: 0 0 .7em; }
.cb-checks { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: .5em 1.5em; }
.cb-checks li { padding-left: 1.6em; position: relative; }
.cb-checks li::before { content: "✓"; position: absolute; left: 0; color: var(--cb-accent, #4f46e5); font-weight: 700; }
.cb-announce { background: #eef2ff; border-radius: 10px; padding: .9em 1em; margin: 0 0 1em; }
.cb-announce p { margin: .4em 0 0; }
.cb-acc { border: 1px solid var(--cb-line); border-radius: 10px; margin: 0 0 .6em; background: #fff; overflow: hidden; }
.cb-acc summary { display: flex; justify-content: space-between; gap: 1em; padding: .85em 1em; cursor: pointer; font-weight: 600; background: var(--cb-soft); list-style: none; }
.cb-acc summary::-webkit-details-marker { display: none; }
.cb-acc summary::before { content: "▸"; margin-right: .2em; transition: transform .15s; }
.cb-acc[open] summary::before { transform: rotate(90deg); }
.cb-acc summary > span:first-child { flex: 1; }
.cb-items { list-style: none; margin: 0; padding: 0; }
.cb-item { display: flex; align-items: center; gap: .7em; padding: .7em 1em; border-top: 1px solid var(--cb-line); flex-wrap: wrap; }
.cb-item a { color: var(--cb-ink); text-decoration: none; }
.cb-item a:hover { color: var(--cb-accent, #4f46e5); text-decoration: underline; }
.cb-item > a, .cb-item > span:nth-child(2) { flex: 1; min-width: 0; }
.cb-item-ico { width: 1.7em; height: 1.7em; flex: none; border-radius: 50%; background: #eef2ff; color: var(--cb-accent, #4f46e5); display: inline-flex; align-items: center; justify-content: center; font-size: .8em; font-weight: 700; }
.cb-item.is-done .cb-item-ico { background: #dcfce7; color: #166534; }
.cb-item-meta { color: var(--cb-muted); font-size: .85em; }
.cb-inst { display: flex; gap: 1em; align-items: flex-start; }
.cb-inst img { border-radius: 50%; flex: none; }
.cb-inst p { margin: .4em 0 0; }

/* Reviews */
.cb-rating-sum { display: flex; align-items: center; gap: .6em; margin: 0 0 1em; }
.cb-rating-sum strong { font-size: 2em; }
.cb-review { display: flex; gap: .8em; padding: 1em 0; border-top: 1px solid var(--cb-line); }
.cb-review img { border-radius: 50%; flex: none; }
.cb-review p { margin: .3em 0 0; }
.cb-review-form { background: var(--cb-soft); border-radius: 10px; padding: 1em; margin: 0 0 1em; }
.cb-review-form p { margin: 0 0 .6em; }
.cb-rate { border: 0; padding: 0; margin: 0 0 .6em; display: inline-flex; flex-direction: row-reverse; gap: 2px; }
.cb-rate input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.cb-rate label { font-size: 1.8em; color: #d1d5db; cursor: pointer; line-height: 1; }
.cb-rate input:checked ~ label, .cb-rate label:hover, .cb-rate label:hover ~ label { color: #f59e0b; }
.cb-rate input:focus-visible + label { outline: 2px solid var(--cb-accent, #4f46e5); border-radius: 4px; }

/* Forms */
.cb-form label { display: block; font-weight: 600; font-size: .95em; }
.cb-form input[type=text], .cb-form input[type=email], .cb-form input[type=password], .cb-form textarea,
.cb-auth input[type=text], .cb-auth input[type=password], .cb-filters input, .cb-filters select {
  display: block; width: 100%; padding: .65em .8em; border: 1px solid #d1d5db; border-radius: 8px; font: inherit; font-weight: 400; margin-top: .3em; background: #fff; color: var(--cb-ink);
}
.cb-auth { margin: .4em 0; }
.cb-auth h3 { font-size: 1em; margin: 0 0 .8em; font-weight: 600; }
.cb-auth-tabs { display: flex; border-bottom: 1px solid var(--cb-line); margin: 0 0 1em; }
.cb-auth-tabs a { flex: 1; text-align: center; padding: .6em; text-decoration: none; color: var(--cb-muted); font-weight: 600; border-bottom: 2px solid transparent; margin-bottom: -1px; }
.cb-auth-tabs a.is-active { color: var(--cb-accent, #4f46e5); border-color: var(--cb-accent, #4f46e5); }
.cb-auth form p { margin: 0 0 .8em; }
.cb-auth label { display: block; font-weight: 600; font-size: .95em; }
.cb-auth .login-remember label { font-weight: 400; display: flex; gap: .4em; align-items: center; }
.cb-auth #wp-submit { width: 100%; }

/* Catalog */
.cb-filters { display: flex; flex-wrap: wrap; gap: .6em; margin: 0 0 1.5em; align-items: stretch; }
.cb-filters input, .cb-filters select { width: auto; margin: 0; flex: 1 1 160px; }
.cb-filters input[type=search] { flex: 2 1 220px; }
.cb-grid { display: grid; gap: 1.4em; grid-template-columns: repeat(var(--cb-cols, 3), minmax(0, 1fr)); }
.cb-grid-1 { --cb-cols: 1; max-width: 380px; }
.cb-grid-2 { --cb-cols: 2; }
.cb-grid-3 { --cb-cols: 3; }
.cb-grid-4 { --cb-cols: 4; }
.cb-card { border: 1px solid var(--cb-line); border-radius: var(--cb-radius); overflow: hidden; background: #fff; transition: box-shadow .15s, transform .15s; }
.cb-card:hover { box-shadow: 0 10px 28px rgba(0,0,0,.08); transform: translateY(-2px); }
.cb-card-link { display: flex; flex-direction: column; height: 100%; color: inherit !important; text-decoration: none !important; }
.cb-card-img { display: block; width: 100%; aspect-ratio: 16/9; object-fit: cover; height: auto; }
.cb-card-ph { display: flex; align-items: center; justify-content: center; font-size: 2.6em; font-weight: 800; color: #fff; background: linear-gradient(135deg, var(--cb-accent, #4f46e5), #0ea5e9); }
.cb-card-body { padding: 1em 1.1em 1.1em; display: flex; flex-direction: column; gap: .3em; flex: 1; }
.cb-card-cat { font-size: .75em; text-transform: uppercase; letter-spacing: .06em; color: var(--cb-accent, #4f46e5); font-weight: 700; }
.cb-card-title { font-size: 1.1em; margin: 0; line-height: 1.3; }
.cb-card-inst, .cb-card-meta { color: var(--cb-muted); font-size: .88em; }
.cb-card-price { font-weight: 800; margin-top: auto; padding-top: .4em; }
.cb-empty { text-align: center; color: var(--cb-muted); padding: 2em 1em; }
.cb-empty .cb-btn { margin-top: .5em; }
.cb-pager { display: flex; gap: .4em; justify-content: center; margin: 1.5em 0 0; flex-wrap: wrap; }
.cb-pager a, .cb-pager span { padding: .4em .8em; border-radius: 8px; border: 1px solid var(--cb-line); text-decoration: none; color: var(--cb-ink); }
.cb-pager .is-current { background: var(--cb-accent, #4f46e5); color: #fff; border-color: transparent; }

/* Dashboard */
.cb-dash-head { display: flex; align-items: center; gap: .9em; margin: 0 0 1em; }
.cb-dash-head img { border-radius: 50%; }
.cb-dash-head > div { flex: 1; display: flex; flex-direction: column; }
.cb-dash-head strong { font-size: 1.2em; }
/* follow-up: the tab row wraps onto more lines in narrow content columns instead of scrolling sideways. */
.cb-tabs { display: flex; flex-wrap: wrap; gap: .3em; border-bottom: 1px solid var(--cb-line); margin: 0 0 1.4em; overflow: visible; max-width: 100%; }
.cb-tabs a { padding: .7em 1em; text-decoration: none; color: var(--cb-muted); font-weight: 600; border-bottom: 2px solid transparent; margin-bottom: -1px; white-space: nowrap; max-width: 100%; }
.cb-tabs a.is-active { color: var(--cb-accent, #4f46e5); border-color: var(--cb-accent, #4f46e5); }
.cb-mycourses, .cb-certs { display: grid; gap: .9em; }
.cb-mycourse, .cb-cert { display: flex; gap: 1em; align-items: center; border: 1px solid var(--cb-line); border-radius: var(--cb-radius); padding: .9em; background: #fff; }
.cb-mycourse-img { width: 84px; height: 84px; border-radius: 10px; object-fit: cover; flex: none; font-size: 1.8em; }
.cb-mycourse-body, .cb-cert-body { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: .2em; align-items: flex-start; }
.cb-mycourse-body .cb-progress { width: 100%; }
.cb-mycourse-title { font-weight: 700; color: var(--cb-ink); text-decoration: none; }
.cb-cert-ico { font-size: 2em; }
.cb-cert-actions { display: flex; gap: .5em; flex-wrap: wrap; }
.cb-table-wrap { overflow-x: auto; margin: 0 0 1.5em; }
.cb-table { width: 100%; border-collapse: collapse; font-size: .95em; }
.cb-table th, .cb-table td { text-align: left; padding: .7em; border-bottom: 1px solid var(--cb-line); vertical-align: top; }
.cb-table th { background: var(--cb-soft); font-weight: 600; }
.cb-points { display: flex; align-items: baseline; gap: .4em; margin: 0 0 1em; }
.cb-points strong { font-size: 2.4em; color: var(--cb-accent, #4f46e5); }
.cb-badges { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: .9em; }
.cb-badge { border: 1px dashed #d1d5db; border-radius: var(--cb-radius); padding: 1em; text-align: center; display: flex; flex-direction: column; gap: .25em; align-items: center; opacity: .65; filter: grayscale(1); }
.cb-badge.is-earned { opacity: 1; filter: none; border-style: solid; border-color: #c7d2fe; background: #eef2ff; }
.cb-badge-ico { font-size: 2.2em; }
.cb-badge-when { color: #3730a3; }

@media (max-width: 900px) {
  .cb-grid-3, .cb-grid-4 { --cb-cols: 2; }
}
@media (max-width: 820px) {
  .cb-course-grid { grid-template-columns: minmax(0, 1fr); }
  .cb-course-side { grid-column: 1; grid-row: 1; position: static; }
  .cb-course-main { grid-row: 2; }
}
@media (max-width: 600px) {
  .cb-grid-2, .cb-grid-3, .cb-grid-4 { --cb-cols: 1; }
  .cb-grid-1 { max-width: none; }
  .cb-mycourse, .cb-cert { flex-wrap: wrap; }
  .cb-mycourse-img { width: 64px; height: 64px; }
  .cb-mycourse .cb-btn, .cb-cert-actions { width: 100%; }
  .cb-cert-actions .cb-btn { flex: 1; }
  .cb-mycourse .cb-btn { justify-content: center; }
  .cb-table thead { display: none; }
  .cb-table tr { display: block; border: 1px solid var(--cb-line); border-radius: 10px; margin: 0 0 .7em; padding: .3em .2em; }
  .cb-table td { display: flex; justify-content: space-between; gap: 1em; border: 0; padding: .4em .6em; text-align: right; }
  .cb-table td::before { content: attr(data-label); font-weight: 600; text-align: left; color: var(--cb-muted); }
  .cb-filters button { flex: 1 1 100%; }
  .cb-tabs { gap: 0; flex-wrap: wrap; overflow: visible; }
  .cb-tabs a { padding: .6em .5em; font-size: .9em; flex: 1 1 auto; text-align: center; }
}