/* Course site (SityLink Academy) and shop site (SityLink Shop), on top of app.css and landing.css. */
.st-brand { font-weight: 700; color: var(--ink); }
.st-brand b { color: var(--primary); }
.st-links { display: flex; gap: 18px; margin-left: 8px; }
.st-links a { color: var(--ink-2); text-decoration: none; font-weight: 500; padding: 6px 2px; border-bottom: 2px solid transparent; }
.st-links a.on, .st-links a:hover { color: var(--primary); border-color: var(--primary); }
.st-cart { position: relative; display: inline-grid; place-items: center; width: 40px; height: 40px; border-radius: 12px; color: var(--ink); }
.st-cart .icon { width: 22px; height: 22px; }
.st-count { position: absolute; top: 2px; right: 0; min-width: 18px; height: 18px; padding: 0 5px; border-radius: 9px; background: var(--primary); color: #fff; font-size: .72rem; font-weight: 700; display: grid; place-items: center; }
.st-out { margin: 0; }
.st-hero { padding: 48px 0 40px; }
.st-hero h1 { max-width: 22ch; }
.st-narrow .st-card { max-width: 440px; margin: 0 auto; }
.st-card { background: var(--surface); border: 1px solid var(--line); border-radius: 18px; padding: 22px; box-shadow: var(--shadow); margin-bottom: 18px; }
.st-card.flush { padding: 0; overflow: hidden; }
.st-auth h1 { margin-top: 0; }
.st-resend { margin-top: 8px; }

/* Grids of courses and products */
.st-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 20px; }
.st-grid-p { grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); }
.st-tile { display: flex; flex-direction: column; background: var(--surface); border: 1px solid var(--line); border-radius: 18px; overflow: hidden; color: var(--ink); text-decoration: none; box-shadow: var(--shadow); transition: transform .15s, box-shadow .15s; }
a.st-tile:hover { transform: translateY(-2px); box-shadow: var(--shadow), 0 12px 28px rgba(15, 23, 42, .12); color: var(--ink); }
.st-tile-body { padding: 14px 16px 18px; display: grid; gap: 6px; align-content: start; }
.st-tile h2 { font-size: 1.05rem; margin: 0; line-height: 1.3; }
.st-tile p { margin: 0; }
.st-cover, .st-ph { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; background: var(--surface-2); display: block; }
.st-ph { aspect-ratio: 1; object-fit: contain; padding: 10px; background: #fff; }
.st-cover-blank { display: grid; place-items: center; color: var(--muted); }
.st-cover-blank .icon { width: 42px; height: 42px; opacity: .5; }
.st-cover-lg { border-radius: 18px; box-shadow: var(--shadow); }
.st-chip { display: inline-block; justify-self: start; font-size: .75rem; font-weight: 600; padding: 2px 9px; border-radius: 999px; background: var(--primary-soft); color: var(--primary); }
.st-meta { color: var(--muted); font-size: .88rem; }
.st-price { font-size: 1.05rem; }
.st-big { font-size: 1.9rem; font-weight: 800; margin: 0 0 4px; }
.st-chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 22px; }
.st-chips a { padding: 7px 14px; border-radius: 999px; border: 1px solid var(--line); background: var(--surface); color: var(--ink-2); text-decoration: none; font-weight: 500; font-size: .92rem; }
.st-chips a.on, .st-chips a:hover { background: var(--primary); border-color: var(--primary); color: #fff; }
.st-chips small { opacity: .7; }
.st-cats { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 14px; margin-bottom: 26px; }
.st-cats a { text-decoration: none; color: var(--ink); }
.st-search { display: flex; gap: 8px; max-width: 560px; margin: 22px 0 0; }
.st-search input { flex: 1; padding: 12px 14px; border-radius: 12px; border: 1px solid var(--line-2, var(--line)); background: var(--surface); color: var(--ink); font: inherit; }
.st-ship { display: flex; gap: 12px; align-items: flex-start; margin: 18px 0 0; padding: 12px 14px; border-radius: 14px; background: var(--green-bg, var(--primary-soft)); max-width: 640px; }
.st-ship .icon { width: 26px; height: 26px; flex: none; stroke: var(--green, var(--primary)); }

/* Course page */
.st-course-head { display: grid; grid-template-columns: 1.2fr .8fr; gap: 40px; align-items: center; }
.st-facts { list-style: none; padding: 0; margin: 18px 0 0; display: flex; flex-wrap: wrap; gap: 8px 20px; color: var(--ink-2); }
.st-facts li { display: flex; gap: 6px; align-items: center; }
.st-facts .icon { width: 18px; height: 18px; stroke: var(--primary); }
.st-course-grid { display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: 32px; align-items: start; }
.st-course-grid > aside { position: sticky; top: 86px; }
.st-prose { line-height: 1.65; max-width: 72ch; }
.st-prose h3 { margin: 1.4em 0 .4em; }
.st-prose code { background: var(--surface-2); padding: 1px 6px; border-radius: 6px; }
.st-outline { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.st-outline > li { border: 1px solid var(--line); border-radius: 14px; background: var(--surface); overflow: hidden; }
.st-outline h3 { margin: 0; padding: 12px 16px; font-size: 1rem; background: var(--surface-2); border-bottom: 1px solid var(--line); }
.st-outline ul { list-style: none; margin: 0; padding: 4px 0; }
.st-outline ul li > a, .st-outline ul li > span { display: grid; grid-template-columns: 26px 1fr auto; gap: 10px; align-items: center; padding: 9px 16px; color: var(--ink); text-decoration: none; }
.st-outline ul li > a:hover { background: var(--primary-soft); }
.st-outline li.on > a { background: var(--primary-soft); font-weight: 600; }
.st-outline li.done .st-l-ic .icon { stroke: var(--ok); }
.st-l-ic .icon { width: 18px; height: 18px; stroke: var(--muted); }
.st-l-m { color: var(--muted); font-size: .82rem; text-align: right; }
.st-locked { opacity: .65; }
.st-buy form { margin-top: 12px; }
progress.st-bar { width: 100%; height: 8px; border-radius: 999px; border: 0; background: var(--surface-2); overflow: hidden; appearance: none; }
progress.st-bar::-webkit-progress-bar { background: var(--surface-2); border-radius: 999px; }
progress.st-bar::-webkit-progress-value { background: var(--ok, #16a34a); border-radius: 999px; }
progress.st-bar::-moz-progress-bar { background: var(--ok, #16a34a); border-radius: 999px; }

/* Lesson player */
.st-learn { display: grid; grid-template-columns: 300px minmax(0, 1fr); gap: 28px; padding-block: 28px 60px; align-items: start; }
.st-side { position: sticky; top: 86px; max-height: calc(100vh - 100px); overflow: auto; display: grid; gap: 10px; }
.st-side h2 { font-size: 1.05rem; margin: 0; }
.st-back { text-decoration: none; font-weight: 600; }
.st-side-outline summary { cursor: pointer; font-weight: 600; margin-bottom: 8px; }
.st-side .st-outline ul li > a, .st-side .st-outline ul li > span { grid-template-columns: 22px 1fr; padding: 7px 12px; font-size: .92rem; }
.st-side .st-l-m { display: none; }
.st-kind { color: var(--muted); display: flex; gap: 6px; align-items: center; margin: 0; }
.st-kind .icon { width: 18px; height: 18px; }
.st-lesson h1 { margin: 6px 0 18px; }
.st-video { position: relative; aspect-ratio: 16 / 9; border-radius: 16px; overflow: hidden; background: #000; box-shadow: var(--shadow); margin-bottom: 18px; }
.st-video iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.st-done { margin: 22px 0; }
.st-pulse { animation: st-pulse 1.2s ease-in-out 3; }
@keyframes st-pulse { 50% { box-shadow: 0 0 0 8px color-mix(in srgb, var(--primary) 30%, transparent); } }
.st-pager { display: flex; justify-content: space-between; gap: 12px; margin-top: 32px; padding-top: 16px; border-top: 1px solid var(--line); }
.st-pager a { text-decoration: none; font-weight: 600; max-width: 45%; }
.st-deck { display: grid; gap: 16px; outline: none; }
.st-slide { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 16px; box-shadow: var(--shadow); }
.st-slide img { width: 100%; max-height: 70vh; object-fit: contain; border-radius: 10px; background: #fff; display: block; }
.st-slide h3 { margin: 12px 0 4px; }
.st-slide-n { color: var(--muted); font-size: .82rem; text-align: right; margin: 6px 0 0; }
.st-deck-nav { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.st-deck-js { min-height: 200px; }
.st-quiz { display: grid; gap: 16px; }
.st-q { border: 1px solid var(--line); border-radius: 14px; padding: 14px 16px; background: var(--surface); margin: 0; }
.st-q legend { font-weight: 600; padding: 0 4px; }
.st-q.right { border-color: var(--ok); }
.st-q.wrong { border-color: var(--danger, #dc2626); }
.st-opt { display: flex; gap: 10px; align-items: flex-start; padding: 7px 4px; cursor: pointer; }
.st-opt input { margin-top: 4px; }
.st-right { color: var(--ok); font-size: .85rem; display: inline-flex; gap: 4px; align-items: center; }
.st-right .icon { width: 14px; height: 14px; stroke: var(--ok); }
.st-explain { margin: 8px 0 0; padding: 8px 12px; background: var(--surface-2); border-radius: 10px; font-size: .92rem; }
.st-pass { border-color: var(--ok); }
.st-fail { border-color: var(--warn, #d97706); }
.st-sub .pre, .pre { white-space: pre-wrap; }
.st-cert { max-width: 760px; margin: 0 auto; text-align: center; padding: 48px 32px; border: 6px double var(--primary); border-radius: 20px; background: var(--surface); }
.st-cert h1 { font-size: 2.2rem; margin: 6px 0; }
.st-cert-k { text-transform: uppercase; letter-spacing: .12em; font-weight: 700; color: var(--primary); }
.st-cert-actions { text-align: center; margin-top: 18px; }

/* Shop: product, cart, checkout */
.st-crumbs { color: var(--muted); margin: 0 0 14px; }
.st-product { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 36px; align-items: start; }
.st-gallery { display: grid; gap: 10px; }
.st-main { width: 100%; aspect-ratio: 1; object-fit: contain; background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 12px; }
.st-thumbs { display: flex; flex-wrap: wrap; gap: 8px; }
.st-thumbs button { padding: 0; border: 2px solid var(--line); border-radius: 10px; background: #fff; cursor: pointer; width: 64px; height: 64px; overflow: hidden; }
.st-thumbs button.on { border-color: var(--primary); }
.st-thumbs img { width: 100%; height: 100%; object-fit: contain; }
.st-add { display: flex; gap: 12px; align-items: flex-end; margin: 18px 0 6px; }
.st-qty input { width: 90px; }
.st-pdesc { margin-top: 40px; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
.st-specs th { width: 40%; color: var(--muted); font-weight: 600; }
.st-thumb { width: 56px; height: 56px; object-fit: contain; background: #fff; border-radius: 10px; border: 1px solid var(--line); display: inline-grid; place-items: center; }
.st-cart-t td { vertical-align: middle; }
.st-cart-t .num { text-align: right; }
.st-qty-f { display: flex; gap: 6px; align-items: center; }
.st-qty-f input { width: 70px; }
.st-row { display: flex; justify-content: space-between; gap: 12px; margin: 6px 0; }
.st-total { border-top: 1px solid var(--line); padding-top: 10px; margin-top: 12px; font-size: 1.1rem; }
.st-methods { border: 0; padding: 0; margin: 14px 0; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.st-method { display: flex; gap: 10px; align-items: flex-start; padding: 12px 14px; border: 1.5px solid var(--line); border-radius: 14px; cursor: pointer; }
.st-method:has(input:checked) { border-color: var(--primary); background: var(--primary-soft); }
.st-method span { display: grid; }
.st-method small { color: var(--muted); }
.st-order { max-width: 640px; margin: 0 auto; }

/* Admin site helpers */
.st-admin-cover { max-width: 100%; border-radius: 12px; margin-bottom: 10px; }
.st-admin-sec { border: 1px solid var(--line); border-radius: 14px; padding: 12px 14px; margin-bottom: 14px; }
.st-admin-sec-head { display: flex; flex-wrap: wrap; gap: 8px; align-items: flex-end; }
.st-admin-lessons { margin: 10px 0 12px 1.4em; padding: 0; display: grid; gap: 4px; }
.st-admin-lessons li form { display: inline; }
.st-num { display: inline-grid; place-items: center; min-width: 28px; height: 28px; border-radius: 8px; background: var(--primary-soft); color: var(--primary); font-weight: 700; margin-right: 6px; }
.st-admin-slide { display: grid; grid-template-columns: 34px 180px minmax(0, 1fr) auto; gap: 14px; align-items: start; padding: 12px 0; border-top: 1px solid var(--line); }
.st-admin-slide img, .st-admin-noimg { width: 180px; aspect-ratio: 16 / 9; object-fit: contain; background: #fff; border: 1px solid var(--line); border-radius: 8px; display: grid; place-items: center; color: var(--muted); }
.st-admin-q { border-top: 1px solid var(--line); padding-top: 12px; margin-top: 12px; }
.st-admin-photos { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 12px; }
.st-admin-photos figure { margin: 0; width: 150px; display: grid; gap: 6px; }
.st-admin-photos img { width: 150px; height: 150px; object-fit: contain; background: #fff; border: 1px solid var(--line); border-radius: 10px; }
.st-model input { max-width: 140px; }

/* Business dashboard recommendations */
.rec-block { margin-bottom: 18px; }
.rec-title { display: flex; gap: 8px; align-items: center; font-size: 1.05rem; }
.rec-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 16px; margin-bottom: 22px; }
.rec-card { border-left: 4px solid var(--amber, #d97706); display: grid; gap: 8px; }
.rec-card h3 { margin: 0; font-size: 1.02rem; }
.rec-card p { margin: 0; }
.rec-head { display: flex; gap: 12px; align-items: center; }
.rec-ic { display: inline-grid; place-items: center; width: 40px; height: 40px; border-radius: 12px; background: var(--amber-bg, var(--primary-soft)); flex: none; }
.rec-ic .icon { stroke: var(--amber, var(--primary)); }
.rec-product { display: grid; grid-template-columns: 56px 1fr 20px; gap: 12px; align-items: center; padding: 10px; border: 1px solid var(--line); border-radius: 12px; text-decoration: none; color: var(--ink); background: var(--surface-2); }
.rec-product:hover { border-color: var(--primary); color: var(--ink); }
.rec-product img, .rec-noimg { width: 56px; height: 56px; object-fit: contain; background: #fff; border-radius: 8px; display: grid; place-items: center; }
.rec-product span { display: grid; }
.rec-product small { color: var(--muted); }
.rec-go { transform: rotate(90deg); }
.rec-dismiss { justify-self: end; }
.rec-products { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 14px; margin-bottom: 22px; }
.rec-p { display: grid; gap: 6px; text-decoration: none; color: var(--ink); margin: 0; }
.rec-p img { width: 100%; aspect-ratio: 1; object-fit: contain; background: #fff; border-radius: 10px; }

@media (max-width: 900px) {
  .st-course-head, .st-course-grid, .st-product, .st-learn, .st-pdesc { grid-template-columns: 1fr; }
  .st-course-grid > aside, .st-side { position: static; max-height: none; }
  .st-links { display: none; }
  .st-admin-slide { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .st-methods { grid-template-columns: 1fr; }
  .st-brand { display: none; }
}
@media print {
  .lp-top, .lp-foot, .st-cert-actions { display: none !important; }
  .st-cert { border-color: #2563eb; }
}