/* Learn: courses, lessons, news, Q&A, 1:1. Uses the site's theme variables (light / dark / pixel skin). */
.learn .i.flip-back { transform: scaleX(-1); }
[dir="rtl"] .learn .i.flip-back { transform: none; }
.learn h2 { font-size: 20px; margin: 0 0 10px; display: flex; align-items: center; gap: 8px; }
.learn .card { margin-bottom: 18px; }
.learn .tag { display: inline-flex; align-items: center; gap: 4px; font: 600 12px var(--sans, inherit); padding: 3px 9px; border-radius: 999px;
  border: 1px solid var(--border); color: var(--muted); background: var(--surface-2, transparent); }
.learn .tag .i { width: 13px; height: 13px; }
.learn .tag.ok, .learn .tag.confirmed, .learn .tag.done { color: var(--accent-2); border-color: color-mix(in srgb, var(--accent) 45%, transparent); }
.learn .tag.staff { color: var(--accent-ink); background: var(--accent); border-color: var(--accent); }
.learn .tag.declined, .learn .tag.cancelled { color: var(--red); border-color: color-mix(in srgb, var(--red) 40%, transparent); }
.learn .tag.tutorial { color: var(--accent-2); }
.learn-tags { display: flex; flex-wrap: wrap; gap: 6px; margin: 8px 0 14px; }
.learn-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 14px; }
.learn-head h2 { margin: 0; }

.learn-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 18px; }
.learn-course { display: flex; flex-direction: column; padding: 0; overflow: hidden; color: inherit; text-decoration: none; margin: 0 !important; transition: border-color .15s, transform .15s; }
.learn-course:hover { border-color: var(--accent); transform: translateY(-2px); }
.learn-course[hidden] { display: none; }
.learn-cover { position: relative; aspect-ratio: 16 / 9; background: color-mix(in srgb, var(--accent) 12%, var(--surface)); display: grid; place-items: center; }
.learn-cover { overflow: hidden; }
.learn-cover img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; }
.learn-cover > span .i { width: 40px; height: 40px; color: var(--accent-2); }
.learn-price { position: absolute; inset-inline-end: 10px; top: 10px; background: var(--bg); color: var(--text); border-radius: 999px; padding: 4px 10px; font: 700 13px var(--sans, inherit); }
.learn-price.free { background: var(--accent); color: var(--accent-ink); }
.learn-course-body { padding: 16px 18px 18px; }
.learn-course-body .learn-tags { margin: 0 0 8px; }
.learn-course h3 { font-size: 17px; margin: 0 0 6px; line-height: 1.35; }
.learn-course p { font-size: 14px; margin: 0 0 10px; }
.learn-bar { height: 6px; border-radius: 999px; background: var(--surface-2, var(--border)); overflow: hidden; margin: 8px 0 4px; }
.learn-bar span { display: block; height: 100%; background: var(--accent); }

.learn-two { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: start; }
.learn-two.wide-left { grid-template-columns: minmax(0, 2fr) minmax(260px, 1fr); }
.learn-posts { display: grid; gap: 10px; }
.learn-post { display: grid; gap: 4px; padding: 12px 14px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); color: inherit; text-decoration: none; }
.learn-post:hover { border-color: var(--accent); }
.learn-post .tag { justify-self: start; }
.learn-1on1 p { margin: 6px 0 14px; }
.learn-community { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.learn-community p { margin: 0; }
.learn-social { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.learn-community .learn-social { margin-top: 0; }

.learn-enroll { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin: 6px 0 10px; }
.learn-big-price { font-size: 20px; font-weight: 800; }
.learn-hero-cover img { width: 100%; border-radius: var(--radius); border: 1px solid var(--border); display: block; }

.learn-lessons { list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; counter-reset: ll; }
.learn-lessons li a { display: flex; align-items: center; gap: 10px; padding: 9px 10px; border-radius: 10px; color: inherit; text-decoration: none; }
.learn-lessons li a:hover { background: var(--surface-2, transparent); }
.learn-lessons li.current a { background: color-mix(in srgb, var(--accent) 12%, transparent); box-shadow: inset 3px 0 0 var(--accent); }
[dir="rtl"] .learn-lessons li.current a { box-shadow: inset -3px 0 0 var(--accent); }
.learn-lessons li.draft { opacity: .55; }
.ll-ico { flex: none; width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; border: 1px solid var(--border); color: var(--muted); }
.ll-ico .i { width: 14px; height: 14px; }
.ll-ico.done { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.ll-title { flex: 1; font-size: 14.5px; }

.learn-lesson h1 { font-size: clamp(24px, 3.2vw, 34px); margin: 4px 0 16px; }
.embed { position: relative; aspect-ratio: 16 / 9; border-radius: var(--radius); overflow: hidden; background: #000; margin: 0 0 18px; }
.embed.vertical { aspect-ratio: 9 / 16; max-width: 340px; margin-inline: auto; }
.embed iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.md { font-size: 16px; line-height: 1.75; overflow-wrap: anywhere; }
.md h2 { font-size: 21px; margin: 22px 0 8px; } .md h3 { font-size: 18px; margin: 18px 0 6px; } .md h4 { font-size: 16px; margin: 14px 0 6px; }
.md > :first-child { margin-top: 0; }
.md p, .md ul, .md ol, .md blockquote, .md pre { margin: 0 0 14px; }
.md ul, .md ol { padding-inline-start: 22px; }
.md a { color: var(--accent-2); text-decoration: underline; text-underline-offset: 3px; }
.md img { max-width: 100%; border-radius: 10px; }
.md code { font-family: var(--mono, monospace); font-size: .9em; background: var(--surface-2, var(--border)); padding: 1px 6px; border-radius: 6px; }
.md pre { background: var(--code-bg); color: var(--code-ink); padding: 14px 16px; border-radius: 12px; overflow-x: auto; }
.md pre code { background: none; padding: 0; color: inherit; }
.md blockquote { border-inline-start: 3px solid var(--accent); padding-inline-start: 14px; color: var(--muted); }
.md .embed { margin: 6px 0 16px; }
.callout { border-radius: 12px; padding: 12px 16px; margin: 0 0 14px; border: 1px solid var(--border); background: var(--surface-2, transparent); }
.callout-tip { border-color: color-mix(in srgb, var(--accent) 45%, transparent); }
.callout-warning { border-color: color-mix(in srgb, var(--red) 45%, transparent); }
.callout > :last-child { margin-bottom: 0; }

.learn-locked { text-align: center; padding: 40px 24px; }
.learn-locked > .i { width: 36px; height: 36px; color: var(--muted); }
.learn-locked .learn-enroll { justify-content: center; }
.learn-done { margin: 0 0 18px; }
.learn-nav { display: flex; justify-content: space-between; gap: 10px; margin: 0 0 22px; flex-wrap: wrap; }

.learn-quiz fieldset { border: 1px solid var(--border); border-radius: 12px; padding: 12px 14px; margin: 0 0 12px; }
.learn-quiz legend { font-weight: 700; padding: 0 6px; }
.quiz-c { display: flex; align-items: flex-start; gap: 8px; padding: 6px 4px; border-radius: 8px; cursor: pointer; }
.quiz-c input { margin-top: 4px; accent-color: var(--accent); }
.quiz-c.right { background: color-mix(in srgb, var(--accent) 16%, transparent); }
.quiz-c.wrong { background: color-mix(in srgb, var(--red) 14%, transparent); }
.quiz-explain { margin: 6px 4px 0; font-size: 14px; }
.quiz-actions { display: flex; align-items: center; gap: 14px; }
.quiz-score { font-weight: 700; }

.learn-qa .qa-form { display: grid; gap: 8px; margin: 10px 0 16px; }
.learn-qa textarea, .learn-form input, .learn-form textarea, .learn-form select {
  width: 100%; background: var(--bg); color: var(--text); border: 1px solid var(--border-2, var(--border)); border-radius: 10px; padding: 10px 12px; font: 15px var(--sans, inherit); }
.learn-qa .qa-form button { justify-self: start; }
.qa-thread { border-top: 1px solid var(--border); padding: 12px 0; }
.qa-item.answer { margin-inline-start: 22px; margin-top: 8px; padding-inline-start: 12px; border-inline-start: 2px solid var(--border); }
.qa-item.staff.answer { border-inline-start-color: var(--accent); }
.qa-meta { font-size: 14px; margin-bottom: 4px; }
.qa-body { font-size: 15px; line-height: 1.6; overflow-wrap: anywhere; }
.qa-reply { margin-top: 6px; margin-inline-start: 22px; }
.qa-reply summary { cursor: pointer; color: var(--accent-2); font-size: 13.5px; }

.learn-form { display: grid; gap: 12px; }
.learn-form label { display: grid; gap: 5px; }
.learn-form label > span { font-size: 13.5px; color: var(--muted); }
.learn-form button { justify-self: start; }
.learn-requests { display: grid; gap: 10px; }
.learn-req { display: grid; gap: 6px; padding: 12px 0; border-top: 1px solid var(--border); }
.learn-req:first-child { border-top: 0; padding-top: 0; }
.learn-req .btn { justify-self: start; }
.learn-toast { position: fixed; inset-inline: 0; bottom: 18px; margin: 0 auto; width: max-content; max-width: calc(100% - 32px); background: var(--text); color: var(--bg);
  padding: 10px 16px; border-radius: 10px; font-weight: 600; z-index: 50; box-shadow: 0 8px 30px rgba(0,0,0,.25); }
.learn-toast.err { background: var(--red); color: #fff; }

@media (max-width: 900px) { .learn-two, .learn-two.wide-left { grid-template-columns: 1fr; } }