/* ==========================================================================
   Bitfa Learn — صفحه‌ی دوره «آموزش ارز دیجیتال از صفر تا صد» (/learn/)
   وابسته به توکن‌های main.css
   ========================================================================== */

/* ---------- Hero ---------- */
.learn-hero__inner { grid-template-columns: 1.15fr .85fr; }
.learn-hero .hero__sub { max-width: 54ch; }

.learn-hero__panel { display: flex; justify-content: flex-start; }
.learn-progress-card {
	width: 100%; max-width: 420px;
	background: var(--dark-3);
	border: 1px solid var(--dark-border);
	border-radius: var(--radius);
	padding: 22px;
	color: #fff;
}
.learn-progress-card__head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; font-size: 15px; }
.learn-progress-card__head span { color: var(--primary); font-weight: 700; }
.learn-progress-bar { height: 8px; background: var(--dark-2); border-radius: 999px; overflow: hidden; }
.learn-progress-bar span { display: block; height: 100%; width: 0; background: var(--primary); border-radius: 999px; transition: width .4s ease; }
.learn-progress-card__hint { color: var(--dark-muted); font-size: 12.5px; margin: 10px 0 14px; }
.learn-progress-list { max-height: 300px; overflow-y: auto; display: flex; flex-direction: column; gap: 2px; scrollbar-width: thin; }
.learn-progress-list li a {
	display: flex; align-items: center; gap: 10px;
	padding: 7px 10px; border-radius: var(--radius-sm);
	font-size: 13.5px; color: var(--dark-muted);
	transition: background .15s, color .15s;
}
.learn-progress-list li a:hover { background: var(--dark-2); color: #fff; }
.learn-progress-list .lp-num {
	flex: 0 0 22px; height: 22px; display: grid; place-items: center;
	background: var(--dark-2); border-radius: 6px; font-size: 11.5px;
}
.learn-progress-list .lp-title { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.learn-progress-list .lp-check { opacity: 0; color: var(--accent); font-weight: 700; }
.learn-progress-list li.is-done .lp-check { opacity: 1; }
.learn-progress-list li.is-done .lp-num { background: rgba(22,163,74,.2); color: var(--accent); }
.learn-progress-list li.is-current a { background: var(--dark-2); color: #fff; }

/* ---------- نوار پیشرفت مطالعه ---------- */
.learn-readbar {
	position: fixed; top: 0; right: 0; left: 0; height: 3px;
	z-index: 200; background: transparent; pointer-events: none;
}
.learn-readbar span { display: block; height: 100%; width: 0; background: var(--primary); }

/* ---------- سرفصل‌ها (موبایل/دسکتاپ) ---------- */
.learn-toc-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.learn-toc-grid li a {
	display: flex; align-items: center; gap: 12px;
	background: var(--surface); border: 1px solid var(--border);
	border-radius: var(--radius-sm); padding: 14px 16px;
	transition: border-color .15s, transform .15s, box-shadow .15s;
}
.learn-toc-grid li a:hover { border-color: var(--primary); transform: translateY(-2px); box-shadow: var(--shadow); }
.learn-toc-grid .lt-num {
	flex: 0 0 34px; height: 34px; display: grid; place-items: center;
	background: rgba(247,160,29,.12); color: var(--primary-d);
	border-radius: 10px; font-weight: 700; font-size: 14px;
}
.learn-toc-grid .lt-body { flex: 1; min-width: 0; }
.learn-toc-grid .lt-title { display: block; font-weight: 600; font-size: 14.5px; line-height: 1.5; }
.learn-toc-grid .lt-meta { display: block; color: var(--muted); font-size: 12px; margin-top: 2px; }
.learn-toc-grid .lt-check { opacity: 0; color: var(--accent); font-weight: 700; font-size: 16px; }
.learn-toc-grid li.is-done .lt-check { opacity: 1; }
.learn-toc-grid li.is-done a { border-color: rgba(22,163,74,.4); }

/* ---------- جلسات ---------- */
.learn-lessons { background: var(--bg-2); padding: 20px 0 40px; }
.learn-lesson { padding: 26px 0; }
.learn-lesson__container { max-width: 860px; }
.learn-lesson__head { margin-bottom: 18px; }
.learn-lesson__badge {
	display: inline-block; background: rgba(247,160,29,.14); color: var(--primary-d);
	font-weight: 700; font-size: 13px; padding: 4px 14px; border-radius: 999px; margin-bottom: 10px;
}
.learn-lesson__title { font-size: clamp(21px, 2.6vw, 28px); margin: 0 0 6px; }
.learn-lesson__meta { color: var(--muted); font-size: 13.5px; display: flex; gap: 8px; margin: 0; }
.learn-lesson__done-flag { color: var(--accent); font-weight: 700; }

.learn-lesson__body,
.learn-quiz, .learn-calc {
	background: var(--surface); border: 1px solid var(--border);
	border-radius: var(--radius); padding: 26px 28px;
}
.learn-lesson__body { font-size: 15.5px; line-height: 2.1; }
.learn-lesson__body h3 { font-size: 18px; margin: 26px 0 10px; padding-inline-start: 12px; border-inline-start: 4px solid var(--primary); }
.learn-lesson__body h3:first-child { margin-top: 0; }
.learn-lesson__body p { margin-bottom: 14px; }
.learn-lesson__body ul, .learn-lesson__body ol { padding-inline-start: 22px; margin-bottom: 14px; }
.learn-lesson__body ul { list-style: disc; }
.learn-lesson__body ol { list-style: persian; }
.learn-lesson__body li { margin-bottom: 6px; }
.learn-lesson__body li::marker { color: var(--primary); }
.learn-lesson__body a { color: var(--primary-d); font-weight: 600; border-bottom: 1px dashed rgba(222,140,12,.5); }
.learn-lesson__body a:hover { border-bottom-style: solid; }

.learn-note {
	margin: 18px 0; padding: 14px 18px;
	background: rgba(247,160,29,.07);
	border-inline-start: 4px solid var(--primary);
	border-radius: var(--radius-sm);
	font-size: 14.5px;
}
.learn-note p:last-child { margin: 0; }

/* جدول‌ها */
.learn-lesson__body .learn-table-wrap, .learn-lesson__body table { margin: 16px 0; }
.learn-lesson__body table {
	width: 100%; border-collapse: collapse; font-size: 14px;
	display: block; overflow-x: auto; white-space: nowrap;
}
.learn-lesson__body table thead th {
	background: var(--surface-2); font-weight: 700;
	padding: 10px 14px; border: 1px solid var(--border); text-align: right;
}
.learn-lesson__body table td { padding: 10px 14px; border: 1px solid var(--border); }
.learn-lesson__body table tbody tr:nth-child(even) { background: var(--bg-2); }

/* ویدیو */
.learn-video { margin-bottom: 18px; }
.learn-video__frame { position: relative; padding-top: 56.25%; border-radius: var(--radius); overflow: hidden; background: var(--dark-2); }
.learn-video__frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

/* ---------- کوییز ---------- */
.learn-quiz { margin-top: 16px; }
.learn-quiz__title { font-size: 17px; margin-bottom: 4px; }
.learn-quiz__sub { color: var(--muted); font-size: 13.5px; margin-bottom: 18px; }
.learn-quiz__q { padding: 14px 0; border-top: 1px solid var(--border); }
.lq-question { font-weight: 600; font-size: 15px; margin-bottom: 12px; }
.lq-options { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.lq-opt {
	text-align: right; background: var(--bg-2); border: 1.5px solid var(--border);
	border-radius: var(--radius-sm); padding: 10px 14px; font-size: 14px;
	cursor: pointer; transition: border-color .15s, background .15s;
	line-height: 1.7;
}
.lq-opt:hover:not(:disabled) { border-color: var(--primary); }
.lq-opt:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.lq-opt:disabled { cursor: default; opacity: .75; }
.lq-opt.is-correct { background: rgba(22,163,74,.1); border-color: var(--accent); color: #15803d; font-weight: 700; opacity: 1; }
.lq-opt.is-wrong { background: rgba(220,38,38,.08); border-color: var(--danger); color: var(--danger); }
.lq-why {
	margin: 10px 0 0; font-size: 13.5px; color: var(--muted);
	background: var(--bg-2); border-radius: var(--radius-sm); padding: 10px 14px;
}
.learn-quiz.is-passed .learn-quiz__sub { color: var(--accent); font-weight: 700; }

/* ---------- ماشین‌حساب‌ها ---------- */
.learn-calc { margin-top: 16px; border-inline-start: 4px solid var(--primary); }
.learn-calc__title { font-size: 17px; margin-bottom: 4px; }
.learn-calc__sub { color: var(--muted); font-size: 13.5px; margin-bottom: 16px; }
.learn-calc__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin-bottom: 16px; }
.learn-calc__grid label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; font-weight: 600; color: var(--muted); }
.learn-calc__grid input, .learn-calc__grid select {
	border: 1.5px solid var(--border); border-radius: var(--radius-sm);
	padding: 10px 12px; font-size: 15px; background: var(--bg);
	color: var(--text); width: 100%;
}
.learn-calc__grid input:focus, .learn-calc__grid select:focus { outline: none; border-color: var(--primary); }
.learn-calc__result {
	display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 10px;
}
.learn-calc__result .cr {
	background: var(--bg-2); border-radius: var(--radius-sm); padding: 12px 14px; text-align: center;
}
.learn-calc__result .cr b { display: block; font-size: 17px; margin-top: 2px; }
.learn-calc__result .cr small { color: var(--muted); font-size: 12px; }
.learn-calc__result .cr.good b { color: var(--accent); }
.learn-calc__result .cr.bad b { color: var(--danger); }
.learn-calc__result .cr.warn b { color: var(--primary-d); }
.learn-calc__note { grid-column: 1 / -1; font-size: 12.5px; color: var(--muted); margin: 4px 0 0; }

/* ---------- فوتر جلسه ---------- */
.learn-lesson__foot { display: flex; flex-wrap: wrap; gap: 10px; justify-content: space-between; margin-top: 16px; }
.learn-mark-done.is-done { border-color: var(--accent); color: var(--accent); }

/* ---------- CTA میانی ---------- */
.learn-band { background: var(--dark-2); color: #fff; padding: 40px 0; margin: 20px 0; }
.learn-band__inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 20px; }
.learn-band h2 { color: #fff; font-size: clamp(20px, 2.6vw, 26px); margin-bottom: 6px; }
.learn-band p { color: var(--dark-muted); margin: 0; max-width: 56ch; }
.learn-band__actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- FAQ / نویسنده ---------- */
.learn-faq-section { background: var(--bg-2); }
.learn-faq { max-width: 860px; }
.learn-faq details p a { color: var(--primary-d); font-weight: 600; }

.learn-author {
	display: flex; gap: 18px; align-items: flex-start;
	background: var(--surface); border: 1px solid var(--border);
	border-radius: var(--radius); padding: 24px 28px; max-width: 860px;
}
.learn-author__avatar {
	flex: 0 0 56px; height: 56px; display: grid; place-items: center;
	background: var(--dark-2); color: var(--primary);
	font-size: 26px; font-weight: 800; border-radius: 50%;
}
.learn-author strong { font-size: 16px; }
.learn-author p { color: var(--muted); font-size: 14px; margin: 6px 0 0; }

/* ---------- ریسپانسیو ---------- */
@media (max-width: 900px) {
	.learn-hero__inner { grid-template-columns: 1fr; }
	.learn-hero__panel { display: none; }
	.learn-toc-grid { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 901px) {
	.learn-toc-mobile { display: none; }
}
@media (max-width: 560px) {
	.learn-toc-grid { grid-template-columns: 1fr; }
	.lq-options { grid-template-columns: 1fr; }
	.learn-lesson__body, .learn-quiz, .learn-calc { padding: 20px 18px; }
	.learn-lesson__foot { flex-direction: column; }
	.learn-lesson__foot .btn { width: 100%; text-align: center; }
}
@media (prefers-reduced-motion: reduce) {
	.learn-progress-bar span, .learn-toc-grid li a { transition: none; }
}