/* ============================================================
   FREE COURSE («جزوه‌های رایگان») — learning/a1.html (roadmap + cards)
   and learning/a1-lesson-N.html (one lesson). Markup: js/course-render.js.
   Colours follow the paid lesson notes (css/pages/lesson.css): warm paper,
   one steady accent per stage, Kalameh for every word (Persian and German).
   ============================================================ */
.page-course {
    --crs-paper: #F4F1E9;
    --crs-surface: #FFFFFF;
    --crs-soft: #FBF9F4;
    --crs-border: #E5DFCD;
    --crs-border-strong: #D7CFB6;
    --crs-text: #24211C;
    --crs-text-2: #6B6357;
    --crs-muted: #746E5F;
    --crs-blue: #2B5C82;
    --crs-blue-soft: rgba(43, 92, 130, 0.09);
    --crs-tag: #A3512F;
    --crs-success: #1F7A4C;
    --crs-success-bg: #E7F5EC;
    --crs-error: #B23A2E;
    --crs-error-bg: #FBEAE6;
    --crs-gold: #8A6720;
    --crs-gold-soft: #FBF3E1;
    --crs-shadow: 0 6px 20px rgba(36, 33, 28, 0.08);
    --crs-accent: var(--crs-blue);
}
[data-theme="dark"] .page-course {
    --crs-paper: #14171C;
    --crs-surface: #1B1F26;
    --crs-soft: #20242C;
    --crs-border: rgba(226, 220, 199, 0.12);
    --crs-border-strong: rgba(226, 220, 199, 0.2);
    --crs-text: #EDEAE1;
    --crs-text-2: rgba(237, 234, 225, 0.72);
    --crs-muted: rgba(237, 234, 225, 0.48);
    --crs-blue: #6FA3D8;
    --crs-blue-soft: rgba(111, 163, 216, 0.14);
    --crs-tag: #D98A63;
    --crs-success: #4CBE85;
    --crs-success-bg: rgba(76, 190, 133, 0.14);
    --crs-error: #E2766A;
    --crs-error-bg: rgba(226, 118, 106, 0.14);
    --crs-gold: #E0B65E;
    --crs-gold-soft: rgba(224, 182, 94, 0.12);
    --crs-shadow: 0 6px 24px rgba(0, 0, 0, 0.35);
}
/* one accent per stage (same as the lesson covers) */
.page-course [data-stage="1"] { --crs-accent: #2B5C82; }
.page-course [data-stage="2"] { --crs-accent: #A3512F; }
.page-course [data-stage="3"] { --crs-accent: #1F7A4C; }
.page-course [data-stage="4"] { --crs-accent: #8A6720; }
.page-course [data-stage="5"] { --crs-accent: #5E4A9E; }
.page-course [data-stage="6"] { --crs-accent: #7A2331; }
[data-theme="dark"] .page-course [data-stage="1"] { --crs-accent: #6FA3D8; }
[data-theme="dark"] .page-course [data-stage="2"] { --crs-accent: #D98A63; }
[data-theme="dark"] .page-course [data-stage="3"] { --crs-accent: #4CBE85; }
[data-theme="dark"] .page-course [data-stage="4"] { --crs-accent: #E0B65E; }
[data-theme="dark"] .page-course [data-stage="5"] { --crs-accent: #A996E0; }
[data-theme="dark"] .page-course [data-stage="6"] { --crs-accent: #E08A96; }

.crs-page, .crs-page *, .crs-page [lang="de"] { font-family: 'Kalameh', sans-serif; }
.crs-page { max-width: 1240px; color: var(--crs-text); }
.crs-lesson { max-width: 1040px; }
.crs-page [lang="de"] { unicode-bidi: isolate; }

.crs-badge {
    display: inline-flex; align-items: center; gap: 6px; align-self: flex-start;
    padding: 6px 14px; border-radius: 99px; font-size: 13px; font-weight: 700;
    background: var(--crs-surface); color: var(--crs-accent); border: 1px solid var(--crs-border);
}

/* ---- Level hero ---- */
.crs-level-hero {
    display: flex; flex-direction: column; align-items: center; text-align: center; gap: 14px;
    padding: 36px 28px; border-radius: 28px; background: var(--crs-surface);
    border: 1px solid var(--crs-border); box-shadow: var(--crs-shadow);
}
.crs-level-hero .crs-badge { align-self: center; }
.crs-level-title { margin: 0; display: flex; flex-direction: column; align-items: center; gap: 4px; font-size: clamp(24px, 3.4vw, 34px); font-weight: 900; line-height: 1.35; }
.crs-level-code { font-size: clamp(56px, 8vw, 88px); line-height: 1; color: var(--crs-blue); font-weight: 900; }
.crs-lead { margin: 0; max-width: 720px; font-size: 16px; line-height: 2; color: var(--crs-text-2); }
.crs-level-hero .lc-cta-actions { justify-content: center; }

/* ---- Roadmap ---- */
.crs-roadmap { padding: 24px; border-radius: 24px; background: var(--crs-surface); border: 1px solid var(--crs-border); }
.crs-roadmap-title { margin: 0 0 16px; font-size: 18px; font-weight: 900; }
.crs-roadmap ol { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 10px; counter-reset: none; }
.crs-roadmap li { position: relative; }
.crs-roadmap li:not(:last-child)::after {
    content: ''; position: absolute; top: 24px; left: -10px; width: 10px; height: 2px; background: var(--crs-border-strong);
}
.crs-roadmap a {
    display: flex; flex-direction: column; align-items: flex-start; gap: 8px; height: 100%;
    padding: 12px; border-radius: 16px; text-decoration: none; color: inherit;
    background: var(--crs-soft); border: 1px solid var(--crs-border); transition: border-color .2s ease, transform .2s ease;
}
.crs-roadmap a:hover { border-color: var(--crs-blue); transform: translateY(-2px); }
.crs-step-num { width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; font-weight: 900; font-size: 14px; background: var(--crs-blue); color: #fff; }
.crs-roadmap li:nth-child(2) .crs-step-num { background: #A3512F; }
.crs-roadmap li:nth-child(3) .crs-step-num { background: #1F7A4C; }
.crs-roadmap li:nth-child(4) .crs-step-num { background: #8A6720; }
.crs-roadmap li:nth-child(5) .crs-step-num { background: #5E4A9E; }
.crs-roadmap li:nth-child(6) .crs-step-num { background: #7A2331; }
.crs-step-text { display: flex; flex-direction: column; gap: 2px; }
.crs-step-text strong { font-size: 14px; font-weight: 800; line-height: 1.6; }
.crs-step-text small { font-size: 12px; color: var(--crs-muted); }

/* ---- Stage + 4-column cards ---- */
.crs-stage { scroll-margin-top: 110px; display: flex; flex-direction: column; gap: 14px; }
.crs-stage-head { display: flex; align-items: center; flex-wrap: wrap; gap: 10px 14px; padding-inline-start: 14px; border-inline-start: 4px solid var(--crs-accent); }
.crs-stage-head h2 { margin: 0; font-size: 22px; font-weight: 900; }
.crs-stage-badge { font-size: 12px; font-weight: 800; padding: 4px 12px; border-radius: 99px; background: var(--crs-accent); color: #fff; }
.crs-stage-range { font-size: 13px; color: var(--crs-muted); }
.crs-grid { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.crs-card {
    display: flex; flex-direction: column; height: 100%; overflow: hidden; text-decoration: none; color: inherit;
    border-radius: 20px; background: var(--crs-surface); border: 1px solid var(--crs-border); box-shadow: var(--crs-shadow);
    transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.crs-card:hover { transform: translateY(-4px); border-color: var(--crs-accent); box-shadow: 0 14px 30px rgba(36, 33, 28, 0.12); }
.crs-card-img { display: block; aspect-ratio: 40 / 21; background: var(--crs-soft); border-bottom: 1px solid var(--crs-border); }
.crs-card-img img { display: block; width: 100%; height: 100%; object-fit: cover; }
.crs-card-body { display: flex; align-items: flex-start; gap: 12px; padding: 14px 14px 16px; flex: 1; }
.crs-card-num { flex-shrink: 0; font-size: 44px; font-weight: 900; line-height: .95; color: var(--crs-accent); letter-spacing: -1px; }
.crs-card-text { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.crs-card-kicker { font-size: 11.5px; color: var(--crs-muted); }
.crs-card-title { font-size: 15.5px; font-weight: 900; line-height: 1.6; }
.crs-card-de { font-size: 13.5px; font-weight: 700; color: var(--crs-accent); text-align: right; }
.crs-card-meta { margin-top: 2px; font-size: 12px; color: var(--crs-text-2); }

/* ---- Lesson hero + cover ---- */
.crs-lesson-hero {
    display: flex; align-items: stretch; gap: 24px; padding: 28px; border-radius: 28px;
    background: var(--crs-surface); border: 1px solid var(--crs-border); box-shadow: var(--crs-shadow);
}
.crs-hero-num {
    flex-shrink: 0; display: grid; place-items: center; min-width: 120px; padding: 0 12px; border-radius: 22px;
    font-size: 84px; font-weight: 900; line-height: 1; color: #fff; background: var(--crs-accent);
}
.crs-hero-text { display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.crs-lesson-title { margin: 6px 0 0; font-size: clamp(24px, 3.4vw, 34px); font-weight: 900; line-height: 1.4; }
.crs-lesson-de { margin: 0; font-size: 20px; font-weight: 800; color: var(--crs-accent); text-align: right; }
.crs-meta { margin: 0; font-size: 13px; color: var(--crs-muted); }
.crs-topics { list-style: none; margin: 4px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.crs-topics li { padding: 4px 12px; border-radius: 99px; font-size: 12.5px; font-weight: 700; background: var(--crs-soft); border: 1px solid var(--crs-border); color: var(--crs-text-2); }
.crs-cover { margin: 0; border-radius: 24px; overflow: hidden; border: 1px solid var(--crs-border); box-shadow: var(--crs-shadow); aspect-ratio: 40 / 21; background: var(--crs-soft); }
.crs-cover img { display: block; width: 100%; height: 100%; object-fit: cover; }

/* ---- Lesson body ---- */
.crs-body {
    display: flex; flex-direction: column; gap: 16px; padding: 32px; border-radius: 28px;
    background: var(--crs-surface); border: 1px solid var(--crs-border); box-shadow: var(--crs-shadow);
    font-size: 16px; line-height: 2.05; color: var(--crs-text);
}
.crs-body p { margin: 0; }
.crs-body strong { font-weight: 800; }
.crs-body a { color: var(--crs-blue); }
.crs-h2 {
    margin: 18px 0 0; font-size: 21px; font-weight: 900; line-height: 1.6;
    padding-inline-start: 12px; border-inline-start: 4px solid var(--crs-accent);
}
.crs-h3 { margin: 6px 0 0; font-size: 17px; font-weight: 800; }
.crs-box-title { margin: 0 0 10px; font-size: 16px; font-weight: 900; color: var(--crs-accent); }
.crs-list { margin: 0; padding-inline-start: 22px; display: flex; flex-direction: column; gap: 6px; }
.crs-list li::marker { color: var(--crs-accent); }

.crs-goals, .crs-summary { padding: 18px 20px; border-radius: 18px; background: var(--crs-soft); border: 1px solid var(--crs-border); }
.crs-goals ul, .crs-summary ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.crs-goals li, .crs-summary li { position: relative; padding-inline-start: 28px; }
.crs-goals li::before, .crs-summary li::before {
    content: '✓'; position: absolute; inset-inline-start: 0; top: 4px; width: 20px; height: 20px; border-radius: 50%;
    display: grid; place-items: center; font-size: 12px; font-weight: 900; color: #fff; background: var(--crs-accent); line-height: 1;
}
.crs-summary { border: 2px dashed var(--crs-accent); background: transparent; }

/* dialogue as a conversation */
.crs-dialogue { padding: 18px 20px; border-radius: 18px; background: var(--crs-soft); border: 1px solid var(--crs-border); }
.crs-scene { color: var(--crs-text-2); font-size: 14.5px; margin-bottom: 12px !important; }
.crs-turns { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.crs-turn { max-width: 82%; align-self: flex-start; padding: 10px 14px; border-radius: 16px 16px 16px 4px; background: var(--crs-surface); border: 1px solid var(--crs-border); }
.crs-turn.is-other { align-self: flex-end; border-radius: 16px 16px 4px 16px; background: var(--crs-blue-soft); }
.crs-who { display: block; font-size: 12px; font-weight: 900; color: var(--crs-accent); text-align: left; }
.crs-turn .crs-de { font-size: 16.5px; font-weight: 800; text-align: left; line-height: 1.8; }
.crs-turn .crs-fa { font-size: 14px; color: var(--crs-text-2); line-height: 1.9; }

/* tables like the paid notes */
.crs-table { overflow-x: auto; border-radius: 16px; border: 1px solid var(--crs-border); }
.crs-table table { width: 100%; border-collapse: collapse; font-size: 15px; line-height: 1.8; }
.crs-table th { padding: 10px 14px; text-align: start; font-weight: 900; font-size: 14px; color: var(--crs-accent); background: var(--crs-soft); border-bottom: 2px solid var(--crs-accent); white-space: nowrap; }
.crs-table td { padding: 9px 14px; border-top: 1px solid var(--crs-border); vertical-align: top; }
.crs-table tbody tr:nth-child(even) td { background: var(--crs-soft); }
.crs-table td span[lang="de"] { font-weight: 700; }

/* examples DE → FA */
.crs-examples { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.crs-examples li { display: flex; flex-direction: column; gap: 2px; padding: 10px 14px; border-radius: 14px; background: var(--crs-soft); border-inline-start: 4px solid var(--crs-accent); }
.crs-examples .crs-de { font-weight: 800; font-size: 16.5px; text-align: left; line-height: 1.8; }
.crs-examples .crs-fa { font-size: 14.5px; color: var(--crs-text-2); }

/* wrong → right */
.crs-compare { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.crs-compare li { display: grid; grid-template-columns: 1fr 1fr; gap: 4px 12px; padding: 10px 14px; border-radius: 14px; border: 1px solid var(--crs-border); }
.crs-no { color: var(--crs-error); text-decoration: line-through; text-decoration-thickness: 1px; }
.crs-no::before { content: '✗ '; text-decoration: none; display: inline-block; margin-inline-end: 4px; }
.crs-yes { color: var(--crs-success); font-weight: 800; }
.crs-yes::before { content: '✓ '; display: inline-block; margin-inline-end: 4px; }
.crs-compare small { grid-column: 1 / -1; font-size: 13.5px; color: var(--crs-text-2); }

/* callouts */
.crs-callout { margin: 0; padding: 14px 18px; border-radius: 16px; border: 1px solid transparent; }
.crs-callout > strong { display: block; margin-bottom: 2px; font-size: 14px; font-weight: 900; }
.crs-callout.is-tip { background: var(--crs-blue-soft); border-color: var(--crs-blue-soft); }
.crs-callout.is-tip > strong { color: var(--crs-blue); }
.crs-callout.is-warn { background: var(--crs-error-bg); }
.crs-callout.is-warn > strong { color: var(--crs-error); }
.crs-callout.is-joke { background: var(--crs-gold-soft); border: 1px dashed var(--crs-gold); }
.crs-callout.is-joke > strong { color: var(--crs-gold); }
.crs-callout.is-joke > strong::before { content: '😄 '; }

/* exercises */
.crs-exercises { padding: 18px 20px; border-radius: 18px; background: var(--crs-soft); border: 1px solid var(--crs-border); }
.crs-exercises ol { margin: 0; padding-inline-start: 22px; display: flex; flex-direction: column; gap: 12px; }
.crs-exercises li::marker { font-weight: 900; color: var(--crs-accent); }
.crs-exercises details { margin-top: 4px; }
.crs-exercises summary { cursor: pointer; font-size: 13px; font-weight: 800; color: var(--crs-accent); width: fit-content; }
.crs-exercises details p { margin-top: 4px; padding: 8px 12px; border-radius: 12px; background: var(--crs-success-bg); color: var(--crs-success); font-weight: 700; }

/* pager */
.crs-pager { display: grid; grid-template-columns: 1fr auto 1fr; gap: 12px; align-items: stretch; }
.crs-pager-link {
    display: flex; align-items: center; gap: 10px; padding: 14px 16px; border-radius: 18px; text-decoration: none; color: inherit;
    background: var(--crs-surface); border: 1px solid var(--crs-border); transition: border-color .2s ease;
}
.crs-pager-link:hover { border-color: var(--crs-accent); }
.crs-pager-link.is-next { justify-content: flex-end; text-align: left; }
.crs-pager-link svg { width: 20px; height: 20px; flex-shrink: 0; color: var(--crs-accent); }
.crs-pager-link span { display: flex; flex-direction: column; font-weight: 800; font-size: 14.5px; line-height: 1.7; }
.crs-pager-link small { font-size: 12px; font-weight: 500; color: var(--crs-muted); }
.crs-pager-up { align-self: center; padding: 10px 16px; border-radius: 99px; font-size: 13px; font-weight: 800; text-decoration: none; color: var(--crs-accent); border: 1px solid var(--crs-border); background: var(--crs-surface); white-space: nowrap; }

/* ---- Responsive ---- */
@media (max-width: 1100px) {
    .crs-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .crs-roadmap ol { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .crs-roadmap li::after { display: none; }
}
@media (max-width: 820px) {
    .crs-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .crs-body { padding: 20px 16px; font-size: 15.5px; }
    .crs-lesson-hero { flex-direction: column; padding: 20px; gap: 14px; }
    .crs-hero-num { align-self: flex-start; min-width: 0; font-size: 52px; padding: 10px 18px; border-radius: 16px; }
    .crs-pager { grid-template-columns: 1fr 1fr; }
    .crs-pager-up { grid-column: 1 / -1; grid-row: 2; justify-self: center; }
    .crs-turn { max-width: 94%; }
}
@media (max-width: 560px) {
    .crs-grid { grid-template-columns: 1fr; }
    .crs-table table { font-size: 13.5px; }
    .crs-table th { white-space: normal; padding: 8px 10px; }
    .crs-table td { padding: 8px 10px; overflow-wrap: break-word; }
    .crs-roadmap { padding: 16px; }
    .crs-roadmap ol { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .crs-level-hero { padding: 26px 16px; }
    .crs-compare li { grid-template-columns: 1fr; }
    .crs-card-num { font-size: 40px; }
}