:root {
  color-scheme: light;
  --ink: #0d151e;
  --muted: #5e6770;
  --paper: #edf0f1;
  --white: #fff;
  --line: #d7dcdf;
  --lime: #84ee5b;
  --lime-dark: #4fcf25;
  --red: #d63d2c;
  --red-soft: #fff0ed;
  --green: #1b8158;
  --radius: 22px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--paper); color: var(--ink); font-size: 16px; line-height: 1.55; }
button, input { font: inherit; }
button { cursor: pointer; }
.hidden { display: none !important; }
.honeypot { position: absolute !important; left: -10000px !important; width: 1px !important; height: 1px !important; overflow: hidden !important; }
.prototype-note { background: var(--red); color: white; padding: .45rem 1rem; text-align: center; font-size: .78rem; font-weight: 750; letter-spacing: .03em; }
.app-shell { width: min(100%, 1180px); min-height: calc(100vh - 34px); margin: 0 auto; padding: 0 22px 56px; }
.topbar { display: flex; align-items: center; justify-content: space-between; margin-top: 14px; padding: 18px 20px; border-radius: 18px; background: var(--ink); }
.brand { display: flex; align-items: center; text-decoration: none; }
.brand img { display: block; width: 168px; height: auto; }
.language-menu-wrap { position: relative; }
.language-shortcut { border: 1px solid rgba(255,255,255,.26); color: white; background: transparent; border-radius: 999px; min-width: 48px; padding: .45rem .75rem; font-weight: 800; }
.language-shortcut[aria-expanded="true"] { border-color: var(--lime); }
.language-chevron { margin-left: 3px; font-size: .72rem; }
.language-menu { position: absolute; z-index: 20; top: calc(100% + 10px); right: 0; width: 230px; padding: 8px; border: 1px solid var(--line); border-radius: 15px; background: white; box-shadow: 0 18px 44px rgba(13,21,30,.2); }
.language-menu button { display: flex; align-items: center; gap: 10px; width: 100%; min-height: 44px; padding: 8px 10px; border: 0; border-radius: 9px; color: var(--ink); background: transparent; text-align: left; font-weight: 750; }
.language-menu button:hover, .language-menu button:focus-visible { background: #f0f3f5; }
.language-menu button:disabled { cursor: default; opacity: .46; }
.language-menu button small { margin-left: auto; color: var(--muted); font-size: .68rem; font-weight: 600; }
.language-screen { margin-top: 14px; padding: clamp(28px, 5vw, 58px); border: 1px solid var(--line); border-radius: 28px; background: white; box-shadow: 0 24px 60px rgba(13,21,30,.1); }
.language-screen h1, .lesson-card h1, .registration h1, .success h1 { margin: .35rem 0 1rem; font-size: clamp(2.35rem, 7vw, 4.7rem); line-height: .98; letter-spacing: -.055em; }
.language-screen .lead { max-width: 760px; margin-bottom: 24px; color: var(--muted); font-size: clamp(1rem, 2vw, 1.2rem); }
.eyebrow { margin: 0; color: var(--red); font-size: .77rem; font-weight: 900; letter-spacing: .13em; }
.language-screen .eyebrow { color: var(--red); }
.lead { margin: 0 0 2rem; color: var(--muted); font-size: 1.08rem; }
.warranty-intro { max-width: 850px; }
.warranty-message, .warranty-reward { display: flex; align-items: center; gap: 16px; padding: 18px 20px; border-radius: 16px; }
.warranty-message { border: 1px solid #efb2aa; background: var(--red-soft); }
.warranty-message p, .warranty-reward p { margin: 0; }
.warranty-message-icon { display: grid; place-items: center; flex: 0 0 auto; width: 40px; height: 40px; border-radius: 50%; color: white; background: var(--red); font-size: 1.25rem; font-weight: 950; }
.warranty-reward { margin-top: 12px; border: 1px solid #a9dd98; background: #f1ffed; }
.warranty-years { display: grid; place-items: center; flex: 0 0 auto; width: 52px; height: 52px; border-radius: 14px; color: var(--ink); background: var(--lime); font-size: 2rem; font-weight: 950; line-height: 1; }
.warranty-reward strong { font-size: 1.08rem; }
.warranty-reward small { color: var(--muted); }
.language-picker { margin-top: 36px; padding-top: 28px; border-top: 1px solid var(--line); }
.language-picker-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; margin-bottom: 16px; }
.language-picker-heading h2 { margin: 0; font-size: 1.4rem; }
.language-picker-heading span { color: var(--muted); font-size: .9rem; }
.language-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.language-card { display: grid; grid-template-columns: auto 1fr; align-items: center; gap: 3px 13px; min-height: 94px; padding: 15px 17px; text-align: left; border: 1px solid var(--line); border-radius: 16px; color: var(--ink); background: #f8fafb; transition: transform .18s, border-color .18s, box-shadow .18s; }
.language-card:hover, .language-card:focus-visible { transform: translateY(-2px); border-color: var(--red); box-shadow: 0 8px 20px rgba(13,21,30,.08); }
.language-card-selected { border: 2px solid var(--red); background: var(--red-soft); }
.language-card .flag { grid-row: 1 / 3; font-size: 2rem; line-height: 1; }
.language-card .language-name { font-size: 1.05rem; font-weight: 850; }
.language-card small { color: var(--muted); }
.language-card-soon { cursor: default; opacity: .52; }
.language-card-soon:hover { transform: none; border-color: var(--line); box-shadow: none; }
.language-start { display: block; width: min(100%, 360px); margin: 22px 0 0 auto; }
.course { padding-top: 14px; }
.progress-wrap { position: sticky; top: 0; z-index: 5; padding: 12px 0 16px; background: linear-gradient(var(--paper) 76%, transparent); }
.progress-meta { display: flex; justify-content: space-between; color: var(--muted); font-size: .82rem; font-weight: 750; }
.progress-track { height: 7px; margin-top: 8px; overflow: hidden; border-radius: 99px; background: var(--line); }
.progress-fill { width: 16.666%; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--lime-dark), var(--lime)); transition: width .35s ease; }
.lesson-card, .registration, .success { position: relative; padding: clamp(26px, 6vw, 56px); border: 1px solid var(--line); border-radius: 30px; background: var(--white); box-shadow: 0 20px 55px rgba(16,24,38,.08); }
.lesson-card h1, .registration h1, .success h1 { max-width: 680px; font-size: clamp(2rem, 5.4vw, 3.65rem); }
.lesson-index { position: absolute; top: 28px; right: 34px; color: #e6eaf0; font-size: 4rem; font-weight: 950; line-height: 1; }
.lesson-intro { max-width: 650px; color: var(--muted); font-size: 1.06rem; }
.video-column { min-width: 0; }
.video-heading { margin: 0 0 12px; font-size: 1.35rem; letter-spacing: -.025em; }
.video-panel { position: relative; display: flex; align-items: center; gap: 15px; min-height: 150px; margin: 28px 0; padding: 24px; overflow: hidden; border-radius: 22px; color: white; background-color: var(--ink); background-repeat: no-repeat; background-size: cover; }
.video-panel::before { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(16,24,38,.97), rgba(16,24,38,.6) 60%, rgba(16,24,38,.18)); }
.video-safety { background-image: url('assets/manual-ski-mode.png'); background-position: center 5%; }
.video-fit { background-image: url('assets/manual-ski-mode.png'); background-position: center 47%; }
.video-ski { background-image: url('assets/manual-ski-mode.png'); background-position: center 83%; }
.video-snowshoe { background-image: url('assets/manual-snowshoe-mode.png'); background-position: center 47%; }
.video-care { background-image: url('assets/manual-snowshoe-mode.png'); background-position: center 9%; }
.video-play, .video-copy, .video-time { position: relative; z-index: 1; }
.video-live { display: block; width: min(100%, 420px); min-height: 0; margin: 0 auto; padding: 0; background: #000; aspect-ratio: 9 / 16; }
.video-live::before { display: none; }
.video-live video { display: block; width: 100%; height: 100%; border-radius: inherit; object-fit: contain; background: #000; }
.video-live .video-time { position: absolute; top: 12px; right: 12px; pointer-events: none; }
.video-care-icon { padding-left: 0; }
.video-play { display: grid; place-items: center; flex: 0 0 auto; width: 56px; height: 56px; padding-left: 4px; border-radius: 50%; color: var(--ink); background: var(--lime); }
.video-copy { display: grid; gap: 3px; }
.video-copy b { font-size: 1.06rem; }
.video-copy small { color: #cbd3e0; }
.video-time { margin-left: auto; padding: 5px 8px; border-radius: 7px; background: rgba(0,0,0,.5); font-size: .75rem; font-weight: 800; }
.lesson-points { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; padding: 0; margin: 0 0 22px; list-style: none; }
.lesson-points li { display: grid; grid-template-columns: 112px 1fr; align-items: stretch; min-height: 118px; overflow: hidden; border: 1px solid var(--line); border-radius: 16px; background: #f8fafc; font-weight: 700; }
.lesson-points .point-section-title { display: block; min-height: 0; padding: 0 0 3px; overflow: visible; border: 0; border-radius: 0; background: transparent; }
.point-section-title h2 { margin: 0; font-size: 1.35rem; letter-spacing: -.025em; }
.point-section-title-secondary { margin-top: 10px; }
.mode-points { grid-template-columns: 1fr; }
.mode-points .stacked-visual { display: flex; flex-direction: column; }
.mode-points .stacked-visual .point-image { width: 100%; min-height: 0; aspect-ratio: 5 / 3; border-right: 0; border-bottom: 1px solid var(--line); }
.mode-points .stacked-visual .point-text { min-height: 86px; }
.point-image { min-height: 118px; border-right: 1px solid var(--line); background-color: white; background-repeat: no-repeat; }
.supplied-diagram { background-size: contain; background-position: center; }
.snowshoe-correct { background-image: url('assets/sneznice-spravne.png'); }
.snowshoe-pin { background-image: url('assets/sneznice-spravne-2.png'); }
.snowshoe-wrong { background-image: url('assets/sneznice-spatne.png'); }
.mini-ski-step-one { background-image: url('assets/mini-lyze-zapnuti-1.png'); }
.mini-ski-step-two { background-image: url('assets/mini-lyze-zapnuti-2.png'); }
.mini-ski-secured { background-image: url('assets/mini-lyze-zapnuti-3.png'); }
.setup-one { background-image: url('assets/nastaveni-1.png'); }
.setup-two { background-image: url('assets/nastaveni-2.png'); }
.setup-three { background-image: url('assets/nastaveni-3.png'); }
.setup-four { background-image: url('assets/nastaveni-4.png'); }
.downhill-helmet { background-image: url('assets/sjezd-1.png'); }
.downhill-turn { background-image: url('assets/sjezd-4.png'); }
.downhill-brake { background-image: url('assets/sjezd-3.png'); }
.conditions-surface { background-image: url('assets/podminky-1.png'); }
.conditions-boot { background-image: url('assets/podminky-2.png'); }
.snowshoe-clear { background-image: url('assets/sneznice-guide-3.png'); }
.snowshoe-release { background-image: url('assets/sneznice-guide-1.png'); }
.snowshoe-base { background-image: url('assets/sneznice-guide-2.png'); }
.snowshoe-align { background-image: url('assets/sneznice-guide-4.png'); }
.snowshoe-tighten { background-image: url('assets/sneznice-guide-5.png'); }
.care-pack { background-image: url('assets/udrzba-1.png'); }
.care-dry { background-image: url('assets/udrzba-2.png'); }
.mode-points .text-only-point .point-text { min-height: 150px; padding: 28px 28px 28px 54px; background: linear-gradient(135deg, #f8fafc, #eef2f4); font-size: 1.08rem; }
.mode-points .text-only-point .point-text::before { left: 25px; }
.point-text { position: relative; display: flex; align-items: center; padding: 16px 14px 16px 40px; }
.point-text::before { content: "✓"; position: absolute; left: 15px; color: var(--green); font-weight: 950; }
.manual-p1 { background-image: url('assets/manual-ski-mode.png'); background-size: 400% auto; }
.manual-p2 { background-image: url('assets/manual-snowshoe-mode.png'); background-size: 400% auto; }
.c1 { background-position-x: 0%; } .c2 { background-position-x: 33.33%; } .c3 { background-position-x: 66.66%; } .c4 { background-position-x: 100%; }
.r-head { background-position-y: 4%; } .r1 { background-position-y: 43%; } .r2 { background-position-y: 69%; } .r3 { background-position-y: 98%; }
.wide-head { background-size: 215% auto; background-position: 55% 4%; }
.wide-top { background-size: 205% auto; background-position: 5% 35%; }
.quiz { margin: 0; padding: 22px; border: 2px solid var(--ink); border-radius: 18px; }
.quiz-heading { display: flex; align-items: center; justify-content: space-between; gap: 14px; margin-bottom: 16px; }
.quiz-heading h2 { margin: 0; font-size: 1.22rem; }
.quiz-heading span { padding: 5px 9px; border-radius: 999px; color: var(--ink); background: var(--lime); font-size: .74rem; font-weight: 900; }
.quiz-item { min-width: 0; margin: 12px 0 0; padding: 18px; border: 1px solid var(--line); border-radius: 12px; transition: background-color .18s, border-color .18s; }
.quiz-item:first-child { margin-top: 0; }
.quiz-item legend { float: left; width: 100%; margin-bottom: 12px; padding: 0; font-weight: 850; }
.quiz-item .answer { clear: both; }
.quiz-item.quiz-correct { background: #eaf7ed; border-color: #78b98a; }
.quiz-item.quiz-error { background: #fff0ef; border-color: #df8c85; }
.quiz-item.quiz-correct .question-number { color: var(--green); }
.quiz-item.quiz-correct .answer, .quiz-item.quiz-error .answer { background: transparent; }
.language-shortcut { display: grid; place-items: center; width: 44px; height: 44px; padding: 9px; }
.language-shortcut svg { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.question-number { color: var(--red); margin-right: 6px; }
.question-feedback { min-height: 1.25rem; margin: 7px 0 0; color: var(--red); font-size: .86rem; font-weight: 750; }
.question-feedback.correct { color: var(--green); }
.answer { display: flex; align-items: flex-start; gap: 11px; margin-top: 10px; padding: 13px; border: 1px solid var(--line); border-radius: 13px; cursor: pointer; }
.answer:has(input:checked) { border-color: var(--red); background: var(--red-soft); }
.answer input { margin-top: 4px; accent-color: var(--red); }
.feedback { min-height: 1.5rem; margin: 12px 0 0; font-weight: 750; }
.feedback.error { color: var(--red); }
.feedback.correct { color: var(--green); }
.lesson-actions { display: flex; gap: 12px; justify-content: space-between; margin-top: 18px; }
.lesson-actions .back-icon-only { display: grid; place-items: center; min-width: 52px; min-height: 52px; padding: 12px; }
.back-icon-only svg { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.button { min-height: 52px; padding: 0 22px; border-radius: 14px; border: 1px solid transparent; font-weight: 850; }
.button-primary { color: var(--ink); background: var(--lime); box-shadow: 0 9px 20px rgba(79,207,37,.22); }
.button-primary:hover { background: #72e84a; }
.button-ghost { border-color: var(--line); background: white; }
.button:focus-visible, input:focus-visible { outline: 3px solid rgba(214,61,44,.28); outline-offset: 2px; }
.registration, .success { margin-top: 14px; }
.completion-badge, .success-icon { display: grid; place-items: center; width: 58px; height: 58px; margin-bottom: 22px; border-radius: 18px; color: var(--ink); background: var(--lime); font-size: 1.7rem; font-weight: 950; }
.form-grid { display: grid; grid-template-columns: 1fr; gap: 15px; }
.field { display: grid; gap: 7px; font-weight: 780; }
.field em { color: var(--muted); font-size: .78rem; font-style: normal; font-weight: 600; }
.field input, .field select { width: 100%; min-height: 52px; padding: 0 14px; border: 1px solid #bec7d4; border-radius: 12px; color: var(--ink); background: white; font: inherit; }
.warranty-choice { display: grid; gap: 12px; margin: 28px 0 18px; padding: 0; border: 0; }
.warranty-choice legend { margin-bottom: 10px; font-weight: 900; }
.choice-card { position: relative; display: flex; align-items: center; gap: 14px; min-height: 92px; padding: 18px; border: 1px solid var(--line); border-radius: 16px; cursor: pointer; }
.choice-card:has(input:checked) { border: 2px solid var(--red); background: var(--red-soft); }
.choice-card input { accent-color: var(--red); }
.choice-card strong, .choice-card small { display: block; }
.choice-card small { margin-top: 3px; color: var(--muted); }
.choice-copy { padding-right: 72px; }
.choice-featured { border-color: #82c66b; background: #f4fff0; }
.year-badge { position: absolute; right: 15px; top: 15px; padding: 5px 8px; border-radius: 8px; color: var(--ink); background: var(--lime); font-size: .7rem; font-weight: 950; }
.extended-consents { display: grid; gap: 18px; margin: 24px 0; padding: 0; border: 0; background: transparent; }
.warranty-program { padding: 24px 0 0; border: 0; border-top: 1px solid var(--line); background: transparent; }
.program-header { max-width: 760px; margin: 0 auto; text-align: center; }
.program-eyebrow { margin: 0 0 10px; color: var(--red); font-size: .72rem; font-weight: 950; letter-spacing: .11em; }
.program-header h2 { margin: 0; font-size: clamp(1.55rem, 4.4vw, 2.35rem); line-height: 1.08; letter-spacing: -.04em; }
.program-header > p:last-child { margin: 12px 0 0; color: #46505e; }
.program-timing { display: flex; align-items: flex-start; gap: 11px; max-width: 760px; margin: 22px auto 0; padding: 14px 16px; border-left: 4px solid var(--lime); border-radius: 4px 11px 11px 4px; color: #26303d; background: white; font-size: .9rem; line-height: 1.45; }
.program-timing > span:first-child { flex: 0 0 auto; font-size: 1.15rem; }
.program-example { width: 100%; margin: 26px auto 0; overflow: hidden; border: 0; border-radius: 0; background: #f3f4f6; }
.program-example img { display: block; width: 100%; height: auto; aspect-ratio: 1; object-fit: contain; }
.program-example figcaption { margin: 0; padding: 16px 0; color: var(--ink); background: white; font-size: 1rem; font-weight: 650; line-height: 1.5; }
.program-header h2 { font-size: clamp(1.65rem, 4.2vw, 2.5rem); line-height: 1.15; }
.social-compose-help { margin: 14px 0 0; color: var(--muted); line-height: 1.6; }
.social-profiles .social-profile { grid-template-columns: 46px 1fr; }
.action-rules { border-top: 1px solid var(--line); padding-top: 16px; }
.action-rules summary { cursor: pointer; font-weight: 800; }
.action-rules ol { padding-left: 22px; line-height: 1.6; }
.action-rules li + li { margin-top: 10px; }
.program-divider { height: 1px; margin: 28px 0; background: #b8bec7; }
.program-terms h3 { margin: 0 0 18px; font-size: clamp(1.25rem, 3.5vw, 1.7rem); letter-spacing: -.025em; }
.program-terms ol { display: grid; gap: 12px; margin: 0 0 28px; padding-left: 1.45rem; }
.program-terms li { padding-left: 8px; color: #252b34; line-height: 1.5; }
.program-terms li::marker { font-weight: 900; }
.official-profiles { margin: 0 0 9px; color: var(--muted); font-size: .76rem; font-weight: 850; letter-spacing: .06em; text-transform: uppercase; }
.social-profiles { display: grid; gap: 10px; }
.social-profile { display: grid; grid-template-columns: 46px 1fr auto; align-items: center; gap: 12px; min-width: 0; padding: 12px; border: 1px solid #dce3ec; border-radius: 14px; color: var(--ink); background: white; text-decoration: none; transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease; }
.social-profile:hover { transform: translateY(-1px); border-color: #aab7c6; box-shadow: 0 8px 18px rgba(16,24,38,.08); }
.social-profile small, .social-profile strong { display: block; }
.social-profile small { color: var(--muted); font-size: .72rem; }
.social-profile strong { overflow-wrap: anywhere; font-size: .98rem; }
.social-logo { display: grid; place-items: center; width: 46px; height: 46px; border-radius: 13px; color: white; }
.social-logo svg { width: 26px; height: 26px; fill: none; stroke: currentColor; stroke-width: 1.8; }
.instagram .social-logo { background: radial-gradient(circle at 30% 105%, #ffd600 0 20%, #ff7a00 35%, #ff0169 58%, #d300c5 78%, #7638fa 100%); }
.instagram .social-logo-dot { fill: currentColor; stroke: none; }
.facebook .social-logo { background: #1877f2; }
.facebook .social-logo svg { fill: currentColor; stroke: none; }
.profile-open { color: #526174; font-size: .72rem; font-weight: 800; white-space: nowrap; }
.pairing-note { margin: 0; padding: 14px 16px; border-left: 4px solid var(--red); border-radius: 0 12px 12px 0; color: #3f4b5b; background: #f5f7fa; font-size: .86rem; line-height: 1.5; }
.pairing-note strong { color: var(--ink); }
.pairing-note > strong:first-child { display: block; margin-bottom: 4px; }
.newsletter-offer { display: grid; gap: 14px; padding: 18px; border: 1px solid #d9e2ec; border-radius: 16px; background: linear-gradient(135deg, #f7f9fc, #fff); }
.newsletter-offer-copy { display: grid; grid-template-columns: 38px 1fr; align-items: center; gap: 12px; }
.newsletter-offer-copy strong, .newsletter-offer-copy small { display: block; }
.newsletter-offer-copy strong { margin-bottom: 3px; color: var(--ink); font-size: 1rem; }
.newsletter-offer-copy small { color: var(--muted); font-size: .82rem; line-height: 1.45; }
.newsletter-icon { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 50%; color: white; background: var(--red); font-size: 1.15rem; }
.check-row { display: flex; align-items: flex-start; gap: 11px; }
.check-row input { flex: 0 0 auto; margin-top: 5px; accent-color: var(--red); }
.checkbox-error { margin: -4px 0 0 28px; color: var(--red); font-size: .82rem; font-weight: 780; }
.legal-note { color: var(--muted); font-size: .82rem; }
.legal-note a { color: var(--ink); font-weight: 800; text-decoration-thickness: 1.5px; text-underline-offset: 2px; }
.form-error { color: var(--red); font-weight: 700; }
.button-full { width: 100%; margin-top: 8px; }
.success { text-align: center; }
.success-icon { margin-inline: auto; width: 74px; height: 74px; border-radius: 50%; font-size: 2.1rem; }
.success .lead { max-width: 610px; margin-inline: auto; }
.certificate { display: grid; width: min(100%, 460px); gap: 6px; margin: 28px auto; padding: 24px; border: 2px dashed #b9c2cf; border-radius: 18px; background: #fbfcfe; }
.certificate span, .certificate small { color: var(--muted); }
.certificate strong { font-size: 1.35rem; }
.community-card { display: grid; grid-template-columns: 48px 1fr; gap: 16px; align-items: start; width: min(100%, 640px); margin: 30px auto 22px; padding: 20px; border: 1px solid #d9dee7; border-radius: 10px; background: #fff; text-align: left; }
.community-logo { display: grid; place-items: center; width: 48px; height: 48px; border-radius: 8px; color: white; background: #1877f2; }
.community-logo svg { width: 31px; height: 31px; fill: currentColor; }
.community-copy h2 { margin: 2px 0 7px; font-size: clamp(1.2rem, 3.2vw, 1.55rem); letter-spacing: -.02em; }
.community-copy > p:not(.community-eyebrow) { margin: 0 0 15px; color: #4f5b6b; line-height: 1.5; }
.community-eyebrow { margin: 0; color: #667385; font-size: .7rem; font-weight: 800; letter-spacing: .08em; }
.community-button { display: inline-flex; justify-content: center; min-height: 42px; padding: 10px 15px; border-radius: 8px; color: white; background: #1877f2; text-decoration: none; box-shadow: none; }
.community-button:hover { background: #0f68dc; }

@media (min-width: 900px) {
  .lesson-media-layout { display: grid; grid-template-columns: minmax(320px, 420px) minmax(0, 1fr); align-items: start; gap: 24px; margin: 28px 0 22px; }
  .lesson-media-layout.no-video-layout { grid-template-columns: 1fr; }
  .lesson-media-layout.no-video-layout .lesson-points { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .lesson-media-layout .video-panel { margin: 0; }
  .lesson-media-layout .lesson-points { grid-template-columns: 1fr; margin: 0; }
  .lesson-media-layout .lesson-points li { min-height: 120px; }
  .lesson-media-layout .lesson-points li:has(.supplied-diagram):not(.stacked-visual) { grid-template-columns: 190px 1fr; }
  .social-profiles { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 640px) {
  .app-shell { padding-inline: 14px; }
  .language-screen { padding: 28px 22px; border-radius: 24px; }
  .language-grid, .form-grid, .lesson-points { grid-template-columns: 1fr; }
  .language-picker-heading { align-items: flex-start; flex-direction: column; gap: 2px; }
  .language-card { min-height: 84px; }
  .language-start { width: 100%; }
  .warranty-message, .warranty-reward { align-items: flex-start; padding: 16px; }
  .lesson-card, .registration, .success { padding: 26px 20px; border-radius: 22px; }
  .lesson-index { top: 22px; right: 21px; font-size: 3rem; }
  .video-panel { min-height: 136px; padding: 20px 17px; }
  .lesson-points li { grid-template-columns: 108px 1fr; }
  .quiz { padding: 18px 14px; }
  .lesson-actions .button-primary { flex: 1; }
  .social-profile { grid-template-columns: 42px 1fr; }
  .social-logo { width: 42px; height: 42px; }
  .profile-open { display: none; }
  .community-card { grid-template-columns: 44px 1fr; gap: 13px; padding: 16px; }
  .community-logo { width: 44px; height: 44px; }
  .community-logo svg { width: 28px; height: 28px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}