:root{
    --paper:#FFFFFF;
    --paper-alt:#EFF5FE;
    --ink:#17181C;
    --ink-soft:#55575F;
    --ink-faint:#9A9C9F;
    --cobalt:#0096FF;
    --cobalt-deep:#0075C7;
    --cobalt-glow:#8FD1FF;
    --amber:#FF9300;
    --green:#22A559;
    --red:#D8402F;
    --line:#E2E8F2;
    --white:#FFFFFF;
    --radius:14px;
    --wrap:1120px;
  }

  @media (prefers-reduced-motion: no-preference){
    .reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease, transform .7s ease;}
    .reveal.in{opacity:1;transform:translateY(0);}
    .hero-content > *{opacity:0;transform:translateY(18px);animation:heroIn .7s ease forwards;}
    .hero-content > *:nth-child(1){animation-delay:.05s;}
    .hero-content > *:nth-child(2){animation-delay:.16s;}
    .hero-content > *:nth-child(3){animation-delay:.27s;}
    .hero-content > *:nth-child(4){animation-delay:.38s;}
    .hero-content > *:nth-child(5){animation-delay:.49s;}
    @keyframes heroIn{to{opacity:1;transform:translateY(0);}}
    .hero-network .node{animation:nodeFloat 7s ease-in-out infinite;}
    .hero-network .node:nth-child(2n){animation-duration:9s;animation-direction:reverse;}
    .hero-network .node:nth-child(3n){animation-duration:11s;}
    @keyframes nodeFloat{
      0%,100%{transform:translate(0,0);}
      50%{transform:translate(10px,-14px);}
    }
    .hero-network .link{stroke-dasharray:4 6;animation:dash 26s linear infinite;}
    @keyframes dash{to{stroke-dashoffset:-200;}}
    .blob{animation:blobFloat 14s ease-in-out infinite;}
    .blob.b2{animation-duration:18s;animation-direction:reverse;}
    @keyframes blobFloat{
      0%,100%{transform:translate(0,0) scale(1);}
      33%{transform:translate(20px,-24px) scale(1.06);}
      66%{transform:translate(-16px,14px) scale(0.97);}
    }
  }

  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  section, [id]{scroll-margin-top:85px;}
  body{
    margin:0;
    background:var(--paper);
    color:var(--ink);
    font-family:'Manrope',sans-serif;
    font-size:17px;
    line-height:1.6;
    -webkit-font-smoothing:antialiased;
  }

  h1,h2,h3{
    font-family:'Oswald',sans-serif;
    font-weight:700;
    line-height:1.08;
    margin:0;
    letter-spacing:0.01em;
    text-transform:uppercase;
  }
  .aqua{color:var(--cobalt);}

  .eyebrow{
    font-family:'IBM Plex Mono',monospace;
    font-size:12.5px;
    letter-spacing:0.14em;
    text-transform:uppercase;
    color:var(--ink);
    font-weight:500;
  }

  .wrap{max-width:var(--wrap);margin:0 auto;padding:0 32px;}
  section{padding:120px 0;position:relative;}
  #opis{padding-bottom:50px;}
  #program{padding-top:20px;}
  section.alt{background:var(--paper-alt);}
  .hr{height:1px;background:var(--line);border:0;margin:0;}

  a{color:inherit;text-decoration:none;}

  /* ---------- NAV ---------- */
  nav{
    position:sticky;top:0;z-index:50;
    background:rgba(251,250,247,0.86);
    backdrop-filter:blur(10px);
    border-bottom:1px solid var(--line);
  }
  nav .wrap{
    display:flex;align-items:center;justify-content:space-between;
    padding:20px 32px;
  }
  .logo{height:46px;width:auto;display:block;}
  .nav-links{display:flex;gap:32px;font-size:14.5px;font-weight:600;}
  .nav-links a:hover{color:var(--cobalt);}
  @media (max-width:640px){
    .nav-links{display:none;}
    nav .wrap{padding:16px 20px;}
    .logo{height:36px;}
  }

  /* ---------- BUTTONS ---------- */
  .btn{
    display:inline-flex;align-items:center;gap:8px;
    padding:15px 28px;border-radius:999px;
    font-weight:700;font-size:15px;
    cursor:pointer;border:1px solid transparent;
    transition:transform .15s ease, box-shadow .15s ease;
  }
  .btn:hover{transform:translateY(-1px);}
  .btn-primary{background:var(--cobalt);color:var(--white);box-shadow:0 8px 20px -8px rgba(42,47,224,0.55);}
  .btn-primary:hover{background:var(--cobalt-deep);}
  .btn-red{background:var(--red);color:var(--white);box-shadow:0 8px 20px -8px rgba(216,64,47,0.45);}
  .btn-red:hover{background:#B8331F;}
  .btn-ghost{background:transparent;color:var(--ink);border:1px solid var(--line);}
  .btn-ghost:hover{border-color:var(--ink);}
  .btn-sm{padding:10px 18px;font-size:13.5px;}

  /* ---------- HERO ---------- */
  .hero{
    position:relative;overflow:hidden;
    display:flex;flex-direction:column;align-items:center;text-align:center;
    padding:150px 24px 120px;
  }
  .hero-network{
    position:absolute;inset:0;width:100%;height:100%;z-index:1;
    pointer-events:none;
  }
  .hero-network circle.node{filter:drop-shadow(0 0 8px rgba(0,150,255,0.35));}
  .hero-network .amber-node{filter:drop-shadow(0 0 8px rgba(255,147,0,0.35));}
  .hero-content{position:relative;z-index:2;max-width:900px;}
  .hero-logo{width:760px;max-width:88vw;height:auto;margin:0 auto 34px;display:block;}
  .hero h1{
    font-size:42px;margin:0 auto 20px;font-weight:600;color:var(--ink);
    line-height:1.28;max-width:820px;
  }
  .hero h1 .aqua{color:var(--cobalt);font-weight:700;}
  .hero-sub{
    font-size:18px;color:var(--ink-soft);max-width:600px;margin:0 auto 40px;line-height:1.6;
  }
  .blob{
    position:absolute;border-radius:50%;filter:blur(80px);opacity:.45;z-index:0;
    pointer-events:none;
  }
  .blob.b1{width:460px;height:460px;background:var(--cobalt-glow);top:-180px;left:-140px;}
  .blob.b2{width:360px;height:360px;background:#FBDCAE;bottom:-140px;right:-100px;opacity:.4;}
  @media (max-width:960px){
    .hero{padding:100px 20px 80px;}
    .hero-logo{width:340px;}
    .hero h1{font-size:26px;}
    .hero-sub{font-size:16px;}
    .hero-network{display:none;}
  }

  .photo-block{
    border-radius:var(--radius);
    background:linear-gradient(135deg,#EAF1FC,#DCE8FA);
    position:relative;overflow:hidden;
    display:flex;align-items:center;justify-content:center;
    color:var(--ink-faint);font-size:13px;font-family:'IBM Plex Mono',monospace;
    letter-spacing:.05em;
  }
  .photo-block::after{
    content:"";position:absolute;inset:0;
    background:
      radial-gradient(circle at 30% 20%, rgba(42,47,224,0.10), transparent 55%),
      radial-gradient(circle at 75% 80%, rgba(216,64,47,0.10), transparent 55%);
  }
  .photo-block span{position:relative;z-index:2;}

  /* ---------- ZALETY ---------- */
  .perk-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
  .perk-card {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 34px 28px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.03);
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    display: flex;
    flex-direction: column;
    text-align: left;
  }
  .perk-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(23, 24, 28, 0.08);
    border-color: rgba(0, 150, 255, 0.25);
  }
  .perk-card:nth-child(2n):hover {
    box-shadow: 0 20px 40px rgba(23, 24, 28, 0.08);
    border-color: rgba(255, 147, 0, 0.25);
  }
  
  /* Niebieski/bursztynowy pasek akcentu na górze perk-card */
  .perk-card .perk-accent {
    position: absolute;
    top: 0;
    left: 0;
    width: 110px;
    height: 4px;
    background: var(--cobalt);
  }
  .perk-card:nth-child(2n) .perk-accent {
    background: var(--amber);
  }

  .perk-card h3 {
    font-family: 'Oswald', sans-serif;
    font-size: 20px;
    font-weight: 700;
    text-transform: uppercase;
    margin: 0 0 16px 0;
    color: var(--ink);
    letter-spacing: 0.02em;
    transition: color 0.25s ease;
  }
  
  /* Cienki poziomy separator pod tytułem karty */
  .perk-card h3::after {
    content: '';
    display: block;
    width: 32px;
    height: 2px;
    background: var(--cobalt);
    margin-top: 10px;
    opacity: 0.45;
  }
  .perk-card:nth-child(2n) h3::after {
    background: var(--amber);
  }
  
  /* Zmiana koloru tytułu na hover */
  .perk-card:hover h3 {
    color: var(--cobalt);
  }
  .perk-card:nth-child(2n):hover h3 {
    color: var(--amber);
  }

  .perk-card p {
    font-family: 'Manrope', sans-serif;
    font-weight: 400;
    font-size: 14.5px;
    color: var(--ink-soft);
    line-height: 1.6;
    margin: 0;
  }

  /* Ozdobny łuk w prawym dolnym rogu (quadrant overlay) z dynamicznym rozszerzaniem */
  .perk-card::after {
    content: '';
    position: absolute;
    right: 0;
    bottom: 0;
    width: 48px;
    height: 48px;
    border-top-left-radius: 100%;
    border-left: 1px solid rgba(23, 24, 28, 0.06);
    border-top: 1px solid rgba(23, 24, 28, 0.06);
    pointer-events: none;
    transition: border-color 0.25s ease, width 0.25s ease, height 0.25s ease;
  }

  .perk-card:hover::after {
    width: 68px;
    height: 68px;
    border-left-color: rgba(0, 150, 255, 0.2);
    border-top-color: rgba(0, 150, 255, 0.2);
  }
  .perk-card:nth-child(2n):hover::after {
    width: 68px;
    height: 68px;
    border-left-color: rgba(255, 147, 0, 0.25);
    border-top-color: rgba(255, 147, 0, 0.25);
  }

  @media (max-width: 960px) {
    .perk-grid {
      grid-template-columns: 1fr;
    }
  }

  /* ---------- SECTION HEAD ---------- */
  .section-head{max-width:620px;margin-bottom:56px;}
  .section-head h2{font-size:38px;margin-top:14px;}
  .section-head p{color:var(--ink-soft);font-size:16.5px;margin-top:14px;}

  /* ---------- WHY CLAUDE ---------- */
  .why-row{display:grid;grid-template-columns:0.9fr 1.1fr;gap:64px;align-items:center;}
  .why-row-mirror{grid-template-columns:1.1fr 0.9fr;}
  .col-text h3{font-size:29px;margin-bottom:16px;}
  .col-text p{color:var(--ink-soft);}
  .why-row + .why-row{margin-top:100px;}
  .col-visual .photo-block{height:300px;}

  /* ---------- PROGRAM / 10 LEKCJI (styl "Plan spotkania") ---------- */
  .agenda-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
  /* Kolory dla poszczególnych lekcji w planie */
  .agenda-card:nth-child(1) { --lesson-color: #0096FF; } /* Cobalt Blue */
  .agenda-card:nth-child(2) { --lesson-color: #22A559; } /* Emerald Green */
  .agenda-card:nth-child(3) { --lesson-color: #FF9300; } /* Amber Orange */
  .agenda-card:nth-child(4) { --lesson-color: #8F55EC; } /* Deep Purple */
  .agenda-card:nth-child(5) { --lesson-color: #FF4757; } /* Rose Red */
  .agenda-card:nth-child(6) { --lesson-color: #00B894; } /* Teal Cyan */
  .agenda-card:nth-child(7) { --lesson-color: #5F27CD; } /* Indigo Blue */
  .agenda-card:nth-child(8) { --lesson-color: #D8402F; } /* Coral Red */
  .agenda-card:nth-child(9) { --lesson-color: #FFC312; } /* Deep Gold */
  .agenda-card:nth-child(10) { --lesson-color: #00D2D3; } /* Bright Turquoise */

  .agenda-card{
    background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
    padding:28px 30px;
    transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease;
  }
  .agenda-card:hover{
    transform:translateY(-5px);
    box-shadow:0 20px 40px rgba(23,24,28,0.08);
    border-color: var(--lesson-color);
  }
  .soon-badge{
    display:inline-block;background:var(--amber);color:#fff;
    font-family:'IBM Plex Mono',monospace;font-size:10.5px;font-weight:600;
    letter-spacing:.04em;text-transform:uppercase;
    padding:3px 10px;border-radius:999px;margin-left:8px;vertical-align:middle;
    white-space:nowrap;
  }
  .free-badge{
    display:inline-block;background:var(--green);color:#fff;
    font-family:'IBM Plex Mono',monospace;font-size:10.5px;font-weight:600;
    letter-spacing:.04em;text-transform:uppercase;
    padding:6px 14px;border-radius:999px;margin-left:8px;margin-bottom:16px;vertical-align:middle;
    white-space:nowrap;text-decoration:none;transition:transform .15s ease, background-color .15s ease;
  }
  .free-badge:hover{
    background:#1e944f;transform:translateY(-1px);color:#fff;
  }
  .agenda-tag{
    display:inline-block;background:var(--cobalt);color:#fff;font-family:'Oswald',sans-serif;
    font-size:12.5px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
    padding:6px 14px;border-radius:999px;margin-bottom:16px;
    transition:background-color 0.25s ease;
  }
  .agenda-card:hover .agenda-tag {
    background-color: var(--lesson-color);
  }
  .agenda-tag-free{
    display:inline-flex;align-items:center;
    background:var(--green) !important;color:#fff !important;font-family:'Oswald',sans-serif;
    font-size:12.5px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
    padding:6px 14px;border-radius:999px;margin-bottom:16px;margin-left:8px;
    text-decoration:none !important;transition:transform .2s ease, background-color .2s ease, box-shadow .2s ease;
  }
  .agenda-tag-free:hover{
    background:#1c8e4c;transform:translateY(-2px);
    box-shadow:0 6px 16px rgba(34,165,89,0.35);color:#fff;
  }
  .agenda-card h3{
    font-size:19px;margin-bottom:10px;font-family:'Oswald',sans-serif;font-weight:700;color:var(--ink);
    transition:color 0.25s ease;
  }
  .agenda-card:hover h3{
    color: var(--lesson-color);
  }
  .agenda-card p{margin:0;color:var(--ink-soft);font-size:14.5px;line-height:1.65;}
  @media (max-width:960px){
    .agenda-grid{grid-template-columns:1fr;}
  }

  /* ---------- WYMAGANIA & FOTOGRAFIE ---------- */
  .req-row{display:grid;grid-template-columns:0.85fr 1.15fr;gap:56px;align-items:center;}
  .req-photo{border-radius:var(--radius);overflow:hidden;box-shadow:0 24px 48px -20px rgba(23,24,28,0.3);}
  .req-photo img{width:100%;height:auto;display:block;}
  .req-photo[style*="height:"] img{height:100%;object-fit:cover;object-position:center 30%;}
  .req-photo .photo-block{font-size:12px;padding:20px;text-align:center;}
  .req-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:18px;}
  .req-list li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:var(--ink-soft);line-height:1.55;}
  .req-list .check{color:var(--cobalt);font-weight:800;flex:0 0 auto;margin-top:2px;}
  
  /* ---------- CHECKLIST / PLATFORMA ---------- */
  .checklist-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px 28px;}
  .checklist-grid-1col{grid-template-columns:1fr;max-width:100%;margin:0;gap:12px;}
  .checklist-title{font-size:32px;margin-bottom:24px;}
  .checklist-item{display:flex;align-items:flex-start;gap:14px;padding:6px 0;}
  .checklist-item .check{color:var(--cobalt);font-weight:800;font-size:17px;flex:0 0 auto;margin-top:2px;}
  .checklist-item:nth-child(2n) .check{color:var(--amber);}
  .checklist-item p{margin:0;font-size:15.5px;color:var(--ink-soft);line-height:1.55;}
  @media (max-width:960px){
    .req-row{grid-template-columns:1fr;}
    .checklist-grid{grid-template-columns:1fr;}
  }

  /* ---------- CENNIK ---------- */
  .price-notice{
    border:1.5px solid var(--amber);background:rgba(255,147,0,0.08);
    border-radius:var(--radius);padding:22px 28px;margin-bottom:36px;
    font-size:14.5px;color:var(--ink-soft);line-height:1.65;text-align:center;
  }
  .price-notice b{color:var(--ink);}
  .price-notice a{color:var(--cobalt);text-decoration:underline;text-underline-offset:2px;}
  .price-notice a:hover{color:var(--cobalt-deep);}
  .price-notice-blue{
    border-color:var(--cobalt);background:rgba(0,150,255,0.07);
    margin-top:36px;margin-bottom:0;
  }
  .pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:36px;align-items:stretch;}
  .price-card{
    background:var(--white);border:1px solid var(--line);border-radius:20px;
    display:flex;flex-direction:column;overflow:hidden;position:relative;
  }
  .price-head{position:relative;padding:44px 34px 32px;text-align:center;display:flex;flex-direction:column;align-items:center;min-height:268px;justify-content:flex-start;}
  .price-head-blue{background:var(--cobalt);}
  .price-head-amber{background:var(--amber);}
  .price-head-green{background:var(--green);}
  .price-head-ink{background:var(--ink);}
  .price-head h3{
    font-size:15px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
    color:rgba(255,255,255,0.85);margin-bottom:18px;
  }
  .price-old{
    font-family:'Jost',sans-serif;font-weight:600;font-size:18px;
    color:rgba(255,255,255,0.6);text-decoration:line-through;margin-bottom:2px;
  }
  .price-head .price{
    font-family:'Jost',sans-serif;font-weight:800;font-size:46px;color:#fff;
    margin-bottom:24px;padding-bottom:24px;border-bottom:1px solid rgba(255,255,255,0.3);
  }
  .price-head p{color:rgba(255,255,255,0.88);font-size:14.5px;line-height:1.65;margin:0;max-width:240px;margin-left:auto;margin-right:auto;}
  .price-body{flex:1;padding:34px 34px 10px;}
  .price-line{
    padding:19px 0;border-bottom:1px solid var(--line);
    font-size:14.5px;color:var(--ink-soft);line-height:1.6;
  }
  .price-line:last-child{border-bottom:none;}
  .price-line b{color:var(--ink);font-weight:700;}
  .mentoring-quote{
    font-family:'Jost',sans-serif;font-style:italic;font-weight:500;
    color:var(--cobalt);font-size:15.5px;
    border-left:2px solid var(--cobalt);padding-left:14px;
    margin:10px 0 0;
  }
  .price-card .btn{margin:6px 34px 34px !important;}
  .check{color:var(--cobalt);font-weight:800;}
  @media (max-width:960px){
    .pricing-grid{grid-template-columns:1fr;gap:26px;}
  }

  /* ---------- INTRO ---------- */
  .intro-body{text-align:left;margin-top:26px;}
  .intro-body p{color:var(--ink-soft);font-size:16.5px;line-height:1.75;margin-bottom:18px;}
  .intro-body p:last-child{margin-bottom:0;}

  /* ---------- LOGO MARQUEE ---------- */
  #logo{padding-bottom:100px;}
  .logo-marquee{
    width:100%;overflow:hidden;margin-top:56px;
    -webkit-mask-image:linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
    mask-image:linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  }
  .logo-track{
    display:flex;align-items:center;width:max-content;
    animation:logoScroll 32s linear infinite;
  }
  .logo-track img{
    height:34px;width:auto;object-fit:contain;
    margin:0 44px;opacity:.4;transition:opacity .2s ease;flex:0 0 auto;
  }
  .logo-track img:hover{opacity:1;}
  @keyframes logoScroll{
    from{transform:translateX(0);}
    to{transform:translateX(-50%);}
  }
  @media (prefers-reduced-motion: reduce){
    .logo-track{animation:none;}
    .logo-marquee{overflow-x:auto;}
  }
  @media (max-width:960px){
    .logo-track img{height:26px;margin:0 28px;}
    #logo{padding-bottom:80px;}
  }

  /* ---------- FOOTER ---------- */
  footer{padding:56px 0 40px;}
  footer .wrap{display:flex;flex-direction:column;gap:10px;align-items:center;text-align:center;font-size:12.5px;color:var(--ink-faint);line-height:1.6;}
  .sep{color:var(--ink-soft);font-weight:600;padding:0 2px;}
  .footer-links{display:flex;gap:26px;}
  .footer-links a:hover{color:var(--ink);}

  @media (max-width:960px){
    .why-row,.why-row-mirror{grid-template-columns:1fr;}
    .pricing-grid{grid-template-columns:1fr;}
    section{padding:80px 0;}
  }

  /* ---------- SEKCJA BONUSÓW (AESTHETIC: UKRYTE KRONIKI) ---------- */
  .bonus-eyebrow {
    display: inline-block;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.12em;
    border: 1px solid var(--line);
    padding: 6px 14px;
    text-transform: uppercase;
    color: var(--ink-soft);
    margin-bottom: 20px;
    background: var(--paper);
    border-radius: 4px;
  }

  .red-text {
    color: var(--red) !important;
  }

  .bonus-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 40px;
  }

  .bonus-card {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 34px 28px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.03);
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    display: flex;
    flex-direction: column;
  }

  .bonus-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(23, 24, 28, 0.08);
    border-color: rgba(216, 64, 47, 0.2);
  }

  /* Czerwony pasek akcentu na górze karty */
  .bonus-accent {
    position: absolute;
    top: 0;
    left: 28px;
    width: 45px;
    height: 4px;
    background: var(--red);
    border-radius: 0 0 2px 2px;
  }

  .bonus-number {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 12px;
    font-weight: 500;
    color: var(--ink-faint);
    display: block;
    margin-bottom: 16px;
    letter-spacing: 0.05em;
  }

  .bonus-card h3 {
    font-family: 'Oswald', sans-serif;
    font-size: 20px;
    font-weight: 700;
    text-transform: uppercase;
    margin: 0 0 12px 0;
    color: var(--ink);
    letter-spacing: 0.02em;
  }

  .bonus-card p {
    font-size: 14.5px;
    color: var(--ink-soft);
    line-height: 1.6;
    margin: 0;
  }

  /* Ozdobny łuk w prawym dolnym rogu (quadrant overlay) */
  .bonus-card::after {
    content: '';
    position: absolute;
    right: 0;
    bottom: 0;
    width: 48px;
    height: 48px;
    border-top-left-radius: 100%;
    border-left: 1px solid rgba(23, 24, 28, 0.06);
    border-top: 1px solid rgba(23, 24, 28, 0.06);
    pointer-events: none;
    transition: border-color 0.25s ease;
  }

  .bonus-card:hover::after {
    border-left-color: rgba(216, 64, 47, 0.15);
    border-top-color: rgba(216, 64, 47, 0.15);
  }

  .bonus-footer {
    text-align: center;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 15px;
    color: var(--ink-soft);
    border-top: 1px dashed var(--line);
    padding-top: 28px;
    margin-top: 40px;
    letter-spacing: 0.02em;
  }

  .bonus-footer strong {
    font-size: 18px;
  }

  @media (max-width: 1024px) {
    .bonus-grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }

  @media (max-width: 640px) {
    .bonus-grid {
      grid-template-columns: 1fr;
      gap: 16px;
    }
    .bonus-card {
      padding: 28px 22px;
    }
  }

  /* ---------- PRZYKŁADOWA LEKCJA ROZWIJANA ---------- */
  .lesson-preview-details {
    margin: 0 auto;
    max-width: 1120px;
  }
  .lesson-preview-details summary {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: var(--paper);
    border: 1px solid var(--line);
    padding: 18px 36px;
    border-radius: 999px;
    font-family: 'Oswald', sans-serif;
    font-size: 16px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--ink);
    cursor: pointer;
    letter-spacing: 0.05em;
    transition: all 0.25s ease;
    user-select: none;
    list-style: none; /* Hide default arrow in standard browsers */
    box-shadow: 0 4px 12px rgba(23,24,28,0.03);
  }
  .lesson-preview-details summary::-webkit-details-marker {
    display: none; /* Hide default arrow in Safari */
  }
  .lesson-preview-details summary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(23,24,28,0.06);
    border-color: var(--cobalt);
    color: var(--cobalt);
  }
  .lesson-preview-details summary::after {
    content: '↓';
    font-size: 20px;
    font-family: sans-serif;
    transition: transform 0.3s ease;
  }
  .lesson-preview-details[open] summary::after {
    transform: rotate(180deg);
  }
  .lesson-preview-details[open] summary {
    margin-bottom: 40px; /* space between button and image */
  }

  @media (max-width: 640px) {
    .lesson-preview-details summary {
      padding: 14px 22px;
      font-size: 14.5px;
      text-align: center;
      justify-content: center;
      width: 100%;
    }
  }

  /* ---------- LESSON SLIDER MARQUEE ---------- */
  .lesson-slider-marquee {
    width: 100%;
    overflow: hidden;
    margin-bottom: 56px; /* Odstęp od guzika z rozwijaniem */
    -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
    mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
    padding: 30px 0; /* Miejsce na cienie i rotację */
  }
  .lesson-slider-track {
    display: flex;
    align-items: center;
    width: max-content;
    animation: lessonScroll 60s linear infinite;
  }
  .lesson-slider-track img {
    height: 180px; /* "kilka centymetrów" */
    width: auto;
    object-fit: cover;
    margin: 0 20px;
    border-radius: 12px;
    box-shadow: 0 10px 24px rgba(23,24,28,0.12);
    transform: rotate(-3deg);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.4s ease;
  }
  .lesson-slider-track img:nth-child(2n) {
    transform: rotate(2deg) translateY(6px);
  }
  .lesson-slider-track img:nth-child(3n) {
    transform: rotate(-1.5deg) translateY(-8px);
  }
  .lesson-slider-track img:nth-child(5n) {
    transform: rotate(3deg) translateY(-2px);
  }
  .lesson-slider-track img:hover {
    transform: rotate(0deg) scale(1.1) translateY(0);
    box-shadow: 0 20px 40px rgba(23,24,28,0.25);
    z-index: 10;
    position: relative;
    cursor: grab;
  }
  .lesson-slider-track img:active {
    cursor: grabbing;
  }
  .lesson-slider-track:hover {
    animation-play-state: paused;
  }
  @keyframes lessonScroll {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
  }
  @media (prefers-reduced-motion: reduce) {
    .lesson-slider-track { animation: none; }
    .lesson-slider-marquee { overflow-x: auto; }
  }
  @media (max-width: 640px) {
    .lesson-slider-track img { height: 140px; margin: 0 12px; }
  }