:root{--blue:#0075A6;--blue-dark:#005A82;--ink:#183542;--muted:#6D7B80;--cream:#F8F4EC;--sand:#EEE5D6;--white:#fff;--coral:#D76E4B;--shadow:0 18px 50px rgba(17,62,78,.10);--radius:26px;}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:'DM Sans',system-ui,-apple-system,Segoe UI,sans-serif;background:#fff;color:var(--ink);line-height:1.5}button,input,select,textarea{font:inherit}button{cursor:pointer}a{text-decoration:none;color:inherit}.shell{width:min(1180px,calc(100% - 40px));margin:auto}.site-header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.94);backdrop-filter:blur(14px);border-bottom:1px solid #edf0f1}.nav-wrap{height:76px;display:flex;align-items:center;gap:30px}.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700}.brand-mark{display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:var(--blue);color:white;font-family:'Playfair Display',serif;font-size:22px}.brand-text{font-size:20px;color:var(--blue-dark)}.top-nav{display:flex;gap:8px;margin-left:auto}.nav-link,.admin-shortcut{border:0;background:transparent;padding:10px 14px;border-radius:999px;color:#41545c}.nav-link:hover,.admin-shortcut:hover{background:#f1f7f9;color:var(--blue)}.admin-shortcut{font-size:14px}.hero{display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center;padding:68px 0 52px}.eyebrow{display:block;font-weight:700;letter-spacing:.16em;font-size:12px;color:var(--blue);margin-bottom:12px}.hero h1,.page-hero h1,.page-title h1,.admin-headline h1{font-family:'Playfair Display',Georgia,serif;line-height:1.02;margin:0;color:#163947}.hero h1{font-size:clamp(46px,6vw,76px)}.hero h1 span{color:var(--blue)}.hero-copy>p{font-size:19px;color:#52646b;max-width:580px;margin:24px 0 28px}.primary-btn,.secondary-btn,.danger-btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;border:0;border-radius:999px;padding:14px 22px;font-weight:700}.primary-btn{background:var(--blue);color:white;box-shadow:0 9px 24px rgba(0,117,166,.22)}.primary-btn:hover{background:var(--blue-dark)}.primary-btn.small{padding:11px 16px;font-size:14px}.secondary-btn{background:#eef6f8;color:var(--blue)}.danger-btn{background:#fff0ef;color:#a44136}.hero-pills{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px}.hero-pills span{font-size:13px;padding:8px 12px;border-radius:999px;background:#F3F8F9;color:#46616a}.hero-visual{position:relative}.hero-visual img{width:100%;height:510px;object-fit:cover;border-radius:34px;box-shadow:var(--shadow)}.hero-visual:after{content:'';position:absolute;inset:14px -14px -14px 14px;border:1px solid #c6e0e8;border-radius:34px;z-index:-1}.floating-card{position:absolute;background:#fff;padding:12px 16px;border-radius:16px;box-shadow:0 13px 30px rgba(21,72,90,.18);display:flex;flex-direction:column}.floating-card strong{color:var(--blue)}.floating-card span{font-size:12px;color:#708086}.card-one{left:-28px;bottom:40px}.card-two{right:-18px;top:34px}.section-block{padding:66px 0 90px}.section-heading{display:flex;justify-content:space-between;gap:40px;align-items:end;margin-bottom:32px}.section-heading h2{font-family:'Playfair Display',serif;font-size:42px;margin:0}.section-heading p{max-width:480px;color:var(--muted)}.language-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.language-card{background:#fff;border:1px solid #e7edef;border-radius:26px;overflow:hidden;box-shadow:0 10px 28px rgba(24,53,66,.06);transition:.25s}.language-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}.language-art{height:210px;position:relative;overflow:hidden;background:linear-gradient(135deg,#e9f5f8,#f8f4ec)}.lang-es .language-art{background:linear-gradient(135deg,#fff0e9,#f7ead7)}.lang-fr .language-art{background:linear-gradient(135deg,#eaf0f8,#f5f1e9)}.language-word{position:absolute;z-index:2;left:28px;top:34px;font-family:'Playfair Display',serif;font-style:italic;font-size:42px;color:#0f5d7d}.art-circle{position:absolute;width:180px;height:180px;border-radius:50%;right:-35px;bottom:-45px;background:#8fcddd}.circle-2{background:#edb193}.circle-3{background:#a8b9d1}.art-line{position:absolute;width:150px;height:70px;border:3px solid rgba(0,117,166,.45);border-color:rgba(0,117,166,.45) transparent transparent transparent;border-radius:50%;right:80px;bottom:35px;transform:rotate(-8deg)}.language-card-body{display:flex;justify-content:space-between;align-items:end;padding:24px}.language-card h3{font-family:'Playfair Display',serif;font-size:30px;margin:3px 0}.language-card p{margin:0;color:var(--muted)}.mini-label{font-size:10px;letter-spacing:.15em;font-weight:700;color:#7c8d92}.round-btn{width:44px;height:44px;border:0;border-radius:50%;background:var(--blue);color:#fff;font-size:20px}.content-shell{padding:34px 0 90px;min-height:70vh}.back-link{background:none;border:0;color:var(--blue);font-weight:600;padding:8px 0}.breadcrumb{display:flex;gap:9px;align-items:center;color:#7b8c92;font-size:13px;margin:12px 0 26px}.breadcrumb b{font-weight:400}.page-hero{border-radius:30px;background:linear-gradient(135deg,#f2f8fa,#f8f4ec);padding:44px 48px;display:flex;justify-content:space-between;align-items:center;overflow:hidden;position:relative;margin-bottom:30px}.compact-hero{background:linear-gradient(135deg,var(--soft),#fff)}.page-hero h1,.page-title h1{font-size:52px}.page-hero p,.page-title p{color:#61747b;font-size:18px}.hero-script{font-family:'Playfair Display',serif;font-size:64px;font-style:italic;color:var(--accent);opacity:.8;transform:rotate(-6deg)}.level-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}.level-card{border:1px solid #e2eaed;background:#fff;border-radius:22px;padding:26px 18px;text-align:left;display:flex;min-height:175px;flex-direction:column;box-shadow:0 8px 24px rgba(24,53,66,.05)}.level-card:hover{border-color:#8cc6da;transform:translateY(-3px)}.level-number{font-family:'Playfair Display',serif;font-size:38px;color:var(--blue);font-weight:700}.level-card span:nth-child(2){font-size:13px;color:#66787f;margin-top:8px}.level-card b{margin-top:auto;color:var(--blue)}.page-title{padding:16px 0 28px}.page-title h1{margin:0}.chapter-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.chapter-card,.exercise-card{border:1px solid #e3e9eb;background:#fff;border-radius:24px;overflow:hidden;box-shadow:0 10px 26px rgba(22,55,68,.06);transition:.25s}.chapter-card:hover,.exercise-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.chapter-cover{height:170px;display:grid;place-items:center;font-size:60px;background:linear-gradient(135deg,#cfeaf2,#f8eadb)}.cover-2{background:linear-gradient(135deg,#f1d7cb,#f7efdf)}.cover-3{background:linear-gradient(135deg,#dce8df,#eaf4ef)}.cover-4{background:linear-gradient(135deg,#dfe5f2,#f2edf8)}.chapter-body,.exercise-body{padding:22px}.chapter-body h3,.exercise-body h3,.section-card h3{font-family:'Playfair Display',serif;font-size:24px;margin:5px 0}.chapter-body p,.exercise-body p,.section-card p{color:var(--muted);min-height:44px}.text-btn{border:0;background:none;color:var(--blue);font-weight:700;padding:0}.chapter-hero{background:linear-gradient(110deg,#eff7f9 0%,#fff7ed 100%)}.chapter-orb{width:130px;height:130px;border-radius:50%;display:grid;place-items:center;background:white;color:var(--blue);font-size:55px;box-shadow:0 15px 35px rgba(14,91,122,.12)}.section-card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.section-card{display:grid;grid-template-columns:auto 1fr auto;gap:18px;align-items:center;padding:24px;border-radius:22px;border:1px solid #e3eaec;background:#fff}.section-card.featured{background:var(--blue);color:#fff}.section-card.featured .mini-label,.section-card.featured p{color:#dceff6}.section-icon{width:58px;height:58px;border-radius:18px;background:#edf7fa;color:var(--blue);display:grid;place-items:center;font-weight:700;font-size:22px}.section-card.featured .section-icon{background:rgba(255,255,255,.16);color:#fff}.section-card.featured .round-btn{background:#fff;color:var(--blue)}.exercise-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.exercise-image{height:190px;background:#eef6f7;position:relative;background-size:cover;background-position:center}.exercise-illustration{position:absolute;inset:0;display:grid;place-items:center;overflow:hidden}.exercise-illustration span{font-size:54px;color:var(--blue);z-index:2}.exercise-illustration i{position:absolute;border-radius:50%;background:#cce6ee}.exercise-illustration i:nth-child(2){width:130px;height:130px;right:-20px;top:-30px}.exercise-illustration i:nth-child(3){width:70px;height:70px;left:25px;bottom:16px;background:#f2d8c9}.ill-2{background:#fff4ed}.ill-3{background:#eff2fa}.ill-4{background:#f1f7ef}.type-badge{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.9);backdrop-filter:blur(10px);padding:6px 10px;border-radius:999px;font-size:11px;font-weight:700}.exercise-body p{min-height:66px}.modal{position:fixed;inset:0;z-index:100;display:none}.modal.open{display:block}.modal-backdrop{position:absolute;inset:0;background:rgba(8,25,32,.62);backdrop-filter:blur(5px)}.modal-dialog{position:relative;width:min(1100px,calc(100% - 30px));max-height:92vh;overflow:auto;margin:4vh auto;background:#fff;border-radius:24px;padding:28px;box-shadow:0 30px 80px rgba(0,0,0,.25)}.modal-close{position:absolute;right:18px;top:14px;border:0;background:#f2f5f6;width:40px;height:40px;border-radius:50%;font-size:25px}.modal-meta{font-size:11px;letter-spacing:.14em;font-weight:700;color:var(--blue)}.modal-dialog h2{font-family:'Playfair Display',serif;font-size:34px;margin:5px 0}.modal-dialog>p{color:var(--muted)}.embed-frame{margin-top:20px}.embed-frame iframe{display:block;width:100%!important;min-height:650px!important;border:0!important;border-radius:14px}.external-box{min-height:260px;background:#f4f8f9;border-radius:20px;display:grid;place-items:center;align-content:center;gap:20px;text-align:center}.empty-state{grid-column:1/-1;background:#f7fafb;border:1px dashed #bad4dc;border-radius:24px;padding:50px;text-align:center}.site-footer{background:#0f3e50;color:#fff;margin-top:20px}.footer-wrap{display:flex;justify-content:space-between;align-items:center;padding:34px 0}.footer-brand .brand-text{color:#fff}.footer-wrap p,.footer-note{color:#bfd1d8;font-size:13px}
/* admin */.admin-body{background:#f6f8f8}.admin-header .admin-title{font-weight:700;color:#5b6c72}.admin-layout{display:grid;grid-template-columns:230px 1fr;gap:28px;padding:34px 0 70px}.admin-sidebar{background:#fff;border:1px solid #e5ebed;border-radius:22px;padding:12px;height:max-content;position:sticky;top:100px}.admin-tab{display:block;width:100%;border:0;background:transparent;text-align:left;padding:13px 14px;border-radius:12px;color:#51636a}.admin-tab.active,.admin-tab:hover{background:#eaf5f8;color:var(--blue);font-weight:700}.admin-panel{display:none}.admin-panel.active{display:block}.admin-headline{display:flex;justify-content:space-between;align-items:end;margin-bottom:22px}.admin-headline h1{font-size:40px}.admin-headline p{color:var(--muted)}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:18px}.stat-card,.admin-card{background:#fff;border:1px solid #e3e9eb;border-radius:20px;box-shadow:0 8px 20px rgba(24,53,66,.04)}.stat-card{padding:22px}.stat-card>span{color:var(--blue);font-size:24px}.stat-card strong{font-size:34px;display:block}.stat-card small{color:var(--muted)}.admin-card{padding:24px;margin-bottom:18px}.tip-card h3{margin-top:0}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.form-grid label{display:flex;flex-direction:column;gap:7px;font-size:13px;font-weight:700;color:#43565e}.span-2{grid-column:1/-1}.form-grid input,.form-grid select,.form-grid textarea{width:100%;padding:12px 13px;border:1px solid #d8e1e4;border-radius:12px;background:#fff;color:#243c46;outline:none}.form-grid input:focus,.form-grid select:focus,.form-grid textarea:focus{border-color:#68aec6;box-shadow:0 0 0 3px rgba(0,117,166,.08)}.checkbox-row{flex-direction:row!important;align-items:center}.checkbox-row input{width:auto!important}.admin-list{display:grid;gap:10px}.admin-list-item{background:#fff;border:1px solid #e2e8ea;border-radius:16px;padding:15px 17px;display:flex;align-items:center;justify-content:space-between}.admin-list-item strong{display:block}.admin-list-item span{display:block;color:var(--muted);font-size:12px;margin-top:4px}.icon-danger{border:0;background:#fff0ef;color:#a44136;width:34px;height:34px;border-radius:50%;font-size:20px}.backup-actions{display:flex;gap:12px;flex-wrap:wrap}.file-label{cursor:pointer}.admin-help{color:var(--muted);max-width:760px}.muted{color:var(--muted)}
@media(max-width:950px){.hero{grid-template-columns:1fr}.hero-visual img{height:420px}.language-grid,.chapter-grid,.section-card-grid,.exercise-grid{grid-template-columns:repeat(2,1fr)}.level-grid{grid-template-columns:repeat(3,1fr)}.admin-layout{grid-template-columns:1fr}.admin-sidebar{position:static;display:flex;overflow:auto}.admin-tab{white-space:nowrap}.stats-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.shell{width:min(100% - 24px,1180px)}.top-nav{display:none}.nav-wrap{height:66px}.admin-shortcut{margin-left:auto}.hero{padding-top:36px;gap:28px}.hero h1{font-size:45px}.hero-visual img{height:320px}.floating-card{display:none}.section-heading{display:block}.section-heading h2{font-size:34px}.language-grid,.chapter-grid,.section-card-grid,.exercise-grid,.level-grid{grid-template-columns:1fr}.page-hero{padding:28px;display:block}.page-hero h1,.page-title h1{font-size:40px}.hero-script{font-size:44px;margin-top:22px}.section-card{grid-template-columns:auto 1fr}.section-card .round-btn{grid-column:2}.footer-wrap{display:block}.footer-note{margin-top:16px}.form-grid{grid-template-columns:1fr}.span-2{grid-column:auto}.stats-grid{grid-template-columns:1fr 1fr}.admin-headline{display:block}}

/* v2 — dopracowany layout publiczny + prywatny panel admina */
.brand-logo-link{padding:0;display:flex;align-items:center;min-width:158px}
.brand-logo{width:150px;height:58px;object-fit:contain;object-position:left center;display:block}
.footer-logo{width:150px;height:58px;object-fit:contain}
.nav-wrap{height:88px}
.top-nav{align-items:center;gap:4px}
.admin-nav-link{font-weight:600;color:var(--blue)}
.hero{grid-template-columns:minmax(0,1.02fr) minmax(460px,.98fr);gap:64px;padding:72px 0 60px}
.hero-copy{min-width:0}
.hero h1{font-size:clamp(50px,5.1vw,72px);letter-spacing:-.025em;white-space:nowrap}
.hero h1 span{display:inline-block}
.hero-copy>p{max-width:650px}
.hero-visual-clean img{height:505px;border-radius:34px}
.hero-visual-clean:after{display:none}
.section-heading-simple{align-items:center}
.section-heading-simple>div{max-width:760px}
.site-footer{border-top:1px solid #e7edef;background:#fbfcfc;padding:28px 0}
.footer-wrap{display:flex;align-items:center;justify-content:space-between;gap:30px}
.footer-note{font-size:14px;color:#6d7b80}

.admin-login-screen{min-height:100vh;display:grid;place-items:center;background:linear-gradient(135deg,#f7fbfc,#f8f4ec);padding:30px}
.admin-login-card{width:min(460px,100%);background:#fff;border:1px solid #e5ecee;border-radius:28px;box-shadow:0 24px 70px rgba(18,64,81,.13);padding:40px}
.admin-login-logo{width:190px;height:90px;object-fit:contain;object-position:left center;margin-bottom:20px}
.admin-login-card h1{font-family:'Playfair Display',serif;font-size:42px;line-height:1;margin:0 0 12px;color:#163947}
.admin-login-card p{color:#6b7b81;margin:0 0 28px}
.admin-login-card form{display:grid;gap:18px}
.admin-login-card label{display:grid;gap:8px;font-weight:700;font-size:14px}
.admin-login-card input{width:100%;border:1px solid #dce6e9;border-radius:14px;padding:14px 15px;outline:none}
.admin-login-card input:focus{border-color:#7ebbd2;box-shadow:0 0 0 3px rgba(0,117,166,.09)}
.login-btn{width:100%}
.login-error{min-height:22px;color:#a44136;font-size:14px}
.back-to-site{display:inline-block;margin-top:22px;color:var(--blue);font-weight:600}
.admin-header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.logout-btn{border:0;background:transparent}
body.locked{overflow:hidden}

@media (max-width:980px){
  .hero{grid-template-columns:1fr;gap:34px;padding-top:42px}
  .hero h1{white-space:normal;font-size:clamp(48px,9vw,68px)}
  .hero-visual-clean img{height:420px}
  .brand-logo{width:125px}
  .top-nav{gap:0;overflow-x:auto}
}
@media (max-width:720px){
  .nav-wrap{height:auto;min-height:82px;align-items:center;flex-wrap:wrap;padding:10px 0}
  .top-nav{width:100%;order:2;padding-bottom:4px}
  .hero h1{font-size:48px}
  .hero-visual-clean img{height:340px}
  .footer-wrap{flex-direction:column;align-items:flex-start}
}

/* v3 — większe logo + prywatny dostęp kursantów */
.nav-wrap{height:108px}
.brand-logo-link{min-width:245px}
.brand-logo{width:225px;height:88px;object-fit:contain;object-position:left center}
.footer-logo{width:205px;height:auto;object-fit:contain}
.site-footer{padding:36px 0}
.user-logout{border:0;background:#eef6f8;color:var(--blue);padding:9px 13px;border-radius:999px;font-weight:600;font-size:13px;margin-left:4px}
.student-gate{min-height:100vh;display:grid;place-items:center;background:linear-gradient(135deg,#f6fbfc 0%,#fff 45%,#f8f4ec 100%);padding:28px}
.student-gate[hidden]{display:none}
.student-gate-card{width:min(560px,100%);background:#fff;border:1px solid #e3ebed;border-radius:30px;box-shadow:0 28px 80px rgba(19,63,80,.13);padding:46px}
.student-gate-logo{display:block;width:250px;height:auto;max-height:155px;object-fit:contain;object-position:left center;margin:-10px 0 22px}
.student-gate-card h1{font-family:'Playfair Display',serif;color:#163947;font-size:44px;line-height:1.05;margin:0 0 14px}
.student-gate-card>p{color:#687980;font-size:17px;margin:0 0 26px}
.student-gate-card form{display:grid;gap:15px}
.student-gate-card label{display:grid;gap:8px;font-size:13px;font-weight:700;color:#43565e}
.student-gate-card input{width:100%;padding:14px 15px;border:1px solid #d7e2e5;border-radius:14px;outline:none;font-size:16px}
.student-gate-card input:focus{border-color:#6eb1ca;box-shadow:0 0 0 3px rgba(0,117,166,.08)}
.gate-btn{width:100%;margin-top:2px}
.gate-message{min-height:24px;font-size:14px;color:#47616b}
.demo-note{margin-top:18px;padding:13px 15px;background:#fff8e9;border:1px solid #f0ddb4;border-radius:13px;color:#7e6531;font-size:13px}
.access-form{display:grid;grid-template-columns:1fr auto;gap:14px;align-items:end}
.access-form label{display:grid;gap:7px;font-size:13px;font-weight:700;color:#43565e}
.access-form input{width:100%;padding:12px 13px;border:1px solid #d8e1e4;border-radius:12px;outline:none}
.access-actions{display:flex;align-items:center;gap:8px}.secondary-btn.tiny{padding:8px 12px;font-size:12px}.access-user.inactive{opacity:.58}
@media(max-width:980px){.brand-logo-link{min-width:175px}.brand-logo{width:165px;height:72px}.nav-wrap{height:92px}.top-nav{margin-left:auto}.user-logout{display:none}}
@media(max-width:720px){.brand-logo{width:150px;height:64px}.brand-logo-link{min-width:150px}.student-gate-card{padding:30px 24px}.student-gate-logo{width:210px}.student-gate-card h1{font-size:36px}.access-form{grid-template-columns:1fr}.top-nav{display:flex;overflow:auto}.nav-link{white-space:nowrap}}

/* === V4 visual updates === */
.nav-wrap{height:92px;gap:24px}
.brand-logo-link{min-width:300px}
.brand-logo{width:280px;height:auto;max-height:110px;object-fit:contain;object-position:left center}
.footer-logo{width:240px;height:auto;object-fit:contain}
.student-gate-logo{width:280px;max-width:100%;height:auto;display:block;margin:0 auto 8px}
.hero{gap:48px;align-items:center}
.hero-visual-clean img{height:560px;object-position:center center}
.footer-wrap{padding:42px 0}
.site-footer{margin-top:40px}

@media(max-width:1100px){
  .brand-logo-link{min-width:240px}
  .brand-logo{width:220px;max-height:86px}
  .footer-logo{width:210px}
}

@media(max-width:980px){
  .nav-wrap{height:88px}
  .brand-logo-link{min-width:200px}
  .brand-logo{width:190px;max-height:74px}
  .hero-visual-clean img{height:460px}
}

@media(max-width:720px){
  .brand-logo-link{min-width:150px}
  .brand-logo{width:160px;max-height:62px}
  .student-gate-logo{width:220px}
  .hero-visual-clean img{height:360px}
  .footer-logo{width:180px}
}

/* === V5 richer admin === */
.form-actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.item-main{display:flex;flex-direction:column;gap:4px;min-width:0}
.item-actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap;justify-content:flex-end}
.admin-list-item{gap:16px}
.secondary-btn.tiny{padding:8px 11px;font-size:12px}
.visibility-pill{border:0;border-radius:999px;padding:7px 10px;font-size:11px;font-weight:700}
.visibility-pill.on{background:#e7f7ef;color:#24734d}
.visibility-pill.off{background:#f4f4f4;color:#777}
.admin-panel .admin-headline p{max-width:560px}
.admin-card textarea{resize:vertical}
.chapter-cover[style*="background-image"]{color:transparent}
@media(max-width:720px){.item-actions{justify-content:flex-start}.admin-list-item{align-items:flex-start;flex-direction:column}.form-actions{align-items:stretch}.form-actions .primary-btn,.form-actions .secondary-btn{width:100%}}

/* === V6: logo, hero bez ramki, upload zdjęć === */
[hidden]{display:none!important}
.site-header{overflow:visible}
.nav-wrap{height:132px}
.brand-logo-link{min-width:195px;height:124px;display:flex;align-items:center;overflow:visible}
.brand-logo{width:190px;height:120px;max-height:none;object-fit:contain;object-position:center center;display:block}
.hero-visual-clean{background:transparent;padding:0;border:0;box-shadow:none}
.hero-visual-clean img{display:block;width:100%;height:540px;object-fit:cover;object-position:center;border-radius:32px;box-shadow:none}
.hero-visual-clean:after{display:none!important}
.image-upload-block>label{display:block;font-weight:700;margin-bottom:8px}
.image-upload-row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.upload-btn{cursor:pointer}
.image-preview{margin-top:14px;width:min(420px,100%);border-radius:18px;overflow:hidden;background:#f4f7f8;border:1px solid #e2e9eb}
.image-preview img{display:block;width:100%;max-height:260px;object-fit:cover}
.field-help{display:block;margin-top:8px;color:#718087;font-size:12px}
.clear-image-btn{background:#f5f6f6;color:#59676c}
@media(max-width:980px){.nav-wrap{height:112px}.brand-logo-link{height:104px;min-width:170px}.brand-logo{width:165px;height:100px}.hero-visual-clean img{height:440px}}
@media(max-width:720px){.nav-wrap{height:94px}.brand-logo-link{height:88px;min-width:145px}.brand-logo{width:140px;height:84px}.hero-visual-clean img{height:340px;border-radius:24px}}

/* Produkcyjna wersja mobilna */
.nav-toggle{display:none;border:0;background:#eef6f8;color:var(--blue);width:44px;height:44px;border-radius:50%;font-size:22px;margin-left:auto}
@media(max-width:720px){
  .nav-wrap{height:auto;min-height:78px;flex-wrap:wrap;padding:10px 0}
  .nav-toggle{display:grid;place-items:center}
  .top-nav{display:none!important;width:100%;flex-direction:column;align-items:stretch;gap:4px;padding:4px 0 12px;overflow:visible}
  .top-nav.open{display:flex!important}
  .nav-link{width:100%;text-align:left;padding:12px 14px}
  .user-logout{margin-left:0}
  .hero{grid-template-columns:1fr!important;padding:34px 0 40px!important;gap:26px!important}
  .hero h1{font-size:clamp(42px,12vw,56px)!important}
  .hero-copy>p{font-size:17px!important}
  .hero-visual-clean img{height:auto!important;aspect-ratio:1/1;object-fit:cover;border-radius:26px}
  .language-grid,.chapter-grid,.section-card-grid,.exercise-grid,.level-grid{grid-template-columns:1fr!important}
  .page-hero{padding:26px!important}
  .page-hero h1,.page-title h1{font-size:36px!important}
  .modal-dialog{width:calc(100% - 16px);margin:1.5vh auto;padding:20px 14px;max-height:97vh;border-radius:18px}
  .embed-frame iframe{min-height:70vh!important}
  .admin-layout{display:block!important}
  .admin-sidebar{display:flex!important;gap:8px;overflow-x:auto;margin-bottom:18px;padding-bottom:6px}
  .admin-tab{white-space:nowrap;flex:0 0 auto}
  .admin-headline{display:block!important}
  .admin-list-item{align-items:flex-start!important;gap:12px;flex-direction:column}
  .item-actions,.access-actions{width:100%;flex-wrap:wrap}
  .item-actions .secondary-btn,.access-actions .secondary-btn{flex:1}
  .form-grid{grid-template-columns:1fr!important}
  .span-2{grid-column:auto!important}
  .image-upload-row{flex-wrap:wrap}
  .footer-wrap{display:block!important}
  .footer-note{margin-top:14px}
}