/* raczpeterantal.hu — shared stylesheet */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#0b0d14;--bg2:#10131c;--bg3:#13161f;
  --border:rgba(255,255,255,0.07);--border2:rgba(255,255,255,0.12);
  --text:#e8eaf0;--text2:rgba(232,234,240,0.70);--text3:rgba(232,234,240,0.40);--text4:rgba(232,234,240,0.22);
  --green:#5DCAA5;--green-dim:rgba(93,202,165,0.12);--green-bd:rgba(93,202,165,0.32);
  --blue:#378ADD;--blue-dim:rgba(55,138,221,0.12);--blue-bd:rgba(55,138,221,0.32);--blue-lt:#85B7EB;
  --amber:#FAC775;--amber-dim:rgba(239,159,39,0.10);--amber-bd:rgba(239,159,39,0.28);
  --pink:#ED93B1;--pink-dim:rgba(212,83,126,0.10);--pink-bd:rgba(212,83,126,0.26);
  --purple:#AFA9EC;--purple-dim:rgba(127,119,221,0.08);--purple-bd:rgba(127,119,221,0.24);
  --red:#F28B82;--red-dim:rgba(210,50,50,0.10);--red-bd:rgba(210,50,50,0.30);
  --grad:linear-gradient(135deg,#1D9E75,#185FA5);
  --grad-logo:linear-gradient(90deg,#5DCAA5,#378ADD);
  --r-sm:10px;--r-md:14px;--r-lg:18px;
  --pad:52px;
  --font:'Inter',system-ui,sans-serif;
}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:var(--font);font-size:18px;line-height:1.7;min-height:100vh;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input[type=button],input[type=submit]{font-family:inherit;cursor:pointer}
select,input,textarea{font-family:inherit}

/* UTILS */
.divider{height:.5px;background:linear-gradient(90deg,transparent,var(--green-bd),rgba(55,138,221,.18),transparent);margin:0 var(--pad) 40px}
.sec-label{font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--text4);padding:0 var(--pad);margin-bottom:22px}

/* BADGES */
.badge{font-size:15px;padding:7px 18px;border-radius:20px;display:inline-block;font-weight:500}
.badge-green{background:var(--green-dim);border:.5px solid var(--green-bd);color:var(--green)}
.badge-blue{background:var(--blue-dim);border:.5px solid var(--blue-bd);color:var(--blue-lt)}
.badge-amber{background:var(--amber-dim);border:.5px solid var(--amber-bd);color:var(--amber)}
.badge-pink{background:var(--pink-dim);border:.5px solid var(--pink-bd);color:var(--pink)}
.badge-muted{background:rgba(255,255,255,.04);border:.5px solid var(--border);color:var(--text3)}

/* BUTTONS — both same ghost style */
.btn-primary{font-size:18px;background:var(--grad);color:#fff;border:none;border-radius:var(--r-sm);padding:15px 34px;font-weight:600;cursor:pointer;transition:opacity .15s;display:inline-block;letter-spacing:.01em}
.btn-primary:hover{opacity:.87}
.btn-ghost{font-size:18px;background:transparent;color:var(--text2);border:.5px solid rgba(232,234,240,.18);border-radius:var(--r-sm);padding:15px 34px;font-weight:500;cursor:pointer;transition:border-color .15s,color .15s;display:inline-block;letter-spacing:.01em}
.btn-ghost:hover{border-color:var(--green-bd);color:var(--green)}

/* NAV */
.nav{position:sticky;top:0;z-index:100;background:rgba(11,13,20,.97);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:.5px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:22px var(--pad);gap:24px}
.nav-logo{font-size:21px;font-weight:700;color:var(--text);white-space:nowrap;letter-spacing:-.01em;transition:opacity .15s}
.nav-logo:hover{opacity:.8}
.nav-logo .dot{background:var(--grad-logo);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.nav-links{display:flex;gap:32px;flex:1;justify-content:center}
.nav-links a{font-size:16px;color:var(--text3);text-decoration:none;transition:color .15s;white-space:nowrap;padding-bottom:4px;border-bottom:1.5px solid transparent}
.nav-links a:hover,.nav-links a.active{color:var(--green)}
.nav-links a.active{border-bottom-color:var(--green)}
.nav-right{display:flex;align-items:center;gap:14px;flex-shrink:0}
.lang-toggle{display:flex;align-items:center;background:rgba(255,255,255,.05);border:.5px solid var(--border);border-radius:24px;padding:4px;gap:2px}
.lt-opt{display:flex;align-items:center;gap:6px;padding:7px 16px;border-radius:20px;cursor:pointer;font-size:14px;font-weight:500;color:var(--text3);user-select:none;transition:all .18s}
.lt-opt.active{background:linear-gradient(135deg,rgba(29,158,117,.2),rgba(24,95,165,.2));color:var(--text);border:.5px solid var(--green-bd);pointer-events:none;opacity:.5;cursor:default}
.lt-opt:not(.active){opacity:1;cursor:pointer}
.nav-hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:4px}
.nav-hamburger span{display:block;width:24px;height:2px;background:var(--text2);border-radius:2px}
.mobile-menu{display:none;flex-direction:column;background:var(--bg2);border-bottom:.5px solid var(--border);position:sticky;top:72px;z-index:99}
.mobile-menu.open{display:flex}
.mobile-menu a{font-size:17px;color:var(--text2);padding:18px var(--pad);border-bottom:.5px solid rgba(255,255,255,.04);transition:color .15s,background .15s}
.mobile-menu a:hover,.mobile-menu a.active{color:var(--green);background:rgba(93,202,165,.04)}
.mobile-lang{display:flex;gap:10px;padding:16px var(--pad);border-bottom:.5px solid rgba(255,255,255,.04)}
.ml-opt{display:flex;align-items:center;gap:7px;background:rgba(255,255,255,.04);border:.5px solid var(--border);border-radius:10px;padding:9px 18px;cursor:pointer;font-size:15px;color:var(--text3);transition:all .15s}
.ml-opt.active{border-color:var(--green-bd);color:var(--green);background:var(--green-dim);pointer-events:none;opacity:.5;cursor:default}

/* FOOTER */
.footer{border-top:.5px solid var(--border);padding:32px var(--pad);margin-top:8px}
.footer-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px;flex-wrap:wrap;gap:16px}
.footer-logo{font-size:18px;font-weight:500;color:var(--text3)}
.footer-logo .dot{background:var(--grad-logo);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.socials{display:flex;gap:8px}
.social-btn{width:44px;height:44px;border-radius:var(--r-sm);border:.5px solid rgba(255,255,255,.08);background:rgba(255,255,255,.04);display:flex;align-items:center;justify-content:center;color:var(--text3);font-size:20px;transition:all .15s;text-decoration:none}
.social-btn:hover{border-color:var(--green-bd);color:var(--green);transform:translateY(-1px)}
.footer-bot{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px}
.footer-copy{font-size:14px;color:var(--text4)}
.footer-mail a{font-size:14px;color:rgba(93,202,165,.52)}

/* HERO */
.hero{display:flex;align-items:center;gap:72px;padding:96px var(--pad) 64px;position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;top:-120px;right:60px;width:480px;height:480px;border-radius:50%;background:radial-gradient(circle,rgba(55,138,221,.06) 0%,transparent 70%);pointer-events:none}
.hero-text{flex:1;position:relative;z-index:1}
.hero-eyebrow{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--green);margin-bottom:22px;display:flex;align-items:center;gap:12px}
.hero-eyebrow::before{content:'';width:36px;height:1.5px;background:linear-gradient(90deg,var(--green),transparent);display:block;flex-shrink:0}
.hero-name{font-size:58px;font-weight:700;line-height:1.08;margin-bottom:18px;color:#E8EAF0;letter-spacing:-.025em}
.hero-sub{font-size:20px;color:var(--text3);margin-bottom:44px;line-height:1.7}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap}
.avatar-ring{width:220px;height:220px;border-radius:50%;padding:3px;background:linear-gradient(135deg,#5DCAA5,#378ADD);flex-shrink:0;position:relative;z-index:1}
.avatar-ring img{width:100%;height:100%;border-radius:50%;object-fit:cover;background:#1a1d2e}
.badges-row{display:flex;gap:12px;flex-wrap:wrap;padding:0 var(--pad) 56px}

/* TRAINING CARD */
.tgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px;padding:0 var(--pad) 20px}
.tcard{background:rgba(255,255,255,.03);border:1px solid var(--green-bd);border-radius:var(--r-lg);padding:34px;cursor:pointer;position:relative;overflow:hidden;transition:border-color .15s,transform .15s;text-decoration:none;display:block;color:inherit}
.tcard::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--green),var(--blue),transparent)}
.tcard:hover{border-color:rgba(93,202,165,.5);transform:translateY(-3px)}
.tcard-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.tcard-icon{font-size:36px;background:var(--grad-logo);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.tcard-pill{font-size:13px;background:var(--green-dim);border:.5px solid var(--green-bd);color:var(--green);border-radius:20px;padding:6px 16px;font-weight:500}
.tcard-name{font-size:24px;font-weight:600;color:#E8EAF0;margin-bottom:12px}
.tcard-desc{font-size:17px;color:var(--text3);line-height:1.7;margin-bottom:26px}
.tcard-foot{display:flex;align-items:center;justify-content:space-between}
.tcard-ch{font-size:15px;color:var(--text4)}
.tcard-arr{font-size:22px;color:var(--green)}

/* SELENIUM TILES */
.stiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px}
.stile{border-radius:var(--r-lg);padding:32px 26px;text-decoration:none;display:block;border:.5px solid;position:relative;overflow:hidden;transition:transform .15s}
.stile::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;opacity:.7}
.stile:hover{transform:translateY(-3px)}
.stile-green{background:rgba(93,202,165,.07);border-color:rgba(93,202,165,.24)}.stile-green::before{background:linear-gradient(90deg,transparent,var(--green),transparent)}
.stile-blue{background:rgba(55,138,221,.07);border-color:rgba(55,138,221,.24)}.stile-blue::before{background:linear-gradient(90deg,transparent,var(--blue),transparent)}
.stile-purple{background:var(--purple-dim);border-color:var(--purple-bd)}.stile-purple::before{background:linear-gradient(90deg,transparent,#7F77DD,transparent)}
.stile-amber{background:var(--amber-dim);border-color:rgba(239,159,39,.22)}.stile-amber::before{background:linear-gradient(90deg,transparent,#EF9F27,transparent)}
.stile-pink{background:var(--pink-dim);border-color:rgba(212,83,126,.22)}.stile-pink::before{background:linear-gradient(90deg,transparent,#D4537E,transparent)}
.stile-icon{font-size:40px;margin-bottom:20px}
.stile-icon.c-green{color:var(--green)}.stile-icon.c-blue{color:var(--blue-lt)}.stile-icon.c-purple{color:var(--purple)}.stile-icon.c-amber{color:var(--amber)}.stile-icon.c-pink{color:var(--pink)}
.stile-name{font-size:17px;font-weight:500;color:#e0e2ea;margin-bottom:10px;display:flex;align-items:center;justify-content:space-between}
.stile-desc{font-size:15px;color:var(--text3);line-height:1.6}

/* CHAPTER GRID — bigger tiles, colored backgrounds */
.cgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:14px}
.chapter-item{background:rgba(93,202,165,.05);border:.5px solid rgba(93,202,165,.2);border-radius:var(--r-lg);padding:22px 20px;display:flex;flex-direction:column;align-items:flex-start;gap:6px;text-decoration:none;transition:border-color .15s,background .15s,transform .15s;position:relative;min-height:100px}
.chapter-item:not(.locked):hover{border-color:var(--green-bd);background:rgba(93,202,165,.12);transform:translateY(-2px)}
.chapter-item.exercise{background:rgba(55,138,221,.06);border-color:rgba(55,138,221,.22)}
.chapter-item.exercise:not(.locked):hover{border-color:rgba(55,138,221,.5);background:rgba(55,138,221,.12)}
.ch-num{font-size:18px;font-weight:700;color:var(--green);min-width:32px}
.chapter-item.exercise .ch-num{color:var(--blue-lt)}
.ch-label{font-size:17px;color:var(--text2);font-weight:500}
.chapter-item.locked{opacity:.35;cursor:not-allowed;pointer-events:none;background:rgba(255,255,255,.02);border-color:rgba(255,255,255,.06)}
.chapter-item.locked .ch-num,.chapter-item.locked .ch-label{color:var(--text4)}
.lock-badge{position:absolute;top:9px;right:9px;width:20px;height:20px;border-radius:50%;background:rgba(220,50,50,.9);display:flex;align-items:center;justify-content:center;font-size:10px;color:#fff;font-weight:700;line-height:1}

/* PAGE HERO */
.page-hero{padding:48px var(--pad) 36px;position:relative}
.page-hero::after{content:'';position:absolute;bottom:0;left:0;right:0;height:.5px;background:linear-gradient(90deg,transparent,var(--green-bd),rgba(55,138,221,.18),transparent)}
.back-link{font-size:15px;color:var(--text4);display:inline-flex;align-items:center;gap:7px;margin-bottom:22px;transition:color .15s}
.back-link:hover{color:var(--green)}
.page-title{font-size:42px;font-weight:700;color:#E8EAF0;margin-bottom:10px}
.page-sub{font-size:19px;color:var(--text3)}

/* ABOUT */
.about-hero{display:flex;align-items:flex-start;gap:40px;padding:56px var(--pad) 0;margin-bottom:40px}
.about-avatar{width:140px;height:140px;border-radius:50%;padding:3px;background:linear-gradient(135deg,#5DCAA5,#378ADD);flex-shrink:0}
.about-avatar img{width:100%;height:100%;border-radius:50%;object-fit:cover;background:#1a1d2e}
.about-name{font-size:32px;font-weight:700;color:#E8EAF0;margin-bottom:8px}
.about-role{font-size:18px;color:var(--text3);margin-bottom:18px;line-height:1.5}
.about-badges{display:flex;gap:10px;flex-wrap:wrap}
.about-body{padding:0 var(--pad);margin-bottom:48px}
.about-body p{font-size:20px;color:var(--text2);line-height:1.9;margin-bottom:26px}

/* VIDEO — quarter width, centered */
.video-section{padding:0 var(--pad) 40px;display:flex;justify-content:center}
.video-wrap{border-radius:var(--r-lg);overflow:hidden;background:var(--bg3);border:.5px solid var(--border);width:50%;min-width:320px}
.video-wrap iframe{display:block;width:100%;aspect-ratio:16/9;border:none}
.video-cap{font-size:14px;color:var(--text3);padding:12px 16px;border-top:.5px solid var(--border);display:flex;align-items:center;gap:10px;background:rgba(255,255,255,.02)}
.video-cap i{color:var(--pink);font-size:17px}

/* CERT SECTION */
.cert-section{padding:0 var(--pad) 48px}
.cert-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:16px;margin-bottom:18px}
.cert-card{background:rgba(255,255,255,.03);border:.5px solid rgba(255,255,255,.09);border-radius:var(--r-lg);padding:26px 28px;display:flex;align-items:center;gap:24px;text-decoration:none;transition:all .18s;position:relative;overflow:hidden;cursor:pointer}
.cert-card::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;opacity:0;transition:opacity .18s}
.cert-card:hover{border-color:var(--green-bd);background:rgba(93,202,165,.05);transform:translateY(-3px)}
.cert-card:hover::before{opacity:1}
.cc-green::before{background:linear-gradient(90deg,transparent,var(--green),transparent)}
.cc-blue::before{background:linear-gradient(90deg,transparent,var(--blue),transparent)}
.cc-amber::before{background:linear-gradient(90deg,transparent,#EF9F27,transparent)}
.cert-icon{width:60px;height:60px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:28px;flex-shrink:0}
.ci-green{background:var(--green-dim);border:.5px solid var(--green-bd);color:var(--green)}
.ci-blue{background:var(--blue-dim);border:.5px solid var(--blue-bd);color:var(--blue-lt)}
.ci-amber{background:var(--amber-dim);border:.5px solid var(--amber-bd);color:var(--amber)}
.cert-name{font-size:19px;font-weight:600;color:#E8EAF0;margin-bottom:5px}
.cert-desc{font-size:15px;color:var(--text3);line-height:1.5}
.cert-arrow{font-size:17px;color:rgba(232,234,240,.18);margin-left:auto;flex-shrink:0;transition:color .18s}
.cert-card:hover .cert-arrow{color:var(--green)}

/* CERT LIGHTBOX */
.cert-lightbox{display:none;position:fixed;inset:0;background:rgba(0,0,0,.8);z-index:500;align-items:center;justify-content:center;padding:24px;backdrop-filter:blur(6px)}
.cert-lightbox.open{display:flex}
.cert-lb-inner{background:var(--bg2);border:.5px solid var(--border2);border-radius:var(--r-lg);max-width:700px;width:100%;position:relative;overflow:hidden}
.cert-lb-inner::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--green-bd),rgba(55,138,221,.3),transparent)}
.cert-lb-header{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;border-bottom:.5px solid var(--border)}
.cert-lb-title{font-size:20px;font-weight:600;color:#E8EAF0}
.cert-lb-close{width:36px;height:36px;border-radius:8px;background:rgba(255,255,255,.06);border:.5px solid var(--border);color:var(--text3);font-size:18px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .15s}
.cert-lb-close:hover{background:rgba(255,255,255,.12);color:var(--text)}
.cert-lb-body{padding:24px}
.cert-lb-body img{width:100%;border-radius:var(--r-md);border:.5px solid var(--border)}

/* CONF CARD */
.conf-card{background:rgba(55,138,221,.07);border:.5px solid var(--blue-bd);border-radius:var(--r-lg);padding:26px 28px;display:flex;align-items:center;gap:20px;text-decoration:none;transition:all .18s;margin-bottom:32px}
.conf-card:hover{border-color:rgba(55,138,221,.55);transform:translateY(-3px);background:rgba(55,138,221,.12)}
.conf-icon{font-size:32px;color:var(--blue-lt);flex-shrink:0}
.conf-name{font-size:19px;font-weight:500;color:#E8EAF0;margin-bottom:5px}
.conf-desc{font-size:15px;color:var(--text3)}
.conf-ext{font-size:18px;color:rgba(232,234,240,.2);margin-left:auto;flex-shrink:0;transition:color .18s}
.conf-card:hover .conf-ext{color:var(--blue-lt)}

/* CONTACT */
.contact-section{padding:0 var(--pad)}
.contact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px;margin-bottom:32px}
.city-card{background:rgba(255,255,255,.03);border:.5px solid var(--border);border-radius:var(--r-lg);overflow:hidden;position:relative}
.city-card::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--green-bd),transparent)}
.city-header{padding:22px 28px 18px;display:flex;align-items:center;gap:14px;border-bottom:.5px solid var(--border)}
.city-icon{font-size:24px;color:var(--green)}
.city-name{font-size:20px;font-weight:600;color:#E8EAF0}
.city-body{padding:20px 28px}
.cinfo-row{display:flex;align-items:center;gap:16px;margin-bottom:18px}
.cinfo-row:last-child{margin-bottom:0}
.cinfo-icon{width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0}
.cii-green{background:rgba(93,202,165,.1);border:.5px solid rgba(93,202,165,.2);color:var(--green)}
.cii-blue{background:rgba(55,138,221,.1);border:.5px solid rgba(55,138,221,.2);color:var(--blue-lt)}
.cinfo-label{font-size:13px;color:var(--text4);margin-bottom:3px;text-transform:uppercase;letter-spacing:.06em}
.cinfo-value{font-size:16px;color:var(--text2)}
.cinfo-value a{color:rgba(93,202,165,.7);transition:color .15s}
.cinfo-value a:hover{color:var(--green)}
.form-card{background:rgba(255,255,255,.025);border:.5px solid var(--border);border-radius:var(--r-lg);padding:36px;margin-bottom:8px;position:relative;overflow:hidden}
.form-card::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--green-bd),rgba(55,138,221,.2),transparent)}
.form-title{font-size:26px;font-weight:700;color:#E8EAF0;margin-bottom:6px}
.form-sub{font-size:16px;color:var(--text3);margin-bottom:28px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:18px}
.form-group{display:flex;flex-direction:column;gap:8px;margin-bottom:18px}
.form-group label{font-size:14px;color:var(--text3);letter-spacing:.06em;text-transform:uppercase}
.form-group input,.form-group textarea,.form-group select{background:rgba(255,255,255,.04);border:.5px solid var(--border);border-radius:var(--r-sm);padding:14px 18px;font-size:17px;color:var(--text);outline:none;resize:none;transition:border-color .15s,background .15s;width:100%;-webkit-appearance:none;appearance:none}
.form-group input:focus,.form-group textarea:focus,.form-group select:focus{border-color:var(--green-bd);background:rgba(93,202,165,.04)}
.form-group textarea{height:130px}
.form-group select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='rgba(232,234,240,0.4)' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center;padding-right:44px}
.form-group select option{background:var(--bg3);color:var(--text)}
.form-submit{width:100%;background:var(--grad);color:#fff;border:none;border-radius:var(--r-sm);padding:16px;font-size:17px;font-weight:600;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:12px;transition:opacity .15s}
.form-submit:hover{opacity:.87}
.success-msg{display:none;background:rgba(93,202,165,.08);border:.5px solid rgba(93,202,165,.3);border-radius:12px;padding:16px 20px;font-size:16px;color:var(--green);margin-top:16px;align-items:center;gap:12px}
.success-msg.show{display:flex}

/* CHAPTERS */
.chapter-content{padding:40px var(--pad)}
.exercise-block{background:rgba(255,255,255,.025);border:.5px solid var(--border);border-radius:var(--r-lg);padding:36px;margin-bottom:28px;position:relative;overflow:visible}
.exercise-block::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;border-radius:var(--r-lg) var(--r-lg) 0 0}
.eb-green::before{background:linear-gradient(90deg,transparent,var(--green),transparent)}
.eb-blue::before{background:linear-gradient(90deg,transparent,var(--blue),transparent)}
.eb-amber::before{background:linear-gradient(90deg,transparent,#EF9F27,transparent)}
.eb-purple::before{background:linear-gradient(90deg,transparent,#7F77DD,transparent)}
.eb-pink::before{background:linear-gradient(90deg,transparent,#D4537E,transparent)}
.ex-title{font-size:22px;font-weight:600;color:#E8EAF0;margin-bottom:28px;display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.ex-tag{font-size:13px;padding:5px 14px;border-radius:20px;font-weight:400}
.tag-g{background:var(--green-dim);border:.5px solid var(--green-bd);color:var(--green)}
.tag-b{background:var(--blue-dim);border:.5px solid var(--blue-bd);color:var(--blue-lt)}
.tag-a{background:var(--amber-dim);border:.5px solid var(--amber-bd);color:var(--amber)}
.tag-p{background:var(--purple-dim);border:.5px solid var(--purple-bd);color:var(--purple)}
.tag-pk{background:var(--pink-dim);border:.5px solid var(--pink-bd);color:var(--pink)}

/* TILES */
.tile-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:14px}
.tile{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:32px 18px;min-height:120px;background:rgba(255,255,255,.04);border:.5px solid var(--border);border-radius:var(--r-md);cursor:pointer;font-size:17px;font-weight:500;color:var(--text2);transition:all .15s;text-align:center;position:relative;user-select:none}
.tile input[type=radio],.tile input[type=checkbox]{position:absolute;opacity:0;width:100%;height:100%;top:0;left:0;cursor:pointer;margin:0}
.tile .tile-dot{width:20px;height:20px;border-radius:50%;border:2px solid rgba(255,255,255,.2);flex-shrink:0;transition:all .15s;pointer-events:none}
.tile .tile-box{width:20px;height:20px;border-radius:5px;border:2px solid rgba(255,255,255,.2);flex-shrink:0;transition:all .15s;pointer-events:none}
.tile-label{pointer-events:none}
.tile-r:has(input:checked){border-color:var(--green-bd);color:var(--green);background:rgba(93,202,165,.1)}
.tile-r:has(input:checked) .tile-dot{border-color:var(--green);background:var(--green);box-shadow:inset 0 0 0 3px var(--bg)}
.tile-r:hover{border-color:var(--green-bd);color:var(--green);background:rgba(93,202,165,.06)}
.tile-r:hover .tile-dot{border-color:var(--green)}
.tile-c:has(input:checked){border-color:var(--blue-bd);color:var(--blue-lt);background:rgba(55,138,221,.1)}
.tile-c:has(input:checked) .tile-box{border-color:var(--blue-lt);background:var(--blue-lt)}
.tile-c:hover{border-color:var(--blue-bd);color:var(--blue-lt);background:rgba(55,138,221,.06)}
.tile-c:hover .tile-box{border-color:var(--blue-lt)}
.tile.tile-disabled{opacity:.4;cursor:not-allowed}
.tile.tile-disabled input{cursor:not-allowed}

/* FIELDS */
.field-row{display:flex;flex-wrap:wrap;gap:20px;align-items:flex-start}
.fw{display:flex;flex-direction:column;gap:8px}
.fw label{font-size:16px;color:rgba(232,234,240,.55);letter-spacing:.05em;text-transform:uppercase;margin-bottom:8px;display:block}
/* styled select — custom arrow, no white box */
.fw select{background:rgba(255,255,255,.05);border:.5px solid var(--border);border-radius:var(--r-md);padding:14px 44px 14px 18px;font-size:17px;color:var(--text);outline:none;min-width:240px;transition:border-color .15s,background .15s;-webkit-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='rgba(232,234,240,0.35)' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center}
.fw select:focus{border-color:var(--green-bd);background-color:rgba(93,202,165,.03)}
.fw select option{background:var(--bg3);color:var(--text)}
.fw select:disabled{opacity:.4;cursor:not-allowed}
.fw input[type=text],.fw textarea,.fw input[type=number]{background:rgba(255,255,255,.05);border:.5px solid var(--border);border-radius:var(--r-md);padding:14px 18px;font-size:17px;color:var(--text);outline:none;min-width:240px;resize:none;transition:border-color .15s,background .15s}
.fw input[type=text]:focus,.fw textarea:focus,.fw input[type=number]:focus{border-color:var(--green-bd);background:rgba(93,202,165,.03)}
.fw input[type=text][readonly]{color:var(--text3)}
.fw input[type=text]:disabled,.fw input[type=number]:disabled{opacity:.4;cursor:not-allowed}

/* EX BUTTONS */
.ex-btn{font-size:17px;padding:13px 26px;border-radius:var(--r-md);cursor:pointer;border:.5px solid;font-weight:500;transition:all .15s;font-family:inherit}
.ex-btn-g{background:var(--green-dim);border-color:var(--green-bd);color:var(--green)}.ex-btn-g:hover{background:rgba(93,202,165,.22)}
.ex-btn-b{background:var(--blue-dim);border-color:var(--blue-bd);color:var(--blue-lt)}.ex-btn-b:hover{background:rgba(55,138,221,.22)}
.ex-btn-d{background:rgba(255,255,255,.04);border-color:var(--border);color:var(--text4);cursor:not-allowed;opacity:.5}
.ex-btn-r{background:var(--red-dim);border-color:var(--red-bd);color:var(--red)}.ex-btn-r:hover{background:rgba(210,50,50,.2)}
.ex-btn-a{background:var(--amber-dim);border-color:var(--amber-bd);color:var(--amber)}.ex-btn-a:hover{background:rgba(239,159,39,.2)}
.static-txt{font-size:19px;color:var(--text2);line-height:1.8;text-align:center}
.hint-txt{font-size:16px;color:rgba(232,234,240,.45);margin-top:14px;display:flex;align-items:center;gap:8px}

/* BTN GRIDS */
.btn-equal-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;max-width:620px;margin:20px auto}
.btn-equal-grid input[type=button]{width:100%;font-size:16px;padding:15px 22px;border-radius:var(--r-md);border:.5px solid;font-weight:500;transition:all .15s;font-family:inherit;text-align:center}
.btn-window-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:14px}
.btn-window-grid div{font-size:16px;padding:15px 22px;border-radius:var(--r-md);cursor:pointer;border:.5px solid;font-weight:500;transition:all .15s;text-align:center}

/* TIMER */
.timer-wrap{display:flex;align-items:center;background:rgba(255,255,255,.05);border:.5px solid var(--border2);border-radius:var(--r-md);overflow:hidden;width:fit-content}
.timer-wrap input[type=number]{background:transparent;border:none;outline:none;padding:14px 18px;font-size:22px;font-weight:700;color:var(--text);width:120px;text-align:center;font-family:inherit;-moz-appearance:textfield}
.timer-wrap input[type=number]::-webkit-inner-spin-button,.timer-wrap input[type=number]::-webkit-outer-spin-button{-webkit-appearance:none}
.timer-wrap .unit{font-size:15px;color:var(--text4);padding-right:20px;white-space:nowrap}

/* AJAX */
.ajaxdiv-styled{display:none;background:rgba(93,202,165,.06);border:.5px solid var(--green-bd);border-radius:var(--r-md);padding:20px 24px;font-size:17px;color:var(--text2);margin-top:18px;line-height:1.65}
.html5div-styled{background:rgba(255,255,255,.03);border:.5px solid var(--border);border-radius:var(--r-md);padding:20px 24px;font-size:17px;color:var(--text2);min-height:72px;line-height:1.65;outline:none;transition:border-color .15s}
.html5div-styled:focus{border-color:var(--green-bd)}
.ajax-loading{display:none;align-items:center;gap:12px;font-size:15px;color:var(--text4);padding:10px 0}
.mini-loader{width:18px;height:18px;border:2px solid rgba(93,202,165,.15);border-top-color:var(--green);border-radius:50%;animation:spin .8s linear infinite;flex-shrink:0}
@keyframes spin{to{transform:rotate(360deg)}}

/* SPANNER — fixed so it covers whole viewport */
.spanner{display:none;position:fixed;inset:0;background:rgba(11,13,20,.88);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);z-index:999;flex-direction:column;align-items:center;justify-content:center;gap:32px}
.spanner.show{display:flex}
.loader{width:64px;height:64px;border:3px solid rgba(93,202,165,.15);border-top-color:var(--green);border-radius:50%;animation:spin .8s linear infinite}
.spanner-title{font-size:26px;font-weight:500;color:rgba(232,234,240,.8);text-align:center}
.spanner-sub{font-size:17px;color:var(--text4);text-align:center;margin-top:-20px}
.prog-wrap{width:300px;height:5px;background:rgba(255,255,255,.08);border-radius:4px;overflow:hidden}
.prog-bar{height:100%;background:linear-gradient(90deg,var(--green),var(--blue));border-radius:4px;width:0%;transition:width .1s linear}

/* FAKE ALERTS */
.fake-alert{display:none;background:rgba(127,119,221,.1);border:.5px solid rgba(127,119,221,.35);border-radius:12px;padding:16px 20px;font-size:16px;color:var(--purple);margin-top:16px;align-items:center;gap:12px}
.fake-alert.show{display:flex;animation:fadeIn .2s ease}
.dbl-alert{display:none;background:rgba(93,202,165,.08);border:.5px solid rgba(93,202,165,.3);border-radius:12px;padding:16px 20px;font-size:16px;color:var(--green);margin-top:16px;align-items:center;gap:12px}
.dbl-alert.show{display:flex;animation:fadeIn .2s ease}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}

/* HOVER ZONE */
.hover-zone{background:rgba(127,119,221,.07);border:.5px solid rgba(127,119,221,.25);border-radius:16px;padding:56px 36px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;cursor:pointer;transition:all .18s;position:relative;overflow:visible;min-height:260px}
.hover-zone::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,#7F77DD,transparent)}
.hover-zone:hover{background:rgba(127,119,221,.14);border-color:rgba(127,119,221,.5)}
.hover-zone:hover .hover-icon{transform:scale(1.1);color:rgba(127,119,221,.8)}
.hover-zone:hover .hover-title{color:var(--purple)}
.hover-icon{font-size:60px;color:rgba(127,119,221,.35);margin-bottom:18px;transition:all .2s}
.hover-title{font-size:22px;font-weight:500;color:rgba(232,234,240,.55);transition:color .18s}
.hover-sub{font-size:15px;color:var(--text4);margin-top:10px}
.id-badge{position:absolute;top:14px;right:14px;font-size:12px;background:rgba(127,119,221,.12);border:.5px solid rgba(127,119,221,.28);color:rgba(175,169,236,.7);border-radius:20px;padding:4px 12px}

/* AUCTION */
.auction-card{background:rgba(239,159,39,.06);border:.5px solid rgba(239,159,39,.25);border-radius:14px;padding:24px 26px}
.auction-bid{font-size:20px;color:var(--text2);margin-bottom:16px;line-height:1.5}
.auction-bid strong{color:var(--amber);font-weight:600}

/* CH03 COLOR PICKER */
.color-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.color-tile{position:relative;cursor:pointer}
.color-tile input[type=checkbox]{position:absolute;opacity:0;width:0;height:0}
.color-swatch{border-radius:14px;height:84px;display:flex;align-items:flex-end;justify-content:center;padding-bottom:12px;border:2px solid transparent;transition:all .15s;position:relative;overflow:hidden}
.color-swatch::after{content:'';position:absolute;inset:0;background:rgba(0,0,0,.25)}
.color-label{font-size:13px;font-weight:600;color:#fff;position:relative;z-index:1;text-shadow:0 1px 3px rgba(0,0,0,.6)}
.color-check{position:absolute;top:10px;right:10px;width:22px;height:22px;border-radius:50%;background:#fff;display:flex;align-items:center;justify-content:center;font-size:12px;color:#0b0d14;font-weight:700;opacity:0;transition:opacity .15s;z-index:2}
.color-tile input:checked ~ .color-swatch{border-color:#fff;box-shadow:0 0 0 3px rgba(255,255,255,.2)}
.color-tile input:checked ~ .color-swatch .color-check{opacity:1}
.c-black .color-swatch{background:linear-gradient(135deg,#1a1a1a,#3d3d3d)}
.c-white .color-swatch{background:linear-gradient(135deg,#e8e8e8,#fff);border-color:rgba(255,255,255,.3)}
.c-white .color-swatch::after{background:rgba(0,0,0,.08)}
.c-white .color-label{color:#333;text-shadow:none}
.c-white .color-check{background:#333;color:#fff}
.c-white input:checked ~ .color-swatch{border-color:#333}
.c-red .color-swatch{background:linear-gradient(135deg,#8B0000,#DC2626)}
.c-brown .color-swatch{background:linear-gradient(135deg,#5C2E00,#92400E)}
.c-silver .color-swatch{background:linear-gradient(135deg,#6B7280,#C0C0C0)}
.color-hint{font-size:13px;color:var(--text4);margin-top:14px;text-align:center}

/* CH02 */
.ch02-display{background:rgba(255,255,255,.04);border:.5px solid var(--border2);border-radius:var(--r-md);padding:18px 28px;font-size:20px;font-weight:500;color:var(--text3);text-align:center;margin-bottom:22px;transition:background .3s,color .3s,border-color .3s;min-height:64px;display:flex;align-items:center;justify-content:center}
.ch02-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px}
.ch02-grid input[type=button]{width:100%;font-size:16px;padding:15px 22px;border-radius:var(--r-md);border:.5px solid rgba(255,255,255,.12);background:rgba(255,255,255,.04);font-weight:500;font-family:inherit;cursor:pointer;transition:all .15s;color:var(--text2)}
.ch02-grid input[type=button]:hover{border-color:var(--green-bd);background:rgba(93,202,165,.06);color:var(--green)}
.random-area{position:relative;height:220px;background:rgba(255,255,255,.02);border:.5px solid var(--border);border-radius:14px;overflow:hidden;margin-top:18px}
.random-area input[type=button]{position:absolute;top:90px;left:90px;font-size:16px;padding:14px 26px;border-radius:12px;border:.5px solid rgba(127,119,221,.35);background:rgba(127,119,221,.1);color:var(--purple);font-weight:500;cursor:pointer;font-family:inherit;transition:all .15s}
.random-hint{position:absolute;bottom:14px;right:18px;font-size:13px;color:var(--text4)}

/* CH03 two-col */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:28px}

/* POPUP PAGES */
.popup-page{min-height:100vh;background:var(--bg);display:flex;flex-direction:column}
.popup-content{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:48px;text-align:center}
.popup-title{font-size:36px;font-weight:700;color:#E8EAF0;margin-bottom:18px}
.popup-text{font-size:20px;color:var(--text2);margin-bottom:36px;line-height:1.6}
.popup-close{font-size:17px;background:var(--grad);color:#fff;border:none;border-radius:var(--r-sm);padding:14px 32px;cursor:pointer;font-weight:600;font-family:inherit;transition:opacity .15s}
.popup-close:hover{opacity:.87}

/* COOKIE */
.cookie-banner{position:fixed;bottom:0;left:0;right:0;background:var(--bg2);border-top:.5px solid var(--border);padding:20px var(--pad);display:flex;align-items:center;gap:22px;flex-wrap:wrap;z-index:100}
.cookie-banner::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--green-bd),rgba(55,138,221,.25),transparent)}
.cookie-icon{font-size:26px;color:var(--green);flex-shrink:0}
.cookie-text{flex:1;min-width:220px;font-size:15px;color:var(--text2);line-height:1.6}
.cookie-text a{color:rgba(93,202,165,.7)}
.cookie-btns{display:flex;gap:10px;flex-wrap:wrap;flex-shrink:0}
.c-reject{font-size:15px;background:transparent;color:var(--text3);border:.5px solid var(--border);border-radius:9px;padding:10px 20px;cursor:pointer}
.c-settings{font-size:15px;background:transparent;color:var(--text2);border:.5px solid var(--border2);border-radius:9px;padding:10px 20px;cursor:pointer}
.c-settings:hover{border-color:var(--blue-bd);color:var(--blue-lt)}
.c-accept{font-size:15px;background:var(--grad);color:#fff;border:none;border-radius:9px;padding:10px 22px;cursor:pointer;font-weight:600}
.c-accept:hover{opacity:.87}
.modal-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.65);z-index:200;align-items:flex-end;justify-content:center}
.modal-overlay.open{display:flex}
.cookie-modal{background:var(--bg2);border:.5px solid var(--border2);border-radius:18px 18px 0 0;padding:32px;width:100%;max-width:600px;position:relative}
.cookie-modal::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--green-bd),rgba(55,138,221,.3),transparent);border-radius:18px 18px 0 0}
.modal-title{font-size:20px;font-weight:600;color:#E8EAF0;margin-bottom:6px}
.modal-sub{font-size:14px;color:var(--text3);margin-bottom:24px}
.pref-row{display:flex;align-items:center;justify-content:space-between;padding:14px 0;border-bottom:.5px solid var(--border);gap:18px}
.pref-row:last-of-type{border-bottom:none}
.pref-name{font-size:15px;font-weight:500;color:#E8EAF0;margin-bottom:3px}
.pref-desc{font-size:13px;color:var(--text3);line-height:1.5}
.toggle{position:relative;width:40px;height:22px;flex-shrink:0}
.toggle input{opacity:0;width:0;height:0;position:absolute}
.toggle-track{position:absolute;inset:0;border-radius:20px;background:rgba(255,255,255,.1);border:.5px solid var(--border2);cursor:pointer;transition:background .2s}
.toggle input:checked+.toggle-track{background:var(--grad);border-color:transparent}
.toggle-thumb{position:absolute;top:3px;left:3px;width:16px;height:16px;border-radius:50%;background:#fff;transition:transform .2s;pointer-events:none}
.toggle input:checked~.toggle-thumb{transform:translateX(18px)}
.modal-btns{display:flex;gap:10px;justify-content:flex-end;margin-top:24px}
.m-cancel{font-size:14px;background:transparent;color:var(--text3);border:.5px solid var(--border2);border-radius:8px;padding:10px 18px;cursor:pointer}
.m-save{font-size:14px;background:var(--grad);color:#fff;border:none;border-radius:8px;padding:10px 20px;cursor:pointer;font-weight:600}

/* RESPONSIVE */
@media(max-width:640px){
  :root{--pad:22px}
  .nav-links,.lang-toggle{display:none}
  .nav-hamburger{display:flex}
  .hero{flex-direction:column-reverse;align-items:center;padding:40px var(--pad) 32px;gap:28px;text-align:center}
  .hero::before{display:none}
  .avatar-ring{width:130px;height:130px}
  .hero-name{font-size:36px}
  .hero-btns{justify-content:center}
  .about-hero{flex-direction:column;align-items:center;text-align:center}
  .about-badges{justify-content:center}
  .form-row,.contact-grid,.cert-grid,.btn-equal-grid,.btn-window-grid,.two-col{grid-template-columns:1fr}
  .stiles{grid-template-columns:1fr 1fr}
  .cgrid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}
  .tile-grid{grid-template-columns:repeat(auto-fill,minmax(130px,1fr))}
  .chapter-content{padding:26px var(--pad)}
  .color-grid{grid-template-columns:repeat(3,1fr)}
  .video-wrap{width:100%}
}
@media(min-width:641px) and (max-width:960px){
  :root{--pad:36px}
  .hero{padding:64px var(--pad) 48px;gap:48px}
  .hero-name{font-size:42px}
  .stiles{grid-template-columns:repeat(3,1fr)}
  .cert-grid{grid-template-columns:1fr}
  .two-col{grid-template-columns:1fr}
  .video-wrap{width:70%}
}
@media(min-width:1400px){
  :root{--pad:72px}
  .stiles{grid-template-columns:repeat(5,1fr)}
}

/* CHAPTER TILES — redesigned */
.cgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(175px,1fr));gap:14px}
@media(min-width:1280px){.cgrid{grid-template-columns:repeat(5,1fr)}}
@media(min-width:960px) and (max-width:1279px){.cgrid{grid-template-columns:repeat(4,1fr)}}
@media(min-width:640px) and (max-width:959px){.cgrid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:639px){.cgrid{grid-template-columns:repeat(2,1fr)}}
.chapter-item{background:rgba(93,202,165,.05);border:.5px solid rgba(93,202,165,.2);border-radius:var(--r-lg);padding:22px 20px 18px;display:flex;flex-direction:column;align-items:flex-start;gap:6px;text-decoration:none;transition:all .18s;position:relative;min-height:105px;overflow:hidden}
.chapter-item::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(93,202,165,.5),transparent)}
.chapter-item:not(.locked):hover{border-color:var(--green-bd);background:rgba(93,202,165,.12);transform:translateY(-2px)}
.chapter-item.exercise{background:rgba(55,138,221,.05);border-color:rgba(55,138,221,.2)}
.chapter-item.exercise::before{background:linear-gradient(90deg,transparent,rgba(55,138,221,.5),transparent)}
.chapter-item.exercise:not(.locked):hover{border-color:var(--blue-bd);background:rgba(55,138,221,.12)}
.ch-num{font-size:22px;font-weight:700;color:var(--green);line-height:1}
.chapter-item.exercise .ch-num{color:var(--blue-lt)}
.ch-label{font-size:13px;color:var(--text3);line-height:1.4;font-weight:400}
.chapter-item.locked{opacity:.32;cursor:not-allowed;pointer-events:none;background:rgba(255,255,255,.015);border-color:rgba(255,255,255,.05)}
.chapter-item.locked::before{display:none}
.chapter-item.locked .ch-num{color:var(--text4)}
.chapter-item.locked .ch-label{color:var(--text4)}
.lock-badge{position:absolute;top:9px;right:9px;width:19px;height:19px;border-radius:50%;background:rgba(200,40,40,.9);display:flex;align-items:center;justify-content:center;font-size:9px;color:#fff;font-weight:700;line-height:1}

/* CERT CARDS redesigned */
.cert-grid-new{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px;margin-bottom:20px}
.cert-card-new{background:rgba(255,255,255,.03);border:.5px solid rgba(255,255,255,.09);border-radius:var(--r-lg);overflow:hidden;cursor:pointer;transition:all .2s;position:relative}
.cert-card-new::before{content:'';position:absolute;top:0;left:0;right:0;height:1.5px;opacity:0;transition:opacity .2s}
.cert-card-new:hover{transform:translateY(-4px);border-color:var(--green-bd)}
.cert-card-new:hover::before{opacity:1}
.ccn-green::before{background:linear-gradient(90deg,transparent,var(--green),transparent)}
.ccn-blue::before{background:linear-gradient(90deg,transparent,var(--blue),transparent)}
.ccn-amber::before{background:linear-gradient(90deg,transparent,#EF9F27,transparent)}
.cert-preview{width:100%;height:140px;overflow:hidden;position:relative;background:var(--bg3)}
.cert-preview img{width:100%;height:100%;object-fit:cover;object-position:top;transition:transform .3s;display:block}
.cert-card-new:hover .cert-preview img{transform:scale(1.04)}
.cert-preview-overlay{position:absolute;inset:0;background:linear-gradient(to bottom,transparent 50%,rgba(11,13,20,.85));display:flex;align-items:flex-end;justify-content:flex-end;padding:10px}
.cert-preview-icon{width:32px;height:32px;border-radius:8px;background:rgba(93,202,165,.2);border:.5px solid rgba(93,202,165,.4);display:flex;align-items:center;justify-content:center;font-size:15px;color:var(--green)}
.cert-body{padding:18px 20px 20px}
.cert-badge-row{display:flex;align-items:center;gap:8px;margin-bottom:10px}
.cert-badge{font-size:11px;padding:3px 10px;border-radius:20px;font-weight:600;letter-spacing:.04em}
.cb-green{background:var(--green-dim);border:.5px solid var(--green-bd);color:var(--green)}
.cb-blue{background:var(--blue-dim);border:.5px solid var(--blue-bd);color:var(--blue-lt)}
.cb-amber{background:var(--amber-dim);border:.5px solid var(--amber-bd);color:var(--amber)}
.cert-full-name{font-size:17px;font-weight:600;color:#E8EAF0;margin-bottom:5px;line-height:1.35}
.cert-short-desc{font-size:14px;color:var(--text3);line-height:1.5}
.cert-open-hint{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--text4);margin-top:12px;transition:color .15s}
.cert-card-new:hover .cert-open-hint{color:var(--green)}

/* VIDEO — inline player */
.video-player-wrap{width:55%;min-width:300px;border-radius:var(--r-lg);overflow:hidden;background:#000;border:.5px solid var(--border);position:relative}
.video-player-wrap iframe{display:block;width:100%;aspect-ratio:16/9;border:none}
.video-thumb-overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,.4);cursor:pointer;transition:background .2s}
.video-thumb-overlay:hover{background:rgba(0,0,0,.2)}
.play-btn-big{width:72px;height:72px;border-radius:50%;background:rgba(93,202,165,.9);display:flex;align-items:center;justify-content:center;font-size:28px;color:#fff;transition:transform .2s,background .2s}
.video-thumb-overlay:hover .play-btn-big{transform:scale(1.08);background:var(--green)}

/* ── BRUTAL RESPONSIVE FIXES ── */
@media(max-width:480px){
  :root{--pad:16px;--r-lg:14px;--r-md:10px}
  .hero-name{font-size:30px!important}
  .hero-sub{font-size:16px!important}
  .btn-primary,.btn-ghost{font-size:15px!important;padding:12px 20px!important}
  .page-title{font-size:28px!important}
  .page-sub{font-size:16px!important}
  .about-name{font-size:24px!important}
  .about-body p{font-size:17px!important}
  .tcard-name{font-size:20px!important}
  .tcard-desc{font-size:15px!important}
  .ex-title{font-size:17px!important}
  .tile{min-height:90px!important;padding:20px 12px!important;font-size:15px!important}
  .tile-grid{grid-template-columns:repeat(auto-fill,minmax(100px,1fr))!important}
  .cgrid{grid-template-columns:repeat(2,1fr)!important}
  .ch-num{font-size:16px!important}
  .ch-label{font-size:12px!important}
  .color-grid{grid-template-columns:repeat(3,1fr)!important}
  .cert-grid-new{grid-template-columns:1fr!important}
  .form-row2,.form-row{grid-template-columns:1fr!important}
  .chc-top{flex-direction:column!important;gap:14px!important}
  .cities-row{flex-wrap:wrap!important}
  .nav{padding:14px var(--pad)!important}
  .nav-logo{font-size:17px!important}
  .footer-top,.footer-bot{flex-direction:column!important;gap:10px!important}
  .two-col{grid-template-columns:1fr!important}
  #columns{flex-direction:column!important}
  .dnd-area{flex-direction:column!important;align-items:stretch!important}
  .dnd-arrow{transform:rotate(90deg);text-align:center}
  #draggable,#droppable{width:100%!important;min-width:unset!important}
  .video-thumb-card{width:100%!important;min-width:unset!important}
  .video-player-wrap{width:100%!important}
  .stiles{grid-template-columns:1fr!important}
  .bmi-result-wrap{grid-template-columns:1fr!important}
  .timer-wrap input[type=number]{font-size:18px!important;width:90px!important}
  .exercise-block{padding:22px 16px!important}
  .chapter-content{padding:24px var(--pad)!important}
}

@media(max-width:360px){
  :root{--pad:12px}
  .hero-name{font-size:26px!important}
  .cgrid{grid-template-columns:1fr 1fr!important}
}

/* Wider screens */
@media(min-width:1600px){
  :root{--pad:80px}
  .hero-name{font-size:64px}
  .tgrid{grid-template-columns:repeat(2,1fr)}
}

/* Print */
@media print{
  .nav,.footer,.cookie-banner,.lang-toggle,.nav-hamburger{display:none!important}
  body{background:#fff!important;color:#000!important}
}

/* Focus visible for accessibility */
a:focus-visible,button:focus-visible,input:focus-visible,[tabindex]:focus-visible{
  outline:2px solid var(--green);outline-offset:2px;border-radius:4px
}

/* Smooth image loading */
img{transition:opacity .3s ease}
img[loading="lazy"]{opacity:0}
img[loading="lazy"].loaded{opacity:1}

/* ══════════════════════════════════════════════
   PERFECT RESPONSIVE — all breakpoints
   ══════════════════════════════════════════════ */





/* ── HOME BUTTONS — dark blue highlight ── */
.hero-btns .btn-ghost{
  background:rgba(24,64,120,.35);
  border-color:rgba(55,138,221,.45);
  color:#85B7EB;
}
.hero-btns .btn-ghost:hover{
  background:rgba(24,64,120,.55);
  border-color:rgba(55,138,221,.7);
  color:#e8eaf0;
}

/* ── COPYRIGHT in footer ── */
.footer-copy{font-size:14px;color:rgba(232,234,240,.28)}
.footer-mail a{font-size:13px;color:rgba(93,202,165,.55);text-decoration:none;transition:color .15s}
.footer-mail a:hover{color:var(--green)}

/* ── SEO: better heading hierarchy visibility ── */
h1{font-size:2.2rem;line-height:1.15}
h2{font-size:1.5rem;line-height:1.3}
h3{font-size:1.2rem;line-height:1.4}

/* ── ÁSZF page ── */
.aszf-content{padding:40px var(--pad) 60px;max-width:860px}
.aszf-content h2{font-size:20px;font-weight:700;color:#E8EAF0;margin:32px 0 12px;padding-top:16px;border-top:.5px solid rgba(255,255,255,.07)}
.aszf-content p,.aszf-content li{font-size:16px;color:rgba(232,234,240,.7);line-height:1.8;margin-bottom:10px}
.aszf-content ul{padding-left:24px;margin-bottom:14px}
.aszf-date{font-size:13px;color:rgba(232,234,240,.3);margin-top:40px;padding-top:20px;border-top:.5px solid rgba(255,255,255,.07)}

/* NAV BACK BUTTON */
.nav-back-btn{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:500;
  color:rgba(232,234,240,.45);
  padding:6px 12px;border-radius:8px;
  border:.5px solid rgba(255,255,255,.08);
  background:rgba(255,255,255,.04);
  text-decoration:none;
  transition:all .15s;
  white-space:nowrap;
  flex-shrink:0;
}
.nav-back-btn:hover{
  color:var(--green);
  border-color:rgba(93,202,165,.35);
  background:rgba(93,202,165,.07);
}
.nav-back-btn i{font-size:14px}
/* Insert back btn between logo and nav-links */
.nav{gap:12px}

.footer-link{font-size:14px;color:rgba(232,234,240,.45);text-decoration:none;transition:color .15s;font-weight:500}
.footer-link:hover{color:var(--green)}

/* Space for fixed cookie banner */
body.cookie-visible{padding-bottom:80px}


.chapter-content p,
.chapter-content li,
.chapter-content label,
.chapter-content .fw label,
.chapter-content .fld-label,
.chapter-content .hint-txt,
.chapter-content .ex-desc,
.chapter-content code{
  font-size:calc(1em * 1.15);
}
.chapter-content .ex-title{
  font-size:calc(1em * 1.12);
}
.chapter-content input[type=text],
.chapter-content input[type=number],
.chapter-content input[type=button],
.chapter-content input[type=email],
.chapter-content select,
.chapter-content textarea{
  font-size:calc(1em * 1.15)!important;
  padding:11px 15px!important;
}
.chapter-content input[type=button],
.chapter-content .ex-btn{
  padding:13px 26px!important;
  font-size:calc(1em * 1.15)!important;
}
.chapter-content .listbox-item{
  font-size:17px!important;
  padding:13px 18px!important;
}
.chapter-content table.t td,
.chapter-content table td{font-size:15px}
.chapter-content table.t th,
.chapter-content table th{font-size:12px}
.chapter-content .ex-tag{font-size:12px}
.chapter-content .tip-box .tip-text{font-size:14px}
/* BMI specific */
.chapter-content #bmi,
.chapter-content #bmi_category{font-size:18px!important}


/* Table cells bigger */
.chapter-content table td{font-size:16px}
.chapter-content table th{font-size:13px}
/* Listbox bigger */
.listbox-item{font-size:18px!important;padding:14px 18px!important}
/* DnD bigger */
.dnd-item{font-size:16px!important;padding:14px 18px!important}

/* ══ DEFINITIVE CHAPTER SIZES — BMI reference ══ */
.chapter-content > .exercise-block p,
.chapter-content > div p{font-size:18px;line-height:1.75}
.chapter-content .fw label,
.chapter-content label.fw-label{font-size:16px!important}
.chapter-content .finput,
.chapter-content .fw input[type="text"],
.chapter-content .fw input[type="number"],
.chapter-content .fw input[type="email"],
.chapter-content .fw textarea{
  font-size:17px!important;
  padding:14px 18px!important;
  min-height:50px;
}
.chapter-content .fw select,
.chapter-content select.fsel{
  font-size:17px!important;
  padding:14px 44px 14px 18px!important;
  min-height:50px;
}
.chapter-content .ex-btn,
.chapter-content input[type="button"].ex-btn{
  font-size:17px!important;
  padding:13px 26px!important;
  min-height:50px!important;
}
.chapter-content .hint-txt{font-size:16px!important}
.chapter-content .ex-title{font-size:22px!important}
.chapter-content .id-badge-ch{font-size:13px!important;padding:4px 12px!important}
.chapter-content .listbox-item{font-size:18px!important;padding:14px 18px!important}
.chapter-content table td{font-size:16px!important}
.chapter-content .fw{margin-bottom:20px}

/* ══ LANGUAGE TRANSITION — entire page fades ══ */
body.lang-fading  { opacity: 0 !important; transition: opacity 0.45s ease !important; animation: none !important; }
body.lang-fadein  { opacity: 1 !important; transition: opacity 0.5s ease !important; animation: none !important; }


body.page-leaving {
  opacity: 0 !important;
  transition: opacity 0.45s ease !important;
  animation: none !important;
}
body.page-entering {
  opacity: 1 !important;
  transition: opacity 0.5s ease !important;
  animation: none !important;
}

/* ══ PAGE TRANSITION — pure opacity, identical to lang fade ══ */
body.page-leaving {
  opacity: 0 !important;
  transition: opacity 0.45s ease !important;
  animation: none !important;
}

/* ═══════════════════════════════════════════
   COMPREHENSIVE RESPONSIVE — all breakpoints
   ═══════════════════════════════════════════ */

/* Base: ensure nothing overflows */
*, *::before, *::after { box-sizing: border-box; }
img, video, canvas, iframe { max-width: 100%; }
table { width: 100%; }

/* ── DESKTOP LARGE (1280px+) ── */
@media(min-width:1280px){
  :root{--pad:72px}
}

/* ── TABLET LANDSCAPE (961–1279px) ── */
@media(min-width:961px) and (max-width:1279px){
  :root{--pad:40px}
  .cgrid{grid-template-columns:repeat(4,1fr)!important}
  .cert-grid-new{grid-template-columns:repeat(2,1fr)!important}
  .stat-grid{grid-template-columns:repeat(4,1fr)!important}
  .stiles{grid-template-columns:repeat(3,1fr)!important}
}

/* ── TABLET PORTRAIT (641–960px) ── */
@media(min-width:641px) and (max-width:960px){
  :root{--pad:32px}
  .hero{flex-direction:column-reverse;align-items:center;text-align:center;padding:48px var(--pad) 32px;gap:28px}
  .avatar-ring{width:150px;height:150px}
  .hero-name{font-size:38px}
  .hero-btns{justify-content:center}
  .hero-eyebrow::before{display:none}
  .about-hero{flex-direction:column;align-items:center;text-align:center}
  .about-badges{justify-content:center}
  .cert-grid-new{grid-template-columns:repeat(2,1fr)!important}
  .cgrid{grid-template-columns:repeat(3,1fr)!important}
  .stiles{grid-template-columns:repeat(3,1fr)!important}
  .form-row,.form-row2{grid-template-columns:1fr!important}
  .two-col{grid-template-columns:1fr!important}
  .video-thumb-card{width:85%}
  .chc-top{gap:16px}
  .stat-grid{grid-template-columns:repeat(2,1fr)!important}
  /* ch18 EMS */
  .ems-body{grid-template-columns:180px 1fr!important}
  .ems-brand{min-width:160px!important;width:160px!important}
  .ems-sidebar,.ems-side{width:180px!important}
}

/* ── MOBILE LARGE (≤640px) ── */
@media(max-width:640px){
  :root{--pad:18px}
  body{font-size:15px}

  /* NAV */
  .nav{padding:14px var(--pad)}
  .nav-links{display:none}
  .lang-toggle{display:none}
  .nav-hamburger{display:flex}
  .nav-back-btn{font-size:12px;padding:5px 10px}

  /* HERO */
  .hero{flex-direction:column-reverse;align-items:center;text-align:center;padding:32px var(--pad) 24px;gap:20px;overflow:hidden}
  .hero::before{display:none}
  .avatar-ring{width:110px;height:110px}
  .hero-name{font-size:30px;letter-spacing:-.02em}
  .hero-sub{font-size:16px}
  .hero-btns{justify-content:center;flex-direction:column;gap:10px;width:100%}
  .btn-primary,.btn-ghost{width:100%;text-align:center;justify-content:center}
  .hero-eyebrow::before{display:none}
  .badges-row{padding:0 var(--pad) 28px;gap:8px}
  .badge{font-size:13px;padding:5px 12px}

  /* PAGE HERO */
  .page-title{font-size:24px}
  .page-sub{font-size:15px}
  .page-hero{padding:24px var(--pad) 18px}

  /* ABOUT */
  .about-hero{flex-direction:column;align-items:center;text-align:center;padding:28px var(--pad) 0;gap:16px;margin-bottom:20px}
  .about-avatar{width:90px;height:90px}
  .about-name{font-size:22px}
  .about-badges{justify-content:center}
  .about-body{padding:0 var(--pad);margin-bottom:24px}
  .about-body p{font-size:16px;line-height:1.75}
  .video-thumb-card{width:100%!important;min-width:unset!important}
  .cert-grid-new{grid-template-columns:1fr!important}
  .cert-section{padding:0 var(--pad) 24px}

  /* CONTACT */
  .contact-section{padding:0 var(--pad)}
  .chc-top{flex-direction:column;gap:14px}
  .chc-contacts{padding:16px 18px}
  .chc-social{padding:12px 18px;gap:10px}
  .form-card{padding:20px var(--pad)}
  .form-row,.form-row2{grid-template-columns:1fr!important}

  /* SELENIUM */
  .cgrid{grid-template-columns:repeat(2,1fr)!important;gap:8px}
  .chapter-item{padding:14px 12px;min-height:80px}
  .ch-num{font-size:13px}
  .ch-label{font-size:11px}
  .stiles{grid-template-columns:1fr 1fr!important}
  .stile{padding:20px 16px}
  .tcard{padding:20px 18px}
  .tcard-name{font-size:19px}
  .tgrid{grid-template-columns:1fr!important;padding:0 var(--pad) 12px}

  /* CHAPTER CONTENT */
  .chapter-content{padding:18px var(--pad)}
  .exercise-block{padding:18px 16px;margin-bottom:16px}
  .ex-title{font-size:17px;gap:8px;flex-wrap:wrap}
  .ex-tag{font-size:11px}
  .two-col{grid-template-columns:1fr!important}
  .btn-equal-grid{grid-template-columns:1fr!important;max-width:100%}
  .btn-window-grid{grid-template-columns:1fr!important}
  .fw select,.fw input[type=text],.fw input[type=number],.fw textarea,.finput{min-width:100%!important;width:100%!important}
  .field-row{flex-direction:column}

  /* DND */
  #columns{flex-direction:column!important}
  .dnd-area{flex-direction:column!important;align-items:stretch!important}
  #draggable,#droppable{width:100%!important;min-width:unset!important}

  /* TABLES */
  .tbl-wrap{border-radius:var(--r-sm);overflow-x:auto}
  table thead th,table tbody td{padding:8px 10px;font-size:13px}

  /* BMI */
  .bmi-result-wrap{grid-template-columns:1fr!important}

  /* IFRAME ch13 */
  [id^="wrap-"] iframe{height:240px!important}

  /* FOOTER */
  .footer{padding:20px var(--pad)}
  .footer-top{flex-direction:column;gap:10px}
  .footer-bot{flex-direction:column;gap:8px;align-items:flex-start}
  .socials{gap:8px}
  .social-btn{width:36px;height:36px;font-size:16px}

  /* COOKIE */
  .cookie-banner{padding:14px var(--pad);gap:12px;flex-direction:column;align-items:flex-start}
  .cookie-btns{width:100%;justify-content:stretch;display:flex}
  .c-reject,.c-settings,.c-accept{flex:1;text-align:center;font-size:13px}

  /* ── ch18 EMPLOYEE MANAGEMENT SYSTEM ── */
  .ems-body{grid-template-columns:1fr!important;grid-template-rows:auto 1fr}
  .ems-side,.ems-sidebar{display:none!important}
  .ems-bar{padding:0 12px;height:48px}
  .ems-brand{min-width:140px!important;width:140px!important}
  .ems-search{max-width:160px!important;font-size:12px}
  .ems-bar-right{gap:6px}
  .ems-header{padding:12px 16px 10px;flex-direction:column;gap:8px}
  .ems-htitle{font-size:17px!important}
  .ems-body-inner{padding:14px 16px!important}
  .stat-grid{grid-template-columns:repeat(2,1fr)!important;gap:10px!important;margin-bottom:14px!important}
  .stat-val{font-size:22px!important}
  .form-grid2{grid-template-columns:1fr!important}
  .upload-grid,.two-col-upload{grid-template-columns:1fr!important}
  .step-nav{gap:4px}
  .step{font-size:11px;gap:5px}
  .step-n{width:20px;height:20px;font-size:10px}
  .step-ln{width:16px}
  .login-card{padding:28px 20px!important}
  .login-title{font-size:19px!important}
  .fld-input{font-size:15px!important;padding:11px 13px!important}
  .login-submit{font-size:14px!important;padding:12px!important}
  .tbl-top{flex-direction:column;gap:8px}
  .tbl-search input{width:140px!important}
  .tt td,.tt th{padding:9px 10px;font-size:12px}
  .btn{padding:8px 14px!important;font-size:13px!important}
  /* On mobile: add hamburger for sidebar */
  .ems-menu-btn{display:flex!important}
}

/* ── MOBILE SMALL (≤400px) ── */
@media(max-width:400px){
  :root{--pad:12px}
  .hero-name{font-size:26px}
  .cgrid{grid-template-columns:repeat(2,1fr)!important}
  .page-title{font-size:21px}
  .stiles{grid-template-columns:1fr!important}
  .stat-grid{grid-template-columns:1fr 1fr!important}
  .chapter-item{min-height:72px;padding:12px 10px}
  .ch-num{font-size:12px}
  .ems-htitle{font-size:15px!important}
  .login-card{padding:22px 16px!important}
}