:root{--bg:#050505;--surface:#101010;--surface-2:#171717;--line:#262626;--line-strong:#3a3a3a;--text:#fafafa;--muted:#a3a3a3;--faint:#737373;--white:#fff;--ok:#34d399;--bad:#f87171;--radius:16px;--serif:"DM Serif Display",Georgia,"Times New Roman",serif;--sans:"Outfit",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}*{box-sizing:border-box}body,html{margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:var(--sans);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}a{color:inherit}img,svg{display:block}button{font:inherit}.container{width:100%;max-width:1120px;margin:0 auto;padding:0 20px}.narrow{max-width:760px}h1,h2,h3{font-family:var(--serif);font-weight:400;line-height:1.1;margin:0;letter-spacing:-.01em}h1{font-size:clamp(2.4rem,6vw,4.4rem)}h2{font-size:clamp(1.8rem,4vw,2.6rem)}h3{font-size:1.35rem}p{margin:0}.muted{color:var(--muted)}.faint{color:var(--faint)}.eyebrow{font-size:.78rem;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}.site-header{position:-webkit-sticky;position:sticky;top:0;z-index:20;background:rgba(5,5,5,.86);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}.site-header .container{justify-content:space-between;height:64px;gap:12px}.brand,.site-header .container{display:flex;align-items:center}.brand{gap:10px;text-decoration:none}.brand-mark{width:34px;height:34px;border-radius:9px;background:var(--white);color:#000;display:grid;place-items:center;font-family:var(--serif);font-size:17px}.brand-name{font-weight:600;letter-spacing:.02em;font-size:.98rem;line-height:1.1}.brand-name small{display:block;font-weight:400;color:var(--muted);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase}.nav{display:flex;align-items:center;gap:18px}.nav a{text-decoration:none;color:var(--muted);font-size:.95rem}.nav a:hover{color:var(--text)}.nav .btn{color:#000}@media (max-width:640px){.nav .hide-sm{display:none}.nav{gap:12px}.brand-name small{display:none}}.brand-name{white-space:nowrap}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid var(--white);background:var(--white);color:#000;padding:12px 22px;border-radius:999px;font-weight:600;text-decoration:none;cursor:pointer;transition:transform .15s ease,opacity .15s ease;font-size:.98rem}.btn:hover{transform:translateY(-1px)}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.btn-ghost{background:transparent;color:var(--text);border-color:var(--line-strong)}.btn-sm{padding:8px 16px;font-size:.9rem}.btn-block{width:100%}.link{color:var(--text);text-decoration:underline;text-underline-offset:3px;background:none;border:0;padding:0;cursor:pointer}.inline-links{display:flex;gap:22px;flex-wrap:wrap;align-items:center}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px}.icon-tile{display:inline-grid;place-items:center;border-radius:12px;border:1px solid;flex:none}.notice{display:flex;gap:12px;align-items:flex-start;border:1px dashed var(--line-strong);border-radius:12px;padding:14px 16px;color:var(--muted);font-size:.9rem;background:#0b0b0b}.notice strong{color:var(--text)}.pill{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line-strong);border-radius:999px;padding:4px 12px;font-size:.8rem;color:var(--muted)}section{padding:72px 0}.hero{padding:72px 0 56px}.hero p.lead{font-size:1.15rem;color:var(--muted);max-width:620px;margin-top:18px}.hero-actions{gap:12px;margin-top:28px}.hero-actions,.hero-icons{display:flex;flex-wrap:wrap}.hero-icons{gap:10px;margin-top:36px}.grid{display:grid;grid-gap:16px;gap:16px}.grid-2{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}.grid-3{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}.module-card{display:flex;gap:14px;align-items:flex-start}.module-card h3{font-family:var(--sans);font-weight:600;font-size:1.02rem;line-height:1.35}.module-card p{color:var(--muted);font-size:.92rem;margin-top:4px}.section-head{display:flex;flex-direction:column;gap:10px;margin-bottom:28px}.steps-list{counter-reset:s;display:grid;grid-gap:14px;gap:14px}.faq details{border-bottom:1px solid var(--line);padding:16px 0}.faq summary{cursor:pointer;font-weight:600}.faq p{color:var(--muted);margin-top:8px}.site-footer{border-top:1px solid var(--line);padding:36px 0 48px;color:var(--muted);font-size:.9rem}.site-footer .container{display:grid;grid-gap:14px;gap:14px}.price-card{max-width:520px;margin:0 auto}.price{font-family:var(--serif);font-size:clamp(3rem,9vw,4.2rem);line-height:1}.price-sub{color:var(--muted);font-size:.92rem;margin-top:8px}.select{width:100%;background:var(--surface-2);color:var(--text);border:1px solid var(--line-strong);border-radius:12px;padding:12px 14px;font-size:1rem;-webkit-appearance:none;-moz-appearance:none;appearance:none}.select-wrap{position:relative}.select-wrap:after{content:"▾";position:absolute;right:14px;top:50%;transform:translateY(-50%);color:var(--muted);pointer-events:none}.check-list{list-style:none;padding:0;margin:0;display:grid;grid-gap:10px;gap:10px}.check-list li{display:flex;gap:10px;align-items:flex-start}.check-list li svg{flex:none;margin-top:3px}.field{display:grid;grid-gap:6px;gap:6px}.field label{font-size:.88rem;color:var(--muted)}.input{width:100%;background:var(--surface-2);color:var(--text);border:1px solid var(--line-strong);border-radius:12px;padding:12px 14px;font-size:1rem}.input:focus,.select:focus{outline:2px solid var(--white);outline-offset:1px}.error{color:var(--bad);font-size:.9rem}.success{color:var(--ok);font-size:.9rem}.tabs{display:flex;background:var(--surface-2);border:1px solid var(--line);border-radius:999px;padding:4px}.tabs button{flex:1 1;border:0;background:transparent;color:var(--muted);padding:8px 12px;border-radius:999px;cursor:pointer;font-weight:600}.tabs button.active{background:var(--white);color:#000}.player{min-height:calc(100vh - 64px);display:flex;flex-direction:column}.player-top{position:-webkit-sticky;position:sticky;top:64px;z-index:10;background:var(--bg);border-bottom:1px solid var(--line)}.player-top .container{padding-top:12px;padding-bottom:12px;display:grid;grid-gap:8px;gap:8px}.progress{height:6px;background:var(--surface-2);border-radius:99px;overflow:hidden}.progress>span{display:block;height:100%;background:var(--white);border-radius:99px;transition:width .4s ease}.player-meta{display:flex;justify-content:space-between;gap:10px;font-size:.85rem;color:var(--muted)}.player-body{flex:1 1;padding:36px 0 120px}.reading p{font-size:1.06rem;line-height:1.8;color:#e5e5e5;margin-top:18px}.question-title{font-family:var(--sans);font-weight:600;font-size:clamp(1.15rem,2.6vw,1.4rem);line-height:1.45;margin-top:14px}.options{display:grid;grid-gap:10px;gap:10px;margin-top:22px}.option{text-align:left;width:100%;background:var(--surface);color:var(--text);border:1px solid var(--line-strong);border-radius:14px;padding:15px 16px;cursor:pointer;display:flex;gap:12px;align-items:flex-start;font-size:1rem;line-height:1.45;transition:border-color .15s ease,background .15s ease}.option:hover:not(:disabled){border-color:var(--white)}.option .letter{flex:none;width:26px;height:26px;border-radius:8px;border:1px solid var(--line-strong);display:grid;place-items:center;font-size:.8rem;color:var(--muted)}.option.correct{border-color:var(--ok);background:rgba(52,211,153,.08)}.option.wrong{border-color:var(--bad);background:hsla(0,91%,71%,.08)}.option:disabled{cursor:default}.feedback{margin-top:18px;border-radius:14px;padding:16px;background:var(--surface-2);border:1px solid var(--line)}.feedback strong.ok{color:var(--ok)}.feedback strong.bad{color:var(--bad)}.player-bar{position:fixed;bottom:0;left:0;right:0;background:rgba(5,5,5,.94);border-top:1px solid var(--line);padding:14px 0;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.player-bar .container{display:flex;justify-content:flex-end;gap:10px}.challenge{display:inline-flex;gap:6px;align-items:center;font-size:.75rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:#fbbf24;border:1px solid #fbbf2455;background:#fbbf2412;border-radius:999px;padding:3px 10px}.module-nav{display:flex;gap:6px;overflow-x:auto;padding-bottom:2px}.module-dot{flex:none;border:1px solid var(--line-strong);background:var(--surface);color:var(--muted);border-radius:999px;padding:4px 10px;font-size:.78rem;cursor:pointer}.module-dot.done{color:var(--text);border-color:var(--faint)}.module-dot.current{background:var(--white);color:#000;border-color:var(--white)}.module-dot:disabled{cursor:default;opacity:.5}.center-screen{min-height:60vh;display:grid;place-items:center;text-align:center}.spinner{width:34px;height:34px;border:3px solid var(--line-strong);border-top-color:var(--white);border-radius:50%;animation:spin .8s linear infinite;margin:0 auto 18px}@keyframes spin{to{transform:rotate(1turn)}}.banner{border:1px solid var(--line-strong);border-radius:12px;padding:10px 14px;font-size:.88rem;color:var(--muted);display:flex;gap:12px;flex-wrap:wrap;align-items:center;justify-content:space-between}.cert-preview{background:#fffdf8;color:#111;border-radius:14px;padding:28px 24px;text-align:center;border:1px solid #c9a24b}.cert-preview .cert-name{font-family:Kalam,cursive;color:#b08433;font-size:clamp(1.8rem,5vw,2.6rem);margin:6px 0 4px}.cert-preview .cert-title{font-family:var(--serif);font-size:clamp(1.8rem,5vw,2.6rem);letter-spacing:.02em}.cert-meta{display:flex;justify-content:center;gap:28px;flex-wrap:wrap;margin-top:14px;font-size:.9rem}.cert-meta span{display:block;font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;color:#6b7280}.status{display:inline-flex;align-items:center;gap:8px;border-radius:999px;padding:6px 14px;font-weight:600;font-size:.9rem}.status.valid{background:rgba(52,211,153,.12);color:var(--ok);border:1px solid rgba(52,211,153,.4)}.status.invalid{background:hsla(0,91%,71%,.12);color:var(--bad);border:1px solid hsla(0,91%,71%,.4)}.detail-list{display:grid;grid-gap:0;gap:0;margin-top:18px}.detail-list div{display:flex;justify-content:space-between;gap:16px;padding:12px 0;border-bottom:1px solid var(--line)}.detail-list dt{color:var(--muted)}.detail-list dd{margin:0;text-align:right;font-weight:600}.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px}table{width:100%;border-collapse:collapse;font-size:.9rem}td,th{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);white-space:nowrap}th{color:var(--muted);font-weight:500;background:var(--surface)}.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));grid-gap:12px;gap:12px}.stat strong{display:block;font-family:var(--serif);font-size:2rem;font-weight:400}