:root{color-scheme:dark;--bg:#080a12;--panel:#111626;--panel2:#171d31;--text:#f7f6ff;--muted:#a9aec2;--line:rgba(255,255,255,.1);--purple:#835cff;--purple2:#b38aff;--mint:#76e6bf;--amber:#ffbd66;--red:#ff7089;--radius:22px;--shadow:0 28px 90px rgba(0,0,0,.32)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scrollbar-width:none}html::-webkit-scrollbar{display:none}body{margin:0;min-width:320px;background:radial-gradient(circle at 15% 2%,rgba(131,92,255,.18),transparent 28rem),radial-gradient(circle at 92% 30%,rgba(83,128,255,.12),transparent 30rem),var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.55;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}button{color:inherit}img{display:block;max-width:100%}.hidden{display:none!important}.container{width:min(1160px,calc(100% - 32px));margin-inline:auto}.brand{display:flex;align-items:center;gap:11px;font-weight:850;letter-spacing:-.03em}.brand img{width:44px;height:44px}.brand span,.brand small{display:block}.brand small{color:var(--muted);font-size:.64rem;letter-spacing:.13em}.btn{min-height:44px;display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid var(--line);border-radius:13px;background:rgba(255,255,255,.04);padding:0 15px;color:var(--text);font-weight:760;cursor:pointer;transition:.18s}.btn:hover{transform:translateY(-1px);border-color:rgba(255,255,255,.22)}.btn.primary{border-color:transparent;background:linear-gradient(135deg,var(--purple),var(--purple2));box-shadow:0 13px 32px rgba(131,92,255,.2)}.btn.ghost{background:transparent}.btn.danger{border-color:transparent;background:#a52f4c}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.eyebrow{margin:0 0 8px;color:var(--mint);font-size:.7rem;font-weight:850;letter-spacing:.15em;text-transform:uppercase}.muted{color:var(--muted)}.message{min-height:22px;margin:9px 0 0;color:var(--muted);font-size:.82rem}.message.error{color:var(--red)}.message.success{color:var(--mint)}input,textarea,select{width:100%;border:1px solid var(--line);border-radius:13px;outline:none;background:#0b0f1b;color:var(--text);padding:12px 13px}input:focus,textarea:focus,select:focus{border-color:var(--purple);box-shadow:0 0 0 4px rgba(131,92,255,.12)}label{display:grid;gap:7px;color:#dbddea;font-size:.8rem;font-weight:720}textarea{min-height:130px;resize:vertical}.card{border:1px solid var(--line);border-radius:var(--radius);background:rgba(17,22,38,.78);box-shadow:0 16px 50px rgba(0,0,0,.14)}
.presentation-header{position:sticky;top:0;z-index:30;border-bottom:1px solid var(--line);background:rgba(8,10,18,.8);backdrop-filter:blur(18px)}.presentation-header .container{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}.presentation-nav{display:flex;align-items:center;gap:22px;color:var(--muted);font-size:.84rem;font-weight:700}.presentation-hero{padding:100px 0 78px}.presentation-grid{display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:70px}.presentation-hero h1{margin:0;font-size:clamp(3.4rem,8vw,7.2rem);letter-spacing:-.075em;line-height:.9}.presentation-hero h1 span{display:block;background:linear-gradient(100deg,#fff,#bda8ff);color:transparent;background-clip:text}.presentation-hero .lead{max-width:640px;margin:27px 0 0;color:var(--muted);font-size:1.15rem}.hero-actions{display:flex;gap:11px;flex-wrap:wrap;margin-top:30px}.certificate-visual{position:relative;min-height:480px;padding:30px;border:1px solid var(--line);border-radius:32px;background:linear-gradient(145deg,rgba(131,92,255,.16),rgba(255,255,255,.02));box-shadow:var(--shadow);overflow:hidden}.certificate-sheet{position:absolute;inset:70px 42px 52px;display:flex;flex-direction:column;padding:34px;border:1px solid rgba(255,255,255,.17);border-radius:20px;background:#f4f1ff;color:#1d1732;transform:rotate(3deg);box-shadow:0 24px 60px rgba(0,0,0,.35)}.certificate-sheet img{width:58px}.certificate-sheet h2{margin:45px 0 5px;font-size:2rem;letter-spacing:-.05em}.certificate-sheet p{margin:0;color:#716989}.certificate-sheet .certificate-line{height:1px;margin-top:auto;background:#b7add2}.floating-chip{position:absolute;display:flex;align-items:center;gap:8px;padding:10px 13px;border:1px solid var(--line);border-radius:13px;background:#121829;font-size:.72rem;font-weight:800;box-shadow:var(--shadow)}.floating-chip.one{left:14px;top:38px}.floating-chip.two{right:12px;bottom:26px}.floating-chip i{width:8px;height:8px;border-radius:50%;background:var(--mint)}.feature-section{padding:88px 0}.section-heading{display:grid;grid-template-columns:1fr .7fr;align-items:end;gap:50px;margin-bottom:34px}.section-heading h2{margin:0;font-size:clamp(2.2rem,5vw,4.5rem);letter-spacing:-.06em;line-height:1}.section-heading>p{margin:0;color:var(--muted)}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.feature-card{min-height:270px;padding:25px}.feature-mark{width:46px;height:46px;display:grid;place-items:center;border-radius:14px;background:rgba(131,92,255,.14);color:#c1adff;font-size:.7rem;font-weight:900}.feature-card h3{margin:42px 0 8px;font-size:1.45rem;letter-spacing:-.04em}.feature-card p{margin:0;color:var(--muted)}.presentation-cta{margin:70px auto 90px;padding:46px;text-align:center}.presentation-cta h2{max-width:760px;margin:0 auto;font-size:clamp(2.2rem,5vw,4.3rem);letter-spacing:-.06em;line-height:1}.presentation-cta p{color:var(--muted)}.presentation-cta .btn{margin-top:16px}.presentation-footer{padding:28px 0;border-top:1px solid var(--line);color:var(--muted);font-size:.76rem}
.auth-screen{min-height:100vh;display:grid;place-items:center;padding:24px}.auth-layout{width:min(980px,100%);display:grid;grid-template-columns:1.05fr .95fr;overflow:hidden}.auth-story{padding:48px;background:linear-gradient(145deg,rgba(131,92,255,.2),rgba(83,128,255,.06))}.auth-story h1{margin:70px 0 15px;font-size:clamp(2.7rem,6vw,5rem);letter-spacing:-.07em;line-height:.93}.auth-story p{max-width:420px;color:var(--muted)}.auth-points{display:grid;gap:12px;margin-top:45px}.auth-points div{display:grid;grid-template-columns:9px 1fr;align-items:center;gap:10px;color:#dcd9eb;font-size:.82rem}.auth-points i{width:8px;height:8px;border-radius:50%;background:var(--mint)}.auth-panel{padding:42px;background:#111626}.auth-tabs{display:grid;grid-template-columns:1fr 1fr;gap:7px;margin:36px 0 25px;padding:5px;border:1px solid var(--line);border-radius:14px}.auth-tab{min-height:39px;border:0;border-radius:10px;background:transparent;color:var(--muted);font-weight:760;cursor:pointer}.auth-tab.active{background:rgba(131,92,255,.16);color:#fff}.auth-form{display:none;gap:11px}.auth-form.active{display:grid}.auth-form label:not(:first-child){margin-top:5px}.auth-form .btn{margin-top:10px}
.app-shell{min-height:100vh}.app-header{position:sticky;top:0;z-index:30;border-bottom:1px solid var(--line);background:rgba(8,10,18,.82);backdrop-filter:blur(18px)}.app-header .container{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:16px}.app-header-actions{display:flex;align-items:center;gap:9px}.user-chip{padding:8px 11px;border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.03)}.user-chip b,.user-chip small{display:block}.user-chip small{color:var(--muted);font-size:.64rem}.app-main{padding:38px 0 70px}.app-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:20px}.app-heading h1{margin:0;font-size:clamp(2.2rem,5vw,4rem);letter-spacing:-.06em}.offline-banner{margin:16px 0;padding:11px 14px;border:1px solid rgba(255,189,102,.25);border-radius:13px;background:rgba(255,189,102,.08);color:var(--amber);font-size:.78rem}.stats{display:grid;grid-template-columns:repeat(5,1fr);gap:11px;margin:24px 0}.stat{padding:17px}.stat b,.stat span{display:block}.stat b{font-size:1.7rem;letter-spacing:-.04em}.stat span{color:var(--muted);font-size:.68rem}.filters{display:grid;grid-template-columns:1fr 190px;gap:10px;margin-bottom:17px}.course-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.course-card{min-height:320px;display:flex;flex-direction:column;padding:22px}.course-top{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}.course-status{padding:5px 9px;border-radius:99px;background:rgba(131,92,255,.13);color:#c8b8ff;font-size:.63rem;font-weight:850;text-transform:uppercase}.course-status.completed{background:rgba(118,230,191,.12);color:var(--mint)}.course-card h2{margin:28px 0 5px;font-size:1.4rem;letter-spacing:-.04em}.course-card .provider{margin:0;color:var(--muted);font-size:.8rem}.course-meta{display:flex;gap:13px;flex-wrap:wrap;margin:17px 0;color:#d9dceb;font-size:.7rem}.certificate-box{margin-top:auto;padding:12px;border:1px solid var(--line);border-radius:13px;background:#0d1220}.certificate-box b,.certificate-box small{display:block}.certificate-box small{color:var(--muted);font-size:.65rem}.course-actions{display:flex;gap:7px;flex-wrap:wrap;margin-top:13px}.course-actions .btn{min-height:36px;padding:0 10px;font-size:.68rem}.empty-state{grid-column:1/-1;padding:70px 20px;text-align:center}.empty-state h2{margin:0}.empty-state p{color:var(--muted)}dialog{width:min(720px,calc(100vw - 24px));max-height:calc(100vh - 30px);overflow:auto;border:1px solid var(--line);border-radius:24px;background:#121728;color:var(--text);padding:22px;box-shadow:var(--shadow)}dialog::backdrop{background:rgba(2,3,9,.76);backdrop-filter:blur(5px)}.dialog-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}.dialog-head h2{margin:0}.dialog-form{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:18px}.dialog-form .full,.dialog-actions,.dialog-form>.message{grid-column:1/-1}.dialog-actions{display:flex;justify-content:flex-end;gap:9px}.share-link{display:block;margin:16px 0;padding:12px;border:1px solid var(--line);border-radius:12px;background:#0b0f1b;color:#cabdff;font:12px ui-monospace,SFMono-Regular,Consolas,monospace;word-break:break-all}.share-actions{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.toast{position:fixed;right:18px;bottom:18px;z-index:100;max-width:350px;padding:12px 15px;border:1px solid var(--line);border-radius:12px;background:#1a2034;box-shadow:var(--shadow);opacity:0;transform:translateY(10px);pointer-events:none;transition:.2s}.toast.show{opacity:1;transform:none}:focus-visible{outline:3px solid rgba(118,230,191,.6);outline-offset:2px}
@media(max-width:900px){.presentation-grid,.section-heading,.auth-layout{grid-template-columns:1fr}.presentation-grid{gap:40px}.feature-grid,.course-grid{grid-template-columns:repeat(2,1fr)}.auth-story{display:none}.stats{grid-template-columns:repeat(3,1fr)}}
@media(max-width:620px){.presentation-nav a:not(.btn){display:none}.presentation-hero{padding-top:65px}.certificate-visual{min-height:390px}.certificate-sheet{inset:65px 24px 45px;padding:26px}.feature-grid,.course-grid{grid-template-columns:1fr}.presentation-cta{padding:34px 20px}.app-header .brand small,.user-chip{display:none}.app-heading{align-items:stretch;flex-direction:column}.stats{grid-template-columns:1fr 1fr}.filters{grid-template-columns:1fr}.dialog-form{grid-template-columns:1fr}.dialog-form .full,.dialog-actions,.dialog-form>.message{grid-column:1}.share-actions{grid-template-columns:1fr}.auth-panel{padding:30px 20px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition-duration:.01ms!important}}