:root{font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;line-height:1.5;font-weight:400;color-scheme:light}body{margin:0;min-width:320px;min-height:100vh;color:#0f172a;background:#f8fafc}#root{min-height:100vh}.app-layout{display:flex;min-height:100vh;background:linear-gradient(145deg,#f8fafc,#f1f5f9,#e2e8f0)}.app-sidebar{width:260px;min-width:260px;background:#0f172a;border-right:1px solid rgba(255,255,255,.06);display:flex;flex-direction:column;box-shadow:2px 0 12px #00000026}.app-sidebar-brand{padding:1.5rem 1.25rem;font-size:1rem;font-weight:700;color:#f8fafc;text-decoration:none;border-bottom:1px solid rgba(255,255,255,.08);line-height:1.3}.app-sidebar-brand:hover{color:#93c5fd}.app-sidebar-nav{flex:1;padding:1rem .75rem;display:flex;flex-direction:column;gap:.25rem}.app-sidebar-link{padding:.6rem 1rem;border-radius:8px;color:#94a3b8;font-size:.95rem;font-weight:500;text-decoration:none;transition:background .15s,color .15s}.app-sidebar-link:hover{background:#ffffff0f;color:#e2e8f0}.app-sidebar-link-active{background:#3b82f633;color:#93c5fd}.app-sidebar-link-active:hover{background:#3b82f640;color:#bfdbfe}.app-sidebar-footer{padding:1rem 1.25rem;border-top:1px solid rgba(255,255,255,.08);display:flex;flex-direction:column;gap:.5rem}.app-sidebar-user{font-size:.8rem;color:#64748b;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.app-sidebar-signout{padding:.5rem .75rem;background:transparent;border:1px solid rgba(255,255,255,.15);border-radius:8px;color:#94a3b8;font-size:.875rem;cursor:pointer;transition:background .15s,color .15s}.app-sidebar-signout:hover{background:#ef444433;border-color:#ef444466;color:#fca5a5}.app-main{flex:1;overflow:auto;padding:1.5rem}@media (max-width: 768px){.app-layout{flex-direction:column}.app-sidebar{width:100%;min-width:0;flex-direction:row;flex-wrap:wrap;align-items:center;gap:.5rem;padding:.75rem 1rem}.app-sidebar-brand{padding:0;border:none;margin-right:auto}.app-sidebar-nav{flex:none;flex-direction:row;padding:0;order:3;width:100%}.app-sidebar-footer{flex-direction:row;align-items:center;border:none;padding:0;gap:.75rem}.app-main{padding:1rem}}.landing{min-height:100vh;background:#fff;color:#0f172a}.landing-header{position:sticky;top:0;z-index:100;background:#ffffffe6;border-bottom:1px solid #e2e8f0;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.landing-header-inner{max-width:1200px;margin:0 auto;padding:1rem 1.5rem;display:flex;align-items:center;justify-content:space-between}.landing-logo{font-size:1.25rem;font-weight:700;color:#2563eb;text-decoration:none;letter-spacing:-.02em}.landing-logo:hover{color:#1d4ed8}.landing-nav{display:flex;align-items:center;gap:1rem}.landing-nav-link{color:#475569;text-decoration:none;font-weight:500;font-size:.95rem}.landing-nav-link:hover{color:#2563eb}.landing-cta{padding:.5rem 1rem;border-radius:8px;font-size:.95rem;font-weight:600;text-decoration:none;transition:background .2s,color .2s}.landing-cta-primary{background:#2563eb;color:#fff}.landing-cta-primary:hover{background:#1d4ed8}.landing-hero{padding:4rem 1.5rem 5rem;max-width:1200px;margin:0 auto;display:grid;gap:3rem;align-items:center}@media (min-width: 900px){.landing-hero{grid-template-columns:1fr 1fr;padding:5rem 1.5rem 6rem}}.landing-hero-badge{display:inline-block;padding:.35rem .75rem;background:#eff6ff;color:#2563eb;font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;border-radius:6px;margin-bottom:1rem}.landing-hero-title{font-size:clamp(2rem,5vw,3rem);font-weight:800;line-height:1.15;letter-spacing:-.03em;margin:0 0 1rem;color:#0f172a}.landing-hero-highlight{color:#2563eb;position:relative}.landing-hero-subtitle{font-size:1.15rem;line-height:1.6;color:#475569;margin:0 0 1.75rem;max-width:520px}.landing-hero-ctas{display:flex;flex-wrap:wrap;gap:.75rem}.landing-btn{display:inline-flex;align-items:center;justify-content:center;padding:.75rem 1.5rem;border-radius:10px;font-size:1rem;font-weight:600;text-decoration:none;transition:background .2s,color .2s,transform .15s}.landing-btn:hover{transform:translateY(-1px)}.landing-btn-lg{padding:.9rem 1.75rem;font-size:1.05rem}.landing-btn-primary{background:#2563eb;color:#fff;border:none}.landing-btn-primary:hover{background:#1d4ed8}.landing-btn-ghost{background:transparent;color:#475569;border:2px solid #e2e8f0}.landing-btn-ghost:hover{border-color:#2563eb;color:#2563eb}.landing-hero-visual{display:flex;justify-content:center;align-items:center}.landing-hero-card{width:100%;max-width:360px;aspect-ratio:4/3;background:linear-gradient(145deg,#f8fafc,#f1f5f9);border:1px solid #e2e8f0;border-radius:16px;padding:2rem;box-shadow:0 25px 50px -12px #00000014}.landing-chart-card{display:flex;flex-direction:column;justify-content:center}.landing-chart-title{margin:0 0 .75rem;font-size:.8rem;font-weight:600;color:#64748b;text-transform:uppercase;letter-spacing:.04em}.landing-chart-svg{width:100%;height:auto;min-height:140px}.landing-chart-label{font-size:10px;fill:#94a3b8;font-family:inherit}.landing-chart-label-y{transform:rotate(-90deg);transform-origin:12px 68px}.landing-section{padding:4rem 1.5rem}.landing-section:nth-child(2n){background:#f8fafc}.landing-container{max-width:1000px;margin:0 auto}.landing-section-title{font-size:clamp(1.75rem,3vw,2.25rem);font-weight:700;text-align:center;margin:0 0 .75rem;color:#0f172a;letter-spacing:-.02em}.landing-section-lead{text-align:center;font-size:1.1rem;line-height:1.6;color:#64748b;margin:0 auto 2.5rem;max-width:600px}.landing-grid{display:grid;gap:1.5rem}.landing-grid-3{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}.landing-feature-card{background:#fff;border:1px solid #e2e8f0;border-radius:14px;padding:1.75rem;transition:border-color .2s,box-shadow .2s}.landing-feature-card:hover{border-color:#bfdbfe;box-shadow:0 10px 30px -10px #2563eb26}.landing-feature-icon{font-size:2rem;margin-bottom:.75rem}.landing-feature-card h3{font-size:1.15rem;font-weight:600;margin:0 0 .5rem;color:#1e293b}.landing-feature-card p{margin:0;font-size:.95rem;line-height:1.5;color:#64748b}.landing-steps{display:flex;flex-direction:column;gap:1.5rem;max-width:640px;margin:0 auto}.landing-step{display:flex;gap:1.25rem;align-items:flex-start;padding:1.5rem;background:#fff;border:1px solid #e2e8f0;border-radius:12px;transition:border-color .2s}.landing-step:hover{border-color:#bfdbfe}.landing-step-num{flex-shrink:0;width:40px;height:40px;display:flex;align-items:center;justify-content:center;background:#2563eb;color:#fff;font-weight:700;font-size:1.1rem;border-radius:10px}.landing-step h3{margin:0 0 .35rem;font-size:1.1rem;font-weight:600;color:#1e293b}.landing-step p{margin:0;font-size:.95rem;line-height:1.5;color:#64748b}.landing-learn-list{max-width:560px;margin:0 auto;padding:0;list-style:none}.landing-learn-list li{position:relative;padding-left:1.75rem;margin-bottom:.85rem;font-size:1rem;line-height:1.5;color:#334155}.landing-learn-list li:before{content:"";position:absolute;left:0;top:.5rem;width:8px;height:8px;background:#2563eb;border-radius:50%}.landing-certificate{background:linear-gradient(135deg,#0f172a,#1e293b);color:#f8fafc}.landing-certificate .landing-section-title{color:#f8fafc}.landing-certificate .landing-section-lead{color:#94a3b8}.landing-certificate-inner{display:grid;gap:2.5rem;align-items:center;max-width:1000px;margin-left:auto;margin-right:auto}@media (min-width: 700px){.landing-certificate-inner{grid-template-columns:1fr 1fr;gap:3rem}}.landing-certificate-content,.landing-certificate-content .landing-section-title{text-align:left}.landing-certificate-content .landing-section-lead{text-align:left;margin-bottom:1.5rem}.landing-certificate-illustration{display:flex;justify-content:center;align-items:center}.landing-certificate-doc{position:relative;width:100%;max-width:260px;aspect-ratio:297 / 210;background:linear-gradient(180deg,#fefefe,#f8fafc);border:3px double #334155;border-radius:4px;padding:1.25rem 1.5rem;box-shadow:0 20px 40px #00000040}.landing-certificate-doc-inner{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;height:100%;gap:.5rem}.landing-certificate-doc-title{font-size:.6rem;font-weight:700;letter-spacing:.15em;color:#64748b;text-transform:uppercase}.landing-certificate-doc-name{font-size:1rem;font-weight:700;color:#0f172a;border-bottom:2px solid #2563eb;padding-bottom:.25rem}.landing-certificate-doc-course{font-size:.65rem;font-weight:600;color:#2563eb;letter-spacing:.02em}.landing-certificate-seal{position:absolute;bottom:.75rem;right:.75rem;width:36px;height:36px;border:2px solid #2563eb;border-radius:50%;display:flex;align-items:center;justify-content:center;background:#eff6ff}.landing-certificate-seal span{font-size:.5rem;font-weight:800;color:#2563eb;letter-spacing:.05em}.landing-cta-section{padding:5rem 1.5rem}.landing-cta-inner{text-align:center}.landing-cta-title{font-size:clamp(1.75rem,3vw,2.25rem);font-weight:700;margin:0 0 .5rem;color:#0f172a}.landing-cta-subtitle{font-size:1.1rem;color:#64748b;margin:0 0 1.5rem}.landing-cta-buttons{display:flex;flex-wrap:wrap;gap:.75rem;justify-content:center}.landing-footer{padding:2rem 1.5rem;border-top:1px solid #e2e8f0;background:#f8fafc}.landing-footer-inner{max-width:1000px;margin:0 auto;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:1rem}.landing-footer-logo{font-weight:700;color:#0f172a;text-decoration:none}.landing-footer-logo:hover{color:#2563eb}.landing-footer-links{display:flex;gap:1.25rem}.landing-footer-links a{color:#64748b;text-decoration:none;font-size:.9rem}.landing-footer-links a:hover{color:#2563eb}.landing-footer-copy{width:100%;margin:1rem 0 0;padding-top:1rem;border-top:1px solid #e2e8f0;font-size:.85rem;color:#94a3b8}.auth-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:1.5rem;background:linear-gradient(145deg,#f8fafc,#f1f5f9,#e2e8f0)}.auth-card{width:100%;max-width:420px;background:#fff;border:1px solid #e2e8f0;border-radius:16px;padding:2.5rem;box-shadow:0 4px 6px -1px #00000014,0 10px 20px -4px #0000000f}.auth-card h1{margin:0 0 .5rem;font-size:1.75rem;font-weight:700;color:#0f172a;text-align:center}.auth-subtitle{margin:0 0 1.75rem;color:#64748b;font-size:.95rem;text-align:center}.auth-form{display:flex;flex-direction:column;gap:1.25rem}.auth-form label{display:flex;flex-direction:column;gap:.4rem;color:#334155;font-size:.9rem;font-weight:500}.auth-form input{padding:.75rem 1rem;border:1px solid #cbd5e1;border-radius:10px;background:#fff;color:#0f172a;font-size:1rem;transition:border-color .2s,box-shadow .2s}.auth-form input::placeholder{color:#94a3b8}.auth-form input:focus{outline:none;border-color:#2563eb;box-shadow:0 0 0 3px #2563eb26}.auth-error{padding:.75rem 1rem;background:#fef2f2;border:1px solid #fecaca;border-radius:10px;color:#b91c1c;font-size:.9rem}.auth-btn{padding:.9rem 1.25rem;margin-top:.25rem;background:#2563eb;border:none;border-radius:10px;color:#fff;font-size:1rem;font-weight:600;cursor:pointer;transition:background .2s,transform .15s}.auth-btn:hover:not(:disabled){background:#1d4ed8;transform:translateY(-1px)}.auth-btn:disabled{opacity:.7;cursor:not-allowed}.auth-divider{display:flex;align-items:center;gap:1rem;margin:1rem 0 .25rem}.auth-divider:before,.auth-divider:after{content:"";flex:1;height:1px;background:#e2e8f0}.auth-divider span{color:#94a3b8;font-size:.85rem}.auth-btn-google{display:flex;align-items:center;justify-content:center;gap:.6rem;width:100%;padding:.75rem 1.25rem;background:#fff;border:1px solid #cbd5e1;border-radius:10px;color:#374151;font-size:1rem;font-weight:500;cursor:pointer;transition:background .2s,border-color .2s,box-shadow .2s}.auth-btn-google:hover:not(:disabled){background:#f8fafc;border-color:#94a3b8;box-shadow:0 1px 3px #0000000f}.auth-btn-google:disabled{opacity:.7;cursor:not-allowed}.auth-google-icon{width:20px;height:20px;flex-shrink:0}.auth-footer{margin:1.5rem 0 0;text-align:center;color:#64748b;font-size:.9rem}.auth-footer a{color:#2563eb;text-decoration:none;font-weight:500}.auth-footer a:hover{text-decoration:underline}.complete-profile-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:1.5rem;background:linear-gradient(145deg,#f8fafc,#f1f5f9,#e2e8f0)}.complete-profile-page .complete-profile-card{width:100%;max-width:520px}.complete-profile-card{background:#fff;border:1px solid #e2e8f0;border-radius:16px;padding:2rem;box-shadow:0 4px 6px -1px #00000014,0 10px 20px -4px #0000000f}.complete-profile-card h1{margin:0 0 .5rem;font-size:1.5rem;font-weight:700;color:#0f172a}.complete-profile-subtitle{margin:0 0 1.5rem;color:#64748b;font-size:.95rem;line-height:1.5}.complete-profile-form{display:flex;flex-direction:column;gap:1.25rem}.complete-profile-form label{display:flex;flex-direction:column;gap:.4rem;color:#334155;font-size:.9rem;font-weight:500}.required{color:#dc2626}.complete-profile-form input{padding:.75rem 1rem;border:1px solid #cbd5e1;border-radius:10px;background:#fff;color:#0f172a;font-size:1rem;transition:border-color .2s,box-shadow .2s}.complete-profile-form input::placeholder{color:#94a3b8}.complete-profile-form input:focus{outline:none;border-color:#2563eb;box-shadow:0 0 0 3px #2563eb26}.complete-profile-error{padding:.75rem 1rem;background:#fef2f2;border:1px solid #fecaca;border-radius:10px;color:#b91c1c;font-size:.9rem}.complete-profile-btn{padding:.9rem 1.25rem;margin-top:.25rem;background:#2563eb;border:none;border-radius:10px;color:#fff;font-size:1rem;font-weight:600;cursor:pointer;transition:background .2s,transform .15s}.complete-profile-btn:hover:not(:disabled){background:#1d4ed8;transform:translateY(-1px)}.complete-profile-btn:disabled{opacity:.7;cursor:not-allowed}.video-page{min-height:100vh;background:linear-gradient(145deg,#f8fafc,#f1f5f9,#e2e8f0);color:#0f172a;padding:1.5rem}.video-page-loading{display:flex;align-items:center;justify-content:center;min-height:60vh;color:#64748b}.video-page-intro{max-width:960px;margin:0 auto 1.5rem}.video-page-main-title{margin:0 0 .5rem;font-size:1.5rem;font-weight:700;color:#0f172a}.video-page-intro h2{margin:0 0 .5rem;font-size:1.35rem;font-weight:600;color:#1e293b}.video-page-intro p{margin:0;color:#64748b;font-size:1rem;line-height:1.5}.youtube-lightbox{position:relative;max-width:960px;margin:0 auto 1.5rem;border-radius:16px;overflow:hidden;border:1px solid #e2e8f0;box-shadow:0 4px 6px -1px #00000014,0 10px 20px -4px #0000000f}.youtube-lightbox-backdrop{position:absolute;top:0;right:0;bottom:0;left:0;background:transparent;pointer-events:none}.youtube-lightbox-content{position:relative;background:#fff}.youtube-lightbox-player-wrap{position:relative;padding-bottom:56.25%;height:0;overflow:hidden}.youtube-lightbox-embed,.youtube-lightbox-embed iframe{position:absolute;top:0;left:0;width:100%;height:100%}.youtube-lightbox-progress-bar{padding:.75rem 1rem;background:#f8fafc;border-top:1px solid #e2e8f0}.youtube-lightbox-progress-fill{height:4px;background:linear-gradient(90deg,#2563eb,#3b82f6);border-radius:2px;margin-bottom:.5rem;transition:width .3s ease}.youtube-lightbox-progress-text{font-size:.85rem;color:#64748b}.youtube-lightbox-complete{padding:.75rem 1rem;background:#eff6ff;border-top:1px solid #bfdbfe;color:#1d4ed8;font-size:.9rem;font-weight:500}.video-page-actions{max-width:960px;margin:0 auto;text-align:center}.video-page-cta{display:inline-block;padding:.9rem 1.75rem;background:#2563eb;border-radius:10px;color:#fff;font-size:1rem;font-weight:600;text-decoration:none;transition:background .2s,transform .15s}.video-page-cta:hover:not(.video-page-cta-disabled){background:#1d4ed8;transform:translateY(-1px)}.video-page-cta-disabled{background:#94a3b8;color:#e2e8f0;cursor:not-allowed;pointer-events:none}.course-cards{max-width:960px;margin:0 auto;display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.25rem}.course-card{position:relative;display:block;padding:1.5rem;background:#fff;border:1px solid #e2e8f0;border-radius:12px;color:#0f172a;text-decoration:none;transition:border-color .2s,box-shadow .2s;box-shadow:0 1px 3px #0000000d}.course-card:hover:not(.course-card-disabled){border-color:#2563eb;box-shadow:0 0 0 2px #2563eb26}.course-card-disabled{opacity:.7;cursor:not-allowed;pointer-events:none}.course-card h3{margin:0 0 .5rem;font-size:1.1rem;color:#1e293b}.course-card p{margin:0;font-size:.9rem;color:#64748b;line-height:1.4}.course-badge{position:absolute;top:1rem;right:1rem;padding:.25rem .6rem;background:#eff6ff;border-radius:6px;color:#1d4ed8;font-size:.75rem;font-weight:600}.quiz-page{min-height:100vh;background:linear-gradient(145deg,#f8fafc,#f1f5f9,#e2e8f0);color:#0f172a;padding:1.5rem}.quiz-page-loading{display:flex;align-items:center;justify-content:center;min-height:60vh;color:#64748b}.quiz-page-inner{max-width:720px;margin:0 auto}.quiz-page-title{margin:0 0 .75rem;font-size:1.5rem;font-weight:700;color:#0f172a}.quiz-page-notice{padding:1rem 1.25rem;background:#eff6ff;border:1px solid #bfdbfe;border-radius:10px;color:#1e40af;font-size:.95rem;font-weight:500;margin-bottom:1.25rem}.quiz-page-video-required{padding:2rem;background:#fff;border:1px solid #e2e8f0;border-radius:12px;text-align:center;box-shadow:0 1px 3px #0000000d}.quiz-page-video-required-title{margin:0 0 .75rem;font-size:1.25rem;font-weight:600;color:#0f172a}.quiz-page-video-required-text{margin:0 0 1.5rem;color:#64748b;font-size:1rem;line-height:1.5}.quiz-page-video-required-btn{display:inline-block;padding:.75rem 1.5rem;background:#2563eb;color:#fff;border-radius:10px;font-size:1rem;font-weight:600;text-decoration:none;transition:background .2s,transform .15s}.quiz-page-video-required-btn:hover{background:#1d4ed8;transform:translateY(-1px)}.quiz-page-inner h2{margin:0 0 .5rem;font-size:1.25rem;font-weight:600;color:#1e293b}.quiz-page-desc{margin:0 0 1.5rem;color:#64748b;font-size:.95rem;line-height:1.5}.quiz-form{display:flex;flex-direction:column;gap:1.5rem}.quiz-question{padding:1.25rem;background:#fff;border:1px solid #e2e8f0;border-radius:12px;margin:0;box-shadow:0 1px 3px #0000000d}.quiz-question legend{font-size:1rem;font-weight:600;color:#1e293b;margin-bottom:.75rem;padding:0 .25rem}.quiz-options{display:flex;flex-direction:column;gap:.5rem}.quiz-option{display:flex;align-items:flex-start;gap:.75rem;cursor:pointer;padding:.6rem .75rem;border-radius:8px;transition:background .15s}.quiz-option:hover{background:#f8fafc}.quiz-option input{margin:.25rem 0 0;accent-color:#2563eb}.quiz-option-label{color:#334155;font-size:.95rem;line-height:1.4}.quiz-actions{margin-top:.5rem;padding-top:1rem}.quiz-submit{padding:.9rem 1.75rem;background:#2563eb;border:none;border-radius:10px;color:#fff;font-size:1rem;font-weight:600;cursor:pointer;transition:background .2s,transform .15s}.quiz-submit:hover:not(:disabled){background:#1d4ed8;transform:translateY(-1px)}.quiz-submit:disabled{opacity:.7;cursor:not-allowed}.quiz-page-result{padding:2rem;background:#fff;border:1px solid #e2e8f0;border-radius:12px;box-shadow:0 1px 3px #0000000d}.quiz-page-result h2{margin:0 0 1rem;font-size:1.25rem;color:#1e293b}.quiz-page-score{margin:0 0 .5rem;font-size:1.1rem;color:#334155}.quiz-page-score strong{color:#0f172a}.quiz-page-pass{margin:0 0 .5rem;padding:.75rem 1rem;background:#f0fdf4;border:1px solid #bbf7d0;border-radius:8px;color:#166534;font-size:.95rem;font-weight:500}.quiz-page-certificate-email{margin:0 0 1rem;padding:.75rem 1rem;background:#eff6ff;border:1px solid #bfdbfe;border-radius:8px;color:#1e40af;font-size:.95rem;font-weight:500}.quiz-page-fail{margin:0 0 1rem;padding:.75rem 1rem;background:#fef2f2;border:1px solid #fecaca;border-radius:8px;color:#b91c1c;font-size:.95rem}.quiz-page-result-actions{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:1rem}.quiz-page-btn{display:inline-block;padding:.6rem 1.25rem;border-radius:8px;font-size:.95rem;font-weight:500;text-decoration:none;transition:background .2s,color .2s}.quiz-page-btn-primary{background:#2563eb;color:#fff}.quiz-page-btn-primary:hover{background:#1d4ed8}.quiz-page-btn-secondary{background:#f1f5f9;color:#475569;border:1px solid #e2e8f0}.quiz-page-btn-secondary:hover{background:#e2e8f0;color:#0f172a}.certificate-wrapper{margin:0 auto;max-width:900px}.certificate-download-bar{margin-bottom:1rem;text-align:center}.certificate-download-btn{padding:.75rem 1.5rem;background:#0f172a;color:#fff;border:none;border-radius:10px;font-size:1rem;font-weight:600;cursor:pointer;transition:background .2s,transform .15s}.certificate-download-btn:hover{background:#1e293b;transform:translateY(-1px)}.certificate-paper{width:100%;aspect-ratio:297 / 210;max-height:85vh;background:linear-gradient(145deg,#fefefe,#f8fafc);box-shadow:0 4px 24px #0000001f,0 0 0 1px #0000000f;border-radius:4px;padding:24px;box-sizing:border-box}.certificate-border{width:100%;height:100%;border:3px double #0f172a;border-radius:2px;padding:32px 40px;box-sizing:border-box;display:flex;align-items:center;justify-content:center;position:relative}.certificate-inner{text-align:center;width:100%;max-width:520px}.certificate-issued{font-size:clamp(.75rem,2.2vw,1rem);letter-spacing:.35em;text-transform:uppercase;color:#64748b;margin:0 0 8px;font-weight:600}.certificate-this-is{font-size:clamp(.85rem,2.5vw,1.1rem);color:#475569;margin:0 0 4px}.certificate-name{font-size:clamp(1.5rem,5vw,2.5rem);font-weight:700;color:#0f172a;margin:12px 0;line-height:1.2;letter-spacing:.02em;border-bottom:2px solid #2563eb;display:inline-block;padding-bottom:8px}.certificate-has-completed{font-size:clamp(.8rem,2.2vw,1rem);color:#475569;margin:16px 0 4px}.certificate-course{font-size:clamp(1rem,3vw,1.4rem);font-weight:700;color:#0f172a;margin:4px 0 0}.certificate-course-sub{font-size:clamp(.85rem,2.5vw,1.1rem);color:#2563eb;font-weight:600;margin:4px 0 16px}.certificate-date{font-size:clamp(.75rem,2vw,.95rem);color:#64748b;margin:0}.certificate-seal{position:absolute;bottom:28px;right:36px;width:56px;height:56px;border:2px solid #2563eb;border-radius:50%;display:flex;align-items:center;justify-content:center;background:#eff6ff}.certificate-seal-inner{font-size:.75rem;font-weight:800;color:#2563eb;letter-spacing:.05em}@media print{.certificate-download-bar{display:none!important}.certificate-paper{box-shadow:none;max-height:none}}.profile-page{max-width:640px;margin:0 auto}.profile-page-loading{display:flex;align-items:center;justify-content:center;min-height:40vh;color:#64748b}.profile-page-title{margin:0 0 1.5rem;font-size:1.5rem;font-weight:700;color:#0f172a}.profile-card{background:#fff;border:1px solid #e2e8f0;border-radius:12px;padding:1.5rem;margin-bottom:1rem;box-shadow:0 1px 3px #0000000d}.profile-card h2{margin:0 0 .75rem;font-size:1.1rem;font-weight:600;color:#1e293b}.profile-email{margin:0;color:#475569;font-size:.95rem}.profile-dl{margin:0;display:grid;gap:.5rem 1rem}.profile-dl dt{font-weight:600;color:#475569;font-size:.8rem;text-transform:uppercase;letter-spacing:.02em}.profile-dl dd{margin:0 0 .5rem;color:#1e293b;font-size:.95rem}.profile-dl dd:last-child{margin-bottom:0}.profile-dl a{color:#2563eb;text-decoration:none}.profile-dl a:hover{text-decoration:underline}.profile-progress-list{margin:0;padding:0;list-style:none}.profile-progress-list li{padding:.4rem 0;color:#475569;font-size:.95rem}.profile-progress-done{color:#1e293b;font-weight:500}.profile-score{color:#64748b;font-weight:400}.profile-certificate-card{border-color:#bfdbfe;background:#eff6ff}.profile-certificate-email-message{margin:0 0 .75rem;padding:.75rem 1rem;background:#eff6ff;border:1px solid #bfdbfe;border-radius:8px;color:#1e40af;font-size:.95rem;font-weight:500}.profile-certificate-message{margin:0 0 1rem;color:#334155;font-size:.95rem;line-height:1.5}.profile-certificate-badge{display:inline-block;padding:.5rem 1rem;background:#2563eb;color:#fff;border-radius:8px;font-size:.9rem;font-weight:600;margin-bottom:1rem}.profile-link{color:#2563eb;font-size:.95rem;font-weight:500;text-decoration:none}.profile-link:hover{text-decoration:underline}.profile-link-block{display:inline-block;margin-top:1rem}.profile-hint{margin:0;color:#64748b;font-size:.95rem;line-height:1.5}.profile-hint a{color:#2563eb;text-decoration:none}.profile-hint a:hover{text-decoration:underline}.certifications-page{max-width:960px;margin:0 auto}.certifications-page-loading{display:flex;align-items:center;justify-content:center;min-height:40vh;color:#64748b}.certifications-page-title{margin:0 0 .5rem;font-size:1.5rem;font-weight:700;color:#0f172a}.certifications-page-email-message{margin:0 0 .75rem;padding:.75rem 1.25rem;background:#eff6ff;border:1px solid #bfdbfe;border-radius:10px;color:#1e40af;font-size:1rem;font-weight:500}.certifications-page-intro{margin:0 0 1.25rem;color:#64748b;font-size:1rem;line-height:1.5}.certifications-page-locked{padding:2rem;background:#fff;border:1px solid #e2e8f0;border-radius:12px;text-align:center;box-shadow:0 1px 3px #0000000d}.certifications-page-locked-title{margin:0 0 .75rem;font-size:1.2rem;font-weight:600;color:#1e293b}.certifications-page-locked-text{margin:0 0 1.5rem;color:#64748b;font-size:.95rem;line-height:1.5}.certifications-page-locked-btn{display:inline-block;padding:.75rem 1.5rem;background:#2563eb;color:#fff;border-radius:10px;font-size:1rem;font-weight:600;text-decoration:none;transition:background .2s,transform .15s}.certifications-page-locked-btn:hover{background:#1d4ed8;transform:translateY(-1px)}*,*:before,*:after{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.app-loading{min-height:100vh;display:flex;align-items:center;justify-content:center;background:#f8fafc;color:#64748b}