:root{--bg-main:#fff;--bg-secondary:#f4f7f9;--text-main:#333;--text-muted:#7a848e;--primary-color:#105efb;--primary-hover:#0d4ed1;--primary-light:#e6f0ff;--border-color:#e5e8ed;--card-shadow:0 4px 20px #0000000d;--card-shadow-hover:0 15px 35px #105efb26;--tg-color:#08c;--success:#00d26a;--footer-bg:#1a1e23}*{box-sizing:border-box;scroll-behavior:smooth;margin:0;padding:0;font-family:Inter,sans-serif}body{background-color:var(--bg-main);color:var(--text-main);flex-direction:column;min-height:100vh;line-height:1.6;display:flex;overflow-x:hidden}.container{max-width:1140px;margin:0 auto;padding:0 20px}.btn-primary{background:var(--primary-color);color:#fff;cursor:pointer;text-align:center;border:none;border-radius:8px;padding:14px 28px;font-size:1rem;font-weight:600;text-decoration:none;transition:background .2s,transform .2s,box-shadow .2s;display:inline-block;box-shadow:0 4px 15px #105efb4d}.btn-primary:hover{background:var(--primary-hover);transform:translateY(-2px);box-shadow:0 8px 25px #105efb66}.btn-primary:active{transform:translateY(0)}.btn-primary:disabled{opacity:.6;cursor:not-allowed;transform:none}.btn-outline{color:var(--primary-color);border:1px solid var(--primary-color);cursor:pointer;background:0 0;border-radius:8px;padding:12px 24px;font-size:.95rem;font-weight:600;text-decoration:none;transition:all .2s;display:inline-block}.btn-outline:hover{background:var(--primary-color);color:#fff;transform:translateY(-2px)}.btn-tg{background:var(--tg-color);color:#fff;border-radius:8px;justify-content:center;align-items:center;gap:8px;padding:12px 24px;font-weight:600;text-decoration:none;transition:all .2s;display:inline-flex}.btn-tg:hover{background:#069;transform:translateY(-2px)}.hero{text-align:center;background:linear-gradient(135deg,#f0f4f8 0%,#fff 100%);padding:140px 0 60px}.hero-badge{background:var(--primary-light);color:var(--primary-color);border-radius:50px;align-items:center;gap:6px;margin-bottom:20px;padding:6px 16px;font-size:.85rem;font-weight:600;display:inline-flex}.hero h1{color:#1a1a1a;letter-spacing:-1px;margin-bottom:20px;font-size:2.8rem;font-weight:800;line-height:1.2}.hero h1 span{color:var(--primary-color)}.hero p{max-width:700px;color:var(--text-muted);margin:0 auto 15px;font-size:1.15rem}.hero-stats{flex-wrap:wrap;justify-content:center;gap:40px;margin-top:30px;display:flex}.hero-stat{text-align:center}.hero-stat strong{color:var(--primary-color);font-size:1.8rem;font-weight:800;display:block}.hero-stat span{color:var(--text-muted);font-size:.85rem}.generator-section{background:var(--bg-main);padding:40px 0 80px}.generator-card{border:1px solid var(--border-color);background:#fff;border-radius:16px;max-width:720px;margin:0 auto;padding:40px;box-shadow:0 10px 40px #00000014}.field-group{margin-bottom:22px}.field-group label{color:var(--text-main);margin-bottom:8px;font-size:.95rem;font-weight:600;display:block}.field-group label .hint{color:var(--text-muted);font-size:.85rem;font-weight:400}.tg-input{border:2px solid var(--border-color);border-radius:8px;outline:none;width:100%;padding:14px 16px;font-family:Inter,sans-serif;font-size:1.05rem;transition:border-color .2s,box-shadow .2s}.tg-input:focus{border-color:var(--primary-color);box-shadow:0 0 0 3px #105efb1a}.tg-input::placeholder{color:#b0b8c2}textarea.tg-input{resize:vertical;min-height:70px}.radio-group{background:var(--bg-secondary);border-radius:10px;gap:10px;padding:6px;display:flex}.radio-tab{flex:1;position:relative}.radio-tab input{opacity:0;position:absolute}.radio-tab label{cursor:pointer;color:var(--text-muted);border-radius:8px;justify-content:center;align-items:center;gap:8px;margin:0;padding:12px;font-size:.95rem;font-weight:600;transition:all .2s;display:flex}.radio-tab input:checked+label{color:var(--primary-color);background:#fff;box-shadow:0 2px 8px #00000014}.radio-tab label svg{width:18px;height:18px}.btn-generate{width:100%;margin-top:6px;padding:16px;font-size:1.05rem}.result-box{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:12px;margin-top:26px;padding:26px;animation:.4s slideDown;display:none}.result-box.visible{display:block}@keyframes slideDown{0%{opacity:0;transform:translateY(-12px)}to{opacity:1;transform:translateY(0)}}.result-box h3{color:var(--text-main);align-items:center;gap:8px;margin-bottom:14px;font-size:1.1rem;display:flex}.result-box h3 .check{background:var(--success);color:#fff;border-radius:50%;justify-content:center;align-items:center;width:22px;height:22px;font-size:.8rem;display:inline-flex}.link-display{flex-wrap:wrap;gap:10px;margin-bottom:18px;display:flex}.link-display input{border:2px solid var(--border-color);min-width:200px;color:var(--primary-color);background:#fff;border-radius:8px;outline:none;flex:1;padding:12px 14px;font-size:.95rem;font-weight:600}.btn-copy{background:var(--primary-color);color:#fff;cursor:pointer;border:none;border-radius:8px;align-items:center;gap:6px;padding:12px 18px;font-size:.9rem;font-weight:600;transition:all .2s;display:inline-flex}.btn-copy:hover{background:var(--primary-hover)}.btn-copy.copied{background:var(--success)}.qr-block{flex-wrap:wrap;align-items:center;gap:24px;display:flex}.qr-canvas-wrap{border:1px solid var(--border-color);background-color:#fff;background-image:linear-gradient(45deg,#eef1f5 25%,#0000 25%),linear-gradient(-45deg,#eef1f5 25%,#0000 25%),linear-gradient(45deg,#0000 75%,#eef1f5 75%),linear-gradient(-45deg,#0000 75%,#eef1f5 75%);background-position:0 0,0 8px,8px -8px,-8px 0;background-repeat:repeat;background-size:16px 16px;background-attachment:scroll;background-origin:padding-box;background-clip:border-box;border-radius:12px;padding:12px;box-shadow:0 4px 12px #0000000f}.qr-canvas-wrap.bg-white{background:#fff}.qr-canvas-wrap canvas,.qr-canvas-wrap img{border-radius:6px;width:200px;max-width:100%;height:200px;display:block}.qr-actions{flex-direction:column;gap:10px;display:flex}.qr-bg-toggle{background:var(--bg-secondary);border-radius:10px;align-items:center;gap:8px;margin-bottom:16px;padding:6px;display:flex}.qr-bg-toggle .qr-bg-label{color:var(--text-muted);white-space:nowrap;padding:0 8px;font-size:.82rem;font-weight:600}.qr-bg-toggle .qr-bg-btn{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:8px;flex:1;justify-content:center;align-items:center;gap:6px;padding:8px 10px;font-family:inherit;font-size:.85rem;font-weight:600;transition:all .2s;display:inline-flex}.qr-bg-toggle .qr-bg-btn:hover{color:var(--primary-color)}.qr-bg-toggle .qr-bg-btn.active{color:var(--primary-color);background:#fff;box-shadow:0 2px 8px #00000014}.qr-bg-toggle .qr-bg-swatch{border:1px solid var(--border-color);border-radius:4px;flex-shrink:0;width:16px;height:16px}.qr-bg-toggle .qr-bg-swatch.white{background:#fff}.qr-bg-toggle .qr-bg-swatch.transparent{background:linear-gradient(45deg,#cfd6e0 25%,#0000 25%) 0 0/8px 8px,linear-gradient(-45deg,#cfd6e0 25%,#0000 25%) 0 4px/8px 8px,#fff}.error-msg{color:#d32f2f;background:#fff0f0;border:1px solid #ffcdd2;border-radius:8px;margin-top:16px;padding:12px 16px;font-size:.92rem;font-weight:500;display:none}.error-msg.visible{display:block}.history-section{margin-top:24px}.history-section h4{color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;margin-bottom:10px;font-size:.9rem}.history-list{flex-direction:column;gap:8px;display:flex}.history-item{border:1px solid var(--border-color);background:#fff;border-radius:8px;justify-content:space-between;align-items:center;padding:10px 14px;font-size:.9rem;transition:all .2s;display:flex}.history-item:hover{border-color:var(--primary-color)}.history-item a{color:var(--primary-color);text-overflow:ellipsis;white-space:nowrap;max-width:60%;font-weight:600;text-decoration:none;overflow:hidden}.history-item .meta{color:var(--text-muted);font-size:.8rem}.history-item button{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:4px;padding:4px 8px;transition:all .2s}.history-item button:hover{background:var(--bg-secondary);color:#d32f2f}section{scroll-margin-top:80px}.section-header{text-align:center;margin-bottom:50px}.section-header h2{color:var(--text-main);margin-bottom:15px;font-size:2.2rem;font-weight:800}.section-header p{color:var(--text-muted);max-width:700px;margin:0 auto;font-size:1.1rem}.features{background:var(--bg-secondary);padding:80px 0}.features-grid{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:24px;display:grid}.feature-card{border:1px solid var(--border-color);box-shadow:var(--card-shadow);background:#fff;border-radius:12px;padding:28px 24px;transition:all .3s}.feature-card:hover{box-shadow:var(--card-shadow-hover);border-color:#105efb33;transform:translateY(-6px)}.feature-icon{background:var(--primary-light);width:50px;height:50px;color:var(--primary-color);border-radius:12px;justify-content:center;align-items:center;margin-bottom:16px;display:flex}.feature-icon svg{width:26px;height:26px}.feature-card h3{color:#1a1a1a;margin-bottom:10px;font-size:1.15rem}.feature-card p{color:var(--text-muted);font-size:.95rem}.how-to{background:var(--bg-main);padding:80px 0}.steps-grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:30px;max-width:1000px;margin:0 auto;display:grid}.step-card{text-align:center;padding:20px;position:relative}.step-number{background:var(--primary-color);color:#fff;border-radius:50%;justify-content:center;align-items:center;width:56px;height:56px;margin-bottom:18px;font-size:1.4rem;font-weight:800;display:inline-flex;box-shadow:0 8px 20px #105efb4d}.step-card h3{color:var(--text-main);margin-bottom:8px;font-size:1.1rem}.step-card p{color:var(--text-muted);font-size:.93rem}.use-cases{background:var(--bg-secondary);padding:80px 0}.usecases-grid{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px;display:grid}.usecase-card{border-left:4px solid var(--primary-color);box-shadow:var(--card-shadow);background:#fff;border-radius:12px;padding:28px}.usecase-card h3{color:var(--text-main);align-items:center;gap:8px;margin-bottom:10px;font-size:1.1rem;display:flex}.usecase-card h3 .emoji{font-size:1.3rem}.usecase-card p{color:var(--text-muted);font-size:.93rem}.faq{background:var(--bg-main);padding:80px 0}.faq-list{max-width:820px;margin:0 auto}.faq-item{border:1px solid var(--border-color);background:#fff;border-radius:10px;margin-bottom:12px;transition:all .2s;overflow:hidden}.faq-item:hover{border-color:#105efb4d}.faq-item summary{cursor:pointer;color:var(--text-main);justify-content:space-between;align-items:center;padding:18px 22px;font-size:1.02rem;font-weight:600;list-style:none;transition:color .2s;display:flex}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:hover{color:var(--primary-color)}.faq-item summary .plus{color:var(--primary-color);flex-shrink:0;margin-left:12px;font-size:1.4rem;transition:transform .2s}.faq-item[open] summary .plus{transform:rotate(45deg)}.faq-item .faq-answer{color:var(--text-muted);padding:0 22px 18px;font-size:.97rem;line-height:1.7;max-height:none!important;transition:none!important;overflow:visible!important}.faq-item[open] .faq-answer{max-height:none!important;overflow:visible!important}.cta{background:var(--bg-main);padding:80px 0}.cta-box{background:var(--primary-color);text-align:center;color:#fff;border-radius:16px;padding:50px 40px;position:relative;overflow:hidden}.cta-box:before{content:"";pointer-events:none;background:radial-gradient(circle,#ffffff1a 0%,#0000 60%);width:200%;height:200%;position:absolute;top:-50%;left:-50%}.cta-box h2{margin-bottom:14px;font-size:2rem;position:relative}.cta-box p{opacity:.95;max-width:620px;margin-bottom:26px;margin-left:auto;margin-right:auto;font-size:1.1rem;position:relative}.cta-buttons{flex-wrap:wrap;justify-content:center;gap:14px;display:flex;position:relative}.cta-buttons .btn-primary{color:var(--primary-color);background:#fff;box-shadow:0 4px 20px #0003}.cta-buttons .btn-primary:hover{background:#f0f4f8}.cta-buttons .btn-outline{color:#fff;border-color:#fff}.cta-buttons .btn-outline:hover{color:var(--primary-color);background:#fff}.toast{color:#fff;z-index:2000;background:#1a1e23;border-radius:10px;align-items:center;gap:8px;padding:14px 24px;font-size:.95rem;font-weight:600;transition:transform .3s cubic-bezier(.175,.885,.32,1.275);display:flex;position:fixed;bottom:30px;left:50%;transform:translate(-50%)translateY(120px);box-shadow:0 10px 30px #0000004d}.toast.show{transform:translate(-50%)translateY(0)}.toast.success{background:var(--success)}.toast.error{background:#d32f2f}.fade-in{opacity:0;transition:opacity .7s cubic-bezier(.165,.84,.44,1),transform .7s cubic-bezier(.165,.84,.44,1);transform:translateY(30px)}.fade-in.is-visible{opacity:1;transform:translateY(0)}@media (max-width:768px){.nav-links a:not(.nav-back){display:none}.hero{padding:120px 0 40px}.hero h1{font-size:2rem}.hero p{font-size:1rem}.hero-stats{gap:24px}.hero-stat strong{font-size:1.4rem}.generator-card{padding:24px 20px}.section-header h2{font-size:1.7rem}.qr-block{flex-direction:column;align-items:stretch}.qr-actions{flex-direction:row}.qr-actions .btn-outline{text-align:center;flex:1}.footer-container{grid-template-columns:1fr;gap:30px}.cta-box{padding:36px 24px}.cta-box h2{font-size:1.5rem}.footer-bottom-flex{text-align:center;flex-direction:column}}@media (max-width:480px){.hero h1{font-size:1.7rem}.link-display{flex-direction:column}.link-display input{width:100%}.btn-copy{justify-content:center;width:100%}.radio-tab label{padding:10px 6px;font-size:.85rem}}