:root{--primary: #4f46e5;--secondary: #818cf8;--accent: #c084fc;--bg-deep: #0f172a;--white: #ffffff;--glass: rgba(255, 255, 255, .85);--border: rgba(255, 255, 255, .4);--text-main: #1e293b;--text-dim: #64748b;--radius-xl: 24px;--radius-2xl: 32px;--shadow-premium: 0 25px 50px -12px rgba(0, 0, 0, .1), 0 0 1px 0 rgba(79, 70, 229, .2);--font-heading: "Plus Jakarta Sans", sans-serif;--font-body: "Inter", sans-serif;--mx: 50%;--my: 50%}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-body);color:var(--text-main);background:var(--bg-deep);min-height:100vh;overflow-x:hidden;line-height:1.5}#bg-canvas{position:fixed;top:0;left:0;width:100vw;height:100vh;z-index:-1;background:radial-gradient(circle at var(--mx) var(--my),#1e1b4b 0%,#0f172a 100%);overflow:hidden}.blob{position:absolute;filter:blur(80px);border-radius:50%;opacity:.4;transition:transform .2s ease-out}.b1{width:500px;height:500px;background:var(--primary);top:-10%;left:-5%;animation:float-base 20s infinite alternate;transform:translate(calc(var(--mx) / 20),calc(var(--my) / 20))}.b2{width:400px;height:400px;background:var(--accent);bottom:0;right:-5%;animation:float-base 25s infinite alternate-reverse;transform:translate(calc(var(--mx) / -15),calc(var(--my) / -15))}.b3{width:300px;height:300px;background:var(--secondary);top:40%;left:50%;animation:float-base 18s infinite alternate;transform:translate(calc(var(--mx) / 30),calc(var(--my) / 30))}@keyframes float-base{0%{transform:translate(0) scale(1)}to{transform:translate(100px,50px) scale(1.1)}}.particles{position:absolute;inset:0;background-image:radial-gradient(circle at 2px 2px,rgba(255,255,255,.05) 1px,transparent 0);background-size:40px 40px;opacity:.5}.app-wrapper{min-height:100vh;display:flex;flex-direction:column;padding:1.5rem;z-index:10;position:relative}.container{width:100%;max-width:800px;margin:0 auto}.navbar{display:flex;justify-content:space-between;align-items:center;padding:1.5rem 0;margin-bottom:2rem}.logo{font-family:var(--font-heading);font-weight:800;font-size:1.35rem;color:#fff;display:flex;align-items:center;gap:.75rem}.logo-icon{width:36px;height:36px;background:var(--white);border-radius:10px;display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:1.25rem}.badge-stats{background:#ffffff1a;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:.5rem 1rem;border-radius:99px;color:#a5b4fc;font-size:.75rem;font-weight:600;border:1px solid rgba(255,255,255,.1)}.hero{text-align:center;margin-bottom:3.5rem}.hero h1{font-family:var(--font-heading);font-size:clamp(2.5rem,6vw,3.5rem);font-weight:800;color:#fff;letter-spacing:-.04em;line-height:1.1;margin-bottom:1rem}.hero p{color:#cbd5e1;font-size:1.15rem;font-weight:400;max-width:500px;margin:0 auto}.glass-card{background:var(--glass);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border:1px solid var(--border);border-radius:var(--radius-2xl);padding:3rem;box-shadow:var(--shadow-premium);margin-bottom:4rem}@media(max-width:640px){.glass-card{padding:2rem 1.5rem}}.stepper{display:flex;justify-content:space-between;margin-bottom:3rem;gap:1rem}.step{flex:1;display:flex;flex-direction:column;align-items:center;gap:.75rem;position:relative}.step-circle{width:40px;height:40px;border-radius:50%;background:#f1f5f9;display:flex;align-items:center;justify-content:center;color:var(--text-dim);font-weight:700;font-size:.9rem;transition:all .3s cubic-bezier(.4,0,.2,1);border:4px solid var(--white);box-shadow:0 4px 6px -1px #0000000d}.step.active .step-circle{background:var(--primary);color:#fff;transform:scale(1.1);box-shadow:0 10px 15px -3px #4f46e566}.step.done .step-circle{background:#10b981;color:#fff}.step-label{font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--text-dim)}.step.active .step-label{color:var(--primary)}.form-group{margin-bottom:1.75rem}.label{display:block;font-weight:600;font-size:.875rem;margin-bottom:.6rem;color:var(--text-main)}.input{width:100%;padding:1rem 1.25rem;border-radius:14px;border:1px solid rgba(0,0,0,.05);background:#f8fafc;font-family:inherit;font-size:1rem;transition:all .2s}.input:focus{outline:none;background:#fff;border-color:var(--primary);box-shadow:0 0 0 4px #4f46e51a}.loading-overlay{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:4rem 1rem}.spinner{width:60px;height:60px;border:4px solid #f1f5f9;border-top-color:var(--primary);border-radius:50%;animation:spin 1s linear infinite;margin-bottom:1.5rem}@keyframes spin{to{transform:rotate(360deg)}}.comparison-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem}@media(max-width:768px){.comparison-grid{grid-template-columns:1fr}}.comp-card{padding:2.5rem;border-radius:var(--radius-xl);border:2px solid transparent;transition:all .3s;display:flex;flex-direction:column}.comp-premium{background:linear-gradient(135deg,#fff,#f5f3ff);border-color:#ddd6fe}.comp-eco{background:linear-gradient(135deg,#fff,#eff6ff);border-color:#dbeafe}.comp-badge{display:inline-block;padding:.4rem .8rem;border-radius:10px;font-size:.65rem;font-weight:800;text-transform:uppercase;margin-bottom:1rem}.badge-purple{background:#ede9fe;color:#6d28d9}.badge-blue{background:#dbeafe;color:#1d4ed8}.comp-price-title{font-size:.85rem;color:var(--text-dim)}.comp-price{font-size:2.25rem;font-weight:800;font-family:var(--font-heading);margin-bottom:.5rem;color:var(--text-main)}.comp-savings{font-size:.8rem;font-weight:700;color:#10b981;background:#dcfce7;padding:.25rem .6rem;border-radius:6px;display:inline-block}.item-list{margin:1.5rem 0;border-top:1px solid rgba(0,0,0,.05);padding-top:1.5rem;flex:1}.item-row{display:flex;justify-content:space-between;margin-bottom:.75rem;font-size:.9rem}.item-name{color:var(--text-main);font-weight:500}.item-brand{color:var(--text-dim);font-size:.75rem}.uploader{border:2px dashed #cbd5e1;border-radius:var(--radius-xl);padding:3.5rem 2rem;text-align:center;background:#f8fafc;cursor:pointer;transition:all .2s}.uploader:hover{border-color:var(--primary);background:#f5f3ff}.uploader i{font-size:3rem;color:var(--primary);margin-bottom:1.5rem;background:#fff;width:80px;height:80px;display:inline-flex;align-items:center;justify-content:center;border-radius:20px;box-shadow:0 10px 15px -3px #0000000d}.btn{width:100%;padding:1.15rem;border-radius:16px;font-weight:700;font-size:1rem;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);border:none;font-family:var(--font-heading);display:flex;align-items:center;justify-content:center;gap:.75rem}.btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 25px -5px #4f46e54d}.btn-primary:hover{background:#4338ca;transform:translateY(-2px);box-shadow:0 20px 25px -5px #4f46e566}.btn-outline{background:#fff;color:var(--primary);border:2px solid #e2e8f0}.btn-outline:hover{border-color:var(--primary);background:#f5f3ff}.fade-in{animation:fadeIn .5s ease-out}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}[data-step]{display:none}[data-step].active{display:block}.check-anim{width:60px;height:60px;background:#10b981;color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.5rem;margin:0 auto 1.5rem;animation:pop .5s cubic-bezier(.34,1.56,.64,1)}@keyframes pop{0%{transform:scale(0)}to{transform:scale(1)}}