:root{--primary-color:#3b82f6;--primary-hover:#2563eb;--bg-color:#f3f4f6;--text-color:#1f2937;--card-bg:#ffffffb3;--border-color:#ffffff80;--font-family:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--danger-color:#ef4444;--danger-hover:#dc2828;--success-color:#10b981}@media (prefers-color-scheme:dark){:root{--bg-color:#111827;--text-color:#f9fafb;--card-bg:#1f2937b3;--border-color:#ffffff1a}}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background-color:var(--bg-color);color:var(--text-color);background-image:radial-gradient(circle at 100% 0,#3b82f626,#0000 40%),radial-gradient(circle at 0 100%,#10b9811a,#0000 40%);background-attachment:fixed;line-height:1.6}.app-container{flex-direction:column;min-height:100vh;display:flex}.app-header{background-color:var(--card-bg);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border-color);z-index:50;padding:1rem 2rem;position:sticky;top:0}.app-header h1{background:linear-gradient(90deg,#3b82f6,#10b981);-webkit-text-fill-color:transparent;letter-spacing:-.025em;-webkit-background-clip:text;font-size:1.5rem;font-weight:700}.app-main{flex:1;justify-content:center;align-items:center;padding:2rem;display:flex}.card{background-color:var(--card-bg);-webkit-backdrop-filter:blur(16px);border:1px solid var(--border-color);border-radius:16px;width:100%;max-width:400px;padding:2.5rem;transition:transform .3s cubic-bezier(.4,0,.2,1),box-shadow .3s cubic-bezier(.4,0,.2,1);box-shadow:0 10px 25px #0000000d,0 4px 10px #0000000d}.card:hover{transform:translateY(-2px);box-shadow:0 20px 30px #0000001a,0 8px 15px #0000000d}.input-group{margin-bottom:1.5rem}.input-group label{color:var(--text-color);opacity:.9;margin-bottom:.5rem;font-size:.9rem;font-weight:500;display:block}.input-group input,.input{border:1px solid var(--border-color);width:100%;color:var(--text-color);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background-color:#ffffff0d;border-radius:10px;outline:none;padding:.875rem 1rem;font-size:1rem;transition:all .2s}.input-group input:focus,.input:focus{border-color:var(--primary-color);background-color:#ffffff1a;box-shadow:0 0 0 3px #3b82f633}.btn{background-color:var(--primary-color);color:#fff;cursor:pointer;border:none;border-radius:10px;justify-content:center;align-items:center;padding:.75rem 1.5rem;font-size:.95rem;font-weight:600;transition:all .2s cubic-bezier(.4,0,.2,1);display:inline-flex;box-shadow:0 4px 6px -1px #3b82f633,0 2px 4px -1px #3b82f61a}.btn:hover{background-color:var(--primary-hover);transform:translateY(-1px);box-shadow:0 6px 8px -1px #3b82f64d,0 4px 6px -1px #3b82f633}.btn:active{transform:translateY(1px);box-shadow:0 1px 2px #3b82f633}.btn-danger{background-color:var(--danger-color);box-shadow:0 4px 6px -1px #ef444433}.btn-danger:hover{background-color:var(--danger-hover);box-shadow:0 6px 8px -1px #ef44444d}.btn-secondary{box-shadow:none;background-color:#6b7280cc}.btn-secondary:hover{background-color:#4b5563e6}.btn-block{width:100%}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.card{animation:.5s ease-out forwards fadeIn}