:root{--bg-primary:#0f1117;--bg-secondary:#1a1d27;--bg-tertiary:#242836;--border-color:#2d3245;--text-primary:#e8eaf0;--text-secondary:#9ca3b4;--text-muted:#6b7280;--accent-blue:#3b82f6;--accent-blue-hover:#2563eb;--accent-green:#10b981;--accent-red:#ef4444;--accent-purple:#8b5cf6;--error-bg:#ef44441f}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg-primary);color:var(--text-primary);justify-content:center;align-items:center;min-height:100vh;padding:20px;font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;display:flex;overflow-x:hidden}.signup-container{z-index:1;width:100%;max-width:480px;position:relative}.signup-bg{z-index:0;width:100%;height:100%;position:fixed;top:0;left:0;overflow:hidden}.bg-shape{filter:blur(80px);opacity:.15;border-radius:50%;animation:20s ease-in-out infinite float;position:absolute}.shape-1{background:var(--accent-blue);width:400px;height:400px;animation-delay:0s;top:-100px;right:-100px}.shape-2{background:var(--accent-purple);width:300px;height:300px;animation-delay:5s;bottom:-50px;left:-50px}.shape-3{background:var(--accent-green);width:250px;height:250px;animation-delay:10s;top:50%;left:50%;transform:translate(-50%,-50%)}@keyframes float{0%,to{transform:translate(0)scale(1)}33%{transform:translate(30px,-30px)scale(1.1)}66%{transform:translate(-20px,20px)scale(.9)}}.signup-card{backdrop-filter:blur(20px);border:1px solid var(--border-color);background:#1a1d27cc;border-radius:20px;padding:40px;animation:.5s ease-out slideUp;box-shadow:0 25px 50px #0000004d}@keyframes slideUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.signup-header{text-align:center;margin-bottom:32px}.logo-icon{background:linear-gradient(135deg, var(--accent-blue), var(--accent-purple));color:#fff;border-radius:16px;justify-content:center;align-items:center;width:64px;height:64px;margin-bottom:20px;display:inline-flex;box-shadow:0 10px 30px #3b82f64d}.header-text h1{color:var(--text-primary);margin-bottom:8px;font-size:28px;font-weight:700}.header-text p{color:var(--text-secondary);font-size:14px}.signup-form{flex-direction:column;gap:16px;display:flex}.form-group{flex-direction:column;gap:8px;display:flex}.form-group.full-width,.form-group.half-width{flex:1}.form-label{color:var(--text-secondary);font-size:13px;font-weight:500}.input-wrapper{align-items:center;display:flex;position:relative}.input-icon{color:var(--text-muted);pointer-events:none;transition:color .2s;position:absolute;left:14px}.form-input{background:var(--bg-tertiary);border:1px solid var(--border-color);width:100%;color:var(--text-primary);border-radius:10px;padding:12px 14px 12px 44px;font-family:inherit;font-size:14px;transition:all .2s}.form-input:focus{border-color:var(--accent-blue);outline:none;box-shadow:0 0 0 3px #3b82f626}.form-input:focus~.input-icon,.form-input:focus+.input-icon{color:var(--accent-blue)}.form-input::placeholder{color:var(--text-muted)}.form-input.error{border-color:var(--accent-red);box-shadow:0 0 0 3px var(--error-bg)}.password-wrapper{align-items:center;display:flex;position:relative}.password-wrapper .form-input{width:100%;padding-right:44px}.toggle-password{color:var(--text-muted);cursor:pointer;z-index:2;-webkit-tap-highlight-color:transparent;background:0 0;border:none;border-radius:6px;justify-content:center;align-items:center;padding:8px;transition:all .2s;display:flex;position:absolute;right:12px}.toggle-password:hover{background:var(--bg-primary);color:var(--text-primary)}.eye-icon{transition:opacity .2s}.terms-wrapper{align-items:flex-start;gap:10px;display:flex}.checkbox-wrapper{cursor:pointer;user-select:none;flex-shrink:0;align-items:flex-start;gap:8px;display:flex}.checkbox-wrapper input[type=checkbox]{opacity:0;cursor:pointer;position:absolute}.checkmark{background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:4px;flex-shrink:0;justify-content:center;align-items:center;width:18px;height:18px;transition:all .2s;display:inline-flex}.checkbox-wrapper input[type=checkbox]:checked~.checkmark{background:var(--accent-blue);border-color:var(--accent-blue)}.checkmark:after{content:"";border:2px solid #fff;border-width:0 2px 2px 0;width:5px;height:10px;margin-bottom:2px;display:none;transform:rotate(45deg)}.checkbox-wrapper input[type=checkbox]:checked~.checkmark:after{display:block}.terms-text{color:var(--text-secondary);font-size:12px;line-height:1.5}.terms-text a{color:var(--accent-blue);text-decoration:none}.terms-text a:hover{text-decoration:underline}.agreement-error{color:var(--accent-red);min-height:16px;font-size:12px}.btn-signup{background:linear-gradient(135deg, var(--accent-blue), var(--accent-blue-hover));color:#fff;cursor:pointer;border:none;border-radius:10px;justify-content:center;align-items:center;gap:10px;margin-top:8px;padding:14px;font-size:15px;font-weight:600;transition:all .2s;display:flex;position:relative;overflow:hidden}.btn-signup:before{content:"";background:#fff3;border-radius:50%;width:0;height:0;transition:width .6s,height .6s;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.btn-signup:hover:before{width:300px;height:300px}.btn-signup:hover{transform:translateY(-2px);box-shadow:0 10px 25px #3b82f666}.btn-signup:active{transform:translateY(0)}.btn-signup:disabled{opacity:.7;cursor:not-allowed}.btn-text,.btn-loader{z-index:1;position:relative}.spinner{border:2px solid #ffffff4d;border-top-color:#fff;border-radius:50%;width:20px;height:20px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.alert{border-radius:10px;align-items:center;gap:10px;padding:12px 14px;animation:.3s ease-out slideDown;display:flex}.alert-error{background:var(--error-bg);color:var(--accent-red);border:1px solid #ef444433}.alert-text{font-size:13px;font-weight:500}@keyframes slideDown{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.divider{text-align:center;color:var(--text-muted);align-items:center;margin:24px 0;font-size:12px;display:flex}.divider:before,.divider:after{content:"";border-bottom:1px solid var(--border-color);flex:1}.divider span{padding:0 12px}.signup-footer{text-align:center;border-top:1px solid var(--border-color);margin-top:24px;padding-top:24px}.signup-footer p{color:var(--text-secondary);font-size:13px}.signup-footer a{color:var(--accent-blue);font-weight:500;text-decoration:none;transition:color .2s}.signup-footer a:hover{color:var(--accent-blue-hover);text-decoration:underline}@media (width<=480px){.signup-card{padding:28px 24px}.header-text h1{font-size:24px}.form-group.half-width{flex:100%}}