:root{--primary: #4a90d9;--primary-hover: #357abd;--primary-light: #e8f0fe;--success: #28a745;--success-hover: #218838;--danger: #dc3545;--danger-hover: #c82333;--warning: #ffc107;--info: #17a2b8;--text-primary: #1a1a2e;--text-secondary: #6c757d;--text-muted: #adb5bd;--bg-primary: #ffffff;--bg-secondary: #f8f9fa;--bg-tertiary: #e9ecef;--border-color: #dee2e6;--border-radius: 8px;--border-radius-sm: 4px;--border-radius-lg: 12px;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .08);--shadow: 0 2px 8px rgba(0, 0, 0, .1);--shadow-lg: 0 4px 16px rgba(0, 0, 0, .15);--transition: all .2s ease;--font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-mono: "SF Mono", "Fira Code", "Fira Mono", Menlo, Consolas, monospace;--bg-gradient-start: #f0f9ff;--bg-gradient-end: #fafafa;--accent-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%)}.logo-text-group,.top-nav-title-group,.auth-title-group,.selection-title-group{display:flex;flex-direction:column;gap:2px}.logo-brand,.top-nav-brand{font-size:.75rem;font-weight:600;color:var(--primary);letter-spacing:1px;line-height:1.2}.logo-product{font-size:.875rem;font-weight:500;color:var(--text-primary);line-height:1.2}.top-nav-product{font-size:.8rem;font-weight:400;color:var(--text-secondary);line-height:1.2}.auth-brand{font-size:1.1rem;font-weight:600;color:var(--primary);letter-spacing:2px;margin-bottom:0}.auth-product{font-size:1.5rem;font-weight:700;color:var(--text-primary);margin-bottom:4px}.selection-brand{font-size:1.2rem;font-weight:600;color:var(--primary);letter-spacing:2px;margin-bottom:0}.selection-product{font-size:1.5rem;font-weight:700;color:var(--text-primary);margin-bottom:8px}.selection-subtitle{font-size:1rem;color:var(--text-secondary);margin-top:4px}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html{font-size:14px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-family);color:var(--text-primary);background:linear-gradient(135deg,var(--bg-gradient-start) 0%,var(--bg-gradient-end) 100%);background-attachment:fixed;background-size:cover;line-height:1.5;overflow:hidden;min-height:100vh}body:before{content:"";position:fixed;top:0;left:0;width:100%;height:100%;background:radial-gradient(circle at 20% 80%,rgba(74,144,217,.05) 0%,transparent 50%),radial-gradient(circle at 80% 20%,rgba(102,126,234,.05) 0%,transparent 50%);pointer-events:none;z-index:0}body>*{position:relative;z-index:1}a{color:var(--primary);text-decoration:none}a:hover{color:var(--primary-hover);text-decoration:underline}img{max-width:100%;height:auto}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:8px 16px;font-size:.875rem;font-weight:500;border:1px solid transparent;border-radius:var(--border-radius-sm);cursor:pointer;transition:var(--transition);white-space:nowrap;-webkit-user-select:none;user-select:none;font-family:var(--font-family)}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary)}.btn-primary:hover:not(:disabled){background:var(--primary-hover);border-color:var(--primary-hover)}.btn-success{background:var(--success);color:#fff;border-color:var(--success)}.btn-success:hover:not(:disabled){background:var(--success-hover);border-color:var(--success-hover)}.btn-danger{background:var(--danger);color:#fff;border-color:var(--danger)}.btn-danger:hover:not(:disabled){background:var(--danger-hover);border-color:var(--danger-hover)}.btn-outline{background:transparent;color:var(--text-primary);border-color:var(--border-color)}.btn-outline:hover:not(:disabled){background:var(--bg-secondary);border-color:var(--text-muted)}.btn-sm{padding:4px 10px;font-size:.8rem}.btn-xs{padding:2px 8px;font-size:.75rem}.btn-block{display:flex;width:100%}.form-group{margin-bottom:16px}.form-group label{display:block;margin-bottom:4px;font-weight:500;color:var(--text-primary);font-size:.875rem}.form-group label i{margin-right:4px;color:var(--text-secondary)}.form-control{width:100%;padding:8px 12px;font-size:.875rem;border:1px solid var(--border-color);border-radius:var(--border-radius-sm);background:var(--bg-primary);color:var(--text-primary);transition:var(--transition);font-family:var(--font-family)}.form-control:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #4a90d926}.form-control::placeholder{color:var(--text-muted)}.form-control[readonly]{background:var(--bg-secondary)}input[type=text],input[type=email],input[type=password],input[type=number],textarea,select{width:100%;padding:8px 12px;font-size:.875rem;border:1px solid var(--border-color);border-radius:var(--border-radius-sm);background:var(--bg-primary);color:var(--text-primary);transition:var(--transition);font-family:var(--font-family)}input[type=text]:focus,input[type=email]:focus,input[type=password]:focus,input[type=number]:focus,textarea:focus,select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #4a90d926}textarea{resize:vertical}.password-wrapper{position:relative}.password-wrapper input{padding-right:40px}.toggle-password{position:absolute;right:8px;top:50%;transform:translateY(-50%);background:none;border:none;color:var(--text-secondary);cursor:pointer;padding:4px;font-size:.875rem}.toggle-password:hover{color:var(--text-primary)}.form-error{background:#fff5f5;color:var(--danger);padding:8px 12px;border-radius:var(--border-radius-sm);font-size:.8rem;margin-bottom:12px;border:1px solid #fecaca}.form-success{background:#f0fff4;color:var(--success);padding:8px 12px;border-radius:var(--border-radius-sm);font-size:.8rem;margin-bottom:12px;border:1px solid #bbf7d0}#toast-container{position:fixed;bottom:16px;left:16px;z-index:10000;display:flex;flex-direction:column-reverse;gap:8px;pointer-events:none}.toast{display:flex;align-items:center;gap:8px;padding:12px 16px;border-radius:var(--border-radius);background:var(--bg-primary);box-shadow:var(--shadow-lg);border-left:4px solid var(--info);min-width:280px;max-width:400px;pointer-events:auto;animation:toast-slide-in .3s ease;font-size:.875rem}.toast.toast-success{border-left-color:var(--success)}.toast.toast-error{border-left-color:var(--danger)}.toast.toast-warning{border-left-color:var(--warning)}.toast.toast-info{border-left-color:var(--info)}.toast-icon{font-size:1rem;flex-shrink:0}.toast-success .toast-icon{color:var(--success)}.toast-error .toast-icon{color:var(--danger)}.toast-warning .toast-icon{color:var(--warning)}.toast-info .toast-icon{color:var(--info)}.toast-message{flex:1;word-break:break-word}.toast-close{background:none;border:none;color:var(--text-muted);cursor:pointer;padding:2px;font-size:.875rem;flex-shrink:0}.toast-close:hover{color:var(--text-primary)}.toast.toast-exit{animation:toast-slide-out .3s ease forwards}@keyframes toast-slide-in{0%{transform:translate(-100%);opacity:0}to{transform:translate(0);opacity:1}}@keyframes toast-slide-out{0%{transform:translate(0);opacity:1}to{transform:translate(-100%);opacity:0}}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--text-muted);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}.hidden{display:none!important}.text-center{text-align:center}.text-muted{color:var(--text-secondary)}.text-sm{font-size:.8rem}.mt-1{margin-top:4px}.mt-2{margin-top:8px}.mb-1{margin-bottom:4px}.mb-2{margin-bottom:8px}