.auth-container{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#667eea,#764ba2);padding:var(--spacing-5)}.auth-card{background:var(--color-surface);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);padding:40px;width:100%;max-width:400px}.auth-header{text-align:center;margin-bottom:var(--spacing-8)}.auth-header h1{font-size:28px;font-weight:700;color:var(--color-gray-900);margin:0 0 var(--spacing-2) 0}.auth-header p{color:var(--color-gray-600);font-size:var(--font-size-sm);margin:0}.auth-form h2{font-size:var(--font-size-lg);font-weight:600;color:var(--color-gray-900);margin:0 0 var(--spacing-6) 0;text-align:center}.auth-error{background:#fee2e2;border:1px solid #fecaca;color:#dc2626;padding:var(--spacing-3);border-radius:var(--radius-md);margin-bottom:var(--spacing-4);font-size:var(--font-size-sm)}.auth-success{background:#d1fae5;border:1px solid #a7f3d0;color:#059669;padding:var(--spacing-3);border-radius:var(--radius-md);margin-bottom:var(--spacing-4);font-size:var(--font-size-sm)}.form-group{margin-bottom:var(--spacing-4)}.form-group input{width:100%;padding:var(--spacing-3);border:1px solid var(--color-gray-300);border-radius:var(--radius-md);font-size:var(--font-size-sm);transition:border-color .15s;box-sizing:border-box}.form-group input:focus{outline:none;border-color:#6366f1;box-shadow:0 0 0 3px #6366f11a}.form-group input:disabled{background:var(--color-gray-50);cursor:not-allowed}.auth-button{width:100%;padding:var(--spacing-3);background:#6366f1;color:var(--color-surface);border:none;border-radius:var(--radius-md);font-size:var(--font-size-sm);font-weight:600;cursor:pointer;transition:background .15s;margin-top:var(--spacing-2)}.auth-button:hover:not(:disabled){background:#4f46e5}.auth-button:disabled{background:var(--color-gray-400);cursor:not-allowed}.auth-divider{text-align:center;margin:var(--spacing-6) 0;position:relative}.auth-divider:before{content:"";position:absolute;top:50%;left:0;right:0;height:1px;background:var(--color-gray-200)}.auth-divider span{background:var(--color-surface);padding:0 var(--spacing-3);position:relative;color:var(--color-gray-600);font-size:var(--font-size-xs)}.auth-button-google{width:100%;padding:var(--spacing-3);background:var(--color-surface);color:var(--color-gray-900);border:1px solid var(--color-gray-300);border-radius:var(--radius-md);font-size:var(--font-size-sm);font-weight:500;cursor:pointer;transition:background .15s;display:flex;align-items:center;justify-content:center;gap:var(--spacing-2)}.auth-button-google:hover:not(:disabled){background:var(--color-gray-50)}.auth-button-google:disabled{opacity:.5;cursor:not-allowed}.auth-footer{margin-top:var(--spacing-6);text-align:center}.auth-footer p{color:var(--color-gray-600);font-size:var(--font-size-sm);margin:0}.auth-footer a{color:#6366f1;text-decoration:none;font-weight:500}.auth-footer a:hover{text-decoration:underline}.forgot-password-link{text-align:right;margin-bottom:var(--spacing-4)}.forgot-password-link a{color:#6366f1;text-decoration:none;font-size:var(--font-size-sm);font-weight:500}.forgot-password-link a:hover{text-decoration:underline}.invite-loading{text-align:center;padding:var(--spacing-6) 0}.invite-loading .spinner{width:40px;height:40px;border:3px solid var(--color-gray-200);border-top-color:#6366f1;border-radius:50%;margin:0 auto var(--spacing-4);animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.invite-loading p{color:var(--color-gray-600);font-size:var(--font-size-sm);margin:0}.invite-welcome{text-align:center;margin-bottom:var(--spacing-6)}.invite-welcome h2{font-size:var(--font-size-lg);font-weight:600;color:var(--color-gray-900);margin:0 0 var(--spacing-3) 0}.invite-welcome p{color:var(--color-gray-600);font-size:var(--font-size-sm);margin:0 0 var(--spacing-2) 0}.invite-welcome strong{color:#6366f1;font-weight:600}.invite-continue{display:block;text-align:center;text-decoration:none}.invite-error{text-align:center}.invite-error h2{font-size:var(--font-size-lg);font-weight:600;color:#dc2626;margin:0 0 var(--spacing-3) 0}.invite-error p{color:var(--color-gray-600);font-size:var(--font-size-sm);margin:0 0 var(--spacing-2) 0}.invite-context{background:#eff6ff;border:1px solid #bfdbfe;border-radius:var(--radius-md);padding:var(--spacing-3);margin-bottom:var(--spacing-4);text-align:center}.invite-context p{color:#1e40af;font-size:var(--font-size-sm);margin:0}.invite-context strong{font-weight:600}.desktop-required{min-height:100vh;background:linear-gradient(135deg,#667eea,#764ba2);display:flex;align-items:center;justify-content:center;padding:var(--spacing-5);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif}.desktop-required-container{background:var(--color-surface);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);padding:48px var(--spacing-8);max-width:600px;width:100%;text-align:center}.desktop-required-icon{color:#667eea;margin-bottom:var(--spacing-6);display:flex;justify-content:center}.desktop-required-title{font-size:32px;font-weight:700;color:#1a202c;margin:0 0 var(--spacing-4) 0;line-height:1.2}.desktop-required-description{font-size:var(--font-size-lg);color:#4a5568;line-height:1.6;margin:0 0 var(--spacing-8) 0}.desktop-required-features{text-align:left;margin-bottom:var(--spacing-8)}.desktop-required-features h2{font-size:var(--font-size-lg);font-weight:600;color:#2d3748;margin:0 0 var(--spacing-4) 0;text-align:center}.desktop-required-features ul{list-style:none;padding:0;margin:0}.desktop-required-features li{padding:var(--spacing-2) 0;color:#4a5568;line-height:1.5}.desktop-required-features strong{color:#2d3748;font-weight:600}.desktop-required-instructions{margin-bottom:var(--spacing-8)}.desktop-required-instructions h2{font-size:var(--font-size-lg);font-weight:600;color:#2d3748;margin:0 0 var(--spacing-6) 0}.access-options{display:grid;gap:var(--spacing-4);margin-top:var(--spacing-4)}.access-option{background:#f7fafc;border:1px solid var(--color-gray-200);border-radius:var(--radius-lg);padding:var(--spacing-4);text-align:left}.access-option h3{font-size:var(--font-size-base);font-weight:600;color:#2d3748;margin:0 0 var(--spacing-2) 0}.access-option p{font-size:var(--font-size-sm);color:#4a5568;margin:0 0 var(--spacing-1) 0;line-height:1.4}.access-option small{font-size:var(--font-size-xs);color:#718096;font-style:italic}.desktop-required-footer{border-top:1px solid var(--color-gray-200);padding-top:var(--spacing-6);margin-top:var(--spacing-8)}.desktop-required-footer p{font-size:var(--font-size-sm);color:#718096;margin:0;line-height:1.5}@media(max-width:480px){.desktop-required{padding:var(--spacing-4)}.desktop-required-container{padding:var(--spacing-8) var(--spacing-6)}.desktop-required-title{font-size:28px}.desktop-required-description{font-size:var(--font-size-base)}.access-option h3{font-size:15px}.access-option p{font-size:13px}}.psb-overlay{position:fixed;inset:0;z-index:1000;background:#00000080;display:flex;align-items:center;justify-content:center;animation:psb-fade-in .15s ease-out}@keyframes psb-fade-in{0%{opacity:0}to{opacity:1}}.psb-modal{position:relative;width:80vw;height:85vh;max-width:1400px;max-height:900px;background:#fff;border-radius:12px;box-shadow:0 20px 60px #0003;display:flex;flex-direction:column;overflow:hidden;animation:psb-slide-up .2s ease-out}@keyframes 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var(--color-gray-100);flex-shrink:0}.psb-preview-info{display:flex;flex-direction:column;gap:4px}.psb-preview-title{font-size:16px;font-weight:600;color:var(--color-gray-800);margin:0}.psb-preview-status{font-size:12px;color:var(--color-gray-500)}.psb-preview-project{font-size:12px;color:var(--color-gray-400)}.psb-preview-content{flex:1;overflow-y:auto;padding:24px}.psb-preview-text{font-family:var(--font-sans);font-size:var(--font-size-sm);line-height:1.7;color:var(--color-gray-700)}.psb-preview-paragraph{margin:0 0 1em;white-space:pre-wrap;word-wrap:break-word}.psb-preview-paragraph:last-child{margin-bottom:0}.psb-preview-content::-webkit-scrollbar{width:6px}.psb-preview-content::-webkit-scrollbar-track{background:transparent}.psb-preview-content::-webkit-scrollbar-thumb{background:var(--color-gray-300);border-radius:3px}.psb-empty-state,.psb-loading-state,.psb-error-state{flex:1;display:flex;align-items:center;justify-content:center;padding:40px}.psb-empty-state p,.psb-loading-state 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