:root{--bg:#fff;--bg-subtle:#f8f9fb;--bg-muted:#f1f3f5;--border:#e2e5e9;--border-light:#eef0f3;--text:#1a1a2e;--text-secondary:#5c6370;--text-muted:#8b919a;--primary:#2563eb;--primary-hover:#1d4ed8;--primary-light:#eff6ff;--accent:#6366f1;--success:#10b981;--danger:#ef4444;--danger-hover:#dc2626;--radius-sm:6px;--radius:10px;--radius-lg:16px;--radius-xl:24px;--shadow-sm:0 1px 2px rgba(0,0,0,.05);--shadow:0 2px 8px rgba(0,0,0,.06);--shadow-md:0 4px 16px rgba(0,0,0,.08);--shadow-lg:0 8px 32px rgba(0,0,0,.1);--font:"Inter",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;--font-mono:"JetBrains Mono","Fira Code",Consolas,monospace;--transition:150ms ease}*,:after,:before{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}img{max-width:100%;height:auto}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 20px;border:none;border-radius:var(--radius);font:inherit;font-size:14px;font-weight:600;cursor:pointer;transition:all var(--transition);text-decoration:none!important;line-height:1.4}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-hover)}.btn-secondary{background:var(--bg);color:var(--text);border:1px solid var(--border)}.btn-secondary:hover:not(:disabled){background:var(--bg-muted);border-color:#ccc}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover:not(:disabled){background:var(--danger-hover)}.btn-ghost{background:transparent;color:var(--text-secondary)}.btn-ghost:hover:not(:disabled){background:var(--bg-muted)}.btn-lg{padding:14px 28px;font-size:16px;border-radius:var(--radius-lg)}.btn-sm{padding:6px 14px;font-size:13px}.btn-icon{padding:8px;border-radius:var(--radius-sm);background:transparent;border:1px solid var(--border);color:var(--text-secondary);cursor:pointer}.btn-icon:hover{background:var(--bg-muted)}.input,.select{display:block;width:100%;padding:10px 14px;border:1px solid var(--border);border-radius:var(--radius);font:inherit;font-size:14px;background:var(--bg);color:var(--text);transition:border-color var(--transition),box-shadow var(--transition)}.input:focus,.select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.12)}.input::placeholder{color:var(--text-muted)}.card{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px;transition:box-shadow var(--transition),border-color var(--transition)}.card:hover{box-shadow:var(--shadow-md);border-color:#d0d5dd}.card-active{border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.1)}.badge{display:inline-flex;align-items:center;padding:2px 10px;border-radius:100px;font-size:12px;font-weight:600;letter-spacing:.01em}.badge-default{background:var(--bg-muted);color:var(--text-secondary)}.badge-primary{background:var(--primary-light);color:var(--primary)}.badge-success{background:#ecfdf5;color:var(--success)}.badge-danger{background:#fef2f2;color:var(--danger)}.container{max-width:1200px}.container,.container-sm{margin:0 auto;padding:0 24px}.container-sm{max-width:480px}.container-md{max-width:880px;margin:0 auto;padding:0 24px}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-between{justify-content:space-between}.gap-1{gap:4px}.gap-2{gap:8px}.gap-3{gap:12px}.gap-4{gap:16px}.gap-6{gap:24px}.gap-8{gap:32px}.text-center{text-align:center}.text-sm{font-size:14px}.text-xs{font-size:12px}.text-muted{color:var(--text-muted)}.text-secondary{color:var(--text-secondary)}.text-danger{color:var(--danger)}.mt-1{margin-top:4px}.mt-2{margin-top:8px}.mt-4{margin-top:16px}.mt-6{margin-top:24px}.mt-8{margin-top:32px}.mb-2{margin-top:8px}.mb-4{margin-top:16px}.error{color:var(--danger);font-size:14px;margin-top:8px}.dropdown{position:absolute;top:calc(100% + 6px);right:0;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-lg);min-width:220px;z-index:50;overflow:hidden;animation:dropdown-in .12s ease-out}@keyframes dropdown-in{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}.dropdown-item{display:block;width:100%;text-align:left;padding:10px 16px;border:0;background:transparent;cursor:pointer;font-size:14px;color:var(--text);transition:background var(--transition)}.dropdown-item:hover{background:var(--bg-muted)}.dropdown-item-danger{color:var(--danger)}.dropdown-item-danger:hover{background:#fef2f2}.dropdown-label{padding:8px 16px;font-size:11px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em}.dropdown-divider{border-top:1px solid var(--border-light);margin:4px 0}.topnav{gap:16px;padding:0 24px;height:56px;border-bottom:1px solid var(--border);background:var(--bg);position:-webkit-sticky;position:sticky;top:0;z-index:40}.topnav,.topnav-brand{display:flex;align-items:center}.topnav-brand{font-weight:700;font-size:17px;color:var(--text)!important;text-decoration:none!important;gap:8px}.topnav-sep{color:var(--border);font-size:20px}.topnav-org{font-weight:600;font-size:15px}.topnav-links{display:flex;align-items:center;gap:4px;margin-left:auto}.topnav-link{padding:8px 14px;border-radius:var(--radius);font-size:14px;font-weight:500;color:var(--text-secondary)!important;text-decoration:none!important;transition:all var(--transition)}.topnav-link:hover{background:var(--bg-muted);color:var(--text)!important}.hero{padding:80px 24px 60px;text-align:center;background:linear-gradient(180deg,#f0f4ff,#fff)}.hero h1{font-size:clamp(2.5rem,5vw,3.75rem);font-weight:800;line-height:1.1;margin:0 0 20px;letter-spacing:-.02em;background:linear-gradient(135deg,var(--text) 40%,var(--primary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero p{font-size:clamp(1.05rem,2vw,1.25rem);color:var(--text-secondary);max-width:640px;margin:0 auto 32px;line-height:1.7}.hero-cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}.hero-badge{display:inline-flex;align-items:center;gap:6px;background:var(--primary-light);color:var(--primary);padding:6px 16px;border-radius:100px;font-size:13px;font-weight:600;margin-bottom:24px}.screenshot-section{padding:40px 24px 80px}.screenshot-wrapper{max-width:960px;margin:0 auto;border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow-lg),0 0 0 1px rgba(0,0,0,.06);background:var(--bg-muted);aspect-ratio:16/10;display:flex;align-items:center;justify-content:center;position:relative}.screenshot-placeholder{display:flex;flex-direction:column;align-items:center;gap:12px;color:var(--text-muted);font-size:15px}.screenshot-placeholder svg{opacity:.4}.features-section{padding:80px 24px;background:var(--bg)}.features-section h2{text-align:center;font-size:2rem;font-weight:700;margin:0 0 12px}.features-section .subtitle{text-align:center;color:var(--text-secondary);font-size:1.1rem;margin:0 0 48px}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));grid-gap:24px;gap:24px;max-width:1000px;margin:0 auto}.feature-card{padding:28px;border-radius:var(--radius-lg);border:1px solid var(--border-light);background:var(--bg);transition:all var(--transition)}.feature-card:hover{border-color:var(--border);box-shadow:var(--shadow-md);transform:translateY(-2px)}.feature-icon{width:44px;height:44px;border-radius:var(--radius);display:flex;align-items:center;justify-content:center;margin-bottom:16px;font-size:22px}.feature-card h3{margin:0 0 8px;font-size:17px;font-weight:600}.feature-card p{margin:0;color:var(--text-secondary);font-size:14px;line-height:1.6}.apps-section{padding:80px 24px;background:var(--bg-subtle)}.apps-section h2{text-align:center;font-size:2rem;font-weight:700;margin:0 0 48px}.apps-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));grid-gap:24px;gap:24px;max-width:1000px;margin:0 auto}.app-card{background:var(--bg);border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:32px;text-align:center;transition:all var(--transition)}.app-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}.app-icon{font-size:48px;margin-bottom:16px}.app-card h3{margin:0 0 8px;font-size:1.2rem;font-weight:600}.app-card p{margin:0;color:var(--text-secondary);font-size:14px}.cta-section{padding:80px 24px;text-align:center}.cta-section h2{font-size:2rem;font-weight:700;margin:0 0 12px}.cta-section p{color:var(--text-secondary);font-size:1.1rem;margin:0 0 32px}.footer{padding:32px 24px;border-top:1px solid var(--border-light);text-align:center;color:var(--text-muted);font-size:13px}.auth-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg-subtle);padding:24px}.auth-card{width:100%;max-width:420px;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-xl);padding:40px 36px;box-shadow:var(--shadow-md)}.auth-card h1{margin:0 0 8px;font-size:24px;font-weight:700;text-align:center}.auth-card .auth-subtitle{text-align:center;color:var(--text-secondary);font-size:14px;margin:0 0 28px}.auth-card form{display:flex;flex-direction:column;gap:14px}.auth-card .auth-footer{text-align:center;margin-top:20px;font-size:14px;color:var(--text-secondary)}.auth-card .auth-footer a{font-weight:500}.workspace-list{list-style:none;padding:0;margin:0}.workspace-item{display:flex;align-items:center;gap:14px;padding:16px 20px;border:1px solid var(--border-light);border-radius:var(--radius);margin-bottom:8px;transition:all var(--transition);text-decoration:none!important;color:var(--text)!important}.workspace-item:hover{border-color:var(--border);box-shadow:var(--shadow);background:var(--bg-subtle)}.workspace-avatar{width:40px;height:40px;border-radius:var(--radius);background:var(--primary-light);color:var(--primary);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;flex-shrink:0}.workspace-info{flex:1 1;min-width:0}.workspace-info strong{display:block;font-size:15px}.workspace-meta{font-size:13px;color:var(--text-muted)}.files-header{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:24px}.files-header h1{margin:0;font-size:22px}.files-table{width:100%;border-collapse:collapse}.files-table th{text-align:left;padding:10px 12px;font-size:12px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em;border-bottom:1px solid var(--border)}.files-table td{padding:14px 12px;border-bottom:1px solid var(--border-light);font-size:14px;vertical-align:middle}.files-table tr{transition:background var(--transition)}.files-table tbody tr:hover{background:var(--bg-subtle)}.file-name-cell{gap:12px}.file-icon,.file-name-cell{display:flex;align-items:center}.file-icon{width:36px;height:36px;border-radius:var(--radius-sm);justify-content:center;font-size:18px;flex-shrink:0}.file-icon-doc{background:#e8f0fe;color:#185abc}.file-icon-sheet{background:#e6f4ea;color:#137333}.file-icon-slide{background:#fce8e6;color:#c5221f}.file-icon-other{background:var(--bg-muted);color:var(--text-muted)}.file-name{font-weight:500;color:var(--text)!important;text-decoration:none!important}.file-name:hover{color:var(--primary)!important}.file-ext{font-size:12px}.file-ext,.files-empty{color:var(--text-muted)}.files-empty{text-align:center;padding:60px 24px}.files-empty-icon{font-size:48px;margin-bottom:12px;opacity:.4}.member-row{gap:12px;padding:14px 0;border-bottom:1px solid var(--border-light)}.member-avatar,.member-row{display:flex;align-items:center}.member-avatar{width:36px;height:36px;border-radius:50%;background:var(--bg-muted);justify-content:center;font-weight:600;font-size:14px;color:var(--text-secondary);flex-shrink:0}.member-info{flex:1 1;min-width:0}.member-name{font-weight:500;font-size:14px}.member-email{font-size:13px;color:var(--text-muted)}.invite-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg-subtle);padding:24px}.invite-card{text-align:center;max-width:440px;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-xl);padding:48px 36px;box-shadow:var(--shadow-md)}.invite-icon{font-size:48px;margin-bottom:16px}.invite-card h1{font-size:22px;margin:0 0 8px}.invite-card p{color:var(--text-secondary);font-size:15px;margin:0 0 28px}@media (max-width:640px){.hero{padding:48px 16px 40px}.hero h1{font-size:2rem}.topnav{padding:0 16px;gap:10px}.topnav-links{gap:0}.topnav-link{padding:6px 8px;font-size:13px}.files-header{flex-direction:column;align-items:stretch}.apps-grid,.features-grid{grid-template-columns:1fr}.auth-card{padding:28px 20px}}