:root{--primary: #2970DB;--primary-dark: #1c54a8;--primary-light: #4c8df5;--bg: #ffffff;--bg-secondary: #f8f8f8;--bg-card: #ffffff;--text: #1a1a1a;--text-muted: #666666;--text-light: #999999;--border: #e5e5e5;--border-hover: #d0d0d0;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .08);--shadow-md: 0 4px 12px rgba(0, 0, 0, .1);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .12);--spacing-xs: .5rem;--spacing-sm: 1rem;--spacing-md: 1.5rem;--spacing-lg: 2rem;--spacing-xl: 3rem;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 24px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:var(--bg);color:var(--text);line-height:1.6}#app{min-height:100vh}.logo-img{height:50px;width:auto;object-fit:contain;max-width:100%}.nav-logo,.logo{display:inline-block!important;background-image:url(/reactbar_logo.png)!important;background-size:contain!important;background-repeat:no-repeat!important;background-position:left center!important;color:transparent!important;font-size:0!important;text-indent:-9999px!important;overflow:hidden!important;width:170px!important;height:60px!important;vertical-align:middle!important;cursor:pointer!important}@media(max-width:600px){.logo-img{height:34px}.nav-logo,.logo{height:50px!important;width:150px!important}}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.75rem 1.5rem;border:none;border-radius:var(--radius-md);font-size:1rem;font-weight:500;cursor:pointer;transition:all .2s;text-decoration:none}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-md)}.btn-secondary{background:var(--bg-secondary);color:var(--text);border:1px solid var(--border)}.btn-secondary:hover{background:var(--bg);border-color:var(--border-hover)}.btn-google{background:#fff;color:var(--text);border:1px solid var(--border);padding:.875rem 1.5rem;font-weight:500}.btn-google:hover{background:var(--bg-secondary);box-shadow:var(--shadow-md)}.btn-google img{width:20px;height:20px}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:var(--spacing-md);box-shadow:var(--shadow-sm);transition:all .2s}.card:hover{box-shadow:var(--shadow-md);border-color:var(--border-hover)}.input{width:100%;padding:.875rem 1rem;border:1px solid var(--border);border-radius:var(--radius-md);font-size:1rem;transition:all .2s;font-family:inherit}.input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #ee46ff1a}.textarea{resize:vertical;min-height:120px}.label{display:block;margin-bottom:.5rem;font-weight:500;color:var(--text);font-size:.875rem}.container{max-width:1200px;margin:0 auto;padding:0 var(--spacing-md)}.app-layout{display:flex;min-height:100vh}.sidebar{width:260px;background:var(--bg-card);border-right:1px solid var(--border);padding:var(--spacing-md);position:fixed;height:100vh;overflow-y:auto}.main-content{flex:1;margin-left:260px;padding:var(--spacing-lg)}.nav-item{display:flex;align-items:center;gap:.75rem;padding:.875rem 1rem;margin-bottom:.5rem;border-radius:var(--radius-md);color:var(--text);text-decoration:none;transition:all .2s;cursor:pointer;border:none;background:transparent;width:100%;font-size:.938rem;font-weight:500}.nav-item:hover{background:var(--bg-secondary)}.nav-item.active{color:var(--primary);font-weight:600;background:transparent}.nav-icon{font-size:1.25rem}.text-muted{color:var(--text-muted)}.text-light{color:var(--text-light)}.mb-1{margin-bottom:var(--spacing-xs)}.mb-2{margin-bottom:var(--spacing-sm)}.mb-3{margin-bottom:var(--spacing-md)}.mb-4{margin-bottom:var(--spacing-lg)}.mt-1{margin-top:var(--spacing-xs)}.mt-2{margin-top:var(--spacing-sm)}.mt-3{margin-top:var(--spacing-md)}.mt-4{margin-top:var(--spacing-lg)}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:fadeIn .3s ease-out}@media(max-width:768px){.sidebar{width:100%;height:auto;position:relative;border-right:none;border-bottom:1px solid var(--border)}.main-content{margin-left:0;padding:var(--spacing-md)}}.spinner{border:3px solid var(--bg-secondary);border-top:3px solid var(--primary);border-radius:50%;width:40px;height:40px;animation:spin 1s linear infinite;margin:2rem auto}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}