:root{--color-primary: #5DCAA5;--color-primary-dark: #3FB58A;--color-primary-light: #85D9BC;--color-bg: #ffffff;--color-bg-secondary: #f8f9fa;--color-surface: #ffffff;--color-border: #e2e8f0;--color-text: #1a202c;--color-text-secondary: #4a5568;--color-text-muted: #718096;--color-success: #38a169;--color-warning: #d69e2e;--color-error: #e53e3e;--color-info: #3182ce;--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 16px;--spacing-lg: 24px;--spacing-xl: 32px;--spacing-2xl: 48px;--font-sans: "DM Sans", system-ui, -apple-system, sans-serif;--font-serif: "Fraunces", Georgia, serif;--font-size-xs: .75rem;--font-size-sm: .875rem;--font-size-md: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--font-size-3xl: 1.875rem;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--radius-full: 9999px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px rgba(0, 0, 0, .07);--shadow-lg: 0 10px 15px rgba(0, 0, 0, .1);--sidebar-width: 64px;--topbar-height: 56px}[data-theme=dark]{--color-bg: #0f1117;--color-bg-secondary: #1a1d27;--color-surface: #1e2130;--color-border: #2d3148;--color-text: #f0f4f8;--color-text-secondary: #a0aec0;--color-text-muted: #718096}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden}body{font-family:var(--font-sans);background-color:var(--color-bg);color:var(--color-text);line-height:1.6;min-height:100vh;overflow-x:hidden}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}button{cursor:pointer;font-family:var(--font-sans)}img{max-width:100%;display:block}#root{min-height:100vh}.dashboard-layout{display:flex;min-height:100vh}.dashboard-sidebar-desktop{display:flex}.dashboard-main{margin-left:var(--sidebar-width);flex:1;display:flex;flex-direction:column;min-height:100vh}.dashboard-topbar{height:var(--topbar-height);border-bottom:1px solid var(--color-border);display:flex;align-items:center;padding:0 var(--spacing-lg);background:var(--color-surface);position:sticky;top:0;z-index:40}.topbar-title{font-family:var(--font-serif);font-weight:700;font-size:var(--font-size-lg);color:var(--color-primary)}.dashboard-content{flex:1;padding:var(--spacing-xl);background:var(--color-bg)}.page{max-width:1200px}.page-loading{display:flex;align-items:center;justify-content:center;min-height:100vh;color:var(--color-text-muted)}@keyframes spin{to{transform:rotate(360deg)}}.auth-layout{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--color-bg-secondary);padding:24px}.auth-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-xl);padding:40px;width:100%;max-width:440px;box-shadow:var(--shadow-lg)}.auth-logo{text-align:center;margin-bottom:32px}.auth-logo .brand-name{font-size:1.75rem}.landing-layout{min-height:100vh;display:flex;flex-direction:column}.landing-nav{display:flex;align-items:center;justify-content:space-between;padding:0 48px;height:64px;border-bottom:1px solid var(--color-border);background:var(--color-surface);position:sticky;top:0;z-index:100}.nav-links{display:flex;align-items:center;gap:24px;font-size:var(--font-size-sm)}.nav-links a{color:var(--color-text-secondary);text-decoration:none}.nav-links a:hover{color:var(--color-text);text-decoration:none}.brand-name{font-family:var(--font-serif);font-size:1.5rem;font-weight:700;color:var(--color-primary);text-decoration:none}.brand-name:hover{text-decoration:none}.landing-footer{border-top:1px solid var(--color-border);padding:20px 48px;display:flex;align-items:center;gap:24px;font-size:var(--font-size-sm);color:var(--color-text-muted);margin-top:auto}.landing-footer a{color:var(--color-text-muted)}.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--spacing-md)}@media (max-width: 768px){:root{--sidebar-width: 0px}.dashboard-layout{flex-direction:column}.dashboard-sidebar-desktop{display:none}.dashboard-main{margin-left:0;padding-bottom:64px;min-width:0;width:100%}.dashboard-content{padding:var(--spacing-md);min-width:0;width:100%}.page{min-width:0;width:100%}.card{min-width:0}.metrics-grid{grid-template-columns:repeat(2,1fr)}.landing-nav{padding:0 20px}.landing-footer{padding:16px 20px;flex-wrap:wrap;gap:12px}.auth-card{padding:28px 24px}}.composer-grid{display:grid;grid-template-columns:1fr 300px;gap:24px}@media (max-width: 768px){.composer-grid{grid-template-columns:1fr}.composer-grid .composer-sidebar{order:-1}}@media (max-width: 480px){.metrics-grid{grid-template-columns:1fr 1fr}.dashboard-content{padding:12px}.page{max-width:100%;min-width:0}}.mobile-bottom-nav{display:none}@media (max-width: 768px){.mobile-bottom-nav{display:flex;position:fixed;bottom:0;left:0;right:0;height:60px;background:var(--color-surface);border-top:1px solid var(--color-border);z-index:50;align-items:center;justify-content:space-around;padding:0 8px}}:root{--teal-50: #edfaf5;--teal-100: #d0f3e5;--teal-200: #a3e8cf;--teal-300: #70d8b6;--teal-400: #5DCAA5;--teal-500: #3fb58a;--teal-600: #319e76;--teal-700: #268463;--teal-800: #1e6a50;--teal-900: #175440;--gray-50: #f8f9fa;--gray-100: #f1f3f5;--gray-200: #e9ecef;--gray-300: #dee2e6;--gray-400: #ced4da;--gray-500: #adb5bd;--gray-600: #868e96;--gray-700: #495057;--gray-800: #343a40;--gray-900: #212529;--platform-twitter: #1DA1F2;--platform-facebook: #1877F2;--platform-instagram: #E4405F;--platform-linkedin: #0A66C2;--platform-tiktok: #010101;--platform-youtube: #FF0000;--platform-pinterest: #BD081C;--platform-reddit: #FF4500;--platform-threads: #101010;--platform-bluesky: #0085FF;--platform-mastodon: #6364FF;--platform-google: #4285F4}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-sm);padding:8px 16px;border-radius:var(--radius-md);font-size:var(--font-size-sm);font-weight:500;border:none;cursor:pointer;transition:background .15s,opacity .15s,transform .1s;white-space:nowrap;text-decoration:none}.btn:active{transform:scale(.98)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--color-primary-dark)}.btn-secondary{background:var(--color-bg-secondary);color:var(--color-text);border:1px solid var(--color-border)}.btn-secondary:hover:not(:disabled){background:var(--color-border)}.btn-ghost{background:transparent;color:var(--color-text-secondary)}.btn-ghost:hover:not(:disabled){background:var(--color-bg-secondary)}.btn-danger{background:var(--color-error);color:#fff}.btn-sm{padding:4px 10px;font-size:var(--font-size-xs)}.btn-lg{padding:12px 24px;font-size:var(--font-size-md)}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--spacing-lg)}.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--spacing-md)}.card-title{font-size:var(--font-size-lg);font-weight:600;color:var(--color-text)}.input{width:100%;padding:8px 12px;border:1px solid var(--color-border);border-radius:var(--radius-md);font-family:var(--font-sans);font-size:var(--font-size-sm);color:var(--color-text);background:var(--color-bg);transition:border-color .15s,box-shadow .15s;outline:none}.input:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px #5dcaa533}.input::placeholder{color:var(--color-text-muted)}.input-label{display:block;font-size:var(--font-size-sm);font-weight:500;color:var(--color-text-secondary);margin-bottom:4px}.input-error{border-color:var(--color-error)}.input-error-msg{font-size:var(--font-size-xs);color:var(--color-error);margin-top:4px}.badge{display:inline-flex;align-items:center;padding:2px 8px;border-radius:var(--radius-full);font-size:var(--font-size-xs);font-weight:500}.badge-green{background:#d0f3e5;color:#319e76}.badge-red{background:#fed7d7;color:#c53030}.badge-yellow{background:#fefcbf;color:#b7791f}.badge-blue{background:#bee3f8;color:#2b6cb0}.badge-gray{background:var(--color-bg-secondary);color:var(--color-text-muted)}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;padding:var(--spacing-md)}.modal{background:var(--color-surface);border-radius:var(--radius-xl);padding:var(--spacing-xl);width:100%;max-width:520px;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow-lg)}.modal-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--spacing-lg)}.modal-title{font-size:var(--font-size-xl);font-weight:600}.skeleton{background:linear-gradient(90deg,var(--color-bg-secondary) 25%,var(--color-border) 50%,var(--color-bg-secondary) 75%);background-size:200% 100%;animation:shimmer 1.5s infinite;border-radius:var(--radius-md)}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--spacing-2xl);text-align:center;color:var(--color-text-muted)}.empty-state-icon{width:48px;height:48px;margin-bottom:var(--spacing-md);opacity:.4}.empty-state-title{font-size:var(--font-size-lg);font-weight:600;color:var(--color-text-secondary);margin-bottom:var(--spacing-sm)}