:root{--primary: #C41E3A;--primary-dark: #9B1530;--primary-light: #E8294F;--sidebar-bg: #1B1B2F;--sidebar-hover: #2D2D44;--sidebar-active:#C41E3A;--bg: #F4F5F7;--bg-card: #FFFFFF;--text: #1A202C;--text-muted: #718096;--border: #E2E8F0;--border-dark: #CBD5E0;--success: #38A169;--warning: #D69E2E;--danger: #E53E3E;--info: #3182CE;--radius: 8px;--shadow: 0 1px 3px rgba(0,0,0,.12), 0 1px 2px rgba(0,0,0,.08);--shadow-md: 0 4px 6px rgba(0,0,0,.1), 0 2px 4px rgba(0,0,0,.08);--transition: .18s ease;--sidebar-w: 240px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:14px;color:var(--text);background:var(--bg);line-height:1.5}body.login-body{background:radial-gradient(circle at top left,rgba(196,30,58,.18),transparent 32%),radial-gradient(circle at bottom right,rgba(27,27,47,.35),transparent 36%),linear-gradient(135deg,#0f1117,#17181f 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var(--transition)}.tab-btn.active{color:var(--primary);border-bottom-color:var(--primary)}.tab-btn:hover{color:var(--text)}.upload-zone{border:2px dashed var(--border-dark);border-radius:var(--radius);padding:40px;text-align:center;cursor:pointer;transition:all var(--transition);background:var(--bg)}.upload-zone:hover,.upload-zone.drag-over{border-color:var(--primary);background:#c41e3a0a}.upload-zone-icon{font-size:40px;margin-bottom:12px}.upload-zone-text{font-size:15px;color:var(--text-muted)}@media (max-width: 768px){.sidebar{transform:translate(-100%);transition:transform .22s ease}.sidebar.open{transform:translate(0);box-shadow:16px 0 40px #00000038}.sidebar-backdrop{display:block;position:fixed;top:0;right:0;bottom:0;left:0;background:#00000073;z-index:95}.main-content{margin-left:0}.mobile-topbar{display:flex;align-items:center;gap:8px;padding:12px 16px 0}.mobile-menu-button{display:inline-flex}.header{height:auto;padding:12px 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