:root{--primary: #1a56db;--primary-dark: #1341a0;--primary-light: #ebf0fd;--secondary: #7c3aed;--success: #10b981;--danger: #ef4444;--warning: #f59e0b;--dark: #0f172a;--text: #1e293b;--muted: #64748b;--border: #e2e8f0;--light-bg: #f8fafc;--white: #ffffff;--sidebar-width: 240px}*,*:before,*:after{box-sizing:border-box}html,body{height:100%;margin:0;padding:0;overflow:hidden}body{font-family:Roboto,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:14px;color:var(--text);background:var(--light-bg);-webkit-font-smoothing:antialiased}h1,h2,h3,h4,h5,h6{font-family:Poppins,sans-serif;font-weight:700;color:var(--dark)}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#dadce0;border-radius:10px}::-webkit-scrollbar-thumb:hover{background:#bdc1c6}a{color:var(--primary);text-decoration:none}.avatar-circle{display:inline-flex;align-items:center;justify-content:center;border-radius:50%;font-family:Poppins,sans-serif;font-weight:700;color:var(--white);flex-shrink:0}.avatar-circle.av-blue{background:#3b82f6}.avatar-circle.av-green{background:#10b981}.avatar-circle.av-orange{background:#f59e0b}.avatar-circle.av-purple{background:#8b5cf6}.avatar-circle.av-red{background:#ef4444}.avatar-circle.av-teal{background:#14b8a6}.avatar-circle.av-pink{background:#ec4899}.avatar-circle.av-indigo{background:#6366f1}.btn-primary-espace{display:inline-flex;align-items:center;gap:6px;padding:9px 18px;background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);color:var(--white);border:none;border-radius:8px;font-family:Poppins,sans-serif;font-size:.85rem;font-weight:600;cursor:pointer;transition:all .2s;box-shadow:0 2px 8px #1a56db40}.btn-primary-espace:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 4px 14px #1a56db59}.btn-primary-espace:disabled{opacity:.6;cursor:not-allowed}