:root{--primary: #0D9488;--primary-dark: #0F766E;--sidebar-bg: #0F766E;--text-primary: #111827;--text-secondary: #6B7280;--text-muted: #9CA3AF;--bg-page: #F8FAFC;--bg-card: #FFFFFF;--border: #E5E7EB;--shadow-sm: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);--shadow-md: 0 4px 16px rgba(0,0,0,.08);--radius: 12px;--radius-sm: 8px;--blue: #3B82F6;--red: #EF4444}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background:var(--bg-page);color:var(--text-primary);line-height:1.5}h1,h2,h3,h4{font-weight:600;color:var(--text-primary)}button{cursor:pointer;font-family:inherit}input,select,textarea{font-family:inherit}