:root{--primary-color: #800020;--accent-color: #f59e0b;--background-color: #f9fafb;--text-color: #111827;--card-bg: #ffffff;--column-bg: #f9fafb;--column-border: #e5e7eb;--input-bg: #ffffff;--high-priority-color: #800020;--medium-priority-color: #f59e0b;--low-priority-color: #22c55e;--danger-color: #ef4444}*{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(--background-color);color:var(--text-color)}.container{max-width:1400px;margin:0 auto;padding:20px}button{cursor:pointer;border:none;border-radius:6px;padding:10px 20px;font-size:14px;font-weight:500;transition:all .2s}button:hover{opacity:.9;transform:translateY(-1px)}button:active{transform:translateY(0)}button.primary{background:var(--primary-color);color:#fff}button.secondary{background:var(--accent-color);color:#fff}button.success{background:var(--low-priority-color);color:#fff}button.danger{background:var(--danger-color);color:#fff}input,select,textarea{width:100%;padding:10px;border:1px solid var(--column-border);border-radius:6px;font-size:14px;font-family:inherit;background:var(--input-bg)}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #8000201a}.card{background:var(--card-bg);border-radius:8px;padding:20px;box-shadow:0 1px 3px #0000001a;margin-bottom:20px}table{width:100%;border-collapse:collapse}table th{text-align:left;padding:12px;background:var(--column-bg);border-bottom:2px solid var(--column-border);font-weight:600}table td{padding:12px;border-bottom:1px solid var(--column-border)}table tr:hover{background:var(--column-bg)}.alert{padding:12px 20px;border-radius:6px;margin-bottom:15px}.alert-success{background:#d1fae5;color:#065f46;border:1px solid #10b981}.alert-error{background:#fee2e2;color:#991b1b;border:1px solid #ef4444}.alert-warning{background:#fef3c7;color:#92400e;border:1px solid var(--accent-color)}.alert-info{background:#dbeafe;color:#1e40af;border:1px solid #3b82f6}