:root{--color-primary: #1a56db;--color-primary-hover: #1e40af;--color-bg: #f8fafc;--color-surface: #ffffff;--color-border: #e2e8f0;--color-text: #1e293b;--color-text-muted: #64748b;--color-success: #16a34a;--color-warning: #d97706;--color-danger: #dc2626;--entry-doctors: #8b5cf6;--entry-events: #06b6d4;--entry-leave: #22c55e;--entry-leave-planned: #84cc16;--entry-holiday: #9ca3af;--entry-sickness: #ef4444;--entry-travel: #3b82f6;--entry-oncall: #f97316;--entry-support: #ec4899;--entry-custom: #6b7280}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:var(--color-bg);color:var(--color-text);line-height:1.5}button{cursor:pointer;border:none;font-family:inherit;font-size:inherit}input,select{font-family:inherit;font-size:inherit}.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.5rem 1rem;border-radius:.375rem;font-weight:500;font-size:.875rem;transition:all .15s ease}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover{background:var(--color-primary-hover)}.btn-secondary{background:var(--color-surface);color:var(--color-text);border:1px solid var(--color-border)}.btn-secondary:hover{background:#f1f5f9}.btn-danger{background:var(--color-danger);color:#fff}.btn-danger:hover{background:#b91c1c}.btn-sm{padding:.25rem .5rem;font-size:.75rem}