.modern-header{position:fixed;top:0;left:0;right:0;z-index:1000;background:hsla(0,0%,100%,.85);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid #eaeaea;transition:background .3s ease}.modern-nav-container{max-width:1100px;margin:0 auto;padding:.875rem 2rem;display:flex;align-items:center;justify-content:space-between}.modern-logo{display:flex;align-items:center;gap:.625rem;text-decoration:none;font-size:1.1rem;font-weight:600;color:#111;letter-spacing:-.3px}.modern-header .logo-icon{display:flex;align-items:center;justify-content:center;width:32px;height:32px;background:#111;border-radius:8px;color:#fff;flex-shrink:0}.modern-header .logo-icon svg{width:24px;height:24px}.modern-nav-actions{display:flex;align-items:center;gap:.75rem}.modern-header .user-greeting{font-size:.9rem;color:#666;margin-right:.25rem}.modern-header .user-greeting strong{color:#111;font-weight:600}.modern-header .modern-btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.55rem 1.125rem;border-radius:8px;font-size:.9rem;font-weight:500;text-decoration:none;transition:all .18s ease;cursor:pointer;border:none;font-family:inherit;white-space:nowrap}.modern-header .modern-btn-outline{background:transparent;color:#111;border:1px solid #d1d1d1}.modern-header .modern-btn-outline:hover{border-color:#111;background:#f5f5f5}.modern-header .modern-btn-text{background:transparent;color:#111}.modern-header .modern-btn-text:hover{color:#111;background:#f5f5f5}.modern-header .modern-btn-ghost{background:transparent;color:#111;border:1px solid transparent}.modern-header .modern-btn-ghost:hover{background:#f5f5f5}.modern-header .modern-btn-primary{background:#217517;color:#fff}.modern-header .modern-btn-primary:hover{background:#2a8f1e;transform:translateY(-1px)}.modern-nav-actions button.modern-btn-primary{background:#111}.modern-nav-actions button.modern-btn-primary:hover{background:#333}@media (max-width:768px){.modern-nav-actions{gap:.5rem}.modern-header .modern-btn-text{display:none}}@media (max-width:480px){.modern-nav-container{padding:.75rem 1.25rem}}