/* ===== MODERNE NAVIGATION - MODULARE CSS ===== */

/* CSS Custom Properties für einfache Anpassung */
:root {
    --nav-primary-blue: #0170B9;
    --nav-secondary-blue: #002C54;
    --nav-accent-yellow: #EFB509;
    --nav-white: #ffffff;
    --nav-light-gray: #f8f9fa;
    --nav-dark: #222222;
    --nav-shadow: 0 2px 20px rgba(1, 112, 185, 0.2);
    --nav-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --nav-height: 70px;
    --nav-z-index: 1000;
}

/* Navigation Container */
.modern-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    background: var(--nav-primary-blue);
    box-shadow: var(--nav-shadow);
    z-index: var(--nav-z-index);
    transition: var(--nav-transition);
}

.modern-nav.scrolled {
    background: rgba(1, 112, 185, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 30px rgba(1, 112, 185, 0.25);
}

/* Navigation Inner Container */
.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
}

/* Logo */
.nav-logo {
    font-family: 'Merriweather', serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--nav-white);
    text-decoration: none;
    transition: var(--nav-transition);
    z-index: calc(var(--nav-z-index) + 2);
}

.nav-logo:hover {
    color: var(--nav-accent-yellow);
    transform: scale(1.02);
}

/* Navigation Menu */
.nav-menu {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    color: var(--nav-white);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    border-radius: 25px;
    transition: var(--nav-transition);
    position: relative;
    overflow: hidden;
}

.nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

.nav-link:hover::before {
    left: 100%;
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.15);
    color: var(--nav-accent-yellow);
    transform: translateY(-2px);
}

.nav-link i {
    font-size: 1rem;
    opacity: 0.9;
    transition: var(--nav-transition);
}

.nav-link:hover i {
    opacity: 1;
    transform: scale(1.1);
}

/* Highlights Button */
.nav-highlights {
    background: linear-gradient(135deg, var(--nav-accent-yellow), #f4c430);
    color: var(--nav-secondary-blue);
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(239, 181, 9, 0.3);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.nav-highlights::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s ease;
}

.nav-highlights:hover::after {
    left: 100%;
}

.nav-highlights:hover {
    background: linear-gradient(135deg, #f4c430, var(--nav-accent-yellow));
    transform: translateY(-3px);
    box-shadow: 0 6px 25px rgba(239, 181, 9, 0.4);
    color: var(--nav-secondary-blue);
}

/* Hamburger Menu */
.nav-hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    cursor: pointer;
    border-radius: 8px;
    transition: var(--nav-transition);
    z-index: calc(var(--nav-z-index) + 2);
    gap: 4px;
}

.nav-hamburger:hover {
    background: rgba(255, 255, 255, 0.15);
}

.hamburger-line {
    width: 24px;
    height: 3px;
    background: var(--nav-white);
    border-radius: 2px;
    transition: var(--nav-transition);
    transform-origin: center;
    display: block;
}

/* Hamburger Animation */
.nav-hamburger.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-hamburger.active .hamburger-line:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.nav-hamburger.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Mobile Menu Overlay */
.nav-mobile-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: var(--nav-transition);
    z-index: calc(var(--nav-z-index) - 1);
}

.nav-mobile-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Mobile Menu */
.nav-mobile-menu {
    position: fixed;
    top: 0;
    left: -100%;
    width: 320px;
    max-width: 85vw;
    height: 100vh;
    background: var(--nav-white);
    box-shadow: 5px 0 20px rgba(0, 0, 0, 0.1);
    padding: 2rem 0;
    transition: var(--nav-transition);
    z-index: var(--nav-z-index);
    overflow-y: auto;
}

.nav-mobile-menu.active {
    left: 0;
}

/* Mobile Menu Header */
.nav-mobile-header {
    padding: 0 2rem 2rem;
    border-bottom: 1px solid #e9ecef;
    margin-bottom: 1rem;
}

.nav-mobile-logo {
    font-family: 'Merriweather', serif;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--nav-primary-blue);
    text-decoration: none;
}

/* Mobile Menu Items */
.nav-mobile-items {
    padding: 0 1rem;
}

.nav-mobile-item {
    margin-bottom: 0.5rem;
}

.nav-mobile-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1rem;
    color: var(--nav-dark);
    text-decoration: none;
    font-weight: 500;
    border-radius: 12px;
    transition: var(--nav-transition);
    position: relative;
}

.nav-mobile-link:hover {
    background: var(--nav-light-gray);
    color: var(--nav-primary-blue);
    transform: translateX(5px);
}

.nav-mobile-link i {
    font-size: 1.2rem;
    width: 24px;
    text-align: center;
    opacity: 0.7;
    transition: var(--nav-transition);
}

.nav-mobile-link:hover i {
    opacity: 1;
    transform: scale(1.1);
}

/* Mobile Highlights Button */
.nav-mobile-highlights {
    margin: 2rem 1rem 1rem;
    padding: 1rem;
    background: linear-gradient(135deg, var(--nav-accent-yellow), #f4c430);
    color: var(--nav-white);
    border-radius: 12px;
    text-align: center;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(239, 181, 9, 0.3);
    transition: var(--nav-transition);
}

.nav-mobile-highlights:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(239, 181, 9, 0.4);
    color: var(--nav-white);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-inner {
        padding: 0 1rem;
    }
    
    .nav-menu {
        display: none;
    }
    
    .nav-hamburger {
        display: flex;
    }
    
    /* Body scroll lock when menu is open */
    body.nav-menu-open {
        overflow: hidden;
    }
}

@media (max-width: 480px) {
    .nav-inner {
        padding: 0 0.75rem;
    }
    
    .nav-logo {
        font-size: 1.3rem;
    }
    
    .nav-mobile-menu {
        width: 100%;
        max-width: 100%;
    }
}

/* Smooth Page Offset for Fixed Navigation */
.nav-page-content {
    margin-top: var(--nav-height);
}

/* Animation Classes */
.nav-slide-in {
    animation: slideInFromLeft 0.3s ease-out;
}

.nav-slide-out {
    animation: slideOutToLeft 0.3s ease-in;
}

@keyframes slideInFromLeft {
    from {
        transform: translateX(-100%);
    }
    to {
        transform: translateX(0);
    }
}

@keyframes slideOutToLeft {
    from {
        transform: translateX(0);
    }
    to {
        transform: translateX(-100%);
    }
}

/* Focus States for Accessibility */
.nav-link:focus,
.nav-mobile-link:focus,
.nav-hamburger:focus {
    outline: 2px solid var(--nav-accent-yellow);
    outline-offset: 2px;
}

/* Print Styles */
@media print {
    .modern-nav {
        display: none;
    }
    
    .nav-page-content {
        margin-top: 0;
    }
}