:root {
    --primary-color: #2196F3;    /* Blau */
    --primary-dark: #1976D2;     /* Dunkleres Blau */
    --primary-light: #E3F2FD;    /* Helles Blau */
    --accent-color: #2196F3;     /* Akzentfarbe Blau */
    --text-dark: #2c3e50;        /* Dunkelgrau für Text */
    --text-light: #607d8b;       /* Hellgrau für Text */
    --background-light: #f8f9fa;
    --white: #ffffff;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 8px rgba(0,0,0,0.12);
    --radius-sm: 12px;
    --radius-md: 20px;
    --radius-lg: 28px;
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
}

/* Reset und Basis-Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background: var(--background-light);
    color: var(--text-dark);
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header Styles */
.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: var(--white);
    box-shadow: var(--shadow-md);
    z-index: 1000;
    padding: var(--spacing-md) var(--spacing-xl);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
}

/* Logo */
.logo {
    margin-right: var(--spacing-xl);
}

.logo a {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

/* Navigation Links */
.nav-links {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    align-items: center;
    flex: 1;
}

.nav-links li:not(:last-child) {
    margin-right: var(--spacing-lg);
}

/* Login Button nach rechts schieben */
.nav-links li:last-child {
    margin-left: auto;
}

.nav-links a {
    color: var(--text-dark);
    text-decoration: none;
    font-size: 1.1rem;
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

/* Login Button Styling */
.login-button {
    background: var(--primary-color) !important;
    color: var(--white) !important;
    border-radius: var(--radius-lg) !important;
    padding: var(--spacing-md) var(--spacing-lg) !important;
    box-shadow: var(--shadow-sm);
    font-weight: 600;
}

/* Burger Menu */
.burger {
    display: none;
    cursor: pointer;
    margin-left: var(--spacing-lg);
}

.burger div {
    width: 25px;
    height: 3px;
    background-color: var(--primary-color);
    margin: 5px;
    transition: all 0.3s ease;
    border-radius: 3px;
}

/* Mobile Navigation */
@media screen and (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: var(--spacing-lg);
        box-shadow: var(--shadow-md);
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links li,
    .nav-links li:not(:last-child),
    .nav-links li:last-child {
        margin: var(--spacing-sm) 0;
        width: 100%;
    }

    .burger {
        display: block;
    }

    .burger.active .line1 {
        transform: rotate(-45deg) translate(-5px, 6px);
    }

    .burger.active .line2 {
        opacity: 0;
    }

    .burger.active .line3 {
        transform: rotate(45deg) translate(-5px, -6px);
    }
}

/* Footer */
.modern-footer {
    background: linear-gradient(135deg, var(--primary-color), #1a2634);
    color: white;
    padding: var(--footer-padding) 2rem 1rem;
}

/* Rest der Footer-Styles bleiben gleich... */

/* Responsive Navigation */
@media (max-width: 768px) {
    .login-button {
        width: 100%;
        justify-content: center;
        margin-top: 1rem;
    }
}

/* Abstand für den fixed Header */
main {
    padding-top: 80px;
}