/* Allgemeine Styles für alle Seiten */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;600;700&display=swap');

:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --light-color: #ecf0f1;
    --dark-color: #2c3e50;
    --text-color: #333;
    --data-color: #2980b9;
    --kickboxing-color: #c0392b;
    --about-color: #27ae60;
    --contact-color: #8e44ad;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--light-color);
    min-height: 100vh;
}

a {
    text-decoration: none;
    color: var(--secondary-color);
    transition: color 0.3s ease;
}

a:hover {
    color: var(--accent-color);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.header {
    text-align: center;
    padding: 40px 0;
}

.header h1 {
    font-size: 3rem;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.subtitle {
    font-size: 1.5rem;
    color: var(--secondary-color);
    margin-bottom: 20px;
}

.navbar {
    background-color: var(--primary-color);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar ul {
    display: flex;
    justify-content: center;
    list-style-type: none;
}

.navbar li {
    margin: 0 15px;
}

.navbar a {
    color: var(--light-color);
    font-weight: 600;
    padding: 10px 15px;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.navbar a:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.footer {
    text-align: center;
    padding: 20px;
    margin-top: 40px;
    background-color: var(--dark-color);
    color: var(--light-color);
}

.footer a {
    color: var(--light-color);
    text-decoration: underline;
}

.section {
    padding: 60px 0;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 40px;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background-color: var(--secondary-color);
    margin: 15px auto;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header h1 {
        font-size: 2.5rem;
    }
    
    .subtitle {
        font-size: 1.2rem;
    }
    
    .navbar ul {
        flex-direction: column;
        align-items: center;
    }
    
    .navbar li {
        margin: 10px 0;
    }
}

/* Animation für alle Seiten */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.8s ease forwards;
}

/* Button Styles */
.btn {
    display: inline-block;
    padding: 12px 25px;
    background-color: var(--secondary-color);
    color: white;
    border-radius: 5px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn:hover {
    background-color: var(--accent-color);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* Zurück-nach-oben Button */
.back-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: var(--accent-color);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 99;
}

.back-to-top.visible {
    opacity: 1;
}