/* --- GRUNDLAGEN --- */
:root {
    --primary: #0044cc;      /* TekSis Blau */
    --primary-dark: #002a80;
    --accent: #00c4cc;       
    --dark: #1a1a1a;
    --white: #ffffff;
    --gray: #f4f8fb;
    --nav-height: 80px;      /* Höhe der Navigation */
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark);
    background-color: var(--white);
    /* WICHTIG: Damit der Inhalt nicht hinter dem fixierten Header verschwindet */
    padding-top: var(--nav-height); 
    overflow-x: hidden;
}

/* --- STICKY NAVIGATION --- */
nav {
    position: fixed; /* Klebt oben fest */
    top: 0;
    width: 100%;
    height: var(--nav-height);
    background: var(--white);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 5%;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05); /* Leichter Schatten wie bei der Moschee */
    z-index: 1000;
}

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 2px;
    z-index: 1002;
}

.nav-links {
    display: flex;
    list-style: none;
    width: 40%;
    justify-content: space-around;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--dark);
    font-weight: 500;
    font-size: 1rem;
    transition: color 0.3s ease;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--primary);
}

/* Button im Menü */
.btn-cta {
    background: var(--primary);
    color: white !important;
    padding: 10px 25px;
    border-radius: 5px;
    transition: background 0.3s;
}
.btn-cta:hover { background: var(--primary-dark); }

/* --- HAMBURGER MENU ICON --- */
.burger {
    display: none; /* Auf Desktop unsichtbar */
    cursor: pointer;
    z-index: 1002; /* Muss über dem ausklappenden Menü liegen */
}

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

/* --- MOBILE ANSICHT (Handy & Tablet) --- */
@media screen and (max-width: 768px) {
    .nav-links {
        position: fixed;
        right: 0px;
        top: 0px;
        height: 100vh; /* Volle Bildschirmhöhe */
        background-color: var(--white);
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        width: 100%; /* Vollbild Overlay */
        transform: translateX(100%); /* Versteckt (nach rechts geschoben) */
        transition: transform 0.4s ease-in-out;
        box-shadow: -5px 0 15px rgba(0,0,0,0.1);
        z-index: 1001;
    }

    .nav-links li {
        margin: 25px 0;
        opacity: 0; /* Für Fade-In Effekt */
    }

    .nav-links a {
        font-size: 1.5rem; /* Größere Schrift auf Handy */
    }

    .burger {
        display: block; /* Zeigen */
    }
}

/* --- KLASSEN FÜR JAVASCRIPT ANIMATION --- */
/* Menü hereinholen */
.nav-active {
    transform: translateX(0%);
}

/* Links sanft einblenden */
@keyframes navLinkFade {
    from { opacity: 0; transform: translateX(50px); }
    to { opacity: 1; transform: translateX(0); }
}

/* Burger zu X animieren */
.toggle .line1 {
    transform: rotate(-45deg) translate(-5px, 6px);
    background-color: var(--primary);
}
.toggle .line2 {
    opacity: 0;
}
.toggle .line3 {
    transform: rotate(45deg) translate(-5px, -6px);
    background-color: var(--primary);
}

/* --- LAYOUT BOXEN (aus deinem alten Design) --- */
header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 80px 20px;
    text-align: center;
}
.container { max-width: 1100px; margin: 0 auto; padding: 60px 20px; }
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 40px; align-items: center; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 30px; }
.card { background: var(--white); padding: 30px; border-radius: 12px; border: 1px solid #eee; box-shadow: 0 5px 15px rgba(0,0,0,0.03); }
footer { background: var(--dark); color: #aaa; text-align: center; padding: 40px 20px; }
footer a { color: white; text-decoration: none; margin: 0 10px; }
input, textarea { width: 100%; padding: 12px; margin-bottom: 20px; border: 1px solid #ccc; border-radius: 5px; }

/* Preis Karte */
.price-card { text-align: center; border-top: 5px solid var(--primary); }
.price { font-size: 2.5rem; font-weight: bold; margin: 20px 0; }
.features-list { list-style: none; padding: 0; margin-bottom: 30px; }
.features-list li { padding: 10px 0; border-bottom: 1px solid #eee; }