* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Segoe UI", sans-serif;
}

body {
    background-color: #030b16;
    background-image: url("../img/bg-watermark.png");
    background-repeat: no-repeat;
    background-position: center 300px;
    background-size: 1400px auto;
    color: #e6f2ff;
    min-height: 100vh;
}

/* HEADER */
.site-header {
    display: flex;
    width: 100%;
    height: 216px;
}

.header-logo {
    width: 325px;
    height: 216px;
    flex-shrink: 0;
}

.header-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.header-hero {
    flex: 1;
    height: 216px;
    background-image: url("../img/hero-header.png");
    background-repeat: no-repeat;
    background-position: left center;
    background-size: 1800px 216px;
    background-color: #030b16;
}

/* LAYOUT */
.main-layout {
    display: flex;
}

/* SIDEBAR */
.sidebar {
    width: 325px;
    padding: 30px 20px;
    background-color: rgba(2, 8, 20, 0.95);
}

.sidebar ul {
    list-style: none;
}

.sidebar li {
    margin-bottom: 12px;
}

.sidebar a {
    color: #e6f2ff;
    text-decoration: none;
    padding: 10px 14px 10px 34px;
    display: block;
    position: relative;
    border-radius: 6px;
}

/* AKTIVER MENÜPUNKT */
.sidebar a.active {
    background: linear-gradient(
        90deg,
        rgba(31, 182, 255, 0.35),
        rgba(31, 182, 255, 0.05)
    );
    color: #ffffff;
    font-weight: 600;
}

.sidebar a.active::after {
    content: "";
    position: absolute;
    left: 0;
    top: 6px;
    bottom: 6px;
    width: 3px;
    background: #1fb6ff;
    border-radius: 2px;
}

.sidebar a:hover {
    background: #0a3d73;
}

/* SUBMENU INDICATOR */
.has-submenu > a::before {
    content: "";
    position: absolute;
    left: 14px;
    top: 50%;
    width: 8px;
    height: 8px;
    border-right: 2px solid #b6dfff;
    border-bottom: 2px solid #b6dfff;
    transform: translateY(-50%) rotate(45deg);
    transition: transform 0.25s ease;
}

.has-submenu.open > a::before {
    transform: translateY(-50%) rotate(225deg);
}

/* SUBMENU */
.has-submenu > .submenu {
    display: none;
    padding-left: 25px;
    margin-top: 6px;
}

.has-submenu.open > .submenu {
    display: block;
}

.submenu li {
    margin-bottom: 6px;
}

.submenu a {
    font-size: 14px;
    color: #b6dfff;
}

/* CONTENT */
.content {
    flex: 1;
    padding: 40px;
    display: grid;
    gap: 30px;
    max-width: 1840px;
    margin: 0;
}

/* CARDS */
.card {
    background: rgba(6, 20, 40, 0.85);
    border: 1px solid rgba(31, 182, 255, 0.12);
    border-radius: 14px;
    padding: 32px;
    backdrop-filter: blur(4px);
}

/* 🔴 NEU: ANLEITUNG – BLOCKSATZ */
.screenshot-text {
    text-align: justify;        /* 🔴 */
}

.screenshot-text p {
    margin-bottom: 12px;        /* 🔴 bessere Lesbarkeit */
}

/* RESPONSIVE */
@media (max-width: 900px) {

    .main-layout {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
    }

    .content {
        padding: 25px;
        max-width: 100%;
    }
}