<style>
   /* Grundstil – hell, freundlich, nordisch */
body {
    font-family: "Segoe UI", Arial, sans-serif;
    margin: 0;
    background: #f3f7fa; /* sehr helles, warmes Blau-Grau */
    color: #2f3b45;
    line-height: 1.7;
}

/* Header – modern, luftig, freundlich */
header {
    background: #f3f7fa;
    padding: 70px 20px;
    text-align: center;
}

header h1 {
    color: #006a9c; /* frisches Nordsee-Blau */
    margin: 0;
    font-size: 3rem;
    font-weight: 600;
}

header p {
    color: #4a5a67;
    margin-top: 12px;
    font-size: 1.2rem;
}

/* Container – zentriert, luftig */
.container {
    flex: 1;        
    padding: 20px;
    margin: 0; 
    margin-top: -35px;
}

/* Überschriften – modern, klar */
h2 {
    color: #006a9c;
    margin-top: 45px;
    font-size: 1.8rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}

/* Info-Boxen – gemütlich, weich, modern */
.info-box {
    background: #ffffff;
    padding: 22px;
    border-radius: 12px;
    margin-top: 15px;
    margin-bottom: 30px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.06); /* weicher Schatten */
    border-left: 5px solid #cfe8f5; /* sanfter Akzent */
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

/* Hover-Effekt – modern, aber dezent */
.info-box:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(0,0,0,0.10);
}

/* Karte */
.map {
    text-align: center;
    margin: 40px 0;
}

.map img {
    width: 100%;
    max-width: 450px;
    border-radius: 12px;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

/* Footer – warm, freundlich */
footer {
    text-align: center;
    padding: 25px;
    background: #f3f7fa;
    margin-top: 50px;
    color: #4a5a67;
    font-size: 1.1rem;
}
/* Layout: Content + Sidebar */
.layout {
    display: flex;
    gap: 30px;
    max-width: 1200px;
    margin: auto;
    padding: 20px;
}

/* Sidebar */
.sidebar {
    width: 260px;
    background: #ffffff;
    padding: 20px;
    border-radius: 14px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.06);
    border-left: 5px solid #cfe8f5;
    height: fit-content;
    position: sticky;
    top: 5px; /* bleibt beim Scrollen sichtbar */
}

/* Sidebar Überschrift */
.sidebar h3 {
    color: #006a9c;
    margin-top: 0;
    margin-bottom: 20px;
    font-size: 1.4rem;
    font-weight: 600;
}

/* Buttons in der Sidebar */
.sidebar .room-link {
    display: block;
    background: #f3f7fa;
    padding: 14px 16px;
    border-radius: 10px;
    margin-bottom: 12px;
    text-decoration: none;
    color: #2f3b45;
    font-size: 1.1rem;
    box-shadow: 0 2px 6px rgba(0,0,0,0.05);
    transition: all 0.2s ease;
}

.sidebar .room-link:hover {
    background: #e6f3fa;
    transform: translateX(4px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.10);
}
.sidebar .room-link.active {
    background: #e6f3fa;
    border-left: 5px solid #006a9c;
    font-weight: 600;
}
.image-grid{
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    justify-items: center;   /* Bilder mittig */
}
.image-grid img {
    width: 100%;
    height: 260px;          /* quadratisch wirkende Höhe */
    object-fit: cover;      /* schöner Zuschnitt */
    border-radius: 16px;    /* leicht abgerundet */
    box-shadow: 0 6px 16px rgba(0,0,0,0.12); /* etwas stärkerer Schatten */
    border: 4px solid #b7d9e8; /* kräftigeres maritimes Hellblau */
}
</style>