:root {
    --color-primary: #ff6600;
    --color-success: #009900;
    --color-info: #0066cc;
    --color-bg: #f5f5f5;
    --color-text: #333333;
    --color-accent: #004080;
    --color-accent-light: #0099cc;
    --color-footer-bg: #222222;
    --color-footer-text: #ffffff;
    --color-link: #ff6600;
}

body {
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* Hero Banner */
.hero-banner {
    position: relative;
    height: 60vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
    color: #ffffff;
    text-align: center;
}

.hero-banner .overlay {
    position: absolute;
    top:0; left:0; width:100%; height:100%;
    background-color: rgba(0,0,0,0.3);
}

.hero-banner h1 {
    font-size: 3rem;
    font-weight: bold;
}

.hero-banner p.lead {
    font-size: 1.2rem;
}

/* Buttons */
.btn-primary {
    background-color: var(--color-primary) !important;
    border-color: var(--color-primary) !important;
    color: #fff !important;
}

.btn-success {
    background-color: var(--color-success) !important;
    border-color: var(--color-success) !important;
    color: #fff !important;
}

.btn-info {
    background-color: var(--color-info) !important;
    border-color: var(--color-info) !important;
    color: #fff !important;
}

.btn-outline-primary {
    color: var(--color-primary) !important;
    border-color: var(--color-primary) !important;
}

.btn-outline-primary:hover {
    background-color: var(--color-primary) !important;
    color: #fff !important;
}

/* Accordion */
.accordion-button {
    background-color: var(--color-accent);
    color: #fff;
}
.accordion-button:not(.collapsed) {
    background-color: var(--color-accent-light);
    color: #fff;
}

/* Footer */
footer, .footer {
    background-color: var(--color-footer-bg);
    color: var(--color-footer-text);
    padding: 20px 0;
    text-align: center;
}

footer a, .footer a {
    color: var(--color-link);
    text-decoration: none;
}

footer a:hover, .footer a:hover {
    text-decoration: underline;
}

/* Drei-Spalten Bereich */
.row.mt-5.text-center h3 {
    color: var(--color-accent);
    margin-bottom: 15px;
}

.row.mt-5.text-center p {
    color: #555555;
}

.card:hover {
    transform: translateY(-5px);
    transition: 0.3s ease;
}