* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #f0fdf4;
    color: #1f2937;
    transition: all 0.3s ease;
}

body.dark-mode {
    background-color: #162e2b;
    color: #d1fae5;
}

.container {
    max-width: 1200px;
    margin: 10px auto;
    padding: 20px;
}

header {
    text-align: center;
    padding: 20px 0;
    /* position: relative; */
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    color: #15803d;
}

body.dark-mode header h1 {
    color: #34d399;
}

.toggle-mode {
    /* position: absolute;
    top: 20px;
    right: 20px; */
    /* display: inline-flex; */
    position: absolute;
    right: 10px;
    cursor: pointer;
    font-size: 1.2rem;
    padding: 10px 15px;
    background: #15803d;
    color: #ffffff;
    border-radius: 5px;
    transition: background 0.3s, color 0.3s;
}

body.dark-mode .toggle-mode {
    background: #285e61;
    color: #d1fae5;
}

.toggle-mode:hover {
    background: #166534;
}

body.dark-mode .toggle-mode:hover {
    background: #4b8584;
}

.service-card {
    background: #ffffff;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    margin: 20px 0;
    padding: 20px;
    transition: transform 0.3s, background 0.3s, color 0.3s;
}

body.dark-mode .service-card {
    background: #1f3f3c;
    color: #d1fae5;
}

.service-card:hover {
    transform: translateY(-5px);
}

.service-card h2 {
    font-size: 1.8rem;
    color: #15803d;
    margin-bottom: 10px;
}

body.dark-mode .service-card h2 {
    color: #34d399;
}

.service-card p {
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 15px;
}

.service-card ul {
    list-style-type: disc;
    padding-left: 20px;
}

.service-card li {
    font-size: 0.95rem;
    margin: 5px 0;
}

.collapsible {
    cursor: pointer;
    padding: 10px;
    background: #15803d;
    color: #ffffff;
    border-radius: 5px;
    margin-top: 10px;
    text-align: center;
}

body.dark-mode .collapsible {
    background: #285e61;
}

.collapsible:hover {
    background: #166534;
}

body.dark-mode .collapsible:hover {
    background: #4b8584;
}

.content {
    display: none;
    padding: 10px 0;
}

.content.active {
    display: block;
}

@media (max-width: 768px) {
    header h1 {
        font-size: 1.8rem;
    }

    .service-card h2 {
        font-size: 1.5rem;
    }

    .service-card p,
    .service-card li {
        font-size: 0.9rem;
    }

    .toggle-mode {
        font-size: 1rem;
        padding: 8px 12px;
    }
}

@media (max-width: 500px) {
    .service-card {
        padding: 10px;
    }

    .container {
        padding: 10px;
    }
}