:root {
    --primary-color: #3498db;
    --secondary-color: #2ecc71;
    --background-color: #f5f7fa;
    --text-color: #34495e;
    --card-bg-color: #ffffff;
    --hover-color: #2980b9;
}

html, body {
    height: 100%;
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
}

body {
    display: flex;
    flex-direction: column;
}

.container {
    flex: 1;
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.navbar {
    background-color: var(--primary-color);
    box-shadow: 0 2px 4px rgba(0,0,0,.1);
}

.navbar-brand {
    font-weight: 600;
    color: #ffffff !important;
}

.nav-link {
    color: #ffffff !important;
    transition: opacity 0.3s ease;
}

    .nav-link:hover {
        opacity: 0.8;
    }

.footer {
    background-color: var(--primary-color);
    color: #ffffff;
    box-shadow: 0 -2px 4px rgba(0,0,0,.1);
    padding: 1rem 0;
    margin-top: auto;
}

.veri-formu-container {
    max-width: 600px;
    margin: 0 auto;
    max-height: 60vh;
    overflow-y: auto;
    padding: 20px;
    background-color: var(--card-bg-color);
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,.1);
}

.form-group {
    margin-bottom: 20px;
}

input[type="text"] {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
    box-sizing: border-box;
    transition: border-color 0.3s ease;
}

    input[type="text"]:focus {
        border-color: var(--primary-color);
        outline: none;
    }

button {
    background-color: var(--secondary-color);
    color: white;
    padding: 12px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    width: 100%;
    transition: background-color 0.3s ease;
}

    button:hover {
        background-color: #27ae60;
    }

.card {
    background-color: var(--card-bg-color);
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

    .card:hover {
        transform: translateY(-5px);
        box-shadow: 0 6px 12px rgba(0,0,0,.15);
    }

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

    .btn-outline-primary:hover {
        background-color: var(--primary-color);
        color: white;
    }

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

    .btn-primary:hover {
        background-color: var(--hover-color);
        border-color: var(--hover-color);
    }

h1, h2, h3, h4, h5, h6 {
    color: var(--primary-color);
}

@media (max-width: 768px) {
    .container {
        padding: 10px;
    }

    .veri-formu-container {
        width: 100%;
    }
}
.info-icon {
    color: #007bff;
    font-size: 0.9em;
    cursor: pointer;
}

.form-group {
    margin-bottom: 1rem;
}

label {
    margin-bottom: 0.5rem;
}