* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.container {
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    padding: 40px;
    max-width: 500px;
    width: 100%;
}

header {
    text-align: center;
    margin-bottom: 30px;
}

h1 {
    color: #333;
    margin-bottom: 10px;
    font-size: 28px;
}

.subtitle {
    color: #666;
    font-size: 14px;
}

.form-group {
    margin-bottom: 25px;
}

label {
    display: block;
    margin-bottom: 8px;
    color: #444;
    font-weight: 600;
    font-size: 14px;
}

input[type="number"] {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 16px;
    transition: all 0.3s;
}

input[type="number"]:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 10px;
    cursor: pointer;
    transition: background 0.3s;
}

.checkbox-group:hover {
    background: #e9ecef;
}

input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.checkbox-group label {
    margin: 0;
    cursor: pointer;
    flex: 1;
}

.km-group {
    margin-top: 15px;
    padding: 15px;
    background: #fff3cd;
    border-radius: 10px;
    border-left: 4px solid #ffc107;
}

.km-group.hidden {
    display: none;
}

.mappy-link {
    margin-top: 10px;
    padding: 10px;
    background: white;
    border-radius: 5px;
    text-align: center;
}

.mappy-link a {
    color: #667eea;
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    display: inline-block;
    transition: color 0.3s;
}

.mappy-link a:hover {
    color: #764ba2;
    text-decoration: underline;
}

button {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    margin-top: 10px;
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
}

button:active {
    transform: translateY(0);
}

.result {
    margin-top: 30px;
    padding: 25px;
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    border-radius: 15px;
    display: none;
    animation: slideIn 0.4s ease-out;
}

.result.show {
    display: block;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.result-title {
    color: white;
    font-size: 16px;
    margin-bottom: 15px;
    font-weight: 600;
}

.result-details {
    background: rgba(255, 255, 255, 0.95);
    padding: 20px;
    border-radius: 10px;
}

.result-line {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    color: #333;
    border-bottom: 1px solid #e0e0e0;
}

.result-line:last-child {
    border-bottom: none;
    font-size: 20px;
    font-weight: bold;
    color: #f5576c;
    margin-top: 10px;
    padding-top: 15px;
    border-top: 2px solid #f5576c;
}

.info-box {
    background: #e7f3ff;
    border-left: 4px solid #2196F3;
    padding: 15px;
    border-radius: 5px;
    margin-bottom: 25px;
    font-size: 13px;
    color: #1976D2;
}

.info-box strong {
    display: block;
    margin-bottom: 5px;
}

footer {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #e0e0e0;
    text-align: center;
    font-size: 12px;
    color: #666;
}

footer a {
    color: #667eea;
    text-decoration: none;
}

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

@media (max-width: 600px) {
    .container {
        padding: 20px;
    }
    
    h1 {
        font-size: 24px;
    }
}