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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 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;
    padding: 50px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    max-width: 600px;
    width: 100%;
}

h1 {
    font-size: 2.5rem;
    color: #333;
    text-align: center;
    margin-bottom: 10px;
}

.subtitle {
    text-align: center;
    color: #666;
    font-size: 1rem;
    margin-bottom: 40px;
}

.form-section {
    margin-bottom: 30px;
}

.input-group {
    margin-bottom: 35px;
}

label {
    display: block;
    font-size: 1.2rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 12px;
}

select {
    width: 100%;
    padding: 15px;
    font-size: 1.1rem;
    border: 2px solid #ddd;
    border-radius: 10px;
    background: white;
    cursor: pointer;
    transition: border-color 0.3s;
}

select:hover,
select:focus {
    border-color: #667eea;
    outline: none;
}

.slider-container {
    width: 100%;
}

input[type="range"] {
    width: 100%;
    height: 8px;
    border-radius: 5px;
    background: #ddd;
    outline: none;
    -webkit-appearance: none;
    margin-bottom: 15px;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: #667eea;
    cursor: pointer;
    transition: background 0.3s;
}

input[type="range"]::-webkit-slider-thumb:hover {
    background: #5568d3;
}

input[type="range"]::-moz-range-thumb {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: #667eea;
    cursor: pointer;
    border: none;
    transition: background 0.3s;
}

input[type="range"]::-moz-range-thumb:hover {
    background: #5568d3;
}

.slider-labels {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.95rem;
    color: #666;
}

#severity-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: #667eea;
}

button {
    width: 100%;
    padding: 18px;
    font-size: 1.3rem;
    font-weight: 600;
    color: white;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.4);
}

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

#confirmation-area {
    margin-top: 30px;
    padding: 20px;
    background: #f0f7ff;
    border-left: 5px solid #667eea;
    border-radius: 10px;
    font-size: 1.2rem;
    color: #333;
    min-height: 60px;
    display: flex;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s;
}

#confirmation-area.visible {
    opacity: 1;
}

#confirmation-area:empty {
    display: none;
}