* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: system-ui, -apple-system, sans-serif;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 25px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 28px;
    font-weight: 700;
}

.heart-icon {
    width: 24px;
    height: 24px;
}

nav ul {
    display: flex;
    gap: 32px;
    list-style: none;
}

nav a {
    text-decoration: none;
    color: #4B4B4B;
}

.hero {
    padding: 80px 0;
    text-align: left;
}

h1 {
    font-size: 72px;
    font-weight: 700;
    color: white;
    margin-bottom: 24px;
    line-height: 1.2;
    font-weight:bolder;
}

.highlight {
    color: #2563EB;
}

.hero p {
    font-size: 24px;
    color: #666;
    margin-bottom: 32px;
    max-width: 600px;
}

.cta-button {
    background-color: #2563EB;
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 20px;
    cursor: pointer;
    transition: background-color 0.3s;
    text-decoration: none;
    display: inline-block;
    margin-top: 20px;
}

.cta-button:hover {
    background-color: #1d4ed8;
}

body {
    font-family: Arial, sans-serif;
    background-color: #1a1a1a;
    color: #ffffff;
    margin: 0;
    padding: 20px;
    line-height: 1.6;
}

.questionnaire {
    max-width: auto;
    margin: 0 auto;
}

.question-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    border-bottom: 1px solid #333;
    padding: 12px 0;
}

.question {
    padding-right: 20px;
}

.options {
    display: flex;
    gap: 15px;
    align-items: center;
}

select {
    background-color: #333;
    color: #ffffff;
    border: 1px solid #444;
    padding: 8px;
    border-radius: 4px;
    width: 100%;
}

button {
    background-color: #2563EB;
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.3s;
    margin-top: 10px;
}

button:hover {
    background-color: #1d4ed8;
    transform: scale(1.05);
}

button:active {
    background-color: #1e40af;
    transform: scale(0.98);
}

button:focus {
    outline: none;
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.5);
}

/* Results page specific styles */
.results-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 100px);
    padding: 20px;
}

.result-card {
    background-color: #2d2d2d;
    padding: 40px;
    border-radius: 16px;
    max-width: 600px;
    width: 100%;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.result-card h2 {
    font-size: 32px;
    margin-bottom: 24px;
    color: #ffffff;
}

.risk-score {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 16px;
    padding: 12px;
    border-radius: 8px;
}

.risk-message {
    font-size: 18px;
    line-height: 1.6;
    margin-bottom: 24px;
}

.result-card.high-risk .risk-score {
    background-color: #dc2626;
    color: white;
}

.result-card.moderate-risk .risk-score {
    background-color: #d97706;
    color: white;
}

.result-card.low-risk .risk-score {
    background-color: #059669;
    color: white;
}