* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Roboto', sans-serif;
}

body {
    background-color: #f8f9fa;
    color: #2c3e50;
    line-height: 1.6;
}

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

header {
    background-color: #ffffff;
    padding: 25px 30px;
    border-radius: 10px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
    margin-bottom: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 1px solid #e9ecef;
    position: sticky;
    top: 0;
    z-index: 100;
}

h1 {
    color: #1a237e;
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.score-container {
    display: flex;
    align-items: center;
    gap: 25px;
}

.score {
    font-size: 20px;
    font-weight: 500;
    color: #1a237e;
    background-color: #f8f9fa;
    padding: 8px 16px;
    border-radius: 6px;
    border: 1px solid #e9ecef;
}

.btn {
    background-color: #1a237e;
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn:hover {
    background-color: #283593;
    transform: translateY(-1px);
}

.checklist-container {
    margin-top: 100px;
    position: relative;
}

.checklist-section {
    background-color: #ffffff;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
    border: 1px solid #e9ecef;
    display: none;
    animation: fadeIn 0.3s ease;
}

.checklist-section.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.navigation-buttons {
    display: flex;
    justify-content: space-between;
    margin-top: 30px;
    padding: 20px 0;
}

.nav-btn {
    background-color: #1a237e;
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-btn:hover {
    background-color: #283593;
    transform: translateY(-1px);
}

.nav-btn:disabled {
    background-color: #ccc;
    cursor: not-allowed;
    transform: none;
}

h2 {
    color: #1a237e;
    font-size: 22px;
    margin-bottom: 25px;
    padding-bottom: 12px;
    border-bottom: 2px solid #e9ecef;
    font-weight: 600;
    position: sticky;
    top: 0;
    background: #ffffff;
    z-index: 10;
    padding: 10px 0;
    margin-top: -25px;
    margin-left: -25px;
    margin-right: -25px;
    padding-left: 25px;
    padding-right: 25px;
}

.subsection {
    margin-bottom: 25px;
    position: relative;
    padding-top: 60px;
    background: #ffffff;
}

h3 {
    color: #283593;
    font-size: 19px;
    margin-bottom: 18px;
    font-weight: 500;
    position: sticky;
    top: 60px;
    background: #ffffff;
    z-index: 9;
    padding: 10px 0;
    border-bottom: 1px solid #e9ecef;
    margin-top: -60px;
    padding-top: 10px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.checklist-item {
    margin-bottom: 15px;
    padding: 15px;
    background-color: #f8f9fa;
    border-radius: 8px;
    border: 1px solid #e9ecef;
    transition: all 0.3s ease;
}

.checklist-item:hover {
    background-color: #ffffff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

h4 {
    color: #1a237e;
    font-size: 17px;
    margin-bottom: 12px;
    font-weight: 500;
}

.questions {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.question {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px;
    border-radius: 4px;
    transition: background-color 0.2s ease;
}

.question:hover {
    background-color: #f1f3f5;
}

.question label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-size: 15px;
    color: #2c3e50;
    width: 100%;
}

input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: #1a237e;
}

/* Progress indicator */
.progress-indicator {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: #e9ecef;
    z-index: 101;
}

.progress-bar {
    height: 100%;
    background: #1a237e;
    width: 0;
    transition: width 0.3s ease;
}

/* Section navigation */
.section-nav {
    position: fixed;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    background: #ffffff;
    padding: 15px;
    border-radius: 8px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
    z-index: 99;
    max-height: 80vh;
    overflow-y: auto;
}

.section-nav ul {
    list-style: none;
}

.section-nav li {
    margin-bottom: 10px;
}

.section-nav a {
    color: #1a237e;
    text-decoration: none;
    font-size: 14px;
    display: block;
    padding: 5px 10px;
    border-radius: 4px;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.section-nav a:hover,
.section-nav a.active {
    background-color: #f8f9fa;
    color: #283593;
}

/* Modal styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: #ffffff;
    margin: 50px auto;
    padding: 35px;
    width: 85%;
    max-width: 800px;
    border-radius: 12px;
    position: relative;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.modal-content h2 {
    color: #1a237e;
    font-size: 24px;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 2px solid #e9ecef;
    position: relative;
    top: 0;
    background: #ffffff;
    z-index: 10;
    padding: 0 0 15px 0;
    margin-top: 0;
    margin-left: 0;
    margin-right: 0;
}

.close {
    position: absolute;
    right: 25px;
    top: 25px;
    font-size: 24px;
    cursor: pointer;
    color: #666;
    transition: color 0.3s ease;
}

.close:hover {
    color: #1a237e;
}

.report-section {
    margin-bottom: 35px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
    border: 1px solid #e9ecef;
}

.report-section h3 {
    color: #1a237e;
    margin-bottom: 18px;
    font-size: 20px;
    position: relative;
    top: 0;
    background: #f8f9fa;
    z-index: 9;
    padding: 0 0 10px 0;
    border-bottom: 1px solid #e9ecef;
    margin-top: 0;
}

.report-section h4 {
    color: #283593;
    margin-bottom: 12px;
    font-size: 18px;
    position: relative;
    top: 0;
    background: #f8f9fa;
    z-index: 8;
    padding: 0;
    border-bottom: none;
    margin-top: 0;
    box-shadow: none;
}

.report-section ul {
    list-style-type: none;
    padding-left: 25px;
    margin-top: 15px;
}

.report-section li {
    margin-bottom: 12px;
    position: relative;
    color: #2c3e50;
    font-size: 15px;
    line-height: 1.5;
}

.report-section li:before {
    content: "•";
    color: #1a237e;
    font-weight: bold;
    position: absolute;
    left: -25px;
}

#downloadReport {
    margin-top: 20px;
    width: 100%;
}

/* Responsive design */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        gap: 20px;
        text-align: center;
        padding: 20px;
    }

    .score-container {
        flex-direction: column;
        width: 100%;
    }

    .score {
        width: 100%;
        text-align: center;
    }

    .btn {
        width: 100%;
    }

    .modal-content {
        width: 95%;
        margin: 20px auto;
        padding: 25px;
    }

    .checklist-container {
        grid-template-columns: 1fr;
    }

    .section-nav {
        display: none;
    }

    h1 {
        font-size: 24px;
    }

    h2 {
        font-size: 20px;
    }

    h3 {
        font-size: 17px;
    }

    h4 {
        font-size: 15px;
    }
}