/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', 'Roboto', Arial, sans-serif;
    line-height: 1.6;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e8eb 100%);
    min-height: 100vh;
    color: #333;
}

.container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 2.5rem;
    background: linear-gradient(to bottom, #ffffff 0%, #f8f9fa 100%);
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.container:hover {
    transform: translateY(-5px);
}

.hidden {
    display: none;
}

/* Start Page Styles */
#start-page {
    text-align: center;
    padding: 3rem 2rem;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    position: relative;
    overflow: hidden;
}

/* Logo Styles */
.quiz-logo {
    margin: 0 auto 2rem;
    position: relative;
    width: 80px;
    height: 80px;
    animation: float 3s ease-in-out infinite;
}

.logo-icon {
    background: linear-gradient(135deg, #6a11cb 0%, #2575fc 100%);
    color: white;
    font-size: 3rem;
    font-weight: bold;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 20px;
    box-shadow: 0 10px 20px rgba(106, 17, 203, 0.2);
    transform: rotate(-5deg);
    transition: all 0.3s ease;
}

.quiz-logo:hover .logo-icon {
    transform: rotate(5deg) scale(1.05);
}

/* Heading Styles */
#start-page h1 {
    font-size: 2.8rem;
    margin-bottom: 1.5rem;
    color: #2d3748;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.05);
    font-weight: 700;
    letter-spacing: -0.5px;
}

.highlight {
    color: #6a11cb;
    position: relative;
    display: inline-block;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 5px;
    left: 0;
    width: 100%;
    height: 8px;
    background-color: rgba(106, 17, 203, 0.2);
    z-index: -1;
    border-radius: 4px;
}

.intro-text {
    font-size: 1.2rem;
    color: #4a5568;
    max-width: 600px;
    margin: 0 auto 2.5rem;
    line-height: 1.6;
}

/* Email Card Styles */
.email-card {
    background: white;
    border-radius: 16px;
    padding: 2.5rem;
    max-width: 550px;
    margin: 0 auto 3rem;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05), 0 5px 10px rgba(0, 0, 0, 0.02);
    transform: translateY(0);
    transition: all 0.4s ease;
    border: 1px solid rgba(226, 232, 240, 0.8);
}

.email-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 30px rgba(0, 0, 0, 0.1), 0 10px 10px rgba(0, 0, 0, 0.02);
}

#email-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.input-group {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 16px;
    color: #a0aec0;
    display: flex;
    align-items: center;
    justify-content: center;
}

input[type="email"] {
    padding: 1.2rem 1.2rem 1.2rem 3.5rem;
    width: 100%;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    outline: none;
    background-color: #f8fafc;
    color: #4a5568;
}

input[type="email"]:focus {
    border-color: #6a11cb;
    box-shadow: 0 0 0 3px rgba(106, 17, 203, 0.2);
    background-color: white;
}

input[type="email"]::placeholder {
    color: #a0aec0;
}

button {
    padding: 1rem 2rem;
    background: #3c3c3c;
    color: #ffffff;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    font-size: 1.1rem;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
}

button:hover {
    background: #4a4a4a;
    transform: translateY(-2px);
}

.start-page button {
    background: linear-gradient(135deg, #6a11cb 0%, #2575fc 100%);
    padding: 1.2rem 2rem;
    border-radius: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 700;
    box-shadow: 0 4px 10px rgba(106, 17, 203, 0.3);
}

.start-page button:hover {
    background: linear-gradient(135deg, #5a0cb2 0%, #1a65e6 100%);
    box-shadow: 0 6px 15px rgba(106, 17, 203, 0.4);
}

.pulse-button {
    position: relative;
}

.pulse-button::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 12px;
    background: linear-gradient(135deg, #6a11cb 0%, #2575fc 100%);
    z-index: -1;
    animation: pulse 2s infinite;
    opacity: 0;
}

/* Features Section */
.features {
    display: flex;
    justify-content: center;
    gap: 2.5rem;
    margin-top: 1rem;
}

.feature {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.feature:hover {
    transform: translateY(-5px);
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.feature-text {
    font-size: 1rem;
    font-weight: 600;
    color: #4a5568;
}

/* Animations */
@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 0.7;
    }
    70% {
        transform: scale(1.1);
        opacity: 0;
    }
    100% {
        transform: scale(1.2);
        opacity: 0;
    }
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 7px 14px rgba(50, 50, 93, 0.1), 0 3px 6px rgba(0, 0, 0, 0.08);
    background: #45a049;
}

button:active {
    transform: translateY(1px);
}

/* Slider for Question Navigation */
.question-slider {
    width: 100%;
    margin: 1.5rem 0;
    padding: 1rem;
    background-color: #f8f9fa;
    border-radius: 5px;
    text-align: center;
}

.slider-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-top: 1rem;
}

.slider-container button {
    padding: 0.5rem 1rem;
    background: #3c3c3c;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

.slider-container button:hover {
    background: #4a4a4a;
}

input[type="range"] {
    width: 60%;
    height: 8px;
    -webkit-appearance: none;
    background: #d3d3d3;
    outline: none;
    border-radius: 4px;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    background: #4CAF50;
    cursor: pointer;
    border-radius: 50%;
}

input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background: #4CAF50;
    cursor: pointer;
    border-radius: 50%;
}

/* Quiz Page Styles */
.timer {
    text-align: center;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 2.5rem;
    padding: 1.5rem;
    background: #2d2d2d;
    border-radius: 8px;
    color: #eff2f699;
}

#time {
    color: #4A5568;
    font-family: 'Courier New', monospace;
    background: rgba(255, 255, 255, 0.7);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    margin-left: 0.5rem;
}

.quiz-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
}

/* Media Queries for Responsive Design */
@media (max-width: 992px) {
    .container {
        max-width: 95%;
        padding: 2rem;
        margin: 1.5rem auto;
    }
    
    .quiz-container {
        grid-template-columns: 1.5fr 1fr;
        gap: 1.5rem;
    }
    
    .timer {
        font-size: 1.8rem;
        padding: 1.2rem;
    }
    
    .features {
        flex-wrap: wrap;
        gap: 1.5rem;
    }
}

@media (max-width: 768px) {
    .quiz-container {
        grid-template-columns: 1fr;
    }
    
    .slider-container {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.8rem;
    }
    
    input[type="range"] {
        width: 100%;
        margin: 0.5rem 0;
        order: 3;
    }
    
    .slider-container button {
        width: 45%;
    }
    
    .container {
        padding: 1.5rem;
        margin: 1rem auto;
    }
    
    .navigation-panel {
        margin-top: 1.5rem;
    }
    
    #question-overview {
        grid-template-columns: repeat(5, 1fr);
    }
    
    .option {
        padding: 1rem;
    }
    
    .email-card {
        padding: 1.8rem;
    }
    
    .features {
        flex-direction: column;
        align-items: center;
        gap: 1.5rem;
    }
    
    .feature {
        width: 80%;
        flex-direction: row;
        justify-content: flex-start;
        gap: 1rem;
        padding: 0.8rem;
        background-color: rgba(255, 255, 255, 0.7);
        border-radius: 10px;
        box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 1rem;
        margin: 0.5rem auto;
        border-radius: 6px;
    }
    
    #start-page h1 {
        font-size: 2rem;
    }
    
    .intro-text {
        font-size: 1rem;
    }
    
    .timer {
        font-size: 1.4rem;
        padding: 1rem;
        margin-bottom: 1.5rem;
    }
    
    #time {
        padding: 0.3rem 0.6rem;
    }
    
    .question-container h2 {
        font-size: 1.3rem;
    }
    
    .option {
        padding: 0.8rem;
        margin: 0.5rem 0;
        font-size: 1rem;
    }
    
    #question-overview {
        grid-template-columns: repeat(3, 1fr);
        gap: 0.4rem;
    }
    
    .question-number {
        padding: 0.6rem;
        font-size: 0.9rem;
    }
    
    .slider-container button {
        padding: 0.4rem 0.8rem;
        font-size: 0.9rem;
    }
    
    .question-slider h3 {
        font-size: 1.1rem;
    }
    
    #slider-value {
        font-size: 0.9rem;
    }
    
    .report-item {
        padding: 1rem;
    }
    
    .report-item h3 {
        font-size: 1.1rem;
    }
    
    .answer-comparison {
        grid-template-columns: 1fr;
    }
}

.question-container {
    padding: 1rem;
    background-color: #f8f9fa;
    border-radius: 5px;
}

#options-container {
    margin-top: 1rem;
}
.option {
    padding: 1.2rem;
    margin: 0.8rem 0;
    background-color: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
    color: #333;
    font-size: 1.1rem;
    position: relative;
    overflow: hidden;
}

.option:hover {
    background-color: #3c3c3c;
    transform: translateX(5px);
}

.option.selected {
    background-color: #4CAF50;
    color: #ffffff;
    border-color: #45a049;
}

.option.selected:hover {
    transform: translateX(5px);
    background: #45a049;
}

/* Navigation Panel Styles */
.navigation-panel {
    padding: 1rem;
    background-color: #f8f9fa;
    border-radius: 5px;
}

#question-overview {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
    margin: 1rem 0;
}

.question-number {
    padding: 0.8rem;
    text-align: center;
    background-color: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
    color: #eff2f699;
}

.question-number:hover {
    transform: scale(1.05);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.question-number.visited {
    background-color: #3c3c3c;
    border-color: #525252;
}

.question-number.attempted {
    background-color: #c65d21;
    color: #ffffff;
    border-color: #e66922;
}

/* Report Page Styles */
#report-container {
    margin-top: 2rem;
}

.report-item {
    padding: 1.5rem;
    margin: 1.5rem 0;
    background-color: #ffffff;
    border-radius: 4px;
    border: 1px solid #e0e0e0;
    transition: transform 0.3s ease;
    color: #000000;
}

.report-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 8px rgba(0, 0, 0, 0.08);
}

.report-item h3 {
    color: #000000;
    font-size: 1.3rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #E2E8F0;
}

.report-item h3 {
    margin-bottom: 1rem;
}

.answer-comparison {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.user-answer, .correct-answer {
    padding: 1rem;
    background-color: white;
    border-radius: 5px;
}

.correct-answer {
    background-color: #d4edda;
}

.user-answer.incorrect {
    background-color: #f8d7da;
}