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

body {
    font-family: 'Roboto Slab', serif;
    background-color: #3e768c;
    color: #000;
    overflow-x: hidden;
}

.container {
    position: relative;
    width: 100%;
    min-width: 1440px;
    height: 1024px;
    margin: 0 auto;
    background-color: #3e768c;
}

/* Top Bar */
.top-bar {
    position: absolute;
    width: 100%;
    height: 54px;
    left: 0;
    top: 0;
    background-color: #161616;
}

/* Title Bar */
.title-bar {
    position: absolute;
    width: 100%;
    height: 80px;
    left: 0;
    top: 54px;
    background-color: #133746;
    display: flex;
    align-items: center;
    justify-content: center;
}

.main-title {
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    font-size: 36px;
    color: white;
    margin: 0;
    text-align: center;
}

/* Step Header */
.step-header {
    position: absolute;
    width: 100%;
    top: 134px;
    left: 0;
    padding: 20px 80px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.step-title {
    font-family: 'Poppins', sans-serif;
    font-weight: 500;
    font-size: 28px;
    color: white;
    margin: 0;
}

/* Content Area */
.content-area {
    position: absolute;
    width: 100%;
    min-height: 706px;
    left: 0;
    top: 216px;
    background-color: #d9d9d9;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 50px;
}

/* Quiz Box */
.quiz-box {
    width: 934px;
    background-color: #191f28;
    border-radius: 4px;
    overflow: hidden;
}

.quiz-header {
    background-color: #3c5964;
    padding: 18px 35px;
}

.quiz-header h3 {
    font-family: 'Roboto Condensed', sans-serif;
    font-size: 24px;
    color: white;
    margin: 0;
    font-weight: 400;
}

.quiz-content {
    padding: 40px 49px 60px 49px;
}

.question-text {
    font-family: 'Roboto Slab', serif;
    font-size: 15px;
    color: white;
    margin-bottom: 30px;
    line-height: 1.5;
}

/* Quiz Options */
.quiz-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.quiz-option {
    display: flex;
    align-items: flex-start;
    gap: 25px;
    cursor: pointer;
    padding: 5px 0;
}

.quiz-option input[type="checkbox"] {
    width: 17px;
    height: 17px;
    border: 1px solid white;
    background-color: transparent;
    margin-top: 3px;
    cursor: pointer;
    flex-shrink: 0;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
}

.quiz-option input[type="checkbox"]:disabled {
    cursor: not-allowed;
    opacity: 0.6;
}

.quiz-option input[type="checkbox"]:checked {
    background-color: white;
}

.quiz-option span {
    font-family: 'Roboto Slab', serif;
    font-size: 15px;
    color: white;
    line-height: 1.4;
}

.quiz-option.correct span {
    font-weight: 400;
}

.quiz-option.show-correct {
    background-color: rgba(13, 124, 19, 0.3);
    border-left: 4px solid #0d7c13;
    padding-left: 20px;
    margin-left: -24px;
    border-radius: 4px;
}

.quiz-option.show-correct span::after {
    content: ' ✓ Correct Answer';
    color: #4ade80;
    font-weight: 700;
    margin-left: 10px;
}

/* Submit Button */
.submit-button {
    margin-top: 25px;
    padding: 8px 24px;
    background-color: #3c5964;
    color: white;
    border: none;
    border-radius: 6px;
    font-family: 'Roboto Condensed', sans-serif;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s, opacity 0.3s;
}

.submit-button:hover:not(:disabled) {
    background-color: #4a6b78;
}

.submit-button:active:not(:disabled) {
    background-color: #2f4650;
}

.submit-button:disabled {
    cursor: not-allowed;
    opacity: 0.5;
}

/* Feedback Message */
.feedback-message {
    margin-top: 20px;
    padding: 15px 20px;
    border-radius: 6px;
    font-family: 'Roboto Slab', serif;
    font-size: 16px;
    line-height: 1.5;
    display: none;
}

.feedback-message.show {
    display: block;
}

.feedback-message.correct {
    background-color: #0d7c13;
    color: white;
}

.feedback-message.incorrect {
    background-color: #820000;
    color: white;
}

/* Navigation Button */
.next-button {
    position: absolute;
    right: 50px;
    bottom: 60px;
    width: 367px;
    height: 78px;
    border-radius: 12px;
    background-color: #000;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    cursor: pointer;
    transition: background-color 0.3s;
}

.next-button:hover {
    background-color: #333;
}

.next-button span {
    font-family: 'Roboto Mono', monospace;
    font-size: 24px;
    color: white;
}

/* Responsive */
@media (max-width: 1440px) {
    .container {
        width: 100%;
        height: auto;
        min-height: 100vh;
    }
    
    .top-bar,
    .title-bar,
    .step-header,
    .content-area {
        width: 100%;
    }
}