/* Global Styles */
body {
    font-family: 'Inter', sans-serif;
    background-color: #F4F4F9;
    color: #333333;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

/* Container Card */
.container {
    background: #FFFFFF;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    width: 90%;
    max-width: 700px;
    padding: 30px;
    text-align: center;
}

/* Heading */
h1 {
    color: #1D3557;
    font-size: 2rem;
    margin-bottom: 25px;
}

/* Progress Bar */
#progress-bar {
    background-color: #E0E0E0;
    border-radius: 12px;
    height: 12px;
    margin-bottom: 25px;
    width: 100%;
}

#progress {
    background-color: #F1C40F;
    height: 100%;
    width: 0%;
    border-radius: 12px;
    transition: width 0.3s ease;
}

/* Options */
.option-btn {
    background-color: #2C6E49;
    border: none;
    border-radius: 12px;
    color: white;
    cursor: pointer;
    font-size: 1rem;
    margin: 10px 0;
    padding: 14px;
    width: 100%;
    transition: background-color 0.3s ease, transform 0.2s;
}

.option-btn:hover {
    background-color: #1D3557;
    transform: scale(1.03);
}

/* Correct and Incorrect States */
.option-btn.correct {
    background-color: #27AE60 !important;
}

.option-btn.incorrect {
    background-color: #E74C3C !important;
}

/* Buttons */
button, #share-btn {
    background-color: #F1C40F;
    border: none;
    border-radius: 12px;
    color: #1D3557;
    cursor: pointer;
    font-size: 1rem;
    margin-top: 20px;
    padding: 14px 28px;
    width: 100%;
    transition: background-color 0.3s ease, transform 0.2s;
    text-decoration: none;
}

button:hover, #share-btn:hover {
    background-color: #D4AC0D;
    transform: scale(1.03);
}

/* Hidden Elements */
.hidden {
    display: none;
}