/* Base Styles */
body {
    font-family: 'Inter', sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    background-color: #f3f4f6;
    color: #1f2937;
}

.container {
    width: 100%;
    max-width: 600px;
    background: white;
    padding: 3rem;
    border-radius: 16px;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

h1,
h2 {
    color: #111827;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

h1 {
    font-size: 2rem;
}

h2 {
    font-size: 1.5rem;
}

p {
    color: #4b5563;
    line-height: 1.6;
    margin-bottom: 2rem;
}

/* Form Elements */
.form-group {
    margin-bottom: 1.5rem;
    text-align: left;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #374151;
}

input[type="text"],
input[type="email"],
textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.2s, box-shadow 0.2s;
    box-sizing: border-box;
    /* Important for width: 100% */
}

input:focus,
textarea:focus {
    outline: none;
    border-color: #4f46e5;
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

/* MCQ Options */
.options-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.option-item {
    padding: 1rem;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
}

.option-item:hover {
    background-color: #f9fafb;
    border-color: #d1d5db;
}

.option-item.selected {
    background-color: #eef2ff;
    border-color: #4f46e5;
    color: #4f46e5;
    font-weight: 500;
}

/* Buttons */
.btn {
    display: inline-block;
    background-color: #4f46e5;
    color: white;
    padding: 0.75rem 2rem;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.2s, transform 0.1s;
}

.btn:hover {
    background-color: #4338ca;
}

.btn:active {
    transform: scale(0.98);
}

.btn-secondary {
    background-color: white;
    color: #374151;
    border: 1px solid #d1d5db;
    margin-right: 1rem;
}

.btn-secondary:hover {
    background-color: #f3f4f6;
}

/* Progress Bar */
.progress-container {
    height: 6px;
    background-color: #e5e7eb;
    border-radius: 3px;
    margin-bottom: 2rem;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background-color: #4f46e5;
    width: 0%;
    transition: width 0.3s ease;
}

/* Animations */
.fade-in {
    animation: fadeIn 0.4s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hidden {
    display: none;
}