@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&display=swap');

:root {
    --primary: #2563eb;
    --primary-dark: #1e40af;
    --secondary: #64748b;
    --accent: #10b981;
    --background: #f8fafc;
    --surface: #ffffff;
    --text-main: #1e293b;
    --text-light: #64748b;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --radius: 16px;
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--background);
    color: var(--text-main);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* Header / Nav */
.navbar {
    background: var(--surface);
    box-shadow: var(--shadow-sm);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* Hero Section */
.hero {
    text-align: center;
    margin-bottom: 3rem;
}

.hero h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    color: var(--text-light);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* Steps Indicator */
.steps-container {
    display: flex;
    justify-content: space-between;
    margin-bottom: 4rem;
    position: relative;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.steps-container::before {
    content: '';
    position: absolute;
    top: 25px;
    left: 40px;
    right: 40px;
    height: 3px;
    background: #e2e8f0;
    z-index: 0;
}

.step {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    width: 120px;
}

.step-circle {
    width: 50px;
    height: 50px;
    background: var(--surface);
    border: 3px solid #e2e8f0;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: 600;
    color: var(--text-light);
    transition: all 0.3s ease;
}

.step.active .step-circle {
    border-color: var(--primary);
    background: var(--primary);
    color: white;
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.2);
}

.step.completed .step-circle {
    border-color: var(--accent);
    background: var(--accent);
    color: white;
}

.step-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-light);
    text-align: center;
}

.step.active .step-label {
    color: var(--primary);
    font-weight: 700;
}

.step.completed .step-label {
    color: var(--accent);
    font-weight: 600;
}

/* Main Content Card */
.main-card {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 2.5rem;
    box-shadow: var(--shadow-lg);
}

.section-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.chapters-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.5rem;
}

@media (max-width: 640px) {
    .chapters-grid {
        grid-template-columns: 1fr;
    }
}

/* Question Styling */
.question-container {
    margin-bottom: 2.5rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid #e2e8f0;
}

.question-container:last-of-type {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.question-text {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1.25rem;
    color: var(--text-main);
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
}

.question-number {
    color: var(--primary);
    font-weight: 700;
    min-width: 30px;
}

.options-container {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-left: 30px;
}

.option-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    background: var(--surface);
    user-select: none;
}

.option-item:hover {
    border-color: #cbd5e1;
    transform: translateX(4px);
}

.option-item.selected {
    border-color: var(--primary);
    background: #eff6ff;
    box-shadow: var(--shadow-md);
}

.option-item input[type="radio"],
.option-item input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--primary);
}

.option-label {
    font-weight: 500;
    cursor: pointer;
    flex: 1;
}

/* Action Bar */
.action-bar {
    margin-top: 3rem;
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding-top: 2rem;
    border-top: 1px solid #e2e8f0;
    align-items: center;
}

.btn {
    padding: 0.875rem 2rem;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 1rem;
    border: 2px solid transparent;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 6px -1px rgba(37, 99, 235, 0.2);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(37, 99, 235, 0.3);
}

.btn-secondary {
    background: #f1f5f9;
    color: var(--text-light);
}

.btn-secondary:hover {
    background: #e2e8f0;
}

/* Disclaimer */
.disclaimer {
    margin-bottom: 2rem;
    background: #fffbeb;
    border: 1px solid #fcd34d;
    color: #92400e;
    padding: 1rem;
    border-radius: 10px;
    font-size: 0.9rem;
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
}

.disclaimer i {
    font-size: 1.25rem;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .steps-container {
        flex-wrap: wrap;
        gap: 1rem;
    }
    
    .step {
        width: 80px;
    }
    
    .main-card {
        padding: 1.5rem;
    }
    
    .question-text {
        font-size: 1rem;
    }
    
    .options-container {
        margin-left: 0;
    }
}