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

:root {
    --primary: #4A5568;
    --primary-dark: #2D3748;
    --accent: #5B7FA3;
    --accent-light: #7B9FBB;
    --bg-light: #F7FAFC;
    --bg-cream: #FFFBF5;
    --text-dark: #1A202C;
    --text-gray: #4A5568;
    --text-light: #718096;
    --border: #E2E8F0;
    --white: #FFFFFF;
    --success: #48BB78;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-cream);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo h1 {
    font-size: 1.5rem;
    color: var(--primary-dark);
    font-weight: 700;
}

.logo .tagline {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-top: 2px;
}

nav {
    display: flex;
    gap: 25px;
}

.nav-link {
    text-decoration: none;
    color: var(--text-gray);
    font-weight: 500;
    transition: color 0.2s;
}

.nav-link:hover {
    color: var(--accent);
}

/* Buttons */
.btn-primary {
    background: var(--accent);
    color: var(--white);
    border: none;
    padding: 14px 32px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    background: var(--accent-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--white);
    color: var(--accent);
    border: 2px solid var(--accent);
    padding: 12px 28px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-secondary:hover {
    background: var(--accent);
    color: var(--white);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--bg-light) 0%, var(--bg-cream) 100%);
    padding: 80px 0;
    text-align: center;
}

.hero h2 {
    font-size: 2.5rem;
    color: var(--primary-dark);
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-gray);
    max-width: 600px;
    margin: 0 auto 30px;
}

/* How It Works */
.how-it-works {
    padding: 80px 0;
    background: var(--white);
}

.how-it-works h2 {
    text-align: center;
    font-size: 2rem;
    color: var(--primary-dark);
    margin-bottom: 50px;
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
}

.step {
    text-align: center;
    padding: 30px;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--accent);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 20px;
}

.step h3 {
    font-size: 1.25rem;
    color: var(--primary-dark);
    margin-bottom: 10px;
}

.step p {
    color: var(--text-gray);
}

/* Quiz Section */
.quiz-section {
    padding: 80px 0;
    background: var(--bg-light);
}

.quiz-container {
    max-width: 700px;
    margin: 0 auto;
    background: var(--white);
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    padding: 50px;
}

.quiz-intro {
    text-align: center;
}

.quiz-intro h2 {
    font-size: 1.8rem;
    color: var(--primary-dark);
    margin-bottom: 15px;
}

.quiz-intro p {
    color: var(--text-gray);
    margin-bottom: 30px;
}

/* Quiz Question Styles */
.quiz-question {
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.quiz-progress {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 40px;
}

.progress-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--border);
    transition: all 0.3s;
}

.progress-dot.active {
    background: var(--accent);
    transform: scale(1.2);
}

.progress-dot.completed {
    background: var(--success);
}

.question-text {
    font-size: 1.4rem;
    color: var(--primary-dark);
    text-align: center;
    margin-bottom: 30px;
}

.options {
    display: grid;
    gap: 15px;
}

.option {
    padding: 18px 25px;
    background: var(--bg-light);
    border: 2px solid var(--border);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s;
    text-align: left;
}

.option:hover {
    border-color: var(--accent);
    background: var(--white);
}

.option.selected {
    border-color: var(--accent);
    background: rgba(91, 127, 163, 0.1);
}

.option-label {
    font-weight: 600;
    color: var(--primary-dark);
    margin-bottom: 4px;
}

.option-description {
    font-size: 0.9rem;
    color: var(--text-light);
}

.quiz-nav {
    display: flex;
    justify-content: space-between;
    margin-top: 40px;
}

.quiz-nav button {
    padding: 12px 30px;
}

.btn-back {
    background: transparent;
    color: var(--text-gray);
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-back:hover {
    color: var(--primary-dark);
}

/* Results Section */
.results-section {
    padding: 80px 0;
    background: var(--bg-light);
}

.results-section.hidden {
    display: none;
}

.results-section h2 {
    text-align: center;
    font-size: 2rem;
    color: var(--primary-dark);
    margin-bottom: 15px;
}

.results-intro {
    text-align: center;
    color: var(--text-gray);
    margin-bottom: 40px;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.product-card {
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.2s, box-shadow 0.2s;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.product-card.top-pick {
    border: 3px solid var(--accent);
}

.product-badge {
    background: var(--accent);
    color: var(--white);
    padding: 8px 16px;
    font-size: 0.85rem;
    font-weight: 600;
}

.product-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background: var(--bg-light);
}

.product-content {
    padding: 25px;
}

.product-name {
    font-size: 1.2rem;
    color: var(--primary-dark);
    margin-bottom: 8px;
}

.product-material {
    color: var(--accent);
    font-weight: 500;
    margin-bottom: 12px;
}

.product-features {
    list-style: none;
    margin-bottom: 20px;
}

.product-features li {
    padding: 6px 0;
    color: var(--text-gray);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.product-features li::before {
    content: "✓";
    color: var(--success);
    font-weight: 700;
}

.product-price {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 15px;
}

.product-link {
    display: block;
    text-align: center;
    background: var(--accent);
    color: var(--white);
    text-decoration: none;
    padding: 14px;
    border-radius: 8px;
    font-weight: 600;
    transition: background 0.2s;
}

.product-link:hover {
    background: var(--accent-light);
}

.match-reason {
    background: var(--bg-light);
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 15px;
    font-size: 0.9rem;
    color: var(--text-gray);
}

.match-reason strong {
    color: var(--primary-dark);
}

.results-actions {
    text-align: center;
}

/* About Section */
.about-section {
    padding: 80px 0;
    background: var(--white);
}

.about-section h2 {
    text-align: center;
    font-size: 2rem;
    color: var(--primary-dark);
    margin-bottom: 50px;
}

.about-text {
    max-width: 800px;
    margin: 0 auto;
}

.about-text h3 {
    font-size: 1.3rem;
    color: var(--primary-dark);
    margin: 30px 0 15px;
}

.about-text h3:first-child {
    margin-top: 0;
}

.about-text p {
    color: var(--text-gray);
    margin-bottom: 15px;
}

.about-text ul {
    list-style: none;
    margin-top: 20px;
}

.about-text li {
    padding: 12px 0;
    color: var(--text-gray);
    border-bottom: 1px solid var(--border);
}

.about-text li:last-child {
    border-bottom: none;
}

.about-text li strong {
    color: var(--primary-dark);
}

/* Footer */
footer {
    background: var(--primary-dark);
    color: var(--white);
    padding: 30px 0;
    text-align: center;
}

footer p {
    margin: 5px 0;
}

.affiliate-disclosure {
    font-size: 0.85rem;
    opacity: 0.8;
}

/* Hidden utility */
.hidden {
    display: none !important;
}

/* Responsive */
@media (max-width: 768px) {
    header .container {
        flex-direction: column;
        gap: 15px;
    }

    nav {
        gap: 15px;
    }

    .hero {
        padding: 50px 0;
    }

    .hero h2 {
        font-size: 1.8rem;
    }

    .quiz-container {
        padding: 30px 20px;
    }

    .question-text {
        font-size: 1.2rem;
    }

    .quiz-nav {
        flex-direction: column;
        gap: 15px;
    }

    .quiz-nav button {
        width: 100%;
    }

    .results-grid {
        grid-template-columns: 1fr;
    }
}