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

:root {
    --color-primary: #1a365d;
    --color-secondary: #2d4a6f;
    --color-accent: #c9a227;
    --color-text: #2d3748;
    --color-text-light: #718096;
    --color-bg: #ffffff;
    --color-bg-alt: #f7fafc;
    --color-border: #e2e8f0;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --radius: 8px;
    --transition: 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-bg);
}

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

/* Typography */
h1, h2, h3, h4 {
    line-height: 1.3;
    color: var(--color-primary);
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
}

h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

h3 {
    font-size: 1.5rem;
    margin: 1.5rem 0 1rem;
}

h4 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

p {
    margin-bottom: 1rem;
}

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover {
    color: #b8922a;
}

ul {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

li {
    margin-bottom: 0.5rem;
}

/* Navigation */
.hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: #ffffff;
    padding: 1rem 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: #ffffff;
}

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

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
    padding-left: 0;
    margin: 0;
}

.nav-links a {
    color: #ffffff;
    font-weight: 500;
    transition: color var(--transition);
}

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

/* Hero Content */
.hero-content {
    text-align: center;
    padding: 4rem 20px 5rem;
    max-width: 800px;
    margin: 0 auto;
}

.hero-content h1 {
    color: #ffffff;
    margin-bottom: 1rem;
}

.hero-content p {
    font-size: 1.25rem;
    opacity: 0.9;
}

/* Sections */
.section {
    padding: 5rem 0;
}

.section-alt {
    background-color: var(--color-bg-alt);
}

.section-intro {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 3rem;
    color: var(--color-text-light);
}

/* Benefits Grid */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.benefit-card {
    background: var(--color-bg);
    padding: 2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: transform var(--transition), box-shadow var(--transition);
}

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

.benefit-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.benefit-card h3 {
    margin: 0.5rem 0;
}

.benefit-card p {
    color: var(--color-text-light);
    margin-bottom: 0;
}

/* Content Block */
.content-block {
    max-width: 900px;
    margin: 0 auto;
}

/* Anatomy List */
.anatomy-list {
    display: grid;
    gap: 1rem;
    margin: 1.5rem 0;
}

.anatomy-item {
    background: var(--color-bg);
    padding: 1rem 1.5rem;
    border-radius: var(--radius);
    border-left: 4px solid var(--color-accent);
}

/* Product Comparison */
.product-comparison {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.product-card {
    background: var(--color-bg);
    padding: 2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    text-align: center;
}

.product-card h4 {
    color: var(--color-primary);
}

/* CTA Button */
.cta-button {
    display: inline-block;
    background: var(--color-accent);
    color: var(--color-primary);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    font-weight: 600;
    margin-top: 1rem;
    transition: background var(--transition), transform var(--transition);
}

.cta-button:hover {
    background: #b8922a;
    color: var(--color-primary);
    transform: translateY(-2px);
}

/* Steps List */
.steps-list {
    margin: 2rem 0;
}

.step {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
    align-items: flex-start;
}

.step-number {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    background: var(--color-accent);
    color: var(--color-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
}

.step-content h4 {
    margin-top: 0;
}

/* Passes Grid */
.passes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.pass-card {
    background: var(--color-bg);
    padding: 1.5rem;
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
}

.pass-card h4 {
    color: var(--color-primary);
    margin-bottom: 0.75rem;
}

/* Tip Box */
.tip-box {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: #ffffff;
    padding: 1.5rem 2rem;
    border-radius: var(--radius);
    margin: 2rem 0;
}

.tip-box h4 {
    color: var(--color-accent);
    margin-bottom: 0.5rem;
}

.tip-box a {
    color: var(--color-accent);
}

/* Blade Info */
.blade-info {
    display: grid;
    gap: 1.5rem;
    margin: 1.5rem 0;
}

.blade-card {
    background: var(--color-bg);
    padding: 1.5rem;
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
}

.blade-card h4 {
    margin-bottom: 0.5rem;
}

/* Equipment List */
.equipment-list {
    background: var(--color-bg);
    padding: 1.5rem 1.5rem 1.5rem 2.5rem;
    border-radius: var(--radius);
    margin: 1.5rem 0;
    border: 1px solid var(--color-border);
}

.equipment-list li {
    margin-bottom: 1rem;
}

.equipment-list li:last-child {
    margin-bottom: 0;
}

/* Products Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.product-item {
    background: var(--color-bg);
    padding: 2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: transform var(--transition), box-shadow var(--transition);
}

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

.product-item h3 {
    color: var(--color-accent);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin: 0 0 0.5rem;
}

.product-item h4 {
    margin-bottom: 1rem;
}

/* Maintenance List */
.maintenance-list {
    background: var(--color-bg);
    padding: 1.5rem 1.5rem 1.5rem 2.5rem;
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
    margin: 1rem 0;
}

/* Troubleshooting Grid */
.trouble-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.trouble-card {
    background: var(--color-bg);
    padding: 1.5rem;
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
}

.trouble-card h4 {
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.trouble-card p {
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.trouble-card p:last-child {
    margin-bottom: 0;
}

/* FAQ */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--color-bg);
    padding: 1.5rem;
    border-radius: var(--radius);
    margin-bottom: 1rem;
    border: 1px solid var(--color-border);
}

.faq-item h4 {
    color: var(--color-primary);
    margin-bottom: 0.75rem;
}

.faq-item p {
    margin-bottom: 0;
    color: var(--color-text-light);
}

/* Footer */
.footer {
    background: var(--color-primary);
    color: #ffffff;
    padding: 2rem 0;
    text-align: center;
}

.footer p {
    margin-bottom: 0.5rem;
    opacity: 0.9;
}

.affiliate-disclosure {
    font-size: 0.85rem;
    opacity: 0.7;
    max-width: 700px;
    margin: 1rem auto 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.75rem;
    }

    .nav-container {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-links {
        gap: 1rem;
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero-content {
        padding: 2rem 20px 3rem;
    }

    .section {
        padding: 3rem 0;
    }

    .step {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .anatomy-item {
        border-left: none;
        border-top: 4px solid var(--color-accent);
    }
}

@media (max-width: 480px) {
    .nav-links {
        font-size: 0.9rem;
    }

    .benefit-card,
    .product-card,
    .product-item {
        padding: 1.5rem;
    }

    .cta-button {
        display: block;
        text-align: center;
    }
}

/* Print Styles */
@media print {
    .hero {
        background: none;
        color: var(--color-primary);
    }

    .cta-button {
        border: 2px solid var(--color-primary);
    }

    .section-alt {
        background: none;
    }
}