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

:root {
    --primary-color: #4f46e5;
    --primary-hover: #4338ca;
    --secondary-color: #6366f1;
    --text-color: #374151;
    --text-light: #6b7280;
    --bg-color: #ffffff;
    --bg-light: #f8fafc;
    --bg-hover: #f3f4f6;
    --border-color: #e5e7eb;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 4px 12px rgba(0, 0, 0, 0.15);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-light);
}

/* Navigation */
nav {
    background: var(--bg-color);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

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

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

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

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

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 4rem 2rem;
    text-align: center;
    margin-bottom: 3rem;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 600;
    transition: background 0.2s;
    border: none;
    cursor: pointer;
}

.btn:hover {
    background: var(--primary-hover);
}

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

.btn-secondary:hover {
    background: var(--bg-hover);
}

/* Content Sections */
.content {
    background: var(--bg-color);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.content h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.content h2 {
    font-size: 2rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--text-color);
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.content h3 {
    font-size: 1.5rem;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--text-color);
}

.content p {
    margin-bottom: 1rem;
    color: var(--text-color);
}

.content ul, .content ol {
    margin-left: 2rem;
    margin-bottom: 1rem;
}

.content li {
    margin-bottom: 0.5rem;
}

/* Breadcrumbs */
.breadcrumbs {
    margin-bottom: 1rem;
    color: var(--text-light);
    font-size: 0.9rem;
}

.breadcrumbs a {
    color: var(--primary-color);
    text-decoration: none;
}

.breadcrumbs a:hover {
    text-decoration: underline;
}

/* Feature Cards */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.feature-card {
    background: var(--bg-color);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    transition: transform 0.2s, box-shadow 0.2s;
    cursor: pointer;
    display: block;
    text-decoration: none;
    color: inherit;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.feature-card h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.feature-card p {
    color: var(--text-light);
    margin-bottom: 1rem;
}

.feature-card .learn-more {
    color: #4f46e5 !important;
    font-weight: 600;
    display: inline-block;
    margin-top: 0.5rem;
    text-decoration: none !important;
}

.feature-card:hover .learn-more {
    text-decoration: underline !important;
    color: #4f46e5 !important;
}

a.feature-card .learn-more,
a.feature-card:visited .learn-more,
a.feature-card:active .learn-more,
a.feature-card:link .learn-more {
    color: #4f46e5 !important;
}

/* Images */
.content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: var(--shadow);
    margin: 1.5rem 0;
}

/* Code Blocks */
pre {
    background: #1e293b;
    color: #e2e8f0;
    padding: 1rem;
    border-radius: 6px;
    overflow-x: auto;
    margin: 1rem 0;
}

code {
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
}

table th, table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

table th {
    background: var(--bg-light);
    font-weight: 600;
    color: var(--text-color);
}

/* Related Guides */
.related-guides {
    background: var(--bg-light);
    padding: 1.5rem;
    border-radius: 8px;
    margin-top: 3rem;
    border-left: 4px solid var(--primary-color);
}

.related-guides h3 {
    margin-top: 0;
    margin-bottom: 1rem;
}

.related-guides ul {
    list-style: none;
    margin-left: 0;
}

.related-guides li {
    margin-bottom: 0.5rem;
}

.related-guides a {
    color: var(--primary-color);
    text-decoration: none;
}

.related-guides a:hover {
    text-decoration: underline;
}

/* Footer */
footer {
    background: var(--bg-color);
    border-top: 1px solid var(--border-color);
    padding: 2rem;
    text-align: center;
    color: var(--text-light);
    margin-top: 4rem;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-links {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .content {
        padding: 1rem;
    }

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

/* Step-by-step instructions */
.steps {
    background: var(--bg-light);
    padding: 1.5rem;
    border-radius: 8px;
    margin: 1.5rem 0;
    border-left: 4px solid var(--primary-color);
}

.steps ol {
    margin-left: 1.5rem;
}

.steps li {
    margin-bottom: 0.75rem;
}

/* Tips and Notes */
.tip {
    background: #dbeafe;
    padding: 1rem;
    border-radius: 6px;
    border-left: 4px solid var(--primary-color);
    margin: 1rem 0;
}

.warning {
    background: #fef3c7;
    padding: 1rem;
    border-radius: 6px;
    border-left: 4px solid #f59e0b;
    margin: 1rem 0;
}