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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #ffffff;
    color: #0f172a;
    line-height: 1.7;
}

nav {
    background: white;
    border-bottom: 1px solid #e2e8f0;
    padding: 16px 24px;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 24px;
    font-weight: 800;
    color: #0f172a;
    text-decoration: none;
}

.logo img {
    width: 60px;
    height: 60px;
}

.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 80px 24px 60px;
    text-align: center;
}

.hero h1 {
    font-size: 48px;
    font-weight: 800;
    color: white;
    margin-bottom: 16px;
}

.hero p {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.9);
}

.content {
    max-width: 1200px;
    margin: 60px auto 80px;
    padding: 0 24px;
}

.section {
    margin-bottom: 80px;
}

.section h2 {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 32px;
    color: #0f172a;
}

.guide-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
    margin-bottom: 60px;
}

.guide-card {
    background: white;
    padding: 32px;
    border-radius: 16px;
    border: 1px solid #e2e8f0;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s;
}

.guide-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);
}

.guide-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 20px;
    color: #3b82f6;
}

.guide-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
    color: #0f172a;
}

.guide-card p {
    color: #64748b;
    margin-bottom: 20px;
    line-height: 1.7;
}

.guide-card ul {
    list-style: none;
    margin-bottom: 20px;
}

.guide-card li {
    padding: 8px 0;
    color: #475569;
    display: flex;
    align-items: center;
    gap: 8px;
}

.guide-card li::before {
    content: "→";
    color: #3b82f6;
    font-weight: bold;
}

.step-by-step {
    background: #f8fafc;
    padding: 48px;
    border-radius: 16px;
    margin-bottom: 60px;
}

.step {
    display: flex;
    gap: 24px;
    margin-bottom: 32px;
    padding-bottom: 32px;
    border-bottom: 1px solid #e2e8f0;
}

.step:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.step-number {
    width: 48px;
    height: 48px;
    background: #3b82f6;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 800;
    flex-shrink: 0;
}

.step-content h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 8px;
    color: #0f172a;
}

.step-content p {
    color: #475569;
    line-height: 1.7;
}

.faq-item {
    background: white;
    padding: 32px;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
    margin-bottom: 24px;
}

.faq-item h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: #0f172a;
}

.faq-item p {
    color: #475569;
    line-height: 1.7;
}

.btn {
    display: inline-block;
    padding: 12px 32px;
    background: #3b82f6;
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.2s;
    font-size: 16px;
}

.btn:hover {
    background: #2563eb;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.3);
}

.btn-outline {
    background: transparent;
    border: 2px solid #3b82f6;
    color: #3b82f6;
}

.btn-outline:hover {
    background: #3b82f6;
    color: white;
}

.highlight-box {
    background: #f0f9ff;
    padding: 24px;
    border-radius: 12px;
    border-left: 4px solid #3b82f6;
    margin: 32px 0;
}

.highlight-box strong {
    color: #0f172a;
    font-size: 18px;
}

footer {
    background: #f8fafc;
    border-top: 1px solid #e2e8f0;
    padding: 40px 24px;
    text-align: center;
    color: #64748b;
    margin-top: 80px;
}

code {
    background: #f1f5f9;
    padding: 2px 8px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    color: #dc2626;
}