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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f8f9fa;
}

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

/* Header */
.header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
}

.logo-subtitle {
    font-size: 0.7em;
    font-weight: normal;
    opacity: 0.8;
    margin-left: 0.3rem;
    white-space: nowrap;
}

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

.nav-links a {
    color: white;
    text-decoration: none;
    transition: opacity 0.3s;
}

.nav-links a:hover {
    opacity: 0.8;
}

/* Mobile Menu */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    box-shadow: 0 4px 20px rgba(0,0,0,0.2);
    z-index: 1000;
}

.mobile-menu.active {
    display: block;
}

.mobile-menu ul {
    list-style: none;
    padding: 1rem;
    margin: 0;
}

.mobile-menu li {
    margin-bottom: 1rem;
}

.mobile-menu a {
    color: white;
    text-decoration: none;
    font-size: 1.1rem;
    display: block;
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.mobile-menu a:hover {
    opacity: 0.8;
}

/* Main Content */
.main-content {
    margin-top: 80px;
    padding: 2rem 0;
}

.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 4rem 0;
    text-align: center;
    margin-bottom: 3rem;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* Steps */
.steps-container {
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    padding: 2rem;
    margin-bottom: 2rem;
}

.step {
    display: flex;
    margin-bottom: 3rem;
    align-items: flex-start;
}

.step:last-child {
    margin-bottom: 0;
}

.step-number {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    margin-right: 2rem;
    flex-shrink: 0;
}

.step-content {
    flex: 1;
}

.step-title {
    font-size: 1.5rem;
    color: #667eea;
    margin-bottom: 1rem;
}

.step-description {
    margin-bottom: 1rem;
    color: #666;
}

.code-block {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    padding: 1rem;
    font-family: 'Courier New', monospace;
    margin: 1rem 0;
    overflow-x: auto;
}

.code-block code {
    color: #e83e8c;
}

.highlight {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border: 2px solid #667eea;
    border-radius: 12px;
    padding: 1.5rem;
    margin: 1rem 0;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.1);
    position: relative;
}

.highlight::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 12px 12px 0 0;
}

.highlight strong {
    color: #667eea;
    font-size: 1.1rem;
    display: block;
    margin-bottom: 1rem;
    font-weight: 600;
}

.highlight ol {
    margin: 0;
    padding-left: 1.5rem;
}

.highlight li {
    margin-bottom: 0.8rem;
    color: #495057;
    line-height: 1.6;
    position: relative;
}

.highlight li:before {
    content: counter(list-item);
    position: absolute;
    left: -1.5rem;
    top: 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: bold;
}

.highlight a {
    color: #667eea;
    text-decoration: none;
    font-weight: 600;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
}

.highlight a:hover {
    border-bottom-color: #667eea;
    color: #5a67d8;
}

.warning {
    background: #f8d7da;
    border: 1px solid #f5c6cb;
    border-radius: 8px;
    padding: 1rem;
    margin: 1rem 0;
}

.success {
    background: #d4edda;
    border: 1px solid #c3e6cb;
    border-radius: 8px;
    padding: 1rem;
    margin: 1rem 0;
}

/* Requirements */
.requirements {
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    padding: 2rem;
    margin-bottom: 2rem;
}

.requirements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.requirement-card {
    background: #f8f9fa;
    padding: 1.5rem;
    border-radius: 10px;
    border-left: 4px solid #667eea;
}

.requirement-card h4 {
    color: #667eea;
    margin-bottom: 1rem;
}

/* Troubleshooting */
.troubleshooting {
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    padding: 2rem;
    margin-bottom: 2rem;
}

.faq-item {
    background: #f8f9fa;
    margin-bottom: 1rem;
    border-radius: 10px;
    overflow: hidden;
}

.faq-question {
    padding: 1.5rem;
    cursor: pointer;
    font-weight: 600;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #e9ecef;
}

.faq-answer {
    padding: 0 1.5rem 1.5rem;
    display: none;
}

.faq-answer.active {
    display: block;
}

/* CTA */
.cta-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
    padding: 3rem 0;
    border-radius: 15px;
    margin-bottom: 2rem;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    background: #ff6b6b;
    color: white;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s ease;
    margin: 0.5rem;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.2);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

/* Footer */
.footer {
    background: #333;
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: flex; 
    gap: 4rem; 
    margin-bottom: 2rem;
}

.footer-content div{
    max-width: 300px;
}

.footer h4 {
    margin-bottom: 1rem;
    color: #667eea;
}

.footer a {
    color: #ccc;
    text-decoration: none;
    display: block;
    margin-bottom: 0.5rem;
    transition: color 0.3s ease;
}

.footer a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #555;
    color: #ccc;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link i {
    font-size: 2.5rem;
}