* {
    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-color: #f8f9fa;
}

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

/* Header Styles */
.navbar {
    background: linear-gradient(135deg, #c41e3a, #e74c3c);
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    display: flex;
    align-items: center;
    color: white;
    font-size: 1.5rem;
    font-weight: bold;
}

.logo i {
    margin-right: 10px;
    font-size: 1.8rem;
}

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

.nav-menu a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    transition: background-color 0.3s;
}

.nav-menu a:hover {
    background-color: rgba(255,255,255,0.2);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #c41e3a, #e74c3c);
    color: white;
    padding: 4rem 0;
    text-align: center;
}

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

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.quick-start {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin: 2rem 0;
    flex-wrap: wrap;
}

.step-highlight {
    background: rgba(255,255,255,0.2);
    padding: 1rem 1.5rem;
    border-radius: 10px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    backdrop-filter: blur(10px);
}

.step-number {
    background: white;
    color: #c41e3a;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.arrow {
    font-size: 1.5rem;
    opacity: 0.8;
}

.cta-button {
    display: inline-block;
    background: white;
    color: #c41e3a;
    padding: 1rem 2rem;
    font-size: 1.2rem;
    font-weight: bold;
    text-decoration: none;
    border-radius: 10px;
    margin-top: 2rem;
    transition: transform 0.3s, box-shadow 0.3s;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
}

/* Section Styles */
section {
    padding: 4rem 0;
}

h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.section-intro {
    text-align: center;
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto 3rem;
    color: #666;
}

/* Activation Steps */
.activation-steps {
    display: grid;
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.step-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    border-left: 5px solid #c41e3a;
    transition: transform 0.3s, box-shadow 0.3s;
}

.step-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

.step-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #c41e3a, #e74c3c);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.step-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.step-card p {
    margin-bottom: 1rem;
    color: #666;
    line-height: 1.8;
}

.pro-tip {
    background: #f8f9fa;
    padding: 1rem;
    border-radius: 8px;
    margin-top: 1rem;
    border-left: 4px solid #28a745;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.pro-tip i {
    color: #28a745;
}

.key-location, .account-benefits, .success-indicators {
    margin-top: 1.5rem;
    background: #f8f9fa;
    padding: 1.5rem;
    border-radius: 8px;
}

.key-location h4, .account-benefits h4, .success-indicators h4 {
    margin-bottom: 1rem;
    color: #2c3e50;
}

.key-location ul, .account-benefits ul, .success-indicators ul {
    list-style: none;
}

.key-location li, .account-benefits li {
    padding: 0.5rem 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.key-location i {
    color: #c41e3a;
    width: 20px;
}

.success-indicators li {
    padding: 0.25rem 0;
    color: #28a745;
}

/* Download Section */
.download-section {
    background: white;
}

.platform-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.tab {
    padding: 1rem 2rem;
    background: #f8f9fa;
    border: 2px solid #dee2e6;
    border-radius: 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    transition: all 0.3s;
}

.tab:hover, .tab.active {
    background: #c41e3a;
    color: white;
    border-color: #c41e3a;
}

.platform-content {
    display: none;
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    max-width: 800px;
    margin: 0 auto;
}

.platform-content.active {
    display: block;
}

.install-steps {
    margin: 1.5rem 0;
    padding-left: 1rem;
}

.install-steps li {
    padding: 0.5rem 0;
    color: #666;
    line-height: 1.6;
}

.system-requirements {
    background: #f8f9fa;
    padding: 1.5rem;
    border-radius: 8px;
    margin-top: 2rem;
}

.system-requirements h4 {
    margin-bottom: 1rem;
    color: #2c3e50;
}

.system-requirements ul {
    list-style: none;
}

.system-requirements li {
    padding: 0.25rem 0;
    color: #666;
}

.system-requirements li::before {
    content: "✓ ";
    color: #28a745;
    font-weight: bold;
}

.mobile-platforms {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 2rem;
}

.mobile-platform h4 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
    color: #2c3e50;
}

/* Features Section */
.features-section {
    background: #f8f9fa;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #c41e3a, #e74c3c);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 1.5rem;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.feature-card p {
    color: #666;
    line-height: 1.6;
}

/* Troubleshoot Section */
.troubleshoot-section {
    background: white;
}

.issues-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.issue-card {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 15px;
    border-left: 5px solid #ffc107;
}

.issue-card h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.issue-card i {
    color: #ffc107;
}

.solution h4 {
    margin-bottom: 0.5rem;
    color: #28a745;
}

.solution ul {
    list-style: none;
    padding-left: 1rem;
}

.solution li {
    padding: 0.25rem 0;
    color: #666;
    position: relative;
}

.solution li::before {
    content: "→ ";
    color: #28a745;
    font-weight: bold;
    position: absolute;
    left: -1rem;
}

/* FAQ Section */
.faq-section {
    background: #f8f9fa;
}

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

.faq-item {
    background: white;
    margin-bottom: 1rem;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

.faq-question {
    padding: 1.5rem;
    background: white;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.3s;
}

.faq-question:hover {
    background: #f8f9fa;
}

.faq-question h3 {
    margin: 0;
    color: #2c3e50;
    flex-grow: 1;
}

.faq-question i {
    color: #c41e3a;
    transition: transform 0.3s;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    background: #f8f9fa;
}

.faq-answer p {
    padding: 1.5rem;
    margin: 0;
    color: #666;
    line-height: 1.6;
}

.faq-item.active .faq-answer {
    max-height: 200px;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

/* Support Section */
.support-section {
    background: white;
}

.support-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.support-card {
    text-align: center;
    padding: 2rem;
    background: #f8f9fa;
    border-radius: 15px;
    transition: transform 0.3s;
}

.support-card:hover {
    transform: translateY(-5px);
}

.support-card i {
    font-size: 3rem;
    color: #c41e3a;
    margin-bottom: 1rem;
}

.support-card h3 {
    margin-bottom: 1rem;
    color: #2c3e50;
}

.support-card p {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.support-link {
    display: inline-block;
    background: #c41e3a;
    color: white;
    padding: 0.8rem 1.5rem;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 500;
    transition: background-color 0.3s;
}

.support-link:hover {
    background: #a01729;
}

/* Footer */
footer {
    background: #2c3e50;
    color: white;
    padding: 2rem 0;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.footer-section h4 {
    margin-bottom: 1rem;
    color: #ecf0f1;
}

.footer-section p, .footer-section li {
    color: #bdc3c7;
    line-height: 1.6;
}

.footer-section ul {
    list-style: none;
}

.footer-section a {
    color: #3498db;
    text-decoration: none;
}

.footer-section a:hover {
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .quick-start {
        flex-direction: column;
    }
    
    .arrow {
        transform: rotate(90deg);
    }
    
    .nav-menu {
        flex-direction: column;
        gap: 1rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .issues-grid {
        grid-template-columns: 1fr;
    }
    
    .platform-tabs {
        flex-direction: column;
        align-items: center;
    }
    
    .mobile-platforms {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    section {
        padding: 2rem 0;
    }
    
    .step-card, .platform-content, .support-card {
        padding: 1.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
}