/* ===== Global Styles ===== */
:root {
    --primary-color: #2196F3;
    --secondary-color: #1976D2;
    --accent-color: #03A9F4;
    --bg-color: #f5f9ff;
    --bg-light: #ffffff;
    --text-main: #333333;
    --text-muted: #666666;
    --text-light: #ffffff;
    --card-bg: rgba(255, 255, 255, 0.9);
    --border-color: #e0f2f1;
    --shadow: 0 8px 30px rgba(33, 150, 243, 0.1);
    --shadow-hover: 0 15px 35px rgba(33, 150, 243, 0.2);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

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

a:hover {
    color: var(--secondary-color);
}

ul {
    list-style: none;
}

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

.section {
    padding: 80px 0;
    position: relative;
    z-index: 2;
}

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

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 10px;
    color: var(--text-main);
    font-weight: 800;
}

.section-subtitle {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 50px;
    font-size: 1.1rem;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.card {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 30px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 30px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: var(--text-light);
    box-shadow: 0 4px 15px rgba(33, 150, 243, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
    color: var(--text-light);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(33, 150, 243, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--text-light);
    border: 2px solid var(--text-light);
}

.btn-secondary:hover {
    background: var(--text-light);
    color: var(--primary-color);
}

.btn-login {
    color: var(--text-main);
    background: transparent;
    padding: 8px 20px;
}

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

.btn-register {
    background: var(--primary-color);
    color: var(--text-light);
    padding: 8px 20px;
}

.btn-register:hover {
    background: var(--secondary-color);
    color: var(--text-light);
}

.btn-large {
    padding: 15px 40px;
    font-size: 1.1rem;
}

.btn-full {
    width: 100%;
    margin-top: 20px;
}

/* ===== Navbar ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.navbar.scrolled {
    padding: 10px 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    color: var(--text-main);
    font-weight: 600;
    font-size: 1rem;
}

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

.mobile-menu-btn {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-main);
}

/* ===== Hero Section ===== */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(33, 150, 243, 0.8), rgba(3, 169, 244, 0.8));
    color: var(--text-light);
    padding-top: 80px; /* Offset for navbar */
}

#particles-js {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

#particles-js canvas {
    filter: blur(25px);
    opacity: 0.8;
}

.hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    overflow: hidden;
    line-height: 0;
    z-index: 3;
}

.hero-wave svg {
    position: relative;
    display: block;
    width: calc(100% + 1.3px);
    height: 100px;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: 0 20px;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 20px;
    text-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 40px;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
}

/* ===== Advantages ===== */
.advantage-card {
    text-align: center;
}

.icon-large {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    background: rgba(33, 150, 243, 0.1);
    width: 80px;
    height: 80px;
    line-height: 80px;
    border-radius: 50%;
    display: inline-block;
}

.advantage-card h3 {
    margin-bottom: 15px;
    font-size: 1.4rem;
}

.advantage-card p {
    color: var(--text-muted);
}

/* ===== Reviews ===== */
.review-card {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.review-header {
    display: flex;
    align-items: center;
    gap: 15px;
}

.avatar {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.stars {
    color: #FFC107;
    font-size: 1.2rem;
}

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

.faq-item {
    background: var(--card-bg);
    border-radius: 10px;
    margin-bottom: 15px;
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.faq-question {
    padding: 20px;
    font-weight: 600;
    font-size: 1.1rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.faq-question:hover {
    color: var(--primary-color);
}

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

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

.faq-answer {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out, padding 0.3s ease;
    color: var(--text-muted);
}

.faq-item.active .faq-answer {
    padding: 0 20px 20px;
    max-height: 500px;
}

/* ===== Status Table ===== */
.status-table-container {
    overflow-x: auto;
    background: var(--card-bg);
    border-radius: 20px;
    padding: 20px;
    box-shadow: var(--shadow);
}

.status-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.status-table th, .status-table td {
    padding: 15px;
    border-bottom: 1px solid var(--border-color);
}

.status-table th {
    font-weight: 600;
    color: var(--primary-color);
}

.status-indicator {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    margin-right: 8px;
}

.status-online { background-color: #4CAF50; box-shadow: 0 0 8px #4CAF50; }
.status-offline { background-color: #F44336; box-shadow: 0 0 8px #F44336; }

.ping {
    font-family: monospace;
    font-weight: bold;
}
.ping.good { color: #4CAF50; }
.ping.medium { color: #FF9800; }
.ping.bad { color: #F44336; }

/* ===== Pricing ===== */
.pricing-card {
    text-align: center;
    position: relative;
    padding: 40px 30px;
}

.pricing-card.featured {
    border: 2px solid var(--primary-color);
    transform: scale(1.05);
    z-index: 10;
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-10px);
}

.popular-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: bold;
}

.plan-name {
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.plan-price {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 30px;
    display: flex;
    align-items: baseline;
    justify-content: center;
}

.currency {
    font-size: 1.5rem;
    vertical-align: super;
}

.period {
    font-size: 1rem;
    color: var(--text-muted);
    font-weight: normal;
}

.price-original {
    font-size: 1.1rem;
    color: var(--text-muted);
    text-decoration: line-through;
    margin-left: 8px;
    font-weight: normal;
}

.plan-features {
    text-align: left;
    margin-bottom: 30px;
}

.plan-features li {
    margin-bottom: 15px;
    color: var(--text-muted);
}

.plan-features i {
    color: #4CAF50;
    margin-right: 10px;
}

/* ===== Knowledge Base ===== */
.article-card {
    display: block;
    color: inherit;
}

.article-card h4 {
    margin-bottom: 10px;
    font-size: 1.1rem;
    color: var(--primary-color);
}

.article-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.read-more {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

/* ===== Article Page ===== */
.article-header {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    padding: 150px 0 80px;
    text-align: center;
}

.article-header h1 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.article-meta {
    font-size: 0.9rem;
    opacity: 0.8;
}

.article-content {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 50px;
    margin-top: -40px;
    position: relative;
    z-index: 10;
    box-shadow: var(--shadow);
    margin-bottom: 80px;
}

.article-content h2 {
    color: var(--primary-color);
    margin: 30px 0 15px;
}

.article-content p {
    margin-bottom: 15px;
    color: var(--text-muted);
    line-height: 1.8;
}

.article-content ul, .article-content ol {
    margin: 15px 0 15px 20px;
    color: var(--text-muted);
}

.article-content li {
    margin-bottom: 8px;
}

/* ===== Footer ===== */
footer {
    background: #111;
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.footer-logo {
    font-size: 2rem;
    font-weight: 800;
    color: var(--accent-color);
}

.footer-logo p {
    font-size: 1rem;
    color: #888;
    font-weight: normal;
    margin-top: 10px;
}

.footer-links a {
    color: #888;
    margin-left: 20px;
}

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

.copyright {
    text-align: center;
    color: #555;
    border-top: 1px solid #333;
    padding-top: 20px;
}

/* ===== Responsive ===== */
@media (max-width: 992px) {
    .pricing-card.featured {
        transform: none;
    }
    .pricing-card.featured:hover {
        transform: translateY(-10px);
    }
}

@media (max-width: 768px) {
    .nav-links, .nav-actions {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: white;
        padding: 20px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .mobile-menu-btn {
        display: block;
    }

    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero p {
        font-size: 1.1rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 20px;
    }
    
    .footer-links {
        display: flex;
        flex-direction: column;
        gap: 10px;
    }
    
    .footer-links a {
        margin: 0;
    }
}