:root {
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --bg-dark: #0f172a;
    --bg-darker: rgba(2, 6, 23, 0.7);
    --card-bg: rgba(30, 41, 59, 0.7);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --accent: #10b981;
}

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

body {
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

html {
    scroll-behavior: smooth;
}

/* --- Dynamic Background --- */
.bg-blobs {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    overflow: hidden;
    background: #0f172a;
}
.blob {
    position: absolute;
    filter: blur(100px);
    opacity: 0.4;
    border-radius: 50%;
    animation: moveBlobs 15s infinite alternate ease-in-out;
}
.blob1 { width: 50vw; height: 50vw; background: #3b82f6; top: -10vw; left: -10vw; }
.blob2 { width: 40vw; height: 40vw; background: #10b981; bottom: -10vw; right: -10vw; animation-delay: -5s; }
.blob3 { width: 45vw; height: 45vw; background: #6366f1; top: 30%; left: 20%; animation-delay: -10s; }

@keyframes moveBlobs {
    0% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(5vw, 10vh) scale(1.1); }
    100% { transform: translate(-5vw, -5vh) scale(0.9); }
}

#particles-js {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: -1;
    pointer-events: none;
}

/* Typography */
h1, h2, h3, h4 {
    font-weight: 600;
    line-height: 1.2;
}

a {
    text-decoration: none;
    color: inherit;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(15, 23, 42, 0.5);
    backdrop-filter: blur(15px);
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 1px;
}

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

.nav-links a {
    color: var(--text-main);
    font-size: 0.95rem;
    transition: color 0.3s;
}

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

/* Buttons */
.btn-primary, .btn-primary-sm, .btn-outline {
    display: inline-block;
    border-radius: 8px;
    font-weight: 600;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: white;
    padding: 0.8rem 2rem;
    font-size: 1.1rem;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
    border: none;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.6);
}

.btn-primary-sm {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: white;
    padding: 0.5rem 1.2rem;
    font-size: 0.9rem;
    border: none;
}

.btn-primary-sm:hover {
    transform: translateY(-2px);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
    padding: 0.7rem 2rem;
}

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

/* Sections */
.section-container {
    padding: 5rem 5%;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.bg-darker {
    background-color: transparent;
    border-top: 1px solid rgba(255,255,255,0.02);
    border-bottom: 1px solid rgba(255,255,255,0.02);
    max-width: 100%;
}

.bg-darker > h2, .bg-darker > .status-grid, .bg-darker > .reviews-grid, .bg-darker > .kb-grid {
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-main);
}

/* Hero */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 20px;
    position: relative;
    z-index: 10;
}

.hero-content h1 {
    font-size: 4rem;
    margin-bottom: 1rem;
    background: linear-gradient(to right, #60a5fa, #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 30px rgba(96, 165, 250, 0.3);
}

.hero-content p {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Features */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    border: 1px solid rgba(255,255,255,0.1);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: rgba(59, 130, 246, 0.5);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.feature-card .icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

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

/* Node Status */
.status-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.status-card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid rgba(255,255,255,0.1);
}

.status-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1rem;
    font-weight: 600;
}

.ping.green { color: var(--accent); }
.ping.yellow { color: #f59e0b; }

.status-bar {
    height: 6px;
    background: #334155;
    border-radius: 3px;
    overflow: hidden;
}

.status-bar .fill {
    height: 100%;
}
.status-bar .fill.green { background: var(--accent); box-shadow: 0 0 10px var(--accent); }
.status-bar .fill.yellow { background: #f59e0b; box-shadow: 0 0 10px #f59e0b; }

/* Pricing */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    align-items: center;
}

.pricing-card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    padding: 3rem 2rem;
    border-radius: 16px;
    text-align: center;
    border: 1px solid rgba(255,255,255,0.1);
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease;
}

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

.pricing-card.popular {
    transform: scale(1.05);
    border-color: var(--primary);
    background: linear-gradient(180deg, rgba(30, 41, 59, 0.9) 0%, rgba(15, 23, 42, 0.9) 100%);
    box-shadow: 0 0 30px rgba(59, 130, 246, 0.2);
}

.pricing-card.popular:hover {
    transform: scale(1.05) translateY(-5px);
}

.pricing-card .badge {
    position: absolute;
    top: 1.5rem;
    right: -2.5rem;
    background: var(--primary);
    color: white;
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.3rem 3rem;
    transform: rotate(45deg);
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

.pricing-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.pricing-card .price {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 2rem;
    color: var(--primary);
}

.pricing-card .price span {
    font-size: 1.2rem;
    color: var(--text-muted);
}

.pricing-card .features {
    list-style: none;
    margin-bottom: 2rem;
}

.pricing-card .features li {
    margin-bottom: 1rem;
    color: var(--text-muted);
}

/* Reviews */
.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.review-card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,0.1);
    transition: transform 0.3s;
}

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

.review-text {
    font-style: italic;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.reviewer {
    font-weight: 600;
    color: var(--primary);
}

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

.faq-item {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    margin-bottom: 1rem;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.1);
}

.faq-question {
    padding: 1.5rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.3s;
}

.faq-question:hover {
    background: rgba(255,255,255,0.05);
}

.faq-answer {
    padding: 0 1.5rem;
    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 1.5rem 1.5rem 1.5rem;
    max-height: 200px;
}

.faq-item .arrow {
    transition: transform 0.3s;
}

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

/* Knowledge Base */
.kb-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.kb-card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid rgba(255,255,255,0.1);
    display: block;
    transition: all 0.3s;
}

.kb-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
    background: rgba(59, 130, 246, 0.1);
}

.kb-card h4 {
    margin-bottom: 0.5rem;
    color: var(--primary);
}

.kb-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Footer */
footer {
    background: var(--bg-darker);
    backdrop-filter: blur(10px);
    padding: 3rem 5%;
    text-align: center;
    border-top: 1px solid rgba(255,255,255,0.05);
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

footer p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    .hero-content h1 {
        font-size: 2.5rem;
    }
    .pricing-card.popular {
        transform: none;
    }
    .pricing-card.popular:hover {
        transform: translateY(-5px);
    }
}