:root {
    --primary: #ff85a1; /* Soft Puff Pink */
    --primary-hover: #ff6b8e;
    --secondary: #a185ff; /* Soft Cloud Purple */
    --accent: #ffd166; /* Warm Creamsicle */
    --bg-main: #fffafb; /* Creamy White */
    --bg-alt: #f0f4f8; /* Soft Sky Blue for contrast */
    --text-dark: #2d3436;
    --text-muted: #636e72;
    --glass: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 133, 161, 0.2);
    --shadow: 0 10px 30px rgba(255, 133, 161, 0.1);
}

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

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

/* Background Effect - Soft Clouds & Floating Puffs */
.bg-glow {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: 
        radial-gradient(circle at 10% 20%, rgba(255, 133, 161, 0.1), transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(161, 133, 255, 0.1), transparent 40%),
        radial-gradient(circle at 50% 50%, rgba(255, 209, 102, 0.05), transparent 50%);
    z-index: -1;
    overflow: hidden;
}

.puff-container {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
}

.puff {
    position: absolute;
    background: white;
    filter: blur(40px);
    border-radius: 50%;
    opacity: 0.4;
    animation: float 20s infinite ease-in-out;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -50px) scale(1.1); }
    66% { transform: translate(-20px, 20px) scale(0.9); }
}

/* Navbar */
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 8%;
    position: sticky;
    top: 0;
    background: var(--glass);
    backdrop-filter: blur(15px);
    z-index: 100;
    border-bottom: 1px solid var(--glass-border);
    box-shadow: var(--shadow);
}

.logo {
    font-size: 1.6rem;
    font-weight: 900;
    letter-spacing: -1px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links a {
    color: var(--text-dark);
    text-decoration: none;
    margin-left: 2rem;
    font-weight: 600;
    transition: all 0.3s;
    font-size: 0.95rem;
}

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

/* Hero Section */
.hero {
    min-height: 85vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 0 10%;
}

.hero h1 {
    font-size: clamp(3.5rem, 10vw, 5.5rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #2d3436 20%, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: fadeInDown 1s ease-out;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 650px;
    margin-bottom: 3rem;
    animation: fadeInUp 1s ease-out 0.3s forwards;
    opacity: 0;
}

.cta-button {
    padding: 1.2rem 3rem;
    font-size: 1.2rem;
    font-weight: 800;
    color: #fff;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border: none;
    border-radius: 100px;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 15px 35px rgba(255, 133, 161, 0.3);
}

.cta-button:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 20px 40px rgba(255, 133, 161, 0.4);
}

/* Sections */
section {
    padding: 10rem 10%;
}

.section-title {
    font-size: 3rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 5rem;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 5px;
    background: var(--primary);
    border-radius: 10px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 3rem;
}

.card {
    background: #fff;
    border: 1px solid rgba(0,0,0,0.03);
    padding: 3.5rem 2.5rem;
    border-radius: 40px;
    transition: all 0.4s;
    box-shadow: 0 5px 15px rgba(0,0,0,0.02);
}

.card:hover {
    transform: translateY(-15px);
    box-shadow: 0 30px 60px rgba(255, 133, 161, 0.1);
}

.card h3 {
    font-size: 1.6rem;
    margin-bottom: 1.2rem;
    color: var(--primary);
}

.card p {
    color: var(--text-muted);
    font-size: 1.05rem;
}

/* Nodes Section */
.nodes-section {
    background: var(--bg-alt);
    border-radius: 80px 80px 0 0;
}

.node-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 2rem;
}

.node-card {
    background: #fff;
    padding: 2rem;
    border-radius: 30px;
    text-align: center;
    transition: transform 0.3s;
    box-shadow: 0 10px 20px rgba(0,0,0,0.03);
}

.node-card:hover {
    transform: scale(1.05);
}

.node-flag {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.node-name {
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 0.8rem;
}

.latency {
    font-size: 0.9rem;
    padding: 0.4rem 1.2rem;
    border-radius: 100px;
    font-weight: 600;
    display: inline-block;
}

.latency.low {
    color: #27ae60;
    background: rgba(39, 174, 96, 0.1);
}

.latency.mid {
    color: #f39c12;
    background: rgba(243, 156, 18, 0.1);
}

/* Pricing Section */
.pricing-section {
    text-align: center;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-top: 5rem;
}

.pricing-card {
    background: #fff;
    padding: 4rem 2.5rem;
    border-radius: 50px;
    border: 2px solid transparent;
    transition: all 0.4s;
    box-shadow: 0 20px 40px rgba(0,0,0,0.05);
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
}

.pricing-card.featured {
    border-color: var(--primary);
    transform: scale(1.05);
    background: linear-gradient(to bottom, #fff, #fffafb);
}

.pricing-card.featured .badge {
    position: absolute;
    top: -20px;
    background: var(--primary);
    color: #fff;
    padding: 0.6rem 1.5rem;
    border-radius: 50px;
    font-weight: 800;
    font-size: 0.9rem;
    box-shadow: 0 10px 20px rgba(255, 133, 161, 0.3);
}

.pricing-card h3 {
    font-size: 2rem;
    margin-bottom: 2rem;
}

.price {
    font-size: 4.5rem;
    font-weight: 900;
    margin-bottom: 0.5rem;
    color: #2d3436;
}

.price span { font-size: 1.5rem; vertical-align: super; }
.price em { font-style: normal; font-size: 1.2rem; color: var(--text-muted); }

.pricing-features {
    margin: 1.5rem 0;
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.95rem;
}

.pricing-features p {
    margin-bottom: 0.5rem;
}

.price-btn {
    width: 100%;
    padding: 1.3rem;
    border-radius: 100px;
    background: var(--bg-alt);
    color: var(--text-dark);
    font-weight: 800;
    text-decoration: none;
    transition: all 0.3s;
}

.pricing-card.featured .price-btn {
    background: var(--primary);
    color: #fff;
}

.price-btn:hover {
    background: var(--secondary);
    color: #fff;
    transform: scale(1.05);
}

/* Article Styling */
.article-page {
    background-color: #f8f9fa; /* Different background for knowledge base */
}

.article-container {
    max-width: 900px;
    margin: 6rem auto;
    padding: 4rem;
    background: #fff;
    border-radius: 40px;
    box-shadow: 0 40px 100px rgba(0,0,0,0.05);
}

/* Animations */
@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-40px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(40px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Footer */
footer {
    padding: 6rem 10%;
    background: #2d3436;
    color: #fff;
    text-align: center;
    border-radius: 80px 80px 0 0;
}

.footer-links a {
    color: rgba(255,255,255,0.6);
    text-decoration: none;
    margin: 0 1.5rem;
    transition: color 0.3s;
}

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

@media (max-width: 768px) {
    .pricing-card.featured { transform: scale(1); }
    section { padding: 6rem 5%; }
}