@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;600;800&display=swap');

:root {
    --primary: #00A6FB;
    --primary-dark: #0056D2;
    --secondary: #051923;
    --text-main: #2D3436;
    --text-muted: #636E72;
    --bg-light: #F8FAFC;
    --bg-white: #FFFFFF;
    --glass: rgba(255, 255, 255, 0.8);
    --border: rgba(0, 0, 0, 0.05);
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-light);
    background-image: 
        radial-gradient(at 0% 0%, rgba(0, 166, 251, 0.05) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(0, 86, 210, 0.05) 0px, transparent 50%);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* Background Decorations */
.bg-blobs {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

.blob {
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 166, 251, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    filter: blur(80px);
    animation: blob-float 20s infinite alternate cubic-bezier(0.45, 0, 0.55, 1);
}

.blob-1 { top: -100px; right: -100px; animation-duration: 25s; }
.blob-2 { bottom: -100px; left: -100px; background: radial-gradient(circle, rgba(0, 86, 210, 0.08) 0%, transparent 70%); animation-duration: 30s; }

@keyframes blob-float {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(100px, 100px) scale(1.2); }
}

.floating-birds {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.bird-svg {
    position: absolute;
    fill: rgba(0, 166, 251, 0.15);
    animation: bird-flight 15s infinite linear;
}

@keyframes bird-flight {
    0% { transform: translate(-100px, 100px) rotate(0deg); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translate(calc(100vw + 100px), -100px) rotate(-10deg); opacity: 0; }
}

.bird-1 { top: 20%; animation-duration: 25s; }
.bird-2 { top: 40%; animation-duration: 35s; animation-delay: -10s; }
.bird-3 { top: 70%; animation-duration: 30s; animation-delay: -5s; }

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

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header */
header {
    height: 80px;
    display: flex;
    align-items: center;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--glass);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
}

.header-inner {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo span {
    color: var(--secondary);
}

nav ul {
    display: flex;
    gap: 2rem;
}

nav ul li a {
    font-weight: 500;
    color: var(--text-muted);
}

nav ul li a:hover {
    color: var(--primary);
}

.btn-header {
    background: var(--primary);
    color: white;
    padding: 0.6rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
}

.btn-header:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 166, 251, 0.3);
}

/* Hero Section */
.hero {
    padding: 160px 0 100px;
    background: radial-gradient(circle at top right, rgba(0, 166, 251, 0.05), transparent);
    position: relative;
    overflow: hidden;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 4rem;
}

.hero-content h1 {
    font-size: 4rem;
    line-height: 1.1;
    font-weight: 800;
    margin-bottom: 1.5rem;
    background: linear-gradient(to right, var(--secondary), var(--primary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-content p {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
}

.cta-group {
    display: flex;
    gap: 1rem;
}

.btn-primary {
    background: var(--primary);
    color: white;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    box-shadow: 0 10px 20px rgba(0, 166, 251, 0.2);
}

.btn-secondary {
    background: var(--bg-white);
    color: var(--secondary);
    padding: 1rem 2.5rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    border: 1px solid var(--border);
}

.btn-primary:hover, .btn-secondary:hover {
    transform: translateY(-3px);
}

.hero-image {
    position: relative;
    z-index: 1;
}

.hero-image img {
    width: 100%;
    border-radius: 30px;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.1);
    animation: floating 6s ease-in-out infinite;
}

@keyframes floating {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

/* Features */
.features {
    padding: 100px 0;
    text-align: center;
}

.section-title {
    margin-bottom: 4rem;
}

.section-title h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.feature-card {
    background: var(--bg-white);
    padding: 3rem 2rem;
    border-radius: 24px;
    border: 1px solid var(--border);
    transition: var(--transition);
}

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

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    color: var(--primary);
}

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

/* Node Status */
.nodes {
    padding: 100px 0;
    background: var(--secondary);
    color: white;
}

.node-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.node-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 1.5rem;
    border-radius: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.status-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #4cd137;
    box-shadow: 0 0 10px #4cd137;
}

/* Articles Section */
.articles-preview {
    padding: 100px 0;
}

.article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.article-card {
    background: var(--bg-white);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--border);
}

.article-img {
    height: 200px;
    background: #EBF2FA;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
}

.article-body {
    padding: 2rem;
}

.article-body h3 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.article-link {
    color: var(--primary);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

/* Footer */
footer {
    padding: 80px 0 40px;
    background: #f1f3f5;
    border-top: 1px solid var(--border);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 1.5rem;
}

.footer-col h4 {
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.footer-col ul li {
    margin-bottom: 0.8rem;
}

.footer-col ul li a {
    color: var(--text-muted);
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 992px) {
    .hero-grid { grid-template-columns: 1fr; text-align: center; }
    .hero-content h1 { font-size: 3rem; }
    .cta-group { justify-content: center; }
    .feature-grid, .article-grid { grid-template-columns: 1fr 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 600px) {
    .feature-grid, .article-grid, .footer-grid { grid-template-columns: 1fr; }
    nav { display: none; }
}