@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;600;800;900&family=Inter:wght@400;500;700&display=swap');

:root {
    --primary: #00f2ff;
    --primary-glow: rgba(0, 242, 255, 0.4);
    --secondary: #7000ff;
    --secondary-glow: rgba(112, 0, 255, 0.3);
    --bg-dark: #030712;
    --bg-card: rgba(17, 24, 39, 0.7);
    --text-main: #f3f4f6;
    --text-dim: #9ca3af;
    --border-light: rgba(255, 255, 255, 0.1);
    --accent-gradient: linear-gradient(135deg, var(--primary), var(--secondary));
}

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

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

h1, h2, h3, h4 {
    font-family: 'Outfit', sans-serif;
    font-weight: 800;
}

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

/* Background Grid & Orbs */
.bg-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    z-index: -2;
}

.orb {
    position: fixed;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    filter: blur(140px);
    z-index: -1;
    opacity: 0.15;
    pointer-events: none;
}

.orb-1 { top: -200px; right: -100px; background: var(--primary); animation: float 20s infinite alternate; }
.orb-2 { bottom: -100px; left: -200px; background: var(--secondary); animation: float 25s infinite alternate-reverse; }

@keyframes float {
    0% { transform: translate(0, 0); }
    100% { transform: translate(100px, 50px); }
}

/* Header & Nav */
nav {
    height: 90px;
    display: flex;
    align-items: center;
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-light);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
}

.logo {
    font-family: 'Outfit', sans-serif;
    font-size: 1.8rem;
    font-weight: 900;
    letter-spacing: -1px;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Hero Section */
.hero {
    padding: 12rem 0 8rem;
    text-align: center;
}

.hero-badge {
    background: rgba(0, 242, 255, 0.1);
    border: 1px solid var(--primary);
    color: var(--primary);
    padding: 0.5rem 1.2rem;
    border-radius: 99px;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 2rem;
    display: inline-block;
}

.hero h1 {
    font-size: 5.5rem;
    line-height: 1;
    margin-bottom: 2rem;
    letter-spacing: -3px;
}

.gradient-title {
    background: linear-gradient(to bottom, #fff 40%, #71717a 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.6rem;
    color: var(--text-dim);
    max-width: 800px;
    margin: 0 auto 3rem;
}

/* Buttons */
.btn {
    padding: 1.2rem 2.5rem;
    border-radius: 12px;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    display: inline-block;
    font-size: 1.1rem;
}

.btn-primary {
    background: var(--primary);
    color: var(--bg-dark);
    box-shadow: 0 0 20px var(--primary-glow);
}

.btn-primary:hover {
    transform: scale(1.05);
    box-shadow: 0 0 40px var(--primary-glow);
}

.btn-outline {
    border: 1px solid var(--border-light);
    color: var(--text-main);
    margin-left: 1.5rem;
    backdrop-filter: blur(5px);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: #fff;
}

/* Sections */
section { padding: 10rem 0; }

.section-label {
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 3px;
    font-size: 0.9rem;
    display: block;
    margin-bottom: 1rem;
    text-align: center;
}

.section-title {
    font-size: 3.5rem;
    text-align: center;
    margin-bottom: 5rem;
}

/* Cards & Grid */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 2.5rem;
}

.card {
    background: var(--bg-card);
    padding: 3rem;
    border-radius: 24px;
    border: 1px solid var(--border-light);
    backdrop-filter: blur(16px);
    transition: all 0.5s ease;
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: radial-gradient(circle at top right, rgba(255,255,255,0.05), transparent);
    pointer-events: none;
}

.card:hover {
    transform: translateY(-10px);
    border-color: var(--primary);
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}

.card h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
}

/* Stack Flow Visual */
.stack-visual {
    background: rgba(255,255,255,0.01);
    border: 1px solid var(--border-light);
    padding: 5rem;
    border-radius: 40px;
    margin: 4rem 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

.node {
    padding: 2rem 4rem;
    border-radius: 20px;
    border: 1px solid var(--border-light);
    background: var(--bg-card);
    text-align: center;
    min-width: 300px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.node.muai { border-bottom: 4px solid #fff; }
.node.axg { border-bottom: 4px solid var(--primary); box-shadow: 0 0 30px var(--primary-glow); }
.node.system { border-bottom: 4px solid #059669; }

/* Passport Simulation */
.passport-card {
    background: linear-gradient(135deg, #1e293b, #0f172a);
    padding: 2.5rem;
    border-radius: 20px;
    border-top: 1px solid rgba(255,255,255,0.2);
    font-family: 'Fira Code', monospace;
    position: relative;
    animation: floating 4s ease-in-out infinite;
}

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

.passport-card pre {
    color: var(--primary);
    font-size: 0.9rem;
}

/* Footer */
footer {
    background: #000;
    padding: 6rem 0;
    border-top: 1px solid var(--border-light);
}

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

.footer-logo { font-size: 2rem; margin-bottom: 1.5rem; }

@media (max-width: 768px) {
    .hero h1 { font-size: 3.5rem; }
    .footer-grid { grid-template-columns: 1fr; text-align: center; }
}