:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --secondary: #0f172a;
    --bg-color: #020617;
    --card-bg: #0f172a;
    --card-border: #1e293b;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --accent: #38bdf8;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.2s ease;
}

/* Typography */
h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

h1 span {
    background: linear-gradient(to right, var(--accent), var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

p {
    color: var(--text-muted);
    font-size: 1.125rem;
    margin-bottom: 2rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.2s ease;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--primary);
    color: white;
    box-shadow: 0 4px 14px 0 rgba(37, 99, 235, 0.39);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
    border: 1px solid var(--card-border);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    background: rgba(2, 6, 23, 0.8);
    backdrop-filter: blur(12px);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 100;
    border-bottom: 1px solid var(--card-border);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 800;
    font-size: 1.25rem;
    letter-spacing: -0.02em;
}

.logo svg {
    color: var(--accent);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a:not(.btn) {
    font-weight: 600;
    font-size: 0.9rem;
}

.nav-links a:not(.btn):hover {
    color: var(--accent);
}

/* Hero Section */
.hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10rem 5% 6rem;
    min-height: 100vh;
    position: relative;
    overflow: hidden;
}

/* Background Glow */
.hero::before {
    content: '';
    position: absolute;
    top: -10%;
    right: -5%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.15) 0%, rgba(2, 6, 23, 0) 70%);
    border-radius: 50%;
    z-index: -1;
}

.hero-content {
    flex: 1;
    max-width: 600px;
    z-index: 1;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

/* Hero Graphics (Animated UI Elements) */
.hero-graphics {
    flex: 1;
    position: relative;
    height: 400px;
    display: flex;
    justify-content: center;
    align-items: center;
    perspective: 1000px;
}

.floating-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 1rem;
    padding: 1.5rem;
    position: absolute;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    transition: transform 0.5s ease;
}

.floating-card:hover {
    transform: translateY(-10px) scale(1.02) !important;
}

.card-title {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
}

.card-bar {
    height: 8px;
    border-radius: 4px;
    margin-bottom: 0.5rem;
}

.bg-green { background: #10b981; width: 100%; }
.bg-blue { background: #3b82f6; width: 100%; }
.short { width: 40%; }
.medium { width: 70%; }

.card-circle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    border: 4px solid var(--accent);
    border-top-color: transparent;
    animation: spin 3s linear infinite;
}

@keyframes spin { 100% { transform: rotate(360deg); } }

.card-1 {
    top: 10%;
    left: 10%;
    width: 200px;
    transform: rotate(-5deg) translateZ(20px);
    animation: float 6s ease-in-out infinite;
}

.card-2 {
    bottom: 10%;
    right: 10%;
    width: 240px;
    transform: rotate(5deg) translateZ(40px);
    animation: float 7s ease-in-out infinite 1s;
}

.card-3 {
    top: 40%;
    left: 40%;
    transform: translateZ(60px);
    animation: float 5s ease-in-out infinite 2s;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(var(--r, 0deg)); }
    50% { transform: translateY(-15px) rotate(var(--r, 0deg)); }
}

/* Features */
.features {
    padding: 6rem 5%;
    background: #040d21;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem;
}

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

.feature-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 1rem;
    padding: 2.5rem 2rem;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
    box-shadow: 0 10px 30px rgba(37, 99, 235, 0.1);
}

.feature-card .icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(37, 99, 235, 0.1);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.feature-card .icon svg {
    width: 24px;
    height: 24px;
}

.feature-card p {
    font-size: 1rem;
    margin-bottom: 0;
}

/* Footer */
footer {
    padding: 4rem 5% 2rem;
    border-top: 1px solid var(--card-border);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 2rem;
    margin-bottom: 3rem;
}

.footer-brand .logo {
    margin-bottom: 1rem;
}

.footer-links h4, .footer-contact h4 {
    color: var(--text-main);
    font-weight: 600;
    margin-bottom: 1rem;
}

.footer-links a {
    display: block;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

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

.footer-contact p {
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.footer-bottom {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
    padding-top: 2rem;
    border-top: 1px solid var(--card-border);
}

@media (max-width: 768px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 8rem;
    }
    
    .hero-graphics {
        width: 100%;
        margin-top: 3rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .nav-links {
        display: none;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}