:root {
    --bg-color: #0b0f19;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --primary: #06b6d4;
    --primary-hover: #0891b2;
    --secondary: #8b5cf6;
    --glass-bg: rgba(30, 41, 59, 0.4);
    --glass-border: rgba(255, 255, 255, 0.1);
    --nav-height: 80px;
}

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

html {
    scroll-behavior: smooth;
}

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

/* Typography */
.gradient-text {
    background: linear-gradient(to right, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    height: var(--nav-height);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 5%;
    z-index: 1000;
    background: rgba(11, 15, 25, 0.7);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--glass-border);
}

.logo {
    font-size: 28px;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.logo .dot {
    color: var(--primary);
}

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

.nav-links a {
    color: var(--text-main);
    text-decoration: none;
    font-weight: 400;
    transition: color 0.3s ease;
}

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

.nav-cta {
    background: var(--primary);
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600 !important;
}

.nav-cta:hover {
    background: var(--primary-hover);
    color: white !important;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 16px;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 0 20px rgba(6, 182, 212, 0.4);
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(6, 182, 212, 0.6);
}

.btn-secondary {
    background: var(--glass-bg);
    color: var(--text-main);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
}

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

.btn-large {
    font-size: 20px;
    padding: 18px 40px;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: var(--nav-height);
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('bg.png');
    background-size: cover;
    background-position: center;
    opacity: 0.6;
    z-index: -1;
    mask-image: linear-gradient(to bottom, black 60%, transparent 100%);
    -webkit-mask-image: linear-gradient(to bottom, black 60%, transparent 100%);
}

.hero-content {
    text-align: center;
    max-width: 800px;
    padding: 0 20px;
}

.badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(139, 92, 246, 0.2);
    color: #c4b5fd;
    border: 1px solid rgba(139, 92, 246, 0.4);
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 24px;
}

.hero-title {
    font-size: 4.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -1.5px;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    gap: 20px;
    justify-content: center;
}

/* Sections */
.section {
    padding: 100px 5%;
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 16px;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.2rem;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.glass {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: 24px;
}

.feature-card {
    padding: 40px 30px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    border-color: rgba(6, 182, 212, 0.3);
}

.feature-icon {
    font-size: 40px;
    margin-bottom: 20px;
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.2), rgba(139, 92, 246, 0.2));
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 16px;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 1rem;
}

/* About Section */
.about-section {
    position: relative;
}

.about-container {
    display: flex;
    align-items: center;
    padding: 60px;
    overflow: hidden;
    position: relative;
}

.about-content {
    flex: 1;
    z-index: 2;
}

.about-content h2 {
    font-size: 3rem;
    margin-bottom: 24px;
}

.about-content p {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 20px;
    max-width: 600px;
}

.about-visual {
    flex: 1;
    position: relative;
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.glow-orb {
    position: absolute;
    width: 200px;
    height: 200px;
    background: var(--primary);
    filter: blur(100px);
    border-radius: 50%;
    opacity: 0.5;
    animation: float 6s ease-in-out infinite;
}

.glow-orb.purple {
    background: var(--secondary);
    right: 0;
    bottom: 0;
    animation-delay: -3s;
}

/* Footer / Download */
footer {
    text-align: center;
    padding: 100px 5% 40px;
    background: linear-gradient(to top, rgba(6, 182, 212, 0.05), transparent);
    position: relative;
}

.footer-content h2 {
    font-size: 3.5rem;
    margin-bottom: 24px;
}

.footer-content p {
    color: var(--text-muted);
    font-size: 1.2rem;
    margin-bottom: 40px;
}

.sys-req {
    margin-top: 16px;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.footer-bottom {
    margin-top: 100px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 24px;
    border-top: 1px solid var(--glass-border);
}

.footer-bottom .logo {
    font-size: 20px;
}

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

/* Animations */
@keyframes float {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-20px) scale(1.1); }
}

.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s forwards;
}

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

.scroll-reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.scroll-reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 768px) {
    .hero-title { font-size: 3rem; }
    .hero-actions { flex-direction: column; }
    .about-container { flex-direction: column; padding: 30px; }
    .about-visual { display: none; }
    .nav-links { display: none; }
    .footer-bottom { flex-direction: column; gap: 16px; }
}