:root {
    --bg-color: #050505;
    --text-color: #e2e8f0;
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --secondary: #1e293b;
    --secondary-hover: #334155;
    --accent: #8b5cf6;
    --card-bg: rgba(30, 41, 59, 0.7);
    --nav-bg: rgba(5, 5, 5, 0.85);
    --border-color: rgba(255, 255, 255, 0.1);
    --gradient-bg: radial-gradient(circle at 15% 50%, rgba(79, 70, 229, 0.15) 0%, transparent 35%),
                   radial-gradient(circle at 85% 30%, rgba(236, 72, 153, 0.15) 0%, transparent 35%);
}

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

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

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1.5rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--nav-bg);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-weight: 800;
    font-size: 1.5rem;
    letter-spacing: -0.5px;
}

.logo-placeholder {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 8px;
}

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

nav a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

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

/* Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    display: inline-block;
}

.btn-primary {
    background-color: var(--primary);
    color: #fff;
    box-shadow: 0 4px 14px rgba(59, 130, 246, 0.4);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.6);
}

.btn-secondary {
    background-color: var(--secondary);
    color: var(--text-color);
}

.btn-secondary:hover {
    background-color: var(--secondary-hover);
    transform: translateY(-2px);
}

.btn-outline {
    border: 1px solid var(--border-color);
    background: transparent;
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    padding: 8rem 5% 4rem;
    gap: 6rem;
    position: relative;
    text-align: left;
}

.hero-content {
    flex: 0 1 auto;
    max-width: 600px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
}

.highlight {
    color: #FF8B47;
}

.hero p {
    font-size: 1.25rem;
    color: #94a3b8;
    margin-bottom: 2.5rem;
    max-width: 600px;
}

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

/* Glass Panel Graphic */
.hero-graphic {
    flex: 0 1 auto;
    display: flex;
    justify-content: center;
}

.float-wrapper {
    animation: float 6s ease-in-out infinite;
    display: flex;
    justify-content: center;
}

.app-mockup {
    max-width: 280px;
    width: 100%;
    height: auto;
    border-radius: 2rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5), 0 0 40px rgba(255, 139, 71, 0.15);
    transform: perspective(1000px) rotateY(-15deg) rotateX(5deg);
    transition: transform 0.5s ease;
}

.app-mockup:hover {
    transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}

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

/* Features Section */
.features {
    padding: 5rem 5%;
    text-align: center;
}

.features h2 {
    font-size: 2.5rem;
    margin-bottom: 4rem;
}

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

.feature-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 3rem 2rem;
    border-radius: 16px;
    transition: all 0.4s ease;
    opacity: 0;
    transform: translateY(20px);
}

.feature-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary);
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.1);
}

.icon-placeholder {
    width: 64px;
    height: 64px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 16px;
    margin: 0 auto 1.5rem;
    border: 1px solid rgba(59, 130, 246, 0.2);
}

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

.feature-card p {
    color: #94a3b8;
}

/* Footer */
footer {
    text-align: center;
    padding: 3rem;
    border-top: 1px solid var(--border-color);
    color: #64748b;
}

/* Animations */
.fade-in-up {
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards;
}

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }
.delay-3 { animation-delay: 0.6s; }

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .hero {
        flex-direction: column;
        padding-top: 8rem;
        text-align: center;
    }
    
    .hero h1 {
        font-size: 3rem;
    }
    
    .cta-group {
        justify-content: center;
    }
    
    .glass-panel {
        transform: none;
    }
    
    nav {
        display: none;
    }
}