:root {
    --bg-color: #0F172A;
    --card-bg: rgba(30, 41, 59, 0.7);
    --primary: #F43F5E;
    --secondary: #FB923C;
    --text-white: #F8FAFC;
    --text-dim: #94A3B8;
    --glass: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

/* Background Animation */
.bg-gradient {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 30%, rgba(244, 63, 94, 0.15), transparent 40%),
        radial-gradient(circle at 80% 70%, rgba(251, 146, 60, 0.15), transparent 40%);
    z-index: -1;
}

/* Header */
header {
    padding: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    backdrop-filter: blur(10px);
    z-index: 100;
    border-bottom: 1px solid var(--glass-border);
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(to right, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.05em;
}

/* Hero Section */
.hero {
    min-height: 90vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 4rem 2rem;
}

.hero h1 {
    font-size: 4.5rem;
    font-weight: 900;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    letter-spacing: -0.02em;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-dim);
    max-width: 600px;
    margin-bottom: 3rem;
}

.cta-button {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 700;
    color: white;
    background: linear-gradient(to right, var(--primary), var(--secondary));
    border: none;
    border-radius: 999px;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 10px 25px -5px rgba(244, 63, 94, 0.4);
    text-decoration: none;
}

.cta-button:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 15px 30px -5px rgba(244, 63, 94, 0.6);
}

/* Features Section */
.features {
    padding: 8rem 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    padding: 3rem;
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    border-radius: 32px;
    transition: transform 0.3s ease, border-color 0.3s ease;
    backdrop-filter: blur(5px);
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary);
}

.feature-card h3 {
    font-size: 1.75rem;
    margin: 1.5rem 0 1rem;
}

.feature-card p {
    color: var(--text-dim);
}

/* App Icon Mockup in Hero */
.app-icon-mock {
    width: 180px;
    height: 180px;
    margin-bottom: 3rem;
    border-radius: 40px;
    box-shadow: 0 30px 60px -12px rgba(0, 0, 0, 0.5);
    position: relative;
    overflow: hidden;
    background: #0F172A;
    border: 4px solid var(--glass-border);
}

.app-icon-mock img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

.reveal {
    opacity: 0;
    transition: all 0.8s ease-out;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 3rem;
    }
}