/* General Styles */
:root {
    --primary-color: #6a11cb; /* Vibrant purple */
    --secondary-color: #2575fc; /* Bright blue */
    --background-color: #121212; /* Very dark grey */
    --surface-color: #1e1e1e; /* Slightly lighter dark grey */
    --text-color: #e0e0e0; /* Light grey for text */
    --text-secondary: #a0a0a0; /* Dimmer grey */
    --accent-color: #00ff9d; /* Neon green accent */
    --gradient: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden; /* Prevent horizontal scroll */
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    text-align: center;
    color: var(--accent-color);
}

h3 {
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--secondary-color);
}

/* Header & Navigation */
header {
    background-color: rgba(18, 18, 18, 0.8); /* Semi-transparent dark */
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

nav .logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent-color);
    text-transform: uppercase;
    letter-spacing: 1px;
}

nav ul {
    list-style: none;
    display: flex;
}

nav ul li {
    margin-left: 2rem;
}

nav ul li a {
    color: var(--text-color);
    font-weight: 600;
    transition: color 0.3s ease;
}

nav ul li a:hover {
    color: var(--accent-color);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 6rem 0 2rem;
    background: var(--gradient);
    color: #fff;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(18, 18, 18, 0.5); /* Dark overlay */
    z-index: 1;
}

.hero .container {
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-size: 4rem; /* Larger */
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    color: rgba(255, 255, 255, 0.9);
}

.cta-button {
    display: inline-block;
    background: var(--accent-color);
    color: var(--background-color);
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 700;
    border-radius: 50px;
    text-transform: uppercase;
    transition: transform 0.3s ease, background-color 0.3s ease;
    margin-top: 1rem;
}

.cta-button:hover {
    background: var(--secondary-color);
    color: #fff;
    transform: translateY(-3px);
}

.cta-button i {
    margin-right: 0.5rem;
}

.app-preview {
    margin-top: 3rem;
    color: rgba(255, 255, 255, 0.7);
}

/* General Section Styling */
section {
    padding: 5rem 0;
}

section:nth-child(even) {
    background-color: var(--surface-color);
}

/* Features Section */
.features .feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-item {
    background-color: var(--surface-color);
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.feature-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0, 255, 157, 0.1);
}

.feature-item i {
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.feature-item.premium-feature h3::after {
    content: 'Premium';
    display: inline-block;
    background: var(--primary-color);
    color: #fff;
    font-size: 0.7rem;
    padding: 2px 6px;
    border-radius: 4px;
    margin-left: 8px;
    vertical-align: middle;
}

/* How It Works Section */
.how-it-works {
    background-color: var(--background-color); /* Consistent background */
}

.steps-container {
    display: flex;
    flex-wrap: wrap; /* Allow wrapping on smaller screens */
    justify-content: space-around;
    align-items: center;
    margin-top: 3rem;
}

.step {
    text-align: center;
    max-width: 250px; /* Limit width */
    padding: 1rem;
    margin: 1rem; /* Add margin for spacing */
}

.step-number {
    width: 50px;
    height: 50px;
    background: var(--gradient);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 1rem;
}

.step i {
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.step-arrow {
    font-size: 2.5rem;
    color: var(--accent-color);
    margin: 1rem; /* Spacing */
    display: none; /* Hide by default, show on larger screens */
}

/* Premium Section */
.premium {
    text-align: center;
    background: var(--gradient);
    color: #fff;
}

.premium h2 {
    color: #fff; /* White heading on gradient */
}

.premium p {
    color: rgba(255, 255, 255, 0.9);
    max-width: 700px;
    margin: 0 auto 1.5rem auto;
}

.premium ul {
    list-style: none;
    display: inline-block;
    text-align: left;
    margin-top: 1.5rem;
}

.premium ul li {
    margin-bottom: 0.8rem;
    font-size: 1.1rem;
}

.premium ul li i {
    color: var(--accent-color);
    margin-right: 0.8rem;
}

/* Download CTA Section */
.download-cta {
    text-align: center;
    background-color: var(--surface-color);
}

/* Footer */
footer {
    background-color: var(--background-color);
    color: var(--text-secondary);
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-links {
    list-style: none;
    padding: 0;
    margin-top: 1rem;
}

.footer-links li {
    display: inline-block;
    margin: 0 1rem;
}

.footer-links a {
    color: var(--text-secondary);
}

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

/* Animation */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

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

/* Add delays for staggered effect */
.feature-item:nth-child(1) { transition-delay: 0.1s; }
.feature-item:nth-child(2) { transition-delay: 0.2s; }
.feature-item:nth-child(3) { transition-delay: 0.3s; }
.feature-item:nth-child(4) { transition-delay: 0.4s; }
.feature-item:nth-child(5) { transition-delay: 0.5s; }
.feature-item:nth-child(6) { transition-delay: 0.6s; }

.step:nth-child(1) { transition-delay: 0.1s; }
.step:nth-child(3) { transition-delay: 0.2s; } /* Adjust index due to arrows */
.step:nth-child(5) { transition-delay: 0.3s; }

/* Simple Page Styling (Terms/Privacy) */
.simple-page-content {
    padding: 4rem 0;
    min-height: 60vh;
}

.simple-page-content h1 {
    font-size: 2.8rem;
    color: var(--accent-color);
    margin-bottom: 2rem;
    text-align: center;
}

.simple-page-content h2 {
    font-size: 1.8rem;
    color: var(--text-color);
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    text-align: left;
}

.simple-page-content p {
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.8rem;
    }

    .hero p {
        font-size: 1rem;
    }

    nav ul {
        display: none; /* Hide desktop nav */
        /* Add styles for a mobile menu if implemented */
    }

    .steps-container {
        flex-direction: column;
    }
    
    .step-arrow {
        display: none; /* Hide arrows on mobile */
    }

    h2 {
        font-size: 2rem;
    }
}

@media (min-width: 769px) {
    /* Show arrows between steps only on larger screens */
    .step-arrow {
        display: block;
    }
}