:root {
    /* Light theme colors based on LightColorScheme */
    --primary: #3399FF;
    --on-primary: #FFFFFF;
    --primary-container: #E5E5EA;
    --on-primary-container: #000000;
    --secondary: #F2F2F7;
    --on-secondary: #000000;
    --secondary-container: #D1D1D6;
    --on-secondary-container: #000000;
    --tertiary: #C7C7CC;
    --on-tertiary: #000000;
    --tertiary-container: #AEAEB2;
    --on-tertiary-container: #000000;
    --background: #FFFFFF;
    --on-background: #000000;
    --surface: #F2F2F7;
    --on-surface: #000000;
    --error: #FF453A;
    --on-error: #FFFFFF;
    --surface-container: #FFFFFF;

    /* Typography */
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    
    /* Spacing */
    --spacing-small: 8px;
    --spacing-medium: 16px;
    --spacing-large: 24px;
    --spacing-xlarge: 32px;
    
    /* Border radius */
    --border-radius-small: 4px;
    --border-radius-medium: 8px;
    --border-radius-large: 12px;
    
    /* Transitions */
    --transition-speed: 0.3s;
}

[data-theme="dark"] {
    /* Dark theme colors based on DarkColorScheme */
    --primary: #3399FF;
    --on-primary: #000000;
    --primary-container: #47474A;
    --on-primary-container: #FFFFFF;
    --secondary: #8E8E93;
    --on-secondary: #FFFFFF;
    --secondary-container: #47474A;
    --on-secondary-container: #FFFFFF;
    --tertiary: #47474A;
    --on-tertiary: #FFFFFF;
    --tertiary-container: #47474A;
    --on-tertiary-container: #FFFFFF;
    --background: #000000;
    --on-background: #FFFFFF;
    --surface: #47474A;
    --on-surface: #FFFFFF;
    --error: #FF453A;
    --on-error: #000000;
    --surface-container: #000000;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--background);
    color: var(--on-background);
    line-height: 1.6;
    transition: background-color var(--transition-speed), color var(--transition-speed);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-medium);
}

/* Header Styles */
header {
    background-color: var(--surface-container);
    padding: var(--spacing-medium) 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo h1 {
    color: var(--primary);
    font-size: 1.8rem;
    font-weight: 700;
}

nav {
    display: flex;
    align-items: center;
}

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

nav ul li {
    margin-right: var(--spacing-large);
}

nav ul li a {
    color: var(--on-background);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-speed);
}

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

/* Theme Toggle */
.theme-toggle {
    position: relative;
    width: 60px;
    height: 30px;
    margin-left: var(--spacing-medium);
}

.theme-toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.theme-toggle label {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--secondary-container);
    border-radius: 30px;
    transition: var(--transition-speed);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-small);
}

.theme-toggle label:before {
    content: '';
    position: absolute;
    height: 24px;
    width: 24px;
    left: 3px;
    bottom: 3px;
    background-color: var(--on-secondary-container);
    border-radius: 50%;
    transition: var(--transition-speed);
}

.theme-toggle input:checked + label:before {
    transform: translateX(30px);
}

.theme-toggle .fa-moon {
    color: #FFFFFF;
}

.theme-toggle .fa-sun {
    color: #FFC107;
}

/* Hero Section */
.hero {
    padding: var(--spacing-xlarge) 0;
    background-color: var(--primary-container);
}

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

.hero-content {
    flex: 1;
    padding-right: var(--spacing-xlarge);
}

.hero-content h1 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-medium);
    color: var(--on-primary-container);
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-large);
    color: var(--on-primary-container);
}

.hero-image {
    flex: 1;
    text-align: center;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius-large);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

/* Button Styles */
.btn {
    display: inline-block;
    padding: var(--spacing-medium) var(--spacing-large);
    border-radius: var(--border-radius-medium);
    font-weight: 600;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    transition: background-color var(--transition-speed), transform var(--transition-speed);
}

.btn:hover {
    transform: translateY(-2px);
}

.btn-primary {
    background-color: var(--primary);
    color: var(--on-primary);
}

.btn-primary:hover {
    background-color: var(--primary);
    opacity: 0.9;
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-medium);
}

/* Features Section */
.features {
    padding: var(--spacing-xlarge) 0;
    background-color: var(--background);
}

.features h2 {
    text-align: center;
    margin-bottom: var(--spacing-xlarge);
    color: var(--on-background);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-large);
}

.feature-card {
    background-color: var(--surface);
    padding: var(--spacing-large);
    border-radius: var(--border-radius-medium);
    text-align: center;
    transition: transform var(--transition-speed);
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-card i {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: var(--spacing-medium);
}

.feature-card h3 {
    margin-bottom: var(--spacing-small);
    color: var(--on-surface);
}

.feature-card p {
    color: var(--on-surface);
}

/* Download Section */
.download {
    padding: var(--spacing-xlarge) 0;
    background-color: var(--primary-container);
    text-align: center;
}

.download h2 {
    margin-bottom: var(--spacing-medium);
    color: var(--on-primary-container);
}

.download p {
    margin-bottom: var(--spacing-large);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    color: var(--on-primary-container);
}

/* Contact Section */
.contact {
    padding: var(--spacing-xlarge) 0;
    background-color: var(--background);
}

.contact h2 {
    text-align: center;
    margin-bottom: var(--spacing-medium);
    color: var(--on-background);
}

.contact p {
    text-align: center;
    margin-bottom: var(--spacing-large);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    color: var(--on-background);
}

.contact form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: var(--spacing-medium);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-medium);
    border: 1px solid var(--tertiary);
    border-radius: var(--border-radius-medium);
    background-color: var(--surface);
    color: var(--on-surface);
    font-family: var(--font-family);
    transition: border-color var(--transition-speed);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.contact button {
    width: 100%;
    border: none;
}

/* Footer */
footer {
    background-color: var(--primary-container);
    color: var(--on-primary-container);
    padding: var(--spacing-xlarge) 0 var(--spacing-medium);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-large);
    margin-bottom: var(--spacing-large);
}

.footer-logo h2 {
    color: var(--primary);
    margin-bottom: var(--spacing-small);
}

.footer-links h3,
.footer-social h3 {
    margin-bottom: var(--spacing-medium);
}

.footer-links ul {
    list-style: none;
}

.footer-links ul li {
    margin-bottom: var(--spacing-small);
}

.footer-links ul li a {
    color: var(--on-primary-container);
    text-decoration: none;
    transition: color var(--transition-speed);
}

.footer-links ul li a:hover {
    color: var(--primary);
}

.social-icons {
    display: flex;
    gap: var(--spacing-medium);
}

.social-icons a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--surface);
    color: var(--primary);
    border-radius: 50%;
    transition: background-color var(--transition-speed), transform var(--transition-speed);
}

.social-icons a:hover {
    background-color: var(--primary);
    color: var(--on-primary);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-medium);
    border-top: 1px solid var(--tertiary);
}

/* Responsive Styles */
@media (max-width: 768px) {
    .hero .container {
        flex-direction: column;
    }

    .hero-content {
        padding-right: 0;
        margin-bottom: var(--spacing-large);
        text-align: center;
    }
    
    .cta-buttons {
        justify-content: center;
    }
    
    nav ul {
        display: none;
    }
    
    nav {
        justify-content: flex-end;
    }
    
    .theme-toggle {
        margin-left: 0;
    }
}