:root {
    --primary-color: #2196F3;
    --on-primary-color: #FFFFFF;
    --primary-container: #BBDEFB;
    --on-primary-container: #0D47A1;
    --background-color: #F5F5F5;
    --surface-color: #FFFFFF;
    --text-color: #212121;
    --text-secondary-color: #757575;
    --card-color: #FFFFFF;
    --shadow-color: rgba(0, 0, 0, 0.1);
}

/* Dark Mode Class Override */
body.dark-mode {
    --primary-color: #90CAF9;
    /* Light blue for dark mode */
    --on-primary-color: #000000;
    --primary-container: #0D47A1;
    --on-primary-container: #BBDEFB;
    --background-color: #121212;
    --surface-color: #1E1E1E;
    --text-color: #E0E0E0;
    --text-secondary-color: #A0A0A0;
    --card-color: #1E1E24;
    --shadow-color: rgba(0, 0, 0, 0.3);
}

/* Nav Actions & Theme Toggle */
.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.theme-toggle {
    background: none;
    border: none;
    color: var(--text-color);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: background-color 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover {
    background-color: rgba(0, 0, 0, 0.05);
    /* Subtle hover effect */
}

body.dark-mode .theme-toggle:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* Icon Switching Logic */
.theme-toggle .sun-icon {
    display: none;
}

.theme-toggle .moon-icon {
    display: block;
}

body.dark-mode .theme-toggle .sun-icon {
    display: block;
}

body.dark-mode .theme-toggle .moon-icon {
    display: none;
}

body {
    font-family: 'Roboto', 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
    margin: 0;
    padding: 0;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
}

header {
    background-color: var(--surface-color);
    box-shadow: 0 2px 4px var(--shadow-color);
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--primary-color);
    text-decoration: none;
}

.logo-img {
    width: 40px;
    height: 40px;
    border-radius: 8px;
}

/* Responsive Logo Styles */
@media (max-width: 600px) {
    .logo-extra {
        display: none;
    }

    .logo-container {
        font-size: 1rem;
    }

    nav {
        gap: 0.5rem;
    }

    header {
        padding: 1rem;
    }
}

.hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 1rem 2rem;
    max-width: 800px;
    margin: 0 auto;
    min-height: 80vh;
    /* Ensure it takes up most of the screen */
    justify-content: center;
    position: relative;
}

/* Scroll Indicator Styles */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    cursor: pointer;
    opacity: 0.7;
    transition: opacity 0.3s;
}

.scroll-indicator:hover {
    opacity: 1;
}

.scroll-indicator span {
    display: block;
    width: 20px;
    height: 20px;
    border-bottom: 2px solid var(--primary-color);
    border-right: 2px solid var(--primary-color);
    transform: rotate(45deg);
    margin: -10px;
    animation: scroll 2s infinite;
}

.scroll-indicator span:nth-child(2) {
    animation-delay: -0.2s;
}

.scroll-indicator span:nth-child(3) {
    animation-delay: -0.4s;
}

@keyframes scroll {
    0% {
        opacity: 0;
        transform: rotate(45deg) translate(-20px, -20px);
    }

    50% {
        opacity: 1;
    }

    100% {
        opacity: 0;
        transform: rotate(45deg) translate(20px, 20px);
    }
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    background: -webkit-linear-gradient(45deg, var(--primary-color), var(--primary-container));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-secondary-color);
    margin-bottom: 2rem;
}

.cta-button {
    display: inline-block;
    background-color: var(--primary-color);
    color: var(--on-primary-color);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 4px 6px var(--shadow-color);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px var(--shadow-color);
}

.features {
    padding: 4rem 2rem;
    background-color: var(--surface-color);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

.features h2 {
    text-align: center;
    margin-bottom: 3rem;
}

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

.card {
    background-color: var(--card-color);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 4px 6px var(--shadow-color);
    transition: transform 0.3s ease;
}

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

.card h3 {
    color: var(--primary-color);
    margin-top: 0;
}

.screenshots {
    padding: 4rem 2rem;
    text-align: center;
}

.screenshot-container {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    margin-top: 2rem;
}

.screenshot-placeholder {
    width: 200px;
    height: 400px;
    background-color: var(--card-color);
    border: 2px dashed var(--text-secondary-color);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary-color);
    font-weight: 500;
}

.screenshot-img {
    width: 100%;
    max-width: 220px;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 4px 10px var(--shadow-color);
    transition: transform 0.3s ease;
}

.screenshot-img:hover {
    transform: scale(1.05);
}

footer {
    background-color: var(--surface-color);
    padding: 2rem;
    text-align: center;
    color: var(--text-secondary-color);
    margin-top: auto;
}

a {
    color: var(--primary-color);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}