:root {
    --primary-color: #1C1F26;          /* Daha yumuşak koyu gri-mavi ton */
    --secondary-color: #2A2F38;        /* Daha modern, doygun soğuk gri */
    --accent-color: #00BFA6;           /* Yenilikçi su yeşili vurgusu */
    --light-white: #F5F5F5;            /* Kırık beyaz */
    --white: #FAFAFA;                  /* Sıcak beyaz */
    --background: #ECEFF1;             /* Hafif mavi-gri arka plan */
    --yellow: #FFD54F;                 /* Sofistike amber tonu */
    --red: #EF5350;                    /* Flat red */
    --grey: #B0BEC5;                   /* Mat gri */
    --text-color: var(--primary-color);
    --background-color: var(--background);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
}

/* Header Styles */
header {
    background-color: var(--background-color);
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 5%;
    max-width: 1200px;
    margin: 0 auto;
}

.logo img {
    height: 40px;
}

.language-selector select {
    padding: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 0.9rem;
}

/* Hero Section */
.hero {
    padding: 8rem 5% 4rem;
    text-align: center;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.subtitle {
    font-size: 1.5rem;
    margin-bottom: 2rem;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

.cta-buttons img {
    height: 50px;
    transition: transform 0.3s ease;
}

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

/* Features Section */
.features {
    padding: 4rem 5%;
    max-width: 1200px;
    margin: 0 auto;
}

.features h2 {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2.5rem;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-card {
    text-align: center;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
    background-color: var(--white);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.15);
}

.feature-card img {
    width: 80px;
    height: 80px;
    margin-bottom: 1rem;
}

.feature-card h3 {
    margin-bottom: 1rem;
    color: var(--accent-color);
}

/* Screenshots Section */
.screenshots {
    padding: 4rem 5%;
    background-color: var(--light-white);
    overflow: hidden;
}

.screenshots h2 {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2.5rem;
}

.screenshot-slider {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.screenshot-container {
    overflow: hidden;
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.screenshot-track {
    display: flex;
    transition: transform 0.5s ease;
    width: 400%; /* 4 slides * 100% */
}

.screenshot-slide {
    flex: 0 0 25%; /* 100% / 4 slides */
    padding: 1rem;
    background-color: var(--white);
}

.screenshot-slide img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    display: block;
}

.slider-button {
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s ease;
    z-index: 2;
}

.slider-button:hover {
    background-color: var(--secondary-color);
}

.slider-button svg {
    fill: currentColor;
}

.slider-button.prev {
    transform: rotate(180deg);
}

.screenshot-dots {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1rem;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--grey);
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.dot.active {
    background-color: var(--accent-color);
}

/* Footer */
footer {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 4rem 5% 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.footer-section h4 {
    margin-bottom: 1rem;
    color: var(--accent-color);
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: var(--white);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    text-align: center;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
}

/* Game Modes Section */
.game-modes {
    padding: 4rem 5%;
    background-color: var(--light-white);
}

.game-modes h2 {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2.5rem;
}

.mode-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.mode-card {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.mode-card h3 {
    color: var(--accent-color);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.mode-card ul {
    list-style: none;
    padding: 0;
}

.mode-card ul li {
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.mode-card ul li:before {
    content: "•";
    color: var(--accent-color);
    position: absolute;
    left: 0;
}

/* Version Info Section */
.version-info {
    padding: 4rem 5%;
    max-width: 1200px;
    margin: 0 auto;
}

.version-info h2 {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2.5rem;
}

.version-card {
    background-color: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    max-width: 600px;
    margin: 0 auto;
}

.version-card h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.5rem;
}

.version-card .date {
    color: #666;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.version-card ul {
    list-style: none;
    padding: 0;
}

.version-card ul li {
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.version-card ul li:before {
    content: "✓";
    color: var(--primary-color);
    position: absolute;
    left: 0;
}

/* Social Media Icons */
.social-media {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-icon {
    color: var(--text-color);
    transition: all 0.3s ease;
    padding: 0.5rem;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
}

.social-icon:hover {
    color: var(--primary-color);
    transform: translateY(-3px);
    background: rgba(255, 255, 255, 0.2);
}

.social-icon svg {
    width: 20px;
    height: 20px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .subtitle {
        font-size: 1.2rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .mode-grid {
        grid-template-columns: 1fr;
    }
    
    .version-card {
        margin: 0 1rem;
    }
    
    .screenshot-slider {
        padding: 0 1rem;
    }
    
    .slider-button {
        width: 32px;
        height: 32px;
    }
    
    .social-media {
        justify-content: center;
    }
}