:root {
    --primary-color: #6c5ce7;
    --secondary-color: #a29bfe;
    --accent-color: #00b894;
    --text-color: #2d3436;
    --light-bg: #f8f9fa;
    --white: #ffffff;
    --shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    --border-radius: 20px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.container {
    width: 100%;
    max-width: 500px;
}

.app-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 35px 25px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border: 1px solid rgba(0,0,0,0.05);
    max-width: 400px;
    margin: 0 auto;
}

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

.app-logo {
    width: 120px;
    height: 120px;
    margin: 0 auto 20px;
    border-radius: 25px;
    overflow: hidden;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    border: 3px solid #fff;
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 10px;
}

h1 {
    color: var(--text-color);
    margin-bottom: 5px;
    font-size: 28px;
}

.version {
    color: #7f8c8d;
    margin-bottom: 25px;
    font-size: 14px;
}

.app-screenshots {
    display: flex;
    gap: 15px;
    margin: 25px 0;
    justify-content: center;
}

.screenshot {
    width: 80px;
    height: 150px;
    background: #f1f2f6;
    border-radius: 10px;
    overflow: hidden;
    transition: transform 0.3s ease;
}

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

.description {
    color: #636e72;
    margin-bottom: 25px;
    line-height: 1.6;
}

.features {
    text-align: left;
    margin-bottom: 30px;
}

.feature {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
    color: var(--text-color);
}

.feature i {
    color: var(--accent-color);
    margin-right: 12px;
    font-size: 18px;
    width: 24px;
    text-align: center;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 16px 32px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 17px;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 6px 20px rgba(108, 92, 231, 0.3);
    width: 100%;
    max-width: 280px;
    margin: 10px auto 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    position: relative;
    overflow: hidden;
}

.download-btn:before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: 0.5s;
}

.download-btn:hover:before {
    left: 100%;
}

.download-btn i {
    margin-right: 10px;
    font-size: 20px;
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(108, 92, 231, 0.5);
}

/* Responsive Tasarım */
@media (max-width: 576px) {
    .app-card {
        padding: 25px 20px;
        margin: 10px;
    }
    
    .app-logo {
        width: 100px;
        height: 100px;
    }
    
    h1 {
        font-size: 24px;
        margin-top: 10px;
    }
    
    .screenshot {
        width: 60px;
        height: 100px;
    }
    
    .download-btn {
        padding: 14px 25px;
        font-size: 15px;
        max-width: 100%;
    }
    
    .description {
        font-size: 15px;
        margin: 15px 0;
    }
    
    .features {
        margin: 20px 0;
    }
    
    .feature {
        font-size: 14px;
        margin-bottom: 12px;
    }
}
