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

body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.container {
    text-align: center;
    padding: 40px;
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
    max-width: 500px;
    margin: 20px;
}

.logo {
    width: 128px;
    height: 128px;
    margin-bottom: 24px;
    border-radius: 24px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

h1 {
    font-size: 32px;
    color: #2c3e50;
    margin-bottom: 12px;
    font-weight: 700;
}

p {
    font-size: 18px;
    color: #7f8c8d;
    margin-bottom: 32px;
    line-height: 1.5;
}

.install-btn {
    display: inline-block;
    padding: 16px 32px;
    background: #4A90D9;
    color: white;
    text-decoration: none;
    border-radius: 12px;
    font-size: 18px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(74, 144, 217, 0.3);
}

.install-btn:hover {
    background: #357ABD;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(74, 144, 217, 0.4);
}

.install-btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 10px rgba(74, 144, 217, 0.3);
}