* {
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body {
    margin: 0;
    min-height: 100vh;
    background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
}

.card {
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    padding: 24px;
    border-radius: 16px;
    width: 100%;
    max-width: 420px;
}

h1 {
    text-align: center;
}

.subtitle {
    text-align: center;
    opacity: 0.8;
    margin-bottom: 16px;
}

.platforms button,
.apps button {
    width: 100%;
    padding: 12px;
    margin-top: 8px;
    border: none;
    border-radius: 10px;
    font-size: 15px;
    cursor: pointer;
}

.platforms button {
    background: #ffffff;
    color: #111;
}

.apps {
    display: none;
    margin-top: 16px;
}

.apps h3 {
    margin-bottom: 8px;
}

.apps button {
    background: #2ecc71;
    color: #111;
}

.hint {
    margin-top: 16px;
    font-size: 12px;
    opacity: 0.7;
    text-align: center;
}