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

body {
    font-family: Arial, sans-serif;
    background: #0f1117;
    color: white;
    padding: 16px;
    min-height: 100vh;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
}

.header h1 {
    font-size: 28px;
}

.header p {
    color: #8d93a1;
    margin-top: 5px;
}

.balance {
    background: #1b1f2a;
    padding: 10px 14px;
    border-radius: 12px;
    font-size: 16px;
}

.menu {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.card {
    background: #191d27;
    border: 1px solid #292f3d;
    border-radius: 16px;
    padding: 22px 10px;
    color: white;
    font-size: 18px;
    cursor: pointer;
}

.card:active {
    transform: scale(0.96);
}

.emoji {
    display: block;
    font-size: 42px;
    margin-bottom: 10px;
}

#content {
    margin-top: 20px;
}

.panel {
    background: #191d27;
    border: 1px solid #292f3d;
    border-radius: 16px;
    padding: 20px;
}

.panel h2 {
    margin-bottom: 10px;
}

.panel p {
    color: #a5a9b4;
}

.back {
    margin-top: 15px;
    width: 100%;
    padding: 13px;
    border: 0;
    border-radius: 12px;
    background: #8b5cf6;
    color: white;
    font-size: 16px;
}