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

body {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(145deg, #0f0c29, #302b63, #24243e);
}

.overlay {
    position: fixed;
    inset: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(6px);
    z-index: 999;
}

.card {
    background: #1e1e2f;
    padding: 40px 35px;
    border-radius: 28px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7);
    max-width: 400px;
    width: 90%;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.title {
    font-size: 28px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 6px;
}

.subtitle {
    color: #aaaac0;
    font-size: 14px;
    margin-bottom: 25px;
    line-height: 1.5;
}

.btn {
    display: block;
    width: 100%;
    padding: 14px 0;
    margin: 10px 0;
    border: none;
    border-radius: 16px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s ease;
    background: #2a2a40;
    color: #e0e0f0;
}

.btn:hover {
    transform: scale(1.02);
    filter: brightness(1.2);
}

.btn-beli {
    background: #6c5ce7;
    color: #fff;
}

.btn-info {
    background: #00b894;
    color: #fff;
}

.btn-komunitas {
    background: #fdcb6e;
    color: #1e1e2f;
}