body {
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Arial, sans-serif;
    background: #f5f6fa;
    min-height: 100vh;
}

.container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

h1 {
    margin-bottom: 32px;
    color: #222;
    font-size: 2.5rem;
    letter-spacing: 2px;
}

.gacha-circles {
    display: flex;
    gap: 32px;
    margin-bottom: 32px;
}

.circle {
    width: 80px;
    height: 80px;
    background: #fff;
    border-radius: 50%;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    border: 2px solid #e1e1e1;
    transition: background 0.4s cubic-bezier(.4,2,.6,1), border 0.3s;
}

button#pullBtn {
    padding: 12px 36px;
    font-size: 1.2rem;
    border: none;
    border-radius: 24px;
    background: #2980b9; /* biru aktif */
    color: #fff;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0,0,0,0.07);
    transition: background 0.2s;
}
button#pullBtn.cooldown {
    background: #111 !important;
    color: #fff;
    cursor: not-allowed;
}
button#pullBtn:not(.cooldown):hover {
    background: #3498db;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1001;
    left: 0;
    top: 0;
    width: 100vw;
    height: 100vh;
    justify-content: center;
    align-items: center;
}
.modal-content {
    background: #fff;
    padding: 32px 24px;
    border-radius: 16px;
    box-shadow: 0 4px 32px rgba(0,0,0,0.18);
    text-align: center;
    min-width: 260px;
    position: relative;
}
.close {
    position: absolute;
    right: 16px;
    top: 12px;
    font-size: 1.5rem;
    color: #888;
    cursor: pointer;
}
.overlay {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0,0,0,0.45);
}

@media (max-width: 600px) {
    .gacha-circles {
        gap: 16px;
    }
    .circle {
        width: 56px;
        height: 56px;
    }
    .modal-content {
        padding: 20px 8px;
    }
}