body {
    margin: 0;
    font-family: Arial, sans-serif;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;

    background: linear-gradient(270deg, #0f172a, #1e3a8a, #4f46e5, #0ea5e9);
    background-size: 800% 800%;
    animation: gradientMove 20s ease infinite;
}

@keyframes gradientMove {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.container {
    width: 90%;
    max-width: 350px;
    padding: 20px;
    border-radius: 20px;
    text-align: center;

    background: rgba(255,255,255,0.08);
    backdrop-filter: blur(15px);
    box-shadow: 0 0 25px rgba(0,0,0,0.4);

    position: relative;
    z-index: 10;
}

h2 {
    color: white;
}

p {
    color: #cbd5f5;
}

img {
    width: 100%;
    border-radius: 12px;
    margin: 10px 0;
}

/* BUTTON */
.btn {
    position: relative;
    overflow: hidden;

    display: flex;
    align-items: center;
    justify-content: center;

    width: 100%;
    padding: 16px;
    border-radius: 14px;
    margin-top: 15px;
    font-size: 15px;

    cursor: pointer;
    color: white;
    border: none;
    outline: none;

    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;

    transition: transform 0.1s;
}

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

.download {
    background: linear-gradient(135deg, #22c55e, #16a34a);
}

.copy {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
}

.number {
    color: white;
    font-size: 18px;
    margin-top: 10px;
    font-weight: bold;
}

/* NOTIF */
#notif {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%) scale(0.8);
    background: #22c55e;
    color: white;
    padding: 10px 20px;
    border-radius: 20px;
    opacity: 0;
    transition: 0.3s;
}

#notif.show {
    opacity: 1;
    transform: translateX(-50%) scale(1);
}

/* RIPPLE */
.ripple {
    position: absolute;
    border-radius: 50%;
    transform: scale(0);
    animation: rippleEffect 0.5s linear;
    background: rgba(255,255,255,0.6);
}

@keyframes rippleEffect {
    to {
        transform: scale(4);
        opacity: 0;
    }
}