body {
    background: #f5f0e8;
}

.step-bg-num {
    font-size: 8rem;
    font-weight: 900;
    line-height: 1;
    position: absolute;
    top: -0.5rem;
    right: 1rem;
    pointer-events: none;
    user-select: none;
}

input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    height: 6px;
    border-radius: 99px;
    outline: none;
    cursor: pointer;
    width: 100%;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    cursor: pointer;
    border: 3px solid white;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.18);
    transition: transform 0.1s;
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}

.jar-bar {
    transition: width 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.card-hover {
    transition: box-shadow 0.2s, transform 0.2s;
}

.card-hover:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.07);
}

@keyframes shake-x {
    0%, 100% { transform: translateX(0); }
    20%       { transform: translateX(-5px); }
    40%       { transform: translateX(5px); }
    60%       { transform: translateX(-4px); }
    80%       { transform: translateX(3px); }
}

.slider-maxed {
    animation: shake-x 0.4s ease;
}

.slider-maxed::-webkit-slider-thumb {
    background: #ef4444 !important;
    border-color: #fee2e2 !important;
}

.warn-tip {
    display: none;
    font-size: 0.72rem;
    color: #ef4444;
    font-weight: 600;
    margin-top: 0.25rem;
    text-align: right;
    animation: fade-in-out 1.6s ease forwards;
}

@keyframes fade-in-out {
    0%   { opacity: 0; transform: translateY(-4px); }
    15%  { opacity: 1; transform: translateY(0); }
    70%  { opacity: 1; }
    100% { opacity: 0; }
}

input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

input[type="number"] {
    -moz-appearance: textfield;
}

#hook-monthly, #hook-result {
    font-size: 0.75rem;
}

@media (min-width: 470px) {
    #hook-monthly, #hook-result {
        font-size: 1rem;
    }
}