/* Premium Styling for Length Converter (All-in-One) */
.apple-glass {
    background: rgba(18, 18, 20, 0.65);
    backdrop-filter: saturate(180%) blur(24px);
    -webkit-backdrop-filter: saturate(180%) blur(24px);
    border: 1px solid rgba(255, 255, 255, 0.08);
}
html.dark .apple-glass {
    background: rgba(10, 10, 14, 0.75);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.apple-card {
    background: rgba(29, 29, 31, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.06);
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.apple-card:hover {
    border-color: rgba(52, 211, 153, 0.25);
    box-shadow: 0 10px 30px -10px rgba(52, 211, 153, 0.15);
}



.custom-dist-input {
    background: rgba(9, 9, 11, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.2s ease-in-out;
}

.custom-dist-input:focus {
    border-color: #34d399;
    outline: none;
    box-shadow: 0 0 15px rgba(52, 211, 153, 0.15);
}

.custom-unit-select {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%239ca3af' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 0.5rem center;
    background-repeat: no-repeat;
    background-size: 1.25em 1.25em;
    padding-right: 2rem;
}