.category-selector {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 30px;
}

.cat-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(0, 191, 166, 0.2);
    color: var(--text-main);
    padding: 10px 20px;
    border-radius: 30px;
    cursor: pointer;
    font-weight: 600;
    transition: 0.3s;
}

.cat-btn.active {
    background: var(--green);
    color: white;
    border-color: var(--green);
}

.converter-interface {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 40px;
}

.conversion-group {
    flex: 1;
    text-align: left;
}

.conversion-group label {
    display: block;
    font-size: 0.8rem;
    text-transform: uppercase;
    color: var(--text-sub);
    margin-bottom: 8px;
    letter-spacing: 1px;
}

.input-with-select {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.input-with-select input {
    width: 100%;
    padding: 15px;
    border-radius: 8px;
    border: 1px solid rgba(0, 191, 166, 0.2);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
    font-size: 1.2rem;
    font-weight: 600;
}

.input-with-select select {
    width: 100%;
    padding: 10px;
    border-radius: 8px;
    border: 1px solid rgba(0, 191, 166, 0.1);
    background: var(--card-bg);
    color: var(--text-main);
    font-family: inherit;
    cursor: pointer;
}

.swap-icon {
    font-size: 1.8rem;
    color: var(--green);
    cursor: pointer;
    transition: 0.3s;
    margin-top: 25px;
}

.swap-icon:hover {
    transform: rotate(180deg);
}

.precision-control {
    background: rgba(0, 191, 166, 0.05);
    padding: 20px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 15px;
    border: 1px solid rgba(0, 191, 166, 0.1);
}

.precision-control label {
    font-size: 0.9rem;
    font-weight: 600;
    white-space: nowrap;
}

.precision-control input[type="range"] {
    flex: 1;
    accent-color: var(--green);
}

#precisionDisplay {
    background: var(--green);
    color: white;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 700;
    min-width: 25px;
    text-align: center;
}

.tool-link-btn {
    display: inline-block;
    padding: 8px 15px;
    background: rgba(0, 191, 166, 0.05);
    color: var(--green);
    text-decoration: none;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 600;
    transition: 0.3s;
    border: 1px solid rgba(0, 191, 166, 0.1);
}

.tool-link-btn:hover {
    background: var(--green);
    color: white !important;
}

.tool-links {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 15px;
}

/* Responsive Adjustments */
@media (max-width: 600px) {
    .converter-interface {
        flex-direction: column;
        gap: 10px;
    }

    .swap-icon {
        transform: rotate(90deg);
        margin-top: 0;
    }

    .swap-icon:hover {
        transform: rotate(270deg);
    }
}

body.dark-mode .cat-btn {
    background: rgba(255, 255, 255, 0.02);
}

body.dark-mode .input-with-select input {
    background: rgba(255, 255, 255, 0.02);
}