.kbz-converter {
    --kbz-converter-accent: #6d9ac8;
    --kbz-converter-accent-rgb: 109, 154, 200;
    --kbz-converter-accent-dark: #4f7eab;
    --kbz-converter-border: #d1d5db;
    --kbz-converter-bg: #fff;
    --kbz-converter-muted: #f9fafb;
    --kbz-converter-surface: #f3f4f6;
    --kbz-converter-text: #111827;
    --kbz-converter-label: #374151;
    --kbz-converter-hint: #6b7280;
    --kbz-converter-radius: 10px;
    --kbz-converter-radius-sm: 6px;
    --kbz-converter-gap: 1rem;
    --kbz-converter-font: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

    max-width: 720px;
    margin: 1rem auto;
    padding: 1.25rem;
    background: var(--kbz-converter-bg);
    border: 1px solid var(--kbz-converter-border);
    border-radius: var(--kbz-converter-radius);
    font-family: var(--kbz-converter-font);
    color: var(--kbz-converter-text);
    line-height: 1.45;
    box-sizing: border-box;
    user-select: none;
    -webkit-user-select: none;
    -webkit-touch-callout: none;
}

.kbz-converter *,
.kbz-converter *::before,
.kbz-converter *::after {
    box-sizing: border-box;
}

.kbz-converter-mount:not([data-kbz-mounted]) {
    min-height: 14rem;
}

.kbz-converter__workspace {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.kbz-converter__section {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.kbz-converter__section-title {
    margin: 0;
    font-size: 0.8125rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    color: var(--kbz-converter-hint);
}

.kbz-converter__grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem;
}

@media (max-width: 520px) {
    .kbz-converter {
        padding: 1rem;
    }

    .kbz-converter__grid {
        grid-template-columns: 1fr;
    }
}

.kbz-converter__field {
    margin: 0;
    min-width: 0;
}

.kbz-converter__label {
    display: block;
    margin-bottom: 0.35rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--kbz-converter-label);
}

.kbz-converter__select {
    width: 100%;
    min-height: 2.75rem;
    padding: 0.55rem 2rem 0.55rem 0.75rem;
    font: inherit;
    font-size: 1rem;
    line-height: 1.25;
    color: var(--kbz-converter-text);
    background: var(--kbz-converter-bg);
    border: 1px solid var(--kbz-converter-border);
    border-radius: var(--kbz-converter-radius-sm);
    cursor: pointer;
    outline: none;
    box-shadow: 0 0 0 3px transparent;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
    -webkit-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%236b7280' d='M1.41 0L6 4.58 10.59 0 12 1.41l-6 6-6-6z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 12px 8px;
    user-select: text;
    -webkit-user-select: text;
    -webkit-touch-callout: default;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.kbz-converter__select--empty {
    color: #9ca3af;
}

.kbz-converter__select:hover {
    border-color: #9ca3af;
}

.kbz-converter__select:focus,
.kbz-converter__select:focus-visible {
    outline: none;
    border-color: var(--kbz-converter-accent);
    box-shadow: 0 0 0 3px rgba(var(--kbz-converter-accent-rgb), 0.22);
}

.kbz-converter__hint {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    margin: 0.75rem 0 0;
    padding: 0.65rem 0.85rem;
    font-size: 0.875rem;
    color: var(--kbz-converter-label);
    background: var(--kbz-converter-surface);
    border-left: 3px solid var(--kbz-converter-accent);
    border-radius: 0 var(--kbz-converter-radius-sm) var(--kbz-converter-radius-sm) 0;
}

.kbz-converter__hint[hidden] {
    display: none;
}

.kbz-converter__hint::before {
    content: "";
    flex-shrink: 0;
    width: 1.125rem;
    height: 1.125rem;
    margin-top: 0.05rem;
    background-color: var(--kbz-converter-accent);
    -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath fill='%23000' fill-rule='evenodd' d='M18 10a8 8 0 11-16 0 8 8 0 0116 0zM9 8a1 1 0 012 0v4a1 1 0 11-2 0V8zm1-3a1 1 0 100 2 1 1 0 000-2z' clip-rule='evenodd'/%3E%3C/svg%3E");
    mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath fill='%23000' fill-rule='evenodd' d='M18 10a8 8 0 11-16 0 8 8 0 0116 0zM9 8a1 1 0 012 0v4a1 1 0 11-2 0V8zm1-3a1 1 0 100 2 1 1 0 000-2z' clip-rule='evenodd'/%3E%3C/svg%3E");
    -webkit-mask-repeat: no-repeat;
    mask-repeat: no-repeat;
    -webkit-mask-position: center;
    mask-position: center;
    -webkit-mask-size: contain;
    mask-size: contain;
}

.kbz-converter__result {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    justify-content: center;
    gap: 0.35rem 0.5rem;
    min-height: 3.25rem;
    padding: 0.85rem 1rem;
    background: linear-gradient(135deg, var(--kbz-converter-accent), var(--kbz-converter-accent-dark));
    color: #fff;
    border-radius: var(--kbz-converter-radius-sm);
    transition: opacity 0.2s ease;
}

.kbz-converter__result-label {
    font-size: 0.95rem;
    font-weight: 600;
    opacity: 0.92;
}

.kbz-converter__result-value {
    margin: 0;
    font-size: 1.35rem;
    font-weight: 700;
    line-height: 1.2;
    font-variant-numeric: tabular-nums;
    letter-spacing: 0.02em;
}

.kbz-converter__result-unit {
    font-size: 0.95rem;
    font-weight: 600;
    opacity: 0.9;
}

.kbz-converter__result--pending .kbz-converter__result-value {
    font-size: 1.1rem;
    font-weight: 500;
    opacity: 0.75;
}

.kbz-converter__result--updated {
    animation: kbz-converter-pulse 0.35s ease;
}

@keyframes kbz-converter-pulse {
    0% { transform: scale(1); }
    40% { transform: scale(1.015); }
    100% { transform: scale(1); }
}

.elementor-element .kbz-converter {
    pointer-events: auto;
    position: relative;
    z-index: 2;
}