/* ========================================
   BRILED LED Kalkulačka — Widget Styles
   Namespace: briled-calc-
   ======================================== */

.briled-calc-container {
    --br-bg: #ffffff;
    --br-surface: #f5f5f5;
    --br-accent: #D61118;
    --br-accent-soft: rgba(214, 17, 24, 0.05);
    --br-text-main: #1D1D1B;
    --br-text-muted: #5a5a58;
    --br-border: #e0e0e0;
    --br-border-hover: #cccccc;
    --br-input-bg: #ffffff;
    --br-radius: 2px;
    --br-font: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    --br-focus-shadow: 0 0 0 2px rgba(227, 30, 36, 0.25);

    font-family: var(--br-font);
    background-color: var(--br-bg);
    color: var(--br-text-main);
    max-width: 800px;
    margin: 40px auto;
    padding: 40px;
    border: 1px solid var(--br-border);
    box-sizing: border-box;
    line-height: 1.5;
}

.briled-calc-header {
    margin-bottom: 32px;
    border-left: 3px solid var(--br-accent);
    padding-left: 20px;
}

.briled-calc-header h2 {
    margin: 0 0 8px 0;
    font-size: 24px;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 700;
}

.briled-calc-header p {
    margin: 0;
    color: var(--br-text-muted);
    font-size: 14px;
}

.briled-calc-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 32px;
}

@media (max-width: 600px) {
    .briled-calc-container {
        padding: 24px;
        margin: 20px auto;
    }
    .briled-calc-grid {
        grid-template-columns: 1fr;
    }
}

.briled-calc-field {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.briled-calc-label {
    font-size: 12px;
    text-transform: uppercase;
    color: var(--br-text-muted);
    font-weight: 600;
    letter-spacing: 0.5px;
}

.briled-calc-input {
    width: 100%;
    background-color: var(--br-input-bg);
    border: 1px solid var(--br-border);
    color: var(--br-text-main);
    padding: 12px 16px;
    font-size: 16px;
    border-radius: var(--br-radius);
    box-sizing: border-box;
    transition: border-color 0.2s, box-shadow 0.2s;
    outline: none;
    font-family: var(--br-font);
}

.briled-calc-input:hover {
    border-color: var(--br-border-hover);
}

.briled-calc-input:focus {
    border-color: var(--br-accent);
    box-shadow: var(--br-focus-shadow);
}

.briled-calc-field.has-error .briled-calc-input {
    border-color: var(--br-accent);
}

.briled-calc-error-msg {
    color: var(--br-accent);
    font-size: 11px;
    min-height: 0;
    display: none;
}

.briled-calc-field.has-error .briled-calc-error-msg {
    display: block;
}

.briled-calc-select {
    appearance: none;
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%231D1D1B' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14 2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: calc(100% - 16px) center;
    padding-right: 40px;
}

.briled-calc-radio-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 4px;
}

.briled-calc-radio-wrapper {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    user-select: none;
}

.briled-calc-radio {
    appearance: none !important;
    -webkit-appearance: none !important;
    width: 18px !important;
    height: 18px !important;
    min-width: 18px !important;
    min-height: 18px !important;
    max-width: 18px !important;
    max-height: 18px !important;
    clip: auto !important;
    clip-path: none !important;
    overflow: visible !important;
    position: relative !important;
    border: 1px solid var(--br-border);
    background: var(--br-input-bg) !important;
    border-radius: 50%;
    cursor: pointer;
    flex-shrink: 0;
    transition: border-color 0.2s, background-color 0.2s;
    opacity: 1 !important;
    visibility: visible !important;
    display: block !important;
    padding: 0 !important;
    margin: 0 !important;
}

.briled-calc-radio:focus-visible {
    border-color: var(--br-accent);
    box-shadow: var(--br-focus-shadow);
}

.briled-calc-radio:checked {
    border-color: var(--br-accent);
}

.briled-calc-radio:checked::after {
    content: '';
    position: absolute;
    width: 10px;
    height: 10px;
    background-color: var(--br-accent);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.briled-calc-radio-text {
    font-size: 14px;
}

.briled-calc-btn {
    background-color: var(--br-accent);
    color: white;
    border: none;
    padding: 14px 32px;
    font-weight: 700;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    border-radius: var(--br-radius);
    transition: opacity 0.2s, transform 0.1s;
    width: fit-content;
    font-family: var(--br-font);
}

.briled-calc-btn:hover {
    opacity: 0.9;
}

.briled-calc-btn:active {
    transform: translateY(1px);
}

.briled-calc-btn:focus-visible {
    box-shadow: var(--br-focus-shadow);
    outline: none;
}

.briled-calc-results {
    margin-top: 40px;
    background-color: var(--br-surface);
    border: 1px solid var(--br-border);
    display: none;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    border-radius: var(--br-radius);
}

.briled-calc-results.is-visible {
    display: grid;
}

.briled-calc-res-item {
    padding: 24px;
    border-right: 1px solid var(--br-border);
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.briled-calc-res-item:last-child {
    border-right: none;
    background-color: var(--br-accent-soft);
}

.briled-calc-res-label {
    font-size: 11px;
    text-transform: uppercase;
    color: var(--br-text-muted);
    font-weight: 600;
}

.briled-calc-res-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--br-text-main);
}

.briled-calc-res-item.highlight .briled-calc-res-value {
    color: var(--br-accent);
}

.briled-calc-products {
    margin-top: 32px;
    display: none;
}

.briled-calc-products.is-visible {
    display: block;
}

.briled-calc-products-title {
    font-size: 13px;
    text-transform: uppercase;
    color: var(--br-text-muted);
    font-weight: 600;
    letter-spacing: 0.5px;
    margin: 0 0 16px 0;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--br-border);
}

.briled-calc-products-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.briled-calc-product {
    display: flex;
    align-items: center;
    gap: 16px;
    background-color: var(--br-surface);
    border: 1px solid var(--br-border);
    border-radius: var(--br-radius);
    padding: 16px;
    text-decoration: none;
    color: var(--br-text-main);
    transition: border-color 0.2s;
}

.briled-calc-product:hover {
    border-color: var(--br-border-hover);
}

.briled-calc-product:focus-visible {
    border-color: var(--br-accent);
    box-shadow: var(--br-focus-shadow);
    outline: none;
}

.briled-calc-product-img {
    width: 56px;
    height: 56px;
    object-fit: contain;
    flex-shrink: 0;
    background-color: #fff;
    border-radius: var(--br-radius);
    padding: 4px;
    box-sizing: border-box;
}

.briled-calc-product-info {
    flex: 1;
    min-width: 0;
}

.briled-calc-product-name {
    font-size: 14px;
    font-weight: 600;
    line-height: 1.3;
    margin: 0 0 4px 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.briled-calc-product-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 12px;
    color: var(--br-text-muted);
    flex-wrap: wrap;
}

.briled-calc-product-power {
    font-weight: 600;
    color: var(--br-text-main);
}

.briled-calc-product-price {
    margin-left: auto;
    font-size: 16px;
    font-weight: 700;
    white-space: nowrap;
    flex-shrink: 0;
}

.briled-calc-products-empty {
    font-size: 13px;
    color: var(--br-text-muted);
    padding: 16px 0;
}

@media (max-width: 600px) {
    .briled-calc-product {
        flex-wrap: wrap;
        gap: 12px;
    }
    .briled-calc-product-name {
        white-space: normal;
    }
    .briled-calc-product-price {
        margin-left: 0;
    }
}

.briled-calc-note {
    margin-top: 16px;
    font-size: 12px;
    color: var(--br-text-muted);
    line-height: 1.6;
    display: none;
}

.briled-calc-note.is-visible {
    display: block;
}

.briled-calc-container.is-loading .briled-calc-btn {
    opacity: 0.5;
    pointer-events: none;
    cursor: not-allowed;
}

.briled-calc-loading-msg {
    font-size: 13px;
    color: var(--br-text-muted);
    margin-top: 12px;
    display: none;
}

.briled-calc-container.is-loading .briled-calc-loading-msg {
    display: block;
}

.briled-calc-data-error {
    font-size: 13px;
    color: var(--br-accent);
    margin-top: 12px;
    display: none;
}

.briled-calc-data-error.is-visible {
    display: block;
}

@media (max-width: 600px) {
    .briled-calc-results {
        grid-template-columns: 1fr 1fr;
    }
    .briled-calc-res-item {
        border-bottom: 1px solid var(--br-border);
    }
    .briled-calc-res-item:nth-child(even) {
        border-right: none;
    }
}