/* ── Panto Calculators ───────────────────────────────────────────────────── */

.panto-add-calc {
    max-width: 480px;
    margin: 0 auto;
    background: #fff;
    border: 1px solid #e8e8e8;
    border-radius: 14px;
    padding: 36px 40px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.07);
    font-family: inherit;
}

.panto-add-calc .panto-calc__title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1a1a1a;
    margin: 0 0 8px;
    border-left: none;
    padding-left: 0;
}

.panto-add-calc .panto-calc__desc {
    font-size: 0.88rem;
    color: #666;
    line-height: 1.6;
    margin: 0 0 28px;
}

/* Label + toggle row */
.panto-add-calc .panto-calc__label-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.panto-add-calc .panto-calc__label {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #888;
}

/* Toggle — segmented control */
.panto-add-calc .panto-calc__unit-toggle {
    display: flex;
    background: #f0f0f0;
    border-radius: 8px;
    padding: 3px;
    gap: 2px;
}

.panto-add-calc .panto-calc__unit-btn {
    border: none;
    border-radius: 6px;
    padding: 5px 16px;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.18s;
    background: transparent;
    color: #aaa;
}

.panto-add-calc .panto-calc__unit-btn.panto-unit-active {
    background: #fff;
    color: #7f1e1b;
    box-shadow: 0 1px 4px rgba(0,0,0,0.12);
}

/* Number input */
.panto-add-calc .panto-calc__distance-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
}

.panto-add-calc .panto-calc__number {
    flex: 1;
    padding: 11px 14px;
    border: 1.5px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    text-align: center;
    color: #1a1a1a;
    background: #fff;
    outline: none;
    -moz-appearance: textfield;
    transition: border-color 0.15s;
}

.panto-add-calc .panto-calc__number::-webkit-outer-spin-button,
.panto-add-calc .panto-calc__number::-webkit-inner-spin-button {
    -webkit-appearance: none;
}

.panto-add-calc .panto-calc__number:focus {
    border-color: #7f1e1b;
    outline: none;
    box-shadow: 0 0 0 3px rgba(127, 30, 27, 0.08);
}

.panto-add-calc .panto-calc__unit-label {
    font-size: 0.95rem;
    color: #ccc;
    min-width: 20px;
}

/* Slider — reliable cross-browser approach */
.panto-add-calc .panto-calc__slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: #e8e8e8;
    outline: none;
    cursor: pointer;
    display: block;
    border: none;
    padding: 0;
}

.panto-add-calc .panto-calc__slider::-webkit-slider-runnable-track {
    height: 6px;
    border-radius: 3px;
}

.panto-add-calc .panto-calc__slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #7f1e1b;
    cursor: pointer;
    border: 2.5px solid #fff;
    box-shadow: 0 1px 5px rgba(127,30,27,0.4);
    margin-top: -7px;
    transition: transform 0.15s;
}

.panto-add-calc .panto-calc__slider::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

.panto-add-calc .panto-calc__slider::-moz-range-track {
    height: 6px;
    border-radius: 3px;
    background: #e8e8e8;
}

.panto-add-calc .panto-calc__slider::-moz-range-progress {
    height: 6px;
    border-radius: 3px;
    background: #7f1e1b;
}

.panto-add-calc .panto-calc__slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #7f1e1b;
    cursor: pointer;
    border: 2.5px solid #fff;
    box-shadow: 0 1px 5px rgba(127,30,27,0.4);
}

.panto-add-calc .panto-calc__slider-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.7rem;
    color: #ccc;
    margin-top: 6px;
}

/* Reference shortcuts */
.panto-add-calc .panto-calc__refs {
    display: flex;
    gap: 8px;
    margin-top: 14px;
}

.panto-add-calc .panto-calc__ref {
    flex: 1;
    background: #f7f7f7;
    border: 1.5px solid #ebebeb;
    border-radius: 10px;
    padding: 10px 6px;
    text-align: center;
    cursor: pointer;
    transition: all 0.15s;
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.panto-add-calc .panto-calc__ref strong {
    font-size: 0.78rem;
    font-weight: 700;
    color: #444;
    display: block;
}

.panto-add-calc .panto-calc__ref span {
    font-size: 0.7rem;
    color: #bbb;
    display: block;
}

.panto-add-calc .panto-calc__ref:hover {
    border-color: #c8706e;
    background: #fdf5f5;
}

.panto-add-calc .panto-calc__ref.panto-ref-active {
    border-color: #7f1e1b;
    background: #fdf5f5;
}

.panto-add-calc .panto-calc__ref.panto-ref-active strong {
    color: #7f1e1b;
}

.panto-add-calc .panto-calc__ref.panto-ref-active span {
    color: #b06060;
}

/* Result */
.panto-add-calc .panto-calc__result {
    margin-top: 24px;
    padding: 28px 20px;
    background: #fdf5f5;
    border: 1.5px solid #f0d0cf;
    border-radius: 12px;
    text-align: center;
}

.panto-add-calc .panto-calc__result-label {
    font-size: 0.65rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: #c8706e;
    margin-bottom: 10px;
    display: block;
}

.panto-add-calc .panto-calc__result-value {
    font-size: 3.4rem;
    font-weight: 800;
    color: #7f1e1b;
    line-height: 1;
    margin-bottom: 10px;
    display: block;
}

.panto-add-calc .panto-calc__result-hint {
    font-size: 0.85rem;
    color: #888;
    font-style: italic;
    display: block;
}

@media (max-width: 520px) {
    .panto-add-calc {
        padding: 24px 20px;
    }

    .panto-add-calc .panto-calc__result-value {
        font-size: 2.8rem;
    }

    .panto-add-calc .panto-calc__refs {
        flex-direction: column;
    }
}

/* ── Near Vision Calculator ──────────────────────────────────────────────── */

.panto-nv-calc {
    max-width: 740px;
    margin: 0 auto;
    background: #fff;
    border: 1px solid #e8e8e8;
    border-radius: 14px;
    padding: 36px 40px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.07);
    font-family: inherit;
}

.panto-nv-calc .panto-nv__title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1a1a1a;
    margin: 0 0 8px;
    border-left: none;
    padding-left: 0;
}

.panto-nv-calc .panto-nv__desc {
    font-size: 0.88rem;
    color: #555;
    line-height: 1.6;
    margin: 0 0 28px;
}

/* Prevent theme from hyperlinking/coloring words inside desc */
.panto-nv-calc .panto-nv__desc a,
.panto-nv-calc .panto-nv__desc span:not([class]) {
    color: inherit;
    text-decoration: none;
    font-style: normal;
    font-weight: inherit;
}

.panto-nv-calc .panto-nv__section-label {
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #888;
    margin-bottom: 12px;
}

/* Eye badge */
.panto-nv-calc .panto-nv__eye-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    font-size: 0.75rem;
    font-weight: 800;
    flex-shrink: 0;
}

.panto-nv-calc .panto-nv__eye-badge--r {
    background: #7f1e1b;
    color: #fff;
}

.panto-nv-calc .panto-nv__eye-badge--l {
    background: #2c3e50;
    color: #fff;
}

/* Eyes columns */
.panto-nv-calc .panto-nv__eyes {
    display: flex;
    gap: 0;
    margin-bottom: 20px;
    border: 1.5px solid #e8e8e8;
    border-top-color: #e8e8e8 !important;
    border-radius: 12px;
    overflow: hidden;
}

/* Suppress any theme pseudo-elements that bleed a red top line */
.panto-nv-calc .panto-nv__eyes::before,
.panto-nv-calc .panto-nv__eyes::after,
.panto-nv-calc .panto-nv__add-section::before,
.panto-nv-calc .panto-nv__add-section::after {
    display: none !important;
    content: none !important;
}

.panto-nv-calc .panto-nv__eye {
    flex: 1;
    padding: 20px 18px;
    min-width: 0;
}

.panto-nv-calc .panto-nv__eye:first-child {
    background: #fafafa;
}

.panto-nv-calc .panto-nv__eye-divider {
    width: 1px;
    background: #ebebeb;
    flex-shrink: 0;
}

.panto-nv-calc .panto-nv__eye-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 16px;
}

.panto-nv-calc .panto-nv__eye-title span {
    font-size: 0.78rem;
    color: #aaa;
    font-weight: 400;
}

/* Fields row */
.panto-nv-calc .panto-nv__fields {
    display: flex;
    gap: 10px;
}

.panto-nv-calc .panto-nv__field {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 7px;
}

.panto-nv-calc .panto-nv__field label {
    font-size: 0.7rem;
    font-weight: 600;
    color: #888;
    display: block;
    line-height: 1.3;
}

/* AXE number input */
.panto-nv-calc .panto-nv__field input[type="number"] {
    width: 100%;
    padding: 9px 6px;
    border: 1.5px solid #e0e0e0;
    border-radius: 8px;
    font-size: 0.88rem;
    font-weight: 600;
    text-align: center;
    color: #1a1a1a;
    background: #fff;
    outline: none;
    transition: border-color 0.15s, box-shadow 0.15s;
    -moz-appearance: textfield;
}

.panto-nv-calc .panto-nv__field input[type="number"]::-webkit-outer-spin-button,
.panto-nv-calc .panto-nv__field input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
}

.panto-nv-calc .panto-nv__field input[type="number"]:focus {
    border-color: #7f1e1b;
    box-shadow: 0 0 0 3px rgba(127,30,27,0.07);
}

/* ── Custom combobox (SPH / CYL / AXE) ───────────────────────────────────── */

.panto-nv-calc .panto-nv__combo {
    position: relative;
}

/* Main trigger input */
.panto-nv-calc .panto-nv__combo-input {
    width: 100%;
    padding: 8px 22px 8px 10px;
    border: 1.5px solid #e8e8e8;
    border-radius: 8px;
    font-size: 0.88rem;
    font-weight: 600;
    text-align: center;
    color: #1a1a1a;
    background: #fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='8' height='5'%3E%3Cpath d='M0 0l4 5 4-5z' fill='%23ccc'/%3E%3C/svg%3E") no-repeat right 8px center;
    background-size: 8px;
    outline: none;
    cursor: pointer;
    box-sizing: border-box;
    caret-color: transparent;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.panto-nv-calc .panto-nv__combo-input:hover {
    border-color: #ccc;
}

.panto-nv-calc .panto-nv__combo--open .panto-nv__combo-input,
.panto-nv-calc .panto-nv__combo-input:focus {
    border-color: #7f1e1b;
    box-shadow: 0 0 0 3px rgba(127,30,27,0.07);
}

/* Placeholder state — greyed text when nothing selected */
.panto-nv-calc .panto-nv__combo-input--placeholder {
    color: #b8b8b8 !important;
    font-weight: 400 !important;
}

/* Dropdown — position:fixed so overflow:hidden parents never clip it */
.panto-nv-calc .panto-nv__combo-drop {
    position: fixed;
    display: none;
    flex-direction: column;
    background: #fff;
    border: 1.5px solid #e8e8e8;
    border-radius: 10px;
    overflow: hidden;
    z-index: 99999;
    box-shadow: 0 8px 28px rgba(0,0,0,0.12);
    max-height: 300px;
}

.panto-nv-calc .panto-nv__combo--open .panto-nv__combo-drop {
    display: flex;
}

/* Search input at top of dropdown */
.panto-nv-calc .panto-nv__combo-search {
    width: 100%;
    padding: 10px 14px;
    border: none;
    border-bottom: 1.5px solid #f0f0f0;
    font-size: 0.84rem;
    outline: none;
    color: #333;
    background: #fafafa;
    box-sizing: border-box;
    flex-shrink: 0;
}

.panto-nv-calc .panto-nv__combo-search::placeholder {
    color: #ccc;
}

.panto-nv-calc .panto-nv__combo-search:focus {
    background: #fff;
    border-bottom-color: #ddd;
}

/* Options list */
.panto-nv-calc .panto-nv__combo-list {
    overflow-y: auto;
    flex: 1;
}

.panto-nv-calc .panto-nv__combo-opt {
    padding: 10px 14px;
    font-size: 0.88rem;
    font-weight: 500;
    color: #1a1a1a;
    cursor: pointer;
    text-align: center;
    transition: background 0.1s;
}

.panto-nv-calc .panto-nv__combo-opt:hover {
    background: #fdf5f5;
    color: #7f1e1b;
}

.panto-nv-calc .panto-nv__combo-opt--sel {
    background: #fdf5f5;
    color: #7f1e1b;
    font-weight: 700;
}

.panto-nv-calc .panto-nv__combo-empty {
    padding: 14px 12px;
    font-size: 0.78rem;
    color: #bbb;
    text-align: center;
    font-style: italic;
}

/* ADD section */
.panto-nv-calc .panto-nv__add-section {
    padding: 18px 20px;
    background: #fafafa;
    border: 1.5px solid #e8e8e8;
    border-top-color: #e8e8e8 !important;
    border-radius: 10px;
    margin-bottom: 20px;
}

.panto-nv-calc .panto-nv__add-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 4px;
}

.panto-nv-calc .panto-nv__add-header .panto-nv__section-label {
    margin-bottom: 0;
}

.panto-nv-calc .panto-nv__add-link {
    font-size: 0.75rem;
    color: #7f1e1b;
    text-decoration: none;
    font-weight: 600;
    white-space: nowrap;
}

.panto-nv-calc .panto-nv__add-link:hover {
    text-decoration: underline;
}

.panto-nv-calc .panto-nv__add-hint {
    font-size: 0.77rem;
    color: #aaa;
    margin: 0 0 14px;
    line-height: 1.5;
}

/* Preset chips — high specificity to beat theme button styles */
.panto-nv-calc .panto-nv__add-presets {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    margin-bottom: 16px;
}

.panto-nv-calc .panto-nv__add-presets .panto-nv__add-preset {
    padding: 7px 13px;
    background: #fff;
    border: 1.5px solid #e0e0e0;
    border-radius: 7px;
    font-size: 0.83rem;
    font-weight: 700;
    color: #555;
    cursor: pointer;
    letter-spacing: 0.01em;
    transition: background 0.13s, border-color 0.13s, color 0.13s;
    line-height: 1;
    box-shadow: none;
    text-transform: none;
}

.panto-nv-calc .panto-nv__add-presets .panto-nv__add-preset:hover {
    border-color: #c8706e;
    color: #7f1e1b;
    background: #fdf5f5;
    transform: none;
}

.panto-nv-calc .panto-nv__add-presets .panto-nv__add-preset.panto-nv__add-preset--active {
    background: #7f1e1b;
    border-color: #7f1e1b;
    color: #fff;
}

/* Custom input row */
.panto-nv-calc .panto-nv__add-manual {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-top: 14px;
    border-top: 1px solid #e5e5e5;
}

.panto-nv-calc .panto-nv__add-manual-label {
    font-size: 0.68rem;
    font-weight: 700;
    color: #aaa;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    white-space: nowrap;
    cursor: default;
}

.panto-nv-calc .panto-nv__add-input {
    width: 110px;
    padding: 10px 12px;
    border: 1.5px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 700;
    text-align: center;
    color: #7f1e1b;
    background: #fff;
    outline: none;
    -moz-appearance: textfield;
    transition: border-color 0.15s;
    flex-shrink: 0;
}

.panto-nv-calc .panto-nv__add-input::-webkit-outer-spin-button,
.panto-nv-calc .panto-nv__add-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
}

.panto-nv-calc .panto-nv__add-input:focus {
    border-color: #7f1e1b;
    box-shadow: 0 0 0 3px rgba(127,30,27,0.07);
}

/* Actions row — high specificity to beat theme button styles */
.panto-nv-calc .panto-nv__actions {
    display: flex;
    gap: 10px;
}

.panto-nv-calc .panto-nv__actions .panto-nv__btn {
    padding: 14px 20px;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    letter-spacing: 0.02em;
    transition: background 0.18s, transform 0.12s, border-color 0.15s, color 0.15s;
    border: 2px solid transparent;
    line-height: 1;
    box-shadow: none;
    text-transform: none;
}

.panto-nv-calc .panto-nv__actions .panto-nv__btn--primary {
    flex: 1;
    background: #7f1e1b;
    color: #fff;
    border-color: #7f1e1b;
}

.panto-nv-calc .panto-nv__actions .panto-nv__btn--primary:hover {
    background: #6a1917;
    border-color: #6a1917;
    color: #fff;
    transform: translateY(-1px);
}

.panto-nv-calc .panto-nv__actions .panto-nv__btn--ghost {
    background: transparent;
    color: #999;
    border-color: #ddd;
    padding: 14px 22px;
    flex-shrink: 0;
}

.panto-nv-calc .panto-nv__actions .panto-nv__btn--ghost:hover {
    border-color: #bbb;
    color: #555;
    background: #f5f5f5;
    transform: none;
}

.panto-nv-calc .panto-nv__actions .panto-nv__btn:active {
    transform: translateY(0);
}

/* Error */
.panto-nv-calc .panto-nv__error {
    margin-top: 12px;
    padding: 10px 14px;
    background: #fff5f5;
    border: 1px solid #f5c6c6;
    border-radius: 7px;
    font-size: 0.85rem;
    color: #c0392b;
    text-align: center;
}

/* Result */
.panto-nv-calc .panto-nv__result {
    margin-top: 24px;
    border: 1.5px solid #e8e8e8;
    border-radius: 12px;
    overflow: hidden;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.panto-nv-calc .panto-nv__result.panto-nv__result--visible {
    opacity: 1;
    transform: translateY(0);
}

.panto-nv-calc .panto-nv__result-header {
    background: #7f1e1b;
    color: #fff;
    text-align: center;
    padding: 14px 20px;
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
}

.panto-nv-calc .panto-nv__result-eyes {
    display: flex;
    background: #fff;
}

.panto-nv-calc .panto-nv__result-eye {
    flex: 1;
    padding: 20px 18px;
}

.panto-nv-calc .panto-nv__result-eye:first-child {
    background: #fafafa;
}

.panto-nv-calc .panto-nv__result-divider {
    width: 1px;
    background: #e8e8e8;
    flex-shrink: 0;
}

.panto-nv-calc .panto-nv__result-eye-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.88rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 14px;
}

.panto-nv-calc .panto-nv__result-fields {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.panto-nv-calc .panto-nv__result-field {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    background: #fafafa;
    border-radius: 7px;
    border: 1px solid #e8e8e8;
}

.panto-nv-calc .panto-nv__rf-label {
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #aaa;
}

.panto-nv-calc .panto-nv__rf-value {
    font-size: 1.1rem;
    font-weight: 700;
    color: #7f1e1b;
}

.panto-nv-calc .panto-nv__result-note {
    text-align: center;
    padding: 12px 20px;
    font-size: 0.8rem;
    color: #999;
    margin: 0;
    border-top: 1px solid #e8e8e8;
    background: #fff;
    font-style: italic;
}

/* ── Responsive ───────────────────────────────────────────────────────────── */

/* Tablet (≤ 680px): tighten spacing but keep side-by-side eyes */
@media (max-width: 680px) {
    .panto-nv-calc {
        padding: 24px 20px;
    }

    .panto-nv-calc .panto-nv__eye {
        padding: 16px 12px;
    }

    .panto-nv-calc .panto-nv__fields {
        gap: 7px;
    }

    .panto-nv-calc .panto-nv__add-presets .panto-nv__add-preset {
        padding: 7px 11px;
        font-size: 0.82rem;
    }
}

/* Mobile (≤ 560px): stack eyes vertically so fields have room */
@media (max-width: 560px) {
    .panto-nv-calc {
        padding: 20px 14px;
        border-radius: 10px;
    }

    .panto-nv-calc .panto-nv__title {
        font-size: 1.25rem;
    }

    /* Stack R and L eyes vertically */
    .panto-nv-calc .panto-nv__eyes {
        flex-direction: column;
        border-radius: 10px;
    }

    /* Horizontal divider between stacked eyes */
    .panto-nv-calc .panto-nv__eye-divider {
        width: 100%;
        height: 1px;
    }

    .panto-nv-calc .panto-nv__eye {
        padding: 16px 14px;
    }

    .panto-nv-calc .panto-nv__eye:first-child {
        background: #fafafa;
    }

    .panto-nv-calc .panto-nv__fields {
        gap: 8px;
    }

    .panto-nv-calc .panto-nv__field label {
        font-size: 0.68rem;
    }

    /* ADD section */
    .panto-nv-calc .panto-nv__add-section {
        padding: 14px 14px;
    }

    .panto-nv-calc .panto-nv__add-presets {
        gap: 6px;
    }

    .panto-nv-calc .panto-nv__add-presets .panto-nv__add-preset {
        padding: 7px 10px;
        font-size: 0.8rem;
    }

    .panto-nv-calc .panto-nv__add-manual {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .panto-nv-calc .panto-nv__add-input {
        width: 100%;
    }

    /* Actions */
    .panto-nv-calc .panto-nv__actions {
        flex-direction: column;
        gap: 8px;
    }

    .panto-nv-calc .panto-nv__actions .panto-nv__btn--primary,
    .panto-nv-calc .panto-nv__actions .panto-nv__btn--ghost {
        width: 100%;
        text-align: center;
    }

    /* Result */
    .panto-nv-calc .panto-nv__result-eyes {
        flex-direction: column;
    }

    .panto-nv-calc .panto-nv__result-divider {
        width: 100%;
        height: 1px;
    }

    .panto-nv-calc .panto-nv__result-eye:first-child {
        background: #fafafa;
    }
}