/**
 * Digital Services Hub — EPS Calculator Styles v3
 * Префікс: .ec- (Scoped у .ec-calculator-container)
 */

.ec-calculator-container {
    --ec-primary: #6b7280;
    --ec-accent: #2563eb;
    --ec-accent-light: #3b82f6;
    --ec-success: #059669;
    --ec-warning: #d97706;
    --ec-danger: #dc2626;
    --ec-bg-page: #f8fafc;
    --ec-bg-card: #ffffff;
    --ec-border: #e2e8f0;
    --ec-text: #1e293b;
    --ec-text-sec: #64748b;

    font-family: 'Manrope', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--ec-text);
    background-color: var(--ec-bg-page);
    padding: 24px;
    border-radius: 12px;
    line-height: 1.5;
    max-width: 100%;
}

.ec-calculator-container>p {
    display: none !important;
}

/* =================================================================
   Layout: horizontal mode (form + diagram side by side)
   ================================================================= */

.ec-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    align-items: start;
}


@media (max-width: 768px) {
    .ec-mode-horizontal .ec-layout {
        grid-template-columns: 1fr;
    }

    .ec-layout-diagram {
        position: static;
    }
}

/* =================================================================
   Layout: horizontal mode — 2×2 grid (tablet+desktop), stack (mobile)
   ================================================================= */

.ec-mode-horizontal .ec-layout {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
}

.ec-mode-horizontal .ec-layout>.ec-panel {
    margin-bottom: 0;
}

.ec-mode-horizontal .ec-grid {
    grid-template-columns: 1fr;
}

@media (min-width: 1200px) {
    .ec-mode-horizontal .ec-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .ec-mode-horizontal .ec-panel-loads .ec-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* =================================================================
   Layout: vertical mode — 2×2 grid (tablet+desktop), stack (mobile)
   ================================================================= */

.ec-mode-vertical .ec-layout {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
}

.ec-mode-vertical .ec-layout>.ec-panel,
.ec-mode-vertical .ec-layout>.ec-cell-loads {
    margin-bottom: 0;
}

.ec-cell-loads {
    min-width: 0;
}

.ec-mode-vertical .ec-grid {
    grid-template-columns: 1fr;
}

@media (min-width: 1200px) {
    .ec-mode-vertical .ec-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Vertical mode: compact field layout (label + control inline) for block 1 */
.ec-mode-vertical .ec-panel-construction .ec-field {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 4px 6px;
}

.ec-mode-vertical .ec-panel-construction .ec-field > .ec-label,
.ec-mode-vertical .ec-panel-construction .ec-field > .ec-info-tip {
    display: inline;
    white-space: normal;
}

.ec-mode-vertical .ec-panel-construction .ec-field > .ec-toggle-group {
    flex: 0 0 auto;
    max-width: none;
}

.ec-mode-vertical .ec-panel-construction .ec-static-value {
    white-space: nowrap;
    overflow: visible;
    text-overflow: unset;
}

@media (max-width: 768px) {
    .ec-mode-vertical .ec-layout {
        grid-template-columns: 1fr;
    }
}

/* =================================================================
   Panels & Grid
   ================================================================= */

.ec-panel {
    background: var(--ec-bg-card);
    border: 1px solid var(--ec-border);
    border-radius: 8px;
    padding: 12px;
    margin-bottom: 16px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    min-width: 0;
}

.ec-panel-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--ec-text);
    margin-bottom: 16px;
}

.ec-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

@media (max-width: 1024px) {
    .ec-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 680px) {
    .ec-calculator-container {
        padding: 12px;
    }

    .ec-grid {
        grid-template-columns: 1fr;
    }
}

/* =================================================================
   Forms & Inputs
   ================================================================= */

.ec-field {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 4px;
    min-width: 0;
}

/* Label row: label + info-tip inline */
.ec-field > .ec-label {
    display: inline;
}

.ec-field > .ec-info-tip {
    display: inline-flex;
    vertical-align: middle;
    margin-top: -2px;
}

/* Inputs, selects take full width below the label row */
.ec-field>.ec-select,
.ec-field>.ec-input,
.ec-field>.ec-static-value,
.ec-field>.ec-input-row,
.ec-field>.ec-input-unit {
    flex-basis: 100%;
    width: 100%;
}

/* Toggle — own line below label, compact width */
.ec-field>.ec-toggle-group {
    max-width: fit-content;
}

.ec-static-value {
    height: 42px;
    padding: 8px 12px;
    border: 1px solid var(--ec-border);
    border-radius: 6px;
    font-size: 15px;
    background: #f1f5f9;
    color: var(--ec-text);
    box-sizing: border-box;
    display: flex;
    align-items: center;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.ec-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--ec-text-sec);
    display: inline;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    min-width: 0;
}

.ec-calculator-container .ec-input,
.ec-calculator-container .ec-select {
    width: 100%;
    max-width: 100%;
    height: 42px;
    padding: 8px 12px;
    border: 1px solid var(--ec-border);
    border-radius: 6px;
    font-size: 15px;
    transition: all 0.2s ease;
    background: #fff;
    box-sizing: border-box;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.ec-calculator-container .ec-input:focus,
.ec-calculator-container .ec-select:focus {
    outline: none;
    border-color: var(--ec-accent);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* =================================================================
   Unit Toggle (input + unit select inline)
   ================================================================= */

.ec-input-unit {
    display: flex;
    gap: 0;
}

.ec-input-unit .ec-input {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
    flex: 1;
    min-width: 0;
}

.ec-unit-toggle {
    width: auto;
    min-width: 70px;
    height: 42px;
    padding: 8px 6px;
    border: 1px solid var(--ec-border);
    border-left: none;
    border-radius: 0 6px 6px 0;
    font-size: 13px;
    font-weight: 600;
    background: #f1f5f9;
    color: var(--ec-text);
    cursor: pointer;
    box-sizing: border-box;
    transition: all 0.2s ease;
}

.ec-unit-toggle:focus {
    outline: none;
    background: #e2e8f0;
}

.ec-unit-static {
    display: flex;
    align-items: center;
    min-width: 60px;
    height: 42px;
    padding: 8px 8px;
    border: 1px solid var(--ec-border);
    border-left: none;
    border-radius: 0 6px 6px 0;
    font-size: 13px;
    font-weight: 600;
    background: #f1f5f9;
    color: var(--ec-text-sec);
    box-sizing: border-box;
}

/* =================================================================
   Buttons
   ================================================================= */

.ec-calc-btn-wrap {
    margin: 16px 0;
}

.ec-calculator-container .ec-btn-primary {
    background: linear-gradient(135deg, #588da7, #005b8a);
    color: #ffffff;
    border: none;
    padding: 14px 24px;
    border-radius: 10px;
    font-weight: 700;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
}

.ec-calculator-container .ec-btn-primary:hover {
    background-color: #004a6e;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 95, 141, 0.3);
}

.ec-calculator-container .ec-btn-primary:disabled {
    background-color: #94a3b8;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* =================================================================
   SVG Diagram
   ================================================================= */

.ec-diagram-panel {
    padding: 12px;
}

.ec-diagram-wrap {
    background: #fff;
    border-radius: 8px;
    overflow: visible;
}

.ec-diagram-svg {
    width: 100%;
    height: auto;
    max-height: 280px;
    user-select: none;
    -webkit-user-select: none;
    outline: none;
}

.ec-mode-vertical .ec-diagram-svg {
    max-height: 340px;
}

/* =================================================================
   Demo Lock
   ================================================================= */

.ec-demo-lock {
    margin-top: 12px;
}

.ec-demo-lock-inner {
    background: linear-gradient(135deg, #fef3c7, #fde68a);
    border: 1px solid #f59e0b;
    border-radius: 8px;
    padding: 14px 18px;
    font-size: 14px;
    color: #92400e;
    font-weight: 600;
    text-align: center;
}

/* Disabled options in demo */
.ec-calculator-container select option:disabled {
    color: #94a3b8;
    background: #f1f5f9;
}

/* PRO Demo Lock — results block */
.ec-calculator-container .ec-pro-demo-lock {
    background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
    border: 2px dashed #f59e0b;
    border-radius: 12px;
    padding: 32px 24px;
    text-align: center;
    margin: 16px 0;
}

.ec-calculator-container .ec-pro-demo-lock__icon {
    font-size: 40px;
    margin-bottom: 12px;
    line-height: 1;
}

.ec-calculator-container .ec-pro-demo-lock__title {
    font-size: 16px;
    font-weight: 700;
    color: #92400e;
    margin-bottom: 8px;
}

.ec-calculator-container .ec-pro-demo-lock__desc {
    font-size: 13px;
    color: #a16207;
    line-height: 1.5;
    max-width: 480px;
    margin: 0 auto;
}

/* =================================================================
   Results & Verdicts
   ================================================================= */

.ec-verdict {
    padding: 16px;
    border-radius: 8px;
    border-left: 4px solid transparent;
    margin-bottom: 20px;
}

.ec-verdict--ok {
    background-color: #ecfdf5;
    border-color: var(--ec-success);
}

.ec-verdict--fail {
    background-color: #fef2f2;
    border-color: var(--ec-danger);
}

.ec-verdict-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 4px;
}

.ec-verdict--ok .ec-verdict-title {
    color: #065f46;
}

.ec-verdict--fail .ec-verdict-title {
    color: #991b1b;
}

.ec-verdict-norm {
    font-size: 13px;
    color: var(--ec-text-sec);
}

/* Results grid */
.ec-results-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 12px;
}

@media (max-width: 680px) {
    .ec-results-grid {
        grid-template-columns: 1fr;
    }
}

/* ETICS details grid (wind + adhesive + dowels) */
.ec-calculator-container .ec-etics-details-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 12px;
}

.ec-calculator-container .ec-etics-details-grid>.ec-etics-section:last-child:nth-child(odd) {
    grid-column: 1 / -1;
}

@media (max-width: 680px) {
    .ec-calculator-container .ec-etics-details-grid {
        grid-template-columns: 1fr;
    }
}

.ec-results-section {
    padding: 10px 12px;
    background: #f8fafc;
    border-radius: 6px;
}

.ec-results-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--ec-text-sec);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 10px;
}

.ec-results-subtitle {
    font-size: 12px;
    font-weight: 600;
    color: var(--ec-text-sec);
    margin: 12px 0 8px;
    padding-top: 10px;
    border-top: 1px solid var(--ec-border);
}

.ec-mesh-hint {
    font-size: 12px;
    color: var(--ec-warning);
    margin-top: 6px;
    padding: 6px 10px;
    background: #fffbeb;
    border-radius: 6px;
    border: 1px solid #fde68a;
}

/* Check rows */
.ec-check-row {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    border-radius: 6px;
    font-size: 13px;
    margin-bottom: 6px;
    flex-wrap: wrap;
}

.ec-check-row.is-ok {
    background: #ecfdf5;
    color: #065f46;
}

.ec-check-row.is-fail {
    background: #fef2f2;
    color: #991b1b;
}

.ec-badge {
    margin-left: auto;
    font-weight: 700;
    font-size: 14px;
}

/* Deformation rows */
.ec-def-rows {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.ec-def-row {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
}

.ec-def-row span {
    color: var(--ec-text-sec);
}

.ec-def-total {
    border-top: 1px solid var(--ec-border);
    padding-top: 6px;
    font-weight: 600;
}

/* Soil info section */
.ec-soil-info {
    padding: 12px;
    background: #fffbeb;
    border-radius: 6px;
    border: 1px solid #fde68a;
}

/* =================================================================
   Utilization Bars
   ================================================================= */

.ec-util-bar {
    height: 8px;
    background: #e2e8f0;
    border-radius: 4px;
    overflow: hidden;
    margin-top: 8px;
}

.ec-util-fill {
    height: 100%;
    transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 4px;
}

.ec-calculator-container .bg-success {
    background-color: var(--ec-success);
}

.ec-calculator-container .bg-warning {
    background-color: var(--ec-warning);
}

.ec-calculator-container .bg-danger {
    background-color: var(--ec-danger);
}

/* =================================================================
   Warnings & Compliance
   ================================================================= */

.ec-warn {
    background: #fffbeb;
    border: 1px solid #f59e0b;
    border-radius: 6px;
    padding: 10px 14px;
    font-size: 13px;
    color: #92400e;
    margin: 10px 0;
}

.ec-compliance {
    margin-top: 12px;
}

.ec-compliance-item {
    padding: 6px 10px;
    font-size: 12px;
    border-radius: 4px;
    margin-bottom: 4px;
}

.ec-compliance-item.is-fail {
    background: #fef2f2;
    color: #991b1b;
}

.ec-compliance-item.is-info {
    background: #eff6ff;
    color: #1e40af;
}

/* =================================================================
   Material Info Table
   ================================================================= */

.ec-material-info {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--ec-border);
}

.ec-info-table {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 8px;
}

.ec-info-table>div {
    text-align: center;
    padding: 8px;
    background: #f8fafc;
    border-radius: 6px;
}

.ec-info-table span {
    display: block;
    font-size: 11px;
    color: var(--ec-text-sec);
    margin-bottom: 2px;
}

.ec-info-table strong {
    font-size: 14px;
    color: var(--ec-text);
}

@media (max-width: 680px) {
    .ec-info-table {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* =================================================================
   Mobile
   ================================================================= */

@media (max-width: 680px) {
    .ec-calculator-container .ec-btn-primary {
        position: relative;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    }

    .ec-verdict-title {
        font-size: 16px;
    }

    .ec-unit-toggle {
        min-width: 60px;
        font-size: 12px;
    }
}

/* =================================================================
   Global Unit Toggle (panel header switcher kН/м² ↔ кг/м²)
   ================================================================= */

.ec-panel-title--with-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.ec-panel-title--with-toggle>span {
    font-size: 15px;
    font-weight: 700;
    color: var(--ec-text);
}

.ec-unit-global-toggle {
    display: flex;
    border: 1px solid var(--ec-border);
    border-radius: 6px;
    overflow: hidden;
    flex-shrink: 0;
}

.ec-unit-btn {
    background: #fff;
    border: none;
    padding: 4px 12px;
    font-size: 12px;
    font-weight: 600;
    color: var(--ec-text-sec);
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
    line-height: 1.5;
    white-space: nowrap;
}

.ec-unit-btn+.ec-unit-btn {
    border-left: 1px solid var(--ec-border);
}

.ec-unit-btn.is-active {
    background: var(--ec-accent);
    color: #fff;
}

.ec-unit-btn:hover:not(.is-active) {
    background: #f1f5f9;
    color: var(--ec-text);
}

/* =================================================================
   Toggle Group (pill-toggle: ДБН/EN, кг/м²↔кПа)
   ================================================================= */

.ec-toggle-group {
    display: inline-flex;
    border: 1px solid var(--ec-border);
    border-radius: 8px;
    overflow: hidden;
    background: #f1f5f9;
    flex-shrink: 0;
    align-self: flex-start;
}

.ec-toggle-option {
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    margin: 0;
    padding: 0;
}

.ec-toggle-option input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
    pointer-events: none;
}

.ec-toggle-option span {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px 18px;
    font-size: 13px;
    font-weight: 600;
    color: var(--ec-text-sec);
    transition: background 0.2s, color 0.2s;
    white-space: nowrap;
    line-height: 1.4;
    user-select: none;
}

.ec-toggle-option input[type="radio"]:checked+span {
    background: #588da7;
    color: #fff;
}

.ec-toggle-option:hover span {
    background: #e2e8f0;
    color: var(--ec-text);
}

.ec-toggle-option input[type="radio"]:checked:hover+span {
    background: #315c71;
    color: #fff;
}

.ec-toggle-option+.ec-toggle-option span {
    border-left: 1px solid var(--ec-border);
}

.ec-toggle-option input[type="radio"]:checked+span {
    border-color: transparent;
}

/* Toggle inside ec-input-unit (inline with input) */
.ec-input-unit .ec-toggle-group {
    border-left: none;
    border-radius: 0 8px 8px 0;
}

.ec-input-unit .ec-toggle-option span {
    padding: 8px 12px;
    font-size: 12px;
}

/* =================================================================
   Layout: loads mode — 2×2 grid (tablet+desktop), stack (mobile)
   ================================================================= */

.ec-mode-loads .ec-layout {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
}

.ec-mode-loads .ec-layout>.ec-panel,
.ec-mode-loads .ec-layout>.ec-cell-wind-soil {
    margin-bottom: 0;
}

.ec-cell-wind-soil {
    min-width: 0;
}

.ec-panel-wind-en,
.ec-panel-soil,
.ec-field-mountain-base,
.ec-field-altitude,
.ec-field-manual-weight {
    display: none;
}

.ec-mode-loads .ec-grid {
    grid-template-columns: 1fr 1fr;
}

/* Кожне поле — label зверху, контрол знизу */
.ec-mode-loads .ec-panel-building .ec-field {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 4px 6px;
}

/* Label + info-tip — перший рядок, повна ширина */
.ec-mode-loads .ec-panel-building .ec-field>.ec-label,
.ec-mode-loads .ec-panel-building .ec-field>.ec-info-tip {
    display: inline;
    white-space: normal;
}

/* Toggle та static-value — другий рядок */
.ec-mode-loads .ec-panel-building .ec-field>.ec-toggle-group {
    flex: 0 0 auto;
    max-width: none;
}

.ec-mode-loads .ec-panel-building .ec-static-value {
    white-space: nowrap;
    overflow: visible;
    text-overflow: unset;
}

@media (max-width: 1024px) {
    .ec-mode-loads .ec-panel-building .ec-grid {
        grid-template-columns: 1fr;
    }

    .ec-mode-loads .ec-panel-building .ec-static-value {
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
}

@media (max-width: 768px) {
    .ec-mode-loads .ec-layout {
        grid-template-columns: 1fr;
    }

    .ec-mode-loads .ec-grid {
        grid-template-columns: 1fr;
    }
}

/* =================================================================
   Info Tooltip (ⓘ icon + modal popup — scoped per GEMINI.md)
   Еталон: tato.cool — іконка inline з label, popup по центру екрану
   ================================================================= */

/* --- Іконка ⓘ (inline з label, як на tato.cool) --- */
.ec-calculator-container .ec-label {
    display: inline;
}

.ec-calculator-container .ec-info-tip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: none;
    background: #588da7;
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    font-style: italic;
    font-family: Georgia, serif;
    cursor: help;
    line-height: 1;
    flex-shrink: 0;
    padding: 0;
    margin-left: 6px;
    vertical-align: middle;
    transition: background 0.15s;
    user-select: none;
    position: relative;
    top: -1px;
}

.ec-calculator-container .ec-info-tip:hover,
.ec-calculator-container .ec-info-tip.is-open {
    background: #2b4c7e;
}

/* --- Popup (модальне вікно по центру, як на tato.cool) --- */
.ec-calculator-container .ec-tooltip-popup {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.95);
    width: auto;
    min-width: 260px;
    max-width: min(420px, calc(100vw - 32px));
    padding: 20px 24px;
    background: #fff;
    color: var(--ec-text);
    font-size: 14px;
    font-weight: 400;
    line-height: 1.6;
    border-radius: 14px;
    box-shadow: 0 16px 48px -8px rgba(0, 0, 0, 0.18), 0 4px 12px -2px rgba(0, 0, 0, 0.08);
    z-index: 10001;
    pointer-events: none;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s, visibility 0.2s, transform 0.2s;
}

.ec-calculator-container .ec-tooltip-popup.is-visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translate(-50%, -50%) scale(1);
}

/* Стрілка не потрібна для modal */
.ec-calculator-container .ec-tooltip-popup::after {
    display: none;
}

/* --- Tooltip із зображенням (карта вітру/снігу) --- */
.ec-calculator-container .ec-tooltip-popup--img {
    max-width: min(90vw, 720px);
    max-height: 90vh;
    min-width: 0;
    padding: 0;
    border-radius: 12px;
    overflow: hidden;
}

.ec-calculator-container .ec-tooltip-popup--img .ec-tooltip-img {
    display: block;
    width: 100%;
    height: auto;
    max-height: calc(90vh - 60px);
    object-fit: contain;
    border-radius: 12px 12px 0 0;
    user-select: none;
    -webkit-user-drag: none;
}

.ec-calculator-container .ec-tooltip-popup--img .ec-tooltip-caption {
    padding: 10px 16px;
    font-size: 12px;
    font-weight: 500;
    line-height: 1.4;
    color: var(--ec-text-sec);
    text-align: center;
    background: #f8fafc;
    border-top: 1px solid var(--ec-border);
}

.ec-calculator-container .ec-tooltip-popup--img .ec-tooltip-close {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 30px;
    height: 30px;
    border: none;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.5);
    color: #fff;
    font-size: 18px;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.15s;
    z-index: 1;
    padding: 0;
}

.ec-calculator-container .ec-tooltip-popup--img .ec-tooltip-close:hover {
    background: rgba(0, 0, 0, 0.75);
}

/* --- Tooltip tables (normative reference) --- */
.ec-calculator-container .ec-tooltip-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
    margin-top: 6px;
    margin-bottom: 8px;
}

.ec-calculator-container .ec-tooltip-table th,
.ec-calculator-container .ec-tooltip-table td {
    border: 1px solid var(--ec-border, #e2e8f0);
    padding: 4px 8px;
    text-align: left;
}

.ec-calculator-container .ec-tooltip-table th {
    background: var(--ec-bg, #f8fafc);
    font-weight: 600;
    font-size: 11px;
    text-transform: uppercase;
    color: var(--ec-text-sec, #64748b);
}

.ec-calculator-container .ec-tooltip-table td:nth-child(2),
.ec-calculator-container .ec-tooltip-table td:nth-child(3),
.ec-calculator-container .ec-tooltip-table th:nth-child(2),
.ec-calculator-container .ec-tooltip-table th:nth-child(3) {
    text-align: center;
    white-space: nowrap;
}

.ec-calculator-container .ec-fl-tooltip-tabs {
    max-height: 60vh;
    overflow-y: auto;
}

/* --- Overlay (фон при відкритому tooltip) --- */
.ec-tooltip-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.35);
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s, visibility 0.2s;
}

.ec-tooltip-overlay.is-visible {
    opacity: 1;
    visibility: visible;
}

@media (max-width: 680px) {
    .ec-calculator-container .ec-tooltip-popup {
        max-width: calc(100vw - 24px);
        min-width: 0;
        padding: 16px 18px;
    }

    .ec-calculator-container .ec-tooltip-popup--img {
        max-width: 96vw;
        max-height: 85vh;
    }
}

/* =================================================================
   Norm Badge (in panel title)
   ================================================================= */

.ec-badge-norm {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 700;
    background: #588da7;
    color: #fff;
    vertical-align: middle;
    margin-left: 6px;
}

/* =================================================================
   Cladding Weight Preview
   ================================================================= */

.ec-preview-weight {
    margin-top: 12px;
    padding: 10px 14px;
    background: #f0f9ff;
    border: 1px solid #bae6fd;
    border-radius: 6px;
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.ec-preview-label {
    color: var(--ec-text-sec);
    font-weight: 600;
}

.ec-preview-value {
    color: var(--ec-text);
    font-weight: 700;
}

/* =================================================================
   Loads Result Cards (wind pressure/suction, cladding weight)
   ================================================================= */

.ec-loads-result-cards {
    display: flex;
    gap: 10px;
    margin-top: 12px;
    flex-wrap: wrap;
}

.ec-result-card {
    flex: 1;
    min-width: 120px;
    background: #f8fafc;
    border: 1px solid var(--ec-border);
    border-radius: 8px;
    padding: 12px;
    text-align: center;
}

.ec-result-card--accent {
    background: #eff6ff;
    border-color: var(--ec-accent-light);
}

.ec-result-card--warn {
    background: #fffbeb;
    border-color: #f59e0b;
}

.ec-result-card-label {
    display: block;
    font-size: 11px;
    font-weight: 600;
    color: var(--ec-text-sec);
    margin-bottom: 4px;
}

.ec-result-card-value {
    display: block;
    font-size: 18px;
    font-weight: 700;
    color: var(--ec-text);
    line-height: 1.2;
}

.ec-result-card-value small {
    font-size: 12px;
    font-weight: 500;
    color: var(--ec-text-sec);
}

.ec-result-card-alt {
    display: block;
    font-size: 11px;
    color: var(--ec-text-sec);
    margin-top: 2px;
}

/* =================================================================
   Loads Summary (values for vertical calculator + copy buttons)
   ================================================================= */

.ec-loads-summary {
    margin-top: 16px;
    padding: 16px;
    background: #f0fdf4;
    border: 1px solid #86efac;
    border-radius: 8px;
}

.ec-loads-summary-title {
    font-size: 13px;
    font-weight: 700;
    color: #065f46;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
}

.ec-loads-summary-grid {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.ec-loads-summary-item {
    flex: 1;
    min-width: 200px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 12px;
    background: #fff;
    border: 1px solid #bbf7d0;
    border-radius: 6px;
}

.ec-loads-summary-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--ec-text-sec);
}

.ec-loads-summary-value {
    font-size: 20px;
    font-weight: 700;
    color: var(--ec-text);
}

.ec-loads-summary-alt {
    font-size: 11px;
    color: var(--ec-text-sec);
}

/* =================================================================
   Copy Button
   ================================================================= */

.ec-copy-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 6px 14px;
    border: 1px solid var(--ec-border);
    border-radius: 6px;
    background: #fff;
    color: var(--ec-text-sec);
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s;
    margin-top: 4px;
    align-self: flex-start;
}

.ec-copy-btn:hover {
    background: var(--ec-accent);
    color: #fff;
    border-color: var(--ec-accent);
}

/* =================================================================
   Facade Result (replaces SVG diagram after calculation)
   ================================================================= */

.ec-facade-result-title {
    font-size: 15px;
    font-weight: 700;
    text-align: center;
    text-transform: uppercase;
    margin: 10px 16px 0;
}

.ec-facade-result-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.ec-facade-result-col {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin: 30px 8px;
}

.ec-facade-result-heading {
    font-size: 14px;
    font-weight: 700;
    color: var(--ec-text);
    margin-bottom: 2px;
}

.ec-facade-result-layer {
    padding: 3px 0 3px 8px;
    border-left: 2px solid var(--ec-accent-light);
}

.ec-facade-result-layer__name {
    font-size: 13px;
    font-weight: 600;
    color: var(--ec-text);
    line-height: 1.3;
}

.ec-facade-result-layer__params {
    font-size: 12px;
    color: var(--ec-text-sec);
    line-height: 1.4;
}

.ec-facade-result-clad-summary {
    padding: 6px 8px;
    margin: 6px 0;
    background: #eff6ff;
    border-radius: 4px;
    font-size: 12px;
    color: var(--ec-text);
    line-height: 1.5;
}

.ec-facade-result-clad-summary strong {
    font-weight: 700;
}

.ec-facade-result-clad-summary__title {
    font-weight: 600;
    color: var(--ec-text);
    margin-bottom: 2px;
}

.ec-facade-result-clad-summary__row {
    font-size: 12px;
    color: var(--ec-text-sec);
    line-height: 1.5;
}

.ec-facade-result-row {
    font-size: 13px;
    color: var(--ec-text-sec);
    line-height: 1.5;
}

.ec-facade-result-max {
    font-size: 16px;
    font-weight: 700;
    color: var(--ec-text);
    margin-top: 4px;
}

.ec-facade-result-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--ec-border);
}

.ec-facade-result-buttons .ec-copy-btn {
    justify-content: center;
    align-self: center;
    margin: 0 auto;
}

/* =================================================================
   Main button — send mode (after calculation)
   ================================================================= */

.ec-btn-calc.ec-btn-send-mode {
    background: #f0f7ff;
    color: #005f8d;
    border: 2px dashed #005f8d;
}

.ec-btn-calc.ec-btn-send-mode:hover {
    background: #005f8d;
    color: #fff;
    border-style: solid;
}

.ec-btn-calc.is-sending {
    background: #e0ecff;
    color: #005f8d;
    cursor: wait;
    pointer-events: none;
}

.ec-btn-calc.is-ready {
    background: #005f8d;
    color: #fff;
    border: 2px solid #005f8d;
    animation: ec-pulse-glow 1.5s ease-in-out infinite;
}

.ec-btn-calc.is-ready:hover {
    background: #004a6e;
}

@keyframes ec-pulse-glow {

    0%,
    100% {
        box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.3);
    }

    50% {
        box-shadow: 0 0 0 6px rgba(37, 99, 235, 0);
    }
}

/* Spinner */
.ec-spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(37, 99, 235, 0.25);
    border-top-color: var(--ec-accent);
    border-radius: 50%;
    animation: ec-spin 0.6s linear infinite;
    vertical-align: middle;
}

@keyframes ec-spin {
    to {
        transform: rotate(360deg);
    }
}

/* =================================================================
   Transfer Notice (auto-populated values)
   ================================================================= */

.ec-transfer-notice {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 14px;
    margin-bottom: 12px;
    border-radius: 8px;
    background: #eff6ff;
    border: 1px solid #bfdbfe;
    color: #1e40af;
    font-size: 13px;
    font-weight: 500;
    line-height: 1.4;
}

.ec-transfer-notice-close {
    flex-shrink: 0;
    width: 22px;
    height: 22px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    color: #1e40af;
    font-size: 14px;
    cursor: pointer;
    border-radius: 4px;
    opacity: 0.6;
    transition: opacity 0.15s;
}

.ec-transfer-notice-close:hover {
    opacity: 1;
    background: rgba(30, 64, 175, 0.1);
}

/* =================================================================
   Loads mode: mobile adjustments
   ================================================================= */

@media (max-width: 680px) {
    .ec-facade-result-grid {
        grid-template-columns: 1fr;
    }

    .ec-loads-result-cards {
        flex-direction: column;
    }

    .ec-loads-summary-grid {
        flex-direction: column;
    }

    .ec-result-card-value {
        font-size: 16px;
    }

    .ec-loads-summary-value {
        font-size: 18px;
    }
}

/* =================================================================
   Floor Loads mode — layout & components
   ================================================================= */

.ec-mode-floor-loads .ec-layout {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
}

.ec-mode-floor-loads .ec-layout>.ec-panel {
    margin-bottom: 0;
}

.ec-mode-floor-loads .ec-panel-floor-params .ec-grid {
    grid-template-columns: 1fr 2fr;
}

.ec-mode-floor-loads .ec-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}

@media (max-width: 768px) {
    .ec-mode-floor-loads .ec-layout {
        grid-template-columns: 1fr;
    }
}

/* ─── Block 1.2: Extra load ─── */
.ec-panel-floor-loads .ec-fl-imposed-preview {
    display: flex;
    flex-direction: column;
    gap: 2px;
    align-items: flex-start;
}

.ec-fl-custom-load {
    margin-top: 8px;
}

.ec-fl-custom-load .ec-field {
    flex-direction: column;
    align-items: flex-start;
}

.ec-fl-custom-warning,
.ec-fl-custom-result-warning {
    background: #fff8e1;
    border: 1px solid #ffe082;
    border-radius: 6px;
    padding: 8px 12px;
    font-size: 13px;
    color: #8d6e00;
    margin-bottom: 10px;
}

.ec-fl-extra-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.ec-fl-extra-row .ec-input {
    flex: 1;
    max-width: 120px;
}

.ec-fl-extra-unit {
    font-size: 13px;
    color: var(--ec-text-sec, #64748b);
    white-space: nowrap;
}

.ec-fl-snow-section {
    margin-top: 16px;
    padding-top: 12px;
    border-top: 1px solid var(--ec-border, #e2e8f0);
}

.ec-fl-snow-title {
    font-weight: 600;
    font-size: 13px;
    color: var(--ec-text-sec, #64748b);
    margin-bottom: 8px;
}

/* Unit selectors side by side */
.ec-mode-floor-loads .ec-input-row {
    display: flex;
    gap: 8px;
}

.ec-mode-floor-loads .ec-select--half {
    flex: 1;
    min-width: 0;
}

/* Imposed preview */
.ec-fl-imposed-preview {
    margin-top: 12px;
    padding-top: 10px;
    border-top: 1px solid var(--ec-border);
}

/* =================================================================
   Floor Loads — Шари конструкції (layer rows)
   ================================================================= */

.ec-fl-layers-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 12px;
}

.ec-fl-layer-row {
    background: #f8fafc;
    border: 1px solid var(--ec-border);
    border-radius: 6px;
    padding: 10px 12px;
    transition: background 0.15s;
}

.ec-fl-layer-row:hover {
    background: #f1f5f9;
}

.ec-fl-layer-fields {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.ec-fl-layer-fields .ec-fl-layer-material {
    flex: 2;
    min-width: 160px;
    height: 36px;
    font-size: 13px;
}

.ec-fl-layer-thick-wrap {
    display: flex;
    align-items: center;
    gap: 0;
}

.ec-fl-layer-thick-wrap .ec-input {
    width: 70px;
    height: 36px;
    font-size: 13px;
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
    text-align: center;
}

.ec-fl-layer-unit {
    display: flex;
    align-items: center;
    height: 36px;
    padding: 0 8px;
    border: 1px solid var(--ec-border);
    border-left: none;
    border-radius: 0 6px 6px 0;
    font-size: 11px;
    font-weight: 600;
    background: #f1f5f9;
    color: var(--ec-text-sec);
    box-sizing: border-box;
}

.ec-fl-layer-custom-weight .ec-input {
    width: 80px;
    height: 36px;
    font-size: 13px;
}

.ec-fl-layer-weight-display {
    font-size: 13px;
    font-weight: 600;
    color: var(--ec-text-sec);
    min-width: 80px;
    text-align: right;
    flex-shrink: 0;
}

.ec-fl-remove-layer {
    background: none;
    border: 1px solid transparent;
    color: var(--ec-text-sec);
    cursor: pointer;
    font-size: 14px;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: all 0.15s;
    flex-shrink: 0;
    padding: 0;
}

.ec-fl-remove-layer:hover {
    background: #fef2f2;
    border-color: var(--ec-danger);
    color: var(--ec-danger);
}

/* Add layer button */
.ec-calculator-container .ec-btn-secondary {
    background: transparent;
    border: 1.5px dashed #cbd5e1;
    color: #005f8d;
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    width: 100%;
    text-align: center;
}

.ec-calculator-container .ec-btn-secondary:hover {
    border-color: #005f8d;
    background: #f0f7ff;
    color: #004a6e;
}

/* Layers total */
.ec-fl-layers-total {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid var(--ec-border);
}

/* =================================================================
   Floor Loads — Results table
   ================================================================= */

.ec-fl-results-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
    margin-bottom: 12px;
}

.ec-fl-results-table th {
    background: #f1f5f9;
    font-size: 12px;
    font-weight: 700;
    color: var(--ec-text-sec);
    text-align: left;
    padding: 8px 10px;
    border-bottom: 2px solid var(--ec-border);
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.ec-fl-results-table td {
    padding: 8px 10px;
    border-bottom: 1px solid var(--ec-border);
    color: var(--ec-text);
}

.ec-fl-results-table .ec-fl-total-row td {
    background: #f0fdf4;
    font-weight: 600;
    border-top: 2px solid var(--ec-success);
}

.ec-fl-point-load {
    margin-top: 12px;
    padding: 10px 14px;
    background: #eff6ff;
    border-radius: 6px;
    font-size: 14px;
    color: var(--ec-text);
}

.ec-fl-point-load strong {
    color: var(--ec-accent);
}

.ec-text-sec {
    color: var(--ec-text-sec);
    font-size: 12px;
}

.ec-fl-summary {
    margin-bottom: 12px;
}

.ec-fl-layers-summary {
    margin-top: 12px;
}

/* =================================================================
   Floor Loads — mobile
   ================================================================= */

@media (max-width: 680px) {
    .ec-fl-layer-fields {
        flex-direction: column;
        align-items: stretch;
    }

    .ec-fl-layer-fields .ec-fl-layer-material {
        min-width: 100%;
    }

    .ec-fl-layer-weight-display {
        text-align: left;
        min-width: auto;
    }

    .ec-fl-remove-layer {
        align-self: flex-end;
    }

    .ec-fl-results-table {
        font-size: 12px;
    }

    .ec-fl-results-table th,
    .ec-fl-results-table td {
        padding: 6px 8px;
    }
}

/* =================================================================
   Insulation Layer highlight (утеплювач у пирозі шарів)
   ================================================================= */

.ec-calculator-container .ec-layer-row--insulation {
    background: linear-gradient(135deg, #fef9ef 0%, #fff7e6 100%);
    border: 1px solid #fcd34d;
    border-radius: 6px;
    padding: 8px;
}

.ec-calculator-container .ec-layer-row--insulation:hover {
    background: linear-gradient(135deg, #fef3c7 0%, #fef9ef 100%);
}

.ec-calculator-container .ec-layer-row--insulation .ec-layer-badge {
    border-color: #d97706;
    color: #d97706;
}

/* Adhesive coverage warning */
.ec-layer-coverage-warning {
    grid-column: 1 / -1;
    font-size: 12px;
    font-weight: 500;
    padding: 2px 0 0 36px;
    line-height: 1.4;
}

/* =================================================================
   Layer System (пиріг конструкції) — стандартна таблиця шарів
   ================================================================= */

/* --- Table header --- */
.ec-layers-header {
    display: grid;
    grid-template-columns: 24px 28px 0.9fr 72px 70px 35px;
    gap: 6px;
    padding: 10px 10px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--ec-text-sec);
    letter-spacing: 0.5px;
    border-bottom: 2px solid var(--ec-border);
    align-items: center;
}

/* № spans both handle + badge columns */
.ec-layers-header span:first-child {
    grid-column: 1 / 3;
    text-align: center;
}

.ec-layers-header span:nth-child(3) {
    text-align: center;
}

.ec-layers-header span:nth-child(4) {
    text-align: left;
}

/* --- Layer row --- */
.ec-layer-row {
    display: grid;
    grid-template-columns: 24px 28px 0.9fr 72px 70px 35px;
    gap: 6px;
    align-items: center;
    padding: 10px 10px;
    border-bottom: 1px solid #f1f5f9;
    transition: background 0.15s, box-shadow 0.15s;
}

.ec-layer-row:hover {
    background: #f8fafc;
}

/* Drag handle */
.ec-layer-handle {
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: grab;
    color: #cbd5e1;
    font-size: 16px;
    user-select: none;
    transition: color 0.15s;
}

.ec-layer-handle:hover {
    color: var(--ec-text-sec);
}

.ec-layer-handle:active {
    cursor: grabbing;
}

/* Badge number */
.ec-layer-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: 2px solid var(--ec-accent);
    color: var(--ec-accent);
    font-size: 11px;
    font-weight: 700;
    flex-shrink: 0;
    margin: 0 auto;
}

/* Material name + select wrapper */
.ec-layer-material-wrap {
    min-width: 0;
    overflow: hidden;
}

/* Material name */
.ec-layer-material {
    font-size: 13px;
    font-weight: 500;
    color: var(--ec-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.3;
}

/* Thickness input */
.ec-layer-thickness {
    width: 100%;
    max-width: 72px;
    padding: 6px 8px;
    font-size: 13px;
    font-weight: 500;
    text-align: center;
    border: 1px solid var(--ec-border);
    border-radius: 6px;
    background: #fff;
    box-sizing: border-box;
}

.ec-layer-thickness:focus {
    border-color: var(--ec-accent);
    outline: none;
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.15);
}

/* Weight display */
.ec-layer-weight {
    font-size: 13px;
    font-weight: 500;
    color: var(--ec-text-sec);
    text-align: left;
    white-space: nowrap;
    padding-right: 2px;
}

/* Remove button */
.ec-layer-remove {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    border: none;
    background: transparent;
    color: #cbd5e1;
    font-size: 14px;
    cursor: pointer;
    border-radius: 50%;
    transition: color 0.15s, background 0.15s;
    padding: 0;
    margin: 0 auto;
}

.ec-layer-remove:hover {
    color: var(--ec-danger);
    background: rgba(220, 38, 38, 0.08);
}

/* --- Drag state --- */
.ec-layer-row.is-dragging {
    opacity: 0.4;
    background: #eff6ff;
}

.ec-layer-row.is-drag-over {
    box-shadow: 0 -2px 0 0 var(--ec-accent);
}

/* --- Add layer button --- */
.ec-layers-add-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 8px 16px;
    margin-top: 8px;
    font-size: 13px;
    font-weight: 600;
    color: var(--ec-accent);
    background: transparent;
    border: 1px dashed var(--ec-border);
    border-radius: 6px;
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s;
}

.ec-layers-add-btn:hover {
    background: #eff6ff;
    border-color: var(--ec-accent);
}

/* --- Summary --- */
.ec-layers-summary {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 10px 12px;
    margin-top: 8px;
    background: #eff6ff;
    border-radius: 6px;
    font-size: 13px;
    color: var(--ec-text);
}

.ec-layers-summary strong {
    font-weight: 700;
}

/* --- Custom weight input row --- */
.ec-layer-custom-weight {
    display: none;
    grid-column: 3 / -1;
    padding: 4px 0;
}

.ec-layer-custom-weight input {
    width: 80px;
    padding: 4px 6px;
    font-size: 13px;
    border: 1px solid var(--ec-border);
    border-radius: 4px;
}

/* --- Mobile responsive --- */
@media (max-width: 600px) {
    .ec-layers-header {
        grid-template-columns: 20px 24px 0.9fr 56px 56px 28px;
        gap: 4px;
        padding: 8px;
        font-size: 10px;
    }

    .ec-layer-row {
        grid-template-columns: 20px 24px 0.9fr 56px 56px 28px;
        gap: 4px;
        padding: 8px;
    }

    .ec-layer-badge {
        width: 20px;
        height: 20px;
        font-size: 10px;
    }

    .ec-layer-material {
        font-size: 12px;
    }

    .ec-layer-thickness {
        max-width: 56px;
        padding: 4px 6px;
        font-size: 12px;
    }

    .ec-layer-weight {
        font-size: 12px;
    }
}

/* ─── Fixing method row (inline label + select) ────────────────── */

.ec-calculator-container .ec-fixing-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.ec-calculator-container .ec-fixing-row .ec-label {
    margin: 0;
    white-space: nowrap;
    font-size: 14px;
    font-weight: 500;
}

.ec-calculator-container .ec-fixing-row .ec-select {
    flex: 1;
    min-width: 180px;
    max-width: 320px;
}

@media (max-width: 600px) {
    .ec-calculator-container .ec-fixing-row {
        flex-direction: column;
        align-items: stretch;
    }

    .ec-calculator-container .ec-fixing-row .ec-select {
        max-width: 100%;
    }
}

/* ─── Empty state шарів ────────────────── */

/* Full-width panel spanning both columns when layers = 0 */
.ec-calculator-container .ec-panel--layers-header,
.ec-calculator-container .ec-panel--layers-empty {
    grid-column: 1 / -1;
}

.ec-calculator-container .ec-layers-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 16px;
    border: 2px dashed var(--ec-border);
    border-radius: 10px;
    background: #fafbfc;
    position: relative;
    overflow: visible;
}

.ec-calculator-container .ec-layers-empty__icon {
    font-size: 36px;
    line-height: 1;
    margin-bottom: 8px;
    opacity: 0.7;
}

.ec-calculator-container .ec-layers-empty__text {
    font-size: 14px;
    color: var(--ec-text-sec);
    margin-bottom: 16px;
}

/* Base add-layer button (small, inline link-style used in active state) */
.ec-calculator-container .ec-layers-add-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 600;
    color: #4a8fa8;
    background: none;
    border: 1px dashed #4a8fa8;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.15s;
    margin-top: 8px;
}

.ec-calculator-container .ec-layers-add-btn:hover {
    background: rgba(74, 143, 168, 0.06);
    border-color: #2c6e8a;
    color: #2c6e8a;
}

/* Big add-layer button (gradient, full-width, used in empty state) */
.ec-calculator-container .ec-layers-add-btn--big {
    width: 100%;
    padding: 14px 24px;
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    background: linear-gradient(135deg, #4a8fa8, #2c6e8a);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: opacity .2s;
    text-align: center;
    justify-content: center;
}

.ec-calculator-container .ec-layers-add-btn--big:hover {
    opacity: 0.85;
    background: linear-gradient(135deg, #4a8fa8, #2c6e8a);
    color: #fff;
    border: none;
}

/* ─── Layer Material Picker Popup ────────────────── */

.ec-layer-picker {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    z-index: 9999;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
    border: 1px solid var(--ec-border);
    width: 300px;
    max-height: 420px;
    overflow-y: auto;
    display: none;
}

.ec-layer-picker.is-open {
    display: block;
}

.ec-layer-picker__title {
    font-size: 13px;
    font-weight: 600;
    color: var(--ec-text-sec);
    padding: 12px 16px 8px;
    border-bottom: 1px solid var(--ec-border);
}

.ec-layer-picker__item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    font-size: 14px;
    color: var(--ec-text);
    cursor: pointer;
    transition: background 0.12s;
    border: none;
    background: none;
    width: 100%;
    text-align: left;
}

.ec-layer-picker__item:hover {
    background: #f1f5f9;
}

.ec-layer-picker__item:last-child {
    border-radius: 0 0 10px 10px;
}

.ec-layer-picker__icon {
    font-size: 18px;
    width: 24px;
    text-align: center;
    flex-shrink: 0;
}

.ec-layer-picker__group {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--ec-text-sec);
    padding: 8px 16px 4px;
    border-top: 1px solid var(--ec-border);
}

.ec-layer-picker__group:first-child {
    border-top: none;
}

/* ─── Layer Config Popup (form) ────────────────── */

.ec-layer-config {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    z-index: 9999;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
    border: 1px solid var(--ec-border);
    width: 300px;
    padding: 20px;
    display: none;
}

.ec-layer-config.is-open {
    display: block;
}

.ec-layer-config__title {
    font-size: 16px;
    font-weight: 600;
    color: var(--ec-text);
    margin: 0 0 16px;
}

.ec-layer-config__row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
}

.ec-layer-config__label {
    font-size: 14px;
    color: var(--ec-text);
    white-space: nowrap;
}

.ec-layer-config__input {
    width: 100px;
    padding: 6px 10px;
    font-size: 14px;
    border: 1px solid var(--ec-border);
    border-radius: 6px;
    text-align: center;
}

.ec-layer-config__input:focus {
    border-color: var(--ec-accent);
    outline: none;
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.15);
}

.ec-layer-config__preview {
    font-size: 13px;
    color: var(--ec-text-sec);
    padding: 8px 0;
    border-top: 1px solid var(--ec-border);
    margin-top: 4px;
}

.ec-layer-config__actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-top: 16px;
    padding-top: 12px;
    border-top: 1px solid var(--ec-border);
}

.ec-layer-config__btn-add {
    padding: 10px 32px;
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    background: #4a5568;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.15s;
}

.ec-layer-config__btn-add:hover {
    background: #2d3748;
}

.ec-layer-config__btn-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid var(--ec-border);
    background: #fff;
    color: var(--ec-text-sec);
    font-size: 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s;
    padding: 0;
}

.ec-layer-config__btn-icon:hover {
    background: #f1f5f9;
}

.ec-layer-config__btn-icon--danger {
    color: var(--ec-danger);
    border-color: var(--ec-danger);
}

.ec-layer-config__btn-icon--danger:hover {
    background: #fef2f2;
}

/* ─── Двоколонковий layout шарів ────────────────── */
.ec-calculator-container .ec-layers-columns {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.ec-calculator-container .ec-layers-col-table {
    flex: 0 0 50%;
    min-width: 0;
}

.ec-calculator-container .ec-layers-col-3d {
    flex: 1 1 45%;
    min-width: 0;
}

/* ─── 3D SVG Візуалізація шарів ────────────────── */
.ec-calculator-container .ec-layers-3d-wrap {
    border: 1px solid var(--ec-border);
    border-radius: 8px;
    background: #fafbfc;
    overflow: hidden;
}

.ec-calculator-container .ec-layers-3d-svg {
    width: 100%;
    height: auto;
    display: block;
    min-height: 200px;
    max-height: 320px;
}

/* ─── Responsive: stacked на mobile ────────────────── */
@media (max-width: 700px) {
    .ec-calculator-container .ec-layers-columns {
        flex-direction: column;
    }

    .ec-calculator-container .ec-layers-col-table {
        flex: 1 1 auto;
        width: 100%;
    }

    .ec-calculator-container .ec-layers-col-3d {
        flex: 1 1 auto;
        width: 100%;
    }
}

/* =================================================================
   Disclaimer — попередження (жовтий блок, як на tato.cool)
   ================================================================= */

.ec-calculator-container .ec-disclaimer {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 18px;
    margin-bottom: 16px;
    background: #fef9c3;
    border: 1px solid #fde047;
    border-radius: 8px;
    font-size: 13px;
    line-height: 1.5;
    color: #854d0e;
}

.ec-disclaimer__icon {
    flex-shrink: 0;
    font-size: 22px;
    line-height: 1;
    margin-top: 1px;
}

.ec-disclaimer__text {
    flex: 1;
}

.ec-disclaimer__text a {
    color: #854d0e;
    text-decoration: underline;
    font-weight: 600;
    font-size: 13px;
}

.ec-disclaimer__text a:hover {
    color: #713f12;
}

/* =================================================================
   Header — заголовок + підзаголовок + кнопка Довідки «?»
   ================================================================= */

.ec-calculator-container .ec-header {
    position: relative;
    text-align: center;
    margin-bottom: 20px;
    padding: 8px 48px 8px 0;
}

.ec-header__title {
    font-size: 22px;
    font-weight: 400;
    color: var(--ec-text);
    margin: 0 0 4px;
    line-height: 1.3;
}

.ec-header__subtitle {
    font-size: 13px;
    color: var(--ec-text-sec);
    margin: 0;
}

.ec-calculator-container .ec-help-btn {
    position: absolute;
    top: 50%;
    right: 0;
    transform: translateY(-50%);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid var(--ec-border);
    background: #f1f5f9;
    color: var(--ec-text-sec);
    font-size: 18px;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    padding: 0;
    line-height: 1;
}

.ec-calculator-container .ec-help-btn:hover {
    background: var(--ec-accent);
    color: #fff;
    border-color: var(--ec-accent);
}

/* =================================================================
   Help Modal — Довідка (3 вкладки)
   ================================================================= */

.ec-help-overlay {
    position: fixed;
    inset: 0;
    z-index: 99999;
    background: rgba(0, 0, 0, 0.45);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s, visibility 0.2s;
}

.ec-help-overlay.is-open {
    opacity: 1;
    visibility: visible;
}

.ec-help-modal {
    background: #fff;
    border-radius: 12px;
    width: 100%;
    max-width: 700px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
    transform: translateY(20px);
    transition: transform 0.25s ease;
}

.ec-help-overlay.is-open .ec-help-modal {
    transform: translateY(0);
}

.ec-help-modal__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px 12px;
    flex-shrink: 0;
}

.ec-help-modal__title {
    font-size: 18px;
    font-weight: 600;
    color: var(--ec-text);
    margin: 0;
}

.ec-help-modal__close {
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    font-size: 22px;
    color: var(--ec-text-sec);
    cursor: pointer;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.15s, color 0.15s;
    padding: 0;
}

.ec-help-modal__close:hover {
    background: #f1f5f9;
    color: var(--ec-text);
}

/* Tabs */
.ec-help-tabs {
    display: flex;
    gap: 0;
    border-bottom: 1px solid var(--ec-border);
    padding: 0 24px;
    flex-shrink: 0;
}

.ec-help-tab {
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    color: var(--ec-text-sec);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    transition: color 0.15s, border-color 0.15s;
}

.ec-help-tab:hover {
    color: var(--ec-text);
}

.ec-help-tab.is-active {
    color: var(--ec-accent);
    border-bottom-color: var(--ec-accent);
    font-weight: 600;
}

/* Tab content */
.ec-help-content {
    overflow-y: auto;
    padding: 20px 24px 24px;
    flex: 1;
}

.ec-help-pane {
    display: none;
}

.ec-help-pane.is-active {
    display: block;
}

.ec-help-pane h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--ec-text);
    margin: 0 0 8px;
}

.ec-help-pane h4:not(:first-child) {
    margin-top: 20px;
}

.ec-help-pane ol,
.ec-help-pane ul {
    margin: 0 0 12px;
    padding-left: 24px;
    font-size: 14px;
    line-height: 1.7;
    color: var(--ec-text);
}

.ec-help-pane p {
    font-size: 14px;
    line-height: 1.6;
    color: var(--ec-text);
    margin: 0 0 12px;
}

.ec-help-pane .ec-help-note {
    padding: 12px 16px;
    background: #fef9c3;
    border-radius: 6px;
    border: 1px solid #fde68a;
    font-size: 13px;
    line-height: 1.5;
    color: #854d0e;
    margin: 12px 0;
}

.ec-help-pane code {
    background: #f1f5f9;
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 13px;
    color: var(--ec-text);
}

.ec-help-pane a {
    color: var(--ec-accent);
    text-decoration: none;
}

.ec-help-pane a:hover {
    text-decoration: underline;
}

.ec-help-pane table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
    margin: 8px 0 16px;
}

.ec-help-pane table th {
    background: #f1f5f9;
    padding: 8px 10px;
    text-align: left;
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    color: var(--ec-text-sec);
    border-bottom: 2px solid var(--ec-border);
}

.ec-help-pane table td {
    padding: 6px 10px;
    border-bottom: 1px solid var(--ec-border);
}

/* Help modal — mobile */
@media (max-width: 600px) {
    .ec-help-modal {
        max-height: 90vh;
        border-radius: 8px;
    }

    .ec-help-modal__header {
        padding: 16px 16px 8px;
    }

    .ec-help-tabs {
        padding: 0 16px;
    }

    .ec-help-tab {
        padding: 8px 12px;
        font-size: 13px;
    }

    .ec-help-content {
        padding: 16px;
    }
}

/* =================================================================
   ETICS Vertical Calculator — specific styles
   ================================================================= */

/* Picker/config is-visible (JS uses this class) */
.ec-layer-picker.is-visible,
.ec-layer-config.is-visible {
    display: block;
}

/* Badge normative label */
.ec-calculator-container .ec-badge-norm {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: #4a8fa8;
    background: #e8f4f8;
    padding: 2px 8px;
    border-radius: 4px;
    margin-left: 6px;
    vertical-align: middle;
}

/* Static value (hidden input display) */
.ec-calculator-container .ec-static-value {
    display: block;
    font-size: 14px;
    color: var(--ec-text);
    padding: 10px;
    font-weight: 500;
}


/* ─── Vertical mode 2×2 layout ───────────────── */
.ec-calculator-container.ec-mode-vertical .ec-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

/* When cladding area has layers, span full width on bottom */
.ec-calculator-container.ec-mode-vertical .ec-cell-loads {
    grid-column: 1 / -1;
}

/* ─── Vertical mode: Two-column cladding layout ─── */
.ec-layers-columns {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.ec-layers-col-table {
    flex: 0 0 55%;
    min-width: 280px;
}

.ec-layers-col-3d {
    flex: 1 1 45%;
    min-width: 200px;
}

/* ─── Dowel fields toggle ─── */
.ec-dowel-fields {
    overflow: hidden;
    transition: max-height 0.3s ease, opacity 0.3s ease;
    padding-top: 4px;
}

/* ─── Price table (dynamic) ─── */
.ec-calculator-container .ec-price-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
    margin: 0;
    cursor: default;
    user-select: none;
    -webkit-user-select: none;
}

.ec-calculator-container .ec-price-table th {
    background: #f1f5f9;
    padding: 8px 10px;
    text-align: left;
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    color: var(--ec-text-sec);
    border-bottom: 2px solid var(--ec-border);
    cursor: default;
}

.ec-calculator-container .ec-price-table td {
    padding: 6px 10px;
    border-bottom: 1px solid var(--ec-border);
    vertical-align: middle;
    cursor: default;
}

.ec-calculator-container .ec-price-table input[type="number"] {
    border: 1px solid var(--ec-border);
    border-radius: 4px;
    padding: 5px 8px;
    font-size: 13px;
    background: #fff;
    transition: border-color 0.15s;
    caret-color: transparent;
    cursor: default;
}

.ec-calculator-container .ec-price-table input[type="number"]:focus {
    outline: none;
    border-color: var(--ec-accent);
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.12);
}

.ec-calculator-container .ec-link-btn {
    background: none;
    border: none;
    color: var(--ec-text-sec, #64748b);
    font-size: 12px;
    cursor: pointer;
    padding: 2px 6px;
    border-radius: 4px;
    transition: color 0.15s, background 0.15s;
}

.ec-calculator-container .ec-link-btn:hover {
    color: var(--ec-danger, #dc2626);
    background: rgba(220, 38, 38, 0.06);
}

.ec-calculator-container .ec-price-tbl-input {
    width: 72px;
    text-align: right;
    padding: 4px 6px !important;
    font-size: 12px !important;
}

.ec-calculator-container .ec-price-consumption-wrap {
    display: flex;
    align-items: center;
    gap: 4px;
}

.ec-calculator-container .ec-price-tbl-hint {
    display: inline;
    font-size: 10px;
    color: var(--ec-text-sec, #64748b);
    line-height: 1.2;
    white-space: nowrap;
    flex-shrink: 0;
}

/* Estimate table: price warning rows */
.ec-etics-estimate-table .ec-est-over td:last-child {
    color: var(--ec-danger, #dc2626);
    font-weight: 700;
}

@media (max-width: 768px) {
    .ec-calculator-container.ec-mode-vertical .ec-layout {
        grid-template-columns: 1fr;
    }

    .ec-calculator-container.ec-mode-vertical .ec-layers-header {
        grid-template-columns: 20px 24px 0.9fr 56px 56px 28px;
        gap: 4px;
        padding: 8px;
        font-size: 10px;
    }

    .ec-calculator-container.ec-mode-vertical .ec-layer-row {
        grid-template-columns: 20px 24px 0.9fr 56px 56px 28px;
        gap: 4px;
        padding: 8px;
    }

    .ec-layers-columns {
        flex-direction: column;
    }

    .ec-layers-col-table,
    .ec-layers-col-3d {
        flex: 1 1 100%;
        min-width: 0;
    }

}

/* ─── ETICS Results: Disclaimer blocks ───────────────── */

.ec-calculator-container .ec-etics-disclaimer {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 12px 16px;
    margin: 12px 0;
    background: #eff6ff;
    border: 1px solid #bfdbfe;
    border-radius: 8px;
    font-size: 13px;
    line-height: 1.5;
    color: #1e40af;
}

.ec-calculator-container .ec-etics-disclaimer__icon {
    flex-shrink: 0;
    font-size: 18px;
    line-height: 1;
}

.ec-calculator-container .ec-etics-disclaimer--estimate {
    background: #fef9c3;
    border-color: #fde047;
    color: #854d0e;
}

/* ─── ETICS Results: Sections ───────────────── */

.ec-calculator-container .ec-etics-section {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--ec-border);
}

.ec-calculator-container .ec-etics-section:first-of-type {
    margin-top: 12px;
}

/* Highlight total row */
.ec-calculator-container .ec-info-row--total {
    padding-top: 8px;
    margin-top: 4px;
    border-top: 1px solid var(--ec-border);
    font-weight: 600;
}

.ec-calculator-container .ec-info-row--total strong {
    color: var(--ec-accent);
    font-size: 15px;
}

/* ─── Recommendations: 2-column layout ───────────────── */

.ec-calculator-container .ec-etics-recs-section {
    margin-top: 16px;
    padding: 16px;
    border-top: 1px solid var(--ec-border);
}

.ec-calculator-container .ec-recs-grid {
    display: grid;
    grid-template-columns: minmax(200px, 280px) 1fr;
    gap: 12px 24px;
    align-items: start;
}

.ec-calculator-container .ec-recs-left {
    min-width: 0;
}

.ec-calculator-container .ec-recs-right {
    min-width: 0;
}

.ec-calculator-container .ec-recommendations {
    margin: 0;
    padding-left: 20px;
    font-size: 13px;
    line-height: 1.6;
    color: var(--ec-text);
    list-style-type: disc;
}

.ec-calculator-container .ec-recommendations li {
    margin-bottom: 2px;
}

.ec-calculator-container .ec-recommendations li::marker {
    color: var(--ec-accent);
}

@media (max-width: 768px) {
    .ec-calculator-container .ec-recs-grid {
        grid-template-columns: 1fr;
        gap: 8px;
    }
}

/* ─── Estimate Table ───────────────── */

.ec-calculator-container .ec-estimate-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
    margin: 12px 0 16px;
}

.ec-calculator-container .ec-estimate-table th {
    background: #f1f5f9;
    padding: 8px 10px;
    text-align: left;
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    color: var(--ec-text-sec);
    border-bottom: 2px solid var(--ec-border);
}

.ec-calculator-container .ec-estimate-table td {
    padding: 6px 10px;
    border-bottom: 1px solid var(--ec-border);
}

.ec-calculator-container .ec-estimate-table tfoot td {
    font-weight: 600;
    padding: 10px 10px;
    background: #f8fafc;
}

.ec-calculator-container .ec-estimate-table tfoot tr:first-child td {
    border-top: 2px solid var(--ec-accent);
    font-size: 14px;
}

.ec-calculator-container .ec-estimate-section {
    background: #fafbfc;
    border-radius: 8px;
    padding: 16px !important;
}

/* ─── Estimate table responsive ───────────────── */
@media (max-width: 600px) {
    .ec-calculator-container .ec-estimate-table {
        font-size: 12px;
    }

    .ec-calculator-container .ec-estimate-table th,
    .ec-calculator-container .ec-estimate-table td {
        padding: 4px 6px;
    }
}

/* ─── PRO: Comparison & Detail styles ───────────────── */

.ec-calculator-container .ec-pro-section {
    margin-top: 24px;
    border-top: 2px solid var(--ec-accent, #2563eb);
    padding-top: 20px;
    background: linear-gradient(180deg, #f0f5ff 0%, transparent 60px);
    border-radius: 12px;
    padding: 20px 16px;
}

.ec-calculator-container .ec-pro-table th {
    text-align: center;
}

.ec-calculator-container .ec-pro-table td:nth-child(n+2) {
    text-align: center;
}

.ec-calculator-container .ec-pro-table .ec-est-over {
    background: #fef2f2;
}

.ec-calculator-container .ec-pro-table .ec-est-over td {
    color: var(--ec-danger, #dc2626);
    font-weight: 600;
}

.ec-calculator-container .ec-pro-adjustments {
    background: #fffbeb;
    border: 1px solid #fbbf24;
    border-radius: 8px;
    padding: 16px !important;
    margin-top: 12px;
}

/* ─── Admin: Materials panel ─────────────────────────── */

.ec-calculator-container .ec-admin-materials {
    margin: 16px 0;
}

.ec-calculator-container .ec-admin-materials-btn {
    display: block;
    width: 100%;
    padding: 12px 20px;
    background: #fff;
    border: 2px solid #dc2626;
    border-radius: 8px;
    color: #dc2626;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    text-align: center;
    transition: all 0.2s ease;
}

.ec-calculator-container .ec-admin-materials-btn:hover {
    background: #fef2f2;
}

.ec-calculator-container .ec-admin-materials-btn--open {
    border-radius: 8px 8px 0 0;
    border-bottom: 1px solid #e5e7eb;
}

.ec-calculator-container .ec-admin-materials-panel {
    border: 1px solid #e5e7eb;
    border-top: none;
    border-radius: 0 0 8px 8px;
    padding: 16px;
    background: #fafafa;
    overflow-x: auto;
}

.ec-calculator-container .ec-admin-mat-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
    cursor: default;
    user-select: none;
    -webkit-user-select: none;
}

.ec-calculator-container .ec-admin-mat-table th,
.ec-calculator-container .ec-admin-mat-table td {
    padding: 6px 8px;
    border-bottom: 1px solid #e5e7eb;
    text-align: left;
    vertical-align: middle;
    cursor: default;
}

.ec-calculator-container .ec-admin-mat-table thead th {
    background: #f3f4f6;
    font-weight: 600;
    font-size: 12px;
    color: #374151;
    position: sticky;
    top: 0;
    z-index: 1;
}

.ec-calculator-container .ec-admin-mat-group td {
    background: #e0e7ff;
    font-weight: 700;
    font-size: 13px;
    color: #3730a3;
    padding: 8px;
    border-bottom: 2px solid #c7d2fe;
}

.ec-calculator-container .ec-admin-mat-input {
    width: 100%;
    padding: 4px 6px;
    border: 1px solid #d1d5db;
    border-radius: 4px;
    font-size: 12px;
    box-sizing: border-box;
    caret-color: transparent;
    cursor: default;
}

.ec-calculator-container .ec-admin-mat-input:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.15);
}

.ec-calculator-container .ec-admin-mat-name-fixed {
    font-weight: 500;
    font-size: 12px;
    white-space: nowrap;
}

.ec-calculator-container .ec-admin-mat-del {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    border: none;
    background: #fef2f2;
    color: #dc2626;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    margin-left: 4px;
    vertical-align: middle;
}

.ec-calculator-container .ec-admin-mat-del:hover {
    background: #dc2626;
    color: #fff;
}

.ec-calculator-container .ec-admin-mat-td-del {
    width: 36px;
    text-align: center;
    vertical-align: middle;
}

.ec-calculator-container .ec-admin-mat-actions {
    margin-top: 12px;
    text-align: center;
}

/* Estimate hint text */
.ec-calculator-container .ec-est-hint {
    font-size: 11px;
    font-style: italic;
    color: var(--ec-text-sec, #64748b);
    margin-top: 2px;
    line-height: 1.3;
}

.ec-calculator-container .ec-admin-mat-add {
    padding: 8px 24px;
    background: #f0fdf4;
    border: 1px dashed #16a34a;
    border-radius: 6px;
    color: #16a34a;
    font-weight: 600;
    cursor: pointer;
    font-size: 13px;
}

.ec-calculator-container .ec-admin-mat-add:hover {
    background: #dcfce7;
}

.ec-calculator-container .ec-admin-mat-save {
    position: fixed;
    bottom: 20px;
    left: 20px;
    z-index: 9999;
    padding: 12px 28px;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

@media (max-width: 768px) {
    .ec-calculator-container .ec-admin-mat-table {
        font-size: 11px;
    }

    .ec-calculator-container .ec-admin-mat-table th,
    .ec-calculator-container .ec-admin-mat-table td {
        padding: 4px 4px;
    }

    .ec-calculator-container .ec-admin-mat-input {
        font-size: 11px;
        padding: 3px 4px;
    }
}

/* =================================================================
   PDF Save Button & Spinner
   ================================================================= */

.ec-calculator-container .ec-btn--pdf {
    background: linear-gradient(135deg, #1e3a5f, #2563eb);
    color: #ffffff;
    border: none;
    padding: 12px 24px;
    border-radius: 10px;
    font-weight: 700;
    font-size: 15px;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-width: 200px;
}

.ec-calculator-container .ec-btn--pdf:hover {
    background: linear-gradient(135deg, #162e4d, #1d4ed8);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.ec-calculator-container .ec-btn--pdf:disabled {
    background: #94a3b8;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.ec-spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: ec-spin 0.7s linear infinite;
}

@keyframes ec-spin {
    to {
        transform: rotate(360deg);
    }
}

/* =================================================================
   Preset Buttons (быстрое заполнение шарів)
   ================================================================= */

.ec-panel-title--with-presets {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px 12px;
}

.ec-panel-title--with-presets>span {
    font-size: 15px;
    font-weight: 700;
    color: var(--ec-text);
}

.ec-preset-buttons {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.ec-calculator-container .ec-preset-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 5px 14px;
    font-size: 12px;
    font-weight: 600;
    line-height: 1.4;
    color: var(--ec-accent, #2563eb);
    background: transparent;
    border: 1.5px solid var(--ec-accent, #2563eb);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.ec-calculator-container .ec-preset-btn:hover {
    background: var(--ec-accent, #2563eb);
    color: #fff;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
    transform: translateY(-1px);
}

.ec-calculator-container .ec-preset-btn:active {
    transform: translateY(0);
    box-shadow: 0 1px 4px rgba(37, 99, 235, 0.2);
}

@media (max-width: 480px) {
    .ec-panel-title--with-presets {
        flex-direction: column;
        align-items: flex-start;
    }

    .ec-preset-buttons {
        width: 100%;
    }

    .ec-calculator-container .ec-preset-btn {
        flex: 1;
        justify-content: center;
        font-size: 11px;
        padding: 5px 10px;
    }
}