/* ==========================================================================
   Paint Estimator Upgraded Stylesheet - Scoped prefix namespaces (.pt-)
   ========================================================================== */

:root {
    --pt-primary: #f97316;
    --pt-primary-hover: #ea580c;
    --pt-bg-light: #f8fafc;
    --pt-border: #e2e8f0;
    --pt-text-main: #0f172a;
    --pt-text-muted: #64748b;
    --pt-card-bg: #ffffff;
    --pt-radius: 8px;
    --pt-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --pt-success: #16a34a;
    --pt-danger: #dc2626;
    --pt-warning: #ea580c;
}

/* Dark mode theme overrides */
[data-theme="dark"] {
    --pt-bg-light: #0f172a;
    --pt-border: #334155;
    --pt-text-main: #f8fafc;
    --pt-text-muted: #94a3b8;
    --pt-card-bg: #1e293b;
}

/* Container */
.pt-calc-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 16px 40px;
    font-family: 'Inter', -apple-system, sans-serif;
    color: var(--pt-text-main);
    box-sizing: border-box;
}

.pt-calc-wrapper * {
    box-sizing: border-box;
}

@media (max-width: 576px) {
    .pt-calc-wrapper {
        padding: 0 10px 32px;
    }
}

/* Tabs Scroll Layout */
.pt-tabs-scroll {
    overflow-x: auto;
    white-space: nowrap;
    padding-bottom: 8px;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--pt-border);
    scrollbar-width: thin;
    -webkit-overflow-scrolling: touch;
}

.pt-tabs-scroll::-webkit-scrollbar {
    height: 4px;
}

.pt-tabs-scroll::-webkit-scrollbar-thumb {
    background: var(--pt-border);
    border-radius: 2px;
}

.pt-tab-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: none;
    border: none;
    padding: 10px 14px;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--pt-text-muted);
    cursor: pointer;
    border-radius: var(--pt-radius) var(--pt-radius) 0 0;
    border-bottom: 3px solid transparent;
    transition: all 0.15s ease;
    margin-right: 2px;
}

@media (max-width: 576px) {
    .pt-tab-btn {
        padding: 8px 10px;
        font-size: 0.75rem;
        gap: 4px;
    }
    .pt-tab-btn i {
        display: none;
    }
}

.pt-tab-btn:hover {
    color: var(--pt-primary);
    background: var(--pt-bg-light);
}

.pt-tab-btn.active {
    color: var(--pt-primary);
    border-bottom-color: var(--pt-primary);
    background: var(--pt-bg-light);
}

/* Two-column Layout Grid */
.pt-calc-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    gap: 24px;
    align-items: start;
}

@media (max-width: 992px) {
    .pt-calc-grid {
        grid-template-columns: 1fr;
    }
}

/* Panel Card Container */
.pt-card {
    background: var(--pt-card-bg);
    border: 1px solid var(--pt-border);
    border-radius: var(--pt-radius);
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: var(--pt-shadow-sm);
}

@media (max-width: 576px) {
    .pt-card {
        padding: 16px 14px;
    }
}

.pt-card-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.05rem;
    font-weight: 700;
    margin: 0 0 18px 0;
    color: var(--pt-primary);
    border-bottom: 1px solid var(--pt-border);
    padding-bottom: 10px;
}

.pt-card-title i {
    width: 18px;
    height: 18px;
    stroke-width: 2px;
}

/* Form Row Grid */
.pt-form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}

@media (max-width: 576px) {
    .pt-form-row {
        grid-template-columns: 1fr;
        gap: 12px;
    }
}

.pt-form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.pt-label {
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--pt-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.pt-input-wrap {
    position: relative;
    display: flex;
    align-items: center;
}

.pt-input {
    width: 100%;
    padding: 10px 36px 10px 12px;
    background: var(--pt-bg-light);
    border: 1px solid var(--pt-border);
    color: var(--pt-text-main);
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: 6px;
    outline: none;
    transition: all 0.15s ease;
}

.pt-input:focus {
    border-color: var(--pt-primary);
    box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.15);
}

.pt-input-wrap select.pt-input {
    padding-right: 28px;
    appearance: none;
    -webkit-appearance: none;
}

.pt-input-wrap select.pt-input + .pt-select-arrow {
    position: absolute;
    right: 12px;
    width: 14px;
    height: 14px;
    pointer-events: none;
    stroke: var(--pt-text-muted);
}

.pt-unit-addon {
    position: absolute;
    right: 12px;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--pt-text-muted);
    pointer-events: none;
}

.pt-help-text {
    font-size: 0.7rem;
    color: var(--pt-text-muted);
    margin-top: -2px;
    line-height: 1.3;
}

/* Action Buttons */
.pt-action-row {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

@media (max-width: 576px) {
    .pt-action-row {
        flex-direction: column;
    }
    .pt-action-row .pt-btn-primary,
    .pt-action-row .pt-btn-secondary {
        flex: unset;
        width: 100%;
    }
}

.pt-btn-primary {
    flex: 1.5;
    background: var(--pt-primary);
    border: 1px solid var(--pt-primary);
    color: #ffffff;
    padding: 12px 20px;
    font-size: 0.95rem;
    font-weight: 700;
    border-radius: 6px;
    cursor: pointer;
    transition: background 0.15s;
    text-align: center;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.pt-btn-primary:hover {
    background: var(--pt-primary-hover);
}

.pt-btn-secondary {
    flex: 1;
    background: none;
    border: 1px solid var(--pt-border);
    color: var(--pt-text-main);
    padding: 12px 20px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 6px;
    cursor: pointer;
    transition: background 0.15s;
    text-align: center;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.pt-btn-secondary:hover {
    background: var(--pt-bg-light);
}

/* Indicator Dashboard Cards */
.pt-results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px;
    border-radius: var(--pt-radius);
    margin-bottom: 20px;
    background: rgba(249, 115, 22, 0.08);
    border: 1px solid var(--pt-primary);
    color: var(--pt-primary);
}

.pt-results-badge {
    font-size: 1.3rem;
    font-weight: 800;
}

.pt-indicator-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 20px;
}

@media (max-width: 576px) {
    .pt-indicator-grid {
        grid-template-columns: 1fr 1fr;
        gap: 8px;
    }
}

.pt-indicator-card {
    background: var(--pt-bg-light);
    border: 1px solid var(--pt-border);
    padding: 12px 10px;
    border-radius: 6px;
    text-align: center;
}

.pt-indicator-val {
    font-size: 1.05rem;
    font-weight: 800;
    color: var(--pt-primary);
    margin-top: 4px;
}

.pt-indicator-lbl {
    font-size: 0.68rem;
    font-weight: 700;
    color: var(--pt-text-muted);
    text-transform: uppercase;
}

/* Info Icon & Tooltip */
.pt-info-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--pt-border);
    color: var(--pt-text-muted);
    font-size: 0.65rem;
    font-weight: 700;
    cursor: help;
    margin-left: 4px;
    vertical-align: middle;
    transition: all 0.15s;
}

.pt-info-icon:hover {
    background: var(--pt-primary);
    color: #ffffff;
}

/* Table styling for lists */
.pt-table-responsive {
    overflow-x: auto;
    margin-bottom: 20px;
    border-radius: 6px;
    border: 1px solid var(--pt-border);
    -webkit-overflow-scrolling: touch;
}

.pt-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
    text-align: left;
    min-width: 560px;
}

.pt-table th {
    background: var(--pt-bg-light);
    padding: 10px 12px;
    font-weight: 700;
    color: var(--pt-text-muted);
    text-transform: uppercase;
    font-size: 0.72rem;
    border-bottom: 1px solid var(--pt-border);
    white-space: nowrap;
}

.pt-table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--pt-border);
    color: var(--pt-text-main);
    vertical-align: middle;
}

.pt-table tr:last-child td {
    border-bottom: none;
}

.pt-table-input {
    width: 80px;
    padding: 6px 8px;
    border: 1px solid var(--pt-border);
    border-radius: 4px;
    background: var(--pt-card-bg);
    color: var(--pt-text-main);
    font-size: 0.82rem;
    font-weight: 600;
    text-align: right;
    outline: none;
}

.pt-table-input:focus {
    border-color: var(--pt-primary);
}

.pt-table-input-select {
    width: 110px;
    padding: 6px;
    border: 1px solid var(--pt-border);
    border-radius: 4px;
    background: var(--pt-card-bg);
    color: var(--pt-text-main);
    font-size: 0.8rem;
}

/* Mobile Stacked Card Table */
@media (max-width: 600px) {
    .pt-table-responsive {
        border: none;
        overflow-x: unset;
    }

    .pt-table,
    .pt-table thead,
    .pt-table tbody,
    .pt-table th,
    .pt-table td,
    .pt-table tr {
        display: block;
        width: 100%;
        min-width: unset;
    }

    .pt-table thead tr {
        position: absolute;
        top: -9999px;
        left: -9999px;
    }

    .pt-table tbody tr {
        border: 1px solid var(--pt-border);
        border-radius: 8px;
        margin-bottom: 12px;
        padding: 4px 0;
        background: var(--pt-card-bg);
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    }

    .pt-table td {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 8px 14px;
        border-bottom: 1px dashed var(--pt-border);
        font-size: 0.85rem;
        gap: 8px;
    }

    .pt-table td:last-child {
        border-bottom: none;
    }

    .pt-table td::before {
        content: attr(data-label);
        font-size: 0.7rem;
        font-weight: 700;
        text-transform: uppercase;
        color: var(--pt-text-muted);
        letter-spacing: 0.4px;
        flex-shrink: 0;
        min-width: 80px;
    }

    .pt-table td.pt-td-total {
        font-weight: 800;
        font-size: 0.95rem;
        color: var(--pt-primary);
    }

    .pt-table-input {
        width: 100px;
    }
    
    .pt-table-input-select {
        width: 140px;
    }

    .pt-table tbody tr.pt-tr-grand {
        border: 2px solid var(--pt-primary);
        background: rgba(249, 115, 22, 0.05);
    }
}

/* Preset Buttons Container */
.pt-preset-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
    align-items: center;
}

.pt-preset-btn {
    background: var(--pt-bg-light);
    border: 1px solid var(--pt-border);
    padding: 6px 12px;
    font-size: 0.78rem;
    font-weight: 600;
    border-radius: 20px;
    cursor: pointer;
    color: var(--pt-text-muted);
    transition: all 0.15s;
}

.pt-preset-btn:hover {
    border-color: var(--pt-primary);
    color: var(--pt-primary);
}

.pt-preset-btn.active {
    background: var(--pt-primary);
    color: #ffffff;
    border-color: var(--pt-primary);
}

/* Toggle Option Selectors */
.pt-toggle-wrapper {
    display: flex;
    background: var(--pt-bg-light);
    border: 1px solid var(--pt-border);
    border-radius: 6px;
    padding: 2px;
    margin-bottom: 12px;
}

.pt-toggle-opt {
    flex: 1;
    padding: 8px 12px;
    font-size: 0.85rem;
    font-weight: 600;
    text-align: center;
    color: var(--pt-text-muted);
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.15s;
}

.pt-toggle-opt:hover {
    color: var(--pt-primary);
}

.pt-toggle-opt.active {
    background: var(--pt-primary);
    color: #ffffff;
}

/* Export Panel buttons list */
.pt-export-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 16px;
}

.pt-export-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--pt-bg-light);
    border: 1px solid var(--pt-border);
    padding: 8px 14px;
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: 6px;
    cursor: pointer;
    color: var(--pt-text-main);
    transition: all 0.15s;
}

.pt-export-btn:hover {
    border-color: var(--pt-primary);
    color: var(--pt-primary);
    background: rgba(249, 115, 22, 0.05);
}

.pt-export-btn i {
    width: 14px;
    height: 14px;
    stroke-width: 2px;
}

/* Step Calculation Accordeon explanation */
.pt-summary-box {
    background: var(--pt-bg-light);
    border: 1px solid var(--pt-border);
    border-radius: 6px;
    padding: 16px;
    font-size: 0.85rem;
    line-height: 1.6;
}

.pt-summary-title {
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--pt-primary);
    font-size: 0.9rem;
    text-transform: uppercase;
}

.pt-summary-step {
    margin-bottom: 12px;
    border-bottom: 1px dashed var(--pt-border);
    padding-bottom: 8px;
}

.pt-summary-step:last-child {
    border-bottom: none;
    padding-bottom: 0;
    margin-bottom: 0;
}

.pt-formula-display {
    font-family: monospace;
    background: var(--pt-card-bg);
    padding: 4px 8px;
    border-radius: 4px;
    border: 1px solid var(--pt-border);
    display: inline-block;
    margin-top: 4px;
    color: var(--pt-primary);
    word-break: break-all;
}

/* Alert Notification box */
.pt-alert {
    padding: 12px 16px;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    line-height: 1.4;
}

.pt-alert-danger {
    background: rgba(220, 38, 38, 0.08);
    border: 1px solid var(--pt-danger);
    color: var(--pt-danger);
}

.pt-btn-del {
    background: none;
    border: 1px solid var(--pt-border);
    color: var(--pt-danger);
    width: 32px;
    height: 32px;
    border-radius: 6px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.15s;
}

.pt-btn-del:hover {
    background: rgba(220, 38, 38, 0.08);
    border-color: var(--pt-danger);
}

.pt-btn-add {
    background: none;
    border: 1px dashed var(--pt-primary);
    color: var(--pt-primary);
    padding: 6px 12px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.8rem;
    transition: all 0.15s;
    margin-top: 8px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.pt-btn-add:hover {
    background: rgba(249, 115, 22, 0.05);
}

.pt-row-action {
    display: flex;
    gap: 6px;
    align-items: center;
}

/* Print Override styling */
@media print {
    .no-print, button, .pt-action-row, .pt-export-bar, .pt-tabs-scroll, .pt-preset-bar, .pt-btn-add, .pt-btn-del {
        display: none !important;
    }
    .pt-calc-grid {
        grid-template-columns: 1fr !important;
    }
    .pt-card {
        border: none !important;
        box-shadow: none !important;
        padding: 0 !important;
        page-break-inside: avoid;
    }
}