style.css

@font-face {
    font-family: Roboto;
    src: url(../_fonts/roboto-v29-latin-ext_latin-regular.woff);
}

@font-face {
    font-family: Roboto-Medium;
    src: url(../_fonts/Roboto-Medium.woff);
}

html,
body {
    background: url(../_img/bg.jpg) no-repeat center center fixed;
    background-size: cover;
    font-family: Roboto, "Helvetica Neue", Arial, sans-serif !important;
    font-size: 15px;
    line-height: 1.6;
    color: #1f2937;
    min-height: 100%;
    margin: 0;
    padding: 0;
}

body {
    background-color: #f3f4f6;
}

a {
    text-decoration: none;
}

a:hover {
    text-decoration: none;
}

p {
    margin-top: 0;
    margin-bottom: 0.9rem;
}

.page-shell {
    min-height: 100vh;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 48px 16px;
}

.page-card {
    max-width: 960px;
    background: rgba(255, 255, 255, 0.96);
    padding: 36px 36px 28px;
    box-shadow: 0 10px 32px rgba(0, 0, 0, 0.18);
    backdrop-filter: blur(2px);
}

.page-header,
.content-section {
    width: 100%;
}

.logo-row {
    text-align: right;
}

.header-logo {
    width: 72px !important;
    min-width: 72px;
    max-width: 72px;
    height: auto !important;
    display: inline-block;
}

.kicker {
    margin-bottom: 0.4rem;
    font-size: 0.9rem;
    color: #6b7280;
}

h1,
h2,
h3,
h4,
h5 {
    font-family: Roboto-Medium, Roboto, "Helvetica Neue", Arial, sans-serif;
    font-weight: 500;
    color: #111827;
    margin: 0;
}

h1 {
    font-size: 2rem;
    margin-bottom: 10px;
}

h2 {
    font-size: 1.75rem;
}

h3 {
    font-size: 1.05rem;
    margin-bottom: 4px;
}

.intro,
.section-intro {
    display: block;
    width: 100%;
    max-width: none;
}

.resource-text p,
.site-footer p {
    display: block;
    width: 100%;
    max-width: none;
    margin: 0;
    color: #4b5563;
}

.content-section {
    margin-bottom: 40px;
}

.section-heading {
    margin-bottom: 12px;
    padding-bottom: 10px;
    border-bottom: 1px solid #dee2e6;
}

.section-heading h2 i,
.resource-text h3 i,
.form-label-column i {
    color: #0d6efd;
}

.section-intro {
    margin-bottom: 18px;
}

.config-panel,
.table-card {
    padding: 18px 20px;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    background: #f8fafc;
}

.table-card {
    padding: 0;
}

.field-label {
    font-family: Roboto-Medium, Roboto, "Helvetica Neue", Arial, sans-serif;
    color: #111827;
    margin-bottom: 0;
}

.square-size-group .form-control {
    min-width: 0;
    text-align: center;
}

#square-size-input::-webkit-outer-spin-button,
#square-size-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

#square-size-input[type="number"] {
    -moz-appearance: textfield;
    appearance: textfield;
}

.warning-text {
    margin: 0.45rem 0 0;
    color: #c2410c;
    font-size: 0.95rem;
}

.helper-list {
    margin-top: 18px;
}

.resource-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.resource-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    padding: 14px 16px;
    border: 1px solid #e5e7eb;
    border-radius: 10px;
    background: #f8fafc;
    transition: background-color 0.2s ease, border-color 0.2s ease;
}

.resource-item:hover {
    background: #f1f5f9;
    border-color: #d1d5db;
}

.resource-text {
    flex: 1 1 auto;
    min-width: 0;
}

.resource-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 8px;
    flex: 0 0 auto;
}

.resource-actions .btn i {
    opacity: 0.9;
}

.btn {
    min-width: 72px;
    border-radius: 8px;
    font-size: 1rem;
    padding: 0.5rem 1rem;
}

.btn-primary {
    background-color: #0d6efd;
    border-color: #0d6efd;
}

.btn.disabled,
.btn:disabled {
    pointer-events: none;
    opacity: 0.55;
}

.square-size-group .square-size-stepper {
    min-width: 50px;
    width: 50px;
    padding: 0.375rem 0.65rem;
    flex: 0 0 auto;
}

.latin-square-table {
    margin-bottom: 0;
    text-align: center;
    vertical-align: middle;
    border-color: #dbe3ee;
}

.latin-square-table th,
.latin-square-table td {
    min-width: 88px;
    padding: 0.75rem;
    vertical-align: middle;
}

.latin-square-table thead th {
    background: #eaf1fb;
    color: #0f172a;
    font-family: Roboto-Medium, Roboto, "Helvetica Neue", Arial, sans-serif;
}

.latin-square-table tbody th {
    background: #f8fafc;
}

.latin-square-table input.form-control {
    min-height: 42px;
    text-align: center;
    border-radius: 8px;
    border-color: #cbd5e1;
}

.site-footer {
    margin-top: 8px;
    padding-top: 20px;
    border-top: 1px solid #dee2e6;
    font-size: 0.92rem;
}

.site-footer code {
    white-space: normal;
}

/* Unified source-code box for R snippets in the results/guidance output */
.code-box {
    display: block;
    margin: 0.4rem 0;
    padding: 0.6rem 0.8rem;
    background: #f6f8fa;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    color: #1f2937;
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
    font-size: 0.85rem;
    line-height: 1.5;
    overflow-x: auto;
}

/* Citation box (design ported from the Statistical Decision Tree) */
.source-box,
.citation-box {
    padding: 0.25rem 0;
}

.citation-resource {
    align-items: flex-start;
}

.source-box p,
.citation-box p {
    margin-bottom: 0.85rem;
}

.citation-heading-icon {
    width: 1em;
    height: 1em;
    vertical-align: -0.125em;
    margin-right: 0.45rem;
}

.citation-copy {
    display: block;
    padding: 0.95rem 1rem;
    border-radius: 14px;
    background: #f5ecd3;
    border: 1px solid #e4d5b0;
    border-left: 4px solid #b8860b;
    white-space: normal;
    color: #374151;
}

.citation-actions {
    margin-top: 12px;
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.citation-copy-btn.btn {
    font-size: 0.85rem;
    color: #8a6508;
    background: transparent;
    border: 1px solid #b8860b;
}

.citation-copy-btn.btn:hover,
.citation-copy-btn.btn:focus {
    background: #b8860b;
    color: #fff;
}

.hidden {
    display: none;
}

input.error,
select.error {
    border: 2px solid red;
}

label.error {
    color: red;
    font-weight: bold;
    display: inline-block;
}

@media print {
    @page {
        size: auto;
        margin-left: 12mm;
        margin-right: 12mm;
        margin-top: 15mm;
        margin-bottom: 15mm;
    }

    html,
    body {
        background: white !important;
        font-size: 15pt !important;
    }

    .page-shell {
        padding: 0;
    }

    .page-card {
        box-shadow: none;
        background: white;
        padding: 0;
        max-width: none;
    }

    .resource-actions,
    #githublink {
        display: none !important;
    }

    .latin-square-table {
        font-size: 14pt;
    }
}

@media (max-width: 767.98px) {
    .page-shell {
        padding: 20px 10px;
    }

    .page-card {
        padding: 22px 18px;
    }

    .resource-item {
        flex-direction: column;
        align-items: flex-start;
    }

    .resource-actions {
        justify-content: flex-start;
        width: 100%;
    }

    .header-logo {
        width: 72px;
    }

    .warning-text {
        margin-top: 0;
    }
}


.tool-form + .tool-form {
    margin-top: 12px;
}

.form-label-column,
.metric-label {
    font-family: Roboto-Medium, Roboto, "Helvetica Neue", Arial, sans-serif;
    color: #111827;
}

.selection-list {
    list-style: none;
    padding-left: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.selection-list-cards,
.selection-item {
    width: 100%;
}

.token-input-shell {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    min-height: 48px;
    padding: 8px 10px;
    border: 1px solid #ced4da;
    border-radius: 8px;
    background: #fff;
}

.token-input-shell.is-invalid {
    border-color: #dc3545;
}

.token-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.token-input-field {
    flex: 1 1 220px;
    min-width: 160px;
    border: 0;
    box-shadow: none !important;
    padding-left: 0;
    padding-right: 0;
}

.token-input-field:focus {
    outline: none;
}

.level-token,
.selection-level-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 0.35rem 0.65rem;
    border-radius: 999px;
    border: 1px solid #dbe3ee;
    background: #f8fafc;
    font-size: 0.85rem;
}

.level-token-remove {
    min-width: 32px;
    width: 32px;
    height: 32px;
    padding: 0;
    border: 0;
    border-radius: 999px;
    background: transparent;
    color: #475569;
}

.selection-item {
    margin: 0;
}

.selection-card {
    display: grid;
    align-items: flex-start;
    gap: 8px;
    padding: 10px 12px;
    border: 1px solid #d1d5db;
    border-radius: 10px;
    background: #fff;
}

.selection-card-iv {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.selection-card-dv {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.selection-card-main {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    min-width: 0;
    width: 100%;
}

.selection-card-primary {
    flex: 1 1 auto;
}

.selection-card-config {
    width: 100%;
}

.selection-card-config .selection-field {
    min-width: 0;
    width: 100%;
}

.selection-card-config .form-select,
.selection-card-config .form-control {
    width: 100%;
    max-width: 100%;
}

.selection-field-empty {
    min-height: 1px;
}

.selection-card-levels {
    grid-column: 1 / -1;
    width: 100%;
}

.selection-copy {
    min-width: 0;
    flex: 1 1 auto;
}

.selection-name-input {
    border: 0;
    padding: 0;
    font-family: Roboto-Medium, Roboto, "Helvetica Neue", Arial, sans-serif;
    color: #111827;
    background: transparent;
    box-shadow: none !important;
    min-height: 32px;
    resize: none;
    overflow: hidden;
    white-space: pre-wrap;
    word-break: break-word;
    line-height: 1.35;
}

.selection-title-row {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    flex-wrap: nowrap;
    width: 100%;
}

.selection-title {
    font-family: Roboto-Medium, Roboto, "Helvetica Neue", Arial, sans-serif;
    color: #111827;
}

.selection-meta,
.selection-levels,
.selection-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.selection-inline-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 10px;
}

.selection-inline-controls-stack {
    display: block;
}

.selection-field {
    min-width: 150px;
}

.selection-field-grow {
    flex: 1 1 auto;
}

.selection-field-label {
    display: block;
    margin-bottom: 4px;
    font-size: 0.8rem;
    color: #475569;
}

.selection-meta {
    margin-top: 6px;
}

.selection-levels {
    margin-top: 8px;
    gap: 6px;
    display: flex;
    flex-wrap: wrap;
    width: 100%;
}

.selection-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.55rem;
    border-radius: 999px;
    background: #eaf1fb;
    color: #0f172a;
    font-size: 0.78rem;
}

.selection-actions {
    flex: 0 0 auto;
    display: flex;
    flex-direction: row;
    align-items: flex-start;
    justify-content: flex-end;
    gap: 4px;
    width: 100%;
}

.selection-actions .btn {
    min-width: 32px;
    width: 32px;
    height: 32px;
    padding: 0;
    border-radius: 6px;
    font-size: 0.8rem;
}

.selection-item.dragging .selection-card {
    opacity: 0.7;
}

.selection-item.drag-over .selection-card {
    border-top: 3px solid #0d6efd;
}

.selection-item.drag-over-after .selection-card {
    border-bottom: 3px solid #0d6efd;
}

.selection-level-chip .selection-level-remove,
.selection-level-remove {
    min-width: 28px;
    width: 28px;
    height: 28px;
    padding: 0;
    border: 0;
    background: transparent;
    color: #475569;
}

.selection-level-input {
    width: 100%;
    max-width: none;
}

#addIV,
#addDV {
    width: 100%;
}

.metrics-panel .metric-row + .metric-row {
    border-top: 1px solid #e5e7eb;
    padding-top: 14px;
}

.range-control {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.range-control input[type="range"] {
    flex: 1 1 260px;
    min-width: 220px;
}

.range-control output {
    min-width: 64px;
    padding: 0.25rem 0.65rem;
    border-radius: 999px;
    background: #eaf1fb;
    color: #0f172a;
    font-family: Roboto-Medium, Roboto, "Helvetica Neue", Arial, sans-serif;
    text-align: center;
}

.checkbox-row {
    color: #374151;
}

.results-card {
    padding: 18px 20px;
}

#resultsPanel .section-block-title { 
    margin-bottom: 18px;
}

.status-text {
    margin: 0;
    color: #4b5563;
}

.section-block-title h5 {
    margin-bottom: 0;
    font-size: 1.1rem;
}

.content-output {
    color: #374151;
}

.example-actions .btn {
    min-width: 210px;
}

#resultsPanel .accordion-item,
#power .accordion-item,
#design .accordion-item,
#results .accordion-item {
    border: 1px solid #e5e7eb;
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 10px;
}

#resultsPanel .accordion-button,
#power .accordion-button,
#design .accordion-button,
#results .accordion-button {
    background: #f8fafc;
    color: #111827;
    font-family: Roboto-Medium, Roboto, "Helvetica Neue", Arial, sans-serif;
    box-shadow: none;
}

#resultsPanel .accordion-button:not(.collapsed),
#power .accordion-button:not(.collapsed),
#design .accordion-button:not(.collapsed),
#results .accordion-button:not(.collapsed) {
    background: #eaf1fb;
    color: #0f172a;
}

#resultsPanel .accordion-body,
#power .accordion-body,
#design .accordion-body,
#results .accordion-body {
    background: #fff;
}

.table-card .table {
    margin-bottom: 0;
}

.table-card .table thead th {
    background: #eaf1fb;
    color: #0f172a;
    font-family: Roboto-Medium, Roboto, "Helvetica Neue", Arial, sans-serif;
}

.table-card .table tbody th {
    background: #f8fafc;
}

.power-output-table {
    font-size: 0.9rem;
}

.power-output-table th,
.power-output-table td {
    white-space: nowrap;
    vertical-align: middle;
}

.power-output-table .anova-target-power-input {
    min-width: 72px;
    font-size: 0.9rem;
}

.chart-shell {
    position: relative;
    width: 100%;
    min-height: 280px;
}

.chart-shell canvas {
    width: 100% !important;
    height: 100% !important;
}

.helper-copy {
    color: #6b7280;
}

.formula-stack {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    line-height: 1.55;
}

.formula-stack p {
    margin: 0;
}

.formula-stack math {
    display: block;
    padding: 0.9rem 1rem;
    border: 1px solid #dbe3ee;
    border-radius: 10px;
    background: #f8fafc;
    font-size: 1.18rem;
    overflow-x: auto;
    text-align: center;
    margin-left: auto;
    margin-right: auto;
}

@media (max-width: 991.98px) {
    .example-actions .btn {
        min-width: 0;
        width: 100%;
    }

    .range-control input[type="range"] {
        min-width: 100%;
    }

    .selection-card {
        grid-template-columns: 1fr;
    }

    .selection-card-config {
        width: 100%;
        flex: 1 1 auto;
    }

    .selection-actions {
        width: 100%;
        flex-direction: row;
        justify-content: flex-end;
    }
}