/* Theory JOIN page - tjn- prefix, page-design skill */
/* Uses var() from themes.css */

#_dash-app-content .tjn-page,
#_pages_content .tjn-page {
    width: 100% !important;
    max-width: none !important;
}

.tjn-page {
    flex: 1 1 0;
    min-height: 0;
    padding: 8px 12px;
    width: 100%;
    max-width: none;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

#_dash-app-content .tjn-page {
    min-height: 60vh;
}

.tjn-split-outer {
    flex: 1 1 0;
    min-height: 400px;
    width: 100%;
    display: flex;
    overflow: hidden;
    gap: 0;
}

.tjn-panel-left {
    flex: 0 0 auto;
    width: 20%;
    min-width: 200px;
    max-width: 280px;
    background: var(--background-color);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.tjn-panel-left .tjn-page-header {
    flex-shrink: 0;
    padding: 8px 8px 0 8px;
}

.tjn-panel-left .tjn-panel-content {
    flex: 1 1 0;
    min-height: 0;
    padding: 8px;
    overflow-y: auto;
    scrollbar-gutter: stable;
    min-width: 0;
}

.tjn-panel-right {
    flex: 1 1 0;
    min-width: 0;
    width: 100%;
    display: flex;
    flex-direction: column;
    background: var(--background-color);
    overflow: hidden;
}

/* Intro and tasks wrappers must fill the panel when visible (display toggled by callback) */
.tjn-panel-right > div {
    flex: 1 1 0;
    min-height: 0;
    flex-direction: column;
    overflow: hidden;
}

.tjn-panel-right .tjn-intro-block {
    flex: 1 1 0;
    min-height: 0;
    overflow-y: auto;
    scrollbar-gutter: stable;
}

.tjn-panel-right .tjn-panel-content {
    flex: 1 1 0;
    min-height: 0;
    padding: 8px 12px;
    overflow-y: auto;
    scrollbar-gutter: stable;
    display: flex;
    flex-direction: column;
}

.tjn-stages-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.tjn-stage-item {
    background: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 4px 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s;
    min-width: 0;
}

.tjn-stage-item:hover {
    background: var(--accent-color);
    border-color: var(--primary-color);
}

.tjn-stage-item.tjn-current {
    background: #e7f1ff;
    border: 2px solid var(--primary-color);
}

.tjn-stage-item.tjn-correct {
    background: #d1e7dd;
    border-left: 4px solid var(--success-color);
}

.tjn-stage-item.tjn-stage-pending .tjn-stage-num {
    background: #bfdbfe;
    color: #1d4ed8;
}

.tjn-stage-num {
    background: #9ca3af;
    color: white;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: var(--font-size-secondary);
    font-weight: 600;
    flex-shrink: 0;
}

.tjn-stage-text {
    font-size: var(--font-size-label);
}

.tjn-stage-item.tjn-current .tjn-stage-num {
    background: var(--primary-color);
}

.tjn-stage-item.tjn-correct .tjn-stage-num {
    background: var(--success-color);
}

.tjn-stage-content {
    display: none;
    flex: 1 1 0;
    min-height: 200px;
    min-width: 0;
    flex-direction: column;
}

.tjn-stage-content.tjn-active {
    display: flex;
}

.tjn-stage-tasks {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.tjn-task-block {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px;
    background: var(--background-color);
}

.tjn-task-block.tjn-task-solved {
    border-left: 4px solid var(--success-color);
    background: #f0f9f4;
}

.tjn-task-title {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 8px;
}

.tjn-instruction {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 12px;
    padding: 6px 0;
}

.tjn-tables-row {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: flex-start;
    gap: 24px;
    margin-bottom: 8px;
}

.tjn-tables-row .tjn-table-wrap {
    flex: 0 0 auto;
    width: max-content;
}

.tjn-table-caption {
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--primary-color);
}

.tjn-query-block .tjn-sql-kw {
    color: var(--primary-color);
    font-weight: 600;
}

.theory-src-table {
    font-size: var(--font-size-secondary);
    border-collapse: collapse;
    width: max-content;
    margin-top: 4px;
}

.theory-src-table th {
    background: var(--background-color);
    color: var(--primary-color);
    font-weight: bold;
    border-bottom: 2px solid var(--primary-color);
    padding: 0px 6px;
    text-align: left;
}

.theory-src-table th.theory-cell-right,
.theory-src-table td.theory-cell-right {
    text-align: right;
}

.theory-src-table td {
    padding: 0px 6px;
    min-width: 50px;
    max-width: 400px;
}

.theory-src-table tbody tr td {
    background: #ffffff;
}

.theory-src-table tr.theory-row-odd td {
    background: var(--accent-color);
}

/* Higher specificity so NULL cells keep yellow even in zebra rows */
.theory-src-table tbody tr td.theory-cell-null {
    background: #fffacd;
    color: #999;
    font-style: italic;
}

.tjn-query-section {
    font-size: 12px;
}

.tjn-query-label {
    font-weight: 600;
    margin-right: 8px;
}

.tjn-query-block {
    font-size: 12px;
    margin-top: 4px;
    color: var(--text-secondary);
    font-family: ui-monospace, "Cascadia Code", "Source Code Pro", Menlo, Monaco, Consolas, monospace;
}

/* Answer row: class theory-answer-row on the flex row; Dash input rules below */

.tjn-textarea {
    max-width: 100%;
    min-width: 300px;
    min-height: 140px;
    font-family: ui-monospace, "Cascadia Code", "Source Code Pro", Menlo, Monaco, Consolas, monospace;
}

.tjn-result {
    font-size: 13px;
}

.tjn-result-ok {
    color: var(--success-color, #198754);
    font-weight: 600;
}

.tjn-result-err {
    color: var(--danger-color, #dc3545);
    font-weight: 500;
}

/* Intro block (stage 0) — marketing-style, scannable */
.tjn-intro-block {
    max-width: 720px;
    padding: 8px 0 8px 16px;
}

.tjn-intro-hero {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.tjn-intro-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.4;
}

.tjn-intro-cards {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 24px;
}

.tjn-intro-card {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    padding: 12px 14px;
    background: var(--accent-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.tjn-intro-icon {
    font-size: 20px;
    color: var(--primary-color);
    flex-shrink: 0;
}

.tjn-intro-card-body {
    flex: 1 1 0;
    min-width: 0;
}

.tjn-intro-card-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 6px;
}

.tjn-intro-order-hint {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-style: italic;
}

.tjn-intro-note {
    font-size: 12px;
    color: var(--text-secondary);
    margin: 12px 0 0 0;
    line-height: 1.45;
}

.tjn-intro-list {
    margin: 0;
    padding-left: 18px;
    font-size: 13px;
    line-height: 1.5;
    color: var(--text-primary);
}

.tjn-intro-list li {
    margin-bottom: 4px;
}

.tjn-intro-list li:last-child {
    margin-bottom: 0;
}

.tjn-intro-block a.tjn-intro-link,
.tjn-intro-block a[href].tjn-intro-link {
    color: var(--primary-color);
    font-weight: 500;
    text-decoration: underline;
}

.tjn-intro-block a.tjn-intro-link:hover,
.tjn-intro-block a[href].tjn-intro-link:hover {
    text-decoration: none;
}

.tjn-intro-btn {
    font-size: 15px;
    padding: 10px 20px;
}

.tjn-intro-reread-btn {
    padding: 4px 8px;
    border-radius: 6px;
}

/* Answer row: same as theory_groupby.css (.tgb-* -> .tjn-*) */
.tjn-task-block > .d-flex.gap-2.flex-wrap {
    width: 100%;
}
.tjn-task-block > .d-flex.gap-2.flex-wrap > :first-child {
    flex: 1 1 0%;
    min-width: 15rem;
    max-width: 100%;
}
.tjn-task-block > .d-flex.gap-2.flex-wrap > input.form-control,
.tjn-task-block > .d-flex.gap-2.flex-wrap > textarea.form-control {
    width: 100%;
    min-width: 15rem;
    max-width: none;
    box-sizing: border-box;
}
.tjn-task-block > .d-flex.gap-2.flex-wrap > div:first-child input.form-control,
.tjn-task-block > .d-flex.gap-2.flex-wrap > div:first-child textarea.form-control {
    width: 100%;
    min-width: 15rem;
    max-width: none;
    box-sizing: border-box;
}
/* Dash: className is on .dash-input-container; inner field is .dash-input-element */
.tjn-task-block .dash-input-container.tjn-input,
.tjn-task-block .dash-input-container.form-control.tjn-input {
    flex: 1 1 0%;
    min-width: 15rem !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
}
.tjn-task-block .dash-input-container.tjn-input.tjn-input-aggregate {
    flex: 0 1 auto !important;
    min-width: 15rem !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
}
.tjn-task-block .dash-input-container input.dash-input-element {
    width: 100% !important;
    max-width: none !important;
    box-sizing: border-box !important;
}
/* predict_count: compact field for row count */
.tjn-task-block .dash-input-container.tjn-input.tjn-input-compact,
.tjn-task-block .dash-input-container.form-control.tjn-input-compact {
    flex: 0 1 auto !important;
    min-width: 9rem !important;
    max-width: 12rem !important;
    width: auto !important;
}
.tjn-task-block > .theory-answer-row > .tjn-answer-field-wrap-aggregate {
    flex: 0 1 auto !important;
    max-width: min(100%, 28rem) !important;
    min-width: 15rem !important;
}
.tjn-task-block > .theory-answer-row > .tjn-answer-field-wrap-compact {
    flex: 0 1 auto !important;
    max-width: min(100%, 12rem) !important;
    min-width: 9rem !important;
}
.tjn-task-block textarea.tjn-textarea {
    min-width: 15rem !important;
    max-width: none !important;
    box-sizing: border-box !important;
}