.module-two-layout .lesson-hero {
    background:
        radial-gradient(circle at 12% 12%, rgba(124, 92, 255, 0.24), transparent 34%),
        radial-gradient(circle at 88% 18%, rgba(40, 213, 255, 0.18), transparent 30%),
        color-mix(in srgb, var(--surface) 92%, transparent);
}

.module-two-intro-card {
    border-color: rgba(40, 213, 255, 0.24);
}

.module-two-accordions .interactive-lab {
    overflow: hidden;
}

.module-two-accordions button,
.module-two-accordions input,
.module-two-accordions textarea,
.module-two-accordions select {
    font: inherit;
}

.module-two-accordions input,
.module-two-accordions textarea,
.module-two-accordions select {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 11px 12px;
    background: color-mix(in srgb, var(--surface-2) 92%, transparent);
    color: var(--text);
}

.module-two-accordions textarea {
    resize: vertical;
}

.m2-overview-grid,
.challenge-feature-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

.m2-overview-grid article,
.challenge-feature-grid article {
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: color-mix(in srgb, var(--surface-2) 84%, transparent);
}

.m2-overview-grid i,
.challenge-feature-grid i {
    margin-bottom: 14px;
    color: var(--secondary);
    font-size: 1.45rem;
}

.m2-overview-grid h3,
.m2-overview-grid p,
.challenge-feature-grid h3,
.challenge-feature-grid p {
    margin-bottom: 6px;
}

.m2-goal-banner,
.m2-key-note,
.privacy-warning {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    margin-top: 18px;
    padding: 16px;
    border: 1px solid rgba(40, 213, 255, 0.25);
    border-radius: 8px;
    background: rgba(40, 213, 255, 0.07);
}

.m2-goal-banner > span,
.privacy-warning > i {
    color: var(--secondary);
    font-size: 1.35rem;
}

.m2-goal-banner p,
.m2-key-note,
.privacy-warning p {
    margin-bottom: 0;
}

.m2-lab-controls {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 16px;
}

/* Anatomie */
.m2-flow-stage {
    position: relative;
    display: grid;
    grid-template-columns: repeat(13, minmax(0, auto));
    align-items: center;
    justify-content: center;
    gap: 9px;
    min-height: 180px;
    padding: 26px 18px;
    border: 1px solid rgba(40, 213, 255, 0.18);
    border-radius: 8px;
    background:
        linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
        #0b1024;
    background-size: 32px 32px;
}

.m2-flow-node {
    position: relative;
    z-index: 2;
    display: grid;
    min-width: 96px;
    min-height: 94px;
    place-items: center;
    gap: 6px;
    padding: 12px 8px;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 8px;
    background: rgba(17, 22, 41, 0.94);
    color: #aab3c5;
    text-align: center;
    transition: 180ms ease;
}

.m2-flow-node i {
    color: #28d5ff;
    font-size: 1.25rem;
}

.m2-flow-node span {
    font-size: 0.78rem;
    font-weight: 800;
}

.m2-flow-node.is-active {
    border-color: #28d5ff;
    background: rgba(40, 213, 255, 0.14);
    color: #fff;
    box-shadow: 0 0 28px rgba(40, 213, 255, 0.26);
    transform: translateY(-3px);
}

.m2-flow-stage > .fa-arrow-right,
.controller-route > .fa-arrow-right,
.codex-response-flow > .fa-arrow-right {
    color: rgba(40, 213, 255, 0.55);
}

.m2-flow-packet {
    position: absolute;
    z-index: 3;
    top: 16px;
    left: 5%;
    display: grid;
    width: 40px;
    height: 40px;
    place-items: center;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #fff;
    box-shadow: 0 0 24px rgba(40, 213, 255, 0.38);
    transition: left 420ms ease, top 420ms ease;
}

.m2-flow-explanation,
.controller-console,
.codex-response-detail {
    margin-top: 14px;
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: color-mix(in srgb, var(--surface-2) 86%, transparent);
}

.m2-flow-explanation h3,
.controller-console h3,
.codex-response-detail h3 {
    margin-bottom: 6px;
}

.m2-flow-explanation pre,
.controller-console pre,
.codex-response-detail pre {
    overflow-x: auto;
    margin: 12px 0 0;
    padding: 13px;
    border-radius: 8px;
    background: #070b18;
    color: #c8f4ff;
}

/* HTML */
.html-inspector-grid,
.ui-vocabulary-grid,
.request-demo-grid,
.m2-json-grid,
.assistant-builder-grid,
.library-detail {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.taskflow-preview-panel,
.html-code-panel,
.ui-demo-shell,
.ui-definition-panel,
.request-form-panel,
.request-travel-stage,
.m2-json-editor,
.task-json-card,
.assistant-builder-form,
.assistant-result,
.library-detail {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: color-mix(in srgb, var(--surface-2) 88%, transparent);
}

.taskflow-preview-panel,
.html-code-panel {
    overflow: hidden;
}

.demo-browser-bar {
    display: flex;
    align-items: center;
    gap: 7px;
    min-height: 46px;
    padding: 0 14px;
    border-bottom: 1px solid var(--line);
    background: rgba(7, 11, 24, 0.72);
}

.demo-browser-bar span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #ff625f;
}

.demo-browser-bar span:nth-child(2) { background: #ffbd2e; }
.demo-browser-bar span:nth-child(3) { background: #28c840; }
.demo-browser-bar strong { margin-left: 8px; }

.taskflow-preview-content {
    padding: 20px;
    background: #f4f7fb;
    color: #121827;
}

.taskflow-preview-content h1,
.taskflow-preview-content h2,
.taskflow-preview-content p {
    margin-bottom: 10px;
}

.taskflow-preview-content form {
    display: grid;
    gap: 10px;
    margin: 16px 0;
    padding: 14px;
    border: 1px solid #d7deea;
    border-radius: 8px;
    background: #fff;
}

.taskflow-preview-content label {
    display: grid;
    gap: 5px;
    font-size: 0.78rem;
    font-weight: 800;
}

.taskflow-preview-content input,
.taskflow-preview-content textarea,
.taskflow-preview-content select {
    background: #fff;
    color: #121827;
}

.taskflow-preview-content button {
    min-height: 40px;
    border: 0;
    border-radius: 8px;
    background: #315efb;
    color: #fff;
    font-weight: 900;
}

.html-choice-row {
    display: flex;
    gap: 18px;
}

.html-choice-row label {
    display: flex;
    align-items: center;
}

.html-choice-row input {
    width: auto;
}

.taskflow-preview-content table {
    width: 100%;
    border-collapse: collapse;
}

.taskflow-preview-content th,
.taskflow-preview-content td {
    border: 1px solid #d7deea;
    padding: 8px;
    text-align: left;
}

[data-html-tag].is-highlighted {
    outline: 3px solid #7c5cff;
    outline-offset: 3px;
}

.code-window-title {
    padding: 12px 16px;
    border-bottom: 1px solid var(--line);
    font-weight: 900;
}

.html-code-panel pre {
    overflow: auto;
    max-height: 520px;
    margin: 0;
    padding: 18px;
    background: #070b18;
    color: #d8e7ff;
    line-height: 1.8;
}

.html-code-panel [data-html-code] {
    display: inline-block;
    border-radius: 4px;
    padding: 0 3px;
    transition: 160ms ease;
}

.html-code-panel [data-html-code].is-highlighted {
    background: rgba(40, 213, 255, 0.22);
    color: #fff;
    box-shadow: 0 0 16px rgba(40, 213, 255, 0.15);
}

.html-term-help {
    padding: 16px;
    border-top: 1px solid var(--line);
}

.html-term-help strong {
    color: var(--secondary);
}

.html-term-help p {
    margin: 6px 0 0;
}

/* Vocabulaire UI */
.ui-term-list,
.relation-tabs,
.db-action-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.ui-term-list button,
.relation-tabs button,
.db-action-bar button {
    min-height: 38px;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 7px 11px;
    background: var(--surface-2);
    color: var(--text);
    cursor: pointer;
}

.ui-term-list button.is-active,
.relation-tabs button.is-active {
    border-color: var(--secondary);
    background: rgba(40, 213, 255, 0.12);
    color: var(--secondary);
}

.ui-demo-shell {
    position: relative;
    overflow: hidden;
    display: grid;
    grid-template-columns: 120px 1fr;
    grid-template-rows: 48px 1fr 38px;
    min-height: 520px;
}

.ui-demo-shell > header,
.ui-demo-shell > footer {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 14px;
    background: rgba(40, 213, 255, 0.08);
}

.ui-demo-shell > header span {
    border-radius: 999px;
    padding: 4px 8px;
    background: rgba(255, 107, 145, 0.15);
    color: var(--danger);
    font-size: 0.72rem;
}

.ui-demo-shell aside {
    display: grid;
    align-content: start;
    gap: 10px;
    padding: 14px;
    border-right: 1px solid var(--line);
}

.ui-demo-shell main {
    overflow-y: auto;
    display: grid;
    align-content: start;
    gap: 12px;
    max-height: 434px;
    padding: 14px;
}

.ui-demo-shell main > * {
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 10px;
}

.ui-demo-toolbar {
    display: grid;
    grid-template-columns: 1fr 120px auto;
    gap: 8px;
}

.ui-demo-toolbar label {
    display: flex;
    align-items: center;
    gap: 6px;
}

.ui-demo-toolbar input[type="checkbox"] {
    width: auto;
}

.ui-demo-shell nav,
.ui-demo-table {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
}

.ui-demo-modal {
    position: absolute;
    right: 18px;
    bottom: 54px;
    display: grid;
    gap: 8px;
    width: 180px;
    padding: 14px;
    border: 1px solid rgba(124, 92, 255, 0.55);
    border-radius: 8px;
    background: var(--surface);
    box-shadow: var(--shadow);
}

.ui-demo-shell [data-ui-target].is-highlighted {
    outline: 3px solid var(--secondary);
    outline-offset: 2px;
    box-shadow: 0 0 20px rgba(40, 213, 255, 0.22);
}

.ui-definition-panel {
    align-self: start;
    padding: 22px;
}

.ui-prompt-example {
    display: flex;
    gap: 10px;
    margin-top: 18px;
    padding: 14px;
    border-left: 3px solid var(--secondary);
    background: rgba(40, 213, 255, 0.07);
}

/* GET / POST */
.request-form-panel,
.request-travel-stage {
    min-height: 220px;
    padding: 20px;
}

.request-form-panel {
    display: grid;
    align-content: center;
    gap: 10px;
}

.request-travel-stage {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background:
        linear-gradient(90deg, rgba(40, 213, 255, 0.08), rgba(124, 92, 255, 0.08)),
        color-mix(in srgb, var(--surface-2) 90%, transparent);
}

.request-browser,
.request-server {
    display: grid;
    width: 110px;
    min-height: 100px;
    place-items: center;
    border: 1px solid var(--line);
    border-radius: 8px;
    text-align: center;
}

.request-packet {
    position: absolute;
    left: 18%;
    display: grid;
    min-width: 66px;
    min-height: 46px;
    place-items: center;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #fff;
    font-weight: 900;
    transition: left 800ms ease;
}

.request-method-lab.is-sending .request-packet {
    left: 70%;
}

.request-results,
.api-inspector-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    margin-top: 16px;
}

.request-results article,
.api-inspector-grid article {
    min-width: 0;
    padding: 15px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: color-mix(in srgb, var(--surface-2) 88%, transparent);
}

.request-results span,
.api-inspector-grid article > span {
    display: block;
    margin-bottom: 8px;
    color: var(--muted);
    font-size: 0.76rem;
    font-weight: 900;
    text-transform: uppercase;
}

.request-results code,
.request-results pre,
.api-inspector-grid pre {
    overflow-wrap: anywhere;
    white-space: pre-wrap;
}

/* phpMyAdmin */
.phpmyadmin-shell {
    display: grid;
    grid-template-columns: 190px minmax(0, 1fr);
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 8px;
}

.phpmyadmin-shell aside {
    display: grid;
    align-content: start;
    gap: 12px;
    padding: 18px;
    border-right: 1px solid var(--line);
    background: color-mix(in srgb, var(--surface-2) 92%, transparent);
}

.phpmyadmin-shell aside button {
    border: 0;
    padding: 8px;
    background: transparent;
    color: var(--text);
    text-align: left;
}

.phpmyadmin-shell aside button.is-muted { color: var(--muted); }
.phpmyadmin-shell aside button.is-ready { color: var(--secondary); }

.phpmyadmin-workspace {
    min-width: 0;
    padding: 18px;
}

.db-action-bar button:disabled {
    cursor: not-allowed;
    opacity: 0.45;
}

.db-table-wrap {
    overflow-x: auto;
}

.db-table-wrap table {
    width: 100%;
    border-collapse: collapse;
}

.db-table-wrap th,
.db-table-wrap td {
    border: 1px solid var(--line);
    padding: 10px;
    text-align: left;
}

.db-table-wrap th {
    background: rgba(40, 213, 255, 0.08);
}

.db-sql-output {
    overflow-x: auto;
    min-height: 88px;
    margin: 16px 0 0;
    padding: 14px;
    border-radius: 8px;
    background: #070b18;
    color: #c8f4ff;
}

.db-concepts-row,
.json-concepts {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 14px;
}

.db-concepts-row span,
.json-concepts span {
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 7px 10px;
    background: var(--surface-2);
    font-size: 0.78rem;
}

/* Relations */
.relation-stage {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 0.8fr) auto minmax(0, 1fr);
    align-items: center;
    gap: 12px;
    min-height: 260px;
    padding: 20px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: color-mix(in srgb, var(--surface-2) 84%, transparent);
}

.relation-table {
    overflow: hidden;
    border: 1px solid rgba(40, 213, 255, 0.28);
    border-radius: 8px;
    background: var(--surface);
}

.relation-table strong,
.relation-table span {
    display: block;
    padding: 9px 12px;
}

.relation-table strong {
    background: rgba(40, 213, 255, 0.10);
}

.relation-table span + span {
    border-top: 1px solid var(--line);
}

.relation-connector {
    color: var(--secondary);
    font-weight: 900;
}

.relation-explanation {
    margin-top: 14px;
    padding: 18px;
    border-left: 3px solid var(--primary);
    background: rgba(124, 92, 255, 0.07);
}

.relation-explanation pre {
    margin-bottom: 0;
}

/* JSON */
.m2-json-editor,
.task-json-card,
.assistant-builder-form,
.assistant-result {
    padding: 20px;
}

.m2-json-editor label,
.assistant-builder-form label {
    display: block;
    margin-bottom: 7px;
    font-weight: 900;
}

.m2-json-editor textarea {
    min-height: 280px;
    background: #070b18;
    color: #d8e7ff;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    line-height: 1.7;
}

.m2-json-editor p {
    margin: 8px 0 0;
    color: var(--success);
}

.m2-json-editor p.is-error {
    color: var(--danger);
}

.task-json-card {
    align-self: center;
    min-height: 230px;
    background:
        radial-gradient(circle at 90% 10%, rgba(40, 213, 255, 0.16), transparent 30%),
        color-mix(in srgb, var(--surface-2) 88%, transparent);
}

.task-json-card.is-done h3 {
    color: var(--muted);
    text-decoration: line-through;
}

.task-priority {
    display: inline-flex;
    border-radius: 999px;
    padding: 6px 9px;
    font-size: 0.72rem;
    font-weight: 900;
}

.task-priority.high { background: rgba(255, 107, 145, 0.15); color: var(--danger); }
.task-priority.medium { background: rgba(255, 191, 71, 0.15); color: var(--warning); }
.task-priority.low { background: rgba(67, 217, 139, 0.15); color: var(--success); }

.task-json-card h3 {
    margin-top: 26px;
}

.task-json-card [data-json-tags] {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    margin-top: 22px;
}

.task-json-card [data-json-tags] span {
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 5px 8px;
    font-size: 0.72rem;
}

/* Controllers */
.controller-route,
.codex-response-flow {
    display: grid;
    grid-template-columns: repeat(9, minmax(0, auto));
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 22px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: color-mix(in srgb, var(--surface-2) 86%, transparent);
}

.controller-node,
.codex-response-flow > div {
    display: grid;
    min-width: 115px;
    min-height: 96px;
    place-items: center;
    gap: 7px;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    text-align: center;
    transition: 180ms ease;
}

.controller-node span,
.codex-response-flow span {
    font-size: 0.78rem;
    font-weight: 800;
}

.controller-node.is-active,
.codex-response-flow > div.is-active {
    border-color: var(--secondary);
    background: rgba(40, 213, 255, 0.10);
    box-shadow: 0 0 22px rgba(40, 213, 255, 0.18);
}

/* API */
.api-request-builder {
    display: grid;
    grid-template-columns: auto minmax(170px, auto) minmax(180px, 1fr) auto;
    align-items: center;
    gap: 10px;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: color-mix(in srgb, var(--surface-2) 86%, transparent);
}

.api-method {
    border-radius: 6px;
    padding: 6px 9px;
    background: rgba(124, 92, 255, 0.18);
    color: #bcb1ff;
    font-weight: 900;
}

.api-status-code {
    display: block;
    color: var(--secondary);
    font-size: 2.1rem;
}

.api-status-code.is-error { color: var(--danger); }
.api-status-code.is-success { color: var(--success); }

/* Stockage */
.storage-option-grid,
.library-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
}

.library-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
}

.storage-option-grid button,
.library-grid button {
    display: grid;
    min-height: 128px;
    place-items: center;
    gap: 5px;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 14px;
    background: color-mix(in srgb, var(--surface-2) 86%, transparent);
    color: var(--text);
    cursor: pointer;
}

.storage-option-grid button i,
.library-grid button i {
    color: var(--secondary);
    font-size: 1.5rem;
}

.storage-option-grid button span,
.library-grid button span {
    color: var(--muted);
    font-size: 0.75rem;
}

.storage-option-grid button.is-active,
.library-grid button.is-active {
    border-color: var(--secondary);
    background: rgba(40, 213, 255, 0.10);
}

.storage-option-detail {
    display: grid;
    grid-template-columns: 90px 1fr;
    gap: 18px;
    margin-top: 16px;
    padding: 20px;
    border: 1px solid var(--line);
    border-radius: 8px;
}

.storage-option-detail > div:first-child {
    display: grid;
    width: 90px;
    height: 90px;
    place-items: center;
    border-radius: 8px;
    background: rgba(40, 213, 255, 0.09);
    color: var(--secondary);
    font-size: 2rem;
}

.privacy-warning {
    border-color: rgba(255, 191, 71, 0.35);
    background: rgba(255, 191, 71, 0.08);
}

.privacy-warning > i { color: var(--warning); }

/* Librairies */
.library-detail {
    align-items: center;
    margin-top: 16px;
    padding: 20px;
}

.library-preview {
    display: flex;
    min-height: 210px;
    align-items: flex-end;
    justify-content: center;
    gap: 14px;
    padding: 24px;
    border-radius: 8px;
    background: #070b18;
}

.library-preview span {
    width: 36px;
    border-radius: 5px 5px 0 0;
    background: linear-gradient(180deg, var(--secondary), var(--primary));
    transition: height 280ms ease;
}

/* Réponse Codex */
.codex-response-flow {
    grid-template-columns: repeat(11, minmax(0, auto));
    overflow-x: auto;
    justify-content: start;
}

.codex-response-flow > div {
    min-width: 125px;
}

.m2-check-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    margin: 16px 0 0;
    padding: 0;
    list-style: none;
}

.m2-check-list li {
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
}

.m2-check-list i {
    margin-right: 7px;
    color: var(--success);
}

/* Assistant */
.assistant-builder-form {
    display: grid;
    align-content: start;
    gap: 10px;
}

.assistant-builder-form textarea {
    min-height: 150px;
}

.assistant-result .prompt-box {
    max-height: 360px;
}

/* Mission */
.taskflow-mission-lab .mission-progress {
    margin-bottom: 16px;
}

.taskflow-mission-lab .mission-checklist label {
    min-height: 68px;
}

.taskflow-mission-lab .mission-checklist span {
    display: grid;
}

.taskflow-mission-lab .mission-complete {
    margin: 16px 0;
}

.taskflow-mission-lab .mission-complete > i {
    color: var(--success);
    font-size: 2rem;
}

.taskflow-main-prompt {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--line);
}

/* Light mode */
[data-theme="light"] .m2-flow-stage,
[data-theme="light"] .m2-flow-explanation pre,
[data-theme="light"] .controller-console pre,
[data-theme="light"] .codex-response-detail pre,
[data-theme="light"] .db-sql-output,
[data-theme="light"] .m2-json-editor textarea,
[data-theme="light"] .library-preview,
[data-theme="light"] .html-code-panel pre {
    background: #10182a;
    color: #eef8ff;
}

[data-theme="light"] .m2-flow-node {
    border-color: rgba(15, 23, 42, 0.15);
    background: rgba(255, 255, 255, 0.94);
    color: #374151;
}

[data-theme="light"] .m2-flow-node.is-active {
    border-color: #0284c7;
    background: #e7f8ff;
    color: #121827;
}

[data-theme="light"] .demo-browser-bar {
    background: #e9eef7;
}

/* Responsive */
@media (max-width: 1080px) {
    .m2-flow-stage,
    .controller-route {
        grid-template-columns: 1fr;
        justify-items: stretch;
    }

    .m2-flow-stage > .fa-arrow-right,
    .controller-route > .fa-arrow-right {
        transform: rotate(90deg);
        justify-self: center;
    }

    .m2-flow-node,
    .controller-node {
        width: 100%;
        min-height: 68px;
    }

    .m2-flow-packet {
        display: none;
    }

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

    .phpmyadmin-shell {
        grid-template-columns: 150px minmax(0, 1fr);
    }
}

@media (max-width: 820px) {
    .m2-overview-grid,
    .challenge-feature-grid,
    .request-results,
    .api-inspector-grid {
        grid-template-columns: 1fr;
    }

    .html-inspector-grid,
    .ui-vocabulary-grid,
    .request-demo-grid,
    .m2-json-grid,
    .assistant-builder-grid,
    .library-detail {
        grid-template-columns: 1fr;
    }

    .storage-option-grid,
    .library-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .api-request-builder {
        grid-template-columns: auto 1fr;
    }

    .api-request-builder input,
    .api-request-builder button {
        grid-column: 1 / -1;
    }

    .relation-stage {
        grid-template-columns: 1fr;
    }

    .relation-connector {
        justify-self: center;
        transform: rotate(90deg);
    }

    .relation-middle[hidden],
    .relation-second[hidden] {
        display: none;
    }

    .phpmyadmin-shell {
        grid-template-columns: 1fr;
    }

    .phpmyadmin-shell aside {
        border-right: 0;
        border-bottom: 1px solid var(--line);
    }
}

@media (max-width: 600px) {
    .m2-lab-controls,
    .html-choice-row {
        align-items: stretch;
        flex-direction: column;
    }

    .storage-option-grid,
    .library-grid,
    .m2-check-list {
        grid-template-columns: 1fr;
    }

    .ui-demo-shell {
        grid-template-columns: 1fr;
        grid-template-rows: auto;
    }

    .ui-demo-shell > header,
    .ui-demo-shell > footer {
        grid-column: 1;
        min-height: 44px;
    }

    .ui-demo-shell aside {
        grid-template-columns: repeat(2, 1fr);
        border-right: 0;
        border-bottom: 1px solid var(--line);
    }

    .ui-demo-toolbar {
        grid-template-columns: 1fr;
    }

    .ui-demo-modal {
        position: static;
        width: auto;
        margin: 12px;
    }

    .request-travel-stage {
        min-height: 260px;
        flex-direction: column;
    }

    .request-packet {
        top: 42%;
        left: calc(50% - 33px);
    }

    .request-method-lab.is-sending .request-packet {
        top: 63%;
        left: calc(50% - 33px);
    }

    .storage-option-detail {
        grid-template-columns: 1fr;
    }
}

/* Immersive Module 2 scenes */
.m2-action-composer {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: 12px;
    margin-bottom: 14px;
    padding: 16px;
    border: 1px solid rgba(40, 213, 255, 0.24);
    border-radius: 8px;
    background: rgba(40, 213, 255, 0.06);
}

.m2-action-composer label {
    display: block;
    margin-bottom: 6px;
    font-weight: 900;
}

.m2-flow-stage {
    position: relative;
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    align-items: center;
    gap: 18px;
    min-height: 290px;
    padding: 74px 24px 34px;
}

.m2-flow-lines {
    position: absolute;
    inset: 65px 5% auto;
    width: 90%;
    height: 130px;
    overflow: visible;
}

.m2-flow-lines path {
    fill: none;
    stroke: rgba(40, 213, 255, 0.42);
    stroke-width: 0.55;
    stroke-dasharray: 2 2;
    filter: drop-shadow(0 0 5px rgba(40, 213, 255, 0.32));
}

.m2-flow-node {
    min-width: 0;
    min-height: 126px;
}

.m2-flow-node strong,
.m2-flow-node span {
    display: block;
}

.m2-flow-node strong {
    font-size: 0.9rem;
}

.m2-flow-node span {
    color: var(--muted);
    font-size: 0.72rem;
}

.m2-flow-node.is-visited {
    border-color: rgba(67, 217, 139, 0.42);
    background: rgba(67, 217, 139, 0.08);
}

.m2-task-packet {
    position: absolute;
    z-index: 5;
    top: 34px;
    left: 5%;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    align-items: center;
    gap: 7px;
    width: 132px;
    min-height: 48px;
    border: 1px solid rgba(255, 255, 255, 0.32);
    border-radius: 8px;
    padding: 8px 10px;
    background: linear-gradient(135deg, #7c5cff, #168cbd);
    color: #fff;
    box-shadow: 0 0 30px rgba(40, 213, 255, 0.38);
    transition: left 950ms cubic-bezier(0.22, 1, 0.36, 1);
}

.m2-task-packet[hidden],
.m2-flow-bubble[hidden],
.m2-created-task[hidden] {
    display: none;
}

.m2-task-packet span {
    overflow: hidden;
    font-size: 0.72rem;
    font-weight: 900;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.m2-flow-bubble {
    position: absolute;
    z-index: 4;
    top: 4px;
    left: 4%;
    max-width: 210px;
    border: 1px solid rgba(124, 92, 255, 0.48);
    border-radius: 8px;
    padding: 8px 11px;
    background: rgba(11, 16, 36, 0.96);
    color: #eef7ff;
    font-size: 0.76rem;
    font-weight: 800;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.28);
    transition: left 950ms cubic-bezier(0.22, 1, 0.36, 1);
}

.m2-created-task {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 14px;
    padding: 14px;
    border: 1px solid rgba(67, 217, 139, 0.38);
    border-radius: 8px;
    background: rgba(67, 217, 139, 0.09);
    animation: m2-result-in 360ms ease both;
}

.m2-created-task i { color: var(--success); }
.m2-created-task strong { margin-left: auto; color: var(--success); }

@keyframes m2-result-in {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* HTML floating help */
.html-tag-tooltip {
    position: fixed;
    z-index: 1000;
    display: grid;
    max-width: 250px;
    gap: 4px;
    border: 1px solid rgba(40, 213, 255, 0.42);
    border-radius: 8px;
    padding: 10px 12px;
    background: rgba(7, 11, 24, 0.96);
    color: #f4f7fb;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.38);
    pointer-events: none;
}

.html-tag-tooltip[hidden] { display: none; }
.html-tag-tooltip strong { color: #28d5ff; }
.html-tag-tooltip span { font-size: 0.78rem; }

/* GET / POST network scene */
.request-network-scene {
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: color-mix(in srgb, var(--surface-2) 88%, transparent);
}

.request-url-window {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-bottom: 1px solid var(--line);
    background: rgba(7, 11, 24, 0.64);
}

.request-url-window .browser-dots {
    display: flex;
    gap: 6px;
}

.request-url-window .browser-dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #ff625f;
}

.request-url-window .browser-dots span:nth-child(2) { background: #ffbd2e; }
.request-url-window .browser-dots span:nth-child(3) { background: #28c840; }

.request-url-bar {
    overflow: hidden;
    display: flex;
    align-items: center;
    gap: 8px;
    min-height: 38px;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 0 12px;
    background: var(--surface);
}

.request-url-bar code {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.request-network-scene .request-travel-stage {
    border: 0;
    border-radius: 0;
}

.request-data-bubble {
    position: absolute;
    z-index: 4;
    top: 25px;
    left: calc(50% - 120px);
    width: 240px;
    border: 1px solid rgba(124, 92, 255, 0.48);
    border-radius: 8px;
    padding: 9px 12px;
    background: rgba(11, 16, 36, 0.96);
    color: #eef7ff;
    text-align: center;
    font-size: 0.76rem;
    font-weight: 800;
    animation: m2-result-in 260ms ease both;
}

.request-data-bubble[hidden] { display: none; }

.request-packet {
    width: auto;
    max-width: 120px;
    padding: 8px 11px;
    text-align: center;
}

/* Controller orchestra */
.controller-action-bar {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 9px;
    margin-bottom: 14px;
}

.controller-action-bar button {
    min-height: 46px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface-2);
    color: var(--text);
    cursor: pointer;
}

.controller-action-bar button.is-active {
    border-color: var(--secondary);
    background: rgba(40, 213, 255, 0.11);
    color: var(--secondary);
}

.controller-orchestra-stage {
    position: relative;
    min-height: 440px;
    border: 1px solid rgba(40, 213, 255, 0.18);
    border-radius: 8px;
    background:
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        #0b1024;
    background-size: 32px 32px;
}

.controller-orchestra-stage > svg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.controller-orchestra-stage > svg path {
    fill: none;
    stroke: rgba(40, 213, 255, 0.30);
    stroke-width: 0.45;
    stroke-dasharray: 2 2;
}

.controller-hub,
.controller-destination {
    position: absolute;
    z-index: 2;
    display: grid;
    place-items: center;
    gap: 5px;
    width: 150px;
    min-height: 100px;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 8px;
    padding: 12px;
    background: rgba(17, 22, 41, 0.95);
    color: #eef7ff;
    text-align: center;
    transition: 260ms ease;
}

.controller-hub {
    top: calc(50% - 58px);
    left: calc(50% - 75px);
    min-height: 116px;
    border-color: rgba(124, 92, 255, 0.62);
}

.controller-hub i,
.controller-destination i { color: #28d5ff; font-size: 1.35rem; }
.controller-hub span { color: #aab3c5; font-size: 0.74rem; }
.destination-mysql { top: 30px; left: 7%; }
.destination-api { top: 30px; right: 7%; }
.destination-json { bottom: 30px; left: 7%; }
.destination-response { right: 7%; bottom: 30px; }

.controller-hub.is-active,
.controller-destination.is-active {
    border-color: #28d5ff;
    background: rgba(40, 213, 255, 0.15);
    box-shadow: 0 0 28px rgba(40, 213, 255, 0.28);
    transform: scale(1.04);
}

.controller-destination.is-visited {
    border-color: rgba(67, 217, 139, 0.42);
}

.controller-action-packet {
    position: absolute;
    z-index: 4;
    top: calc(50% - 20px);
    left: calc(50% - 20px);
    display: grid;
    width: 40px;
    height: 40px;
    place-items: center;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #fff;
    box-shadow: 0 0 24px rgba(40, 213, 255, 0.42);
    transition: top 620ms ease, left 620ms ease;
}

.controller-action-packet[hidden] { display: none; }
.controller-action-packet[data-target="hub"] { top: calc(50% - 20px); left: calc(50% - 20px); }
.controller-action-packet[data-target="mysql"] { top: 58px; left: calc(7% + 55px); }
.controller-action-packet[data-target="api"] { top: 58px; left: calc(93% - 95px); }
.controller-action-packet[data-target="json"] { top: calc(100% - 98px); left: calc(7% + 55px); }
.controller-action-packet[data-target="response"] { top: calc(100% - 98px); left: calc(93% - 95px); }

.controller-speech {
    position: absolute;
    z-index: 5;
    top: calc(50% + 70px);
    left: calc(50% - 150px);
    width: 300px;
    border: 1px solid rgba(124, 92, 255, 0.48);
    border-radius: 8px;
    padding: 9px 12px;
    background: rgba(11, 16, 36, 0.96);
    color: #eef7ff;
    text-align: center;
    font-size: 0.78rem;
}

.controller-key-message {
    margin: 14px 0 0;
    padding: 13px;
    border-left: 3px solid var(--secondary);
    background: rgba(40, 213, 255, 0.07);
}

/* Codex response workshop */
.codex-workshop-grid {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 16px;
}

.fake-codex-response,
.codex-quiz-list > article {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: color-mix(in srgb, var(--surface-2) 88%, transparent);
}

.fake-codex-response {
    overflow: hidden;
}

.fake-codex-header {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 14px;
    border-bottom: 1px solid var(--line);
    background: rgba(124, 92, 255, 0.10);
}

.fake-codex-header i { color: var(--secondary); }
.fake-codex-header span { margin-left: auto; color: var(--muted); font-size: 0.76rem; }
.fake-codex-response section { padding: 15px; }
.fake-codex-response section + section { border-top: 1px solid var(--line); }
.fake-codex-response h3 { margin-bottom: 8px; font-size: 0.95rem; }
.fake-codex-response ul { margin: 0; padding-left: 20px; }
.fake-codex-response pre { overflow-x: auto; margin: 0; padding: 12px; border-radius: 8px; background: #070b18; color: #c8f4ff; }

.codex-quiz-list {
    display: grid;
    gap: 12px;
}

.codex-quiz-list > article { padding: 15px; }
.codex-quiz-list h3 { margin-bottom: 10px; font-size: 0.94rem; }
.codex-quiz-list article > div { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.codex-quiz-list button { min-height: 42px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); color: var(--text); cursor: pointer; }
.codex-quiz-list button.is-wrong { border-color: var(--danger); background: rgba(255, 107, 145, 0.10); }
.codex-quiz-list button.is-correct { border-color: var(--success); background: rgba(67, 217, 139, 0.12); color: var(--success); }
.codex-quiz-list [data-codex-feedback] { margin: 9px 0 0; font-size: 0.78rem; }
.codex-quiz-list .is-error { color: var(--danger); }
.codex-quiz-list .is-success { color: var(--success); }

/* Project lifecycle */
.project-lifecycle-flow {
    display: grid;
    grid-template-columns: repeat(13, minmax(0, auto));
    align-items: center;
    justify-content: center;
    gap: 8px;
    overflow-x: auto;
    padding: 18px 4px;
}

.project-lifecycle-flow button {
    display: grid;
    min-width: 104px;
    min-height: 98px;
    place-items: center;
    gap: 6px;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 10px;
    background: var(--surface-2);
    color: var(--text);
    cursor: pointer;
    transition: 180ms ease;
}

.project-lifecycle-flow button i { color: var(--secondary); font-size: 1.25rem; }
.project-lifecycle-flow button.is-active { border-color: var(--secondary); background: rgba(40, 213, 255, 0.12); box-shadow: 0 0 22px rgba(40, 213, 255, 0.18); transform: translateY(-3px); }
.project-lifecycle-flow button.is-visited { border-color: rgba(67, 217, 139, 0.42); }
.project-lifecycle-flow > i { color: rgba(40, 213, 255, 0.58); }

.lifecycle-detail {
    display: grid;
    grid-template-columns: 100px minmax(0, 1fr);
    gap: 18px;
    margin-top: 14px;
    padding: 20px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: color-mix(in srgb, var(--surface-2) 88%, transparent);
}

.lifecycle-detail > div:first-child {
    display: grid;
    width: 100px;
    height: 100px;
    place-items: center;
    border-radius: 8px;
    background: rgba(40, 213, 255, 0.10);
    color: var(--secondary);
    font-size: 2rem;
}

.lifecycle-detail h3 { margin-bottom: 5px; }
.lifecycle-detail pre { overflow-x: auto; margin-bottom: 0; padding: 11px; border-radius: 8px; background: #070b18; color: #c8f4ff; }

[data-theme="light"] .m2-flow-bubble,
[data-theme="light"] .request-data-bubble,
[data-theme="light"] .controller-speech,
[data-theme="light"] .html-tag-tooltip {
    background: rgba(255, 255, 255, 0.98);
    color: #121827;
}

[data-theme="light"] .controller-orchestra-stage { background-color: #eef5ff; }
[data-theme="light"] .controller-hub,
[data-theme="light"] .controller-destination { background: rgba(255, 255, 255, 0.96); color: #121827; }
[data-theme="light"] .request-url-window { background: #e9eef7; }

@media (max-width: 1080px) {
    .m2-flow-stage { grid-template-columns: repeat(5, minmax(0, 1fr)); justify-items: stretch; }
    .m2-flow-node { width: auto; }
    .codex-workshop-grid { grid-template-columns: 1fr; }
}

@media (max-width: 820px) {
    .m2-action-composer,
    .controller-action-bar { grid-template-columns: 1fr; }

    .m2-flow-stage {
        grid-template-columns: 1fr;
        gap: 9px;
        padding: 20px;
    }

    .m2-flow-lines,
    .m2-task-packet,
    .m2-flow-bubble { display: none !important; }
    .m2-flow-node { min-height: 76px; }
    .project-lifecycle-flow { grid-template-columns: 1fr; overflow: visible; }
    .project-lifecycle-flow > i { justify-self: center; transform: rotate(90deg); }
    .project-lifecycle-flow button { width: 100%; min-height: 70px; }
}

@media (max-width: 600px) {
    .controller-orchestra-stage { min-height: 560px; }
    .controller-hub { top: calc(50% - 58px); }
    .destination-mysql { top: 20px; left: 15px; }
    .destination-api { top: 20px; right: 15px; }
    .destination-json { bottom: 20px; left: 15px; }
    .destination-response { right: 15px; bottom: 20px; }
    .controller-hub,
    .controller-destination { width: 118px; }
    .controller-hub { left: calc(50% - 59px); }
    .controller-action-packet[data-target="mysql"] { top: 48px; left: 54px; }
    .controller-action-packet[data-target="api"] { top: 48px; left: calc(100% - 94px); }
    .controller-action-packet[data-target="json"] { top: calc(100% - 88px); left: 54px; }
    .controller-action-packet[data-target="response"] { top: calc(100% - 88px); left: calc(100% - 94px); }
    .controller-speech { top: calc(50% + 70px); left: 10%; width: 80%; }
    .codex-quiz-list article > div,
    .lifecycle-detail { grid-template-columns: 1fr; }
}

/* TaskFlow narrative thread */
.taskflow-thread-card {
    display: grid;
    grid-template-columns: 84px minmax(0, 1fr);
    gap: 20px;
    margin-bottom: 18px;
    padding: 22px;
    border: 1px solid rgba(40, 213, 255, 0.24);
    border-radius: 8px;
    background:
        radial-gradient(circle at 90% 12%, rgba(40, 213, 255, 0.12), transparent 28%),
        color-mix(in srgb, var(--surface) 91%, transparent);
    box-shadow: var(--shadow);
}

.taskflow-thread-icon {
    display: grid;
    width: 84px;
    height: 84px;
    place-items: center;
    border: 1px solid rgba(124, 92, 255, 0.42);
    border-radius: 8px;
    background: rgba(124, 92, 255, 0.12);
    color: var(--secondary);
    font-size: 2rem;
}

.taskflow-thread-card h2,
.taskflow-thread-card p {
    margin-bottom: 8px;
}

.taskflow-thread-topics {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    margin: 14px 0;
}

.taskflow-thread-topics span {
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 6px 9px;
    background: var(--surface-2);
    font-size: 0.76rem;
    font-weight: 800;
}

.taskflow-thread-key {
    padding: 12px 14px;
    border-left: 3px solid var(--secondary);
    background: rgba(40, 213, 255, 0.07);
    font-weight: 800;
}

/* Manual WebApp anatomy */
.m2-action-composer > span {
    align-self: center;
    max-width: 280px;
    color: var(--muted);
    font-size: 0.8rem;
}

.m2-action-composer > span i {
    margin-right: 6px;
    color: var(--secondary);
}

.m2-flow-stage {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 12px;
    min-width: 0;
    padding-inline: 18px;
}

.m2-flow-lines {
    inset-inline: 3%;
    width: 94%;
}

.m2-task-packet,
.m2-flow-bubble {
    max-width: calc(100% - 32px);
}

.m2-flow-bubble {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.m2-flow-terminal {
    overflow: auto;
    max-height: 210px;
    white-space: pre-wrap;
}

.m2-flow-controls {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    margin-top: 16px;
}

.m2-flow-controls button {
    width: 100%;
}

/* Live HTML/CSS laboratory */
.html-why-card {
    display: grid;
    grid-template-columns: 68px minmax(0, 1fr);
    gap: 16px;
    margin-bottom: 16px;
    padding: 18px;
    border: 1px solid rgba(124, 92, 255, 0.30);
    border-radius: 8px;
    background: rgba(124, 92, 255, 0.08);
}

.html-why-card > div:first-child {
    display: grid;
    width: 68px;
    height: 68px;
    place-items: center;
    border-radius: 8px;
    background: rgba(40, 213, 255, 0.10);
    color: var(--secondary);
    font-size: 1.5rem;
}

.html-why-card h3,
.html-why-card p {
    margin-bottom: 7px;
}

.html-why-card ul {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
    margin: 12px 0 0;
    padding: 0;
    list-style: none;
}

.html-why-card li {
    padding: 8px 10px;
    border: 1px solid var(--line);
    border-radius: 8px;
    font-size: 0.78rem;
}

.html-tag-palette {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    margin-bottom: 16px;
}

.html-tag-palette button {
    min-height: 34px;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 5px 9px;
    background: var(--surface-2);
    color: var(--text);
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    cursor: pointer;
}

.html-tag-palette button.is-active {
    border-color: var(--secondary);
    background: rgba(40, 213, 255, 0.12);
    color: var(--secondary);
}

.live-code-panel {
    display: flex;
    min-height: 640px;
    flex-direction: column;
}

.live-code-panel .code-window-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.live-code-panel .code-window-title small {
    color: var(--success);
    font-size: 0.72rem;
}

.live-code-editor {
    flex: 1;
    min-height: 460px;
    border: 0 !important;
    border-radius: 0 !important;
    padding: 18px !important;
    resize: vertical;
    background: #070b18 !important;
    color: #d8e7ff !important;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace !important;
    font-size: 0.82rem !important;
    line-height: 1.65;
    tab-size: 2;
}

.live-code-panel > .ghost-button {
    width: calc(100% - 32px);
    margin: 0 16px 16px;
}

.taskflow-live-preview {
    min-height: 640px;
}

.taskflow-live-preview .taskflow-demo {
    display: grid;
    gap: 12px;
}

.taskflow-live-preview form {
    display: grid;
    gap: 12px;
}

.taskflow-live-preview form > label {
    display: grid;
    gap: 6px;
}

.taskflow-live-preview input,
.taskflow-live-preview textarea,
.taskflow-live-preview select {
    min-height: 44px;
    border: 2px solid #b8c4d9;
    background: #fff;
    color: #121827;
}

.taskflow-live-preview textarea {
    min-height: 88px;
}

.taskflow-live-preview .choices {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.taskflow-live-preview .choices label {
    display: flex;
    align-items: center;
    gap: 6px;
}

.taskflow-live-preview .choices input {
    width: auto;
    min-height: auto;
}

.taskflow-live-preview .task-card {
    padding: 14px;
    border-radius: 8px;
    background: #eaf1ff;
    color: #121827;
}

.taskflow-live-preview [data-html-tag] {
    transition: outline-color 140ms ease, box-shadow 140ms ease;
}

[data-theme="light"] .live-code-editor {
    background: #10182a !important;
    color: #eef8ff !important;
}

/* Functional UI vocabulary */
.ui-vocabulary-grid {
    grid-template-columns: minmax(0, 1fr) 240px;
    align-items: start;
}

.ui-demo-shell {
    width: 100%;
    height: 680px;
    min-height: 0;
    max-height: 680px;
    grid-template-rows: 48px minmax(0, 1fr) 38px;
}

.ui-demo-shell main {
    min-width: 0;
    min-height: 0;
    max-height: none;
    grid-auto-rows: max-content;
    overscroll-behavior: contain;
    scrollbar-color: var(--secondary) var(--surface);
    scrollbar-width: thin;
}

.ui-term-sidebar {
    overflow: hidden;
    display: grid;
    grid-template-rows: auto minmax(0, 1fr);
    height: 680px;
    max-height: 680px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: color-mix(in srgb, var(--surface-2) 88%, transparent);
}

.ui-term-sidebar-heading {
    padding: 18px;
    border-bottom: 1px solid var(--line);
}

.ui-term-sidebar-heading h3,
.ui-term-sidebar-heading p {
    margin-bottom: 5px;
}

.ui-term-sidebar-heading > p:last-child {
    color: var(--muted);
    font-size: 0.78rem;
}

.ui-term-list {
    overflow-y: auto;
    display: grid;
    grid-template-columns: 1fr;
    align-content: start;
    gap: 8px;
    min-height: 0;
    margin: 0;
    padding: 14px;
    overscroll-behavior: contain;
    scrollbar-color: var(--secondary) var(--surface);
    scrollbar-width: thin;
}

.ui-term-list button {
    width: 100%;
    min-width: 0;
    min-height: 36px;
    text-align: left;
}

.ui-definition-panel {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr) minmax(0, 1fr);
    gap: 18px;
    width: 100%;
}

.ui-definition-copy,
.ui-prompt-example,
.ui-debug-example {
    min-width: 0;
}

.ui-definition-copy h3,
.ui-definition-copy p {
    margin-bottom: 7px;
}

.ui-prompt-example,
.ui-debug-example {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin: 0;
    padding: 14px;
    border-left: 3px solid var(--secondary);
    border-radius: 6px;
    background: rgba(40, 213, 255, 0.07);
}

.ui-debug-example {
    border-left-color: var(--warning);
    background: color-mix(in srgb, var(--warning) 9%, transparent);
}

.ui-prompt-example > div,
.ui-debug-example > div {
    display: grid;
    gap: 5px;
}

.ui-prompt-example span,
.ui-debug-example span {
    color: var(--muted);
    font-size: 0.8rem;
    line-height: 1.5;
}

.ui-demo-hero h3,
.ui-demo-hero p {
    margin-bottom: 5px;
}

.ui-dashboard-demo {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 8px;
}

.ui-dashboard-demo > div {
    display: grid;
    gap: 2px;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 10px;
    background: var(--surface);
}

.ui-dashboard-demo strong {
    color: var(--secondary);
    font-size: 1.35rem;
}

.ui-dashboard-demo span {
    color: var(--muted);
    font-size: 0.7rem;
}

.ui-dashboard-demo p {
    grid-column: 1 / -1;
    margin: 3px 0 0;
    color: var(--muted);
    font-size: 0.75rem;
}

.ui-search-demo,
.ui-dropdown-demo,
.ui-toggle-demo {
    display: flex;
    align-items: center;
    gap: 7px;
    min-width: 0;
}

.ui-search-demo input {
    width: 100%;
    min-width: 0;
}

.ui-dropdown-demo {
    display: grid;
    gap: 3px;
}

.ui-dropdown-demo > span {
    color: var(--muted);
    font-size: 0.68rem;
}

.ui-toggle-demo {
    position: relative;
    justify-content: space-between;
    cursor: pointer;
}

.ui-toggle-demo input {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
}

.ui-toggle-demo i {
    position: relative;
    width: 42px;
    height: 24px;
    flex: 0 0 auto;
    border-radius: 999px;
    background: #596273;
    transition: 160ms ease;
}

.ui-toggle-demo i::after {
    content: "";
    position: absolute;
    top: 3px;
    left: 3px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #fff;
    transition: 160ms ease;
}

.ui-toggle-demo input:checked + i {
    background: var(--success);
}

.ui-toggle-demo input:checked + i::after {
    transform: translateX(18px);
}

.ui-filter-demo {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
}

.ui-filter-demo button,
.ui-tabs-demo nav button {
    min-height: 36px;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 6px 10px;
    background: var(--surface);
    color: var(--text);
    cursor: pointer;
}

.ui-filter-demo button.is-active,
.ui-tabs-demo nav button.is-active {
    border-color: var(--secondary);
    background: rgba(40, 213, 255, 0.12);
    color: var(--secondary);
}

.ui-tabs-demo nav {
    display: flex;
    gap: 7px;
    margin-bottom: 9px;
}

.ui-tabs-demo > div {
    min-height: 52px;
    padding: 10px;
    border-radius: 8px;
    background: var(--surface);
}

.ui-badge-demo {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.ui-badge-demo span {
    border-radius: 999px;
    padding: 5px 9px;
    font-size: 0.72rem;
    font-weight: 900;
}

.ui-badge-demo .urgent { background: rgba(255, 107, 145, 0.15); color: var(--danger); }
.ui-badge-demo .new { background: rgba(40, 213, 255, 0.14); color: var(--secondary); }
.ui-badge-demo .done { background: rgba(67, 217, 139, 0.15); color: var(--success); }

.ui-task-list {
    display: grid;
    gap: 8px;
    border: 0 !important;
    padding: 0 !important;
}

.ui-task-list article {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 11px;
    background: var(--surface);
}

.ui-task-list article span {
    color: var(--muted);
    font-size: 0.72rem;
}

.ui-task-list article[hidden] {
    display: none;
}

.ui-accordion-demo button {
    display: flex;
    width: 100%;
    align-items: center;
    justify-content: space-between;
    border: 0;
    padding: 0;
    background: transparent;
    color: var(--text);
    cursor: pointer;
}

.ui-accordion-demo button i {
    transition: transform 160ms ease;
}

.ui-accordion-demo.is-open button i {
    transform: rotate(180deg);
}

.ui-accordion-demo p {
    margin: 10px 0 0;
    padding-top: 10px;
    border-top: 1px solid var(--line);
    color: var(--muted);
}

.ui-slider-demo {
    display: grid;
    gap: 8px;
}

.ui-slider-demo input {
    padding: 0;
    accent-color: var(--secondary);
}

.ui-tooltip-trigger,
.ui-modal-launch {
    width: 100%;
}

.ui-table-wrap {
    display: block;
    width: 100%;
    min-width: 0;
    min-height: 174px;
    overflow-x: auto;
    overflow-y: visible;
    overscroll-behavior-x: contain;
}

.ui-table-wrap table {
    width: 100%;
    min-width: 440px;
    border-collapse: collapse;
    font-size: 0.76rem;
}

.ui-table-wrap th,
.ui-table-wrap td {
    border: 1px solid var(--line);
    padding: 8px;
    height: 36px;
    text-align: left;
    vertical-align: middle;
}

.ui-table-wrap th {
    background: rgba(40, 213, 255, 0.08);
}

.ui-scroll-demo {
    overflow-y: scroll;
    display: grid;
    gap: 7px;
    min-height: 170px;
    max-height: 170px;
    scrollbar-color: var(--secondary) var(--surface);
    scrollbar-width: auto;
}

.ui-scroll-demo small {
    position: sticky;
    top: -10px;
    z-index: 1;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 5px 0;
    background: var(--surface-2);
    color: var(--secondary);
    font-weight: 800;
}

.ui-scroll-demo span {
    display: block;
    border-bottom: 1px solid var(--line);
    padding: 6px;
}

.ui-modal-overlay {
    position: absolute;
    z-index: 30;
    inset: 0;
    display: grid;
    place-items: center;
    padding: 20px;
    background: rgba(3, 6, 16, 0.72);
    opacity: 0;
    transition: opacity 180ms ease;
}

.ui-modal-overlay[hidden] {
    display: none;
}

.ui-modal-overlay.is-visible {
    opacity: 1;
}

.ui-real-modal {
    position: relative;
    display: grid;
    width: min(420px, 100%);
    gap: 12px;
    border: 1px solid rgba(40, 213, 255, 0.35);
    border-radius: 8px;
    padding: 22px;
    background: var(--surface);
    box-shadow: 0 28px 80px rgba(0, 0, 0, 0.48);
    transform: translateY(10px);
    transition: transform 180ms ease;
}

.ui-modal-overlay.is-visible .ui-real-modal {
    transform: translateY(0);
}

.ui-modal-close:first-child {
    position: absolute;
    top: 10px;
    right: 10px;
    display: grid;
    width: 36px;
    height: 36px;
    place-items: center;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface-2);
    color: var(--text);
}

.ui-real-modal label {
    display: grid;
    gap: 6px;
}

.ui-floating-tooltip {
    position: absolute;
    z-index: 40;
    max-width: 250px;
    border: 1px solid rgba(40, 213, 255, 0.42);
    border-radius: 8px;
    padding: 9px 11px;
    background: rgba(7, 11, 24, 0.97);
    color: #f4f7fb;
    font-size: 0.76rem;
    box-shadow: 0 14px 34px rgba(0, 0, 0, 0.34);
}

.ui-floating-tooltip[hidden] {
    display: none;
}

[data-theme="light"] .ui-floating-tooltip {
    background: rgba(255, 255, 255, 0.98);
    color: #121827;
}

/* Module 2 extended learning panels */
.section-intro-copy {
    max-width: 920px;
    margin: 0 0 18px;
    color: var(--muted);
    line-height: 1.7;
}

.request-theory-grid,
.json-theory-grid,
.copilot-purpose-grid,
.iteration-roadmap {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    margin-bottom: 14px;
}

.request-theory-grid article,
.json-theory-grid article,
.copilot-purpose-grid article,
.iteration-roadmap article {
    min-width: 0;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 18px;
    background: color-mix(in srgb, var(--surface-2) 86%, transparent);
}

.request-theory-grid h3,
.request-theory-grid p,
.json-theory-grid p {
    margin-bottom: 8px;
}

.concept-label {
    display: inline-flex;
    margin-bottom: 10px;
    border-radius: 6px;
    padding: 5px 9px;
    font-weight: 900;
}

.concept-label.get { background: rgba(40, 213, 255, 0.13); color: var(--secondary); }
.concept-label.post { background: rgba(124, 92, 255, 0.16); color: #bcb1ff; }

.concept-key-line {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 0 0 18px;
    border-left: 3px solid var(--secondary);
    padding: 12px 14px;
    background: rgba(40, 213, 255, 0.07);
}

.concept-theory-panel {
    margin-bottom: 18px;
    border: 1px solid rgba(40, 213, 255, 0.22);
    border-radius: 8px;
    padding: 20px;
    background: color-mix(in srgb, var(--surface-2) 82%, transparent);
}

.concept-theory-panel > p {
    margin-bottom: 14px;
    color: var(--muted);
    line-height: 1.65;
}

.concept-theory-heading {
    display: grid;
    grid-template-columns: 56px minmax(0, 1fr);
    align-items: start;
    gap: 14px;
    margin-bottom: 14px;
}

.concept-theory-heading > i {
    display: grid;
    width: 56px;
    height: 56px;
    place-items: center;
    border-radius: 8px;
    background: rgba(40, 213, 255, 0.10);
    color: var(--secondary);
    font-size: 1.45rem;
}

.concept-theory-heading h3,
.concept-theory-heading p { margin-bottom: 6px; }
.json-theory-grid { margin: 16px 0; }
.json-theory-grid pre { overflow-x: auto; margin: 10px 0 0; padding: 12px; border-radius: 6px; background: #070b18; color: #c8f4ff; }

.json-warning {
    display: flex;
    align-items: center;
    gap: 9px;
    margin: 0 !important;
    color: var(--warning) !important;
    font-weight: 800;
}

.api-example-strip {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    margin: 14px 0;
}

.api-example-strip span {
    display: flex;
    align-items: center;
    gap: 8px;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 11px;
    background: var(--surface);
}

.api-example-strip i { color: var(--secondary); }

.phpmyadmin-shell aside button {
    display: grid;
    grid-template-columns: auto 1fr;
    align-items: center;
    gap: 3px 8px;
    border: 1px solid transparent;
    border-radius: 8px;
}

.phpmyadmin-shell aside button small {
    grid-column: 2;
    color: var(--muted);
    font-size: 0.68rem;
}

.phpmyadmin-shell aside button.is-active {
    border-color: var(--secondary);
    background: rgba(40, 213, 255, 0.10);
    color: var(--secondary);
}

.db-workspace-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
}

.db-workspace-heading h3,
.db-workspace-heading p { margin-bottom: 3px; }
.db-workspace-heading > span { border-radius: 999px; padding: 6px 10px; background: rgba(40, 213, 255, 0.10); color: var(--secondary); font-size: 0.76rem; font-weight: 900; }
.db-action-bar button.is-primary { border-color: var(--secondary); background: rgba(40, 213, 255, 0.12); color: var(--secondary); }
.db-table-wrap table { min-width: 620px; }
.db-table-wrap tbody tr:nth-child(even) { background: rgba(40, 213, 255, 0.035); }

.relation-table .relation-header {
    background: color-mix(in srgb, var(--surface-2) 90%, transparent);
    color: var(--secondary);
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 0.72rem;
    font-weight: 900;
}

.controller-theory-panel { margin-bottom: 16px; }
.controller-step-controls { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin-top: 14px; }

.library-grid button.is-secondary { opacity: 0.82; }
.library-caution { margin-top: 14px; border: 1px solid rgba(255, 191, 71, 0.28); border-radius: 8px; padding: 14px; background: rgba(255, 191, 71, 0.07); }
.library-caution > strong { display: flex; align-items: center; gap: 8px; color: var(--warning); }
.title-with-icon { display: flex; align-items: center; gap: 10px; }
.title-with-icon i { color: var(--secondary); }

.copilot-purpose-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.copilot-purpose-grid article { display: grid; gap: 7px; }
.copilot-purpose-grid i { color: var(--secondary); font-size: 1.35rem; }
.copilot-purpose-grid span { color: var(--muted); font-size: 0.84rem; }
.copilot-prompt-panel { border: 1px solid var(--line); border-radius: 8px; padding: 20px; background: color-mix(in srgb, var(--surface-2) 86%, transparent); }
.copilot-prompt-panel h3,
.copilot-prompt-panel p { margin-bottom: 6px; }
.copilot-prompt-panel .prompt-box { max-height: 520px; overflow: auto; }

.iteration-loop-card {
    display: grid;
    grid-template-columns: 76px minmax(0, 1fr);
    gap: 16px;
    margin-bottom: 16px;
    border: 1px solid rgba(40, 213, 255, 0.22);
    border-radius: 8px;
    padding: 18px;
    background: rgba(40, 213, 255, 0.06);
}

.iteration-loop-card > div:first-child { display: grid; width: 76px; height: 76px; place-items: center; border-radius: 8px; background: rgba(124, 92, 255, 0.14); color: #bcb1ff; font-size: 1.8rem; }
.iteration-loop-card h3,
.iteration-loop-card p { margin-bottom: 6px; }
.iteration-foundations { display: flex; flex-wrap: wrap; gap: 7px; margin: 10px 0 14px; padding: 0; list-style: none; }
.iteration-foundations li { border: 1px solid var(--line); border-radius: 999px; padding: 5px 9px; background: var(--surface); color: var(--secondary); font-size: 0.74rem; font-weight: 900; }
.iteration-roadmap { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.iteration-roadmap article { position: relative; }
.iteration-roadmap article > span { display: grid; width: 30px; height: 30px; margin-bottom: 10px; place-items: center; border-radius: 50%; background: var(--secondary); color: #07101d; font-weight: 900; }
.iteration-roadmap p { margin: 6px 0 0; color: var(--muted); font-size: 0.8rem; }

/* API response comparison */
.api-comparison-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    margin-top: 16px;
}

.api-comparison-grid article {
    min-width: 0;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 16px;
    background: color-mix(in srgb, var(--surface-2) 88%, transparent);
}

.api-comparison-grid article > span {
    display: flex;
    align-items: center;
    gap: 7px;
    margin-bottom: 10px;
    color: var(--muted);
    font-size: 0.74rem;
    font-weight: 900;
    text-transform: uppercase;
}

.api-comparison-grid article > strong { display: block; margin-bottom: 10px; overflow-wrap: anywhere; }
.api-comparison-grid pre { overflow: auto; margin: 0; border-radius: 6px; padding: 12px; background: #070b18; color: #c8f4ff; white-space: pre-wrap; overflow-wrap: anywhere; }
.api-response-card.is-success { border-color: rgba(67, 217, 139, 0.38); }
.api-response-card.is-success > span { color: var(--success); }
.api-response-card.is-error { border-color: rgba(255, 107, 145, 0.38); }
.api-response-card.is-error > span { color: var(--danger); }
.api-live-result > div { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
.api-live-result .api-status-code { flex: 0 0 auto; }

/* Simulated library comparisons */
.library-selected-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 18px; margin: 18px 0 12px; }
.library-selected-heading h3,
.library-selected-heading p { margin-bottom: 4px; }
.library-selected-heading > p { max-width: 520px; color: var(--muted); text-align: right; }
.library-before-after { display: grid; grid-template-columns: minmax(0, 1fr) 42px minmax(0, 1fr); align-items: stretch; gap: 12px; }
.library-state { min-width: 0; border: 1px solid var(--line); border-radius: 8px; padding: 16px; background: color-mix(in srgb, var(--surface-2) 86%, transparent); }
.library-state > span { display: block; margin-bottom: 12px; color: var(--muted); font-size: 0.74rem; font-weight: 900; text-transform: uppercase; }
.library-state.with { border-color: rgba(40, 213, 255, 0.35); }
.library-state.with > span { color: var(--secondary); }
.library-state > div { min-height: 230px; }
.library-transform-arrow { display: grid; place-items: center; color: var(--secondary); }
.raw-metrics { display: grid; gap: 12px; margin: 0; padding: 18px; list-style: none; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.raw-metrics li { border-bottom: 1px solid var(--line); padding-bottom: 10px; }
.sim-chart { display: flex; height: 230px; align-items: flex-end; justify-content: space-around; gap: 18px; padding: 28px 24px 20px; border-radius: 7px; background: #0a1020; }
.sim-chart i { width: 20%; border-radius: 5px 5px 0 0; background: linear-gradient(180deg, var(--secondary), var(--primary)); box-shadow: 0 0 20px rgba(40, 213, 255, 0.18); }
.sim-unavailable { display: grid; place-items: center; align-content: center; gap: 12px; color: var(--muted); text-align: center; }
.sim-unavailable i { color: var(--danger); font-size: 2rem; }
.sim-pdf { display: grid; grid-template-columns: auto minmax(130px, 180px); align-items: center; justify-content: center; gap: 18px; }
.sim-pdf button { border: 0; border-radius: 8px; padding: 11px 13px; background: var(--secondary); color: #07101d; font-weight: 900; }
.sim-pdf > div { display: grid; gap: 8px; min-height: 210px; border-radius: 4px; padding: 18px; background: #fff; color: #121827; box-shadow: 0 18px 35px rgba(0,0,0,.24); }
.sim-pdf > div i { display: block; height: 7px; border-radius: 4px; background: #dbe4f1; }
.sim-basic-calendar { display: grid; gap: 7px; padding: 12px; }
.sim-basic-calendar strong { margin-top: 7px; }
.sim-basic-calendar span { border-left: 2px solid #777; padding-left: 8px; color: var(--muted); }
.sim-modern-calendar { overflow: hidden; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); }
.sim-modern-calendar header { display: flex; align-items: center; justify-content: space-between; padding: 11px; background: rgba(40,213,255,.08); }
.sim-modern-calendar button { border: 0; background: transparent; color: var(--text); }
.sim-modern-calendar .days { display: grid; grid-template-columns: repeat(5,1fr); padding: 9px; color: var(--muted); font-size: .68rem; text-align: center; }
.sim-modern-calendar .events { display: grid; grid-template-columns: repeat(5,1fr); gap: 7px; min-height: 140px; padding: 10px; background-image: linear-gradient(90deg,var(--line) 1px,transparent 1px); background-size: 20% 100%; }
.sim-modern-calendar .events i { align-self: start; border-radius: 5px; padding: 7px; background: rgba(124,92,255,.2); color: #dcd6ff; font-style: normal; font-size: .7rem; }
.sim-plain-table,
.sim-data-table table { width: 100%; border-collapse: collapse; }
.sim-plain-table th,
.sim-plain-table td,
.sim-data-table th,
.sim-data-table td { border: 1px solid var(--line); padding: 8px; text-align: left; }
.sim-data-table { display: grid; gap: 10px; }
.sim-data-table > div { display: flex; gap: 8px; }
.sim-data-table label { min-width: 0; font-size: .72rem; }
.sim-data-table input { min-height: 34px; padding: 6px 8px; }
.sim-data-table button { border: 1px solid var(--line); border-radius: 6px; background: var(--surface); color: var(--text); }
.sim-data-table footer { display: flex; align-items: center; justify-content: flex-end; gap: 6px; }
.sim-data-table footer span { margin-right: auto; color: var(--muted); font-size: .7rem; }
.sim-data-table footer button { min-width: 28px; min-height: 28px; }
.sim-emoji-icons,
.sim-fa-icons { display: flex; min-height: 230px; align-items: center; justify-content: center; flex-wrap: wrap; gap: 22px; font-size: 2.2rem; }
.sim-fa-icons i { display: grid; width: 58px; height: 58px; place-items: center; border: 1px solid rgba(40,213,255,.35); border-radius: 8px; background: rgba(40,213,255,.08); color: var(--secondary); }
.library-trust { display: flex; align-items: flex-start; gap: 12px; margin-top: 14px; border: 1px solid var(--line); border-radius: 8px; padding: 14px; background: var(--surface-2); }
.library-trust > i { color: var(--success); font-size: 1.3rem; }
.library-trust strong,
.library-trust p { display: block; margin-bottom: 4px; }

/* Interactive project lifecycle flowchart */
.project-lifecycle-lab .lab-header > div { max-width: 780px; }
.project-lifecycle-lab .lab-header p:last-child { margin: 5px 0 0; color: var(--muted); }

.lifecycle-flow-viewport {
    overflow-x: auto;
    margin-top: 18px;
    border: 1px solid rgba(40, 213, 255, 0.24);
    border-radius: 8px;
    background: #090d20;
    scrollbar-color: rgba(40, 213, 255, 0.5) rgba(255, 255, 255, 0.06);
    scrollbar-width: thin;
    overscroll-behavior-inline: contain;
}

.lifecycle-flow-viewport:focus-visible {
    outline: 2px solid var(--secondary);
    outline-offset: 3px;
}

.lifecycle-flow-viewport::-webkit-scrollbar { height: 10px; }
.lifecycle-flow-viewport::-webkit-scrollbar-track { background: rgba(255, 255, 255, 0.05); }
.lifecycle-flow-viewport::-webkit-scrollbar-thumb { border: 2px solid #090d20; border-radius: 999px; background: rgba(40, 213, 255, 0.48); }

.lifecycle-flowchart {
    position: relative;
    display: grid;
    width: 1046px;
    min-height: 650px;
    grid-template-columns: repeat(4, 190px);
    grid-template-rows: 130px 160px 130px;
    column-gap: 74px;
    row-gap: 70px;
    align-items: center;
    padding: 36px 32px 54px;
    background:
        linear-gradient(rgba(67, 96, 170, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(67, 96, 170, 0.1) 1px, transparent 1px),
        radial-gradient(circle at 50% 48%, rgba(30, 102, 166, 0.14), transparent 46%),
        #090d20;
    background-size: 44px 44px, 44px 44px, auto, auto;
    isolation: isolate;
}

.lifecycle-connectors {
    position: absolute;
    z-index: 1;
    inset: 0;
    width: 100%;
    height: 100%;
    overflow: visible;
    pointer-events: none;
}

.lifecycle-connectors .lifecycle-edge {
    fill: none;
    stroke: rgba(239, 246, 255, 0.74);
    stroke-width: 2.4;
    stroke-linecap: round;
    stroke-linejoin: round;
    vector-effect: non-scaling-stroke;
    transition: stroke 180ms ease, stroke-width 180ms ease, filter 180ms ease, opacity 180ms ease;
}

.lifecycle-connectors .lifecycle-edge.is-related {
    stroke: #28d5ff;
    stroke-width: 3.6;
    filter: drop-shadow(0 0 5px rgba(40, 213, 255, 0.9));
}

.lifecycle-connectors marker path { fill: rgba(239, 246, 255, 0.9); }

.lifecycle-flow-node {
    --node-rgb: 40, 213, 255;
    position: relative;
    z-index: 2;
    display: grid;
    width: 100%;
    min-width: 0;
    min-height: 112px;
    grid-template-columns: 38px minmax(0, 1fr);
    align-items: center;
    gap: 10px;
    border: 1px solid rgba(var(--node-rgb), 0.72);
    border-radius: 8px;
    padding: 14px;
    background: linear-gradient(145deg, rgba(var(--node-rgb), 0.2), rgba(11, 17, 39, 0.96) 72%);
    color: #f8fbff;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08), 0 12px 26px rgba(0, 0, 0, 0.22);
    text-align: left;
    cursor: pointer;
    transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease, filter 180ms ease;
}

.lifecycle-flow-node > i {
    display: grid;
    width: 38px;
    height: 38px;
    place-items: center;
    border: 1px solid rgba(var(--node-rgb), 0.42);
    border-radius: 8px;
    background: rgba(var(--node-rgb), 0.12);
    color: rgb(var(--node-rgb));
    font-size: 1.08rem;
}

.lifecycle-flow-node > span { display: grid; gap: 5px; min-width: 0; }
.lifecycle-flow-node strong { color: inherit; font-size: 0.94rem; line-height: 1.15; }
.lifecycle-flow-node small { color: #b9c5dc; font-size: 0.72rem; line-height: 1.35; }
.lifecycle-flow-node:hover,
.lifecycle-flow-node:focus-visible,
.lifecycle-flow-node.is-selected {
    z-index: 4;
    border-color: rgb(var(--node-rgb));
    box-shadow: 0 0 0 2px rgba(var(--node-rgb), 0.16), 0 0 25px rgba(var(--node-rgb), 0.3);
    filter: brightness(1.08);
    transform: translateY(-4px) scale(1.025);
}
.lifecycle-flow-node:focus-visible { outline: 2px solid #fff; outline-offset: 3px; }

.lifecycle-flow-node.is-decision {
    width: 154px;
    min-height: 154px;
    grid-template-columns: 1fr;
    justify-self: center;
    place-items: center;
    gap: 5px;
    border: 0;
    border-radius: 0;
    padding: 28px;
    background: linear-gradient(145deg, rgba(var(--node-rgb), 0.44), rgba(49, 38, 12, 0.98));
    clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
    filter: drop-shadow(0 10px 18px rgba(0, 0, 0, 0.32));
    text-align: center;
}
.lifecycle-flow-node.is-decision > i { width: 34px; height: 34px; }
.lifecycle-flow-node.is-decision strong { font-size: 0.86rem; }
.lifecycle-flow-node.is-decision:hover,
.lifecycle-flow-node.is-decision:focus-visible,
.lifecycle-flow-node.is-decision.is-selected {
    filter: brightness(1.12) drop-shadow(0 0 15px rgba(var(--node-rgb), 0.52));
}

.node-idea { --node-rgb: 255, 132, 91; grid-area: 1 / 1; }
.node-prompt { --node-rgb: 74, 137, 255; grid-area: 1 / 2; }
.node-codex { --node-rgb: 40, 213, 255; grid-area: 1 / 3; }
.node-test { --node-rgb: 67, 217, 139; grid-area: 1 / 4; }
.node-correction { --node-rgb: 255, 93, 114; grid-area: 2 / 2; }
.node-bug { --node-rgb: 255, 191, 71; grid-area: 2 / 4; }
.node-maintenance { --node-rgb: 161, 111, 255; grid-area: 3 / 1; }
.node-iteration { --node-rgb: 255, 191, 71; grid-area: 3 / 2; }
.node-feedback { --node-rgb: 75, 183, 255; grid-area: 3 / 3; }
.node-publication { --node-rgb: 67, 217, 139; grid-area: 3 / 4; }

.lifecycle-path-badge {
    position: absolute;
    z-index: 5;
    display: grid;
    min-width: 40px;
    min-height: 24px;
    place-items: center;
    border: 1px solid rgba(255, 255, 255, 0.28);
    border-radius: 999px;
    padding: 3px 9px;
    background: #11182e;
    color: #fff;
    box-shadow: 0 5px 14px rgba(0, 0, 0, 0.28);
    font-size: 0.68rem;
    font-weight: 900;
    line-height: 1;
    pointer-events: none;
    transform: translate(-50%, -50%);
}
.badge-bug-yes,
.badge-iteration-yes { border-color: rgba(255, 191, 71, 0.65); color: #ffd780; }
.badge-bug-no,
.badge-iteration-no { border-color: rgba(67, 217, 139, 0.62); color: #84efb7; }

.lifecycle-mobile-hint {
    display: none;
    align-items: center;
    gap: 8px;
    margin-top: 8px;
    color: var(--secondary);
    font-size: 0.75rem;
    font-weight: 800;
}

.lifecycle-selected-panel {
    --selected-rgb: 255, 132, 91;
    display: grid;
    grid-template-columns: 76px minmax(0, 1fr);
    gap: 18px;
    align-items: start;
    margin-top: 18px;
    border: 1px solid rgba(var(--selected-rgb), 0.42);
    border-radius: 8px;
    padding: 18px;
    background: linear-gradient(120deg, rgba(var(--selected-rgb), 0.1), color-mix(in srgb, var(--surface-2) 92%, transparent));
    transition: border-color 180ms ease, background 180ms ease;
}
.project-lifecycle-lab[data-selected-node="prompt"] .lifecycle-selected-panel { --selected-rgb: 74, 137, 255; }
.project-lifecycle-lab[data-selected-node="codex"] .lifecycle-selected-panel { --selected-rgb: 40, 213, 255; }
.project-lifecycle-lab[data-selected-node="test"] .lifecycle-selected-panel,
.project-lifecycle-lab[data-selected-node="publication"] .lifecycle-selected-panel { --selected-rgb: 67, 217, 139; }
.project-lifecycle-lab[data-selected-node="bug"] .lifecycle-selected-panel,
.project-lifecycle-lab[data-selected-node="iteration"] .lifecycle-selected-panel { --selected-rgb: 255, 191, 71; }
.project-lifecycle-lab[data-selected-node="correction"] .lifecycle-selected-panel { --selected-rgb: 255, 93, 114; }
.project-lifecycle-lab[data-selected-node="feedback"] .lifecycle-selected-panel { --selected-rgb: 75, 183, 255; }
.project-lifecycle-lab[data-selected-node="maintenance"] .lifecycle-selected-panel { --selected-rgb: 161, 111, 255; }

.lifecycle-selected-icon {
    display: grid;
    width: 76px;
    height: 76px;
    place-items: center;
    border: 1px solid rgba(var(--selected-rgb), 0.44);
    border-radius: 8px;
    background: rgba(var(--selected-rgb), 0.11);
    color: rgb(var(--selected-rgb));
    font-size: 1.65rem;
}
.lifecycle-selected-panel .eyebrow { margin-bottom: 4px; }
.lifecycle-selected-panel h3 { margin-bottom: 5px; }
.lifecycle-selected-panel > div:last-child > p:not(.eyebrow) { margin: 0; color: var(--muted); }
.lifecycle-codex-phrase { display: flex; align-items: flex-start; gap: 10px; margin-top: 12px; border-left: 3px solid rgb(var(--selected-rgb)); padding: 10px 12px; background: rgba(var(--selected-rgb), 0.07); }
.lifecycle-codex-phrase > i { margin-top: 3px; color: rgb(var(--selected-rgb)); }
.lifecycle-codex-phrase p { display: grid; gap: 3px; margin: 0; }
.lifecycle-codex-phrase span { color: var(--text); font-size: 0.84rem; }

.lifecycle-guidance-grid { display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(260px, 0.75fr); gap: 14px; margin-top: 14px; }
.lifecycle-rules-card,
.lifecycle-tip-card { display: flex; align-items: flex-start; gap: 14px; border: 1px solid var(--line); border-radius: 8px; padding: 17px; background: var(--surface-2); }
.lifecycle-rules-card > i,
.lifecycle-tip-card > i { display: grid; width: 44px; height: 44px; flex: 0 0 auto; place-items: center; border-radius: 8px; background: rgba(40, 213, 255, 0.1); color: var(--secondary); }
.lifecycle-rules-card h3,
.lifecycle-tip-card h3 { margin-bottom: 7px; }
.lifecycle-rules-card .clean-list { display: grid; gap: 5px; margin: 0; }
.lifecycle-rules-card .clean-list li { color: var(--muted); }
.lifecycle-tip-card { border-color: rgba(255, 191, 71, 0.32); background: rgba(255, 191, 71, 0.07); }
.lifecycle-tip-card > i { background: rgba(255, 191, 71, 0.12); color: var(--warning); }
.lifecycle-tip-card p { margin: 0; color: var(--muted); }

.lifecycle-legend { display: flex; align-items: center; flex-wrap: wrap; gap: 9px 14px; margin-top: 14px; border-top: 1px solid var(--line); padding-top: 14px; }
.lifecycle-legend > strong { margin-right: 4px; }
.lifecycle-legend span { display: inline-flex; align-items: center; gap: 6px; color: var(--muted); font-size: 0.72rem; }
.lifecycle-legend span i { display: block; width: 11px; height: 11px; border-radius: 3px; background: rgb(var(--legend-rgb)); box-shadow: 0 0 8px rgba(var(--legend-rgb), 0.34); }
.legend-idea { --legend-rgb: 255, 132, 91; }
.legend-prompt { --legend-rgb: 74, 137, 255; }
.legend-codex { --legend-rgb: 40, 213, 255; }
.legend-test { --legend-rgb: 67, 217, 139; }
.legend-decision { --legend-rgb: 255, 191, 71; transform: rotate(45deg); }
.legend-correction { --legend-rgb: 255, 93, 114; }
.legend-publication { --legend-rgb: 67, 217, 139; }
.legend-feedback { --legend-rgb: 75, 183, 255; }
.legend-maintenance { --legend-rgb: 161, 111, 255; }

[data-theme="light"] .lifecycle-flow-viewport,
[data-theme="light"] .lifecycle-flowchart { background-color: #edf4ff; }
[data-theme="light"] .lifecycle-flowchart {
    background-image:
        linear-gradient(rgba(35, 75, 135, 0.09) 1px, transparent 1px),
        linear-gradient(90deg, rgba(35, 75, 135, 0.09) 1px, transparent 1px),
        radial-gradient(circle at 50% 48%, rgba(37, 149, 207, 0.12), transparent 46%);
}
[data-theme="light"] .lifecycle-flow-node { background: linear-gradient(145deg, rgba(var(--node-rgb), 0.2), rgba(255, 255, 255, 0.98) 74%); color: #10182e; }
[data-theme="light"] .lifecycle-flow-node small { color: #53627d; }
[data-theme="light"] .lifecycle-flow-node.is-decision { background: linear-gradient(145deg, rgba(var(--node-rgb), 0.48), #fff8df); }
[data-theme="light"] .lifecycle-connectors .lifecycle-edge { stroke: rgba(17, 31, 57, 0.67); }
[data-theme="light"] .lifecycle-connectors marker path { fill: rgba(17, 31, 57, 0.82); }
[data-theme="light"] .lifecycle-path-badge { background: #fff; color: #172038; }
[data-theme="light"] .badge-bug-yes,
[data-theme="light"] .badge-iteration-yes { color: #8a5a00; }
[data-theme="light"] .badge-bug-no,
[data-theme="light"] .badge-iteration-no { color: #08713c; }

/* Detailed TaskFlow mission */
.mission-detailed-list { display: grid; gap: 12px; }
.mission-step-card { overflow: hidden; border: 1px solid var(--line); border-radius: 8px; background: color-mix(in srgb,var(--surface-2) 86%,transparent); }
.mission-step-card.is-open { border-color: rgba(40,213,255,.34); }
.mission-step-heading { display: grid; grid-template-columns: minmax(0,1fr) auto; align-items: center; gap: 14px; padding: 14px; }
.mission-step-heading label { display: flex; align-items: flex-start; gap: 12px; min-width: 0; cursor: pointer; }
.mission-step-heading input { width: 20px; height: 20px; flex: 0 0 auto; margin-top: 5px; accent-color: var(--success); }
.mission-step-heading label > span { display: grid; gap: 3px; min-width: 0; }
.mission-step-heading small { color: var(--secondary); font-weight: 900; text-transform: uppercase; }
.mission-step-heading em { color: var(--muted); font-size: .8rem; font-style: normal; }
.mission-step-heading button { min-width: 160px; }
.mission-step-heading button i { margin-left: 6px; transition: transform 160ms ease; }
.mission-step-heading button[aria-expanded="true"] i { transform: rotate(180deg); }
.mission-step-panel { display: grid; gap: 14px; border-top: 1px solid var(--line); padding: 16px; }
.mission-step-panel[hidden] { display: none; }
.mission-step-meta { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 10px; }
.mission-step-meta > span { display: grid; grid-template-columns: auto auto 1fr; align-items: center; gap: 7px; border: 1px solid var(--line); border-radius: 8px; padding: 11px; background: var(--surface); font-size: .8rem; }
.mission-step-meta i { color: var(--secondary); }
.mission-step-meta strong { white-space: nowrap; }
.mission-prompt-block { min-width: 0; }
.mission-prompt-block > div { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 8px; }
.mission-prompt-block .prompt-box { overflow: auto; max-height: 420px; margin: 0; white-space: pre-wrap; overflow-wrap: anywhere; }
.mission-step-test { display: flex; align-items: flex-start; gap: 10px; margin: 0; border-left: 3px solid var(--success); padding: 12px; background: rgba(67,217,139,.07); }
.mission-step-test > i { color: var(--success); }
.mission-step-test span { display: grid; gap: 3px; }
.mission-testing-warning { display: flex; align-items: flex-start; gap: 13px; margin-top: 18px; border: 1px solid rgba(255,191,71,.34); border-radius: 8px; padding: 16px; background: rgba(255,191,71,.08); }
.mission-testing-warning i { color: var(--warning); font-size: 1.35rem; }

@media (max-width: 1080px) {
    .lifecycle-mobile-hint { display: flex; }

    .m2-flow-stage {
        grid-template-columns: repeat(6, minmax(0, 1fr));
    }

    .ui-vocabulary-grid {
        grid-template-columns: 1fr;
    }

    .ui-term-sidebar {
        height: auto;
        max-height: 300px;
    }

    .ui-term-list {
        grid-template-columns: repeat(4, minmax(0, 1fr));
        max-height: 210px;
    }

    .ui-definition-panel {
        grid-template-columns: 1fr 1fr;
    }

    .ui-definition-copy {
        grid-column: 1 / -1;
    }

    .html-why-card ul {
        grid-template-columns: 1fr;
    }

    .iteration-roadmap { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 820px) {
    .lifecycle-guidance-grid { grid-template-columns: 1fr; }

    .taskflow-thread-card,
    .html-why-card {
        grid-template-columns: 1fr;
    }

    .m2-flow-controls {
        grid-template-columns: 1fr;
    }

    .m2-flow-stage {
        grid-template-columns: 1fr;
    }

    .taskflow-live-preview,
    .live-code-panel {
        min-height: 540px;
    }

    .ui-dashboard-demo {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .ui-demo-toolbar {
        grid-template-columns: 1fr 1fr;
    }

    .ui-search-demo {
        grid-column: 1 / -1;
    }

    .ui-term-list {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .request-theory-grid,
    .json-theory-grid,
    .copilot-purpose-grid,
    .iteration-roadmap,
    .controller-step-controls { grid-template-columns: 1fr; }

    .api-example-strip { grid-template-columns: 1fr; }

    .phpmyadmin-shell { grid-template-columns: 1fr; }
    .phpmyadmin-shell aside { grid-template-columns: repeat(2, minmax(0, 1fr)); border-right: 0; border-bottom: 1px solid var(--line); }
    .phpmyadmin-shell aside > strong { grid-column: 1 / -1; }

    .api-comparison-grid,
    .library-before-after { grid-template-columns: 1fr; }
    .library-transform-arrow { min-height: 30px; transform: rotate(90deg); }
    .library-selected-heading { align-items: flex-start; flex-direction: column; }
    .library-selected-heading > p { text-align: left; }
    .mission-step-heading { grid-template-columns: 1fr; }
    .mission-step-heading button { width: 100%; }
}

@media (max-width: 600px) {
    .lifecycle-selected-panel { grid-template-columns: 1fr; }
    .lifecycle-selected-icon { width: 58px; height: 58px; font-size: 1.3rem; }
    .lifecycle-rules-card,
    .lifecycle-tip-card { align-items: flex-start; flex-direction: column; }

    .taskflow-thread-icon,
    .html-why-card > div:first-child {
        width: 58px;
        height: 58px;
    }

    .ui-dashboard-demo,
    .ui-tabs-demo nav {
        grid-template-columns: 1fr;
    }

    .ui-demo-shell {
        height: 720px;
        max-height: 720px;
        grid-template-columns: 1fr;
        grid-template-rows: 46px auto minmax(0, 1fr) 38px;
    }

    .ui-demo-shell aside {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 6px;
        padding: 10px 12px;
    }

    .ui-demo-shell aside strong {
        grid-column: 1 / -1;
    }

    .ui-demo-toolbar,
    .ui-definition-panel {
        grid-template-columns: 1fr;
    }

    .ui-search-demo,
    .ui-definition-copy {
        grid-column: auto;
    }

    .ui-term-list {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .ui-task-list article {
        align-items: flex-start;
        flex-direction: column;
    }

    .concept-theory-heading,
    .iteration-loop-card { grid-template-columns: 1fr; }

    .db-workspace-heading { align-items: flex-start; flex-direction: column; }

    .decision-branches,
    .mission-step-meta { grid-template-columns: 1fr; }
    .iteration-message-card { grid-template-columns: 1fr; }
    .mission-prompt-block > div { align-items: stretch; flex-direction: column; }
    .mission-prompt-block button { width: 100%; }
    .sim-pdf { grid-template-columns: 1fr; }

    .ui-tabs-demo nav {
        display: grid;
    }

    .ui-task-list article {
        align-items: flex-start;
        flex-direction: column;
    }
}

@media (prefers-reduced-motion: reduce) {
    .module-two-layout *,
    .module-two-layout *::before,
    .module-two-layout *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }
}