:root {
    --hci-navy: #1e3a5f;
    --hci-navy-deep: #0d1f36;
    --hci-blue: #4a7bc8;
    --hci-blue-pale: #e8f0fe;
    --hci-gold: #b5925a;
    --hci-gold-pale: #fff8e6;
    --hci-green: #2a7d4f;
    --hci-green-pale: #f0f9f2;
    --hci-ink: #1a1a2e;
    --hci-muted: #5a6a7a;
    --hci-border: #d0ddf0;
}

body.fraser-hci-page .portfolio-layout {
    align-items: start;
    min-height: calc(100vh - var(--header-height, 80px));
    padding-top: 0;
}

/* These two rules used to collapse the layout to one column and hide
   #sidebar-container whenever data-use-shared-sidebar="false" was present.
   That attribute means "do not load the SHARED TEACHING sidebar" — it is not a
   statement about the PORTFOLIO sidebar, which this page's own
   js/portfolio-sidebar.js renders into #sidebar-container. The result was a
   sidebar that built itself correctly (10kB of markup in the container) and was
   then hidden by CSS, so the page shipped with no navigation at all.
   The portfolio grid default (260px + content, css/portfolio.css) now applies.
   The print rule further down still hides the sidebar, which is correct. */

body.fraser-hci-page #site-footer-container {
    overflow: hidden;
}

body.fraser-hci-page .essay-main {
    min-width: 0;
}

.essay-hero {
    background:
        radial-gradient(ellipse 60% 40% at 80% 20%, rgba(74, 123, 200, 0.2) 0%, transparent 70%),
        radial-gradient(ellipse 40% 60% at 10% 80%, rgba(181, 146, 90, 0.12) 0%, transparent 70%),
        linear-gradient(135deg, var(--hci-navy-deep) 0%, var(--hci-navy) 60%, #2a4d7f 100%);
    color: white;
    overflow: hidden;
    padding: 4rem 2rem 3rem;
}

.essay-hero-inner,
.essay-body {
    margin-inline: auto;
    max-width: 72ch;
}

.hero-breadcrumbs {
    align-items: center;
    color: rgba(255, 255, 255, 0.58);
    display: flex;
    flex-wrap: wrap;
    font-size: 0.82rem;
    gap: 0.45rem;
    margin: 0 0 1.25rem;
}

.hero-breadcrumbs a {
    color: rgba(255, 255, 255, 0.82);
    font-weight: 500;
    text-decoration: none;
}

.hero-breadcrumbs a:hover,
.hero-breadcrumbs a:focus-visible {
    color: white;
    text-decoration: underline;
}

.hero-breadcrumbs span {
    color: rgba(255, 255, 255, 0.35);
}

.essay-badge {
    align-items: center;
    background: rgba(74, 123, 200, 0.25);
    border: 1px solid rgba(74, 123, 200, 0.4);
    border-radius: 50px;
    color: #a8c4f0;
    display: inline-flex;
    font-size: 0.8rem;
    font-weight: 600;
    gap: 0.5rem;
    letter-spacing: 0.05em;
    margin-bottom: 1.5rem;
    padding: 0.35rem 1rem;
    text-transform: uppercase;
}

.essay-hero h1 {
    color: white;
    font-family: Lora, Georgia, serif;
    font-size: clamp(1.6rem, 3.5vw, 2.5rem);
    font-weight: 600;
    line-height: 1.25;
    margin: 0 0 1rem;
}

.essay-hero h1 em {
    color: #a8c4f0;
}

.essay-hero .subheading {
    color: rgba(255, 255, 255, 0.78);
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 2rem;
}

.essay-meta-strip {
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-top: 2rem;
    padding-top: 1.5rem;
}

.essay-meta-item {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.essay-meta-label {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.essay-meta-value {
    color: rgba(255, 255, 255, 0.92);
    font-size: 0.9rem;
}

.essay-body {
    padding: 3rem 1.5rem 4rem;
}

.essay-body p {
    color: var(--hci-ink);
    font-family: Lora, Georgia, serif;
    font-size: 1.02rem;
    line-height: 1.78;
    margin: 0 0 1.35rem;
}

.section-divider {
    align-items: center;
    display: flex;
    gap: 1rem;
    margin: 3rem 0 1.5rem;
}

.section-divider h2 {
    color: var(--hci-navy);
    font-family: Lora, Georgia, serif;
    font-size: 1.3rem;
    margin: 0;
}

.section-divider-line {
    background: linear-gradient(to right, var(--hci-border), transparent);
    flex: 1;
    height: 1.5px;
}

.ao-chip {
    align-items: center;
    background: var(--hci-blue-pale);
    border: 1px solid #c0d0ea;
    border-radius: 6px;
    color: var(--hci-navy);
    display: inline-flex;
    font-size: 0.8rem;
    font-weight: 500;
    gap: 0.4rem;
    margin: 0.25rem 0.25rem 0 0;
    padding: 0.3rem 0.75rem;
}

.planning-grid,
.principle-grid,
.analysis-chain,
.scenario-grid,
.grade-grid {
    display: grid;
    gap: 0.9rem;
    margin: 1.25rem 0;
}

.planning-grid,
.principle-grid,
.scenario-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.analysis-chain {
    counter-reset: chain;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    list-style: none;
    padding: 0;
}

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

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

.planning-card,
.principle-card,
.scenario-card,
.modelled-box {
    background: white;
    border: 1.5px solid var(--hci-border);
    border-radius: 10px;
    padding: 1rem 1.15rem;
}

.planning-card h3,
.principle-card h3,
.scenario-card h3,
.modelled-box h3 {
    color: var(--hci-navy);
    font-size: 0.96rem;
    margin: 0 0 0.45rem;
}

.planning-card p,
.principle-card p,
.scenario-card p,
.modelled-box p {
    color: var(--hci-muted) !important;
    font-family: Inter, system-ui, sans-serif !important;
    font-size: 0.86rem !important;
    line-height: 1.58 !important;
    margin: 0 !important;
}

.analysis-step {
    background: var(--hci-blue-pale);
    border: 1px solid #c0d0ea;
    border-radius: 10px;
    counter-increment: chain;
    min-height: 8rem;
    padding: 1rem;
}

.analysis-step::before {
    background: var(--hci-navy);
    border-radius: 999px;
    color: white;
    content: counter(chain);
    display: grid;
    font-size: 0.72rem;
    font-weight: 700;
    height: 1.45rem;
    margin-bottom: 0.55rem;
    place-items: center;
    width: 1.45rem;
}

.analysis-step strong {
    color: var(--hci-navy);
    display: block;
    font-size: 0.82rem;
    margin-bottom: 0.35rem;
}

.analysis-step span {
    color: var(--hci-muted);
    font-size: 0.78rem;
    line-height: 1.45;
}

.success-list,
.transition-list,
.check-list {
    list-style: none;
    margin: 0.5rem 0 1.5rem;
    padding: 0;
}

.success-list li,
.transition-list li,
.check-list li {
    align-items: baseline;
    border-bottom: 1px solid #f0f4fb;
    color: var(--hci-ink);
    display: flex;
    font-size: 0.9rem;
    gap: 0.65rem;
    line-height: 1.5;
    padding: 0.45rem 0;
}

.success-list li::before {
    color: var(--hci-green);
    content: "✓";
    font-weight: 700;
}

.check-list li::before {
    color: var(--hci-blue);
    content: "□";
    font-weight: 700;
}

.transition-list li::before {
    color: var(--hci-blue);
    content: "→";
    font-weight: 700;
}

.caveat-note,
.integrity-note,
.design-note {
    border-radius: 10px;
    margin: 1.5rem 0;
    padding: 1rem 1.25rem;
}

.caveat-note {
    background: var(--hci-gold-pale);
    border: 1.5px solid #e8c97a;
}

.integrity-note {
    background: var(--hci-green-pale);
    border: 1.5px solid #a9d6b8;
}

.design-note {
    background: #f8faff;
    border: 1.5px solid #c0d0ea;
}

.caveat-note p,
.integrity-note p,
.design-note p {
    color: var(--hci-muted) !important;
    font-family: Inter, system-ui, sans-serif !important;
    font-size: 0.87rem !important;
    line-height: 1.62 !important;
    margin: 0 !important;
}

.pedagogy-table-wrap {
    margin-top: 1rem;
    overflow-x: auto;
}

.pedagogy-table {
    border-collapse: collapse;
    font-size: 0.84rem;
    width: 100%;
}

.pedagogy-table th {
    background: var(--hci-navy);
    color: white;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    padding: 0.6rem 0.7rem;
    text-align: left;
}

.pedagogy-table td {
    border-bottom: 1px solid var(--hci-blue-pale);
    color: var(--hci-ink);
    line-height: 1.5;
    padding: 0.65rem 0.7rem;
    vertical-align: top;
}

.pedagogy-table tr:nth-child(even) td {
    background: #f8faff;
}

.timing-badge {
    background: var(--hci-blue-pale);
    border-radius: 4px;
    color: var(--hci-navy);
    display: inline-block;
    font-size: 0.76rem;
    font-weight: 600;
    padding: 0.12rem 0.42rem;
    white-space: nowrap;
}

.answer-key {
    background: var(--hci-green-pale);
    border: 2px solid var(--hci-green);
    border-radius: 12px;
    margin: 1.5rem 0;
    padding: 1.5rem;
}

.answer-key-flag {
    background: var(--hci-green);
    border-radius: 999px;
    color: white;
    display: inline-flex;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    margin-bottom: 0.9rem;
    padding: 0.3rem 0.7rem;
    text-transform: uppercase;
}

.answer-row {
    border-bottom: 1px solid #d8ecdd;
    padding: 0.8rem 0;
}

.answer-row:last-child {
    border-bottom: 0;
}

.answer-row.trap {
    background: var(--hci-gold-pale);
    border-radius: 6px;
    margin-inline: -0.5rem;
    padding-inline: 0.5rem;
}

.answer-row .aq {
    font-family: Inter, system-ui, sans-serif;
    font-size: 0.88rem;
    font-weight: 650;
    margin: 0 0 0.35rem;
}

.answer-row .aa {
    background: white;
    border: 1.5px solid var(--hci-green);
    border-radius: 6px;
    color: #1a5c3a;
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 700;
    margin-bottom: 0.4rem;
    padding: 0.2rem 0.6rem;
}

.answer-row .ar {
    color: var(--hci-muted);
    font-family: Inter, system-ui, sans-serif;
    font-size: 0.83rem;
    line-height: 1.58;
    margin: 0;
}

.trap-tag {
    background: #e8c97a;
    border-radius: 4px;
    color: #5c4416;
    display: inline-block;
    font-size: 0.66rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    margin-left: 0.35rem;
    padding: 0.15rem 0.5rem;
    text-transform: uppercase;
}

.grade-card {
    border-radius: 10px;
    color: white;
    min-height: 9rem;
    padding: 1rem;
}

.grade-card.a { background: linear-gradient(135deg, var(--hci-navy), #2a4d7f); }
.grade-card.m { background: linear-gradient(135deg, #7a5c1e, #9a7d4a); }
.grade-card.e { background: linear-gradient(135deg, #1a5c3a, var(--hci-green)); }

.grade-card strong {
    display: block;
    font-size: 0.72rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.grade-card h3 {
    color: white;
    font-size: 1.03rem;
    margin: 0.3rem 0;
}

.grade-card p {
    color: rgba(255, 255, 255, 0.92) !important;
    font-family: Inter, system-ui, sans-serif !important;
    font-size: 0.8rem !important;
    line-height: 1.5 !important;
    margin: 0 !important;
}

.resource-callout {
    align-items: flex-start;
    background: linear-gradient(135deg, #fdf3e3, #fef9f0);
    border: 1.5px solid #e8c97a;
    border-radius: 12px;
    display: flex;
    gap: 1.1rem;
    margin: 1.25rem 0;
    padding: 1.25rem;
}

.resource-callout-icon {
    flex-shrink: 0;
    font-size: 1.8rem;
}

.resource-callout h3 {
    color: #7a5c1e;
    font-size: 1rem;
    margin: 0 0 0.4rem;
}

.resource-callout p {
    color: #80672f !important;
    font-family: Inter, system-ui, sans-serif !important;
    font-size: 0.86rem !important;
    line-height: 1.5 !important;
    margin: 0 0 0.7rem !important;
}

.resource-link,
.unit-nav a {
    border-radius: 6px;
    display: inline-flex;
    font-size: 0.84rem;
    font-weight: 650;
    gap: 0.35rem;
    padding: 0.45rem 0.85rem;
    text-decoration: none;
}

.resource-link {
    background: var(--hci-gold);
    color: white;
}

.resource-link:hover,
.resource-link:focus-visible {
    background: #9a7d4a;
    color: white;
}

.unit-nav {
    border-top: 1px solid var(--hci-border);
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
    justify-content: space-between;
    margin-top: 3rem;
    padding-top: 1.25rem;
}

.unit-nav a {
    background: var(--hci-blue-pale);
    border: 1px solid #c0d0ea;
    color: var(--hci-navy);
}

.references-list {
    color: var(--hci-muted);
    font-size: 0.86rem;
    line-height: 1.68;
    padding-left: 1.35rem;
}

.references-list li {
    margin-bottom: 0.5rem;
}

.reflection-space {
    background: #fafbff;
    border: 1.5px dashed #c0d0ea;
    border-radius: 10px;
    margin: 1rem 0;
    padding: 1.2rem;
}

.reflection-line {
    border-bottom: 1px solid var(--hci-border);
    height: 1.8rem;
}

@media (max-width: 760px) {
    .essay-hero {
        padding: 2.4rem 1.15rem 2rem;
    }

    .essay-body {
        padding: 2rem 1rem 3rem;
    }

    .planning-grid,
    .principle-grid,
    .scenario-grid,
    .analysis-chain,
    .grade-grid {
        grid-template-columns: 1fr;
    }

    .analysis-step {
        min-height: 0;
    }

    .section-divider {
        align-items: flex-start;
    }

    .section-divider h2 {
        line-height: 1.3;
    }

    .resource-callout {
        gap: 0.75rem;
        padding: 1rem;
    }

    .pedagogy-table {
        min-width: 680px;
    }

    .unit-nav a {
        justify-content: center;
        width: 100%;
    }
}

@media print {
    @page {
        margin: 1.2cm;
        size: A4 portrait;
    }

    body.fraser-hci-page,
    body.fraser-hci-page .portfolio-layout {
        background: white !important;
        display: block !important;
    }

    body.fraser-hci-page #sidebar-container,
    .hero-breadcrumbs,
    .unit-nav,
    .no-print {
        display: none !important;
    }

    .essay-hero {
        background: white !important;
        border-bottom: 2px solid #1e3a5f;
        color: black;
        padding: 0 0 0.5cm;
    }

    .essay-hero h1,
    .essay-hero h1 em,
    .essay-hero .subheading,
    .essay-meta-label,
    .essay-meta-value {
        color: black !important;
    }

    .essay-badge {
        border: 1px solid #777;
        color: black;
        margin-bottom: 0.35cm;
    }

    .essay-hero .subheading {
        font-size: 10pt;
        margin-bottom: 0.4cm;
    }

    .essay-meta-strip {
        border-color: #aaa;
        margin-top: 0.3cm;
        padding-top: 0.3cm;
    }

    .essay-body {
        max-width: none;
        padding: 0;
    }

    .essay-body p {
        font-size: 9.5pt;
        line-height: 1.45;
    }

    .section-divider {
        break-after: avoid;
        margin: 0.8cm 0 0.35cm;
    }

    .planning-card,
    .principle-card,
    .scenario-card,
    .analysis-step,
    .answer-row,
    .caveat-note,
    .integrity-note,
    .design-note,
    .resource-callout,
    table,
    tr {
        break-inside: avoid;
    }
}