/*
 * Fagkomponenter.
 * Grunnstil, fargevariabler, sidebar og sideoppsett kommer fra assets/css/site.css.
 */

/* Felles introduksjon og metadata */
.course-code {
    margin: 0 0 .5rem;
    color: var(--blue-light);
    font-size: .82rem;
    font-weight: 800;
    letter-spacing: .1em;
    text-transform: uppercase;
}

.page-intro .course-code {
    margin-bottom: .65rem;
}

.page-intro .course-code + h1 {
    font-size: clamp(2.25rem, 5vw, 3.45rem);
}

/* Fagoversikt */
.subject-overview-page .page-intro {
    margin-bottom: 2rem;
}

.course-switcher {
    display: inline-flex;
    margin-bottom: 2.25rem;
    padding: .3rem;
    gap: .25rem;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--surface-subtle);
}

.course-switcher-tab {
    min-height: 42px;
    padding: .65rem 1rem;
    border: 1px solid transparent;
    border-radius: 7px;
    background: transparent;
    color: var(--text-secondary);
    font: inherit;
    font-weight: 700;
    cursor: pointer;
    text-decoration: none;
}

.course-switcher-tab:hover {
    color: var(--text-primary);
}

.course-switcher-tab[aria-selected="true"],
.course-switcher-tab[aria-current="page"] {
    border-color: var(--purple);
    background: var(--purple-subtle);
    color: var(--purple-light);
}

.course-switcher-tab:focus-visible {
    outline: 3px solid var(--purple-light);
    outline-offset: 2px;
}

.course-panel {
    scroll-margin-top: 1rem;
}

.course-panel[hidden] {
    display: none;
}

.course-panel-header {
    display: flex;
    margin-bottom: 1.25rem;
    padding-bottom: 1rem;
    align-items: flex-end;
    justify-content: space-between;
    gap: 1.5rem;
    border-bottom: 1px solid var(--border);
}

.course-panel-header h2 {
    margin: 0;
    font-size: clamp(1.55rem, 3vw, 2rem);
}

.course-panel-header > p {
    max-width: 34ch;
    margin: 0;
    color: var(--text-muted);
    text-align: right;
}

.section-kicker {
    margin: 0 0 .35rem;
    color: var(--blue-light);
    font-size: .78rem;
    font-weight: 800;
    letter-spacing: .1em;
    text-transform: uppercase;
}

.course-grid {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 1rem;
}

.course-card {
    display: flex;
    min-width: 0;
    min-height: 0;
    padding: 1.5rem;
    grid-column: span 6;
    flex-direction: column;
    align-items: flex-start;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--surface);
    transition: border-color .15s ease, background-color .15s ease;
}

.course-card:nth-child(4n + 2),
.course-card:nth-child(4n + 3) {
    background: var(--surface-subtle);
}

.course-card:hover {
    border-color: var(--purple);
}

.course-card h2,
.course-card h3,
.course-card h4 {
    margin: 0;
    font-size: 1.25rem;
    line-height: 1.3;
}

.course-card > p:not(.course-code) {
    max-width: 50ch;
    margin: .75rem 0 1.35rem;
}

.course-card .button-link {
    margin-top: auto;
}

.previous-courses-panel {
    max-width: 1120px;
}

.semester-group {
    margin-top: 2.6rem;
}

.semester-group:first-of-type {
    margin-top: 1.8rem;
}

.semester-heading {
    display: flex;
    margin-bottom: 1rem;
    align-items: baseline;
    justify-content: space-between;
    gap: 1rem;
}

.semester-heading h3 {
    margin: 0;
    font-size: 1.2rem;
}

.semester-heading span {
    color: var(--text-muted);
    font-size: .88rem;
}

.previous-course-grid {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: .85rem;
}

.previous-course-card {
    padding: 1.25rem;
    grid-column: span 4;
    background: var(--surface-subtle);
}

.previous-course-card:nth-child(2n) {
    background: var(--surface);
}

.previous-course-card h4 {
    font-size: 1.08rem;
}

.previous-course-card > p:not(.course-code) {
    color: var(--text-secondary);
    font-size: .94rem;
    line-height: 1.65;
}

.course-card-meta-row {
    display: flex;
    width: 100%;
    margin-bottom: .5rem;
    align-items: center;
    justify-content: space-between;
    gap: .75rem;
}

.course-card-meta-row .course-code {
    margin: 0;
}

.course-credit {
    padding: .15rem .45rem;
    border: 1px solid var(--border);
    border-radius: 5px;
    color: var(--text-muted);
    font-size: .72rem;
    white-space: nowrap;
}

.course-card-zero {
    border-color: color-mix(in srgb, var(--border) 72%, transparent);
    background: transparent;
}

.ntnu-link {
    display: inline-flex;
    min-height: 44px;
    width: fit-content;
    margin-top: auto;
    align-items: center;
    gap: .35rem;
    color: var(--blue-light);
    font-weight: 750;
    text-decoration: none;
}

.ntnu-link:hover,
.ntnu-link:focus-visible {
    color: var(--text-primary);
    text-decoration: underline;
    text-underline-offset: .22em;
}

.ntnu-link:focus-visible {
    outline: 3px solid var(--purple-light);
    outline-offset: 3px;
}

/* Enkle fag-sider som ennå ikke har moduler */
.content-card {
    max-width: 760px;
    padding: 1.75rem;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--surface);
}

.content-card > :first-child {
    margin-top: 0;
}

.content-card > :last-child {
    margin-bottom: 0;
}

/* IT2810 – emneoversikt og webstack */
.it2810-overview-page {
    max-width: 1080px;
}

.it2810-course-header {
    max-width: 900px;
    margin-bottom: 0;
}

.it2810-course-lede {
    max-width: 78ch;
    margin: 1rem 0 0;
    color: var(--text-secondary);
    font-size: 1.08rem;
    line-height: 1.75;
}

.it2810-course-facts {
    display: flex;
    margin: 1.35rem 0 0;
    padding: 0;
    flex-wrap: wrap;
    gap: .55rem 1.35rem;
    color: var(--text-muted);
    font-size: .9rem;
    list-style: none;
}

.it2810-course-facts li {
    display: inline-flex;
    align-items: center;
    gap: .55rem;
}

.it2810-course-facts li::before {
    width: 5px;
    height: 5px;
    flex: 0 0 auto;
    border-radius: 50%;
    background: var(--blue);
    content: "";
}

.it2810-course-actions {
    margin-top: 1.1rem;
}

.it2810-course-actions .ntnu-link {
    margin-top: 0;
}

.it2810-section {
    margin-top: 4rem;
    padding-top: 3rem;
    border-top: 1px solid var(--border);
}

.it2810-section-header {
    max-width: 780px;
    margin-bottom: 1.75rem;
}

.it2810-section-kicker,
.it2810-project-label {
    margin: 0 0 .45rem;
    color: var(--blue-light);
    font-size: .76rem;
    font-weight: 800;
    letter-spacing: .09em;
    line-height: 1.45;
    text-transform: uppercase;
}

.it2810-section-header h2 {
    margin: 0;
    font-size: clamp(1.55rem, 3vw, 2rem);
    line-height: 1.25;
}

.it2810-section-header > p:last-child {
    margin: .8rem 0 0;
    color: var(--text-secondary);
    line-height: 1.7;
}

.it2810-competency-grid {
    display: grid;
    margin: 0;
    padding: 0;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1.5rem;
    list-style: none;
}

.it2810-competency {
    min-width: 0;
    padding-top: 1rem;
    border-top: 2px solid var(--purple);
}

.it2810-competency-number,
.it2810-stack-number {
    color: var(--blue);
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
    font-size: .78rem;
    font-weight: 800;
}

.it2810-competency h3 {
    margin: .45rem 0 0;
    font-size: 1.03rem;
    line-height: 1.4;
}

.it2810-competency > p:not(.it2810-concepts) {
    margin: .65rem 0 0;
    color: var(--text-secondary);
    line-height: 1.6;
}

.it2810-concepts,
.it2810-stack-tech,
.it2810-cross-cutting-topics {
    color: var(--text-muted);
    font-size: .88rem;
    line-height: 1.65;
    overflow-wrap: anywhere;
}

.it2810-concepts {
    margin: .8rem 0 0;
}

.it2810-architecture {
    display: grid;
    grid-template-columns: minmax(0, 1.55fr) minmax(260px, .65fr);
    align-items: start;
    gap: 1.5rem;
}

.it2810-stack {
    display: grid;
    margin: 0;
    padding: 0;
    gap: .65rem;
    list-style: none;
}

.it2810-stack-layer {
    position: relative;
    display: grid;
    min-width: 0;
    padding: 1.05rem 1.15rem;
    grid-template-columns: 2rem minmax(0, 1fr);
    gap: .8rem;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--surface);
}

.it2810-stack-layer:nth-child(even) {
    background: var(--surface-subtle);
}

.it2810-stack-layer:not(:last-child)::after {
    position: absolute;
    bottom: -.66rem;
    left: 2.1rem;
    width: 1px;
    height: .65rem;
    background: var(--purple);
    content: "";
}

.it2810-stack-layer h3 {
    margin: 0;
    font-size: 1.08rem;
    line-height: 1.4;
}

.it2810-stack-layer p:not(.it2810-stack-tech) {
    margin: .45rem 0 0;
    color: var(--text-secondary);
    line-height: 1.6;
}

.it2810-stack-tech {
    margin: .55rem 0 0;
    color: var(--blue-light);
}

.it2810-cross-cutting {
    padding: 1.45rem 1.5rem;
    border: 1px solid var(--border);
    border-left: 3px solid var(--amber);
    border-radius: 10px;
    background: var(--surface-subtle);
}

.it2810-cross-cutting h3,
.it2810-ai-note h3 {
    margin: 0;
    font-size: 1.15rem;
    line-height: 1.4;
}

.it2810-cross-cutting > p:not(.it2810-section-kicker, .it2810-cross-cutting-topics) {
    margin: .65rem 0 0;
    color: var(--text-secondary);
    line-height: 1.65;
}

.it2810-cross-cutting-topics {
    margin: 1rem 0 0;
    color: var(--amber-light);
}

.it2810-project-path {
    display: grid;
    margin: 0;
    padding: 0;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 2.75rem;
    list-style: none;
}

.it2810-project-path > li {
    position: relative;
    min-width: 0;
}

.it2810-project-path > li + li::before {
    position: absolute;
    top: 2rem;
    left: -1.9rem;
    width: 1rem;
    height: 2px;
    background: var(--purple-light);
    content: "";
}

.it2810-project-phase {
    min-height: 100%;
    padding-top: 1.1rem;
    border-top: 2px solid var(--purple);
}

.it2810-project-path > li:last-child .it2810-project-phase {
    border-top-color: var(--blue);
}

.it2810-project-phase h3 {
    margin: 0;
    font-size: 1.25rem;
}

.it2810-project-phase > p:not(.it2810-project-label, .it2810-concepts) {
    margin: .7rem 0 0;
    color: var(--text-secondary);
    line-height: 1.65;
}

.it2810-coursework-grid {
    display: grid;
    grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
    gap: 2rem;
}

.it2810-workflow,
.it2810-assessment {
    min-width: 0;
    padding-top: 1rem;
    border-top: 2px solid var(--purple);
}

.it2810-assessment {
    border-top-color: var(--blue);
}

.it2810-workflow h3,
.it2810-assessment h3 {
    margin: 0;
    font-size: 1.2rem;
}

.it2810-workflow > p {
    margin: .7rem 0 0;
    color: var(--text-secondary);
    line-height: 1.65;
}

.it2810-workflow ul {
    margin: 1rem 0 0;
    padding-left: 1.15rem;
    color: var(--text-secondary);
    line-height: 1.65;
}

.it2810-workflow li + li {
    margin-top: .35rem;
}

.it2810-assessment dl {
    margin: .7rem 0 0;
}

.it2810-assessment dl > div {
    display: grid;
    padding: .75rem 0;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 1rem;
    border-top: 1px solid var(--border);
}

.it2810-assessment dl > div:first-child {
    border-top: 0;
}

.it2810-assessment dt {
    color: var(--text-secondary);
    line-height: 1.55;
}

.it2810-assessment dd {
    margin: 0;
    color: var(--purple-light);
    font-weight: 800;
    white-space: nowrap;
}

.it2810-ai-note {
    max-width: 860px;
    margin-top: 2rem;
    padding: 1.25rem 1.4rem;
    border: 1px solid var(--border);
    border-left: 3px solid var(--amber);
    border-radius: 10px;
    background: var(--surface-subtle);
}

.it2810-ai-note > p:last-child {
    margin: .65rem 0 0;
    color: var(--text-secondary);
    line-height: 1.65;
}

.it2810-stack-layer:target,
.it2810-cross-cutting:target {
    scroll-margin-top: 2rem;
    outline: 2px solid var(--purple);
    outline-offset: 5px;
}

@media (max-width: 900px) {
    .it2810-competency-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .it2810-architecture {
        grid-template-columns: minmax(0, 1fr);
    }
}

@media (max-width: 760px) {
    .it2810-project-path,
    .it2810-coursework-grid {
        grid-template-columns: minmax(0, 1fr);
    }

    .it2810-project-path {
        gap: 2rem;
    }

    .it2810-project-path > li + li::before {
        top: -1rem;
        left: 1rem;
        width: 2px;
        height: .75rem;
    }
}

@media (max-width: 520px) {
    .it2810-course-facts,
    .it2810-competency-grid {
        display: grid;
        grid-template-columns: minmax(0, 1fr);
        gap: .65rem;
    }

    .it2810-stack-layer {
        padding-right: 1rem;
        padding-left: 1rem;
        grid-template-columns: 1.5rem minmax(0, 1fr);
        gap: .6rem;
    }

    .it2810-stack-layer:not(:last-child)::after {
        left: 1.72rem;
    }

    .it2810-cross-cutting,
    .it2810-ai-note {
        padding-right: 1rem;
        padding-left: 1rem;
    }

    .it2810-assessment dl > div {
        grid-template-columns: minmax(0, 1fr);
        gap: .3rem;
    }
}

summary:focus-visible {
    outline: 3px solid var(--purple-light);
    outline-offset: 3px;
}

details {
    margin-top: .75rem;
    padding: 1.15rem 1.25rem;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--surface);
}

details[open] {
    background: var(--surface-subtle);
}

summary {
    color: var(--text-primary);
    font-weight: 750;
    line-height: 1.45;
    cursor: pointer;
}

details[open] summary {
    margin-bottom: 1rem;
}

details > :last-child {
    margin-bottom: 0;
}

code {
    color: var(--blue-light);
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
}

pre {
    max-width: 100%;
    overflow-x: auto;
    margin: 1rem 0 0;
    padding: 1rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--background);
    color: var(--text-secondary);
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
    font-size: .9rem;
    line-height: 1.55;
    tab-size: 4;
}

table {
    display: block;
    width: 100%;
    max-width: 100%;
    overflow-x: auto;
    margin-top: 1rem;
    border-collapse: collapse;
}

th,
td {
    min-width: 140px;
    padding: .75rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
    vertical-align: top;
}

th {
    color: var(--blue-light);
    font-size: .9rem;
}

/* Eldre mal-side bruker fortsatt .back. */
.back {
    color: var(--blue-light);
    font-weight: 700;
    text-decoration: none;
    text-underline-offset: .22em;
}

.back:hover {
    color: var(--text-primary);
    text-decoration: underline;
}

@media (max-width: 760px) {
    .course-card {
        grid-column: 1 / -1;
        min-height: 0;
    }
}

@media (max-width: 520px) {
    .course-card,
    .content-card,
    details {
        padding-right: 1rem;
        padding-left: 1rem;
    }
}

@media (max-width: 980px) {
    .previous-course-card {
        grid-column: span 6;
    }
}

@media (max-width: 760px) {
    .course-switcher {
        display: flex;
        width: 100%;
    }

    .course-switcher-tab {
        flex: 1;
    }

    .course-panel-header {
        align-items: flex-start;
        flex-direction: column;
        gap: .55rem;
    }

    .course-panel-header > p {
        max-width: none;
        text-align: left;
    }

    .previous-course-card {
        grid-column: 1 / -1;
    }
}

@media (max-width: 520px) {
    .course-switcher-tab {
        padding-right: .65rem;
        padding-left: .65rem;
    }

    .semester-heading {
        align-items: flex-start;
        flex-direction: column;
        gap: .25rem;
    }
}

/* IT2810 · kompakt fagkart */
.it2810-topic-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 2rem;
}

.it2810-topic {
    min-width: 0;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
    scroll-margin-top: 2rem;
    overflow-wrap: anywhere;
}

.it2810-topic h3 {
    margin: 0;
    font-size: 1.17rem;
}

.it2810-topic p,
.it2810-topic ul {
    margin: .8rem 0 0;
    color: var(--text-secondary);
    line-height: 1.65;
}

.it2810-topic ul {
    padding-left: 1.15rem;
}

.it2810-topic li + li {
    margin-top: .65rem;
}

.it2810-topic:target {
    outline: 2px solid var(--purple);
    outline-offset: 5px;
}

@media (max-width: 760px) {
    .it2810-topic-grid {
        grid-template-columns: minmax(0, 1fr);
    }
}