:root {
    color-scheme: light;
    --techne-grid: rgba(10, 10, 10, 0.075);
    --techne-shadow: 10px 10px 0 rgba(10, 10, 10, 0.12);
    --techne-shadow-small: 5px 5px 0 rgba(10, 10, 10, 0.10);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body.techne-course-page {
    margin: 0;
    min-height: 100vh;
    background: var(--techne-bg, #fff);
    color: var(--techne-text, #0a0a0a);
    font-family: 'Space Grotesk', system-ui, sans-serif;
    line-height: 1.55;
}

.techne-skip {
    position: fixed;
    left: 1rem;
    top: -5rem;
    z-index: 100;
    padding: 0.75rem 1rem;
    background: var(--techne-text, #0a0a0a);
    color: var(--techne-text-inverted, #fff);
}
.techne-skip:focus { top: 1rem; }

.techne-topbar {
    position: relative;
    z-index: 3;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    width: min(1180px, calc(100% - 3rem));
    margin: 0 auto;
    padding: 1.35rem 0;
    border-bottom: 3px solid var(--techne-text, #0a0a0a);
}

.techne-wordmark {
    color: inherit;
    font-family: 'Space Mono', monospace;
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-decoration: none;
    text-transform: uppercase;
}
.techne-wordmark span { color: var(--techne-accent, #e63946); }

.techne-topbar nav,
.techne-footer nav { display: flex; flex-wrap: wrap; gap: 1.5rem; }
.techne-topbar nav a,
.techne-footer a {
    color: inherit;
    font-family: 'Space Mono', monospace;
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-decoration: none;
    text-transform: uppercase;
}
.techne-topbar nav a:hover,
.techne-topbar nav a[aria-current='page'],
.techne-footer a:hover { color: var(--techne-accent, #e63946); }

.techne-grid-field {
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background-image:
        linear-gradient(var(--techne-grid) 1px, transparent 1px),
        linear-gradient(90deg, var(--techne-grid) 1px, transparent 1px);
    background-size: 30px 30px;
    mask-image: linear-gradient(to bottom, #000 0, transparent 75%);
}

.techne-course-hero {
    position: relative;
    width: min(1180px, calc(100% - 3rem));
    margin: 4rem auto 3.25rem;
    padding: 3.5rem clamp(1.5rem, 5vw, 4.5rem);
    overflow: hidden;
    border: 4px solid var(--techne-text, #0a0a0a);
    background: rgba(255, 255, 255, 0.94);
    box-shadow: var(--techne-shadow);
}
.techne-course-hero::before {
    content: '';
    position: absolute;
    inset: 0 auto 0 0;
    width: 10px;
    background: var(--techne-accent, #e63946);
}
.techne-course-hero::after {
    content: '';
    position: absolute;
    right: 1.5rem;
    top: 1.5rem;
    width: min(29vw, 260px);
    aspect-ratio: 1;
    background: var(--course-hero-image, linear-gradient(135deg, transparent 46%, var(--techne-accent, #e63946) 47% 52%, transparent 53%));
    background-position: center;
    background-size: cover;
    opacity: 0.16;
    transform: rotate(3deg);
}
.techne-course-hero > * { position: relative; z-index: 1; max-width: 850px; }
.techne-hero-kicker,
.course-card-meta {
    font-family: 'Space Mono', monospace;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}
.techne-hero-kicker { color: var(--techne-accent, #e63946); }
.techne-course-hero h1 {
    margin: 0.8rem 0 0;
    font-size: clamp(2.7rem, 7vw, 6.8rem);
    line-height: 0.94;
    letter-spacing: -0.065em;
    max-width: 920px;
}
.techne-course-hero:not(.techne-course-hero-index) h1 { font-size: clamp(2.5rem, 6vw, 5.4rem); }
.techne-hero-subtitle {
    margin: 1.25rem 0 0;
    max-width: 760px;
    font-size: clamp(1.1rem, 2vw, 1.45rem);
}
.techne-hero-meta {
    margin: 1.25rem 0 0;
    font-family: 'Space Mono', monospace;
    font-size: 0.72rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.techne-course-index-page,
.techne-course-detail {
    width: min(1180px, calc(100% - 3rem));
    margin: 0 auto 6rem;
}
.course-index { margin: 0; padding: 0; max-width: none; }
.courses-lede {
    max-width: 850px;
    margin: 0 0 1.5rem;
    font-size: clamp(1.05rem, 2vw, 1.35rem);
    line-height: 1.65;
}
.course-index-summary {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 0.75rem 2rem;
    margin-bottom: 2.5rem;
    padding: 0.85rem 0;
    border-block: 2px solid var(--techne-text, #0a0a0a);
    font-family: 'Space Mono', monospace;
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.techne-course-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 2.25rem;
    margin: 0;
    padding: 0;
    list-style: none;
}
.techne-course-card {
    position: relative;
    min-width: 0;
    overflow: hidden;
    border: 4px solid var(--techne-text, #0a0a0a);
    background: rgba(255, 255, 255, 0.94);
    box-shadow: var(--techne-shadow);
    transition: transform 160ms ease, box-shadow 160ms ease;
}
.techne-course-card:hover {
    transform: translate(-3px, -3px);
    box-shadow: 13px 13px 0 rgba(10, 10, 10, 0.14);
}
.techne-course-card::before {
    content: '';
    position: absolute;
    inset: 0 auto 0 0;
    width: 7px;
    background: var(--techne-accent, #e63946);
}
.techne-course-card::after {
    content: '';
    position: absolute;
    right: 1.25rem;
    top: 1.25rem;
    width: 145px;
    aspect-ratio: 1;
    border: 2px solid var(--techne-text, #0a0a0a);
    background: var(--course-bg-image, linear-gradient(145deg, var(--techne-surface, #fafafa), var(--techne-accent, #e63946)));
    background-position: center;
    background-size: cover;
    opacity: 0.82;
}
.techne-course-card article { height: 100%; }
.techne-course-card-content {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    min-height: 100%;
    padding: 2rem;
}
.course-card-meta { max-width: calc(100% - 165px); color: var(--techne-text-muted, #555); }
.course-card-title { max-width: calc(100% - 165px); margin: 0.65rem 0 0; font-size: 1.8rem; line-height: 1.08; }
.course-card-title a { color: inherit; text-decoration: none; }
.course-card-title a:hover { color: var(--techne-accent, #e63946); }
.course-card-subtitle { max-width: calc(100% - 165px); margin: 0.55rem 0 1.75rem; font-size: 0.92rem; font-weight: 600; }
.course-card-description { margin: 0 0 1.4rem; font-size: 0.93rem; line-height: 1.65; }

.course-card-facts {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0;
    margin: 0 0 1.2rem;
    border: 2px solid var(--techne-text, #0a0a0a);
}
.course-card-facts div { min-width: 0; padding: 0.65rem 0.75rem; border-bottom: 1px solid var(--techne-border, #bbb); }
.course-card-facts div:nth-last-child(-n + 2) { border-bottom: 0; }
.course-card-facts div:nth-child(odd) { border-right: 1px solid var(--techne-border, #bbb); }
.course-card-facts dt,
.course-card-facts dd { margin: 0; }
.course-card-facts dt {
    font-family: 'Space Mono', monospace;
    font-size: 0.58rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--techne-text-muted, #555);
}
.course-card-facts dd { margin-top: 0.2rem; font-size: 0.78rem; overflow-wrap: anywhere; }
.techne-course-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 1rem; }
.techne-course-tag {
    padding: 0.3rem 0.48rem;
    border: 1px solid var(--techne-text, #0a0a0a);
    font-family: 'Space Mono', monospace;
    font-size: 0.58rem;
    font-weight: 700;
    text-transform: uppercase;
}
.course-card-objectives { margin-bottom: 1.4rem; border-block: 1px solid var(--techne-border, #bbb); }
.course-card-objectives summary {
    padding: 0.7rem 0;
    cursor: pointer;
    font-family: 'Space Mono', monospace;
    font-size: 0.66rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}
.course-card-objectives ul { margin: 0 0 1rem; padding-left: 1.2rem; font-size: 0.83rem; }
.course-card-actions { display: flex; flex-wrap: wrap; gap: 0.65rem; margin-top: auto; }
.techne-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 0.65rem 0.8rem;
    border: 2px solid var(--techne-text, #0a0a0a);
    background: var(--techne-accent, #e63946);
    color: var(--techne-text-inverted, #fff);
    box-shadow: 3px 3px 0 var(--techne-text, #0a0a0a);
    font-family: 'Space Mono', monospace;
    font-size: 0.6rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-decoration: none;
    text-transform: uppercase;
}
.techne-button:hover { transform: translate(-1px, -1px); box-shadow: 4px 4px 0 var(--techne-text, #0a0a0a); }
.techne-button-secondary { background: var(--techne-bg, #fff); color: var(--techne-text, #0a0a0a); }

.techne-course-detail {
    max-width: 920px;
    padding: clamp(1.5rem, 5vw, 4.5rem);
    border: 4px solid var(--techne-text, #0a0a0a);
    background: rgba(255, 255, 255, 0.96);
    box-shadow: var(--techne-shadow);
}
.techne-course-detail > p:first-child { font-size: 1.25rem; line-height: 1.7; }
.techne-course-detail h2 {
    margin: 3rem 0 1rem;
    padding-bottom: 0.55rem;
    border-bottom: 4px solid var(--techne-text, #0a0a0a);
    font-size: clamp(1.55rem, 4vw, 2.35rem);
    letter-spacing: -0.035em;
}
.techne-course-detail h3 { margin-top: 2rem; font-size: 1.3rem; }
.techne-course-detail a { color: var(--techne-accent, #e63946); text-underline-offset: 0.18em; }
.techne-course-detail ul,
.techne-course-detail ol { padding-left: 1.4rem; }
.techne-course-detail li + li { margin-top: 0.55rem; }
.techne-course-detail blockquote { margin: 1.5rem 0; padding: 1rem 1.25rem; border-left: 7px solid var(--techne-accent, #e63946); background: var(--techne-surface, #fafafa); }
.techne-course-detail table { width: 100%; border-collapse: collapse; }
.techne-course-detail th,
.techne-course-detail td { padding: 0.65rem; border: 2px solid var(--techne-text, #0a0a0a); text-align: left; }
.course-objectives,
.course-materials,
.course-readings { margin-top: 3rem; }
.course-section-note { color: var(--techne-text-muted, #555); }
.course-materials ol,
.reading-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.75rem; margin-top: 1.25rem; padding: 0; list-style: none; counter-reset: materials; }
.course-materials li,
.reading-item { position: relative; margin: 0; padding: 0.9rem 1rem 0.9rem 3.2rem; border: 2px solid var(--techne-text, #0a0a0a); background: var(--techne-surface, #fafafa); font-size: 0.86rem; }
.course-materials li { counter-increment: materials; }
.course-materials li::before { content: counter(materials, decimal-leading-zero); position: absolute; left: 0.8rem; top: 0.9rem; color: var(--techne-accent, #e63946); font-family: 'Space Mono', monospace; font-weight: 700; }
.reading-title { display: block; font-weight: 700; }
.reading-author,
.reading-year { color: var(--techne-text-muted, #555); }
.course-dashboard { margin-top: 3rem; padding-top: 1.25rem; border-top: 3px solid var(--techne-text, #0a0a0a); font-family: 'Space Mono', monospace; font-size: 0.72rem; font-weight: 700; text-transform: uppercase; }

.techne-footer {
    display: grid;
    grid-template-columns: 1.2fr 1fr auto;
    gap: 2rem;
    width: min(1180px, calc(100% - 3rem));
    margin: 0 auto;
    padding: 2rem 0 3rem;
    border-top: 3px solid var(--techne-text, #0a0a0a);
    font-family: 'Space Mono', monospace;
    font-size: 0.66rem;
    text-transform: uppercase;
}
.techne-footer div { display: flex; flex-direction: column; }
.techne-footer span { margin-top: 0.3rem; color: var(--techne-text-muted, #555); }
.techne-footer p { margin: 0; text-align: right; }

@media (max-width: 860px) {
    .techne-course-grid { grid-template-columns: 1fr; }
    .techne-footer { grid-template-columns: 1fr; }
    .techne-footer p { text-align: left; }
}

@media (max-width: 640px) {
    .techne-topbar { align-items: flex-start; flex-direction: column; }
    .techne-topbar nav { gap: 0.85rem; }
    .techne-course-hero,
    .techne-course-index-page,
    .techne-course-detail,
    .techne-footer { width: min(100% - 1.5rem, 1180px); }
    .techne-course-hero { margin-top: 2rem; padding: 2.2rem 1.35rem; }
    .techne-course-card::after { width: 95px; }
    .course-card-meta,
    .course-card-title,
    .course-card-subtitle { max-width: calc(100% - 112px); }
    .course-card-facts,
    .course-materials ol,
    .reading-list { grid-template-columns: 1fr; }
    .course-card-facts div { border-right: 0 !important; border-bottom: 1px solid var(--techne-border, #bbb) !important; }
    .course-card-facts div:last-child { border-bottom: 0 !important; }
}