/* Site-wide course shell: shared banner and 2026 dark theme */
:root {
    --site-bg: #090d14;
    --site-bg-soft: #101721;
    --site-panel: rgba(18, 26, 38, 0.88);
    --site-panel-strong: #151e2b;
    --site-line: rgba(155, 172, 194, 0.18);
    --site-line-strong: rgba(199, 159, 77, 0.42);
    --site-text: #d8dee8;
    --site-text-bright: #f4f1e8;
    --site-muted: #98a5b7;
    --site-gold: #c79f4d;
    --site-gold-bright: #ebcc83;
    --site-blue: #75b7e8;
    --site-shadow: 0 24px 70px rgba(0, 0, 0, 0.34);
}

html {
    background: var(--site-bg);
    scroll-padding-top: 20px;
}

body,
body[style*="background-color"] {
    margin: 0 !important;
    min-height: 100vh;
    color: var(--site-text) !important;
    background:
        radial-gradient(circle at 12% 30%, rgba(46, 72, 105, 0.17), transparent 32rem),
        radial-gradient(circle at 88% 78%, rgba(124, 86, 31, 0.11), transparent 30rem),
        linear-gradient(180deg, #090d14 0%, #0b111a 50%, #090d14 100%) !important;
    background-attachment: fixed !important;
    font-family: "Source Sans 3", "Segoe UI", system-ui, sans-serif;
}

body::before {
    display: none !important;
}

/* Painting banner */
.site-banner {
    position: relative;
    isolation: isolate;
    width: 100%;
    min-height: clamp(280px, 19.27vw, 480px);
    overflow: hidden;
    border-bottom: 4px solid #126ca8;
    background-color: #191b1f;
    background-image: url("death-of-socrates cropped.jpg");
    background-position: center center;
    background-size: cover;
    box-shadow: 0 18px 55px rgba(0, 0, 0, 0.4);
}

.site-banner__shade {
    position: absolute;
    inset: 0;
    z-index: -1;
    background:
        linear-gradient(90deg, rgba(6, 9, 14, 0.92) 0%, rgba(6, 9, 14, 0.63) 37%, rgba(6, 9, 14, 0.3) 68%, rgba(6, 9, 14, 0.62) 100%),
        linear-gradient(0deg, rgba(6, 9, 14, 0.86) 0%, transparent 72%);
}

.site-banner__inner {
    display: flex;
    min-height: calc(clamp(280px, 19.27vw, 480px) - 4px);
    max-width: 1120px;
    margin: 0 auto;
    padding: 42px 28px 30px;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-end;
}

.site-banner__eyebrow,
.site-banner__page {
    max-width: 700px !important;
    margin: 0 !important;
    padding: 0 !important;
    border: 0 !important;
    background: none !important;
    box-shadow: none !important;
}

.site-banner__eyebrow {
    color: var(--site-gold-bright) !important;
    font-family: "Source Sans 3", "Segoe UI", sans-serif;
    font-size: 0.72rem !important;
    font-weight: 700;
    letter-spacing: 0.2em;
    line-height: 1.2 !important;
    text-transform: uppercase;
}

.site-banner__brand {
    margin-top: 8px;
    color: #fff !important;
    border: 0 !important;
    font-family: "Libre Baskerville", Georgia, serif;
    font-size: clamp(1.8rem, 4vw, 3.15rem);
    font-weight: 700;
    letter-spacing: -0.025em;
    line-height: 1.08;
    text-decoration: none;
    text-shadow: 0 3px 22px rgba(0, 0, 0, 0.82);
}

.site-banner__brand:hover {
    color: #fff !important;
    border: 0 !important;
    background: transparent !important;
}

.site-banner__page {
    margin-top: 9px !important;
    color: #d8e0ea !important;
    font-size: 0.9rem !important;
    line-height: 1.35 !important;
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.9);
}

.site-banner__nav {
    display: flex;
    margin-top: 24px;
    flex-wrap: wrap;
    gap: 8px;
}

.site-banner__nav a {
    padding: 7px 12px;
    color: #eef4fa !important;
    border: 1px solid rgba(255, 255, 255, 0.22) !important;
    border-radius: 999px;
    background: rgba(5, 10, 16, 0.54);
    font-size: 0.79rem;
    font-weight: 700;
    letter-spacing: 0.035em;
    text-decoration: none;
    backdrop-filter: blur(8px);
}

.site-banner__nav a:hover,
.site-banner__nav a:focus-visible {
    color: #fff !important;
    border-color: var(--site-gold) !important;
    background: rgba(199, 159, 77, 0.2) !important;
    outline: none;
}

/* Existing lesson content */
body > h1:first-of-type,
body > p,
body > div:not(.site-banner__inner),
body > main,
body > section {
    width: min(100% - 40px, 980px);
    max-width: 980px;
    margin-left: auto;
    margin-right: auto;
}

body > h1:first-of-type {
    margin-top: 42px;
    padding: 26px 30px !important;
    color: var(--site-text-bright) !important;
    border: 1px solid var(--site-line);
    border-left: 4px solid var(--site-gold);
    border-radius: 12px;
    background: linear-gradient(110deg, rgba(27, 37, 51, 0.96), rgba(15, 22, 32, 0.88));
    box-shadow: var(--site-shadow);
    font-size: clamp(1.45rem, 3vw, 2.15rem);
}

body > h1:first-of-type::after {
    display: none;
}

.page-title-surface {
    position: relative;
}

.page-title__emblem {
    position: absolute !important;
    top: 50% !important;
    right: 26px !important;
    z-index: 2;
    display: flex !important;
    width: 92px;
    height: 92px;
    padding: 0;
    align-items: center;
    justify-content: center;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    transform: translateY(-50%);
}

.page-title__emblem-image {
    display: block;
    width: 100% !important;
    height: 100% !important;
    max-width: none !important;
    max-height: none !important;
    border-radius: 0;
    object-fit: contain;
}

.page-title__emblem:not(.page-title__emblem--themed) .page-title__emblem-image {
    clip-path: polygon(4% 10%, 21% 3%, 50% 0, 79% 3%, 96% 10%, 98% 39%, 93% 61%, 81% 79%, 64% 92%, 50% 100%, 36% 92%, 19% 79%, 7% 61%, 2% 39%);
    filter: drop-shadow(0 7px 10px rgba(0, 0, 0, 0.35));
}

body > h1.page-title-surface {
    display: flex;
    padding-right: 30px !important;
    flex-direction: row;
    align-items: center;
    gap: 28px;
}

body > h1.page-title-surface .page-title__emblem {
    position: static !important;
    top: auto !important;
    right: auto !important;
    flex: 0 0 92px;
    margin-left: auto;
    transform: none;
}

.home-card--accent.page-title-surface {
    display: grid;
    padding-right: 30px !important;
    grid-template-columns: minmax(0, 1fr) 102px;
    column-gap: 34px;
}

.home-card--accent.page-title-surface > :not(.page-title__emblem) {
    grid-column: 1;
}

.home-card--accent.page-title-surface .page-title__emblem {
    position: static !important;
    top: auto !important;
    right: auto !important;
    grid-column: 2;
    grid-row: 1 / span 4;
    align-self: center;
    justify-self: center;
    transform: none;
}

.hero.page-title-surface {
    padding-right: 140px !important;
}

.hero.page-title-surface .page-title__emblem {
    right: max(26px, calc((100vw - 1120px) / 2 + 26px)) !important;
}

.page-title__emblem--themed {
    padding: 0;
    overflow: hidden;
    border: 1px solid rgba(199, 159, 77, 0.38);
    border-radius: 12px;
    background: #080c12;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.28);
}

.page-title__emblem--themed .page-title__emblem-image {
    border-radius: 11px;
    object-fit: cover;
}

body > p,
body > div.niceFormat {
    margin-top: 24px;
    padding: 28px 32px !important;
    color: var(--site-text) !important;
    border: 1px solid var(--site-line);
    border-radius: 12px;
    background: var(--site-panel);
    box-shadow: 0 14px 45px rgba(0, 0, 0, 0.2);
}

body > p {
    font-size: 1.04rem !important;
    line-height: 1.85;
}

h2,
h3,
h4 {
    color: var(--site-text-bright) !important;
}

a {
    color: var(--site-blue) !important;
    text-underline-offset: 0.2em;
}

a:hover,
a:focus-visible {
    color: #b8ddf7 !important;
}

pre,
.niceFormat,
div[style*="monospace"] {
    border-color: rgba(117, 183, 232, 0.18) !important;
    background: #080c12 !important;
}

pre {
    scrollbar-color: #3c5067 #0a0f16;
}

code {
    display: inline;
    margin: 0 !important;
    padding: 0.12em 0.38em !important;
    color: #91d7b5 !important;
    border: 1px solid rgba(117, 183, 232, 0.18) !important;
    border-radius: 4px;
    background: rgba(117, 183, 232, 0.07) !important;
    box-shadow: none !important;
    font-size: 0.88em !important;
    line-height: inherit !important;
    overflow-wrap: anywhere;
    position: static;
}

pre code {
    display: inline;
    margin: 0 !important;
    padding: 0 !important;
    color: inherit !important;
    border: 0 !important;
    background: transparent !important;
    box-shadow: none !important;
    font-size: inherit !important;
    line-height: inherit !important;
    overflow-wrap: normal;
}

table {
    display: block;
    max-width: 100%;
    overflow-x: auto;
}

/* Keeps the bespoke cipher assignment visually coherent below the global banner. */
.hero {
    margin-top: 0;
}

.hero h1 {
    display: block;
    max-width: none;
    margin: 0;
    padding: 0 !important;
    border: 0;
    background: transparent;
}

.home-shell {
    padding-top: 44px;
}

.home-intro {
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(240px, 0.65fr);
    gap: 22px;
}

.home-card {
    padding: 28px 30px;
    border: 1px solid var(--site-line);
    border-radius: 14px;
    background: var(--site-panel);
    box-shadow: 0 16px 52px rgba(0, 0, 0, 0.22);
}

.home-card--accent {
    border-top: 3px solid var(--site-gold);
}

.home-card h1,
.home-card h2 {
    margin: 0 0 14px;
    padding: 0 0 12px;
    color: var(--site-text-bright) !important;
    border-bottom: 1px solid var(--site-line);
    font-size: clamp(1.35rem, 2.5vw, 1.8rem);
}

.home-card p {
    margin: 0;
    color: var(--site-text) !important;
    font-size: 1rem !important;
    line-height: 1.75;
}

.home-card p + p {
    margin-top: 14px;
    padding: 0;
    border: 0;
    background: none;
}

.home-links {
    display: grid;
    margin: 18px 0 0;
    gap: 10px;
}

.home-links a {
    display: flex;
    min-height: 46px;
    padding: 11px 14px;
    align-items: center;
    border: 1px solid var(--site-line) !important;
    border-radius: 9px;
    background: rgba(255, 255, 255, 0.025);
    font-weight: 700;
}

.home-links a:hover {
    border-color: rgba(117, 183, 232, 0.48) !important;
    background: rgba(117, 183, 232, 0.08) !important;
}

.home-section {
    margin-top: 22px;
}

.home-kicker {
    display: block;
    margin-bottom: 8px;
    color: var(--site-gold-bright);
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.home-empty {
    color: var(--site-muted) !important;
    font-style: italic;
}

@media (max-width: 720px) {
    .site-banner {
        min-height: 235px;
        background-position: 53% center;
    }

    .site-banner__inner {
        min-height: 231px;
        padding: 30px 20px 24px;
    }

    .site-banner__brand {
        font-size: clamp(1.7rem, 8vw, 2.35rem);
    }

    .site-banner__nav {
        margin-top: 18px;
        gap: 6px;
    }

    .site-banner__nav a {
        padding: 6px 9px;
        font-size: 0.72rem;
    }

    body > h1:first-of-type,
    body > p,
    body > div:not(.site-banner__inner),
    body > main,
    body > section {
        width: min(100% - 24px, 980px);
    }

    body > h1:first-of-type,
    body > p,
    body > div.niceFormat {
        padding: 21px 20px !important;
    }

    .home-shell {
        padding-top: 28px;
    }

    .home-intro {
        grid-template-columns: 1fr;
    }

    .home-card {
        padding: 22px 20px;
    }

    body > h1.page-title-surface {
        padding-right: 20px !important;
        gap: 14px;
    }

    body > h1.page-title-surface .page-title__emblem,
    .page-title__emblem {
        width: 60px;
        height: 60px;
    }

    body > h1.page-title-surface .page-title__emblem {
        flex-basis: 60px;
    }

    .home-card--accent.page-title-surface {
        padding-right: 20px !important;
        grid-template-columns: minmax(0, 1fr) 66px;
        column-gap: 14px;
    }

    .hero.page-title-surface {
        padding-right: 94px !important;
    }

    .hero.page-title-surface .page-title__emblem {
        right: 16px !important;
    }

    .page-title__emblem--themed {
        padding: 0;
    }
}

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

@media print {
    .site-banner {
        min-height: auto;
        border-bottom: 2px solid #333;
        background: none;
        box-shadow: none;
    }

    .site-banner__inner {
        min-height: auto;
        padding: 18px 0;
    }

    .site-banner__eyebrow,
    .site-banner__brand,
    .site-banner__page {
        color: #111 !important;
        text-shadow: none;
    }

    .site-banner__nav,
    .site-banner__shade {
        display: none;
    }
}