:root {
    color-scheme: light;
    --m-bg: #f5f3ed;
    --m-paper: #fffefa;
    --m-paper2: #efede5;
    --m-ink: #192326;
    --m-muted: #647074;
    --m-line: #d9d6cc;
    --m-shadow: 0 16px 48px rgba(29, 37, 39, .09);
    --m-sans: "Inter", "Avenir Next", sans-serif;
    --m-serif: "DM Serif Display", "Iowan Old Style", Georgia, serif;
    --m-mono: "JetBrains Mono", "SFMono-Regular", monospace
}

html[data-theme="dark"] {
    color-scheme: dark;
    --m-bg: #101718;
    --m-paper: #192223;
    --m-paper2: #222d2e;
    --m-ink: #f2efe7;
    --m-muted: #a9b4b2;
    --m-line: #344143;
    --m-shadow: 0 18px 54px rgba(0, 0, 0, .28)
}

.cs285-content {
    --topic: #245f8e;
    --topic-rgb: 36, 95, 142;
    --topic2: #cf7942;
    --soft: rgba(var(--topic-rgb), .11);
    --max: 1500px;
    --gutter: clamp(14px, 3.6vw, 68px);
    margin: 0 !important;
    padding: 0 !important;
    width: 100% !important;
    max-width: 100vw !important;
    min-height: 100vh;
    overflow-x: hidden !important;
    background: radial-gradient(circle at 0 0, var(--soft), transparent 46vw), var(--m-bg) !important;
    color: var(--m-ink) !important;
    font-family: var(--m-sans) !important
}

.cs285-topic-logic {
    --topic: #5c4cac;
    --topic-rgb: 92, 76, 172;
    --topic2: #cf8d2d
}

.cs285-topic-structures {
    --topic: #137d83;
    --topic-rgb: 19, 125, 131;
    --topic2: #6375b8
}

.cs285-topic-crypto {
    --topic: #9a5629;
    --topic-rgb: 154, 86, 41;
    --topic2: #397876
}

.cs285-topic-induction {
    --topic: #267a58;
    --topic-rgb: 38, 122, 88;
    --topic2: #c28b2c
}

.cs285-topic-counting {
    --topic: #34723f;
    --topic-rgb: 52, 114, 63;
    --topic2: #b57927
}

.cs285-topic-advanced-counting {
    --topic: #8c4b9c;
    --topic-rgb: 140, 75, 156;
    --topic2: #35758c
}

.cs285-topic-relations {
    --topic: #316ca0;
    --topic-rgb: 49, 108, 160;
    --topic2: #a74f58
}

.cs285-topic-reference {
    --topic: #334b5b;
    --topic-rgb: 51, 75, 91;
    --topic2: #b66b3d
}

html[data-theme="dark"] .cs285-content {
    --soft: rgba(var(--topic-rgb), .2)
}

.cs285-content * {
    box-sizing: border-box
}

.cs285-content h1,
.cs285-content h2,
.cs285-content h3,
.cs285-content h4 {
    color: var(--m-ink) !important;
    text-shadow: none !important
}

.cs285-content p,
.cs285-content li,
.cs285-content td {
    color: var(--m-muted)
}

.cs285-content a {
    color: var(--topic) !important
}

.cs285-content code,
.cs285-content .formula {
    font-family: var(--m-mono) !important
}

.cs285-bar {
    position: sticky !important;
    top: 0 !important;
    z-index: 9999;
    height: 56px !important;
    min-height: 56px !important;
    padding: 6px var(--gutter) !important;
    display: flex !important;
    align-items: center !important;
    gap: 18px;
    background: color-mix(in srgb, var(--m-paper) 91%, transparent) !important;
    border: 0 !important;
    border-bottom: 1px solid color-mix(in srgb, var(--topic) 24%, var(--m-line)) !important;
    backdrop-filter: blur(16px);
    box-shadow: none !important
}

.cs285-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--m-ink) !important;
    text-decoration: none;
    font-size: 13px;
    font-weight: 800;
    line-height: 1.05
}

.cs285-brand small {
    display: block;
    margin-bottom: 3px;
    color: var(--topic);
    font: 700 8px/1 var(--m-mono);
    letter-spacing: .11em;
    text-transform: uppercase
}

.cs285-mark {
    width: 34px;
    height: 34px;
    display: grid;
    place-items: center;
    border-radius: 10px;
    color: #fff;
    background: linear-gradient(145deg, var(--topic), var(--topic2));
    font: 800 13px/1 var(--m-mono)
}

.cs285-bar nav {
    margin-left: auto;
    display: flex;
    gap: 4px
}

.cs285-bar nav a {
    padding: 8px 10px;
    border-radius: 9px;
    color: var(--m-muted) !important;
    text-decoration: none;
    font-size: 11px;
    font-weight: 700
}

.cs285-bar nav a:hover {
    color: var(--topic) !important;
    background: var(--soft)
}

#cs285-theme {
    width: 36px;
    height: 36px;
    display: grid;
    place-items: center;
    flex: 0 0 auto;
    border: 1px solid var(--m-line);
    border-radius: 11px;
    color: var(--m-ink);
    background: var(--m-paper);
    cursor: pointer
}

#cs285-theme svg {
    width: 17px;
    height: 17px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.8
}

.cs285-bar .sg-page-search {
    flex: 0 1 280px !important;
    width: min(280px, 22vw) !important;
    min-width: 0 !important
}

.cs285-content .sg-theme-toggle,
.cs285-content .theme-toggle,
.cs285-content #themeToggle,
.cs285-content #themeBtn,
.cs285-content [onclick="toggleTheme()"] {
    display: none !important
}

.cs285-content .container {
    width: min(calc(100% - 2 * var(--gutter)), var(--max)) !important;
    max-width: var(--max) !important;
    margin: 0 auto !important;
    padding: clamp(28px, 4vw, 62px) 0 90px !important
}

.cs285-content .content {
    width: 100% !important;
    max-width: none !important;
    margin: 0 !important
}

.cs285-breakdown header:not(.cs285-bar),
.cs285-breakdown .header {
    min-height: clamp(210px, 27vw, 360px) !important;
    display: grid !important;
    align-content: center !important;
    padding: clamp(30px, 6vw, 88px) !important;
    border: 1px solid var(--m-line) !important;
    border-radius: clamp(20px, 3vw, 38px) !important;
    background: linear-gradient(135deg, var(--soft), var(--m-paper) 62%) !important;
    box-shadow: var(--m-shadow) !important
}

.cs285-breakdown h1 {
    max-width: 1100px;
    font: 700 clamp(2.4rem, 5.2vw, 6rem)/.98 var(--m-serif) !important;
    letter-spacing: -.035em !important
}

.cs285-breakdown .subtitle {
    font-size: clamp(1rem, 1.5vw, 1.25rem) !important
}

.cs285-breakdown .toc {
    margin: 22px 0 !important;
    padding: 18px clamp(18px, 3vw, 34px) !important;
    border: 1px solid var(--m-line) !important;
    border-radius: 18px !important;
    background: var(--m-paper) !important;
    box-shadow: none !important
}

.cs285-breakdown .section,
.cs285-breakdown section {
    margin: clamp(16px, 2.5vw, 32px) 0 !important;
    padding: clamp(24px, 4vw, 54px) !important;
    border: 1px solid var(--m-line) !important;
    border-radius: 24px !important;
    background: var(--m-paper) !important;
    box-shadow: var(--m-shadow) !important
}

.cs285-breakdown .section h2,
.cs285-breakdown section h2 {
    font-size: clamp(1.5rem, 2.6vw, 2.5rem) !important
}

.cs285-breakdown .grid,
.cs285-breakdown .grid-2,
.cs285-breakdown .laws-grid {
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)) !important;
    gap: 16px !important
}

.cs285-content .card,
.cs285-content .law-card,
.cs285-content .set-card,
.cs285-content .property-box {
    height: 100%;
    padding: clamp(18px, 2.5vw, 30px) !important;
    border: 1px solid var(--m-line) !important;
    border-top: 4px solid var(--topic) !important;
    border-radius: 17px !important;
    background: var(--m-paper2) !important;
    box-shadow: none !important
}

.cs285-content .definition,
.cs285-content .definition-box,
.cs285-content .theorem-box,
.cs285-content .key-concept,
.cs285-content div.highlight,
.cs285-content .highlight-box,
.cs285-content div.important,
.cs285-content .note,
.cs285-content .warning,
.cs285-content .example,
.cs285-content .example-box,
.cs285-content .formula-box {
    padding: clamp(16px, 2.5vw, 27px) !important;
    border: 1px solid color-mix(in srgb, var(--topic) 32%, var(--m-line)) !important;
    border-left: 4px solid var(--topic) !important;
    border-radius: 0 16px 16px 0 !important;
    background: var(--soft) !important;
    color: var(--m-muted) !important;
    box-shadow: none !important
}

.cs285-content span.highlight,
.cs285-content strong.highlight {
    display: inline !important;
    position: static !important;
    margin: 0 .08em !important;
    padding: .08em .38em !important;
    border: 0 !important;
    border-radius: .38em !important;
    color: var(--topic) !important;
    background: var(--soft) !important;
    box-shadow: none !important;
    font: inherit !important;
    font-weight: 800 !important;
    white-space: normal !important
}

.cs285-content .formula {
    overflow-x: auto;
    color: var(--m-ink) !important;
    background: var(--m-paper2) !important
}

.cs285-content table {
    width: 100% !important;
    border-collapse: separate !important;
    border-spacing: 0 !important;
    overflow: hidden;
    border: 1px solid var(--m-line) !important;
    border-radius: 16px !important;
    background: var(--m-paper) !important
}

.cs285-content th {
    color: var(--m-ink) !important;
    background: var(--soft) !important
}

.cs285-content th,
.cs285-content td {
    padding: 12px 14px !important;
    border-color: var(--m-line) !important
}

.cs285-reference {
    --max: 1700px
}

.cs285-reference .container {
    padding-top: clamp(20px, 3vw, 42px) !important
}

.cs285-reference header:not(.cs285-bar),
.cs285-reference .header {
    padding: clamp(25px, 4vw, 52px) !important;
    border-radius: 24px !important;
    background: linear-gradient(135deg, var(--topic), color-mix(in srgb, var(--topic2) 70%, #172126)) !important
}

.cs285-reference header:not(.cs285-bar) *,
.cs285-reference .header * {
    color: #fff !important
}

.cs285-reference .grid {
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)) !important;
    gap: 14px !important
}

.cs285-reference .section {
    padding: clamp(20px, 3vw, 38px) !important;
    border: 1px solid var(--m-line) !important;
    border-radius: 20px !important;
    background: var(--m-paper) !important
}

.cs285-reference .card {
    break-inside: avoid
}

@keyframes cs285-in {
    from {
        opacity: 0;
        transform: translateY(10px)
    }

    to {
        opacity: 1;
        transform: none
    }
}

.cs285-ready .container>* {
    animation: cs285-in .5s cubic-bezier(.2, .7, .2, 1) both
}

.cs285-ready .container>*:nth-child(2) {
    animation-delay: .05s
}

.cs285-ready .container>*:nth-child(3) {
    animation-delay: .1s
}

@media(min-width:1500px) {

    .cs285-breakdown .content>.section:has(.grid),
    .cs285-breakdown .content>section:has(.grid) {
        padding-inline: 64px !important
    }

    .cs285-reference .grid {
        grid-template-columns: repeat(4, minmax(0, 1fr)) !important
    }
}

@media(max-width:900px) {
    .cs285-content {
        --gutter: clamp(12px, 3vw, 24px)
    }

    .cs285-bar nav a:first-child {
        display: none
    }

    .cs285-breakdown header:not(.cs285-bar),
    .cs285-breakdown .header {
        min-height: 210px !important;
        padding: 34px !important
    }
}

@media(max-width:600px) {
    .cs285-content * {
        min-width: 0
    }

    .cs285-content .container,
    .cs285-content .content,
    .cs285-content main,
    .cs285-content article,
    .cs285-content section,
    .cs285-content header:not(.cs285-bar),
    .cs285-content .header,
    .cs285-content .toc {
        width: auto !important;
        max-width: 100% !important
    }

    .cs285-content h1,
    .cs285-content h2,
    .cs285-content h3,
    .cs285-content p,
    .cs285-content li {
        overflow-wrap: anywhere
    }

    .cs285-content .toc li,
    .cs285-content .toc a {
        font-size: 14px !important;
        line-height: 1.45 !important
    }

    .cs285-bar {
        height: 52px !important;
        min-height: 52px !important;
        padding: 5px 10px !important
    }

    .cs285-brand {
        max-width: calc(100vw - 70px)
    }

    .cs285-brand>span:last-child {
        display: block;
        overflow: hidden;
        white-space: nowrap;
        text-overflow: ellipsis
    }

    .cs285-bar nav {
        display: none !important
    }

    .cs285-bar .sg-page-search {
        display: none !important
    }

    #cs285-theme {
        margin-left: auto
    }

    .cs285-breakdown header:not(.cs285-bar),
    .cs285-breakdown .header {
        min-height: 170px !important;
        padding: 20px !important;
        border-radius: 20px !important
    }

    .cs285-breakdown h1 {
        font-size: clamp(1.75rem, 8.5vw, 2.7rem) !important;
        line-height: 1.02 !important
    }

    .cs285-breakdown .section,
    .cs285-breakdown section,
    .cs285-reference .section {
        padding: 20px !important;
        border-radius: 18px !important
    }

    .cs285-content table {
        display: block;
        overflow-x: auto
    }

    .cs285-content .grid,
    .cs285-content .grid-2,
    .cs285-content .laws-grid {
        grid-template-columns: minmax(0, 1fr) !important
    }
}

@media(prefers-reduced-motion:reduce) {
    * {
        animation-duration: .01ms !important;
        transition-duration: .01ms !important
    }
}

/* Complete CS285 shell — replaces the inherited purple terminal UI. */
.cs285-shell {
    --max: 1600px;
    background: var(--m-bg) !important
}

.cs285-shell .shoug-site-header,
.cs285-shell .global-header,
.cs285-shell .site-header {
    display: none !important
}

.cs285-shell .shoug-site-footer {
    background: var(--m-paper) !important;
    border: 0 !important;
    border-top: 1px solid var(--m-line) !important;
    color: var(--m-muted) !important;
    box-shadow: none !important
}

.cs285-shell .shoug-footer-brand,
.cs285-shell .shoug-footer-link,
.cs285-shell .shoug-footer-meta,
.cs285-shell .shoug-footer-text,
.cs285-shell .shoug-footer-label {
    color: var(--m-muted) !important
}

.cs285-shell .shoug-footer-brand {
    color: var(--m-ink) !important
}

.cs285-shell .app-layout,
.cs285-shell .layout-wrapper {
    display: flex !important;
    width: 100% !important;
    min-height: calc(100vh - 56px) !important;
    height: auto !important;
    overflow: visible !important;
    background: transparent !important
}

.cs285-shell .sidebar,
.cs285-shell .academic-sidebar {
    position: sticky !important;
    top: 56px !important;
    z-index: 30 !important;
    width: 272px !important;
    min-width: 272px !important;
    flex: 0 0 272px !important;
    height: calc(100vh - 56px) !important;
    padding: 18px 12px !important;
    overflow: auto !important;
    background: color-mix(in srgb, var(--m-paper) 92%, transparent) !important;
    border: 0 !important;
    border-right: 1px solid var(--m-line) !important;
    box-shadow: none !important
}

.cs285-shell .sidebar-header {
    height: auto !important;
    padding: 6px 9px 14px !important;
    border: 0 !important;
    background: transparent !important
}

.cs285-shell .sidebar-title {
    color: var(--topic) !important;
    font: 750 9px/1 var(--m-mono) !important;
    letter-spacing: .13em !important
}

.cs285-shell .sidebar-collapse-button {
    color: var(--m-muted) !important;
    background: var(--m-paper2) !important;
    border: 1px solid var(--m-line) !important;
    border-radius: 8px !important
}

.cs285-shell .file-tree,
.cs285-shell .tree-node,
.cs285-shell .tree-children {
    background: transparent !important;
    border: 0 !important
}

.cs285-shell .tree-item {
    margin: 2px 0 !important
}

.cs285-shell .tree-file,
.cs285-shell .tree-course-link {
    min-height: 31px !important;
    padding: 7px 9px !important;
    border: 0 !important;
    border-radius: 8px !important;
    color: var(--m-muted) !important;
    background: transparent !important;
    font: 560 11px/1.35 var(--m-sans) !important;
    letter-spacing: 0 !important;
    text-transform: none !important
}

.cs285-shell .tree-file:hover,
.cs285-shell .tree-course-link:hover {
    color: var(--m-ink) !important;
    background: var(--m-paper2) !important
}

.cs285-shell .file-active>.tree-file,
.cs285-shell .tree-file.active {
    color: var(--topic) !important;
    background: var(--soft) !important;
    font-weight: 750 !important
}

.cs285-shell .tree-toggle {
    color: var(--topic) !important;
    background: none !important
}

.cs285-shell .status-dot {
    background: var(--topic) !important;
    box-shadow: none !important
}

.cs285-shell .tree-children {
    margin-left: 8px !important;
    padding-left: 8px !important;
    border-left: 1px solid var(--m-line) !important
}

.cs285-shell .main-wrapper,
.cs285-shell .sys-main,
.cs285-shell .content-area {
    width: auto !important;
    min-width: 0 !important;
    max-width: none !important;
    flex: 1 !important;
    height: auto !important;
    min-height: calc(100vh - 56px) !important;
    overflow: visible !important;
    background: transparent !important;
    color: var(--m-ink) !important
}

.cs285-shell .top-bar,
.cs285-shell .content-topbar {
    position: sticky !important;
    top: 56px !important;
    z-index: 20 !important;
    min-height: 46px !important;
    height: auto !important;
    padding: 9px clamp(18px, 3vw, 48px) !important;
    background: color-mix(in srgb, var(--m-bg) 90%, transparent) !important;
    border: 0 !important;
    border-bottom: 1px solid var(--m-line) !important;
    backdrop-filter: blur(14px)
}

.cs285-shell .breadcrumb,
.cs285-shell .breadcrumb a,
.cs285-shell .breadcrumb-link,
.cs285-shell .current,
.cs285-shell .sys-time {
    color: var(--m-muted) !important;
    font: 600 10px/1.5 var(--m-mono) !important;
    text-transform: none !important
}

.cs285-shell .separator,
.cs285-shell .meta-sep {
    color: var(--topic) !important
}

.cs285-shell .page-container,
.cs285-shell .directory-container {
    width: min(100%, 1600px) !important;
    max-width: 1600px !important;
    margin: 0 auto !important;
    padding: clamp(34px, 5vw, 74px) clamp(20px, 4vw, 68px) 90px !important;
    overflow: visible !important;
    background: transparent !important
}

.cs285-shell .content-scroll-area {
    height: auto !important;
    overflow: visible !important;
    background: transparent !important
}

.cs285-shell .content-header,
.cs285-shell .course-header,
.cs285-shell .page-header {
    padding: clamp(28px, 5vw, 68px) !important;
    border: 1px solid var(--m-line) !important;
    border-radius: clamp(20px, 3vw, 34px) !important;
    background: linear-gradient(135deg, var(--soft), var(--m-paper) 64%) !important;
    color: var(--m-ink) !important;
    box-shadow: var(--m-shadow) !important
}

.cs285-shell .course-code {
    font: 800 clamp(4.2rem, 9vw, 8rem)/.85 var(--m-serif) !important;
    letter-spacing: -.05em !important;
    color: var(--m-ink) !important
}

.cs285-shell .course-code::after {
    content: ".";
    color: var(--topic)
}

.cs285-shell .course-name,
.cs285-shell .content-header h1,
.cs285-shell .page-header .ch-title {
    font: 700 clamp(1.8rem, 3.5vw, 3.7rem)/1.04 var(--m-serif) !important;
    letter-spacing: -.035em !important;
    color: var(--m-ink) !important;
    text-transform: none !important
}

.cs285-shell .course-desc-brief {
    max-width: 850px !important;
    margin-top: 15px !important;
    color: var(--m-muted) !important;
    font-size: clamp(1rem, 1.4vw, 1.18rem) !important;
    line-height: 1.75 !important
}

.cs285-shell .sub-nav,
.cs285-shell .content-tabs,
.cs285-shell .nav-strip {
    display: flex !important;
    gap: 5px !important;
    margin: 18px 0 !important;
    padding: 5px !important;
    border: 1px solid var(--m-line) !important;
    border-radius: 13px !important;
    background: var(--m-paper2) !important
}

.cs285-shell .sub-nav-item,
.cs285-shell .tab,
.cs285-shell .nav-link {
    padding: 9px 12px !important;
    border: 0 !important;
    border-radius: 8px !important;
    color: var(--m-muted) !important;
    background: transparent !important;
    font: 650 11px/1.3 var(--m-sans) !important;
    letter-spacing: 0 !important;
    text-transform: none !important
}

.cs285-shell .sub-nav-item:hover,
.cs285-shell .sub-nav-item.active,
.cs285-shell .tab:hover,
.cs285-shell .tab.active,
.cs285-shell .nav-link:hover {
    color: #fff !important;
    background: var(--topic) !important
}

.cs285-shell .grid-data-blocks {
    display: grid !important;
    grid-template-columns: repeat(3, minmax(0, 1fr)) !important;
    gap: 12px !important
}

.cs285-shell .data-block,
.cs285-shell .meta-panel,
.cs285-shell .topic-item,
.cs285-shell .dir-row {
    border: 1px solid var(--m-line) !important;
    border-radius: 17px !important;
    background: var(--m-paper) !important;
    color: var(--m-ink) !important;
    box-shadow: none !important
}

.cs285-shell .data-block {
    padding: 19px !important
}

.cs285-shell .data-block-label,
.cs285-shell .meta-key,
.cs285-shell .section-label {
    color: var(--topic) !important;
    font: 750 9px/1.4 var(--m-mono) !important;
    letter-spacing: .1em !important;
    text-transform: uppercase !important
}

.cs285-shell .data-block-val,
.cs285-shell .meta-val {
    color: var(--m-ink) !important
}

.cs285-shell .section-label {
    margin: 44px 0 16px !important;
    border: 0 !important
}

.cs285-shell .topic-item,
.cs285-shell .dir-row {
    min-height: 70px !important;
    margin: 9px 0 !important;
    padding: 15px 18px !important
}

.cs285-shell .topic-item:hover,
.cs285-shell .dir-row:hover {
    transform: translateY(-2px);
    border-color: var(--topic) !important;
    box-shadow: var(--m-shadow) !important
}

.cs285-shell .topic-num,
.cs285-shell .dir-num,
.cs285-shell .dir-arrow {
    color: var(--topic) !important
}

.cs285-shell .topic-name,
.cs285-shell .dir-title {
    color: var(--m-ink) !important;
    font-weight: 700 !important
}

.cs285-shell .topic-meta,
.cs285-shell .type-label {
    color: var(--m-muted) !important
}

.cs285-shell .meta-panel-container {
    width: min(100%, 320px) !important
}

.cs285-shell .meta-panel {
    overflow: hidden !important;
    box-shadow: var(--m-shadow) !important
}

.cs285-shell .meta-header,
.cs285-shell .meta-footer {
    background: var(--m-paper2) !important;
    border-color: var(--m-line) !important
}

.cs285-shell .quick-link-btn,
.cs285-shell .btn {
    border: 1px solid var(--m-line) !important;
    border-radius: 10px !important;
    color: var(--m-ink) !important;
    background: var(--m-paper2) !important;
    box-shadow: none !important;
    text-transform: none !important
}

.cs285-shell .quick-link-btn:hover,
.cs285-shell .btn:hover {
    border-color: var(--topic) !important;
    color: var(--topic) !important;
    transform: translateY(-2px)
}

.cs285-shell .btn-primary {
    color: #fff !important;
    border-color: var(--topic) !important;
    background: var(--topic) !important
}

.cs285-shell .embed-area-wrapper {
    padding: 0 clamp(16px, 3vw, 48px) clamp(32px, 5vw, 70px) !important;
    background: transparent !important;
    border: 0 !important
}

.cs285-shell .embed-container {
    width: 100% !important;
    height: calc(100vh - 205px) !important;
    min-height: 620px !important;
    overflow: hidden !important;
    border: 1px solid var(--m-line) !important;
    border-radius: 22px !important;
    background: var(--m-paper) !important;
    box-shadow: var(--m-shadow) !important
}

.cs285-shell .embed-frame,
.cs285-shell .legacy-html-frame,
.cs285-shell .pdf-embed,
.cs285-shell iframe {
    width: 100% !important;
    height: 100% !important;
    border: 0 !important;
    background: var(--m-paper) !important
}

.cs285-shell .page-header {
    margin: 18px clamp(16px, 3vw, 48px) !important;
    padding: 22px clamp(20px, 3vw, 42px) !important;
    border-radius: 20px !important;
    box-shadow: none !important
}

.cs285-shell .page-header .ch-title {
    font-size: clamp(1.4rem, 2.3vw, 2.4rem) !important
}

.cs285-shell .page-header .ch-label {
    color: var(--topic) !important
}

.cs285-shell .action-buttons {
    gap: 8px !important
}

.cs285-shell .rendered-content {
    width: 100% !important;
    height: 100% !important;
    padding: 0 !important;
    background: var(--m-paper) !important
}

.cs285-shell .slide-assistant-launch {
    border: 1px solid var(--m-line) !important;
    border-radius: 11px !important;
    color: var(--m-ink) !important;
    background: var(--m-paper) !important;
    box-shadow: var(--m-shadow) !important
}

.cs285-embedded {
    min-height: 100vh !important
}

.cs285-embedded .container {
    width: min(calc(100% - 28px), var(--max)) !important;
    padding-top: 24px !important
}

@media(max-width:900px) {

    .cs285-shell .sidebar,
    .cs285-shell .academic-sidebar {
        display: none !important
    }

    .cs285-shell .page-container,
    .cs285-shell .directory-container {
        padding: 28px 16px 70px !important
    }

    .cs285-shell .grid-data-blocks {
        grid-template-columns: 1fr !important
    }

    .cs285-shell .meta-panel-container {
        width: 100% !important;
        max-width: none !important
    }

    .cs285-shell .embed-container {
        height: calc(100vh - 190px) !important;
        min-height: 520px !important
    }
}

@media(max-width:600px) {

    .cs285-shell,
    .cs285-shell .app-layout,
    .cs285-shell .layout-wrapper,
    .cs285-shell .content-area,
    .cs285-shell .main-wrapper,
    .cs285-shell .sys-main {
        width: 100% !important;
        max-width: 100vw !important;
        min-width: 0 !important;
        overflow-x: hidden !important
    }

    .cs285-shell .top-bar,
    .cs285-shell .content-topbar {
        display: none !important
    }

    .cs285-shell .content-header,
    .cs285-shell .course-header,
    .cs285-shell .page-header {
        padding: 20px !important;
        border-radius: 18px !important
    }

    .cs285-shell .page-header .ch-title {
        font-size: clamp(1.55rem, 8vw, 2.25rem) !important;
        line-height: 1.05 !important;
        overflow-wrap: anywhere !important
    }

    .cs285-shell .course-code {
        font-size: clamp(3.7rem, 22vw, 5.4rem) !important
    }

    .cs285-shell .action-buttons {
        display: flex !important;
        flex-wrap: wrap !important
    }

    .cs285-shell .action-buttons .btn {
        flex: 1 1 145px !important;
        padding: 10px 12px !important;
        white-space: normal !important
    }

    .cs285-shell .sub-nav,
    .cs285-shell .content-tabs,
    .cs285-shell .nav-strip {
        width: calc(100% - 20px) !important;
        margin: 12px 10px !important;
        overflow-x: auto !important;
        flex-wrap: nowrap !important
    }

    .cs285-shell .embed-area-wrapper {
        width: 100% !important;
        padding: 0 10px 24px !important
    }

    .cs285-shell .embed-container {
        width: 100% !important;
        height: calc(100vh - 255px) !important;
        min-height: 500px !important;
        border-radius: 15px !important
    }

    .cs285-shell .page-header {
        width: calc(100% - 20px) !important;
        margin: 12px 10px !important
    }

    .cs285-shell .shoug-site-footer {
        display: none !important
    }

    .cs285-embedded .container {
        width: calc(100% - 16px) !important;
        padding-top: 8px !important
    }
}

@media(max-width:600px) {

    .cs285-shell .page-header .ch-title,
    .cs285-shell .page-header h1,
    .cs285-embedded header h1,
    .cs285-embedded .header h1 {
        width: 100% !important;
        max-width: 100% !important;
        white-space: normal !important;
        word-break: break-word !important;
        overflow-wrap: anywhere !important
    }

    .cs285-shell .action-buttons .btn {
        width: auto !important;
        max-width: 100% !important;
        min-width: 0 !important;
        font-size: 10px !important
    }

    .cs285-embedded header:not(.cs285-bar),
    .cs285-embedded .header {
        width: 100% !important;
        max-width: 100% !important;
        padding: 18px 14px !important
    }

    .cs285-embedded header h1,
    .cs285-embedded .header h1 {
        font-size: clamp(1.7rem, 7.6vw, 2.3rem) !important
    }

    .cs285-embedded .sg-page-search {
        display: none !important
    }
}

@media(max-width:600px) {
    html:has(body.cs285-content) {
        width: 100% !important;
        max-width: 100vw !important;
        overflow-x: hidden !important
    }

    .cs285-shell *,
    .cs285-embedded * {
        min-width: 0 !important;
        box-sizing: border-box !important
    }

    .cs285-shell .page-header,
    .cs285-shell .action-buttons,
    .cs285-shell .embed-area-wrapper,
    .cs285-shell .embed-container,
    .cs285-embedded .container,
    .cs285-embedded header:not(.cs285-bar) {
        max-width: 100% !important;
        overflow-x: hidden !important
    }

    .cs285-shell .page-header .ch-title {
        font-size: clamp(1.35rem, 6.8vw, 1.9rem) !important
    }

    .cs285-embedded header h1,
    .cs285-embedded .header h1 {
        font-size: clamp(1.55rem, 6.8vw, 2rem) !important
    }
}

/* Final component reset: no legacy yellow, purple, blue, green, or white panels. */
.cs285-content .section h2,
.cs285-content section h2 {
    color: var(--m-ink) !important;
    border-color: var(--topic) !important
}

.cs285-content .section h3,
.cs285-content section h3,
.cs285-content .example h4,
.cs285-content .example-title,
.cs285-content .key-points h4,
.cs285-content .analogy h4,
.cs285-content .domino-visual h4 {
    color: var(--topic) !important
}

.cs285-content .concept-box,
.cs285-content .step,
.cs285-content .proof-step,
.cs285-content .recursive-example,
.cs285-content .key-points,
.cs285-content .analogy,
.cs285-content .domino-visual,
.cs285-content .calculation,
.cs285-content .solution,
.cs285-content .inference-rule,
.cs285-content .visual-rep {
    position: relative !important;
    margin: 16px 0 !important;
    padding: clamp(17px, 2.4vw, 28px) !important;
    border: 1px solid var(--m-line) !important;
    border-radius: 16px !important;
    background: var(--m-paper2) !important;
    background-image: none !important;
    color: var(--m-muted) !important;
    box-shadow: none !important
}

.cs285-content .analogy {
    border-left: 4px solid var(--topic2) !important;
    background: color-mix(in srgb, var(--topic2) 9%, var(--m-paper)) !important
}

.cs285-content .domino-visual {
    border-color: color-mix(in srgb, var(--topic) 30%, var(--m-line)) !important;
    background: linear-gradient(135deg, var(--soft), color-mix(in srgb, var(--topic2) 8%, var(--m-paper))) !important;
    text-align: left !important
}

.cs285-content .step,
.cs285-content .proof-step {
    border-left: 4px solid var(--topic) !important
}

.cs285-content .step-label {
    color: var(--topic) !important
}

.cs285-content .proof-step {
    padding-left: 58px !important
}

.cs285-content .proof-step::before {
    left: 18px !important;
    top: 20px !important;
    width: 27px !important;
    height: 27px !important;
    color: #fff !important;
    background: var(--topic) !important;
    box-shadow: none !important
}

.cs285-content .key-points {
    border-left: 4px solid var(--topic2) !important
}

.cs285-content .key-points li::before {
    color: var(--topic) !important
}

.cs285-content .recursive-example {
    border-left: 4px solid var(--topic2) !important
}

.cs285-content .calculation,
.cs285-content code {
    color: var(--m-ink) !important;
    background: color-mix(in srgb, var(--topic) 10%, var(--m-paper2)) !important
}

.cs285-content .footer {
    margin-top: 34px !important;
    padding: 28px !important;
    color: var(--m-muted) !important;
    background: var(--m-paper2) !important;
    border-top: 1px solid var(--m-line) !important
}

.cs285-content .footer * {
    color: var(--m-muted) !important
}

.cs285-content tr:hover {
    background: var(--soft) !important
}

.cs285-content .pascal-row span,
.cs285-content .symbol,
.cs285-content .notation {
    color: var(--topic) !important;
    border-color: var(--m-line) !important;
    background: var(--soft) !important
}

.cs285-content span.important,
.cs285-content strong.important {
    display: inline !important;
    padding: .08em .38em !important;
    color: var(--topic) !important;
    background: var(--soft) !important;
    border: 0 !important;
    border-radius: .38em !important
}