/* hamming-codes.html — tabs, static grids, lab, rough notes */
.note_span {
color: var(--moss);
}
.post-tabs {
display: flex;
gap: 0.35rem;
margin: 0 0 1.75rem;
padding: 0.25rem;
border: 1px solid var(--line);
border-radius: 10px;
background: color-mix(in srgb, var(--panel) 70%, transparent);
}
.post-tabs__btn {
flex: 1;
padding: 0.55rem 0.85rem;
border: none;
border-radius: 7px;
background: transparent;
color: var(--muted);
font-family: var(--mono);
font-size: 12px;
cursor: pointer;
transition: background 0.15s, color 0.15s;
}
.post-tabs__btn[aria-selected="true"] {
background: var(--panel);
color: var(--ink);
box-shadow: 0 1px 0 var(--line);
}
.post-tabs__btn:focus-visible {
outline: 2px solid var(--accent);
outline-offset: 2px;
}
/* which tab panel shows is driven by , set before the first
paint by pre-paint.js, so reloading on the notes / c++ tab no longer flashes
the article tab first. No-JS (attribute absent) falls back to the article. */
.post-tab-panel { display: none; }
.post-tab-panel[hidden] { display: none; }
html[data-post-tab="article"] .post-tab-panel[data-panel="article"],
html[data-post-tab="notes"] .post-tab-panel[data-panel="notes"],
html[data-post-tab="cpp"] .post-tab-panel[data-panel="cpp"] { display: block; }
html:not([data-post-tab]) .post-tab-panel[data-panel="article"] { display: block; }
/* ── inline callout notes ── */
.hamming-note {
position: relative;
margin: 1.75rem 0;
padding: 1rem 1.1rem 1.05rem;
border: 1px solid color-mix(in srgb, var(--accent) 28%, var(--line));
border-radius: 10px;
background:
linear-gradient(135deg, color-mix(in srgb, var(--accent) 7%, var(--panel)) 0%, color-mix(in srgb, var(--panel) 80%, transparent) 100%);
box-shadow: 0 4px 18px color-mix(in srgb, var(--accent) 6%, transparent);
}
[data-theme="dark"] .hamming-note {
background:
linear-gradient(135deg, color-mix(in srgb, var(--accent) 10%, var(--panel)) 0%, color-mix(in srgb, var(--panel) 70%, transparent) 100%);
box-shadow: 0 6px 22px rgba(0, 0, 0, 0.28);
}
.hamming-note__tag {
display: inline-block;
margin-bottom: 0.55rem;
padding: 0.12rem 0.45rem;
border: 1px solid color-mix(in srgb, var(--accent) 35%, var(--line));
border-radius: 5px;
background: color-mix(in srgb, var(--panel) 90%, transparent);
font-family: var(--mono);
font-size: 10px;
font-weight: 500;
letter-spacing: 0.08em;
text-transform: uppercase;
color: var(--accent);
}
.hamming-note__body {
margin: 0;
font-family: var(--mono);
font-size: 13px;
line-height: 1.6;
color: var(--soft);
}
.hamming-note__body strong {
color: var(--ink);
font-weight: 600;
}
/* ── static bit grids (replaces clipped SVGs) ── */
.hamming-figure {
margin: 1.75rem 0;
}
.hamming-figure figcaption {
margin-top: 0.65rem;
font-family: var(--mono);
font-size: 12px;
color: var(--muted);
}
.hamming-compare {
display: flex;
flex-wrap: wrap;
align-items: center;
justify-content: center;
gap: 1rem 1.25rem;
}
.hamming-compare__label {
display: block;
margin-bottom: 0.5rem;
font-family: var(--mono);
font-size: 11px;
color: var(--muted);
}
.hamming-compare__arrow {
font-family: var(--mono);
font-size: 1.25rem;
color: var(--muted);
opacity: 0.6;
}
.hamming-grid {
display: grid;
grid-template-columns: repeat(4, 2.5rem);
gap: 3px;
}
.hamming-grid__cell {
display: flex;
align-items: center;
justify-content: center;
aspect-ratio: 1;
border: 1px solid color-mix(in srgb, var(--soft) 35%, transparent);
border-radius: 4px;
font-family: var(--mono);
font-size: 14px;
color: var(--soft);
background: color-mix(in srgb, var(--panel) 40%, transparent);
}
.hamming-grid__cell--parity {
background: color-mix(in srgb, var(--accent) 12%, transparent);
border-color: color-mix(in srgb, var(--accent) 35%, transparent);
font-size: 11px;
}
.hamming-grid__cell--set {
background: color-mix(in srgb, var(--accent) 28%, transparent);
border-color: color-mix(in srgb, var(--accent) 55%, transparent);
font-weight: 500;
}
.hamming-grid__cell--master {
background: color-mix(in srgb, var(--accent) 18%, transparent);
}
.hamming-grid--labeled .hamming-grid__cell {
flex-direction: column;
gap: 1px;
font-size: 13px;
}
.hamming-grid__tag {
font-size: 9px;
color: var(--muted);
line-height: 1;
}
.hamming-grid__idx {
font-size: 9px;
color: var(--muted);
opacity: 0.65;
line-height: 1;
}
.hamming-grid__cell--shade {
background: color-mix(in srgb, var(--accent) 22%, transparent);
border-color: color-mix(in srgb, var(--accent) 40%, transparent);
}
.hamming-check-pair {
display: flex;
flex-wrap: wrap;
gap: 1.25rem 2rem;
margin: 0.75rem 0 0;
}
.hamming-check-pair__item {
flex: 0 0 auto;
}
.hamming-lab {
margin: 2rem 0;
padding: 1.15rem 1.2rem 1.25rem;
border: 1px solid var(--line);
border-radius: 12px;
background: color-mix(in srgb, var(--panel) 55%, transparent);
}
.hamming-lab__head {
margin-bottom: 1rem;
}
.hamming-lab__head h3 {
margin: 0 0 0.35rem;
font-family: var(--mono);
font-size: 0.95rem;
font-weight: 500;
color: var(--ink);
}
.hamming-lab__head p {
margin: 0;
font-size: 13px;
}
.hamming-lab__modes {
display: flex;
gap: 0.35rem;
margin-bottom: 0.85rem;
}
.hamming-lab__mode {
padding: 0.4rem 0.65rem;
border: 1px solid var(--line);
border-radius: 6px;
background: transparent;
color: var(--muted);
font-family: var(--mono);
font-size: 11px;
cursor: pointer;
}
.hamming-lab__mode[aria-selected="true"] {
background: color-mix(in srgb, var(--accent) 12%, transparent);
border-color: color-mix(in srgb, var(--accent) 35%, transparent);
color: var(--ink);
}
.hamming-lab__guide {
margin-bottom: 1rem;
padding: 0.75rem 0.85rem;
border: 1px solid color-mix(in srgb, var(--accent) 25%, var(--line));
border-radius: 8px;
background: color-mix(in srgb, var(--accent) 6%, transparent);
}
.hamming-lab__guide-meta {
display: flex;
align-items: center;
justify-content: space-between;
gap: 0.5rem;
margin-bottom: 0.45rem;
}
.hamming-lab__guide-step {
font-family: var(--mono);
font-size: 10px;
color: var(--muted);
}
.hamming-lab__guide-dots {
display: flex;
gap: 3px;
}
.hamming-lab__guide-dot {
width: 5px;
height: 5px;
border-radius: 50%;
background: var(--line);
}
.hamming-lab__guide-dot--on {
background: color-mix(in srgb, var(--accent) 70%, transparent);
}
.hamming-lab__guide-dot--done {
background: color-mix(in srgb, #a6da95 70%, transparent);
}
.hamming-lab__guide-text {
margin: 0 0 0.6rem;
font-size: 13px;
color: var(--soft);
line-height: 1.5;
}
.hamming-lab__cell--spotlight {
border-color: color-mix(in srgb, var(--accent) 75%, transparent);
box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent) 30%, transparent);
}
.hamming-lab__btn--spotlight {
border-color: color-mix(in srgb, var(--accent) 65%, transparent);
color: var(--ink);
animation: hamming-pulse 1.2s ease-in-out infinite;
}
.hamming-lab--guide .hamming-lab__actions [data-action]:not(.hamming-lab__btn--spotlight),
.hamming-lab--video .hamming-lab__actions [data-action]:not(.hamming-lab__btn--spotlight) {
opacity: 0.35;
pointer-events: none;
}
/* ── interactive video player ── */
.hamming-lab__video {
margin-bottom: 1rem;
padding: 0.75rem 0.85rem;
border: 1px solid var(--line);
border-radius: 8px;
background: color-mix(in srgb, var(--bg) 70%, transparent);
}
.hamming-lab__video-controls {
display: flex;
align-items: center;
gap: 0.5rem;
margin-bottom: 0.55rem;
}
.hamming-lab__video-btn {
flex-shrink: 0;
width: 1.85rem;
height: 1.85rem;
padding: 0;
border: 1px solid var(--line);
border-radius: 6px;
background: var(--panel);
color: var(--soft);
font-family: var(--mono);
font-size: 11px;
line-height: 1;
cursor: pointer;
}
.hamming-lab__video-btn:hover {
border-color: color-mix(in srgb, var(--accent) 45%, transparent);
color: var(--ink);
}
.hamming-lab__video-btn[aria-pressed="true"] {
background: color-mix(in srgb, var(--accent) 15%, transparent);
border-color: color-mix(in srgb, var(--accent) 40%, transparent);
}
.hamming-lab__video-track {
flex: 1;
height: 6px;
border-radius: 3px;
background: var(--line);
cursor: pointer;
overflow: hidden;
}
.hamming-lab__video-fill {
height: 100%;
width: 0%;
border-radius: 3px;
background: color-mix(in srgb, var(--accent) 65%, transparent);
transition: width 0.25s linear;
}
.hamming-lab__video-time {
flex-shrink: 0;
font-family: var(--mono);
font-size: 10px;
color: var(--muted);
min-width: 2.5rem;
text-align: right;
}
.hamming-lab__video-caption {
margin: 0;
font-size: 13px;
color: var(--soft);
line-height: 1.5;
}
.hamming-lab__video-hint {
margin: 0.45rem 0 0;
font-family: var(--mono);
font-size: 11px;
color: color-mix(in srgb, var(--accent) 80%, var(--muted));
}
.hamming-lab__cell--flash {
animation: hamming-flash 0.45s ease-out;
}
@keyframes hamming-flash {
0% { background: color-mix(in srgb, var(--accent) 45%, transparent); }
100% { background: transparent; }
}
.hamming-lab__body {
display: flex;
flex-wrap: wrap;
gap: 1.25rem;
align-items: flex-start;
}
.hamming-lab__grid-wrap {
flex: 0 0 auto;
}
.hamming-lab__grid {
display: grid;
grid-template-columns: repeat(4, 2.75rem);
gap: 4px;
}
.hamming-lab__cell {
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
gap: 1px;
aspect-ratio: 1;
padding: 0;
border: 1px solid color-mix(in srgb, var(--soft) 35%, transparent);
border-radius: 5px;
background: color-mix(in srgb, var(--panel) 50%, transparent);
color: var(--soft);
font-family: var(--mono);
font-size: 15px;
cursor: pointer;
transition: background 0.12s, border-color 0.12s, transform 0.1s;
}
.hamming-lab__cell:hover:not(:disabled) {
border-color: color-mix(in srgb, var(--accent) 50%, transparent);
}
.hamming-lab__cell:active:not(:disabled) {
transform: scale(0.94);
}
.hamming-lab__cell:disabled {
cursor: default;
opacity: 0.85;
}
.hamming-lab__cell--parity {
background: color-mix(in srgb, var(--accent) 10%, transparent);
font-size: 11px;
}
.hamming-lab__cell--locked {
cursor: not-allowed;
}
.hamming-lab__cell--error {
background: color-mix(in srgb, #e06c75 35%, transparent);
border-color: #e06c75;
animation: hamming-pulse 1.2s ease-in-out infinite;
}
.hamming-lab__cell--fixed {
background: color-mix(in srgb, #a6da95 30%, transparent);
border-color: #a6da95;
}
@keyframes hamming-pulse {
0%, 100% { box-shadow: 0 0 0 0 transparent; }
50% { box-shadow: 0 0 0 2px color-mix(in srgb, #e06c75 40%, transparent); }
}
.hamming-lab__cell-tag {
font-size: 8px;
color: var(--muted);
line-height: 1;
}
.hamming-lab__side {
flex: 1 1 14rem;
min-width: 12rem;
}
.hamming-lab__status {
margin: 0 0 0.85rem;
padding: 0.65rem 0.75rem;
border-radius: 8px;
background: color-mix(in srgb, var(--bg) 60%, transparent);
border: 1px solid var(--line);
font-family: var(--mono);
font-size: 12px;
color: var(--soft);
line-height: 1.55;
min-height: 4.5rem;
}
.hamming-lab__status strong {
color: var(--ink);
font-weight: 500;
}
.hamming-lab__actions {
display: flex;
flex-wrap: wrap;
gap: 0.4rem;
}
.hamming-lab__btn {
padding: 0.45rem 0.7rem;
border: 1px solid var(--line);
border-radius: 6px;
background: var(--panel);
color: var(--soft);
font-family: var(--mono);
font-size: 11px;
cursor: pointer;
transition: border-color 0.12s, color 0.12s;
}
.hamming-lab__btn:hover:not(:disabled) {
border-color: color-mix(in srgb, var(--accent) 45%, transparent);
color: var(--ink);
}
.hamming-lab__btn:disabled {
opacity: 0.4;
cursor: not-allowed;
}
.hamming-lab__btn--primary {
border-color: color-mix(in srgb, var(--accent) 40%, transparent);
color: var(--ink);
}
.hamming-lab__checks {
display: flex;
flex-wrap: wrap;
gap: 0.35rem;
margin-top: 0.75rem;
}
.hamming-lab__check {
padding: 0.2rem 0.45rem;
border-radius: 4px;
font-family: var(--mono);
font-size: 10px;
border: 1px solid var(--line);
color: var(--muted);
}
.hamming-lab__check--ok {
border-color: color-mix(in srgb, #a6da95 50%, transparent);
color: #a6da95;
}
.hamming-lab__check--fail {
border-color: color-mix(in srgb, #e06c75 50%, transparent);
color: #e06c75;
}
/* ── rough notes map ── */
.notes-tab__intro {
margin-bottom: 1.25rem;
text-align: center;
}
.notes-map {
--notes-card: min(16rem, calc(50% - 1.5rem));
position: relative;
display: grid;
grid-template-columns: 1fr 1fr;
grid-template-rows: repeat(4, auto);
column-gap: 3rem;
row-gap: 3.25rem;
max-width: 46rem;
margin: 0 auto 2rem;
padding: 2.25rem 2.25rem 2.5rem;
border: 1px solid var(--line);
border-radius: var(--radius);
background:
radial-gradient(ellipse 120% 80% at 50% 0%, color-mix(in srgb, var(--accent) 7%, transparent), transparent 55%),
color-mix(in srgb, var(--card-bg) 45%, transparent);
}
.notes-map__paths {
position: absolute;
inset: 0;
width: 100%;
height: 100%;
overflow: visible;
pointer-events: none;
color: color-mix(in srgb, var(--muted) 60%, transparent);
}
.notes-map__card {
position: relative;
z-index: 1;
display: flex;
flex-direction: column;
gap: 0.65rem;
width: 100%;
max-width: var(--notes-card);
margin: 0;
padding: 0.7rem;
border: 1px solid var(--line);
border-radius: var(--radius);
background: var(--card-bg);
backdrop-filter: blur(2px);
-webkit-backdrop-filter: blur(2px);
cursor: pointer;
text-align: left;
font: inherit;
color: var(--ink);
justify-self: center;
transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}
.notes-map__card[data-slot="1"] { grid-row: 1; grid-column: 1; }
.notes-map__card[data-slot="2"] { grid-row: 1; grid-column: 2; }
.notes-map__card[data-slot="3"] { grid-row: 2; grid-column: 2; }
.notes-map__card[data-slot="4"] { grid-row: 2; grid-column: 1; }
.notes-map__card[data-slot="5"] { grid-row: 3; grid-column: 1; }
.notes-map__card[data-slot="6"] { grid-row: 3; grid-column: 2; }
.notes-map__card[data-slot="7"] { grid-row: 4; grid-column: 2; }
.notes-map__card[data-slot="8"] { grid-row: 4; grid-column: 1; }
.notes-map__card:hover {
transform: translateY(-2px);
border-color: color-mix(in srgb, var(--accent) 45%, var(--line));
background: color-mix(in srgb, var(--card-bg) 100%, var(--accent) 6%);
}
.notes-map__card:focus-visible {
outline: 2px solid var(--accent);
outline-offset: 3px;
}
.notes-map__num {
position: absolute;
top: -0.45rem;
left: 0.55rem;
z-index: 1;
min-width: 1.5rem;
padding: 0.1rem 0.4rem;
border-radius: var(--radius);
background: var(--bg);
border: 1px solid color-mix(in srgb, var(--accent) 32%, var(--line));
font-family: var(--mono);
font-size: 11px;
font-weight: 500;
color: var(--ink);
line-height: 1.35;
text-align: center;
}
.notes-map__frame {
display: flex;
align-items: center;
justify-content: center;
aspect-ratio: 3 / 4;
overflow: hidden;
border-radius: 8px;
border: 1px solid color-mix(in srgb, var(--line) 60%, transparent);
background: #faf7f0;
}
[data-theme="dark"] .notes-map__frame {
background: #eceae4;
}
.notes-map__frame img {
display: block;
width: 100%;
height: 100%;
object-fit: contain;
object-position: center top;
}
.notes-map__caption {
font-family: var(--mono);
font-size: 11px;
line-height: 1.5;
color: var(--soft);
display: -webkit-box;
-webkit-line-clamp: 2;
-webkit-box-orient: vertical;
overflow: hidden;
}
/* ── notes fullscreen lightbox ── */
.notes-lightbox {
position: fixed;
inset: 0;
z-index: 60;
display: none;
align-items: center;
justify-content: center;
padding: 1rem;
opacity: 0;
visibility: hidden;
transition: opacity 0.22s ease, visibility 0s linear 0.22s;
}
.notes-lightbox.is-open {
display: flex;
opacity: 1;
visibility: visible;
transition: opacity 0.22s ease, visibility 0s;
}
.notes-lightbox__backdrop {
position: absolute;
inset: 0;
border: none;
background: rgba(12, 14, 22, 0.72);
backdrop-filter: blur(6px);
-webkit-backdrop-filter: blur(6px);
cursor: pointer;
}
[data-theme="dark"] .notes-lightbox__backdrop {
background: rgba(0, 0, 0, 0.82);
}
.notes-lightbox__shell {
position: relative;
z-index: 1;
display: flex;
flex-direction: column;
width: min(920px, 100%);
max-height: min(96vh, 96dvh);
border: 1px solid color-mix(in srgb, var(--line) 80%, transparent);
border-radius: 14px;
background: color-mix(in srgb, var(--panel) 96%, transparent);
box-shadow: 0 28px 80px rgba(0, 0, 0, 0.45);
overflow: hidden;
transform: translateY(12px) scale(0.98);
transition: transform 0.28s cubic-bezier(0.22, 1, 0.36, 1);
}
.notes-lightbox.is-open .notes-lightbox__shell {
transform: none;
}
.notes-lightbox__head {
display: flex;
align-items: flex-start;
justify-content: space-between;
gap: 1rem;
padding: 0.85rem 1rem 0.75rem;
border-bottom: 1px solid var(--line);
}
.notes-lightbox__meta {
display: flex;
flex-direction: column;
gap: 0.25rem;
min-width: 0;
}
.notes-lightbox__num {
font-family: var(--mono);
font-size: 11px;
font-weight: 500;
color: var(--accent);
letter-spacing: 0.04em;
}
.notes-lightbox__caption {
font-family: var(--mono);
font-size: 12px;
line-height: 1.45;
color: var(--soft);
}
.notes-lightbox__close {
flex-shrink: 0;
width: 2rem;
height: 2rem;
border: 1px solid var(--line);
border-radius: 8px;
background: transparent;
color: var(--muted);
font-size: 1.25rem;
line-height: 1;
cursor: pointer;
transition: color 0.15s, border-color 0.15s;
}
.notes-lightbox__close:hover {
color: var(--ink);
border-color: color-mix(in srgb, var(--accent) 40%, var(--line));
}
.notes-lightbox__fig {
flex: 1;
min-height: 0;
margin: 0;
padding: 0.75rem 1rem;
display: flex;
align-items: center;
justify-content: center;
overflow: auto;
background: color-mix(in srgb, var(--bg) 50%, transparent);
}
.notes-lightbox__fig img {
display: block;
max-width: 100%;
max-height: min(72vh, 72dvh);
width: auto;
height: auto;
border-radius: 6px;
box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}
.notes-lightbox__nav {
display: flex;
align-items: center;
justify-content: space-between;
gap: 0.75rem;
padding: 0.65rem 1rem 0.85rem;
border-top: 1px solid var(--line);
}
.notes-lightbox__nav-btn {
padding: 0.4rem 0.7rem;
border: 1px solid var(--line);
border-radius: 7px;
background: transparent;
font-family: var(--mono);
font-size: 11px;
color: var(--soft);
cursor: pointer;
transition: border-color 0.15s, color 0.15s;
}
.notes-lightbox__nav-btn:hover:not(:disabled) {
color: var(--ink);
border-color: color-mix(in srgb, var(--accent) 45%, var(--line));
}
.notes-lightbox__nav-btn:disabled {
opacity: 0.35;
cursor: default;
}
.notes-lightbox__counter {
font-family: var(--mono);
font-size: 11px;
color: var(--muted);
}
body.notes-lightbox-open {
overflow: hidden;
}
@media (max-width: 640px) {
.notes-map {
grid-template-columns: 1fr;
grid-template-rows: none;
grid-auto-rows: auto;
row-gap: 0;
max-width: 18rem;
padding: 1.5rem 1.25rem 1.75rem;
}
.notes-map__card,
.notes-map__card[data-slot] {
grid-row: auto !important;
grid-column: 1 !important;
justify-self: center !important;
margin: 0 0 2rem !important;
max-width: 16rem;
}
.notes-lightbox {
padding: 0;
}
.notes-lightbox__shell {
width: 100%;
max-height: 100vh;
max-height: 100dvh;
border-radius: 0;
border: none;
}
.notes-lightbox__fig img {
max-height: min(68vh, 68dvh);
}
}
@media (prefers-reduced-motion: reduce) {
.notes-map__card,
.notes-map__frame img,
.notes-lightbox,
.notes-lightbox__shell {
transition: none;
}
}
@media (max-width: 520px) {
.hamming-grid {
grid-template-columns: repeat(4, 2.15rem);
}
.hamming-lab__grid {
grid-template-columns: repeat(4, 2.35rem);
}
.hamming-lab__cell {
font-size: 13px;
}
.cpp-play__layout {
grid-template-columns: 1fr;
}
}
/* ── C++ playground (hamming-cpp.html) ── */
.cpp-play {
margin: 1.5rem 0 2rem;
}
.cpp-play__layout {
display: grid;
grid-template-columns: 1fr 1fr;
gap: 1.25rem;
align-items: start;
}
.cpp-play__panel {
min-width: 0;
padding: 1rem 1.05rem;
border: 1px solid var(--line);
border-radius: var(--radius);
background: color-mix(in srgb, var(--card-bg) 45%, transparent);
}
.cpp-play__panel h3 {
margin: 0 0 0.65rem;
font-family: var(--mono);
font-size: 0.9rem;
font-weight: 500;
color: var(--ink);
}
.cpp-play__hint {
margin: 0 0 0.5rem;
font-size: 13px;
color: var(--muted);
}
.cpp-play__hint--tight {
margin: 0 0 0.4rem;
font-size: 12px;
}
.cpp-play__hint--stdout {
margin: 0.75rem 0 0.35rem;
font-size: 12px;
}
.cpp-play__hint--footer {
font-size: 13px;
}
.cpp-play__msg-row {
display: flex;
flex-wrap: wrap;
gap: 4px;
margin-bottom: 0.85rem;
}
.cpp-play__bit {
width: 2.25rem;
height: 2.25rem;
}
.cpp-play__actions {
display: flex;
flex-wrap: wrap;
gap: 0.4rem;
margin-bottom: 0.75rem;
}
.cpp-play__err-row {
display: flex;
flex-wrap: wrap;
align-items: center;
gap: 0.4rem;
margin-bottom: 0.75rem;
font-family: var(--mono);
font-size: 11px;
color: var(--muted);
}
.cpp-play__err-row input {
width: 2.5rem;
padding: 0.25rem 0.35rem;
border: 1px solid var(--line);
border-radius: 4px;
background: var(--card-bg);
color: var(--soft);
font-family: var(--mono);
font-size: 11px;
}
.cpp-play__terminal {
margin: 0;
padding: 0.75rem 0.85rem;
min-height: 10rem;
max-height: 18rem;
overflow: auto;
border: 1px solid var(--line);
border-radius: 8px;
background: color-mix(in srgb, var(--bg) 75%, transparent);
font-family: var(--mono);
font-size: 11px;
line-height: 1.55;
color: var(--soft);
white-space: pre-wrap;
}
.cpp-play__source {
margin: 0;
max-height: 28rem;
overflow: auto;
font-size: 11px;
}
.cpp-play__source-wrap .post-content pre {
margin: 0;
}
.cpp-open-link {
display: inline-flex;
align-items: center;
gap: 0.35rem;
margin: 0 0 1rem;
padding: 0.5rem 0.75rem;
border: 1px solid color-mix(in srgb, var(--accent) 35%, var(--line));
border-radius: 8px;
background: color-mix(in srgb, var(--accent) 8%, transparent);
font-family: var(--mono);
font-size: 12px;
color: var(--ink);
text-decoration: none;
}
.cpp-open-link:hover {
border-color: color-mix(in srgb, var(--accent) 55%, transparent);
}
@media (max-width: 720px) {
.cpp-play__layout {
grid-template-columns: 1fr;
}
}
/* hero clip at the top of the article — plays like a gif */
.hamming-hero {
margin-top: 0.5rem;
}
.hamming-hero video {
aspect-ratio: 16 / 9;
object-fit: cover;
}