/* =============================================================================================
* main.css — everything the first viewport did NOT need.
*
* Loaded with from inc/head.php,
* so it never blocks the first paint; the critical rules are inlined there instead.
*
* Contents
* 1. Design tokens (fallbacks only — see the note below)
* 2. Layout primitives
* 3. Cards
* 4. How to play
* 5. Features
* 6. FAQ
* 7. Related
* 8. Game area
* 9. 404
* 10. Footer
* 11. Breakpoints
* 12. Reduced motion
* 13. Print
*
* NOTE — why the token block below is wrapped in :where().
* The real palette is generated by PHP from `theme` in inc/config.php and inlined in .
* This file is a LATER stylesheet, so a plain `:root{--bg:…}` here would beat that inline
* block and every landing would come out the same colour. `:where(:root)` has a specificity
* of zero, so these values only apply when the critical CSS is missing entirely — a CDN
* stripping inline styles, a cached partial page — and the site still looks right instead of
* unstyled. Change colours in inc/config.php, never here.
* =========================================================================================== */
/* --------------------------------------------------------------------------- 1. tokens --- */
:where(:root) {
--primary: #4f7cff;
--accent: #ffb545;
--bg: #0e1117;
--surface: #171b26;
--raised: #1e222d;
--text: #e8ecf5;
--muted: #abafb7;
--border: #31343b;
--on-fill: #0e1117;
--ring: #4f7cff;
--wrap: 1120px;
--gap: clamp(1rem, 3vw, 1.75rem);
--radius: 14px;
--radius-sm: 9px;
--font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
--shadow: 0 1px 2px rgba(0, 0, 0, .28), 0 10px 30px rgba(0, 0, 0, .22);
color-scheme: dark;
}
/* Light variant, both ways round: the explicit toggle wins over the OS preference. */
:where(:root[data-theme="light"]) {
--bg: #f3f3f4;
--surface: #ffffff;
--raised: #fafafb;
--text: #1c1f25;
--muted: #5b5d61;
--border: #d8d9da;
--primary: #3b5dbf;
--accent: #8c6426;
--on-fill: #ffffff;
--ring: #3b5dbf;
--shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 10px 28px rgba(16, 24, 40, .08);
color-scheme: light;
}
@media (prefers-color-scheme: light) {
:where(:root:not([data-theme="dark"])) {
--bg: #f3f3f4;
--surface: #ffffff;
--raised: #fafafb;
--text: #1c1f25;
--muted: #5b5d61;
--border: #d8d9da;
--primary: #3b5dbf;
--accent: #8c6426;
--on-fill: #ffffff;
--ring: #3b5dbf;
--shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 10px 28px rgba(16, 24, 40, .08);
color-scheme: light;
}
}
/* ---------------------------------------------------------------- 2. layout primitives --- */
body {
min-height: 100vh;
display: flex;
flex-direction: column;
}
main {
flex: 1 0 auto;
}
.section + .section {
border-top: 1px solid var(--border);
}
.section__lead {
margin: -.35rem 0 1.9rem;
}
ul,
ol {
margin: 0;
padding: 0;
}
.visually-hidden {
position: absolute;
width: 1px;
height: 1px;
margin: -1px;
padding: 0;
overflow: hidden;
clip: rect(0 0 0 0);
clip-path: inset(50%);
white-space: nowrap;
border: 0;
}
.icon {
width: 1.5rem;
height: 1.5rem;
flex: none;
}
.btn .icon {
width: 1.15rem;
height: 1.15rem;
margin-inline-start: -.15rem;
}
.btn {
transition: background-color .16s ease, color .16s ease, border-color .16s ease, transform .12s ease;
}
.btn:active {
transform: translateY(1px);
}
.iconbtn {
transition: border-color .16s ease, color .16s ease, background-color .16s ease;
}
/* ---------------------------------------------------------------------------- 3. cards --- */
.card {
list-style: none;
background: var(--surface);
border: 1px solid var(--border);
border-radius: var(--radius);
padding: clamp(1.15rem, 2.4vw, 1.6rem);
}
.card h3 {
margin-bottom: .45rem;
}
.card p:last-child {
margin-bottom: 0;
}
/* --------------------------------------------------------------------- 4. how to play --- */
.howto__list {
display: grid;
gap: var(--gap);
grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
counter-reset: howto;
}
.howto__step {
list-style: none;
display: flex;
gap: .9rem;
align-items: flex-start;
background: var(--surface);
border: 1px solid var(--border);
border-radius: var(--radius);
padding: clamp(1.15rem, 2.4vw, 1.5rem);
}
.howto__num {
flex: none;
display: grid;
place-items: center;
width: 2.1rem;
height: 2.1rem;
border-radius: 50%;
background: var(--primary);
color: var(--on-fill);
font-weight: 800;
font-size: .95rem;
line-height: 1;
}
.howto__title {
margin-bottom: .35rem;
}
.howto__body p:last-child {
margin-bottom: 0;
}
/* ------------------------------------------------------------------------- 5. features --- */
.features__grid {
display: grid;
gap: var(--gap);
grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
}
.feature__icon {
display: block;
font-size: 1.7rem;
line-height: 1;
margin-bottom: .7rem;
}
.feature__text {
color: var(--muted);
font-size: .965rem;
}
/* ------------------------------------------------------------------------------ 6. FAQ --- */
.faq__list {
display: grid;
gap: .7rem;
max-width: 68ch;
}
.faq__item {
background: var(--surface);
border: 1px solid var(--border);
border-radius: var(--radius);
overflow: hidden;
}
.faq__item[open] {
border-color: var(--primary);
}
.faq__q {
display: flex;
align-items: center;
justify-content: space-between;
gap: 1rem;
padding: 1rem clamp(1rem, 2.4vw, 1.35rem);
cursor: pointer;
font-weight: 650;
list-style: none;
}
/* Safari still paints its own triangle without this. */
.faq__q::-webkit-details-marker {
display: none;
}
.faq__q:hover {
color: var(--primary);
}
.faq__chev .icon {
width: 1.2rem;
height: 1.2rem;
color: var(--muted);
transform: rotate(90deg);
transition: transform .18s ease;
}
.faq__item[open] .faq__chev .icon {
transform: rotate(-90deg);
color: var(--primary);
}
.faq__a {
padding: 0 clamp(1rem, 2.4vw, 1.35rem) 1.15rem;
color: var(--muted);
}
.faq__a p:last-child {
margin-bottom: 0;
}
/* -------------------------------------------------------------------------- 7. related --- */
.related__grid {
display: grid;
gap: var(--gap);
grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}
.related__title {
display: flex;
align-items: center;
gap: .4rem;
}
.related__title a {
display: inline-flex;
align-items: center;
gap: .35rem;
text-decoration: none;
color: var(--text);
}
.related__title a:hover {
color: var(--primary);
}
.related__title .icon {
width: 1.05rem;
height: 1.05rem;
color: var(--primary);
transition: transform .16s ease;
}
.related__card--link:hover {
border-color: var(--primary);
}
.related__card--link:hover .related__title .icon {
transform: translateX(3px);
}
.related__text {
color: var(--muted);
font-size: .965rem;
}
/* ----------------------------------------------------------------------------- 8. game --- */
.game__facade {
transition: background-color .16s ease;
}
.game__facade:hover .game__play,
.game__facade:focus-visible .game__play {
background: var(--accent);
}
.game__play {
pointer-events: none;
}
.game__ph .icon {
width: 2.4rem;
height: 2.4rem;
color: var(--primary);
}
.game__ph code {
word-break: break-word;
}
.game__note {
color: var(--muted);
font-size: .9rem;
margin: .85rem 0 0;
}
/* ------------------------------------------------------------------------------ 9. 404 --- */
.notfound {
text-align: center;
}
.notfound .hero__tagline,
.notfound .hero__actions {
margin-inline: auto;
justify-content: center;
}
.notfound__code {
font-size: clamp(3.5rem, 12vw, 7rem);
font-weight: 800;
line-height: 1;
margin: 0 0 .25rem;
color: var(--primary);
letter-spacing: -.04em;
}
/* --------------------------------------------------------------------------- 10. footer --- */
.site-footer {
margin-top: clamp(2rem, 6vw, 4rem);
border-top: 1px solid var(--border);
background: var(--surface);
padding: clamp(1.75rem, 4vw, 2.5rem) 0;
}
.site-footer__inner {
display: flex;
flex-wrap: wrap;
gap: 1.25rem 2rem;
align-items: flex-start;
justify-content: space-between;
}
.site-footer__note {
color: var(--muted);
font-size: .92rem;
margin: .6rem 0 0;
max-width: 46ch;
}
.site-footer__nav ul {
display: flex;
flex-wrap: wrap;
gap: .35rem 1.25rem;
list-style: none;
}
.site-footer__nav a {
color: var(--muted);
text-decoration: none;
font-size: .95rem;
}
.site-footer__nav a:hover {
color: var(--primary);
text-decoration: underline;
}
.site-footer__legal {
flex-basis: 100%;
color: var(--muted);
font-size: .88rem;
margin: 0;
padding-top: 1rem;
border-top: 1px solid var(--border);
display: flex;
flex-wrap: wrap;
gap: .5rem 1rem;
justify-content: space-between;
}
.site-footer__top {
color: var(--muted);
}
/* ---------------------------------------------------------------------- 11. breakpoints --- */
@media (max-width: 719px) {
.site-footer__inner {
flex-direction: column;
}
.howto__list,
.features__grid,
.related__grid {
grid-template-columns: 1fr;
}
}
@media (min-width: 900px) {
.features__grid {
grid-template-columns: repeat(4, 1fr);
}
.howto__list {
grid-template-columns: repeat(2, 1fr);
}
}
@media (min-width: 1200px) {
.howto__list {
grid-template-columns: repeat(4, 1fr);
}
}
/* ------------------------------------------------------------------- 12. reduced motion --- */
@media (prefers-reduced-motion: reduce) {
html {
scroll-behavior: auto;
}
*,
*::before,
*::after {
animation-duration: .001ms !important;
animation-iteration-count: 1 !important;
transition-duration: .001ms !important;
scroll-behavior: auto !important;
}
}
/* ------------------------------------------------------------------------------ 13. print --- */
@media print {
:where(:root) {
--bg: #ffffff;
--surface: #ffffff;
--raised: #ffffff;
--text: #000000;
--muted: #333333;
--border: #999999;
--shadow: none;
}
body {
background: #fff;
color: #000;
font-size: 11pt;
}
.site-header,
.nav,
.iconbtn,
.hero__actions,
.game__frame,
.site-footer__nav,
.site-footer__top,
.skip {
display: none !important;
}
/* prints collapsed by default, which would lose every answer. CSS cannot
force it open, so main.js sets [open] on beforeprint and restores it afterwards. */
.faq__item {
border: 0;
break-inside: avoid;
}
.card,
.howto__step {
border: 1px solid #999;
break-inside: avoid;
}
a[href^="http"]::after {
content: " (" attr(href) ")";
font-size: 9pt;
color: #555;
}
}