mayu

@import url("https://fonts.googleapis.com/css2?family=Fredoka:wght@400;500;600&display=swap");
@import url("https://fonts.googleapis.com/css2?family=Nunito+Sans:ital,wght@0,400;0,700;1,400&display=swap");
@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;1,100;1,200;1,300;1,400;1,500;1,600;1,700&display=swap");

:root {
  color-scheme: light dark;
  scrollbar-color: var(--scrollbar-thumb) transparent;
  touch-action: manipulation;
  interpolate-size: allow-keywords;

  /* Brand hues. Every shade below is derived from these in oklch. */
  --hue-navy: 275;
  --hue-pink: 355;

  --navy: oklch(32% 0.11 var(--hue-navy));
  --navy-deep: oklch(18% 0.06 var(--hue-navy));
  --deep-purple: oklch(28% 0.08 var(--hue-navy));
  --blue-background: var(--navy);
  --pink: oklch(66% 0.16 var(--hue-pink));
  --pink-soft: light-dark(
    oklch(80% 0.08 var(--hue-pink)),
    oklch(68% 0.08 var(--hue-pink))
  );
  --lime: oklch(88% 0.17 125);
  --sun: oklch(84% 0.15 80);
  --sand: oklch(87% 0.09 95);

  /* Legacy palette used by demos */
  --dark: var(--text);
  --bright: var(--surface-raised);
  --red: oklch(62% 0.2 20);
  --orange: oklch(78% 0.17 75);
  --yellow: oklch(90% 0.16 95);
  --yellow-bright: oklch(96% 0.06 95);
  --green-dark: oklch(58% 0.15 150);
  --green: oklch(70% 0.18 150);
  --green-bright: light-dark(oklch(94% 0.07 150), oklch(30% 0.06 150));
  --red-bright: light-dark(oklch(93% 0.04 20), oklch(28% 0.06 20));
  --gray: light-dark(
    oklch(70% 0.02 var(--hue-navy)),
    oklch(45% 0.03 var(--hue-navy))
  );
  --gray-1: #fff;
  --white: var(--surface-raised);
  --blue-dark: oklch(30% 0.12 260);
  --blue: oklch(62% 0.19 260);
  --blue-bright: light-dark(oklch(95% 0.03 260), oklch(30% 0.07 260));

  /* Themed surfaces. Dark mode is near-black indigo, light mode a cool off-white. */
  --surface: light-dark(
    oklch(94.5% 0.014 300),
    oklch(14% 0.02 var(--hue-navy))
  );
  --surface-raised: light-dark(
    oklch(98.5% 0.006 300),
    oklch(19% 0.025 var(--hue-navy))
  );
  --surface-sunken: light-dark(
    oklch(91% 0.018 300),
    oklch(11% 0.018 var(--hue-navy))
  );
  --surface-overlay: light-dark(
    oklch(98% 0.006 300 / 85%),
    oklch(16% 0.02 var(--hue-navy) / 85%)
  );
  --text: light-dark(
    oklch(28% 0.06 var(--hue-navy)),
    oklch(88% 0.012 var(--hue-navy))
  );
  --text-muted: light-dark(
    oklch(48% 0.04 var(--hue-navy)),
    oklch(64% 0.03 var(--hue-navy))
  );
  --accent: light-dark(
    oklch(56% 0.17 var(--hue-pink)),
    oklch(64% 0.1 var(--hue-pink))
  );
  --accent-soft: color-mix(in oklab, var(--accent) 12%, transparent);
  --accent-contrast: #fff;
  /* Solid buttons keep the light-theme pink in both modes. */
  --button-background: oklch(56% 0.17 var(--hue-pink));
  --button-text: #fff;
  --border: light-dark(
    oklch(28% 0.06 var(--hue-navy) / 12%),
    oklch(100% 0 0 / 10%)
  );
  --border-strong: light-dark(
    oklch(28% 0.06 var(--hue-navy) / 24%),
    oklch(100% 0 0 / 20%)
  );
  --shadow: 0 1px 2px
    light-dark(oklch(28% 0.06 var(--hue-navy) / 8%), oklch(0% 0 0 / 40%));
  --shadow-lg: 0 16px 40px -12px
    light-dark(oklch(28% 0.06 var(--hue-navy) / 25%), oklch(0% 0 0 / 70%));
  --shadow-bar: 0 4px 16px -8px
    light-dark(oklch(28% 0.06 var(--hue-navy) / 35%), oklch(0% 0 0 / 80%));
  --scrollbar-thumb: light-dark(
    oklch(28% 0.06 var(--hue-navy) / 25%),
    oklch(100% 0 0 / 18%)
  );

  --accent-color: var(--accent);
  accent-color: var(--accent-color);

  /* Chrome: header and footer. Brand navy in light mode, near-black in dark. */
  --chrome-background: light-dark(var(--navy), oklch(12% 0.02 var(--hue-navy)));
  --chrome-color: oklch(90% 0.012 var(--hue-navy));
  --chrome-muted: oklch(74% 0.03 var(--hue-navy));
  --chrome-border: oklch(100% 0 0 / 10%);

  --body-background: var(--chrome-background);
  --body-color: var(--chrome-color);

  --header-background: color-mix(
    in oklab,
    var(--chrome-background) 85%,
    transparent
  );
  --header-link-color: var(--chrome-muted);
  --header-link-hover-color: #fff;

  --footer-background: var(--chrome-background);
  --footer-color: var(--chrome-muted);

  --main-background: var(--surface);
  --main-color: var(--text);
  --main-link-color: var(--accent);

  --breadcrumbs-background: transparent;
  --breadcrumbs-color: var(--text-muted);

  --menu-background: light-dark(
    color-mix(in oklab, var(--pink) 6%, var(--surface)),
    var(--surface-sunken)
  );
  --menu-color: var(--text);
  --menu-link-color: var(--text-muted);

  --slightly-darker: var(--border);
  --slightly-brighter: light-dark(oklch(100% 0 0 / 60%), oklch(100% 0 0 / 12%));

  --link-color: var(--accent);
  --thin-border: 1px solid var(--border);
  --radius: 0.625rem;
  --radius-sm: 0.375rem;

  height: 100%;
  min-height: 100svh;
  --page-max-width: 60rem;
  --header-height: 3.5rem;

  --font-heading: "Fredoka", "Fredoka Fallback", "Nunito Sans", sans-serif;
  --font-regular: "Nunito Sans", "Nunito Sans Fallback", system-ui, sans-serif;
  --font-mono:
    "IBM Plex Mono", "IBM Plex Mono Fallback", ui-monospace, monospace;

  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  line-height: inherit;
  font-size: inherit;
}

body {
  margin: 0;
  padding: 0;
  overflow-y: scroll;
  /* Repeated here so the viewport scrollbar follows the theme switcher, which
     sets color-scheme on body rather than on the root. */
  scrollbar-color: var(--scrollbar-thumb) transparent;
  min-height: 100svh;
  background: var(--body-background);
  color: var(--body-color);
  font-family: var(--font-regular);
  line-height: 1.6;

  /* No fixed height: the body must grow with its content, or sticky
  children stop following once the viewport height is scrolled past. */
  min-height: 100svh;
  display: grid;
  /* The header row is fixed so the start page hero can span it. */
  grid-template-rows: var(--header-height) 1fr auto;
  grid-template-columns: 1fr;
}

:is(h1, h2, h3, h4, h5, h6) {
  font-family: var(--font-heading);
  font-weight: 500;
  letter-spacing: -0.01em;
}

:is(pre, code) {
  font-family: var(--font-mono);
}

::view-transition-group(root) {
  animation-duration: 200ms;
}