@import url("https://fonts.googleapis.com/css2?family=Atkinson+Hyperlegible:ital,wght@0,400;0,700;1,400;1,700&family=Lora:ital,wght@0,400;0,700;1,400;1,700&display=swap");

@font-face {
  font-family: "Berkeley Mono";
  src: url("/static/fonts/BerkeleyMono-Regular.woff2") format("woff2");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "Berkeley Mono";
  src: url("/static/fonts/BerkeleyMono-Italic.woff2") format("woff2");
  font-style: italic;
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "Berkeley Mono";
  src: url("/static/fonts/BerkeleyMono-Bold.woff2") format("woff2");
  font-style: normal;
  font-weight: 700;
  font-display: swap;
}

@font-face {
  font-family: "Berkeley Mono";
  src: url("/static/fonts/BerkeleyMono-BoldItalic.woff2") format("woff2");
  font-style: italic;
  font-weight: 700;
  font-display: swap;
}

:root {
  --page-width: min(1180px, calc(100% - 2rem));
  --page-width-narrow: min(760px, calc(100% - 2rem));
  --page-width-auth: min(980px, calc(100% - 2rem));
  --shell-gap: clamp(1.25rem, 2vw, 1.75rem);
  --section-gap: clamp(1.8rem, 3vw, 2.8rem);
  --space-1: 0.35rem;
  --space-2: 0.55rem;
  --space-3: 0.85rem;
  --space-4: 1.15rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 2.8rem;
  --space-xs: var(--space-1);
  --space-sm: var(--space-2);
  --space-md: var(--space-3);
  --space-lg: var(--space-5);
  --space-xl: var(--space-7);
  --control-height-compact: 2.45rem;
  --text-caption: 0.74rem;
  --text-label: 0.82rem;
  --text-secondary: 0.94rem;
  --text-body: 1rem;
  --text-lead: 1.08rem;
  --text-title: 1.18rem;
  --leading-tight: 1.08;
  --leading-heading: 1.14;
  --leading-body: 1.66;
  --leading-loose: 1.74;
  --tracking-tight: -0.04em;
  --tracking-title: -0.03em;
  --tracking-label: 0.12em;
  --tracking-label-soft: 0.08em;
  --measure-copy: 58ch;
  --measure-reading: 64ch;
  --weight-body: 400;
  --weight-strong: 700;
  --font-body: "Atkinson Hyperlegible", sans-serif;
  --font-display: "Lora", serif;
  --font-mono: "Berkeley Mono", monospace;
  --pico-font-family: var(--font-body);
  --pico-font-family-sans-serif: var(--font-body);
  --pico-font-family-monospace: var(--font-mono);
  --pico-font-size: 1rem;
  --pico-line-height: var(--leading-body);
  --pico-border-radius: 0;
  --pico-spacing: 1rem;
  --pico-block-spacing-horizontal: 0;
  --pico-block-spacing-vertical: 1.25rem;
  --pico-form-element-spacing-vertical: 0.95rem;
  --pico-form-element-spacing-horizontal: 0.95rem;
  --sl-border-radius-medium: 0;
  --sl-border-radius-small: 0;
  --sl-border-radius-large: 0;
  --sl-panel-border-radius: 0;
  --sl-font-sans: var(--font-body);
  --sl-font-serif: var(--font-display);
  --sl-font-mono: var(--font-mono);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

html {
  background: var(--paper);
  font-size: 17px;
  scroll-padding-top: 5rem;
}

body {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(circle at top left,
      rgba(var(--hiisi-accent-rgb), 0.12),
      transparent 34%),
    linear-gradient(180deg,
      color-mix(in srgb, var(--paper) 92%, white 8%) 0%,
      var(--paper) 32%,
      var(--paper-strong) 100%);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--text-body);
  line-height: var(--leading-body);
  font-kerning: normal;
  font-variant-ligatures: common-ligatures contextual;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(0, 0, 0, 0.028) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0, 0, 0, 0.024) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.45), transparent 75%);
  opacity: 0.22;
}

html[data-theme="dark"] body {
  background:
    radial-gradient(circle at top left,
      rgba(var(--hiisi-accent-rgb), 0.12),
      transparent 30%),
    radial-gradient(circle at 82% 12%,
      rgba(var(--hiisi-accent-rgb), 0.045),
      transparent 24%),
    radial-gradient(circle at 48% 100%,
      rgba(var(--hiisi-accent-rgb), 0.035),
      transparent 34%),
    linear-gradient(180deg,
      color-mix(in srgb, var(--dark-page-gradient-start) 84%, var(--hiisi-accent-950) 16%) 0%,
      color-mix(in srgb, var(--dark-page-gradient-mid) 88%, var(--paper-deep) 12%) 38%,
      color-mix(in srgb, var(--dark-page-gradient-end) 92%, var(--hiisi-accent-950) 8%) 100%);
}

html[data-theme="dark"] body::before {
  opacity: 0.16;
}

::selection {
  background: rgba(var(--hiisi-accent-rgb), 0.22);
  color: var(--ink);
}

a {
  color: inherit;
  text-underline-offset: 0.16em;
}

a:hover,
a:focus-visible {
  color: var(--ink);
}

button,
input,
textarea,
select {
  font: inherit;
}

input:not([type="checkbox"]):not([type="radio"]),
textarea,
select,
sl-input,
sl-textarea,
sl-select {
  max-width: 100%;
  min-width: 0;
}

sl-input,
sl-textarea,
sl-select {
  display: block;
  width: 100%;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0 0 0.75rem 0;
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: var(--weight-strong);
  letter-spacing: var(--tracking-tight);
  line-height: var(--leading-tight);
  text-wrap: balance;
}

h1 {
  font-size: clamp(1.95rem, 3.45vw, 3.25rem);
}

h2 {
  font-size: clamp(1.55rem, 2.45vw, 2.25rem);
  line-height: var(--leading-heading);
}

h3 {
  font-size: clamp(1.12rem, 1.35vw, 1.42rem);
  line-height: calc(var(--leading-heading) + 0.02);
}

p,
ul,
ol,
dl,
pre,
blockquote {
  margin-top: 0;
}

p,
li,
dd,
blockquote {
  text-wrap: pretty;
}

small,
.muted {
  color: var(--muted);
}

hr {
  border: 0;
  border-top: 1px solid var(--rule);
  margin: var(--space-6) 0;
}

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

.container,
.container-fluid {
  width: var(--page-width);
  margin-inline: auto;
  padding-inline: 0;
}

main.container,
main.container-fluid {
  padding-block: clamp(1.6rem, 2.8vw, 2.5rem) clamp(3rem, 5vw, 4.5rem);
}

nav ul {
  padding-left: 0;
  list-style: none;
}

nav li,
footer li {
  list-style: none;
}

article,
.dashboard-panel,
.dashboard-hero,
.deck-card,
.flashcard-card {
  background: var(--pico-card-background-color);
  border: 1px solid var(--pico-card-border-color);
  box-shadow: var(--pico-card-box-shadow);
  border-radius: 0;
}

article {
  padding: clamp(1rem, 2vw, 1.5rem);
  padding-bottom: clamp(1.3rem, 2.5vw, 1.9rem);
}

article > header,
article > footer {
  background: transparent;
  border: 0;
  padding: 0;
}

article > header {
  padding-top: 1rem;
}

article > footer {
  padding-bottom: 1rem;
}

article > header:last-child {
  margin-bottom: 0;
}

main.container > article + article {
  margin-top: 1rem;
}

main.container > section + section,
main.container > article + section,
main.container > section + article {
  margin-top: 1rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: transparent;
}

th,
td {
  border-bottom: 1px solid var(--rule);
  padding: 0.9rem 0.75rem;
  vertical-align: top;
  font-variant-numeric: tabular-nums;
}

th {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-align: left;
  text-transform: uppercase;
}