/* Prototype Index — tokens and card language from jozefsimo.com.
   Monochrome, one system face, one weight. Three-column department grids. */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --dark-page: #000000;
  --dark-text: #ffffff;
  --dark-text-mid: #a1a1a6;
  --dark-text-quiet: #86868b;
  --dark-text-faint: #6e6e73;
  --dark-card: #1d1d1f;
  --dark-line: #2d2d2f;
  --dark-pill: #3a3a3c;

  --light-page: #ffffff;
  --light-text: #000000;
  --light-text-mid: #4a4a4f;
  --light-text-quiet: #65656a;
  --light-text-faint: #7d7d82;
  --light-card: #f2f2f4;
  --light-line: #dcdce0;
  --light-pill: #e8e8ed;
  --dark-contrib: #8e8e93;
  --light-contrib: #2a2a2c;
  --dark-contrib-empty: #161b22;
  --light-contrib-empty: #eff2f5;
  --dark-contrib-edge: rgba(255, 255, 255, 0.06);
  --light-contrib-edge: rgba(31, 35, 40, 0.06);
  --lock: #e8a05c;

  --page: var(--dark-page);
  --text: var(--dark-text);
  --text-mid: var(--dark-text-mid);
  --text-quiet: var(--dark-text-quiet);
  --text-faint: var(--dark-text-faint);
  --card: var(--dark-card);
  --line: var(--dark-line);
  --pill: var(--dark-pill);
  --contrib-on: var(--dark-contrib);
  --contrib-empty: var(--dark-contrib-empty);
  --contrib-edge: var(--dark-contrib-edge);
  color-scheme: dark;

  --font-body: "SF Pro Text", -apple-system, BlinkMacSystemFont,
               "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --text-meta: 1rem;
  --text-body: 1rem;

  --leading-tight: 1.2;
  --leading-normal: 1.5;
  --leading-relaxed: 1.35;

  --font-regular: 400;
  --gutter: 1.5rem;
  --width-wide: 112.5rem;
  --space-section: clamp(4rem, 3rem + 4vw, 7rem);
  --radius: 16px;
}

@media (prefers-color-scheme: light) {
  :root {
    --page: var(--light-page);
    --text: var(--light-text);
    --text-mid: var(--light-text-mid);
    --text-quiet: var(--light-text-quiet);
    --text-faint: var(--light-text-faint);
    --card: var(--light-card);
    --line: var(--light-line);
    --pill: var(--light-pill);
    --contrib-on: var(--light-contrib);
    --contrib-empty: var(--light-contrib-empty);
    --contrib-edge: var(--light-contrib-edge);
    color-scheme: light;
  }
}

@media (min-width: 700px) {
  :root {
    --text-body: 1.25rem;
    --gutter: 3rem;
  }
}

@media (min-width: 64em) {
  :root {
    --gutter: 4rem;
    --text-body: 1.5rem;
  }
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  background: var(--page);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--text-body);
  line-height: var(--leading-relaxed);
  font-weight: var(--font-regular);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

h1,
h2,
h3 {
  font-family: var(--font-body);
  font-weight: var(--font-regular);
  line-height: var(--leading-tight);
  text-wrap: balance;
}

p {
  text-wrap: pretty;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

::selection {
  background: var(--text);
  color: var(--page);
}

:focus-visible {
  outline: 2px solid var(--text);
  outline-offset: 3px;
  border-radius: 2px;
}

.container--wide {
  width: 100%;
  max-width: var(--width-wide);
  padding-inline: var(--gutter);
  margin-inline: auto;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -100%;
  z-index: 40;
  background: var(--text);
  color: var(--page);
  padding: 0.75rem 1.25rem;
  border-radius: 8px;
  text-decoration: none;
}

.skip-link:focus {
  top: 1rem;
}

.split-grid {
  display: grid;
  gap: 1.5rem;
  align-items: start;
}

@media (min-width: 700px) {
  .split-grid {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  isolation: isolate;
  padding-top: 1.5rem;
  padding-bottom: 2rem;
  overflow: visible;
  pointer-events: none;
  background: linear-gradient(
    to bottom,
    var(--page) 0%,
    color-mix(in srgb, var(--page) 55%, transparent) 55%,
    color-mix(in srgb, var(--page) 0%, transparent) 100%
  );
}

.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  mask-image: linear-gradient(
    to bottom,
    #000 0%,
    #000 40%,
    transparent 100%
  );
  -webkit-mask-image: linear-gradient(
    to bottom,
    #000 0%,
    #000 40%,
    transparent 100%
  );
}

.site-header-inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  overflow: visible;
  pointer-events: auto;
}

.site-mark {
  font-size: var(--text-meta);
  line-height: var(--leading-normal);
}

.site-tools {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.site-mark {
  min-width: 0;
}

.site-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.share {
  position: relative;
}

.to-top {
  position: fixed;
  right: max(1.25rem, env(safe-area-inset-right));
  bottom: max(1.25rem, env(safe-area-inset-bottom));
  z-index: 50;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: var(--page);
  color: var(--text-quiet);
  cursor: pointer;
  box-shadow: 0 4px 18px color-mix(in srgb, var(--text) 10%, transparent);
  transition: color 180ms ease, box-shadow 180ms ease;
}

.to-top-ring {
  position: absolute;
  inset: 0;
  width: 44px;
  height: 44px;
  pointer-events: none;
}

.to-top-track,
.to-top-bar {
  fill: none;
  stroke-width: 1.5;
}

.to-top-track {
  stroke: var(--line);
}

.to-top-bar {
  stroke: currentColor;
  stroke-linecap: butt;
  transform: rotate(-90deg);
  transform-origin: 22px 22px;
}

.to-top[hidden] {
  display: none;
}

.to-top-icon {
  display: block;
  width: 16px;
  height: 16px;
}

.to-top:hover,
.to-top:focus-visible {
  color: var(--text);
  box-shadow: 0 6px 22px color-mix(in srgb, var(--text) 14%, transparent);
}

.tool-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  min-height: 2.25rem;
  padding: 0.35rem 0.8rem 0.35rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--page);
  color: var(--text-quiet);
  font: inherit;
  font-size: var(--text-meta);
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  transition: color 180ms ease, border-color 180ms ease;
}

.tool-btn svg {
  display: block;
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

.tool-btn:hover,
.share-btn[aria-expanded="true"] {
  color: var(--text);
  border-color: var(--text-quiet);
}

@media (max-width: 699px) {
  .tool-btn {
    justify-content: center;
    width: 44px;
    height: 44px;
    min-height: 44px;
    padding: 0;
    border-radius: 50%;
  }

  .tool-btn-label {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
    border: 0;
  }
}

.share-panel {
  display: block;
  position: absolute;
  top: calc(100% + 0.35rem);
  right: 0;
  z-index: 40;
  width: 11.5rem;
  padding: 0.75rem;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
}

.share-panel[hidden] {
  display: none;
}

.share-panel img {
  display: block;
  width: 10rem;
  height: 10rem;
  max-width: none;
  image-rendering: pixelated;
}

/* Intro */

.hero {
  padding-top: clamp(3rem, 2rem + 6vw, 6rem);
  padding-bottom: clamp(1.5rem, 1rem + 2vw, 3rem);
}

.hero h1 {
  font-size: var(--text-body);
}

.hero-location {
  color: var(--text-faint);
}

.hero-team {
  margin-top: 1.25rem;
}

.hero-team .card-contributors {
  flex-wrap: wrap;
}

.hero-main {
  min-width: 0;
}

.hero-intro {
  max-width: 36em;
  margin-bottom: 1.75rem;
}

.jump {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.jump a {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 0.7rem;
  border-radius: 999px;
  background: var(--pill);
  color: var(--text);
  font-size: 0.8125rem;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color 180ms ease, color 180ms ease;
}

.jump-name {
  min-width: 0;
}

.jump a .dept-count {
  min-width: 0;
  min-height: 0;
  margin: 0;
  padding: 0;
  border-radius: 0;
  background: transparent;
  color: var(--text-quiet);
  font-size: inherit;
}

.jump a:hover {
  background: var(--line);
  color: var(--text);
}

@media (min-width: 64em) {
  .jump {
    gap: 0.45rem;
  }

  .jump a {
    font-size: 0.9375rem;
    padding: 0.5rem 0.8rem;
  }
}

/* Q3–Q4 contribution grid */

.contrib {
  --cell: 12px;
  --cell-gap: 3px;
  position: relative;
  margin-top: 1.5rem;
  min-width: 0;
  max-width: 100%;
}

.contrib-chart {
  overflow-x: auto;
  overscroll-behavior-x: contain;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 0.25rem;
}

.contrib-months,
.contrib-grid {
  display: grid;
  grid-template-columns: 1.4rem repeat(var(--weeks, 27), var(--cell));
  column-gap: var(--cell-gap);
}

.contrib-months {
  margin-bottom: 4px;
}

.contrib-month {
  font-size: 0.6875rem;
  line-height: 1;
  color: var(--text-quiet);
  white-space: nowrap;
}

.contrib-grid {
  grid-template-rows: repeat(5, var(--cell));
  row-gap: var(--cell-gap);
}

.contrib-dow {
  font-size: 0.625rem;
  line-height: 1;
  color: var(--text-faint);
  align-self: center;
}

.contrib-cell {
  display: block;
  width: var(--cell);
  height: var(--cell);
  padding: 0;
  border: 0;
  border-radius: 2px;
  background: var(--contrib-empty);
  box-shadow: inset 0 0 0 1px var(--contrib-edge);
}

.contrib-cell.is-out {
  background: transparent;
  box-shadow: none;
}

button.contrib-cell {
  cursor: pointer;
}

button.contrib-cell.is-on {
  background: var(--contrib-on);
  box-shadow: none;
}

button.contrib-cell.is-on:hover,
button.contrib-cell.is-on:focus-visible {
  filter: brightness(1.12);
}

button.contrib-cell:focus-visible {
  outline: 2px solid var(--contrib-on);
  outline-offset: 1px;
}

.contrib-tip {
  position: absolute;
  z-index: 8;
  max-width: min(16rem, 80vw);
  padding: 0.4rem 0.55rem;
  border-radius: 6px;
  background: var(--text);
  color: var(--page);
  font-size: 0.75rem;
  line-height: 1.35;
  pointer-events: none;
  transform: translate(-50%, calc(-100% - 8px));
}

.contrib-tip[hidden] {
  display: none;
}

.contrib-stats {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.contrib-stat-value {
  font-size: var(--text-body);
  line-height: var(--leading-tight);
}

.contrib-stat-label {
  margin-top: 0.2rem;
  font-size: 0.8125rem;
  line-height: var(--leading-normal);
  color: var(--text-faint);
}

/* Department sections */

.dept {
  padding-bottom: var(--space-section);
  scroll-margin-top: 5.5rem;
}

.dept-head {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.dept-head h2 {
  font-size: var(--text-body);
}

.dept-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.75rem;
  min-height: 1.5rem;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  background: var(--pill);
  color: var(--text-mid);
  font-size: 0.875rem;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

/* Cards */

.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 700px) {
  .grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.75rem;
  }
}

@media (min-width: 64em) {
  .grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 2rem;
  }
}

.card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--page);
  color: inherit;
  text-decoration: none;
  scroll-margin-top: 5.5rem;
  transition: border-color 180ms ease, transform 180ms ease;
}

a.card:hover {
  border-color: var(--text-quiet);
  transform: scale(1.012);
}

a.card:active {
  transform: scale(0.995);
}

.card-media {
  display: block;
  width: 100%;
  aspect-ratio: 8 / 5;
  object-fit: cover;
  object-position: center top;
  background: var(--card);
}

.card-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: clamp(1.25rem, 1rem + 1vw, 1.75rem);
}

.card-body h3 {
  font-size: var(--text-body);
  margin-bottom: 0.5rem;
}

.card-blurb {
  color: var(--text-quiet);
  font-size: var(--text-meta);
  line-height: var(--leading-relaxed);
  max-width: 42ch;
  margin-bottom: 1.25rem;
}

.card-people {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.card-people-rule {
  width: 1px;
  height: 1.25rem;
  flex-shrink: 0;
  background: var(--line);
}

.card-contributors {
  display: flex;
  align-items: center;
}

.card-contributors .card-person + .card-person {
  margin-left: -4px;
}

.card-person {
  position: relative;
  display: block;
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  border-radius: 50%;
  overflow: hidden;
  color: #fff;
  outline-offset: 2px;
}

.card-contributors .card-person:hover,
.card-contributors .card-person:focus-visible {
  z-index: 2;
}

.card-person img {
  width: 32px;
  height: 32px;
  object-fit: cover;
  border-radius: 50%;
}

.card-person-mark {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.55);
  color: #fff;
  opacity: 0;
  transition: opacity 180ms ease;
}

.card-person-mark svg {
  display: block;
  width: 14px;
  height: 14px;
  fill: currentColor;
}

.card-person:hover .card-person-mark,
.card-person:focus-visible .card-person-mark {
  opacity: 1;
}

.card-foot {
  margin-top: auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1rem;
}

.card-date {
  color: var(--text-faint);
  font-size: var(--text-meta);
  font-variant-numeric: tabular-nums;
  flex-shrink: 0;
}

.card-open {
  color: var(--text-faint);
  font-size: var(--text-meta);
  transition: color 180ms ease;
}

a.card:hover .card-open {
  color: var(--text);
}

.card-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
}

.card-action {
  flex: 1 1 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4em;
  min-height: 2.75rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  color: var(--text-quiet);
  font-size: var(--text-meta);
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  transition: color 180ms ease, border-color 180ms ease;
}

.card-action svg {
  display: block;
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

.card-action:hover,
.card-action:focus-visible {
  color: var(--text);
  border-color: var(--text-quiet);
}

.card-lock {
  display: inline-flex;
  color: var(--lock);
}

.card-lock svg {
  display: block;
  width: 16px;
  height: 16px;
}

/* Footer */

.site-footer {
  margin-top: 1rem;
  padding-block: 2.5rem;
  color: var(--text-quiet);
  font-size: var(--text-meta);
  line-height: var(--leading-normal);
}

.footer-note {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.footer-people .card-people {
  margin-bottom: 0;
}

@media (min-width: 700px) {
  .site-footer .split-grid {
    align-items: center;
  }

  .footer-note {
    justify-content: flex-end;
  }
}

/* Unlock password form (Staticrypt page) */

.unlock-screen {
  min-height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.unlock-panel {
  width: min(22rem, 100%);
  text-align: center;
}

.unlock-title {
  margin: 0 0 1.5rem;
  font-size: var(--text-body);
  font-weight: var(--font-regular);
  line-height: var(--leading-tight);
}

.unlock-form {
  width: 100%;
}

.unlock-field {
  margin: 0 0 1rem;
}

.unlock-field input[type="password"],
.unlock-field input[type="text"] {
  display: block;
  width: 100%;
  min-height: 2.75rem;
  padding: 0.65rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  color: var(--text);
  font: inherit;
  font-size: var(--text-meta);
  line-height: 1;
  text-align: left;
}

.unlock-field input::placeholder {
  color: var(--text-faint);
}

.unlock-remember {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  margin: 0 0 1.25rem;
  color: var(--text-quiet);
  font-size: var(--text-meta);
  line-height: var(--leading-normal);
  cursor: pointer;
}

.unlock-remember input[type="checkbox"] {
  width: 1rem;
  height: 1rem;
  margin: 0;
  accent-color: var(--text);
  flex-shrink: 0;
}

.unlock-error {
  margin: 0 0 1rem;
  color: var(--text);
  font-size: var(--text-meta);
  line-height: var(--leading-normal);
}

.unlock-submit {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 2.75rem;
  padding: 0.65rem 1rem;
  border: 0;
  border-radius: 999px;
  background: #000;
  color: #fff;
  font: inherit;
  font-size: var(--text-meta);
  line-height: 1;
  cursor: pointer;
}

.unlock-submit:hover {
  color: #fff;
  background: #000;
  opacity: 0.88;
}

@media (prefers-color-scheme: dark) {
  .unlock-submit {
    background: #fff;
    color: #000;
  }

  .unlock-submit:hover {
    background: #fff;
    color: #000;
  }
}

.footer-copy {
  color: var(--text);
}

.footer-note a:not(.card-person) {
  color: inherit;
  text-decoration: underline;
  text-decoration-color: var(--text-faint);
  text-underline-offset: 0.2em;
  transition: color 180ms ease, text-decoration-color 180ms ease;
}

.footer-note a:not(.card-person):hover {
  color: var(--text);
  text-decoration-color: var(--text);
}

.noscript {
  padding: 1.5rem var(--gutter);
  color: var(--text-quiet);
}

/* Reveal — added by script only when motion is allowed */

.reveal {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 500ms ease, transform 500ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }

  a.card:hover,
  a.card:active {
    transform: none;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}