:root {
  --paper: #f5f7f2;
  --surface: #ffffff;
  --ink: #14201a;
  --muted: #4d5d54;
  --rule: #c8d1c9;
  --crate: #1f5c45;
  --pen: #2038b8;
  --pen-dark: #172a8c;
  --danger: #b42318;
  --display: "Bricolage Grotesque", "Avenir Next", "Segoe UI", system-ui, sans-serif;
  --body: "Atkinson Hyperlegible", "Segoe UI", system-ui, sans-serif;
  --measure: 38rem;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 1.0625rem/1.6 var(--body);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--pen); text-underline-offset: 0.18em; }
a:hover { color: var(--pen-dark); }

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

code {
  font: 0.92em ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  background: #e8ede7;
  padding: 0.1em 0.35em;
  border-radius: 3px;
}

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

.skip {
  position: absolute; left: 1rem; top: -4rem; padding: 0.6rem 0.9rem;
  background: var(--ink); color: #fff; z-index: 10;
}
.skip:focus { top: 1rem; }

/* Page frame */
.top, main, footer { width: min(100% - 2.5rem, 68rem); margin-inline: auto; }

.top {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding-block: 1.25rem;
}
.top nav { display: flex; gap: 1.5rem; }
.top nav a { color: var(--ink); text-decoration: none; padding-block: 0.5rem; }
.top nav a:hover { text-decoration: underline; text-underline-offset: 0.25em; }

.brand {
  display: inline-flex; align-items: center; gap: 0.65rem;
  font: 800 1.3rem/1 var(--display); letter-spacing: -0.01em;
  color: var(--ink); text-decoration: none;
}
.mark { display: inline-flex; gap: 3px; }
.mark i { width: 0.7rem; height: 0.7rem; border: 2px solid var(--crate); display: block; }
.mark i.on { background: var(--crate); }

/* Hero */
.hero { padding-block: clamp(2rem, 6vw, 4.5rem) 1.25rem; }
h1 {
  margin: 0; font: 800 clamp(2.9rem, 9vw, 6rem)/0.95 var(--display);
  letter-spacing: -0.03em;
}
.lead { max-width: var(--measure); margin: 1.25rem 0 0; font-size: 1.15rem; color: var(--muted); }
.summary { margin: 1.25rem 0 0; font-weight: 700; color: var(--crate); min-height: 1.6em; }

/* Shift board */
.board { list-style: none; margin: 0; padding: 0; border-top: 2px solid var(--ink); }

.shift {
  display: grid; grid-template-columns: 5.5rem 1fr auto; gap: 0.5rem 1.5rem;
  align-items: center; padding-block: 1.4rem; border-bottom: 1px solid var(--rule);
}

.date { line-height: 1; }
.date .day { display: block; font: 800 3rem/1 var(--display); letter-spacing: -0.03em; }
.date .rest { display: block; margin-top: 0.3rem; color: var(--muted); font-size: 0.95rem; }

.shift h3 { margin: 0; font: 700 1.5rem/1.2 var(--display); letter-spacing: -0.01em; }
.when { margin: 0.2rem 0 0; color: var(--muted); }

.slots { display: flex; flex-wrap: wrap; gap: 5px; list-style: none; margin: 0.9rem 0 0.35rem; padding: 0; }
.slots li {
  width: 1.05rem; height: 1.05rem; border: 2px solid var(--crate); background: transparent;
}
.slots li.on { background: var(--crate); }
.count { margin: 0; font-size: 0.95rem; color: var(--muted); }

.btn {
  font: 700 1rem/1 var(--body); min-height: 2.9rem; padding: 0 1.4rem; cursor: pointer;
  background: var(--pen); color: #fff; border: 2px solid var(--pen); border-radius: 4px;
}
.btn:hover { background: var(--pen-dark); border-color: var(--pen-dark); }
.btn:disabled { cursor: not-allowed; background: transparent; color: var(--muted); border-color: var(--rule); }
.btn.quiet { background: transparent; color: var(--pen); }
.btn.quiet:hover { background: #e6e9f8; border-color: var(--pen); color: var(--pen-dark); }

.board-skeleton { height: 7.2rem; border-bottom: 1px solid var(--rule); background: linear-gradient(90deg, #eaeee8, #f5f7f2, #eaeee8); }

.board-error { padding: 1.4rem 0; border-bottom: 1px solid var(--rule); }
.board-error p { margin: 0 0 0.9rem; color: var(--danger); font-weight: 700; }

.note { max-width: var(--measure); margin: 1rem 0 0; color: var(--muted); font-size: 0.95rem; }

/* Sections */
main > section + section { margin-top: clamp(3rem, 8vw, 5.5rem); }
main > section:not(.hero):not(#shifts) { border-top: 2px solid var(--ink); padding-top: 1.25rem; }
h2 { margin: 0; font: 700 clamp(1.8rem, 4vw, 2.5rem)/1.1 var(--display); letter-spacing: -0.02em; }
.intro { max-width: var(--measure); margin: 0.9rem 0 0; }

/* Services */
.services { list-style: none; margin: 1.75rem 0 0; padding: 0; }
.services li {
  display: grid; grid-template-columns: 11rem 1fr 6rem 9rem; gap: 0.25rem 1.5rem;
  align-items: baseline; padding-block: 1.1rem; border-bottom: 1px solid var(--rule);
}
.services h3 { margin: 0; font: 700 1.1rem/1.3 ui-monospace, "SF Mono", Menlo, Consolas, monospace; }
.services p, .flows p { margin: 0; }
.tag {
  justify-self: start; padding: 0.15rem 0.6rem; font-weight: 700; font-size: 0.9rem;
  border: 2px solid var(--pen); border-radius: 999px; color: var(--pen);
}
.tag.closed { border-style: dashed; border-color: var(--ink); color: var(--ink); }
.port { color: var(--muted); font-size: 0.95rem; }

/* Flows */
.flows { list-style: none; margin: 1.75rem 0 0; padding: 0; }
.flows li { padding-block: 1.25rem; border-bottom: 1px solid var(--rule); }
.flows h3 { margin: 0 0 0.6rem; font: 700 1.3rem/1.2 var(--display); letter-spacing: -0.01em; }
.flows dl { display: grid; grid-template-columns: 1fr 1.7fr 1.2fr; gap: 1rem 2rem; margin: 0; }
.flows dt { font-size: 0.9rem; font-weight: 700; color: var(--crate); }
.flows dd { margin: 0.1rem 0 0; }

.links { display: flex; flex-wrap: wrap; gap: 0.75rem 2rem; list-style: none; margin: 1.5rem 0 0; padding: 0; font-weight: 700; }

footer { margin-top: 4.5rem; padding-block: 1.5rem 3rem; border-top: 1px solid var(--rule); color: var(--muted); font-size: 0.95rem; }
footer p { margin: 0; }

/* Dialog */
dialog {
  width: min(100% - 2rem, 28rem); padding: 1.75rem; border: 2px solid var(--ink);
  border-radius: 6px; background: var(--surface); color: var(--ink);
}
dialog::backdrop { background: rgba(20, 32, 26, 0.55); }
dialog h2 { font-size: 1.75rem; }
.dialog-shift { margin: 0.4rem 0 1.25rem; color: var(--muted); }

label { display: block; margin-top: 1rem; font-weight: 700; }
.optional { font-weight: 400; color: var(--muted); }
input {
  width: 100%; min-height: 2.9rem; margin-top: 0.3rem; padding: 0 0.75rem;
  font: inherit; color: var(--ink); background: #fff; border: 2px solid #7d8c83; border-radius: 4px;
}
input[aria-invalid="true"] { border-color: var(--danger); }
.error { margin: 0.35rem 0 0; color: var(--danger); font-size: 0.95rem; font-weight: 700; }
.actions { display: flex; gap: 0.75rem; margin-top: 1.5rem; }

/* The one moment of motion: filled places appear in order when the board loads. */
@media (prefers-reduced-motion: no-preference) {
  .slots li.on { animation: fill 0.35s ease-out backwards; animation-delay: calc(var(--i) * 45ms + 150ms); }
  @keyframes fill { from { transform: scale(0); } to { transform: scale(1); } }
}

@media (max-width: 52rem) {
  .services li { grid-template-columns: 1fr auto; }
  .services li p:nth-of-type(1) { grid-column: 1 / -1; grid-row: 2; }
  .services h3 { grid-column: 1; }
  .services .tag { grid-column: 2; grid-row: 1; }
  .services .port { grid-column: 1 / -1; }
  .flows dl { grid-template-columns: 1fr; gap: 0.6rem; }
}

@media (max-width: 40rem) {
  .top { flex-direction: column; align-items: flex-start; gap: 0.25rem; }
  .shift { grid-template-columns: 4.2rem 1fr; }
  .date .day { font-size: 2.4rem; }
  .shift .btn { grid-column: 1 / -1; width: 100%; }
  .actions { flex-direction: column-reverse; }
  .actions .btn { width: 100%; }
}