/* acmewiz -- one stylesheet, no framework, no web fonts. */

:root {
  /* Light only, deliberately: there is no dark palette below, so tell the
     browser not to render native controls, scrollbars and form fields dark on
     a machine set to dark. Without this the inputs go dark on a light page. */
  color-scheme: light;

  /* One knob for the whole type scale. Every font-size below is in rem, so
     this percentage scales all of them together and still respects a reader
     who has changed their browser's default text size. 87.5% of the usual
     16px is 14px. */
  font-size: 87.5%;

  --bg:        #f6f7f9;
  --surface:   #ffffff;
  --surface-2: #f0f2f5;
  --ink:       #16181d;
  --ink-soft:  #5b6170;
  --line:      #dfe3ea;
  --accent:    #1f6feb;
  --accent-ink:#ffffff;
  --ok:        #14804a;
  --warn-bg:   #fff6e5;
  --warn-line: #e5a93d;
  --warn-ink:  #6b4700;
  --code-bg:   #1c1f26;
  --code-ink:  #e6e9ef;
  --radius:    10px;
  --shadow:    0 1px 2px rgba(16, 24, 40, .06), 0 8px 24px rgba(16, 24, 40, .05);
}

* { box-sizing: border-box; }

/* Any element given its own display value would otherwise ignore the hidden
   attribute -- .toolbar is flex, and stayed on screen with nothing to copy. */
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.55;
  -webkit-text-size-adjust: 100%;
}

code, pre, .mono {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

.wrap { max-width: 860px; margin-inline: auto; padding-inline: 20px; }

a { color: var(--accent); }

/* ------------------------------------------------------------- header -- */
.site-header { padding-block: 40px 24px; }
.site-header h1 { margin: 0; font-size: 1.875rem; letter-spacing: -.02em; font-weight: 650; }
.site-header h1 span { color: var(--accent); }
.tagline { margin: 6px 0 16px; color: var(--ink-soft); }
.privacy {
  margin: 0;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--ok);
  border-radius: var(--radius);
  background: var(--surface);
  font-size: 0.875rem;
  color: var(--ink-soft);
}
.privacy strong { color: var(--ink); }

/* --------------------------------------------------------------- rail -- */
.rail {
  border-bottom: 1px solid var(--line); background: var(--surface);
  position: sticky; top: env(safe-area-inset-top, 0px); z-index: 5;
}
.rail ol {
  display: flex; gap: 4px; list-style: none; margin-block: 0;
  overflow-x: auto; scrollbar-width: none;
}
.rail ol::-webkit-scrollbar { display: none; }
.rail li { counter-increment: rail; flex: 0 0 auto; }
.rail-btn {
  appearance: none; background: none; border: 0; border-bottom: 2px solid transparent;
  padding: 14px 10px; font: inherit; font-size: 0.875rem; color: var(--ink-soft);
  cursor: pointer; white-space: nowrap;
}
.rail-btn::before { content: counter(rail) ". "; opacity: .6; }
.rail-btn:hover { color: var(--ink); }
.rail li.is-current .rail-btn { color: var(--accent); border-bottom-color: var(--accent); font-weight: 600; }

/* -------------------------------------------------------------- steps -- */
main { padding-block: 28px 56px; }

.step {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 26px;
  box-shadow: var(--shadow);
}
.step h2 { margin: 0 0 6px; font-size: 1.3125rem; letter-spacing: -.01em; }
.lede { margin: 0 0 22px; color: var(--ink-soft); }

.field { margin: 0 0 18px; }
.field:last-child { margin-bottom: 0; }
.field > label {
  display: block; margin-bottom: 6px; font-size: 0.875rem; font-weight: 600;
}
.optional {
  font-weight: 400; font-size: 0.75rem; color: var(--ink-soft);
  border: 1px solid var(--line); border-radius: 999px; padding: 1px 7px; margin-left: 6px;
}

input[type=text], input[type=url], input[type=email], input[type=password], input[type=number],
select, textarea {
  width: 100%; padding: 9px 11px;
  font: inherit; font-size: 0.9375rem;
  color: var(--ink); background: var(--surface-2);
  border: 1px solid var(--line); border-radius: var(--radius);
}
textarea { resize: vertical; min-height: 76px; }
input:focus-visible, select:focus-visible, textarea:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 1px;
}
input.invalid, select.invalid, textarea.invalid { border-color: #d93025; }

.help { margin: 6px 0 0; font-size: 0.8125rem; color: var(--ink-soft); }
.help code { font-size: 0.78125rem; background: var(--surface-2); padding: 1px 4px; border-radius: 4px; }
.err { margin: 6px 0 0; font-size: 0.8125rem; color: #d93025; }

.field-group {
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px; margin: 0 0 18px;
}
.field-group legend { padding: 0 6px; font-size: 0.875rem; font-weight: 600; }
.pill {
  font-size: 0.6875rem; font-weight: 600; text-transform: uppercase; letter-spacing: .04em;
  background: var(--surface-2); border: 1px solid var(--line); color: var(--ink-soft);
  border-radius: 999px; padding: 2px 8px; margin-left: 6px; vertical-align: 1px;
}
.pill.req { background: var(--warn-bg); border-color: var(--warn-line); color: var(--warn-ink); }

.reveal {
  margin-top: 6px; background: none; border: 1px solid var(--line); border-radius: 6px;
  padding: 3px 9px; font: inherit; font-size: 0.75rem; color: var(--ink-soft); cursor: pointer;
}
.reveal:hover { color: var(--ink); }

/* ------------------------------------------------------------ choices -- */
.choices { display: grid; gap: 10px; }
.choice {
  display: flex; gap: 10px; align-items: flex-start;
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 12px 14px; cursor: pointer; background: var(--surface-2);
}
.choice small { display: block; color: var(--ink-soft); font-size: 0.8125rem; }
.choice:has(input:checked) { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent) inset; }
.choice input { margin-top: 3px; accent-color: var(--accent); }

.cards { display: grid; gap: 12px; }
.card {
  display: flex; gap: 12px; align-items: flex-start;
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px; cursor: pointer; background: var(--surface-2);
}
.card:has(input:checked) { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent) inset; }
.card input { margin-top: 4px; accent-color: var(--accent); }
.card-name { font-weight: 650; }
.card-blurb { color: var(--ink-soft); font-size: 0.875rem; margin: 2px 0 0; }

.advanced { border-top: 1px solid var(--line); padding-top: 14px; }
.advanced summary { cursor: pointer; font-size: 0.875rem; font-weight: 600; color: var(--ink-soft); }
.advanced summary:hover { color: var(--ink); }
.advanced > .field:first-of-type { margin-top: 16px; }

/* ------------------------------------------------------------ output -- */
.toolbar {
  display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between;
  margin-bottom: 18px;
}
.toolbar-actions { display: flex; gap: 8px; }
.switch { display: flex; gap: 8px; align-items: center; font-size: 0.875rem; color: var(--ink-soft); cursor: pointer; }
.switch input { accent-color: var(--accent); }

#toolbar-note { margin: 0 0 18px; }
#toolbar-note strong { color: var(--ink); }

.block { margin: 0 0 22px; }
.block-head { display: flex; gap: 10px; align-items: baseline; justify-content: space-between; margin-bottom: 7px; }
.block-title { font-size: 0.9375rem; font-weight: 650; }
.block-title .num { color: var(--ink-soft); font-weight: 500; }
.block-desc { margin: 0 0 8px; font-size: 0.84375rem; color: var(--ink-soft); }
.block-desc code { font-size: 0.78125rem; background: var(--surface-2); padding: 1px 4px; border-radius: 4px; }

pre.code {
  margin: 0; padding: 14px 16px;
  background: var(--code-bg); color: var(--code-ink);
  border-radius: var(--radius); overflow-x: auto;
  font-size: 0.84375rem; line-height: 1.6; tab-size: 2;
}
pre.code .secret { color: #ffb4a2; }

.copy {
  background: none; border: 1px solid var(--line); border-radius: 6px;
  padding: 3px 10px; font: inherit; font-size: 0.75rem; color: var(--ink-soft); cursor: pointer; flex: 0 0 auto;
}
.copy:hover { color: var(--ink); border-color: var(--ink-soft); }
.copy.done { color: var(--ok); border-color: var(--ok); }

.note {
  border: 1px solid var(--warn-line); background: var(--warn-bg); color: var(--warn-ink);
  border-radius: var(--radius); padding: 11px 14px; margin: 0 0 12px; font-size: 0.875rem;
}
.note strong { font-weight: 650; }
.note.ok { border-color: var(--ok); background: var(--surface-2); color: var(--ink); }
.note.ok strong { color: var(--ok); }
#link-note:not(:empty) { margin-bottom: 20px; }
.note code { background: rgba(0, 0, 0, .08); padding: 1px 4px; border-radius: 4px; }

#summary { margin-top: 26px; border-top: 1px solid var(--line); padding-top: 18px; }
#summary h3 { margin: 0 0 10px; font-size: 0.9375rem; }
.summary-grid {
  display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px;
  font-size: 0.875rem; margin: 0;
}
.summary-grid dt { color: var(--ink-soft); }
.summary-grid dd { margin: 0; word-break: break-word; }

/* ---------------------------------------------------------- not ready -- */
#not-ready h3 { margin: 0 0 4px; font-size: 1rem; }
#not-ready p { margin: 0 0 14px; color: var(--ink-soft); font-size: 0.875rem; }
.missing { display: grid; gap: 8px; margin: 0 0 4px; padding: 0; list-style: none; }
.missing li { display: flex; }
.missing button {
  display: flex; gap: 10px; align-items: baseline; width: 100%; text-align: left;
  font: inherit; font-size: 0.875rem; color: var(--ink); cursor: pointer;
  background: var(--surface-2); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 10px 14px;
}
.missing button:hover { border-color: var(--accent); }
.missing .where {
  flex: 0 0 auto; font-size: 0.75rem; color: var(--ink-soft);
  border: 1px solid var(--line); border-radius: 999px; padding: 1px 8px; background: var(--surface);
}
.missing .what { flex: 1 1 auto; }
.missing .go { flex: 0 0 auto; color: var(--accent); }

/* A step with something outstanding, marked only once the reader has asked
   for the commands -- before that it would be nagging about a form they are
   still filling in. */
.rail li.is-incomplete .rail-btn::after {
  content: ""; display: inline-block; width: 6px; height: 6px; margin-left: 6px;
  border-radius: 50%; background: var(--warn-line); vertical-align: 1px;
}

/* --------------------------------------------------------------- nav -- */
.nav { display: flex; gap: 10px; margin-top: 22px; }
.btn {
  appearance: none; font: inherit; font-size: 0.9375rem;
  padding: 10px 20px; border-radius: var(--radius);
  border: 1px solid var(--line); background: var(--surface); color: var(--ink);
  cursor: pointer;
}
.btn:hover { border-color: var(--ink-soft); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); font-weight: 600; }
.btn.primary:hover { filter: brightness(1.08); }
.btn[hidden] { display: none; }
#next { margin-left: auto; }

/* ------------------------------------------------------------ footer -- */
.site-footer {
  border-top: 1px solid var(--line); padding-block: 24px 40px;
  font-size: 0.84375rem; color: var(--ink-soft);
}
.site-footer p { margin: 0 0 8px; }
.links { display: flex; gap: 16px; flex-wrap: wrap; }

/* ------------------------------------------------------------- toast -- */
.toast {
  position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%);
  background: var(--ink); color: var(--bg);
  padding: 9px 16px; border-radius: 999px; font-size: 0.875rem; box-shadow: var(--shadow);
  z-index: 20;
}

@media (max-width: 600px) {
  .step { padding: 20px 16px; border-radius: 12px; }
  .site-header { padding-block: 28px 20px; }
  .nav {
    position: sticky; bottom: 0; background: var(--bg); margin-top: 16px;
    padding-block: 12px calc(12px + env(safe-area-inset-bottom, 0px));
  }
}