/* avianvisitors.com register page.
   White ground, one ink, one narrow column. Monochrome except the error red.
   Type is the frame's voice (serif + JetBrains Mono); corners are continuous
   squircles drawn by corners.js from the border-radius set here, the same
   system as theodore.net. No dashes, no shadows, no green. */

:root {
  --bg: #ffffff;
  --ink: #1a1a1c;
  --ink-2: #45454b;
  --muted: #71706b;
  --faint: #b3b1ab;
  --line: #e2e1dc;
  --red: #a53c38;
  --serif: ui-serif, "Iowan Old Style", "Apple Garamond", Georgia, serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --r: 14px;
}

@font-face {
  font-family: "JetBrains Mono";
  src: url("/bundles/assets/fonts/JetBrainsMono-Regular.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
::selection { background: rgba(26, 26, 28, 0.10); }

/* Links are ink, never browser blue: a hairline underline that darkens on
   hover. Louder contexts (the colophon, nav buttons) override below. */
a { color: var(--ink); text-decoration: underline; text-decoration-color: var(--faint);
    text-decoration-thickness: 1px; text-underline-offset: 3px;
    transition: text-decoration-color 140ms ease; }
a:hover { text-decoration-color: var(--ink); }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--serif);
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: max(9svh, 56px) 24px 32px;
}

main {
  width: 100%; max-width: 400px;
  flex: 1 1 auto;
  display: flex; flex-direction: column;
}
main > section, main > header { width: 100%; }

/* ---- header: the family voice ---- */
.head { text-align: center; margin-bottom: 44px; }
.head .pre {
  margin: 0 0 10px;
  font-style: italic;
  font-size: 16px;
  letter-spacing: 0.06em;
  color: var(--muted);
}
.head h1 {
  margin: 0;
  font-weight: 400;
  font-size: clamp(42px, 12vw, 54px);
  line-height: 0.95;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* ---- the one field, with its inline arrow ---- */
.fieldrow {
  position: relative;
  display: flex;
  align-items: center;
  background: var(--bg);
  border: 1.2px solid var(--line);
  border-radius: var(--r);
  /* No border-color transition: corners.js repaints the border as a squircle
     ring per state change, and a transition poisons its color read. */
}
/* Focus lifts the border toward ink without going fully dark. */
.fieldrow:focus-within { border-color: var(--muted); }
.fieldrow.bad { border-color: var(--red); }
.fieldrow.bad input { color: var(--red); }
/* A murmur, not a rattle: 2px peak, damped fast. */
.fieldrow.shake { animation: shake 300ms cubic-bezier(.36,.07,.19,.97); }
@keyframes shake {
  20%, 60% { transform: translateX(-2px); }
  40%, 80% { transform: translateX(2px); }
  90% { transform: translateX(-1px); }
}

.fieldrow input {
  flex: 1 1 auto;
  min-width: 0;
  border: 0;
  background: none;
  outline: none;
  color: var(--ink);
  padding: 15px 6px 15px 18px;
  font-family: var(--serif);
  font-size: 17px;
}
.fieldrow input::placeholder { color: var(--faint); }

/* the code field speaks mono, at ticket weight */
#rail { padding-left: 18px; }
#rail .hash {
  font-family: var(--mono);
  font-size: 24px;
  color: var(--faint);
  transition: color 160ms ease;
}
#rail:focus-within .hash { color: var(--muted); }
#rail.bad .hash { color: var(--red); }
#rail input {
  font-family: var(--mono);
  font-size: 22px;
  letter-spacing: 0.18em;
  padding: 16px 6px 16px 12px;
}

@media (max-width: 360px) {
  body { padding-inline: 18px; }
  #rail { padding-left: 14px; }
  #rail .hash { font-size: 21px; }
  #rail input {
    font-size: 20px;
    letter-spacing: 0.10em;
    padding-left: 9px;
  }
}

/* inline arrow: the field's own way forward */
.gobtn {
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
  margin: 6px 8px 6px 0;
  border: 0;
  border-radius: 11px;
  background: none;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: opacity 160ms ease, transform 120ms ease, background-color 160ms ease;
}
.gobtn:disabled { opacity: 0.22; cursor: default; }
.gobtn:not(:disabled):hover { background: #f4f3f0; }
.gobtn:not(:disabled):active { transform: scale(0.9); }
.gobtn svg { width: 22px; height: 22px; display: block; }
.gobtn .spin { display: none; }
.gobtn.busy .arrow { display: none; }
.gobtn.busy .spin { display: block; animation: spin 800ms linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.hint {
  margin: 18px 4px 0;
  text-align: center;
  font-style: italic;
  font-size: 14px;
  color: var(--faint);
}
.note {
  margin: 10px 4px 0;
  text-align: center;
  font-style: italic;
  font-size: 14.5px;
  color: var(--muted);
}
.note:empty { display: none; }
/* Registration errors must already exist in the accessibility tree before
   text is inserted, or some screen readers miss the live-region update. */
#pin-note:empty, #config-err:empty { display: block; margin-top: 0; }

/* ---- step two: the hello card's numbered steps, on white ---- */
.chip {
  display: block;
  width: fit-content;
  margin: 0 auto 34px;
  padding: 7px 16px;
  border: 1.2px solid var(--line);
  border-radius: 10px;
  font-family: var(--mono);
  font-size: 15px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

/* ---- Manage page ---- */
/* Account chip doubles as the sign-out menu trigger. */
.whorow { position: relative; width: fit-content; margin: 0 auto 26px; }
.who { margin: 0; cursor: pointer; background: var(--bg); }
.who[aria-expanded="true"] { color: var(--ink); border-color: var(--muted); }
.whomenu {
  position: absolute; top: calc(100% + 6px); left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; gap: 2px; white-space: nowrap;
  padding: 8px 14px; border: 1.2px solid var(--line); border-radius: 12px;
  background: var(--bg); z-index: 20;
}
.whomenu a { font-family: var(--mono); font-size: 13px; letter-spacing: 0.04em;
  text-decoration: none; color: var(--muted); padding: 3px 0; }
.whomenu a:hover { color: var(--ink); }

/* "Use a different email" back link under the sign-in field. */
#login-back { margin-top: 14px; }

/* Settings row: label on the left, control on the right (the website's
   settings language, in this page's flat monochrome palette). */
.setrow { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 3px 0; }
.setlabel { font-size: 16px; }
.setsub { display: block; font-size: 13px; font-style: italic; color: var(--muted); margin-top: 1px; }

/* Toggle switch: a pill that fills ink and slides its knob when on. */
.switch {
  position: relative; flex: 0 0 auto; width: 42px; height: 24px;
  appearance: none; -webkit-appearance: none;
  border: 1.2px solid var(--line); border-radius: 999px; background: var(--bg);
  cursor: pointer; padding: 0;
  transition: background 180ms ease, border-color 180ms ease;
}
.switch::after {
  content: ""; position: absolute; top: 2px; left: 2px; width: 18px; height: 18px;
  background: var(--faint); border-radius: 999px;
  transition: transform 220ms cubic-bezier(.7, .05, .2, 1), background 180ms ease;
}
.switch[aria-checked="true"] { background: var(--ink-2); border-color: var(--ink-2); }
.switch[aria-checked="true"]::after { transform: translateX(18px); background: var(--bg); }
.switch:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }

/* Frame cards: full-width settings, no number badge. */
.fcard { padding: 6px 0; border-top: 1.2px solid var(--line); }
.fcard:first-child { border-top: 0; }
.fcard .stephead {
  display: flex; align-items: baseline; gap: 12px; width: 100%;
  padding: 16px 0; background: none; border: 0; cursor: pointer; text-align: left;
}
.fcard .steptitle { flex: 1 1 auto; min-width: 0; }
.fcard .chev {
  flex: 0 0 auto; width: 9px; height: 9px; align-self: center;
  border-right: 1.4px solid var(--faint); border-bottom: 1.4px solid var(--faint);
  transform: rotate(45deg); transition: transform 200ms ease, border-color 140ms ease;
}
.fcard.open .chev { transform: rotate(225deg); border-color: var(--ink); }
/* The accordion open-state is otherwise scoped to .step.open; give cards
   the same slide + fade when they open. */
.fcard.open .stepwrap { grid-template-rows: 1fr; }
.fcard.open .stepbody { opacity: 1; }
/* Cards carry no number badge, so their body isn't indented for one: the
   fields and Save button span the full card width. */
.fcard .stepbody { margin-left: 0; padding-top: 4px; }

/* Settings groups inside a card. */
.mgroup { margin: 4px 0 20px; }
.mglabel {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--faint); margin-bottom: 8px;
}
.mgroup .fwrap { margin: 8px 0 0; }
.mgroup .opt { padding: 2px 0; }
.mgroup.gen { margin-top: 20px; padding-top: 16px; border-top: 1.2px solid var(--line); margin-bottom: 8px; }

/* Advanced: collapsed by default. Everything here is rare or destructive, so
   it stays out of the way until asked for. Its own chevron class, NOT .chev -
   this block sits inside a .fcard, and .fcard.open .chev would rotate it
   whenever the CARD opened, which is not what it reports on. */
.adv .advhead {
  display: flex; align-items: center; gap: 8px; width: 100%;
  padding: 2px 0 0; background: none; border: 0; cursor: pointer; text-align: left;
}
.adv .advhead .mglabel { margin-bottom: 0; flex: 1 1 auto; }
/* The chevron sits immediately after the label, small enough to read as part
   of the same line rather than as a control of its own. Nudged up because the
   label is uppercase mono: its optical centre is above the box centre, so a
   glyph aligned to the box looks low against it. */
.adv .advchev {
  flex: 0 0 auto; width: 5px; height: 5px; margin-top: -3px;
  border-right: 1.3px solid var(--faint); border-bottom: 1.3px solid var(--faint);
  transform: rotate(45deg);
  transition: transform 200ms ease, border-color 140ms ease;
}
.adv.open .advchev { transform: rotate(225deg); border-color: var(--ink); }
/* The two advanced actions sit on one line: they are peers, and stacking two
   short buttons full-width made a small section look like a form. */
.adv .advbody { display: none; }
/* One row, no wrapping: the two actions share the width evenly, and the type is
   tightened just enough that both labels fit the 400px column. */
.adv.open .advbody { display: flex; flex-wrap: nowrap; gap: 8px; align-items: stretch; padding-top: 14px; }
.adv .advbody > button { flex: 1 1 0; min-width: 0; white-space: nowrap; }
/* Ordinary advanced action: same shape as the destructive one so the two read
   as a set, but in ink rather than red - only one of them is irreversible. */
.quietbtn {
  display: block;
  width: auto; padding: 9px 10px;
  border: 1.2px solid var(--line); border-radius: 11px;
  background: var(--bg); color: var(--ink);
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.07em;
  text-transform: uppercase; cursor: pointer;
  transition: background-color 160ms ease, color 160ms ease, border-color 160ms ease, transform 120ms ease;
}
.quietbtn:hover { border-color: var(--ink); }
.quietbtn:active { transform: scale(0.985); }
.quietbtn:disabled { opacity: 0.4; cursor: default; }
.quietbtn:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }

/* Destructive action: reads as red and as a button, so it can't be mistaken
   for ordinary navigation. Still two-tap armed in manage.js. */
.dangerbtn {
  width: auto; padding: 9px 10px;
  border: 1.2px solid var(--line); border-radius: 11px;
  background: var(--bg); color: var(--red);
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.07em;
  text-transform: uppercase; cursor: pointer;
  transition: border-color 160ms ease, transform 120ms ease;
}
/* The outline darkens rather than the button filling in. A block of red for a
   thing you have not committed to yet shouts; the red lettering already says
   which of the two actions is the irreversible one. */
.dangerbtn:hover { border-color: var(--red); }
.dangerbtn:active { transform: scale(0.985); }
.dangerbtn.armed { border-color: var(--red); }
.dangerbtn:focus-visible { outline: 2px solid var(--red); outline-offset: 2px; }
.faintnote { color: var(--faint); font-size: 12.5px; margin-top: 8px; }

/* The data-source dropdown, dressed like a field row. */
.selrow { padding: 0; }
.selrow select {
  width: 100%; appearance: none; -webkit-appearance: none;
  padding: 13px 40px 13px 15px; border: 0; background: transparent;
  font-family: var(--serif); font-size: 17px; color: var(--ink); cursor: pointer;
  border-radius: var(--r);
}
.selrow { position: relative; }
.selrow::after {
  content: ""; position: absolute; right: 16px; top: 50%; width: 8px; height: 8px;
  border-right: 1.4px solid var(--muted); border-bottom: 1.4px solid var(--muted);
  transform: translateY(-70%) rotate(45deg); pointer-events: none;
}
.mgroup .bigbtn, #view-frames .bigbtn { margin-top: 8px; }

/* Accordion steps: every section always visible, one open at a time.
   Height rides the 0fr/1fr grid trick so the browser owns the math and the
   slide stays honest whatever the section contains. */
fieldset { border: 0; margin: 0; padding: 0; min-inline-size: 0; }
.step { padding: 22px 0; }
.step + .step { border-top: 1.2px solid var(--line); }

.stepheading { margin: 0; font: inherit; }

.stephead {
  display: grid;
  grid-template-columns: 56px 1fr;
  align-items: start;
  width: 100%;
  padding: 0;
  border: 0;
  background: none;
  text-align: left;
  cursor: pointer;
  font: inherit;
  color: inherit;
}
.stepnum {
  font-family: var(--mono);
  font-size: 42px;
  line-height: 0.9;
  margin-top: 2px;
  color: var(--faint);
  transition: color 240ms ease;
}
.step.open .stepnum { color: var(--ink); }
.steptitle { min-width: 0; }
.steptitle .stepname {
  display: block;
  margin: 4px 0 0;
  font-weight: 400;
  font-size: 20px;
  letter-spacing: 0.01em;
  color: var(--muted);
  transition: color 240ms ease;
}
.step.open .steptitle .stepname { color: var(--ink); }
/* the quiet summary a finished, folded section keeps */
.stepsum {
  display: block;
  margin-top: 3px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--faint);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.step.open .stepsum, .stepsum:empty { display: none; }

.stepwrap {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 300ms cubic-bezier(.2, .7, .3, 1);
}
.step.open .stepwrap { grid-template-rows: 1fr; }
.stepbody {
  overflow: hidden;
  min-height: 0;
  margin-left: 56px;
  padding-top: 10px;
  opacity: 0;
  transition: opacity 220ms ease;
}
.step.open .stepbody { opacity: 1; }
.stepbody .sub {
  margin: 0 0 12px;
  font-style: italic;
  font-size: 14px;
  color: var(--muted);
}

/* radios: small ink circles, nothing louder */
.opt { display: flex; gap: 12px; align-items: baseline; padding: 7px 0; cursor: pointer; position: relative; }
.opt input { position: absolute; opacity: 0; pointer-events: none; }
.opt .dot {
  flex: 0 0 auto;
  width: 17px; height: 17px;
  border: 1.2px solid var(--faint);
  border-radius: 50%;
  position: relative;
  top: 2px;
  transition: border-color 140ms ease;
}
.opt input:checked + .dot { border-color: var(--ink); }
.opt input:checked + .dot::after {
  content: "";
  position: absolute; inset: 3.5px;
  border-radius: 50%;
  background: var(--ink);
}
.opt input:focus-visible + .dot { outline: 2px solid var(--ink); outline-offset: 2px; }
/* checkboxes: a rounded square, not a circle; the fill squares off too */
.opt input[type="checkbox"] + .dot { border-radius: 5px; }
.opt input[type="checkbox"]:checked + .dot::after { border-radius: 2px; }
.opt .opt-name { font-size: 17px; }
.opt .opt-sub { display: block; font-style: italic; font-size: 13.5px; color: var(--muted); margin-top: 1px; }

.fwrap { margin: 10px 0 4px; }
.fwrap input { font-family: var(--mono); font-size: 16px; letter-spacing: 0.04em; }
.fwrap input.serif { font-family: var(--serif); font-size: 17px; letter-spacing: 0; }

/* the finish button: outlined, mono, inverts on hover */
.bigbtn {
  width: 100%;
  margin-top: 34px;
  padding: 15px 18px;
  border: 1.2px solid var(--ink);
  border-radius: var(--r);
  background: var(--bg);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 15px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background-color 160ms ease, color 160ms ease, transform 120ms ease;
}
.bigbtn:not(:disabled):hover { background: var(--ink); color: var(--bg); }
.bigbtn:not(:disabled):active { transform: scale(0.985); }
.bigbtn:disabled { opacity: 0.4; cursor: default; }

/* ---- done ---- */
#step-done { text-align: center; padding-top: 8px; }
.donecheck {
  width: 64px; height: 64px;
  margin: 6px auto 30px;
  border: 1.2px solid var(--ink);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
}
.donecheck svg { width: 30px; height: 30px; display: block; }
.donecheck .tick {
  stroke-dasharray: 34;
  stroke-dashoffset: 34;
  animation: draw 480ms 180ms cubic-bezier(.2,.7,.3,1) forwards;
}
@keyframes draw { to { stroke-dashoffset: 0; } }
.donelead {
  margin: 0 auto;
  max-width: 330px;
  font-size: 21px;
  line-height: 1.45;
}
.donesub {
  margin: 18px 0 0;
  font-style: italic;
  font-size: 15px;
  color: var(--muted);
}

/* ---- footer ---- */
.colophon {
  margin-top: auto;
  padding-top: 64px;
  text-align: center;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.22em;
}
.colophon a { color: var(--faint); text-decoration: none; transition: color 140ms ease; }
.colophon a:hover { color: var(--ink); }
.colophon .sep { color: var(--faint); margin: 0 6px; }
/* The eyebrow is the way back to the front of the site. */
.head .pre .home { color: inherit; text-decoration: none; }
.head .pre .home:hover { text-decoration: underline; text-decoration-color: var(--faint);
  text-underline-offset: 3px; }

/* ---- questions ----
   Kept in the external stylesheet so the FAQ remains compatible with the
   page's strict style-src 'self' policy. */
.faq { width: 100%; }
.q { border-top: 1.2px solid var(--line); }
.q:first-of-type { border-top: 0; }
.q > summary {
  display: flex; align-items: baseline; gap: 14px;
  padding: 20px 0; cursor: pointer; list-style: none;
  font-size: 17px; line-height: 1.4;
}
.q > summary::-webkit-details-marker { display: none; }
.q > summary::after {
  content: ""; flex: 0 0 auto; margin-left: auto; align-self: center;
  width: 6px; height: 6px; margin-top: -3px;
  border-right: 1.3px solid var(--faint); border-bottom: 1.3px solid var(--faint);
  transform: rotate(45deg); transition: transform 200ms ease, border-color 140ms ease;
}
.q[open] > summary::after { transform: rotate(225deg); border-color: var(--ink); }
.q > summary:hover::after { border-color: var(--muted); }
.a { padding: 0 0 26px; max-width: 62ch; }
.a p { margin: 0 0 14px; font-size: 15.5px; line-height: 1.62; color: var(--ink); }
.a p:last-child { margin-bottom: 0; }
.a ol { margin: 0 0 14px; padding-left: 20px; }
.a li { font-size: 15.5px; line-height: 1.62; margin-bottom: 8px; }
.a code {
  font-family: var(--mono); font-size: 0.88em;
  border: 1.2px solid var(--line); border-radius: 6px; padding: 1px 6px;
  white-space: nowrap;
}
.a figure { margin: 20px 0; }
.a img {
  display: block; width: 100%; height: auto;
  border: 1.2px solid var(--line); border-radius: 12px; background: var(--bg);
}
.a figure.glass img { border-radius: 4px; }
.a figcaption {
  margin-top: 8px; font-size: 13px; font-style: italic; color: var(--faint);
}
.a .aside { color: var(--muted); font-size: 14.5px; }
.faqhead { text-align: center; margin-bottom: 40px; }
.faqhead .pre { margin: 0 0 10px; font-style: italic; font-size: 16px; color: var(--muted); }
.faqhead h1 {
  margin: 0; font-weight: 400; font-size: clamp(38px, 11vw, 50px);
  line-height: 0.95; letter-spacing: 0.05em; text-transform: uppercase;
}
.foot { margin: 48px 0 0; text-align: center; }
.foot a { font-family: var(--mono); font-size: 13px; letter-spacing: 0.04em; text-decoration: none; color: var(--muted); }
.foot a:hover { color: var(--ink); }
.foot .sep { color: var(--faint); font-family: var(--mono); font-size: 13px; margin: 0 4px; }
.pre .home { color: inherit; text-decoration: none; }
.pre .home:hover { text-decoration: underline; text-decoration-color: var(--faint);
  text-underline-offset: 3px; }
.a .ast { text-decoration: none; color: var(--faint); font-size: 0.8em; vertical-align: super; }
.a .ast:hover { color: var(--ink); }

@media (prefers-reduced-motion: reduce) {
  .fieldrow.shake, .gobtn.busy .spin, .donecheck .tick { animation: none; }
  .stepwrap, .stepbody { transition: none; }
  .donecheck .tick { stroke-dashoffset: 0; }
}

/* Site information: shared by the footer and policy pages. */
.policy-footer { letter-spacing: 0.04em; }
.policy-footer a { color: var(--muted); }
.policy-footer nav { display: flex; flex-wrap: wrap; justify-content: center; gap: 20px; margin-top: 14px; }
.policy-footer a:focus-visible { outline: 2px solid currentColor; outline-offset: 5px; }
.policy-main { max-width: 560px; }
.policy-main .faqhead { text-align: center; margin-bottom: 40px; }
.policy-main .faqhead .pre { margin: 0 0 10px; font-style: italic; font-size: 16px; color: var(--muted); }
.policy-main .faqhead h1 { margin: 0; font-weight: 400; font-size: clamp(38px, 11vw, 50px); line-height: 0.95; letter-spacing: 0.05em; text-transform: uppercase; }
.policy-main .home { color: inherit; text-decoration: none; }
.policy-main .home:hover { text-decoration: underline; text-underline-offset: 3px; }
.policy-copy { font-size: 17px; line-height: 1.65; }
.policy-copy h2 { margin: 32px 0 10px; font-size: 22px; font-weight: 400; line-height: 1.25; }
.policy-copy p { margin: 0 0 16px; }
.policy-copy ul { padding-left: 22px; }
.policy-copy li { margin: 0 0 12px; }
.policy-date { color: var(--muted); font: 11px/1.6 var(--mono); text-align: center; margin-bottom: 30px !important; }
.policy-copy a { overflow-wrap: anywhere; }

.bundle-main .policy-footer { flex-direction: column; }