/* register.hankelsner.tech — public access-request page.
   Built on the house tokens in shared/hankelsner-ui-tokens.css.
   Light default, dark via :root[data-theme]. No external assets of any kind. */

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

/* The UA rule for [hidden] is only `display:none`, so ANY later display
   declaration (our .alert/.err/.btn flex rules) silently un-hides the element.
   This page hides things with the hidden attribute everywhere, so it has to win. */
[hidden] { display: none !important; }

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

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  /* Faint drafting-sheet grid — the house "engineering drawing" cue, kept quiet
     so it never fights the form. Pure CSS: no image request. */
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 88px 88px, 88px 88px;
  background-position: -1px -1px;
  background-attachment: fixed;
}
/* Wash the grid out toward the middle so the card sits on calm paper. */
body::before {
  content: "";
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background: radial-gradient(ellipse 90% 70% at 50% 22%, var(--bg) 34%, transparent 78%);
}

/* ---------- utilities ---------- */
.sr-only {
  position: absolute; width: 1px; height: 1px; margin: -1px;
  padding: 0; border: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap;
}
.skip {
  position: absolute; left: 12px; top: -60px; z-index: 100;
  background: var(--accent); color: var(--accent-ink);
  padding: 10px 16px; border-radius: var(--r-sm);
  font: 600 14px var(--sans); text-decoration: none;
  transition: top .15s ease;
}
.skip:focus { top: 12px; }

/* Focus is always visible and always the same shape. */
:where(a, button, input, textarea, [tabindex]):focus-visible {
  outline: 3px solid var(--accent-2);
  outline-offset: 2px;
  border-radius: 6px;
}
#main:focus, .h1:focus { outline: none; }

/* ---------- top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 40;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  -webkit-backdrop-filter: saturate(1.6) blur(10px);
  backdrop-filter: saturate(1.6) blur(10px);
  border-bottom: 1px solid var(--line);
}
.topwrap {
  max-width: 720px; margin: 0 auto; padding: 0 20px;
  height: 60px; display: flex; align-items: center; gap: 12px;
}
.mark {
  display: flex; align-items: center; gap: 9px;
  text-decoration: none; color: var(--ink);
  font: 700 13px/1 var(--sans); letter-spacing: .1em;
}
.mark-dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
  flex: none;
}
.mark-sep { color: var(--line-2); font-weight: 400; }
.mark-for { color: var(--accent); letter-spacing: .18em; }

.theme-btn {
  margin-left: auto;
  display: inline-flex; align-items: center; gap: 7px;
  background: var(--surface-2); border: 1px solid var(--line);
  color: var(--ink-2); border-radius: var(--r-pill);
  padding: 7px 14px; font: 600 12.5px/1 var(--sans);
  cursor: pointer; transition: border-color .15s, color .15s;
}
.theme-btn:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- layout ---------- */
main { display: block; }
.sheet { max-width: 560px; margin: 0 auto; padding: 44px 20px 8px; }

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r);
  box-shadow: var(--shadow);
  padding: 34px 32px 30px;
  animation: rise .28s cubic-bezier(.2, .7, .3, 1) both;
}
.panel-center, .panel-done { text-align: center; }
.panel-done { text-align: left; }
@keyframes rise { from { opacity: 0; transform: translateY(10px); } }
@media (prefers-reduced-motion: reduce) {
  .panel { animation: none; }
  * { transition-duration: .01ms !important; }
}
@media (max-width: 520px) {
  .sheet { padding: 26px 14px 8px; }
  .panel { padding: 26px 20px 24px; border-radius: var(--r-sm); }
}

.kicker {
  display: inline-block; margin: 0 0 14px;
  background: var(--accent-soft); color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 22%, transparent);
  border-radius: var(--r-pill);
  padding: 5px 12px; font: 600 11px/1 var(--sans);
  letter-spacing: .13em; text-transform: uppercase;
}
.h1 {
  margin: 0 0 10px;
  font: 700 clamp(25px, 5.4vw, 31px)/1.18 var(--sans);
  letter-spacing: -.02em; color: var(--ink);
}
.h1-center { text-align: center; }
.lede { margin: 0 0 26px; color: var(--ink-2); font-size: 15.5px; }
.lede-center { text-align: center; }
.lede strong.emailEcho {
  color: var(--ink); font-weight: 600;
  word-break: break-all; font-family: var(--mono); font-size: 14.5px;
}

/* ---------- fields ---------- */
.field { margin-bottom: 20px; }
label {
  display: block; margin-bottom: 7px;
  font: 600 13.5px/1.3 var(--sans); color: var(--ink);
}
.opt {
  font-weight: 500; color: var(--dim); font-size: 12px;
  text-transform: uppercase; letter-spacing: .08em; margin-left: 4px;
}
input[type="text"], input[type="email"], textarea {
  width: 100%; display: block;
  background: var(--inset); color: var(--ink);
  border: 1px solid var(--line-2); border-radius: var(--r-sm);
  padding: 12px 14px; font: 15px/1.5 var(--sans);
  transition: border-color .15s, background .15s, box-shadow .15s;
}
textarea { resize: vertical; min-height: 92px; }
input::placeholder, textarea::placeholder { color: var(--dim); opacity: .75; }
input:hover, textarea:hover { border-color: var(--accent-2); }
input:focus, textarea:focus {
  background: var(--surface); border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft); outline: none;
}
input:focus-visible, textarea:focus-visible { outline: none; }
.field.invalid input, .field.invalid textarea {
  border-color: var(--warn);
  background: color-mix(in srgb, var(--warn-soft) 60%, var(--inset));
}
.field.invalid input:focus, .field.invalid textarea:focus {
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--warn) 22%, transparent);
}

.hint { margin: 7px 2px 0; font-size: 12.8px; color: var(--dim); }
/* Once a field is in error, the how-to hint is just noise sitting between the
   input and the thing they need to read. The counter row stays — it is data. */
.field.invalid .hint:not(.hint-row) { display: none; }
.hint-row { display: flex; justify-content: space-between; gap: 12px; }
.hint-center { text-align: center; min-height: 18px; }
.counter { font-family: var(--mono); font-size: 12px; white-space: nowrap; }
.counter.near { color: var(--warn); }
.err {
  margin: 7px 2px 0; font: 600 13px/1.45 var(--sans); color: var(--warn);
  display: flex; gap: 6px; align-items: flex-start;
}
.err::before { content: "▲"; font-size: 9px; line-height: 1.7; flex: none; }

.code-input {
  font: 600 26px/1.2 var(--mono);
  letter-spacing: .42em; text-indent: .42em;
  text-align: center; padding: 15px 10px;
}
.code-input::placeholder { letter-spacing: .42em; opacity: .35; }

/* ---------- buttons ---------- */
.btn {
  position: relative;
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  border-radius: var(--r-sm); border: 1px solid transparent;
  padding: 13px 22px; font: 600 15px/1 var(--sans);
  cursor: pointer; transition: background .15s, border-color .15s, color .15s, opacity .15s;
}
.btn-block { width: 100%; }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover:not(:disabled) { background: var(--accent-2); }
.btn-ghost {
  background: var(--surface-2); color: var(--ink-2);
  border-color: var(--line-2); font-size: 14px; padding: 11px 18px;
}
.btn-ghost:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); }
.btn-link {
  background: none; color: var(--dim); border: none;
  font-size: 13.5px; font-weight: 500; text-decoration: underline;
  text-underline-offset: 3px; padding: 11px 10px;
}
.btn-link:hover { color: var(--accent); }

.row-actions {
  display: flex; align-items: center; justify-content: space-between;
  gap: 10px; flex-wrap: wrap; margin-top: 18px;
  padding-top: 18px; border-top: 1px solid var(--line);
}

/* ---------- spinner ---------- */
.spinner {
  display: none; width: 16px; height: 16px; flex: none;
  border: 2px solid color-mix(in srgb, currentColor 30%, transparent);
  border-top-color: currentColor; border-radius: 50%;
  animation: spin .7s linear infinite;
}
.btn.busy .spinner { display: block; }
.spinner-lg {
  display: block; width: 30px; height: 30px; border-width: 3px;
  color: var(--accent); margin: 6px auto 20px;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- alerts ---------- */
.alert {
  display: flex; gap: 11px; align-items: flex-start;
  border-radius: var(--r-sm); padding: 13px 15px; margin: 0 0 22px;
  font-size: 14px; line-height: 1.5; text-align: left;
  border: 1px solid transparent;
}
.alert-icon {
  flex: none; width: 20px; height: 20px; border-radius: 50%;
  display: grid; place-items: center;
  font: 700 12px/1 var(--sans); margin-top: 1px;
}
.alert-warn {
  background: var(--warn-soft); color: var(--warn);
  border-color: color-mix(in srgb, var(--warn) 30%, transparent);
}
.alert-warn .alert-icon { background: var(--warn); color: var(--surface); }
.alert-ok {
  background: var(--ok-soft); color: var(--ok);
  border-color: color-mix(in srgb, var(--ok) 30%, transparent);
}
.alert-ok .alert-icon { background: var(--ok); color: var(--surface); }

/* ---------- done screen ---------- */
.seal {
  width: 64px; height: 64px; margin: 0 auto 18px;
  border-radius: 50%; display: grid; place-items: center;
  background: var(--ok-soft); color: var(--ok);
  border: 1px solid color-mix(in srgb, var(--ok) 32%, transparent);
}
.seal-warn {
  background: var(--warn-soft); color: var(--warn);
  border-color: color-mix(in srgb, var(--warn) 32%, transparent);
}
.expect {
  margin: 26px 0 0; padding: 20px 22px;
  background: var(--surface-2); border: 1px solid var(--line);
  border-radius: var(--r-sm);
}
.expect-h {
  margin: 0 0 12px; font: 600 12px/1 var(--sans);
  letter-spacing: .13em; text-transform: uppercase; color: var(--dim);
}
.steps { margin: 0; padding-left: 20px; color: var(--ink-2); font-size: 14.5px; }
.steps li { margin-bottom: 11px; }
.steps li:last-child { margin-bottom: 0; }
.steps strong { color: var(--ink); }

.fineprint {
  margin: 22px 0 0; font-size: 12.6px; line-height: 1.55; color: var(--dim);
}
.fineprint-center { text-align: center; }

/* ---------- footer ---------- */
.foot {
  max-width: 560px; margin: 0 auto; padding: 26px 20px 40px;
  display: flex; align-items: center; justify-content: center;
  gap: 10px; flex-wrap: wrap;
  font-size: 12.5px; color: var(--dim); letter-spacing: .03em;
}
.foot-sep { color: var(--line-2); }

/* Fallback for browsers without color-mix (older Safari/Firefox ESR). */
@supports not (color: color-mix(in srgb, red 50%, blue)) {
  .topbar { background: var(--surface); }
  .kicker, .alert { border-color: var(--line); }
  .field.invalid input, .field.invalid textarea { background: var(--warn-soft); }
  .seal { border-color: var(--line); }
}