/*
 * The Omxus sign-in: shape and behaviour. Colours and fonts are NOT here.
 *
 * SAME EVERYWHERE: the quiet card of docs/simple-examples/omxus_minimalist_auth.html
 * (ring mark, wordmark, underline fields with small uppercase labels), and
 * the primary button from docs/reference/marrs_green_button_showcase.html at
 * its defaults: a circle, 2.5px trim, a gloss, a lift on hover, a press on
 * click, a ripple from the point clicked (sdk/omxus-brand.js).
 * EACH SITE'S OWN: every colour and font, as --omxus-* tokens in one theme
 * file, sdk/themes/<name>.css plus <name>-dark.css, built from
 * sdk/themes/THEME-TABLE.csv. `npm run themes` fails if a colour is written
 * in this file; tints are color-mix() of a token.
 *
 *   <span class="omxus-press"><button class="omxus-press__face">
 *     <span class="omxus-press__gloss"></span><span class="omxus-press__label">Next</span>
 *   </button></span>
 */

/* ── The round button ─────────────────────────────────────────────────────── */
.omxus-press {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  width: var(--omxus-press-size, 220px);
  height: var(--omxus-press-size, 220px);
  border-radius: 50%;
  background: var(--omxus-trim);
  padding: 2.5px;
  box-shadow:
    10px 18px 28px -4px color-mix(in srgb, var(--omxus-shadow) 28%, transparent),
    4px 8px 12px -2px color-mix(in srgb, var(--omxus-shadow) 18%, transparent),
    0 0 0 1px color-mix(in srgb, var(--omxus-trim-edge) 30%, transparent);
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.25s ease;
  user-select: none;
  -webkit-user-select: none;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.omxus-press__face {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: inherit;
  background-color: var(--omxus-button);
  color: var(--omxus-button-label);
  font-family: var(--omxus-button-font);
  font-weight: var(--omxus-button-weight);
  font-size: var(--omxus-button-size);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  border: none;
  outline: none;
  padding: 0;
  overflow: hidden;
  cursor: inherit;
  transition: background-color 0.2s ease;
}
.omxus-press:has(.omxus-press__face:focus-visible) {
  outline: 2px solid var(--omxus-accent);
  outline-offset: 3px;
}
.omxus-press__gloss {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(135deg,
    color-mix(in srgb, var(--omxus-gloss) 28%, transparent) 0%,
    color-mix(in srgb, var(--omxus-gloss) 8%, transparent) 40%,
    transparent 60%);
  pointer-events: none;
}
.omxus-press__label { position: relative; z-index: 1; line-height: 1.1; max-width: 76%; white-space: nowrap; }
.omxus-press__label svg { display: block; width: 1.9em; height: 1.9em; margin: 0 auto; }
/* Busy: a thin turning ring in place of the label. */
.omxus-press__spin {
  position: relative; z-index: 1; display: none;
  width: 26px; height: 26px; border-radius: 50%;
  border: 2px solid color-mix(in srgb, currentColor 30%, transparent);
  border-top-color: currentColor;
  animation: omxus-spin 0.9s linear infinite;
}
.omxus-press[data-busy] .omxus-press__label { display: none; }
.omxus-press[data-busy] .omxus-press__spin { display: block; }
.omxus-press[data-busy], .omxus-press[data-done] { pointer-events: none; }
@keyframes omxus-spin { to { transform: rotate(360deg); } }

.omxus-press:hover {
  transform: translateY(-3px) scale(1.01);
  box-shadow:
    14px 24px 36px -4px color-mix(in srgb, var(--omxus-shadow) 32%, transparent),
    6px 12px 16px -2px color-mix(in srgb, var(--omxus-shadow) 22%, transparent),
    0 0 14px var(--omxus-glow);
}
.omxus-press:hover .omxus-press__face { background-color: var(--omxus-button-hover); }
.omxus-press:active {
  transform: translateY(3px) scale(0.98);
  box-shadow:
    3px 6px 10px -2px color-mix(in srgb, var(--omxus-shadow) 25%, transparent),
    1px 2px 4px -1px color-mix(in srgb, var(--omxus-shadow) 15%, transparent);
}
.omxus-press:active .omxus-press__face { background-color: var(--omxus-button-active); }
.omxus-press:has(.omxus-press__face:disabled) { opacity: 0.6; pointer-events: none; }

.omxus-press__ripple {
  position: absolute;
  border-radius: 50%;
  background: color-mix(in srgb, var(--omxus-ripple) 35%, transparent);
  transform: scale(0);
  animation: omxus-ripple 0.55s ease-out;
  pointer-events: none;
}
@keyframes omxus-ripple { to { transform: scale(3.5); opacity: 0; } }

/* ── The sign-in card: docs/simple-examples/omxus_minimalist_auth.html ───── */
omxus-sign-in { display: block; }
.omxus-signin {
  color-scheme: var(--omxus-scheme);
  box-sizing: border-box;
  min-height: 100vh;
  min-height: 100dvh;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 32px 16px;
  background: var(--omxus-page);
  color: var(--omxus-text);
  font-family: var(--omxus-font);
  font-size: 14px;
  line-height: 20px;
  -webkit-font-smoothing: antialiased;
}
.omxus-signin *, .omxus-signin *::before, .omxus-signin *::after { box-sizing: border-box; }

.omxus-signin__card {
  position: relative;
  width: 100%;
  max-width: 384px;
  background: var(--omxus-card-glass);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  border: 1px solid var(--omxus-card-edge);
  box-shadow: var(--omxus-card-shadow);
  border-radius: 24px;
  padding: 40px 40px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
}
[data-entering] > .omxus-signin__main { animation: omxus-step-in 0.25s ease-out; }
@keyframes omxus-step-in { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }

/* Head: the ring, the wordmark, one small line. */
.omxus-signin__head { display: flex; flex-direction: column; align-items: center; text-align: center; margin-bottom: 36px; }
.omxus-signin__mark {
  display: block;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 1.5px solid var(--omxus-accent);
  box-shadow: 0 0 10px color-mix(in srgb, var(--omxus-accent) 70%, transparent);
  margin-bottom: 12px;
}
.omxus-signin__logo { display: block; height: 28px; width: auto; margin-bottom: 12px; }
.omxus-signin__word {
  margin: 0;
  font-size: 20px;
  line-height: 28px;
  font-weight: 300;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  padding-left: 0.3em; /* the tracking after the last letter, so it centres */
  color: color-mix(in srgb, var(--omxus-text) 90%, transparent);
}
.omxus-signin__title {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 20px;
  font-weight: 400;
  color: var(--omxus-text);
  outline: none;
}
.omxus-signin__sub { margin: 2px 0 0; font-size: 12px; line-height: 16px; color: var(--omxus-muted); }
.omxus-signin__sub strong { font-weight: 500; color: var(--omxus-text); }

.omxus-signin__main { width: 100%; display: flex; flex-direction: column; margin: 0; border: 0; padding: 0; min-width: 0; }

/* Underline field with a small uppercase label, and an optional small action on the right. */
.omxus-field { position: relative; margin-bottom: 28px; }
.omxus-field__top { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 4px; }
.omxus-field label {
  display: block;
  font-size: 10.5px;
  line-height: 14px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--omxus-muted);
}
.omxus-field input {
  display: block;
  width: 100%;
  margin: 0;
  border: none;
  border-bottom: 1px solid var(--omxus-outline);
  border-radius: 0;
  padding: 8px 0;
  background: transparent;
  color: var(--omxus-text);
  font: inherit;
  font-size: 15px;
  line-height: 22px;
  font-weight: 300;
  letter-spacing: 0.02em;
  outline: none;
  caret-color: var(--omxus-accent);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.omxus-field input:focus { border-bottom-color: var(--omxus-accent); box-shadow: 0 1px 0 0 var(--omxus-accent); }
.omxus-field input::placeholder { color: color-mix(in srgb, var(--omxus-muted) 60%, transparent); font-weight: 200; }
.omxus-field input[data-secret][type="password"] { letter-spacing: 0.12em; }
.omxus-field input[aria-invalid="true"] { border-bottom-color: var(--omxus-error); box-shadow: 0 1px 0 0 var(--omxus-error); }
.omxus-field input[name="code"] { font-family: var(--omxus-mono); letter-spacing: 0.4em; font-size: 18px; text-align: center; }
.omxus-field--quiet { margin-bottom: 20px; }

.omxus-signin__error { color: var(--omxus-error); font-size: 12px; line-height: 16px; margin: 6px 0 0; }
.omxus-signin__error:empty { display: none; }
.omxus-signin__hint { color: var(--omxus-muted); font-size: 12px; line-height: 16px; margin: 6px 0 0; }
.omxus-signin__hint:empty { display: none; }
.omxus-signin__hint[data-ok] { color: var(--omxus-accent); }
.omxus-signin__note { color: var(--omxus-muted); font-size: 12px; line-height: 18px; margin: 0 0 20px; text-align: center; }
.omxus-signin__who { text-align: center; margin: 0 0 8px; font-size: 16px; line-height: 22px; font-weight: 400; }
.omxus-signin__who small { display: block; color: var(--omxus-muted); font-size: 12px; line-height: 18px; }

/* Small plain text links. */
.omxus-link {
  background: none;
  border: none;
  padding: 2px 0;
  margin: 0;
  color: var(--omxus-accent);
  font: inherit;
  font-size: 12px;
  line-height: 16px;
  font-weight: 400;
  cursor: pointer;
  text-decoration: none;
  border-radius: 4px;
}
.omxus-link:hover { text-decoration: underline; text-underline-offset: 3px; }
.omxus-link:focus-visible { outline: 2px solid var(--omxus-accent); outline-offset: 2px; }
.omxus-field__top .omxus-link { font-size: 11px; }

/* The button, centred, the key fading in under it. */
.omxus-signin__press {
  --omxus-press-size: 124px;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 12px 0 0;
  padding-bottom: 36px;
}
.omxus-signin__key {
  position: absolute;
  bottom: 4px;
  left: 0;
  right: 0;
  text-align: center;
  font-family: var(--omxus-mono);
  font-size: 12px;
  line-height: 16px;
  letter-spacing: 0.05em;
  color: color-mix(in srgb, var(--omxus-accent) 92%, transparent);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
}
.omxus-signin__key[data-shown] { opacity: 1; transform: none; }

.omxus-signin__links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 4px 0;
  margin: 8px 0 0;
}
.omxus-signin__links > * + *::before { content: '·'; color: var(--omxus-muted); padding: 0 8px; text-decoration: none; display: inline-block; }

/* Other ways to sign in. */
.omxus-signin__others { width: 100%; margin-top: 24px; padding-top: 16px; border-top: 1px solid var(--omxus-line); text-align: center; }
.omxus-signin__others > .omxus-link { color: var(--omxus-muted); }
.omxus-signin__others ul { list-style: none; margin: 10px 0 0; padding: 0; display: flex; justify-content: center; gap: 0; }
.omxus-signin__others li + li::before { content: '·'; color: var(--omxus-muted); padding: 0 8px; }
.omxus-signin__learn { color: var(--omxus-muted); font-size: 12px; line-height: 18px; margin: 10px 0 0; }

.omxus-signin__footer { display: flex; justify-content: center; margin-top: 24px; }
.omxus-signin__footer a { color: var(--omxus-muted); font-size: 11px; line-height: 16px; text-decoration: none; }
.omxus-signin__footer a:hover { text-decoration: underline; text-underline-offset: 3px; }
.omxus-signin__footer a + a::before { content: '·'; padding: 0 8px; display: inline-block; }

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

/* Phones: the same card, a little tighter. */
@media (max-width: 480px) {
  .omxus-signin { padding: 24px 16px; }
  .omxus-signin__card { padding: 32px 24px 20px; border-radius: 20px; }
  .omxus-signin__head { margin-bottom: 28px; }
  .omxus-signin__press { --omxus-press-size: 116px; }
}

@media (prefers-reduced-motion: reduce) {
  .omxus-press, .omxus-press:hover, .omxus-press:active { transition: none; transform: none; }
  .omxus-press__ripple { display: none; }
  .omxus-press__spin { animation-duration: 2.4s; }
  [data-entering] > .omxus-signin__main { animation: none; }
  .omxus-field input, .omxus-signin__key { transition: none; }
}
.omxus-signin__hint--under { margin: -22px 0 22px; }
.omxus-signin__key--still { position: static; margin: 4px 0 20px; }
.omxus-link--more { display: inline-flex; align-items: center; gap: 4px; }
.omxus-link--more svg { width: 12px; height: 12px; transition: transform 0.2s ease; }
.omxus-link--more[aria-expanded="true"] svg { transform: rotate(180deg); }