/*
 * Tokens mirror noted's, so a person moving between the two apps sees one
 * product. Only the subset the two sign-in screens use is carried over.
 */

:root {
  color-scheme: dark;

  --surface-sunken:  #131315;
  --surface:         #1b1b1d;
  --surface-raised:  #232326;
  --surface-overlay: #2b2b30;

  --text:       #e8e8ea;
  --text-dim:   #a4a4ac;
  --text-faint: #75757d;

  --border:        #34343a;
  --border-strong: #4a4a52;


  --danger:      #d9635a;
  --danger-tint: rgba(217, 99, 90, 0.12);

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-7: 2rem;
  --space-8: 3rem;

  --radius-sm:   0.25rem;
  --radius-md:   0.5rem;
  --radius-lg:   0.75rem;
  --radius-full: 999px;

  --font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  --size-label: 0.6875rem;
  --size-xs:    0.78125rem;
  --size-sm:    0.875rem;
  --size-md:    1.0625rem;
  --size-lg:    1.3125rem;
  --size-xl:    1.625rem;

  --leading-tight: 1.25;
  --leading-body:  1.5;

  --weight-normal: 400;
  --weight-medium: 550;
  --weight-bold:   650;

  --shadow-1: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-2: 0 4px 16px rgba(0, 0, 0, 0.45);

  --duration-fast: 90ms;
  --ease: cubic-bezier(0.2, 0, 0.2, 1);
}

@media (prefers-reduced-motion: reduce) {
  :root { --duration-fast: 0ms; }
}

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

body {
  margin: 0;
  min-height: 100dvh;
  background: var(--surface-sunken);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: var(--size-md);
  line-height: var(--leading-body);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

:focus-visible {
  outline: 2px solid var(--text);
  outline-offset: 2px;
}

main {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  padding: var(--space-6);
}

.card {
  width: 100%;
  max-width: 24rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-2);
  padding: var(--space-8) var(--space-7) var(--space-7);
  text-align: center;
}

.card__logo {
  width: 4.5rem;
  height: 4.5rem;
  object-fit: contain;
  border-radius: var(--radius-md);
}

.card__title {
  margin: var(--space-4) 0 var(--space-6);
  font-size: var(--size-md);
  font-weight: var(--weight-bold);
  line-height: var(--leading-tight);
}

.card__subtitle {
  margin: calc(var(--space-1) - var(--space-6)) 0 var(--space-6);
  font-size: var(--size-sm);
  color: var(--text-dim);
}

.button {
  width: 100%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  font: inherit;
  font-size: var(--size-sm);
  font-weight: var(--weight-medium);
  color: var(--text);
  background: var(--surface-raised);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  cursor: pointer;
  transition: background var(--duration-fast) var(--ease),
              border-color var(--duration-fast) var(--ease);
}

.button:hover { background: var(--surface-overlay); }
.button:active { transform: translateY(1px); }
.button svg { flex: none; }

form { margin: 0; }

.password-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  text-align: left;
}

.password-form [type="submit"] { margin-top: var(--space-3); }

/* Out of sight but still in the layout: display:none is skipped by the
   password managers this is here for. */
.offscreen {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  border: 0;
  clip-path: inset(50%);
  overflow: hidden;
}

/* No divider overhead to separate it from the heading, so it carries its own. */
.password-form--standalone {
  margin-top: var(--space-7);
  gap: var(--space-5);
}

.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.field label {
  font-size: var(--size-label);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.field input {
  width: 100%;
  font: inherit;
  font-size: var(--size-sm);
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
}

.field input:focus { outline: 1px solid var(--text-dim); }

.divider {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin: var(--space-5) 0;
  font-size: var(--size-label);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.divider::before, .divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border);
}

.users {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  text-align: left;
}

.user__name { font-weight: var(--weight-medium); }
.user__email { color: var(--text-faint); font-size: var(--size-xs); }

.users .button {
  flex-direction: column;
  align-items: flex-start;
  gap: 0;
}

.footnote {
  margin: var(--space-5) 0 0;
  font-size: var(--size-sm);
  color: var(--text-dim);
}

.footnote a { color: var(--text); text-decoration: none; }
.footnote a:hover { text-decoration: underline; }

/* One line either way, so revealing the answer does not resize the card. */
.reveal {
  height: 1.5em;
  height: 1lh;
  overflow: hidden;
}

.reveal summary {
  cursor: pointer;
  list-style: none;
}

.reveal summary::-webkit-details-marker { display: none; }
.reveal[open] summary { display: none; }

.flash {
  width: 100%;
  max-width: 24rem;
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.flash li {
  font-size: var(--size-sm);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--border);
  background: var(--surface-raised);
  color: var(--text-dim);
}

.flash .alert {
  color: var(--danger);
  border-color: var(--danger);
  background: var(--danger-tint);
}

.flash .notice {
  color: var(--text);
  border-color: var(--border-strong);
}