/*
 * Public pages: sign in, sign up, password reset, two-factor, OAuth consent,
 * legal documents, and mobile hand-off screens. Uses tokens.css.
 */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body.public {
  margin: 0;
  min-width: 320px;
  min-height: 100dvh;
  background: var(--surface);
  color: var(--fg);
  font: 15px/1.5 var(--font);
  -webkit-font-smoothing: antialiased;
}
body.public.auth-layout { display: grid; background: var(--surface-grouped); }
a { color: var(--accent-text); text-underline-offset: 3px; }
img { max-width: 100%; color: transparent; }
button, input, select, textarea { font: inherit; }
h1, h2, h3, p { margin: 0; }
:focus-visible { outline: 3px solid var(--accent-text); outline-offset: 3px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.logo { display: block; fill: currentColor; }
.logo__mark { fill: var(--accent-text); }

/* ---------------------------------------------------------- Chrome */
.public-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 60px;
  padding: 0 max(24px, env(safe-area-inset-left));
  border-bottom: 1px solid var(--glass-border);
  background: var(--glass);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  backdrop-filter: blur(24px) saturate(180%);
}
.public-header .logo { width: 118px; height: 20px; color: var(--fg); }
.public-header nav { display: flex; align-items: center; gap: 8px; }
.public-main { width: 100%; max-width: 760px; margin: 0 auto; padding: 48px 24px 72px; }
.public-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 20px;
  padding: 28px 24px max(32px, env(safe-area-inset-bottom));
  border-top: 1px solid var(--border);
  color: var(--fg-muted);
  font-size: 13px;
}
.public-footer a { color: inherit; text-decoration: none; }
@media (hover: hover) { .public-footer a:hover { color: var(--fg); } }

/* ---------------------------------------------------------- Buttons */
.auth-button,
.public-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 12px 22px;
  border: 0;
  border-radius: 999px;
  background: var(--accent);
  color: var(--on-accent);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition: filter .15s, transform .12s, background-color .15s;
}
.auth-button { width: 100%; }
.public-button--small { min-height: 36px; padding: 8px 16px; font-size: 14px; }
.auth-button--secondary,
.public-button--secondary { background: var(--fill); color: var(--fg); }
.auth-button:active,
.public-button:active { transform: scale(.97); }
@media (hover: hover) {
  .auth-button:hover, .public-button:hover { filter: brightness(.96); }
  .auth-button--secondary:hover, .public-button--secondary:hover { background: var(--fill-strong); filter: none; }
}
.auth-button:disabled { opacity: .5; cursor: default; }

/* ---------------------------------------------------------- Flash */
.alert {
  margin: 0 0 20px;
  padding: 12px 16px;
  border-radius: var(--radius-control);
  background: var(--fill);
  color: var(--fg);
  font-size: 14px;
  line-height: 1.5;
}
.alert--error, .alert--alert { background: color-mix(in srgb, var(--danger) 12%, transparent); color: var(--danger); }
.alert--notice, .alert--success { background: var(--accent-tint); color: var(--accent-text); }

/* ---------------------------------------------------------- Auth shell */
.auth-shell {
  display: grid;
  place-items: center;
  min-height: 100dvh;
  padding: max(40px, env(safe-area-inset-top)) 20px max(40px, env(safe-area-inset-bottom));
}
.auth-shell__content { display: grid; justify-items: center; gap: 28px; width: 100%; max-width: 420px; }
.auth-shell__brand {
  display: grid;
  place-items: center;
  width: 64px;
  height: 64px;
  border-radius: 18px;
  background: linear-gradient(160deg, #7cc7bf, #3f958d);
  box-shadow: 0 8px 24px rgb(31 122 113 / 0.25);
}
.auth-shell__brand .logo { width: 30px; height: 30px; }
.auth-shell__brand .logo__mark { fill: #fff; }
.auth-card { width: 100%; }
.auth-card--wide { max-width: 480px; }
.auth-card__header { margin-bottom: 24px; text-align: center; }
.auth-card__header h1 { font-size: 28px; font-weight: 700; line-height: 1.2; letter-spacing: -.022em; }
.auth-card__header p { margin-top: 8px; color: var(--fg-muted); }
.auth-card__footer { margin-top: 24px; color: var(--fg-muted); font-size: 14px; text-align: center; }

.auth-form { display: grid; gap: 16px; }
.auth-form__grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.auth-field { display: grid; gap: 6px; min-width: 0; }
.auth-field__row { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.auth-label { font-size: 13px; font-weight: 600; }
.auth-input {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  border: 1px solid transparent;
  border-radius: var(--radius-control);
  background: var(--surface-elevated);
  color: var(--fg);
  font-size: 16px;
  box-shadow: inset 0 0 0 1px var(--border);
  transition: box-shadow .15s;
}
.auth-input::placeholder { color: var(--fg-muted); opacity: .8; }
.auth-input:focus { outline: none; box-shadow: inset 0 0 0 1px var(--accent-text), 0 0 0 4px var(--focus-ring); }
.auth-input[aria-invalid="true"], .auth-field:has(.auth-field__error) .auth-input { box-shadow: inset 0 0 0 1px var(--danger); }
.auth-field__error { color: var(--danger); font-size: 13px; }
.auth-link { color: var(--accent-text); font-weight: 500; }
.auth-link--quiet { font-size: 13px; }
.auth-form__terms, .auth-form__hint { color: var(--fg-muted); font-size: 13px; line-height: 1.6; text-align: center; }

.auth-divider { display: flex; align-items: center; gap: 12px; margin: 20px 0; color: var(--fg-muted); font-size: 13px; }
.auth-divider::before, .auth-divider::after { content: ""; flex: 1; height: 1px; background: var(--border); }
.auth-google-form { margin: 0; }
.auth-google-button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  min-height: 48px;
  padding: 12px 20px;
  border: 0;
  border-radius: 999px;
  background: var(--surface-elevated);
  color: var(--fg);
  font-size: 15px;
  font-weight: 600;
  box-shadow: inset 0 0 0 1px var(--border);
  cursor: pointer;
}
.auth-google-button svg { width: 18px; height: 18px; }
@media (hover: hover) { .auth-google-button:hover { background: var(--fill); } }

.auth-state { display: grid; justify-items: center; gap: 16px; text-align: center; }
.auth-state__icon { display: grid; place-items: center; width: 64px; height: 64px; border-radius: 20px; background: var(--accent-tint); color: var(--accent-text); }
.auth-state__icon--warning { background: color-mix(in srgb, #f59e0b 16%, transparent); color: #b45309; }
.auth-state__icon svg { width: 28px; height: 28px; fill: currentColor; }
.auth-state__actions { display: grid; gap: 10px; width: 100%; }

.auth-consent__heading { margin: 0 0 8px 16px; color: var(--fg-muted); font-size: 13px; font-weight: 500; letter-spacing: .04em; text-transform: uppercase; }
.auth-consent__permissions { margin: 0 0 24px; padding: 0; border-radius: var(--radius-group); background: var(--surface-elevated); list-style: none; overflow: hidden; }
.auth-consent__permission { position: relative; display: flex; align-items: center; gap: 12px; min-height: 48px; padding: 12px 16px; }
.auth-consent__permission + .auth-consent__permission::before { content: ""; position: absolute; top: 0; right: 0; left: 48px; border-top: 1px solid var(--border); }
.auth-consent__permission svg { width: 20px; height: 20px; flex-shrink: 0; fill: var(--accent-text); }
.auth-consent__signed-in { margin-top: 20px; color: var(--fg-muted); font-size: 13px; text-align: center; }
.auth-card form + form, .auth-card form .auth-button + .auth-button { margin-top: 10px; }

/* Sign-in popups (opened by the apps) have no way back to the site. */
.auth-layout--popup .auth-shell { padding-block: 32px; }
.auth-layout--popup .auth-shell__content { gap: 20px; }

/* ---------------------------------------------------------- Documents */
.public-prose { color: var(--fg); font-size: 16px; line-height: 1.7; overflow-wrap: anywhere; }
.public-prose h1 { margin: 0 0 24px; font-size: 34px; font-weight: 700; line-height: 1.15; letter-spacing: -.022em; }
.public-prose h2 { margin: 40px 0 12px; font-size: 22px; font-weight: 700; line-height: 1.3; letter-spacing: -.015em; }
.public-prose h3 { margin: 28px 0 8px; font-size: 17px; font-weight: 600; }
.public-prose p, .public-prose ul, .public-prose ol { margin: 0 0 16px; }
.public-prose ul, .public-prose ol { padding-left: 24px; }
.public-prose li + li { margin-top: 6px; }
.public-prose strong { font-weight: 600; }
.public-prose table { width: 100%; margin: 0 0 16px; border-collapse: collapse; font-size: 14px; }
.public-prose th, .public-prose td { padding: 8px 10px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }

/* ---------------------------------------------------------- Notices */
.public-notice { display: grid; justify-items: center; gap: 16px; max-width: 440px; margin: 8vh auto 0; text-align: center; }
.public-notice-icon { display: grid; place-items: center; width: 64px; height: 64px; border-radius: 20px; background: var(--accent-tint); color: var(--accent-text); }
.public-notice-icon svg { width: 30px; height: 30px; }
.public-notice h1 { font-size: 28px; font-weight: 700; line-height: 1.2; letter-spacing: -.022em; }
.public-notice p { color: var(--fg-muted); line-height: 1.6; }
.public-notice-actions { display: grid; gap: 10px; width: 100%; margin-top: 8px; }

@media (max-width: 520px) {
  .public-header { padding: 0 16px; }
  .public-main { padding: 32px 16px 56px; }
  .public-prose h1 { font-size: 28px; }
  .auth-form__grid { grid-template-columns: minmax(0, 1fr); }
  .auth-shell { place-items: start center; padding-top: max(32px, env(safe-area-inset-top)); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
}