/*
 * Auth surfaces (#4375): the sign-in/sign-up dialog (au-*), the /welcome page (wl-*), and the service-hours
 * instructions page (sh-*). Everything derives from the main.css :root design tokens.
 */

/* AA-safe error text derived from the error token rather than a new hex; candidate for a --color-error-300 token
   (error-200 on white measures 4.38:1, just under AA for body text). */
.au-dialog,
.au-page,
.wl-page,
.sh-page {
  --auth-error-ink: color-mix(in srgb, var(--color-error-200) 78%, black);
}

/* ---- Dialog shell ------------------------------------------------------------------------------------------- */
dialog.au-dialog {
  width: min(460px, 92vw);
  max-height: calc(100dvh - 32px);
  border: none;
  border-radius: 16px;
  padding: 0;
  overflow: hidden;
  display: none;
  flex-direction: column;
  background: var(--color-neutral-white);
  box-shadow: 0 24px 64px rgb(9 8 13 / 35%);
  font: var(--text-body-regular);
  color: var(--color-neutral-900);
}

dialog.au-dialog[open] {
  display: flex;
}

/* ::backdrop can't read :root custom properties in all Baseline browsers, so the asphalt-500 tint is spelled out. */
dialog.au-dialog::backdrop {
  background: rgb(45 42 63 / 55%);
}

@media (prefers-reduced-motion: no-preference) {
  dialog.au-dialog[open] {
    animation: au-pop 0.16s ease-out;
  }

  @keyframes au-pop {
    from {
      opacity: 0;
      transform: translateY(6px);
    }

    to {
      opacity: 1;
      transform: none;
    }
  }
}

.au-body {
  padding: 24px 32px 28px;
  overflow-y: auto;
}

.au-top {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.au-top img {
  width: 40px;
  height: 40px;
  margin-top: 2px;
}

.au-heading {
  flex: 1;
}

.au-eyebrow {
  margin: 0 0 2px;
  font: var(--text-small-accent);
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-asphalt-300);
}

.au-title {
  margin: 0;
  font: var(--text-h2-bold);
  font-size: 26px;
  line-height: 32px;
  color: var(--color-asphalt-500);
}

.au-tagline {
  margin: 6px 0 0;
  font: var(--text-small-regular);
  color: var(--color-neutral-700);
}

.au-close {
  flex: 0 0 auto;
  width: 36px;
  height: 36px;
  margin: -6px -10px 0 0;
  border: none;
  border-radius: 10px;
  background: transparent;
  color: var(--color-neutral-700);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  display: grid;
  place-items: center;
}

.au-close:hover {
  background: var(--color-neutral-100);
  color: var(--color-neutral-900);
}

/* ---- Fields ------------------------------------------------------------------------------------------------- */
.au-form {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.au-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.au-label-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.au-label {
  font: var(--text-small-bold);
  color: var(--color-asphalt-500);
}

.au-link {
  font: var(--text-small-medium);
  color: var(--color-link-200);
  text-decoration: none;
}

.au-link:hover {
  text-decoration: underline;
}

.au-input-wrap {
  position: relative;
}

.au-input {
  width: 100%;
  padding: 11px 14px;
  font: var(--text-body-regular);
  color: var(--color-neutral-900);
  background: var(--color-neutral-white);
  border: 1.5px solid var(--color-neutral-400);
  border-radius: 10px;
}

.au-input::placeholder {
  color: var(--color-neutral-700);
}

.au-input:focus,
.au-input:focus-visible {
  outline: 2px solid var(--color-pine-700);
  outline-offset: 1px;
  border-color: var(--color-pine-700);
}

.au-input--with-eye {
  padding-right: 46px;
}

.au-input--error {
  border-color: var(--color-error-200);
  border-width: 2px;
}

.au-eye {
  position: absolute;
  top: 50%;
  right: 6px;
  transform: translateY(-50%);
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--color-neutral-700);
  cursor: pointer;
}

.au-eye:hover {
  background: var(--color-neutral-100);
  color: var(--color-neutral-900);
}

.au-eye svg {
  width: 19px;
  height: 19px;
}

.au-eye svg.ps-hidden {
  display: none;
}

.au-help {
  font: var(--text-caption-regular);
  color: var(--color-neutral-700);
}

.au-close:focus-visible,
.au-eye:focus-visible,
.au-check input:focus-visible,
.au-link:focus-visible,
.au-dialog .button-ps:focus-visible,
.wl-page .button-ps:focus-visible,
.sh-page .button-ps:focus-visible {
  outline: 2px solid var(--color-pine-700);
  outline-offset: 2px;
}

/* ---- Live validation (sign-up) ------------------------------------------------------------------------------ */
.au-checklist {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5px 14px;
  margin: 8px 0 0;
  padding: 0;
  list-style: none;
}

.au-checklist li {
  display: flex;
  align-items: center;
  gap: 7px;
  font: var(--text-caption-medium);
  color: var(--color-neutral-700);
}

.au-dot {
  flex: 0 0 auto;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  border: 1.5px solid var(--color-neutral-400);
  display: grid;
  place-items: center;
  background: var(--color-neutral-white);
}

.au-dot svg {
  width: 9px;
  height: 9px;
  display: none;
}

.au-checklist li.met,
.au-match.met {
  color: var(--color-pine-800);
}

.au-checklist li.met .au-dot,
.au-match.met .au-dot {
  background: var(--color-pine-600);
  border-color: var(--color-pine-600);
}

.au-checklist li.met .au-dot .au-ic-check,
.au-match.met .au-dot .au-ic-check {
  display: block;
}

.au-dot .au-ic-x {
  display: none;
}

.au-match.unmet {
  color: var(--auth-error-ink);
}

.au-match.unmet .au-dot {
  border-color: var(--color-error-200);
}

.au-match.unmet .au-dot .au-ic-x {
  display: block;
}

.au-match.unmet .au-dot .au-ic-check {
  display: none;
}

/* Password strength: four sidewalk slabs with expansion joints, paved as rules are met. */
.au-strength {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 8px;
}

.au-slabs {
  display: flex;
  gap: 3px;
  flex: 1;
}

.au-slabs span {
  flex: 1;
  height: 8px;
  border-radius: 2.5px;
  background: var(--color-neutral-200);
}

.au-slabs span.paved {
  background: var(--color-pine-600);
}

.au-strength-word {
  font: var(--text-caption-medium);
  color: var(--color-neutral-700);
  min-width: 44px;
  text-align: right;
}

.au-match {
  display: flex;
  align-items: center;
  gap: 7px;
  font: var(--text-caption-medium);
  color: var(--color-neutral-700);
}

/* ---- Inline errors ------------------------------------------------------------------------------------------ */
.au-summary {
  display: flex;
  gap: 10px;
  padding: 12px 14px;
  margin: 16px 0 0;
  background: var(--color-orange-100);
  border-left: 4px solid var(--color-error-200);
  border-radius: 8px;
}

.au-summary svg {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  color: var(--color-error-200);
  margin-top: 1px;
}

.au-summary p {
  margin: 0;
  font: var(--text-small-regular);
  color: var(--color-asphalt-500);
}

.au-field-error {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0;
  font: var(--text-small-bold);
  color: var(--auth-error-ink);
}

.au-field-error svg {
  width: 14px;
  height: 14px;
  flex: 0 0 auto;
}

/* ---- Checkbox + submit ---------------------------------------------------------------------------------------- */
.au-check {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  font: var(--text-small-regular);
  color: var(--color-neutral-900);
}

.au-check input {
  width: 17px;
  height: 17px;
  margin: 1px 0 0;
}

.au-check a {
  color: var(--color-link-200);
}

.au-submit {
  width: 100%;
  justify-content: center;
  font-weight: 700;
}

/* Working state while the async submit is in flight: hide the label, show a spinner in its place. */
.au-submit.is-loading {
  color: transparent;
  position: relative;
  pointer-events: none;
}

.au-submit.is-loading::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 18px;
  height: 18px;
  margin: -9px 0 0 -9px;
  border: 2px solid color-mix(in srgb, var(--color-asphalt-500) 35%, transparent);
  border-top-color: var(--color-asphalt-500);
  border-radius: 50%;
  animation: au-spin 0.7s linear infinite;
}

@keyframes au-spin {
  to {
    transform: rotate(360deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .au-submit.is-loading::after {
    animation-duration: 2s;
  }
}

.au-footer {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--color-neutral-200);
  text-align: center;
  font: var(--text-small-regular);
  color: var(--color-neutral-700);
}

.au-footer a {
  font: var(--text-small-bold);
  color: var(--color-link-200);
  text-decoration: none;
}

.au-footer a:hover {
  text-decoration: underline;
}

/* ---- Full-page auth card (forgot/reset password) ---------------------------------------------------------------- */
.au-page {
  display: flex;
  justify-content: center;
  padding: 48px 16px 72px;
}

.au-card {
  width: min(460px, 100%);
  border: 1px solid var(--color-neutral-200);
  border-radius: 16px;
  overflow: hidden;
  background: var(--color-neutral-white);
  box-shadow: 0 8px 28px rgb(9 8 13 / 8%);
  font: var(--text-body-regular);
  color: var(--color-neutral-900);
}

.au-copy {
  margin: 12px 0 0;
  font: var(--text-small-regular);
  color: var(--color-neutral-700);
}

.au-summary--info {
  background: var(--color-pine-100);
  border-left-color: var(--color-pine-700);
}

.au-summary--info svg {
  color: var(--color-pine-700);
}

/* ---- Welcome page (/welcome) ---------------------------------------------------------------------------------- */
.wl-page {
  background: var(--color-neutral-white);
  color: var(--color-neutral-900);
  font: var(--text-body-regular);
}

.wl-hero {
  position: relative;
  overflow: hidden;
  text-align: center;
  padding: 52px 24px 44px;
  background: linear-gradient(120deg, var(--color-pine-100), var(--color-banana-100));
}

.wl-hero .wl-logo {
  width: 64px;
  height: 64px;
}

.wl-hero h1 {
  margin: 14px 0 6px;
  font: var(--text-h1-bold);
  color: var(--color-asphalt-500);
  text-wrap: balance;
}

.wl-hero .wl-sub {
  margin: 0 auto;
  max-width: 52ch;
  font: var(--text-body-regular);
  color: var(--color-neutral-800);
}

/* Confetti in the seven canonical label-type colors. Decorative only; hidden from AT and gated on motion prefs. */
.wl-confetti {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.wl-confetti i {
  position: absolute;
  top: -14px;
  width: 8px;
  height: 13px;
  border-radius: 2px;
  opacity: 0;
}

.wl-confetti i:nth-child(7n+1) { background: var(--color-label-curb-ramp); }
.wl-confetti i:nth-child(7n+2) { background: var(--color-label-no-curb-ramp); }
.wl-confetti i:nth-child(7n+3) { background: var(--color-label-obstacle); }
.wl-confetti i:nth-child(7n+4) { background: var(--color-label-surface-problem); }
.wl-confetti i:nth-child(7n+5) { background: var(--color-label-no-sidewalk); }
.wl-confetti i:nth-child(7n+6) { background: var(--color-label-crosswalk); }
.wl-confetti i:nth-child(7n+7) { background: var(--color-label-signal); }

.wl-confetti i:nth-child(3n) {
  width: 7px;
  height: 7px;
  border-radius: 50%;
}

.wl-confetti i:nth-child(1) {
  left: 4%;
  animation-delay: 0.05s;
}

.wl-confetti i:nth-child(2) {
  left: 11%;
  animation-delay: 0.55s;
}

.wl-confetti i:nth-child(3) {
  left: 17%;
  animation-delay: 0.2s;
}

.wl-confetti i:nth-child(4) {
  left: 24%;
  animation-delay: 0.8s;
}

.wl-confetti i:nth-child(5) {
  left: 30%;
  animation-delay: 0.4s;
}

.wl-confetti i:nth-child(6) {
  left: 37%;
  animation-delay: 0.1s;
}

.wl-confetti i:nth-child(7) {
  left: 43%;
  animation-delay: 0.65s;
}

.wl-confetti i:nth-child(8) {
  left: 50%;
  animation-delay: 0.3s;
}

.wl-confetti i:nth-child(9) {
  left: 56%;
  animation-delay: 0.9s;
}

.wl-confetti i:nth-child(10) {
  left: 63%;
  animation-delay: 0.15s;
}

.wl-confetti i:nth-child(11) {
  left: 69%;
  animation-delay: 0.5s;
}

.wl-confetti i:nth-child(12) {
  left: 76%;
  animation-delay: 0.25s;
}

.wl-confetti i:nth-child(13) {
  left: 82%;
  animation-delay: 0.7s;
}

.wl-confetti i:nth-child(14) {
  left: 89%;
  animation-delay: 0.45s;
}

.wl-confetti i:nth-child(15) {
  left: 95%;
  animation-delay: 0.6s;
}

.wl-confetti i:nth-child(16) {
  left: 8%;
  animation-delay: 1s;
}

.wl-confetti i:nth-child(17) {
  left: 33%;
  animation-delay: 1.15s;
}

.wl-confetti i:nth-child(18) {
  left: 60%;
  animation-delay: 1.05s;
}

.wl-confetti i:nth-child(19) {
  left: 86%;
  animation-delay: 1.2s;
}

.wl-confetti i:nth-child(20) {
  left: 47%;
  animation-delay: 1.3s;
}

.wl-confetti i:nth-child(21) {
  left: 21%;
  animation-delay: 1.35s;
}

@media (prefers-reduced-motion: no-preference) {
  .wl-hero.play .wl-confetti i {
    animation-name: wl-fall;
    animation-duration: 3s;
    animation-timing-function: cubic-bezier(0.3, 0.1, 0.6, 1);
    animation-fill-mode: forwards;
  }

  @keyframes wl-fall {
    0% {
      opacity: 0;
      transform: translateY(0) rotate(0);
    }

    8% {
      opacity: 1;
    }

    82% {
      opacity: 1;
    }

    100% {
      opacity: 0;
      transform: translateY(300px) rotate(300deg);
    }
  }
}

.wl-main {
  max-width: 880px;
  margin: 0 auto;
  padding: 34px 24px 44px;
}

.wl-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

@media (width <= 640px) {
  .wl-cards {
    grid-template-columns: 1fr;
  }
}

.wl-card {
  display: block;
  border: 1px solid var(--color-neutral-200);
  border-radius: 12px;
  padding: 20px;
  background: var(--color-neutral-white);
  text-align: left;
  color: inherit;
  text-decoration: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}

.wl-card:hover {
  border-color: var(--color-pine-600);
  box-shadow: 0 8px 28px rgb(9 8 13 / 8%);
}

.wl-card:focus-visible {
  outline: 2px solid var(--color-pine-700);
  outline-offset: 2px;
}

/* Lift on hover only when motion is welcome; reduced-motion users still get the border/shadow cue. */
@media (prefers-reduced-motion: no-preference) {
  .wl-card:hover {
    transform: translateY(-2px);
  }
}

.wl-card .wl-icon {
  height: 44px;
  display: flex;
  align-items: center;
  margin-bottom: 10px;
}

.wl-card .wl-icon svg {
  width: 38px;
  height: 38px;
}

.wl-card .wl-icon img {
  width: 42px;
  height: 42px;
}

.wl-card h2 {
  margin: 0 0 4px;
  font: var(--text-subtitle-bold);
  color: var(--color-asphalt-500);
}

.wl-card p {
  margin: 0;
  font: var(--text-small-regular);
  color: var(--color-neutral-700);
}

.wl-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
  margin-top: 30px;
}

/* Service-hours prompt: a prominent callout, not a footnote (school/volunteer credit is a key entry path). */
.wl-service {
  display: flex;
  align-items: center;
  gap: 13px;
  max-width: 540px;
  margin: 26px auto 0;
  padding: 15px 20px;
  text-align: left;
  background: var(--color-banana-100);
  border: 1px solid var(--color-banana-300);
  border-radius: 12px;
}

.wl-service-ic {
  flex: none;
  width: 30px;
  height: 30px;
  color: var(--color-banana-700);
}

.wl-service-body {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
}

.wl-service-prompt {
  margin: 0;
  font: var(--text-small-medium);
  color: var(--color-asphalt-700);
}

.wl-service-btn {
  align-self: flex-start;
}

.wl-hint {
  margin: 16px 0 0;
  text-align: center;
  font: var(--text-caption-regular);
  color: var(--color-neutral-700);
}

.wl-hint a {
  color: var(--color-link-200);
}

/* ---- Service-hours instructions page --------------------------------------------------------------------------- */
.sh-page {
  background: var(--color-neutral-white);
  color: var(--color-neutral-900);
  font: var(--text-body-regular);
}

.sh-hero {
  padding: 34px 34px 24px;
  max-width: 760px;
  margin: 0 auto;
}

.sh-eyebrow {
  margin: 0 0 4px;
  font: 700 11px/18px var(--font-accent);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-asphalt-300);
}

.sh-hero h1 {
  margin: 0 0 10px;
  font: var(--text-h2-bold);
  color: var(--color-asphalt-500);
  text-wrap: balance;
}

.sh-hero p {
  margin: 0;
  font: var(--text-body-regular);
  color: var(--color-neutral-800);
  max-width: 62ch;
}

/* Time Check hero stat: the logged hours as a big, celebratory number. */
.tc-stat {
  max-width: 560px;
  margin: 4px auto 0;
  padding: 30px 24px;
  text-align: center;
  background: linear-gradient(160deg, var(--color-pine-100), var(--color-banana-100));
  border: 1px solid var(--color-pine-200);
  border-radius: 16px;
}

.tc-stat-num {
  display: block;
  font-family: var(--font-primary), sans-serif;
  font-weight: 700;
  font-size: clamp(56px, 12vw, 92px);
  line-height: 1;
  color: var(--color-pine-800);
  font-variant-numeric: tabular-nums;
}

.tc-stat-unit {
  display: block;
  margin-top: 8px;
  font: var(--text-subtitle-bold);
  color: var(--color-asphalt-500);
}

.tc-stat-cheer {
  margin: 14px auto 0;
  max-width: 44ch;
  font: var(--text-body-regular);
  color: var(--color-asphalt-700);
}

/* Live opt-in status for the signed-in user: on (pine), off (banana prompt), or an anon sign-up nudge. */
.sh-track {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  max-width: 760px;
  margin: 18px auto 4px;
  padding: 14px 18px;
  border: 1px solid var(--color-neutral-200);
  border-radius: 12px;
}

.sh-track--on {
  background: var(--color-pine-100);
  border-color: var(--color-pine-300);
}

.sh-track--off {
  background: var(--color-banana-100);
  border-color: var(--color-banana-300);
}

.sh-track-badge {
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--color-pine-600);
  color: var(--color-neutral-white);
  display: grid;
  place-items: center;
}

.sh-track-badge svg {
  width: 18px;
  height: 18px;
}

.sh-track-body {
  flex: 1;
  min-width: 180px;
}

.sh-track-body strong {
  display: block;
  font: var(--text-small-bold);
  color: var(--color-asphalt-500);
}

.sh-track-body span {
  font: var(--text-small-regular);
  color: var(--color-neutral-800);
}

.sh-track-body a {
  color: var(--color-link-200);
}

.sh-track form {
  flex: 0 0 auto;
  margin: 0;
}

.sh-super {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 auto;
  padding: 12px 16px;
  max-width: 760px;
  border: 1px solid var(--color-neutral-200);
  border-radius: 12px;
}

.sh-avatar {
  flex: 0 0 auto;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--color-pine-700);
  color: var(--color-neutral-white);
  display: grid;
  place-items: center;
  font: 700 14px/1 var(--font-accent);
}

.sh-super p {
  margin: 0;
  font: var(--text-small-regular);
  color: var(--color-neutral-800);
}

.sh-super p strong {
  font: var(--text-small-bold);
  color: var(--color-asphalt-500);
  display: block;
}

.sh-super a {
  color: var(--color-link-200);
}

.sh-main {
  padding: 24px 34px 44px;
  max-width: 760px;
  margin: 0 auto;
}

.sh-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.sh-steps li {
  display: flex;
  gap: 14px;
}

.sh-num {
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-asphalt-500);
  color: var(--color-neutral-white);
  display: grid;
  place-items: center;
  font: 700 13px/1 var(--font-primary);
}

.sh-steps h2 {
  margin: 3px 0;
  font: var(--text-subtitle-bold);
  color: var(--color-asphalt-500);
}

.sh-steps p {
  margin: 0;
  font: var(--text-small-regular);
  color: var(--color-neutral-700);
  max-width: 58ch;
}

.sh-steps a {
  color: var(--color-link-200);
}

.sh-warn {
  display: flex;
  gap: 10px;
  margin: 22px 0 0;
  padding: 12px 14px;
  background: var(--color-banana-100);
  border-left: 4px solid var(--color-banana-800);
  border-radius: 8px;
}

.sh-warn svg {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  color: var(--color-banana-800);
  margin-top: 1px;
}

.sh-warn p {
  margin: 0;
  font: var(--text-small-regular);
  color: var(--color-asphalt-500);
}

.sh-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.sh-fact {
  flex: 1 1 240px;
  display: flex;
  gap: 10px;
  padding: 12px 14px;
  background: var(--color-pine-100);
  border-radius: 10px;
  font: var(--text-small-regular);
  color: var(--color-asphalt-500);
}

.sh-fact svg {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  color: var(--color-pine-700);
  margin-top: 1px;
}

.sh-fact a {
  color: var(--color-link-200);
}

.sh-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 26px;
}