:root {
  color-scheme: light;
  --canvas: #f2f6f5;
  --surface: #ffffff;
  --surface-raised: #ffffff;
  --surface-muted: #e8efee;
  --ink: #081821;
  --muted: #4d626a;
  --line: #c6d3d5;
  --line-strong: #8fa5aa;
  --accent: #f5c842;
  --accent-strong: #dbac13;
  --accent-ink: #1f1a04;
  --teal: #087c74;
  --teal-strong: #075f5a;
  --success: #087447;
  --success-soft: #d9f4e7;
  --danger: #b82e3c;
  --danger-soft: #fee6e9;
  --map-red: #d3263e;
  --shadow: 0 12px 36px rgba(8, 24, 33, 0.1);
  --header-height: 4.25rem;
  --radius: 0.9rem;
  --radius-small: 0.62rem;
  --tap: 3.25rem;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --canvas: #061219;
  --surface: #0d222c;
  --surface-raised: #122b36;
  --surface-muted: #193540;
  --ink: #f4faf9;
  --muted: #b2c5c9;
  --line: #35515a;
  --line-strong: #688088;
  --accent: #ffd65a;
  --accent-strong: #e5b928;
  --accent-ink: #211b04;
  --teal: #42d4c3;
  --teal-strong: #73e4d7;
  --success: #5bdaa3;
  --success-soft: #123d31;
  --danger: #ff8995;
  --danger-soft: #4b2028;
  --map-red: #ff5367;
  --shadow: 0 18px 44px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  min-width: 20rem;
  background: var(--canvas);
  scroll-behavior: smooth;
}

body {
  min-height: 100dvh;
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.5;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

button,
input,
textarea,
select {
  font: inherit;
}

button,
a,
input,
textarea,
select {
  -webkit-tap-highlight-color: transparent;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid var(--teal);
  outline-offset: 3px;
}

a {
  color: var(--teal);
  font-weight: 700;
}

.title,
.subtitle,
.label,
.content,
.table,
.table th,
.table td {
  color: var(--ink);
}

.title {
  letter-spacing: -0.035em;
  line-height: 1.08;
}

.subtitle {
  color: var(--muted);
}

.app-header {
  position: sticky;
  z-index: 1000;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  padding: 0.55rem max(1rem, env(safe-area-inset-left));
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface) 94%, transparent);
  backdrop-filter: blur(14px);
}

.brand-button,
.account-button,
.icon-button {
  border: 0;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
}

.brand-button {
  display: inline-flex;
  align-items: center;
  gap: 0.62rem;
  min-height: var(--tap);
  padding: 0.25rem 0.35rem;
  text-align: left;
}

.brand-mark {
  display: grid;
  width: 2.65rem;
  height: 2.65rem;
  place-items: center;
  border-radius: 0.8rem 0.8rem 0.25rem 0.8rem;
  background: var(--accent);
  color: var(--accent-ink);
  font-size: 2rem;
  font-weight: 900;
  line-height: 1;
  transform: rotate(-7deg);
}

.brand-copy {
  display: flex;
  flex-direction: column;
  font-size: 0.8rem;
  line-height: 1.05;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.brand-copy strong {
  font-size: 1rem;
  letter-spacing: -0.01em;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.icon-button,
.account-button {
  min-width: var(--tap);
  min-height: var(--tap);
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface-muted);
  font-weight: 800;
}

.icon-button {
  font-size: 1.35rem;
}

.account-button {
  padding: 0 1rem;
}

.sync-status {
  max-width: 9rem;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
  text-align: right;
}

.offline-banner {
  position: sticky;
  z-index: 1100;
  top: 0;
  padding: 0.68rem 1rem;
  background: var(--accent);
  color: var(--accent-ink);
  font-size: 0.9rem;
  font-weight: 800;
  text-align: center;
}

.offline-banner:not([hidden]) + .app-header {
  top: 2.8rem;
}

#app {
  min-height: calc(100dvh - var(--header-height));
  padding: 1.35rem max(1rem, env(safe-area-inset-left)) calc(2.5rem + env(safe-area-inset-bottom));
}

.page-shell {
  width: min(100%, 70rem);
  margin: 0 auto;
}

.page-shell.narrow {
  width: min(100%, 42rem);
}

.loading-screen {
  display: grid;
  min-height: 55dvh;
  place-content: center;
  justify-items: center;
  gap: 1rem;
  color: var(--muted);
  font-weight: 700;
}

.loader-dot {
  width: 2.4rem;
  height: 2.4rem;
  border: 0.35rem solid var(--line);
  border-top-color: var(--teal);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.eyebrow {
  margin: 0 0 0.45rem;
  color: var(--teal);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.page-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.page-heading .title {
  margin-bottom: 0.4rem;
}

.page-heading .subtitle {
  margin: 0;
}

.panel-card,
.study-card,
.audit-card,
.report-card,
.choice-card,
.review-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.panel-card {
  padding: clamp(1.2rem, 4vw, 2rem);
}

.login-shell {
  display: grid;
  min-height: calc(100dvh - var(--header-height) - 3rem);
  place-items: center;
}

.login-panel {
  width: min(100%, 31rem);
}

.login-panel .title {
  margin-bottom: 0.7rem;
  font-size: clamp(2rem, 8vw, 3.2rem);
}

.login-panel .subtitle {
  margin-bottom: 1.6rem;
  font-size: 1.05rem;
}

.field:not(:last-child) {
  margin-bottom: 1.15rem;
}

.label {
  margin-bottom: 0.48rem;
  font-size: 0.95rem;
  font-weight: 850;
}

.input,
.textarea,
.select select {
  min-height: var(--tap);
  border: 2px solid var(--line-strong);
  border-radius: var(--radius-small);
  background: var(--surface-raised);
  color: var(--ink);
  box-shadow: none;
  font-size: 1rem;
}

.input:focus,
.textarea:focus,
.select select:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 0.18rem color-mix(in srgb, var(--teal) 25%, transparent);
}

.textarea {
  min-height: 8rem;
  resize: vertical;
}

.help {
  color: var(--muted);
  font-size: 0.88rem;
}

.button {
  min-height: var(--tap);
  border-width: 2px;
  border-radius: var(--radius-small);
  font-size: 1rem;
  font-weight: 850;
  transition: transform 120ms ease, background-color 120ms ease, border-color 120ms ease;
}

.button:active:not(:disabled) {
  transform: translateY(1px) scale(0.99);
}

.button.is-primary {
  border-color: var(--accent-strong);
  background: var(--accent);
  color: var(--accent-ink);
}

.button.is-primary:hover,
.button.is-primary:focus {
  border-color: var(--accent-strong);
  background: var(--accent-strong);
  color: var(--accent-ink);
}

.button.is-link {
  border-color: var(--teal-strong);
  background: var(--teal);
  color: #ffffff;
}

:root[data-theme="dark"] .button.is-link {
  color: #05201d;
}

.button.is-light,
.button.is-white {
  border-color: var(--line);
  background: var(--surface-muted);
  color: var(--ink);
}

.button.is-danger.is-light {
  border-color: var(--danger);
  background: var(--danger-soft);
  color: var(--danger);
}

.button[disabled] {
  opacity: 0.48;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.button-row .button.is-expanded {
  flex: 1 1 12rem;
}

.demo-note,
.notice,
.success-notice,
.error-notice {
  padding: 0.9rem 1rem;
  border-left: 0.35rem solid;
  border-radius: 0 var(--radius-small) var(--radius-small) 0;
  font-size: 0.94rem;
}

.demo-note,
.notice {
  border-color: var(--teal);
  background: var(--surface-muted);
}

.success-notice {
  border-color: var(--success);
  background: var(--success-soft);
  color: var(--ink);
}

.error-notice {
  border-color: var(--danger);
  background: var(--danger-soft);
  color: var(--ink);
}

.study-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 19rem), 1fr));
  gap: 1rem;
}

.study-card {
  position: relative;
  overflow: hidden;
  transition: transform 150ms ease, border-color 150ms ease;
}

.study-card:hover {
  border-color: var(--teal);
  transform: translateY(-2px);
}

.study-card > a {
  display: block;
  height: 100%;
  color: inherit;
  text-decoration: none;
}

.study-thumbnail {
  display: block;
  width: 100%;
  height: 10rem;
  border-bottom: 1px solid var(--line);
  background: var(--surface-muted);
  object-fit: cover;
}

.study-card-body {
  padding: 1rem;
}

.study-card-title {
  margin: 0 0 0.3rem;
  font-size: 1.22rem;
  font-weight: 900;
  letter-spacing: -0.02em;
}

.study-card-meta,
.meta-line {
  color: var(--muted);
  font-size: 0.9rem;
}

.empty-state {
  padding: 2.4rem 1.2rem;
  border: 2px dashed var(--line-strong);
  border-radius: var(--radius);
  text-align: center;
}

.empty-state .title {
  margin-bottom: 0.55rem;
  font-size: 1.45rem;
}

.wizard-shell {
  width: min(100%, 48rem);
  margin: 0 auto;
}

.wizard-shell.is-map-step {
  width: min(100%, 72rem);
}

.wizard-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.step-label {
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 800;
}

.progress-track {
  overflow: hidden;
  height: 0.62rem;
  margin-bottom: 1.2rem;
  border-radius: 999px;
  background: var(--surface-muted);
}

.progress-fill {
  height: 100%;
  border-radius: inherit;
  background: var(--teal);
  transition: width 220ms ease;
}

.wizard-question {
  margin-bottom: 1.2rem;
  font-size: clamp(1.6rem, 7vw, 2.55rem);
  letter-spacing: -0.035em;
  line-height: 1.12;
}

.wizard-help {
  margin-top: -0.55rem;
  margin-bottom: 1.25rem;
  color: var(--muted);
  font-size: 1rem;
}

.wizard-actions {
  position: sticky;
  z-index: 500;
  bottom: 0;
  display: flex;
  gap: 0.7rem;
  margin: 1.35rem -0.4rem -0.4rem;
  padding: 0.8rem 0.4rem calc(0.4rem + env(safe-area-inset-bottom));
  background: linear-gradient(to top, var(--canvas) 82%, transparent);
}

.wizard-actions .button:last-child {
  flex: 1;
}

.choice-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
}

.choice-card {
  position: relative;
  display: flex;
  min-height: 9.5rem;
  padding: 1.15rem;
  flex-direction: column;
  justify-content: space-between;
  cursor: pointer;
  box-shadow: none;
}

.choice-card:hover,
.choice-card:has(input:focus-visible) {
  border-color: var(--teal);
}

.choice-card.is-selected,
.choice-card:has(input:checked) {
  border: 3px solid var(--teal);
  background: color-mix(in srgb, var(--teal) 10%, var(--surface));
}

.choice-card input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.choice-icon {
  display: grid;
  width: 3.1rem;
  height: 3.1rem;
  place-items: center;
  border-radius: 50%;
  background: var(--accent);
  color: var(--accent-ink);
  font-size: 1.65rem;
  font-weight: 900;
}

.choice-title {
  display: block;
  margin-top: 1rem;
  font-size: 1.15rem;
  font-weight: 900;
}

.choice-description {
  display: block;
  margin-top: 0.3rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.option-list {
  display: grid;
  gap: 0.65rem;
}

.option-row {
  position: relative;
  display: flex;
  align-items: center;
  min-height: var(--tap);
  padding: 0.8rem 0.95rem;
  border: 2px solid var(--line);
  border-radius: var(--radius-small);
  background: var(--surface);
  cursor: pointer;
  font-weight: 750;
}

.option-row:has(input:checked) {
  border-color: var(--teal);
  background: color-mix(in srgb, var(--teal) 11%, var(--surface));
}

.option-row input {
  width: 1.35rem;
  height: 1.35rem;
  margin-right: 0.75rem;
  accent-color: var(--teal);
}

.map-shell {
  position: relative;
  overflow: hidden;
  border: 2px solid var(--line-strong);
  border-radius: var(--radius);
  background: #dce8e7;
  box-shadow: var(--shadow);
}

.boundary-map-shell {
  height: clamp(23rem, 58dvh, 42rem);
}

.audit-map-shell {
  height: clamp(24rem, 58dvh, 40rem);
}

.study-map-shell {
  height: clamp(22rem, 52dvh, 34rem);
}

.review-map-shell,
.detail-map-shell {
  height: 18rem;
}

.map-canvas {
  width: 100%;
  height: 100%;
  touch-action: none;
}

.leaflet-container img.leaflet-tile {
  mix-blend-mode: normal;
}

.map-crosshair {
  position: absolute;
  z-index: 600;
  top: 50%;
  left: 50%;
  width: 2.45rem;
  height: 2.45rem;
  border: 0.2rem solid var(--ink);
  border-radius: 50%;
  background: color-mix(in srgb, var(--surface) 35%, transparent);
  box-shadow: 0 0 0 0.2rem rgba(255, 255, 255, 0.78), 0 2px 10px rgba(0, 0, 0, 0.28);
  pointer-events: none;
  transform: translate(-50%, -50%);
}

.map-crosshair::before,
.map-crosshair::after {
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--ink);
  content: "";
  transform: translate(-50%, -50%);
}

.map-crosshair::before { width: 0.2rem; height: 3.3rem; }
.map-crosshair::after { width: 3.3rem; height: 0.2rem; }

.map-overlay-controls {
  position: absolute;
  z-index: 650;
  top: 0.75rem;
  right: 0.75rem;
  display: grid;
  gap: 0.5rem;
}

.map-control-button {
  display: grid;
  width: 3.35rem;
  height: 3.35rem;
  place-items: center;
  border: 2px solid rgba(8, 24, 33, 0.5);
  border-radius: 0.75rem;
  background: #ffffff;
  color: #081821;
  box-shadow: 0 3px 12px rgba(0, 0, 0, 0.22);
  cursor: pointer;
  font-size: 1.25rem;
  font-weight: 900;
}

.map-instruction {
  position: absolute;
  z-index: 640;
  top: 0.75rem;
  left: 0.75rem;
  max-width: min(70%, 20rem);
  padding: 0.62rem 0.78rem;
  border-radius: 0.65rem;
  background: rgba(8, 24, 33, 0.9);
  color: #ffffff;
  font-size: 0.84rem;
  font-weight: 750;
  pointer-events: none;
}

.map-action-tray {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.55rem;
  margin-top: 0.75rem;
}

.map-action-tray .button {
  min-width: 0;
  padding-inline: 0.6rem;
}

.map-action-tray .button.is-primary {
  grid-column: span 2;
}

.vertex-marker {
  display: grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  border: 0.3rem solid #ffffff;
  border-radius: 50%;
  background: #087c74;
  box-shadow: 0 0 0 0.2rem #081821, 0 3px 10px rgba(0, 0, 0, 0.35);
}

.leaflet-container {
  background: #dce8e7;
  color: #081821;
  font-family: inherit;
}

.leaflet-control-attribution {
  font-size: 0.68rem;
}

.leaflet-control-zoom a {
  width: 3rem !important;
  height: 3rem !important;
  font-size: 1.5rem !important;
  line-height: 3rem !important;
}

.leaflet-popup-content-wrapper,
.leaflet-popup-tip {
  color: #081821;
}

.leaflet-popup-content {
  min-width: 13rem;
  margin: 0.9rem 1rem;
  font-size: 0.9rem;
  line-height: 1.4;
}

.leaflet-popup-content a {
  display: inline-block;
  min-height: 2.5rem;
  padding-top: 0.6rem;
  color: #075f5a;
}

.location-readout {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-top: 0.75rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-small);
  background: var(--surface);
}

.location-readout .location-dot {
  width: 0.8rem;
  height: 0.8rem;
  margin-top: 0.35rem;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--map-red);
}

.study-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 1rem;
  margin-bottom: 1.15rem;
}

.study-hero .title {
  margin-bottom: 0.45rem;
  font-size: clamp(2.25rem, 9vw, 4.8rem);
}

.study-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.2rem;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
}

.study-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(18rem, 0.75fr);
  align-items: start;
  gap: 1rem;
}

.study-sidebar {
  display: grid;
  gap: 1rem;
}

.section-heading {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.85rem;
}

.section-heading .title {
  margin: 0;
  font-size: 1.35rem;
}

.progress-stat + .progress-stat {
  margin-top: 1.1rem;
}

.progress-stat-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 0.4rem;
}

.progress-stat-label {
  font-weight: 850;
}

.progress-stat-value {
  font-size: 1.35rem;
  font-weight: 950;
}

.progress-stat .progress-track {
  height: 0.82rem;
  margin: 0 0 0.35rem;
}

.progress-caption {
  color: var(--muted);
  font-size: 0.82rem;
}

.audit-history {
  margin-top: 1.2rem;
}

.audit-table-wrap {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.audit-table {
  width: 100%;
  margin: 0;
  background: transparent;
}

.audit-table th {
  border-color: var(--line);
  background: var(--surface-muted);
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.audit-table td {
  border-color: var(--line);
  vertical-align: middle;
}

.audit-table tbody tr {
  cursor: pointer;
}

.audit-table tbody tr:hover {
  background: color-mix(in srgb, var(--teal) 8%, var(--surface));
}

.audit-cards-mobile {
  display: none;
  gap: 0.75rem;
}

.audit-card {
  padding: 1rem;
  box-shadow: none;
  cursor: pointer;
}

.audit-card-title {
  margin-bottom: 0.35rem;
  font-weight: 850;
}

.audit-card-meta {
  color: var(--muted);
  font-size: 0.86rem;
}

.report-list {
  display: grid;
  gap: 0.75rem;
}

.report-card {
  padding: 1rem;
  box-shadow: none;
}

.report-card p:last-child {
  margin-bottom: 0;
}

.review-list {
  display: grid;
  gap: 0.8rem;
}

.review-card {
  padding: 1rem;
  box-shadow: none;
}

.review-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.55rem;
}

.review-label {
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.edit-link {
  min-width: 3rem;
  min-height: 2.75rem;
  border: 0;
  background: transparent;
  color: var(--teal);
  cursor: pointer;
  font-weight: 850;
}

.answers-list {
  margin: 0;
}

.answer-row {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  gap: 0.8rem;
  padding: 0.8rem 0;
  border-top: 1px solid var(--line);
}

.answer-row:first-child {
  border-top: 0;
}

.answer-row dt {
  font-weight: 800;
}

.answer-row dd {
  margin: 0;
  color: var(--muted);
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
}

.detail-item {
  padding: 0.85rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-small);
  background: var(--surface-muted);
}

.detail-item-label {
  display: block;
  margin-bottom: 0.2rem;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.modal-backdrop {
  position: fixed;
  z-index: 2000;
  inset: 0;
  display: grid;
  padding: 1rem;
  place-items: center;
  background: rgba(3, 13, 18, 0.72);
  backdrop-filter: blur(5px);
}

.modal-card-custom {
  width: min(100%, 31rem);
  max-height: 90dvh;
  overflow: auto;
  padding: 1.35rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.4);
}

.loading-phases {
  display: grid;
  gap: 0.85rem;
  margin-top: 1.2rem;
}

.loading-phase {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--muted);
  font-weight: 750;
}

.loading-phase.is-active {
  color: var(--ink);
}

.phase-indicator {
  width: 1rem;
  height: 1rem;
  border: 0.18rem solid var(--line-strong);
  border-radius: 50%;
}

.loading-phase.is-active .phase-indicator {
  border-color: var(--accent-strong);
  border-top-color: transparent;
  animation: spin 0.8s linear infinite;
}

.toast-region {
  position: fixed;
  z-index: 3000;
  right: max(1rem, env(safe-area-inset-right));
  bottom: calc(1rem + env(safe-area-inset-bottom));
  display: grid;
  width: min(calc(100% - 2rem), 25rem);
  gap: 0.6rem;
  pointer-events: none;
}

.toast {
  padding: 0.85rem 1rem;
  border: 1px solid var(--line);
  border-left: 0.35rem solid var(--teal);
  border-radius: var(--radius-small);
  background: var(--surface-raised);
  color: var(--ink);
  box-shadow: var(--shadow);
  font-weight: 750;
  animation: toast-in 180ms ease-out;
}

.toast.is-error {
  border-left-color: var(--danger);
}

@keyframes toast-in {
  from { opacity: 0; transform: translateY(0.65rem); }
}

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

@media (max-width: 800px) {
  :root { --header-height: 4rem; }

  #app {
    padding-top: 1rem;
  }

  .brand-copy span:last-child {
    display: none;
  }

  .sync-status {
    display: none;
  }

  .page-heading,
  .study-hero {
    align-items: stretch;
    flex-direction: column;
  }

  .page-heading {
    display: flex;
  }

  .study-hero {
    display: flex;
  }

  .study-hero-actions .button {
    width: 100%;
  }

  .study-layout {
    grid-template-columns: 1fr;
  }

  .study-sidebar {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .study-sidebar .panel-card:last-child {
    grid-column: 1 / -1;
  }

  .audit-table-wrap {
    display: none;
  }

  .audit-cards-mobile {
    display: grid;
  }
}

@media (max-width: 560px) {
  #app {
    padding-right: max(0.85rem, env(safe-area-inset-right));
    padding-left: max(0.85rem, env(safe-area-inset-left));
  }

  .brand-copy strong {
    font-size: 0.88rem;
  }

  .account-button {
    width: var(--tap);
    padding: 0;
    font-size: 0;
  }

  .account-button::after {
    content: attr(data-initial);
    font-size: 1rem;
  }

  .page-heading .button,
  .button-row .button,
  .section-heading .button {
    width: 100%;
  }

  .choice-grid,
  .detail-grid,
  .study-sidebar {
    grid-template-columns: 1fr;
  }

  .study-sidebar .panel-card:last-child {
    grid-column: auto;
  }

  .choice-card {
    min-height: 7.5rem;
  }

  .map-action-tray {
    grid-template-columns: repeat(3, 1fr);
  }

  .map-action-tray .button.is-primary {
    grid-column: 1 / -1;
  }

  .map-action-tray .button.is-link {
    grid-column: 1 / -1;
  }

  .answer-row {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }

  .wizard-actions .button {
    padding-inline: 0.8rem;
  }

  .boundary-map-shell,
  .audit-map-shell {
    height: clamp(23rem, 57dvh, 34rem);
    margin-right: -0.85rem;
    margin-left: -0.85rem;
    border-right: 0;
    border-left: 0;
    border-radius: 0;
  }

  .study-map-shell {
    height: 58dvh;
    margin-right: -1.2rem;
    margin-left: -1.2rem;
    border-right: 0;
    border-left: 0;
    border-radius: 0;
  }
}

@media (max-height: 700px) and (max-width: 560px) {
  .boundary-map-shell,
  .audit-map-shell {
    height: 24rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

@media (prefers-contrast: more) {
  :root {
    --line: #6d7b7e;
    --line-strong: #273b40;
  }

  .button,
  .panel-card,
  .study-card,
  .choice-card,
  .map-shell {
    border-width: 3px;
  }
}

/* Study-owned question authoring keeps ordinary page scrolling. */
.dashboard-group { margin-top: 2rem; }
.question-editor-list { display: grid; gap: 1rem; }
.question-editor-card { padding: 1rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.question-editor-heading { display: flex; justify-content: space-between; gap: 1rem; margin-bottom: 0.75rem; }
.question-options { margin-top: 1rem; }
.question-option, .question-add-row { display: flex; gap: 0.5rem; margin-bottom: 0.5rem; }
.question-option .input, .question-add-row .select { flex: 1; min-width: 0; }
.question-required { display: block; margin: 1rem 0; }
.audit-photo-gallery { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0.75rem; }
.audit-photo-gallery img { display: block; width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: 0.5rem; }
#login-zoom-email, .login-zoom-navigation { display: none; }

/* Full viewport maps sit behind their controls, without a reserved header band. */
html.is-map-viewport { min-width: 0; overflow: hidden; }
body.is-map-viewport { height: min(var(--walk-viewport-height, 100dvh), 100dvh); overflow: hidden; overscroll-behavior: none; }
body.is-map-viewport .app-header, body.is-map-viewport .offline-banner { display: none; }
body.is-map-viewport #app { position: fixed; inset: 0; width: 100%; height: min(var(--walk-viewport-height, 100dvh), 100dvh); min-height: 0; padding: 0; overflow: hidden; }
body.is-map-viewport .wizard-shell.is-map-step { position: absolute; inset: 0; width: 100%; height: 100%; margin: 0; overflow: hidden; }
body.is-map-viewport .map-shell { position: absolute; inset: 0; width: 100%; height: 100%; margin: 0; border: 0; border-radius: 0; box-shadow: none; }
body.is-map-viewport .wizard-topline { position: absolute; z-index: 800; top: max(0.4rem, env(safe-area-inset-top)); left: max(0.6rem, env(safe-area-inset-left)); right: max(0.6rem, env(safe-area-inset-right)); height: 2rem; margin: 0; padding: 0.35rem 0.65rem; overflow: hidden; border-radius: 0.6rem; background: var(--surface); }
body.is-map-viewport .wizard-topline .eyebrow { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
body.is-map-viewport .wizard-topline .step-label { flex: none; white-space: nowrap; }
body.is-map-viewport .wizard-question { position: absolute; z-index: 800; top: calc(2.6rem + env(safe-area-inset-top)); left: max(0.6rem, env(safe-area-inset-left)); max-width: calc(100% - 1.2rem); margin: 0; padding: 0.4rem 0.65rem; border-radius: 0.6rem; background: var(--surface); font-size: 1.25rem; line-height: 1.15; }
body.is-map-viewport .wizard-shell > .progress-track, body.is-map-viewport .wizard-shell > .wizard-help { display: none; }
body.is-map-viewport .map-instruction { top: calc(6rem + env(safe-area-inset-top)); left: max(0.6rem, env(safe-area-inset-left)); }
body.is-map-viewport .map-overlay-controls { top: calc(6rem + env(safe-area-inset-top)); right: max(0.6rem, env(safe-area-inset-right)); }
body.is-map-viewport .map-action-tray { position: absolute; z-index: 800; right: max(0.6rem, env(safe-area-inset-right)); bottom: max(0.6rem, env(safe-area-inset-bottom)); left: max(0.6rem, env(safe-area-inset-left)); display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 0.35rem; margin: 0; }
body.is-map-viewport .map-action-tray .button { grid-column: span 2; min-width: 0; }
body.is-map-viewport .map-action-tray .button.is-link, body.is-map-viewport .map-action-tray .button.is-primary { grid-column: span 3; }
body.is-map-viewport .wizard-actions { position: absolute; z-index: 800; right: max(0.6rem, env(safe-area-inset-right)); bottom: max(0.6rem, env(safe-area-inset-bottom)); left: max(0.6rem, env(safe-area-inset-left)); margin: 0; padding: 0; background: none; }
body.is-map-viewport .wizard-actions .button { min-width: 0; }
body.is-map-viewport .location-readout { position: absolute; z-index: 800; right: max(0.6rem, env(safe-area-inset-right)); bottom: calc(4.5rem + env(safe-area-inset-bottom)); left: max(0.6rem, env(safe-area-inset-left)); margin: 0; padding: 0.55rem 0.7rem; border-radius: 0.7rem; background: var(--surface); }
body.is-map-viewport .route-readout { display: block; }
body.is-map-viewport .route-readout .help { margin: 0.1rem 0; }
body.is-map-viewport .route-controls { display: flex; gap: 0.35rem; margin-top: 0.25rem; }
body.is-map-viewport .route-controls .button { flex: 1; min-width: 0; padding-inline: 0.3rem; font-size: 0.8rem; }
body.is-map-viewport #audit-location-error, body.is-map-viewport #boundary-error { position: absolute; z-index: 900; top: calc(10rem + env(safe-area-inset-top)); left: 0.6rem; right: 0.6rem; margin: 0; }
body.is-map-viewport .leaflet-bottom.leaflet-right { bottom: calc(11rem + env(safe-area-inset-bottom)); }
body.is-map-viewport .audit-map-shell .leaflet-bottom.leaflet-right { bottom: calc(14.5rem + env(safe-area-inset-bottom)); }
body.is-map-viewport .leaflet-control-zoom a { width: 52px !important; height: 52px !important; line-height: 52px !important; }
.route-pin { display: grid; width: 36px; height: 36px; place-items: center; border: 3px solid #fff; border-radius: 50%; background: #d3263e; color: #fff; font-weight: 900; box-shadow: 0 1px 7px #0008; }
body.is-map-viewport.text-zoomed { --tap: 52px; }
body.is-map-viewport.text-zoomed .wizard-topline { top: max(6px, env(safe-area-inset-top)); height: 40px; padding: 4px 10px; }
body.is-map-viewport.text-zoomed .wizard-question { top: calc(50px + env(safe-area-inset-top)); padding: 4px 10px; font-size: 1rem; }
body.is-map-viewport.text-zoomed .map-instruction, body.is-map-viewport.text-zoomed .map-overlay-controls { top: calc(110px + env(safe-area-inset-top)); }
body.is-map-viewport.text-zoomed .map-control-button { width: 52px; height: 52px; }
body.is-map-viewport.text-zoomed .location-readout { bottom: calc(68px + env(safe-area-inset-bottom)); padding: 6px 10px; font-size: 0.75rem; }
body.is-map-viewport.text-zoomed .route-controls .button, body.is-map-viewport.text-zoomed .wizard-actions .button, body.is-map-viewport.text-zoomed .map-action-tray .button { min-height: 52px; height: auto; padding: 4px; font-size: 0.7rem; line-height: 1.1; white-space: normal; overflow-wrap: anywhere; }
body.is-map-viewport.text-zoomed .wizard-actions, body.is-map-viewport.text-zoomed .map-action-tray { bottom: max(8px, env(safe-area-inset-bottom)); }
body.is-map-viewport.text-zoomed .leaflet-bottom.leaflet-right { bottom: calc(176px + env(safe-area-inset-bottom)); }
body.is-map-viewport.text-zoomed .audit-map-shell .leaflet-bottom.leaflet-right { bottom: calc(230px + env(safe-area-inset-bottom)); }

@media (max-width: 640px) {
  html.is-compact-viewport { min-width: 0; overflow: hidden; }
  html.is-compact-viewport.viewport-constrained { overflow: auto; }
  body.is-compact-viewport:not(.viewport-constrained) { height: min(var(--walk-viewport-height, 100dvh), 100dvh); overflow: hidden; overscroll-behavior: none; }
  body.is-compact-viewport:not(.viewport-constrained) #app { height: calc(min(var(--walk-viewport-height, 100dvh), 100dvh) - var(--header-height)); min-height: 0; padding: 0.5rem max(0.7rem, env(safe-area-inset-left)) max(0.5rem, env(safe-area-inset-bottom)); overflow: hidden; }
  body.is-compact-viewport:not(.viewport-constrained) .wizard-shell { display: flex; flex-direction: column; width: 100%; height: 100%; min-height: 0; }
  body.is-compact-viewport .wizard-topline { flex: none; margin-bottom: 0.35rem; }
  body.is-compact-viewport .wizard-topline .eyebrow { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  body.is-compact-viewport .wizard-topline .step-label { flex: none; white-space: nowrap; }
  body.is-compact-viewport .progress-track { flex: none; height: 0.45rem; margin-bottom: 0.55rem; }
  body.is-compact-viewport .wizard-question { flex: none; margin-bottom: 0.55rem; font-size: 1.35rem; line-height: 1.16; }
  body.is-compact-viewport .wizard-question, body.is-compact-viewport .option-row span, body.is-compact-viewport .review-page { min-width: 0; overflow-wrap: anywhere; }
  body.is-compact-viewport .wizard-help { margin: 0 0 0.5rem; font-size: 0.9rem; }
  body.is-compact-viewport .wizard-actions { position: static; flex: none; margin: auto 0 0; padding: 0.4rem 0 0; background: none; }
  body.is-compact-viewport .option-list { gap: 0.35rem; }
  body.is-compact-viewport .option-row { min-height: 52px; padding: 0.45rem 0.6rem; }
  body.is-compact-viewport .choice-title { font-size: 1rem; }
  body.is-compact-viewport .choice-description { font-size: 0.8rem; }
  body.is-compact-viewport .compact-question .textarea { min-height: 6rem; height: 8rem; }
  body.is-compact-viewport .compact-question .help { margin-top: 0.35rem !important; }
  body.is-compact-viewport .login-shell { display: block; min-height: 0; height: 100%; }
  body.is-compact-viewport .login-panel { height: 100%; padding: 0.8rem; border: 0; box-shadow: none; }
  body.is-compact-viewport .login-panel .title { margin-bottom: 0.35rem; font-size: 1.55rem; }
  body.is-compact-viewport .login-panel .subtitle { margin-bottom: 0.6rem; font-size: 0.95rem; }
  body.is-compact-viewport .login-panel .field { margin-bottom: 0.5rem; }
  body.is-compact-viewport .login-panel .label { margin-bottom: 0.2rem; }
  body.is-compact-viewport .login-panel .mb-5, body.is-compact-viewport .login-panel .mb-4 { margin-bottom: 0.55rem !important; }
  body.is-compact-viewport .login-panel .mt-3, body.is-compact-viewport .login-panel .mt-4 { margin-top: 0.35rem !important; }
  .login-help { margin-top: 0.3rem; font-size: 0.8rem; }
  .review-compact { min-height: 0; }
  .review-compact .edit-link { min-height: 52px; }
  .review-compact p { margin-bottom: 0.2rem; }
  .review-page { min-height: 4.5rem; padding: 0.4rem 0.55rem; border: 1px solid var(--line); border-radius: 0.55rem; }
  .review-page-controls, .review-edit-controls { display: flex; gap: 0.3rem; margin-top: 0.3rem; }
  .worksheet-page-controls, .type-page-controls { display: flex; align-items: center; gap: 0.4rem; margin-top: 0.4rem; }
  .worksheet-page-controls .button, .type-page-controls .button { flex: 1; min-width: 0; white-space: normal; }
  .review-page-controls .button, .review-edit-controls .button { flex: 1; min-width: 0; padding-inline: 0.25rem; white-space: normal; font-size: 0.75rem; }
  .photo-heading { display: flex; align-items: baseline; gap: 0.5rem; margin: 0.35rem 0 0.15rem; }
  .photo-slots { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0.35rem; }
  .photo-slot { min-width: 0; text-align: center; }
  .photo-slot img, .photo-placeholder { display: block; width: 100%; height: 3.5rem; object-fit: cover; border: 1px solid var(--line); border-radius: 0.4rem; }
  .photo-placeholder { display: grid; place-items: center; font-size: 0.75rem; }
  .photo-slot-actions { display: flex; }
  .photo-slot .button { flex: 1; width: 100%; min-width: 0; padding-inline: 0.15rem; font-size: 0.75rem; }
  .photo-error { display: block; font-size: 0.7rem; line-height: 1.1; overflow-wrap: anywhere; }
  body.is-compact-viewport .error-notice:not([hidden]) { position: fixed; z-index: 1200; top: 30%; left: 0.7rem; right: 0.7rem; margin: 0 !important; padding: 0.7rem; box-shadow: 0 4px 20px #0005; }
  body.is-compact-viewport .error-notice { overflow-wrap: anywhere; }
  .error-page-actions { display: flex; gap: 0.4rem; margin-top: 0.4rem; }
  .error-page-actions .button { flex: 1; min-width: 0; }
  body.viewport-constrained.is-compact-viewport { overflow: auto; }
  html.is-compact-viewport.text-zoomed:not(.keyboard-constrained) { overflow: hidden; }
  body.is-compact-viewport.text-zoomed:not(.keyboard-constrained) { --tap: 52px; --header-height: 68px; height: min(var(--walk-viewport-height, 100dvh), 100dvh); overflow: hidden; }
  body.is-compact-viewport.text-zoomed:not(.keyboard-constrained) .app-header { height: 68px; }
  body.is-compact-viewport.text-zoomed:not(.keyboard-constrained) #app { height: calc(min(var(--walk-viewport-height, 100dvh), 100dvh) - 68px); min-height: 0; padding: 0.4rem 0.7rem; overflow: hidden; }
  body.is-compact-viewport.text-zoomed:not(.keyboard-constrained) .wizard-shell { display: flex; flex-direction: column; width: 100%; height: 100%; min-height: 0; }
  body.is-compact-viewport.text-zoomed .wizard-question { font-size: 1rem; }
  body.is-compact-viewport.text-zoomed .wizard-help, body.is-compact-viewport.text-zoomed .help { font-size: 0.7rem; }
  body.is-compact-viewport.text-zoomed .button { height: auto; min-height: 52px; font-size: 0.75rem; line-height: 1.1; overflow-wrap: anywhere; }
  body.is-compact-viewport.text-zoomed .app-header { padding-inline: 8px; }
  body.is-compact-viewport.text-zoomed .brand-copy strong { font-size: 0.65rem; }
  body.is-compact-viewport.text-zoomed .header-actions { gap: 4px; }
  body.is-compact-viewport.text-zoomed .wizard-actions { gap: 8px; }
  body.is-compact-viewport.text-zoomed .wizard-actions .button { flex: 1 1 0; min-width: 0; padding: 4px; white-space: normal; }
  body.is-compact-viewport.text-zoomed .type-page-controls .button,
  body.is-compact-viewport.text-zoomed .review-page-controls .button,
  body.is-compact-viewport.text-zoomed .review-edit-controls .button { padding: 4px; font-size: 0.6rem; }
  body.is-compact-viewport.text-zoomed .review-page-controls,
  body.is-compact-viewport.text-zoomed .review-edit-controls { gap: 4px; }
  body.is-compact-viewport.text-zoomed .review-section-controls { display: flex; gap: 4px; margin-top: 0.35rem; }
  body.is-compact-viewport.text-zoomed .review-section-controls .button { flex: 1; min-width: 0; padding: 4px; font-size: 0.6rem; white-space: normal; }
  html.is-login-screen.viewport-constrained { overflow: hidden; }
  body.is-login-screen.viewport-constrained.is-compact-viewport { --tap: 52px; --header-height: 68px; height: min(var(--walk-viewport-height, 100dvh), 100dvh); overflow: hidden; }
  body.is-login-screen.viewport-constrained .app-header { height: 68px; }
  body.is-login-screen.viewport-constrained #app { height: calc(min(var(--walk-viewport-height, 100dvh), 100dvh) - 68px); min-height: 0; padding: 0.4rem 0.7rem; overflow: hidden; }
  body.is-login-screen.viewport-constrained .login-shell { height: 100%; min-height: 0; }
  body.is-login-screen.viewport-constrained .login-panel { height: 100%; padding: 0.4rem; }
  body.is-login-screen.viewport-constrained .login-panel .title { margin-bottom: 0.4rem; font-size: 1rem; }
  body.is-login-screen.viewport-constrained .login-panel .subtitle { display: none; }
  body.is-login-screen.viewport-constrained .login-panel .button { white-space: normal; line-height: 1.15; }
  body.is-login-screen.viewport-constrained .login-help summary { min-height: 52px; }
  body.is-login-screen.viewport-constrained [data-login-stage="choice"] #login-zoom-email { display: inline-flex; }
  body.is-login-screen.viewport-constrained [data-login-stage="choice"] #firebase-login-form,
  body.is-login-screen.viewport-constrained [data-login-stage="choice"] #reset-password { display: none; }
  body.is-login-screen.viewport-constrained [data-login-stage="email"] #google-sign-in,
  body.is-login-screen.viewport-constrained [data-login-stage="email"] #login-password-field,
  body.is-login-screen.viewport-constrained [data-login-stage="email"] #login-create-field,
  body.is-login-screen.viewport-constrained [data-login-stage="email"] #login-email-submit,
  body.is-login-screen.viewport-constrained [data-login-stage="email"] .login-help { display: none; }
  body.is-login-screen.viewport-constrained [data-login-stage="password"] #google-sign-in,
  body.is-login-screen.viewport-constrained [data-login-stage="password"] #login-email-field,
  body.is-login-screen.viewport-constrained [data-login-stage="password"] #reset-password,
  body.is-login-screen.viewport-constrained [data-login-stage="password"] .login-help,
  body.is-login-screen.viewport-constrained [data-login-stage="password"] #login-zoom-next { display: none; }
  body.is-login-screen.viewport-constrained [data-login-stage="email"] .login-zoom-navigation,
  body.is-login-screen.viewport-constrained [data-login-stage="password"] .login-zoom-navigation { display: flex; gap: 0.4rem; margin-top: 0.4rem; }
  body.is-login-screen.viewport-constrained .login-zoom-navigation .button { flex: 1; min-width: 0; }
}

@media (max-width: 640px) and (max-height: 680px) {
  body.is-compact-viewport .wizard-question { font-size: 1.2rem; }
  .review-page { min-height: 3.5rem; font-size: 0.9rem; line-height: 1.25; }
  .photo-slot img, .photo-placeholder { height: 2.5rem; }
}

@media (orientation: landscape) and (max-height: 500px) {
  body.is-map-viewport .map-overlay-controls { top: calc(2.6rem + env(safe-area-inset-top)); }
  body.is-map-viewport .leaflet-bottom.leaflet-right,
  body.is-map-viewport .audit-map-shell .leaflet-bottom.leaflet-right { bottom: calc(5rem + env(safe-area-inset-bottom)); }
  body.is-map-viewport .map-action-tray { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  body.is-map-viewport .map-action-tray .button,
  body.is-map-viewport .map-action-tray .button.is-link,
  body.is-map-viewport .map-action-tray .button.is-primary { grid-column: auto; }
  body.is-map-viewport .location-readout { right: auto; width: calc(100% - 260px); max-width: 30rem; }
  body.is-map-viewport #audit-location-error,
  body.is-map-viewport #boundary-error { top: calc(5rem + env(safe-area-inset-top)); right: auto; width: calc(100% - 260px); }
  body.is-map-viewport.text-zoomed .map-overlay-controls { top: calc(50px + env(safe-area-inset-top)); }
  body.is-map-viewport.text-zoomed .leaflet-bottom.leaflet-right,
  body.is-map-viewport.text-zoomed .audit-map-shell .leaflet-bottom.leaflet-right { bottom: calc(80px + env(safe-area-inset-bottom)); }
}