/* Mobile-first workflow and context-layer refinements — 2026-07-27.
   Loaded after the legacy stylesheet so phone layouts are the default and
   wider layouts are progressively enhanced. Internal GIS/API names remain
   unchanged; participant-facing language uses location-based context. */

:root {
  --mobile-page-gutter: 12px;
  --mobile-card-padding: 16px;
  --mobile-control-height: 52px;
  --mobile-sticky-offset: env(safe-area-inset-bottom, 0px);
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: 76px;
}

body {
  min-width: 320px;
  overflow-x: hidden;
  background-attachment: scroll !important;
}

button,
input,
select,
textarea {
  font-size: 16px;
}

.site-header,
.landing-story,
.workflow-shell,
.site-footer {
  width: calc(100% - (var(--mobile-page-gutter) * 2));
}

.workflow-shell {
  gap: 16px;
  padding-bottom: calc(88px + var(--mobile-sticky-offset));
}

.workflow-page {
  padding-top: 20px;
}

.workflow-intro {
  gap: 10px;
  padding: 18px 0 22px;
}

.workflow-intro h1 {
  max-width: none;
  font-size: clamp(2rem, 10vw, 3rem) !important;
  line-height: 1.02;
}

.workflow-intro p:not(.eyebrow) {
  font-size: 0.98rem;
  line-height: 1.55;
}

/* The step rail behaves like a touch-friendly horizontal tab list. */
.step-tabs {
  position: sticky;
  top: 0;
  z-index: 1200;
  display: flex;
  gap: 4px;
  width: 100%;
  padding: 5px;
  overflow-x: auto;
  overflow-y: hidden;
  border-radius: 16px;
  scroll-padding-inline: 5px;
  scroll-snap-type: x proximity;
  overscroll-behavior-x: contain;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.step-tabs::-webkit-scrollbar {
  display: none;
}

.step-tab {
  flex: 0 0 auto;
  min-width: 104px;
  min-height: 48px;
  padding: 9px 12px;
  border-radius: 12px !important;
  scroll-snap-align: start;
  white-space: nowrap;
}

.progress-card {
  gap: 8px;
  padding: 11px 2px 14px;
}

#progressText {
  font-size: 0.86rem;
  line-height: 1.4;
}

.workflow-step {
  gap: 18px;
  min-height: 0;
  padding: 24px 0 12px;
  scroll-margin-top: 74px;
}

.workflow-step::before {
  margin-bottom: 2px;
  padding-bottom: 6px;
  font-size: 0.68rem;
}

.step-heading {
  gap: 8px;
}

.step-heading h2 {
  max-width: none !important;
  font-size: clamp(1.85rem, 8.8vw, 2.65rem) !important;
  line-height: 1.04;
}

.step-heading p,
.step-heading p:last-child {
  margin-bottom: 0;
  font-size: 0.97rem;
  line-height: 1.55;
}

.upload-card,
.profile-placeholder,
.placeholder-card,
.survey-card,
.card--media,
.consent-card,
.deletion-code-card,
.step-status-card,
.location-grid,
.questionnaire-scale,
.image-preview-card,
.location-confirmation-card,
.context-layer-preview,
.location-confirm-action {
  padding: var(--mobile-card-padding);
  border-radius: 18px;
}

.location-confirmation-card,
.context-layer-preview,
.location-confirm-action {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow-soft);
}

.primary-action,
.secondary-action {
  min-height: var(--mobile-control-height);
  width: 100%;
  border-radius: 16px;
  padding: 12px 15px;
  line-height: 1.25;
}

.upload-options,
.quick-context-actions,
.location-gis-validation__actions,
.participant-contribution-actions,
.participant-panel-actions {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  width: 100%;
}

.upload-options > *,
.quick-context-actions > *,
.location-gis-validation__actions > *,
.participant-contribution-actions > *,
.participant-panel-actions > * {
  width: 100%;
}

.file-drop {
  min-height: 250px;
  padding: 22px 14px;
  border-radius: 18px;
}

.file-drop:has(.image-preview-card:not([hidden])) {
  min-height: 0;
  padding: 14px;
}

.file-drop .image-preview-card img {
  aspect-ratio: 4 / 3;
  max-height: 58svh;
}

.street-camera-capture {
  padding: 10px;
  border-radius: 16px;
}

.street-camera-capture video {
  max-height: 60svh;
  border-radius: 12px;
}

/* Compact mobile questionnaire: definitions appear once, each question uses
   five large numbered targets rather than five full-width text rows. */
.questionnaire-scale {
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 14px;
}

.questionnaire-scale span {
  grid-template-columns: 28px 1fr;
  align-items: baseline;
  gap: 8px;
  font-size: 0.84rem;
}

.question-card {
  padding: 18px 0;
}

.question-card legend {
  font-size: 0.98rem;
  line-height: 1.45;
}

.likert-row {
  display: grid !important;
  grid-template-columns: repeat(5, minmax(0, 1fr)) !important;
  gap: 7px;
  margin-top: 12px;
}

.likert-row label {
  position: relative;
  width: auto !important;
  min-width: 0;
  min-height: 52px;
  justify-content: center !important;
  padding: 8px 4px;
  border-radius: 12px;
}

.likert-row input {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.likert-number {
  display: grid;
  place-items: center;
  min-width: 28px;
  min-height: 28px;
  font-size: 1rem;
  font-weight: 900;
}

.likert-description {
  display: none;
}

.quick-context-fields,
.quick-context-options,
.location-source-options {
  grid-template-columns: 1fr !important;
}

.quick-context-option,
.location-source-option {
  min-height: 52px;
  padding: 12px 13px;
  border-radius: 14px;
}

/* Step 3 now reads as: confirm a point, view context, confirm the record. */
.location-context-flow {
  gap: 16px;
}

.location-confirmation-card,
.context-map-card {
  display: grid;
  gap: 16px;
}

.step3-section-heading {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  align-items: start;
  gap: 11px;
}

.step3-section-heading h3,
.context-map-card h3 {
  margin: 2px 0 5px;
  font-size: 1.12rem;
}

.step3-section-heading p:last-child {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.5;
}

.step3-section-number {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-weight: 900;
}

.location-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
}

.location-source-field {
  grid-column: auto;
}

.location-source-field .field-label {
  margin: 0 0 8px;
}

.coordinate-field,
.street-name-field {
  display: grid;
  gap: 6px;
  min-width: 0;
}

.street-name-field {
  grid-column: auto;
}

.location-grid input,
.location-grid select,
.profile-placeholder select,
.quick-context-text-field input {
  min-height: var(--mobile-control-height);
  border-radius: 14px;
  padding: 12px 13px;
}

.context-map-card {
  padding: var(--mobile-card-padding);
  overflow: hidden;
}

.map-shell {
  height: clamp(300px, 52svh, 430px);
  border-radius: 16px;
}

.map-shell .workflow-gis-map,
.workflow-gis-map {
  height: 100%;
  min-height: 0;
  border-radius: 16px;
}

.workflow-gis-map:empty::before {
  content: "Loading context map…";
  padding: 16px;
  text-align: center;
}

.map-overlay {
  padding: 10px;
}

.map-overlay--action {
  align-items: flex-end;
  flex-wrap: nowrap;
  gap: 7px;
}

.btn--map-action {
  min-height: 42px;
  width: auto;
  flex: 1 1 0;
  padding: 8px 10px;
  border-radius: 12px;
  font-size: 0.78rem;
}

.field--map-legend {
  gap: 10px;
}

.context-layer-control-heading {
  display: grid;
  gap: 8px;
}

.context-layer-label {
  margin: 0;
  color: var(--ink);
  font-size: 0.92rem;
  font-weight: 850;
}

.context-layer-help {
  margin: 3px 0 0;
  font-size: 0.82rem;
  line-height: 1.4;
}

.gis-boundary-unit {
  display: grid;
  gap: 2px;
}

.gis-control-group,
.gis-dim-switch {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 7px;
}

.gis-chip {
  min-width: 0;
  min-height: 46px;
  padding: 9px 5px;
  border-radius: 13px;
  font-size: 0.82rem;
}

.gis-legend {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.gis-legend span {
  min-width: 0;
  font-size: 0.78rem;
}

.context-layer-preview {
  display: grid;
  gap: 9px;
  background: rgba(246, 242, 251, 0.78);
}

.context-layer-preview > strong {
  font-size: 1rem;
}

.context-layer-preview > p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.45;
}

.context-layer-preview__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 7px;
}

.context-layer-preview__grid article {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 46px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.88);
}

.context-layer-preview__grid article span {
  color: var(--muted);
  font-size: 0.84rem;
}

.context-layer-preview__grid article strong {
  font-size: 0.86rem;
  text-align: right;
}

.context-layer-preview__warning {
  padding-top: 8px;
  border-top: 1px solid var(--line);
  color: var(--warning) !important;
  font-weight: 750;
}

.location-gis-validation {
  padding: 14px;
  border-radius: 16px;
}

.location-confirm-action {
  display: grid;
  gap: 9px;
  background: rgba(255, 255, 255, 0.94);
}

.location-confirm-action p {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.42;
  text-align: center;
}

.step-status-card {
  padding: 14px;
}

.step-status-card h3 {
  margin-bottom: 6px;
}

.step-status-card p {
  margin-bottom: 0;
  font-size: 0.9rem;
  line-height: 1.45;
}

/* Primary workflow actions remain reachable above browser chrome and safe area. */
.step-actions {
  position: sticky;
  bottom: 0;
  z-index: 1100;
  display: grid !important;
  grid-template-columns: repeat(auto-fit, minmax(0, 1fr));
  gap: 8px;
  margin-inline: calc(var(--mobile-page-gutter) * -1);
  padding: 10px var(--mobile-page-gutter) calc(10px + var(--mobile-sticky-offset));
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 -10px 30px rgba(61, 42, 86, 0.08);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}

.step-actions > * {
  width: 100%;
  min-width: 0;
}

/* Mobile diagnostic and redesign outputs should wrap rather than overflow. */
.diagnostic-report-output,
.directions-output,
.scenario-output,
.diagnostic-report-output * {
  min-width: 0;
  overflow-wrap: anywhere;
}

.diagnostic-location-map {
  min-height: 280px;
}

.diagnostic-radar-chart,
.diagnostic-image-panel,
.diagnostic-location-map {
  border-radius: 16px;
}

/* Landing and consent pages also follow the phone-first rhythm. */
.site-header.cinematic-hero.tracing-art-motion {
  min-height: 100svh;
  padding: 64px 16px 88px;
}

.hero-actions {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.story-dots {
  display: none;
}

.narrative-chapter.trace-scene,
.narrative-chapter {
  min-height: 0;
  grid-template-columns: 1fr;
  gap: 18px;
  padding-block: 30px;
}

.chapter-panel,
.chapter-scale,
.chapter-map,
.trace-constellation {
  min-height: 220px;
}

.participant-consent-screen {
  padding-inline: 0;
}

.participant-consent-screen .participant-info-card,
.participant-info-panel {
  border-radius: 18px;
}

.participant-info-card__heading,
.participant-info-card__body {
  padding-inline: 16px;
}

@media (hover: none) {
  .primary-action:hover,
  .secondary-action:hover,
  .gis-chip:hover,
  .likert-row label:hover,
  .upload-card:hover,
  .survey-card:hover,
  .gis-map-card:hover,
  .placeholder-card:hover {
    transform: none !important;
  }
}

/* Progressive enhancement for tablets and desktop. */
@media (min-width: 680px) {
  :root {
    --mobile-page-gutter: 20px;
    --mobile-card-padding: 20px;
  }

  .upload-options,
  .quick-context-actions,
  .location-gis-validation__actions,
  .participant-contribution-actions,
  .participant-panel-actions {
    display: flex;
    flex-wrap: wrap;
  }

  .upload-options > *,
  .quick-context-actions > *,
  .location-gis-validation__actions > *,
  .participant-contribution-actions > *,
  .participant-panel-actions > * {
    width: auto;
  }

  .location-source-options {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
  }

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

  .location-source-field,
  .street-name-field {
    grid-column: 1 / -1;
  }

  .context-layer-control-heading {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
  }

  .gis-boundary-unit {
    text-align: right;
  }

  .gis-legend {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .context-layer-preview__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .context-layer-preview__grid article {
    display: grid;
    align-content: center;
  }

  .context-layer-preview__grid article strong {
    text-align: left;
  }

  .likert-row {
    display: flex !important;
    flex-wrap: wrap;
  }

  .likert-row label {
    flex: 1 1 150px;
    width: auto !important;
    justify-content: flex-start !important;
    gap: 8px;
    padding-inline: 12px;
  }

  .likert-description {
    display: inline;
    font-size: 0.8rem;
  }

  .step-actions {
    position: static;
    display: flex !important;
    justify-content: flex-end;
    margin-inline: 0;
    padding: 18px 0 0;
    background: transparent;
    box-shadow: none;
    backdrop-filter: none;
  }

  .step-actions > * {
    width: auto;
    min-width: 150px;
  }

  .hero-actions {
    display: flex;
  }
}

@media (min-width: 920px) {
  :root {
    --mobile-page-gutter: 28px;
  }

  .workflow-shell {
    gap: 28px;
    padding-bottom: 68px;
  }

  .workflow-page {
    padding-top: 42px;
  }

  .workflow-step {
    gap: 22px;
    padding: 48px 0;
  }

  .step-heading h2 {
    font-size: var(--type-step) !important;
  }

  .step-tabs {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    overflow: hidden;
    border-radius: 28px;
  }

  .step-tab {
    min-width: 0;
  }

  .location-context-flow {
    gap: 22px;
  }

  .location-confirmation-card,
  .context-map-card {
    padding: 24px;
  }

  .map-shell {
    height: clamp(380px, 52vh, 540px);
  }

  .location-confirm-action {
    grid-template-columns: minmax(220px, 0.35fr) minmax(0, 1fr);
    align-items: center;
  }

  .location-confirm-action p {
    text-align: left;
  }
}