body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
  }
  
  main {
    flex: 1;
  }
  
  /* Overall page width */
  .section,
  .site-header__inner,
  .site-footer {
    max-width: 1080px;
    padding: 2.5rem 1.75rem;
    margin: 0 auto;
  }
  
  /* Header — frosted glass, transparent so page gradient shows through */
  .site-header {
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    position: sticky;
    top: 0;
    z-index: 10;
    backdrop-filter: blur(12px) saturate(1.1);
    -webkit-backdrop-filter: blur(12px) saturate(1.1);
    background-color: rgba(255, 255, 255, 0.18);
  }
  
  .site-header__inner {
    display: flex;
  align-items: flex-end;
    justify-content: space-between;
    gap: 2rem;
  padding-top: 1.9rem;
  padding-bottom: 1.9rem;
  }
  
  .site-header h1 {
    margin-top: 0.15rem;
  }

.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.site-header__brand-mark {
  width: 20px;
  height: 20px;
  border-radius: 5px;
  display: block;
}
  
  .site-nav__link {
    padding: 0.4rem 0.6rem;
  }
  
  /* Sections */
  .section {
    padding-block: 3rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  }
  
  .section-header {
    max-width: 640px;
    margin-bottom: 2rem;
  }
  
  .section-kicker {
    margin-bottom: 0.5rem;
  }
  
  /* Landing layout */
  .section--landing {
    padding-top: 4rem;
    min-height: calc(100vh - 14rem);
    display: flex;
    align-items: center;
  }

  /* Results header — align with site header title, echo landing headline styling */
  .section--results .section-header {
    max-width: none;
    margin-bottom: 32px;
  }

  .landing-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    gap: 4rem;
    align-items: flex-start;
  }
  
.landing-brand {
  margin-bottom: 1rem;
}

.landing-brand__mark {
  width: 48px;
  height: 48px;
  display: block;
}

  .landing-title em {
    font-style: italic;
  }

  /* Keep "visual comfort live?" together on one line */
  .landing-title__line {
    white-space: nowrap;
    display: inline-block;
  }
  
  .landing-layout__secondary {
    /* Sit the excerpt slightly lower than the headline */
    margin-top: 0.65rem;
  }

  .landing-intro {
    max-width: 26rem;
    margin-bottom: 1.2rem;
  }
  
  /* Questionnaire layout */
  .section--questionnaire {
    max-width: 880px;
  }

  /* Step 01 (city) and steps 02–06 (image) live in the same .question-shell */
  .questionnaire-city-view,
  .question-image-view {
    grid-column: 1 / -1;
  }

  .questionnaire-city-view .question-text.questionnaire-city-label {
    margin: 0;
    cursor: text;
  }

  .questionnaire-city-field {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 1.75rem;
  }

  .questionnaire-city-field.options-list {
    flex-wrap: nowrap;
  }

  .questionnaire-city-input {
    display: block;
    width: 100%;
    max-width: 20rem;
    padding: 0.6rem 0.9rem;
    font-size: 1rem;
    font: inherit;
    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: 8px;
    margin-bottom: 0;
    background: rgba(255, 255, 255, 0.12);
    color: var(--ink);
  }

  .questionnaire-city-input::placeholder {
    color: var(--ink-soft);
    opacity: 0.8;
  }

  .questionnaire-city-input:focus {
    outline: 2px solid currentColor;
    outline-offset: 2px;
  }

  .questionnaire-city-error {
    font-size: 0.85rem;
    color: #f88;
    margin: 0;
  }

  .questionnaire-no-data {
    font-size: 0.95rem;
    max-width: 32rem;
    margin: 0;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.06);
    border-radius: 8px;
  }

  .question-shell .question-footer .question-footer__trail {
    margin-left: auto;
  }

  /* Climate zone popup */
  .climate-popup {
    position: fixed;
    inset: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    /* Card centered on viewport midline (~50vh) with safe edge padding */
    padding: 1.5rem;
    min-height: 100dvh;
    box-sizing: border-box;
  }

  .climate-popup[hidden] {
    display: none;
  }

  .climate-popup__backdrop {
    position: absolute;
    inset: 0;
  background: rgba(10, 16, 20, 0.26);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
  }

  .climate-popup__card {
    position: relative;
    width: 100%;
    max-width: min(26rem, calc(100vw - 2rem));
    min-height: 0;
    padding: 2.15rem 2.4rem 1.5rem 1.85rem;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    backdrop-filter: blur(18px) saturate(1.06);
    -webkit-backdrop-filter: blur(18px) saturate(1.06);
    background:
      radial-gradient(120% 85% at 0% 0%, rgba(128, 191, 255, 0.2), transparent 55%),
      radial-gradient(100% 80% at 100% 12%, rgba(200, 149, 255, 0.16), transparent 58%),
      rgba(255, 255, 255, 0.12);
    border-radius: 22px;
    border: 1px solid rgba(255, 255, 255, 0.26);
    box-shadow:
      0 24px 52px rgba(8, 18, 26, 0.24),
      inset 0 1px 0 rgba(255, 255, 255, 0.28);
  }

  .climate-popup__brand {
    display: flex;
    justify-content: center;
    margin: 0 0 1.05rem;
  }

  /* No solid “buffer” — logo sits on glass; drop-shadow for separation */
  .climate-popup__brand-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    margin: 0;
    width: auto;
    height: auto;
    border-radius: 0;
    background: transparent;
    border: none;
    box-shadow: none;
  }

  .climate-popup__brand-chip img {
    width: 2.5rem;
    height: 2.5rem;
    display: block;
    filter: drop-shadow(0 2px 14px rgba(0, 0, 0, 0.32));
  }

  .climate-popup__body {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.3rem;
    text-align: center;
  }

  .climate-popup__title {
    flex-shrink: 0;
    margin: 0;
  }

  .climate-popup__code {
    margin-top: 0.15rem;
  }

  .climate-popup__code[hidden] {
    display: none;
  }

  .climate-popup__meta {
    margin: 0.45rem auto 0;
    flex: 0 1 auto;
    max-width: 42ch;
  }

  .climate-popup__actions {
    margin-top: 1.4rem;
    padding-top: 1.15rem;
    border-top: 1px solid rgba(255, 255, 255, 0.22);
    display: flex;
    justify-content: center;
    flex-shrink: 0;
  }

  .climate-popup__actions .button {
    width: auto;
    min-width: min(15.5rem, 100%);
    margin: 0;
    border-radius: 999px;
  }

@media (max-width: 640px) {
  .climate-popup__card {
    border-radius: 20px;
    padding: 1.75rem 1.35rem 1.35rem 1.25rem;
    max-width: calc(100vw - 1.75rem);
  }

  .climate-popup__brand-chip img {
    width: 2.25rem;
    height: 2.25rem;
  }

  .climate-popup__actions {
    margin-top: 1.15rem;
    padding-top: 1rem;
  }
}

  .question-shell {
    border-top: 1px solid rgba(255, 255, 255, 0.18);
    padding-top: 1.25rem;
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1.2fr);
    gap: 1.75rem;
    align-items: flex-start;
  }
  
  .question-meta {
    font-size: 0.8rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    opacity: 0.6;
  }

.question-progress-bar {
  grid-column: 1 / -1;
  display: flex;
  gap: 0.35rem;
  margin-top: 0.2rem;
  margin-bottom: 0.25rem;
}

.question-progress-bar__dot {
  flex: 1;
  height: 3px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.18);
  transition: background 0.35s ease, transform 0.35s ease;
  max-width: 72px;
}

.question-progress-bar__dot--active {
  background: rgba(255, 255, 255, 0.92);
  transform: scaleY(1.6);
}

.question-progress-bar__dot--done {
  background: rgba(255, 255, 255, 0.55);
}
  
  .question-body {
    grid-column: 1 / -1;
    margin-top: 1rem;
  }

  .question-refine-view {
    grid-column: 1 / -1;
  }

  /* Refine step: space under prompt, grid height handled in components.css */
  .question-refine-view:not([hidden]) .question-body {
    margin-top: 0.35rem;
    margin-bottom: clamp(0.5rem, 1.4vh, 0.95rem);
  }

  .question-refine-view:not([hidden]) .question-text {
    margin-bottom: 0;
  }

  .question-shell:has(.question-refine-view:not([hidden])) .question-footer {
    margin-top: 0.45rem;
  }
  
  .question-text {
    max-width: 40rem;
  }
  
  .options-list {
    grid-column: 1 / -1;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 1rem;
    justify-content: flex-start;
  }

  /* Exactly 3 image options per question — equal width in a row */
  .question-image-view .options-list .option-image {
    flex: 1 1 0;
    min-width: 0;
    max-width: none;
  }

  @media (min-width: 640px) {
    .question-image-view .options-list .option-image {
      flex: 1 1 calc((100% - 2rem) / 3);
      max-width: calc((100% - 2rem) / 3);
    }
  }
  
  .question-footer {
    grid-column: 1 / -1;
    margin-top: 1.25rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
  }

  /* Köppen lookup: buffer GIF beside Continue (city step) */
  .question-footer__trail {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    justify-content: flex-end;
    gap: 0.5rem 0.75rem;
    min-width: 0;
  }

  .koppen-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    min-height: 0;
  }

  .koppen-loading[hidden] {
    display: none !important;
  }

  .koppen-loading__gif {
    display: block;
    max-height: clamp(40px, 9vw, 56px);
    max-width: min(88px, 22vw);
    width: auto;
    height: auto;
    object-fit: contain;
  }
  
  /* Processing */
  .section--processing {
    text-align: left;
    max-width: 720px;
  }
  
  .processing-shell {
    border-top: 1px solid rgba(255, 255, 255, 0.18);
    padding-top: 1.5rem;
  }
  
  .processing-indicator {
    margin-top: 1.75rem;
    width: 72px;
    height: 72px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.18);
  }
  
  /* Results layout (stub) */
  .results-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    gap: 3rem;
    align-items: flex-start;
  }
  
  /* 4:3 aspect ratio; wide cap so the editorial field can use the main column */
  .results-graph-placeholder {
    position: relative;
    width: 100%;
    aspect-ratio: 4 / 3;
    max-width: min(100%, 1320px);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.14);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .results-graph-placeholder canvas {
    width: 100% !important;
    height: 100% !important;
    object-fit: contain;
    display: block;
  }
  
  .results-profile__text {
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
  }

  .results-palette__swatches {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    width: 100%;
  }

  /* Make the expected environmental palette visually secondary:
     slightly narrower so its swatches render smaller than the user's palette. */
  .results-palette.results-palette--environment .results-palette__swatches {
    max-width: 72%;
    margin-inline: auto;
  }
  
  /* Learn more */
  .section--learn-more .learn-more-body {
    max-width: 620px;
  }

.method-editorial {
  max-width: 980px;
  display: block;
}

.method-editorial__intro {
  margin-bottom: 1.6rem;
  max-width: 68ch;
}

.method-step {
  position: relative;
  padding: 0;
  border-left: 1px solid rgba(255, 255, 255, 0.22);
  margin-bottom: 0.85rem;
}

.method-step__summary {
  list-style: none;
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  padding: 0.55rem 0 0.55rem 1.1rem;
  cursor: pointer;
}

.method-step__kicker {
  min-width: 2.2rem;
  display: inline-block;
}

.method-step__summary::-webkit-details-marker {
  display: none;
}

.method-step__summary::after {
  content: "+";
  margin-left: auto;
  opacity: 0.7;
  font-size: 1rem;
}

.method-step[open] .method-step__summary::after {
  content: "−";
}

.method-step__content {
  padding: 0 0 0.55rem 4rem;
}

.method-step__kicker {
  margin: 0 0 0.35rem;
}

.method-step__title {
  margin: 0 0 0.45rem;
}

.method-step__body {
  margin: 0;
  max-width: 66ch;
}

/* Metadata step: compact tag reference cards */
.method-meta-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.65rem;
  margin-top: 1.1rem;
  max-width: 52rem;
}

.method-meta-card {
  margin: 0;
  padding: 0.7rem 0.8rem 0.75rem;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.06);
  box-sizing: border-box;
  min-width: 0;
}

.method-meta-card__tags {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.method-meta-card__tags li {
  margin: 0;
  padding: 0;
}

.method-meta-card__tag {
  display: inline-block;
}

@media (max-width: 720px) {
  .method-meta-cards {
    grid-template-columns: 1fr;
  }
}

.method-snapshot {
  margin-top: 0.8rem;
}

.method-snapshot__label {
  margin: 0 0 0.4rem;
  font-family: var(--font-h3);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  opacity: 0.72;
}

.method-snapshot__figures {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.5rem;
  margin: 0 0 0.55rem;
}

.method-snapshot__figure figcaption {
  margin-top: 0.3rem;
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.72;
}

.method-snapshot__figure {
  margin: 0;
}

.method-snapshot__image {
  width: 100%;
  display: block;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.05);
  height: auto;
}

.method-snapshot__figures--nature .method-snapshot__figure {
  aspect-ratio: 4 / 5;
  overflow: hidden;
}

.method-snapshot__figures--nature .method-snapshot__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.method-snapshot__swatches {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.5rem;
}

.method-snapshot__swatches span {
  display: block;
  border-radius: 12px;
  min-height: 70px;
  padding: 0.4rem 0.45rem;
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.method-snapshot__swatches i {
  position: absolute;
  left: 0.45rem;
  bottom: 0.35rem;
  font-style: normal;
  font-size: 0.62rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.88);
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
}

/* Step 05 — three-set Venn (climate color fields) */
.method-venn {
  margin: 1.1rem 0 0;
  max-width: 52rem;
  overflow: visible;
}

.method-venn__frame {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.95fr);
  gap: 1rem 1.25rem;
  align-items: center;
  padding: 1rem 1.1rem 1.05rem;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.04);
  box-sizing: border-box;
  overflow: visible;
}

.method-venn__svg-wrap {
  overflow: visible;
  padding: 0.35rem 0.25rem 0.5rem;
  min-width: 0;
}

.method-venn__svg {
  width: 100%;
  max-width: 100%;
  height: auto;
  display: block;
  margin-inline: auto;
  overflow: visible;
}

.method-venn__you {
  fill: var(--ink);
  stroke: color-mix(in srgb, var(--mesh-vignette) 55%, transparent);
  stroke-width: 1.5;
  filter: drop-shadow(0 1px 4px rgba(0, 0, 0, 0.45));
}

.method-venn__legend {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.method-venn__legend-item {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.35rem 0.5rem;
  padding: 0.35rem 0 0.35rem 0.55rem;
  border-left: 3px solid rgba(255, 255, 255, 0.25);
}

.method-venn__legend-item--tropical {
  border-left-color: color-mix(in srgb, var(--mesh-ice-dim) 88%, transparent);
}

.method-venn__legend-item--arid {
  border-left-color: color-mix(in srgb, var(--tropical-3) 82%, transparent);
}

.method-venn__legend-item--polar {
  border-left-color: color-mix(in srgb, var(--mesh-glow-a) 92%, transparent);
}

.method-venn__legend-item--you {
  border-left-color: color-mix(in srgb, var(--ink) 72%, transparent);
}

.method-venn__you-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--ink);
  border: 1px solid color-mix(in srgb, var(--mesh-vignette) 50%, transparent);
  flex-shrink: 0;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.35);
}

@media (max-width: 720px) {
  .method-venn__frame {
    grid-template-columns: 1fr;
  }
}

.method-table-wrap {
  width: 100%;
  overflow-x: auto;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.05);
}

.method-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 620px;
}

.method-table th,
.method-table td {
  text-align: left;
  padding: 0.55rem 0.65rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  font-size: 0.78rem;
  line-height: 1.35;
}

.method-table th {
  font-family: var(--font-h3);
  font-size: 0.64rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.8;
  background: rgba(255, 255, 255, 0.05);
}

.method-table tbody tr:last-child td {
  border-bottom: 0;
}

.method-scatter {
  position: relative;
  height: 190px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background:
    linear-gradient(to top, rgba(255, 255, 255, 0.08) 1px, transparent 1px) 0 0 / 100% 24%,
    linear-gradient(to right, rgba(255, 255, 255, 0.08) 1px, transparent 1px) 0 0 / 20% 100%,
    rgba(255, 255, 255, 0.04);
}

.method-scatter__dot {
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(255, 255, 255, 0.42);
}

.method-scatter__dot--nature {
  background: #7fb091;
}

.method-scatter__dot--ads {
  background: #d7a772;
}

.method-scatter__dot--you {
  background: #7ab8c9;
  width: 12px;
  height: 12px;
}

.method-matrix {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  grid-template-rows: repeat(3, 52px);
  gap: 0.45rem;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.04);
  padding: 0.55rem;
}

.method-matrix__dot {
  width: calc(var(--s, 8) * 1px);
  height: calc(var(--s, 8) * 1px);
  border-radius: 999px;
  background: rgba(216, 200, 184, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.38);
  grid-column: var(--x, 1);
  grid-row: var(--y, 1);
  align-self: center;
  justify-self: center;
}

@media (max-width: 700px) {
  .method-snapshot__figures {
    grid-template-columns: 1fr;
  }

  .method-snapshot__swatches {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
  
  /* Footer */
  .site-footer {
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    padding: 2.5rem 1.75rem 3.5rem;
    margin-top: auto;
  }
  
  .site-footer__detail {
    display: inline-block;
    margin-left: 0.5rem;
  }
  
  /* Visibility helpers */
  .section--hidden {
    display: none;
  }
  
  /* Responsiveness */
  @media (max-width: 768px) {
    .landing-layout,
    .question-shell,
    .results-layout {
      grid-template-columns: minmax(0, 1fr);
      gap: 1.75rem;
    }
  
    .site-header__inner {
      flex-direction: column;
      align-items: flex-start;
    }
  
    .section,
    .site-header__inner,
    .site-footer {
      padding-inline: 1.25rem;
    }
  }