*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

    :root {
      --bg:              #F9F8F5;       /* warm cream (matches youex.de) */
      --surface:         #FFFFFF;       /* white card */
      --surface-2:       #F4F2EF;       /* slightly darker cream */
      --border:          #E5E5E5;
      --border-hover:    #C9C7C2;
      --text:            #111111;
      --text-muted:      #6B6B6B;
      --text-subtle:     #B5B3AE;
      --accent:          #F74600;       /* vivid orange — youex brand */
      --accent-dim:      rgba(247,70,0,.08);
      --accent-border:   rgba(247,70,0,.45);
      --cta:             #0C0C0C;       /* primary button — near-black (youex CTA) */
      --cta-hover:       #2A2A2A;
      --cta-glow:        rgba(247,70,0,.30); /* warm glow under CTA — same hue */
      --error:           #B91C1C;       /* deep red — kept distinct from brand orange */
      --error-dim:       rgba(185,28,28,.08);
      --desirability:    #987DA5;       /* lavender */
      --desirability-dim:rgba(152,125,165,.10);
      --viability:       #6F9954;       /* sage */
      --viability-dim:   rgba(111,153,84,.10);
      --feasibility:     #2867B2;       /* deep blue */
      --feasibility-dim: rgba(40,103,178,.10);
      --usability:       #E1A366;       /* warm tan */
      --usability-dim:   rgba(225,163,102,.14);
    }

    html { font-size: 16px; scroll-behavior: smooth; }

    body {
      background: var(--bg);
      color: var(--text);
      font-family: 'Open Sans', system-ui, -apple-system, sans-serif;
      font-weight: 400;
      line-height: 1.65;
      min-height: 100vh;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }

    /* ── Progress bar ── */
    .progress-bar-wrap {
      position: fixed;
      top: 0; left: 0; right: 0;
      height: 2px;
      background: var(--border);
      z-index: 200;
    }
    .progress-bar-fill {
      height: 100%;
      background: var(--accent);
      transition: width .55s cubic-bezier(.4,0,.2,1);
      will-change: width;
    }

    /* ── Layout ── */
    .site-header {
      padding: 2rem 2rem 0;
      max-width: 820px;
      margin: 0 auto;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1.5rem;
      flex-wrap: wrap;
    }
    .site-wordmark {
      font-family: 'Open Sans', sans-serif;
      font-size: .72rem;
      font-weight: 600;
      letter-spacing: .12em;
      text-transform: uppercase;
      color: var(--text-muted);
      text-decoration: none;
    }
    .site-nav {
      display: flex;
      gap: 1.5rem;
      flex-wrap: wrap;
    }
    .site-nav-link {
      font-family: 'Open Sans', sans-serif;
      font-size: .8rem;
      font-weight: 500;
      letter-spacing: .01em;
      color: var(--text-muted);
      text-decoration: none;
      transition: color .2s;
      padding-bottom: .15rem;
      border-bottom: 1px solid transparent;
    }
    .site-nav-link:hover { color: var(--text); }
    .site-nav-link.active {
      color: var(--accent);
      border-bottom-color: var(--accent);
    }
    .main {
      max-width: 820px;
      margin: 0 auto;
      padding: 3.5rem 2rem 7rem;
    }

    /* ── Step panels ── */
    .step-panel {
      display: none;
      opacity: 0;
      transform: translateY(14px);
      transition: opacity .35s ease, transform .35s ease;
    }
    .step-panel.active  { display: block; }
    .step-panel.visible { opacity: 1; transform: translateY(0); }

    .step-indicator {
      font-size: .68rem;
      font-weight: 600;
      letter-spacing: .12em;
      text-transform: uppercase;
      color: var(--text-muted);
      margin-bottom: .75rem;
    }
    .step-title {
      font-family: 'Merriweather', Georgia, serif;
      font-weight: 700;
      font-size: clamp(1.9rem, 5vw, 2.6rem);
      line-height: 1.18;
      letter-spacing: -.01em;
      color: var(--text);
      margin-bottom: .75rem;
    }
    .step-title em { font-style: italic; font-weight: 400; color: var(--accent); }
    .step-subtitle {
      font-size: .95rem;
      color: var(--text-muted);
      margin-bottom: 2.75rem;
      max-width: 560px;
      line-height: 1.6;
    }

    /* ── Form elements ── */
    .field-group { margin-bottom: 2rem; }
    .field-label {
      display: block;
      font-size: .7rem;
      font-weight: 700;
      letter-spacing: .14em;
      text-transform: uppercase;
      color: var(--accent);
      margin-bottom: .65rem;
    }
    .field-input, .field-textarea {
      width: 100%;
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: 12px;
      color: var(--text);
      font-family: 'Open Sans', sans-serif;
      font-size: .95rem;
      font-weight: 400;
      padding: 1rem 1.2rem;
      outline: none;
      transition: border-color .2s, box-shadow .2s;
    }
    .field-textarea { resize: vertical; min-height: 124px; line-height: 1.6; }
    .field-input:focus, .field-textarea:focus {
      border-color: var(--accent-border);
      box-shadow: 0 0 0 3px rgba(247,70,0,.12);
    }
    .field-input::placeholder, .field-textarea::placeholder { color: var(--text-subtle); }
    .field-hint {
      font-size: .82rem;
      color: var(--text-muted);
      margin-top: .55rem;
      font-style: italic;
    }

    /* Inline SVG icons (chevrons in buttons). Sized in em so they scale
       with the surrounding text and inherit colour via currentColor. */
    .icon-chevron {
      width: .85em;
      height: .85em;
      flex-shrink: 0;
      display: inline-block;
      vertical-align: -.05em;
    }

    /* ── Buttons ── */
    .btn-primary {
      display: inline-flex;
      align-items: center;
      gap: .45rem;
      background: var(--cta);
      color: #FFFFFF;
      border: none;
      border-radius: 999px;
      font-family: 'Open Sans', sans-serif;
      font-size: .9rem;
      font-weight: 600;
      letter-spacing: .01em;
      padding: .9rem 1.85rem;
      cursor: pointer;
      transition: background-color .2s, transform .15s, box-shadow .25s;
      text-decoration: none;
      white-space: nowrap;
      /* Subtle warm glow at rest, fuller glow on hover — youex signature. */
      box-shadow: 0 1px 2px rgba(17,17,17,.10), 0 6px 20px var(--cta-glow);
    }
    .btn-primary:hover:not(:disabled) {
      background: var(--cta-hover);
      transform: translateY(-1px);
      box-shadow: 0 2px 4px rgba(17,17,17,.12), 0 10px 28px var(--cta-glow);
    }
    .btn-primary:focus-visible { outline: 2px solid var(--cta); outline-offset: 3px; }
    .btn-primary:disabled { opacity: .42; cursor: not-allowed; transform: none; box-shadow: none; }

    .btn-secondary {
      display: inline-flex;
      align-items: center;
      gap: .45rem;
      background: transparent;
      color: var(--text-muted);
      border: 1px solid var(--border);
      border-radius: 999px;
      font-family: 'Open Sans', sans-serif;
      font-size: .9rem;
      font-weight: 500;
      letter-spacing: .01em;
      padding: .85rem 1.75rem;
      cursor: pointer;
      transition: color .2s, border-color .2s, background-color .2s;
      white-space: nowrap;
    }
    .btn-secondary:hover { color: var(--text); border-color: var(--border-hover); background: var(--surface-2); }
    .btn-secondary:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

    .btn-row {
      display: flex;
      gap: .875rem;
      align-items: center;
      flex-wrap: wrap;
      margin-top: 2.5rem;
    }

    /* ── Loading & errors ── */
    .loading-wrap {
      display: none;
      align-items: center;
      gap: 1rem;
      margin-top: 1.75rem;
      padding: 1.25rem 1.5rem;
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: 16px;
    }
    .loading-wrap.visible { display: flex; }
    .spinner {
      width: 18px; height: 18px;
      border: 2px solid var(--border);
      border-top-color: var(--accent);
      border-radius: 50%;
      animation: spin .75s linear infinite;
      flex-shrink: 0;
    }
    @keyframes spin { to { transform: rotate(360deg); } }
    .loading-text { font-size: .9rem; color: var(--text-muted); }

    .error-box {
      display: none;
      padding: 1.1rem 1.4rem;
      background: var(--error-dim);
      border: 1px solid rgba(185,28,28,.35);
      border-radius: 16px;
      font-size: .9rem;
      color: var(--error);
      margin-top: 1.5rem;
      line-height: 1.55;
    }
    .error-box.visible { display: block; }

    /* ── Privacy notice ── */
    .privacy-note {
      font-size: .8rem;
      color: var(--text-muted);
      margin-top: 1.75rem;
      line-height: 1.7;
      max-width: 560px;
    }
    .privacy-note a { color: var(--accent); text-decoration: none; border-bottom: 1px dotted var(--accent-border); }
    .privacy-note a:hover { opacity: .8; }

    /* ── Turnstile slot ── */
    .turnstile-slot { margin-top: 1.5rem; min-height: 0; }
    .turnstile-slot:empty { display: none; }

    /* ── Step 2 — Review ── */
    .section-label {
      font-size: .7rem;
      font-weight: 700;
      letter-spacing: .14em;
      text-transform: uppercase;
      color: var(--text-muted);
      margin-bottom: 1rem;
    }
    .assumptions-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
      gap: 1rem;
      margin-bottom: 2.5rem;
    }
    .assumption-card {
      padding: 1.3rem 1.4rem;
      border-radius: 16px;
      border: 1px solid;
    }
    .assumption-card.desirability { background: var(--desirability-dim); border-color: rgba(152,125,165,.32); }
    .assumption-card.viability    { background: var(--viability-dim);    border-color: rgba(111,153,84,.32); }
    .assumption-card.feasibility  { background: var(--feasibility-dim);  border-color: rgba(40,103,178,.32); }
    .assumption-card.usability    { background: var(--usability-dim);    border-color: rgba(225,163,102,.40); }
    .assumption-card-cat {
      font-size: .68rem;
      letter-spacing: .14em;
      text-transform: uppercase;
      font-weight: 700;
      margin-bottom: .55rem;
    }
    .assumption-card.desirability .assumption-card-cat { color: var(--desirability); }
    .assumption-card.viability    .assumption-card-cat { color: var(--viability); }
    .assumption-card.feasibility  .assumption-card-cat { color: var(--feasibility); }
    .assumption-card.usability    .assumption-card-cat { color: var(--usability); }
    .assumption-card-text { font-size: .95rem; line-height: 1.6; color: var(--text); }

    .hypotheses-list {
      display: flex;
      flex-direction: column;
      gap: .85rem;
      margin-bottom: 2.5rem;
    }
    .hypothesis-item {
      padding: 1.2rem 1.5rem;
      background: var(--surface);
      border: 1px solid var(--border);
      border-left: 3px solid var(--accent);
      border-radius: 16px;
      font-size: .95rem;
      line-height: 1.65;
      color: var(--text);
      font-family: 'Merriweather', Georgia, serif;
      font-style: italic;
      font-weight: 400;
    }
    /* "H1.", "H2." marker prefixes inside hypothesis-item (used on Step 5
       discovery-context). Upright weight against the italic body for contrast. */
    .hypothesis-marker {
      font-style: normal;
      font-weight: 700;
      color: var(--accent);
      margin-right: .4rem;
    }
    .explanation-callout {
      padding: 1.2rem 1.5rem;
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: 16px;
      font-size: .9rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 2.5rem;
    }
    .explanation-callout::before { content: "— "; color: var(--accent); }

    /* ── Step 3 — Context ── */
    .fields-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 1.5rem;
    }

    /* ── Step 4 — Method grid ── */
    .methods-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(195px, 1fr));
      gap: 1rem;
      margin-bottom: 2.5rem;
    }
    .method-card {
      padding: 1.5rem 1.2rem;
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: 16px;
      cursor: pointer;
      transition: border-color .2s, background .2s, transform .15s, box-shadow .2s;
      text-align: center;
      user-select: none;
    }
    .method-card:hover { border-color: var(--border-hover); transform: translateY(-1px); box-shadow: 0 4px 14px rgba(17,17,17,.04); }
    .method-card:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
    .method-card.selected { border-color: var(--accent); background: var(--accent-dim); box-shadow: 0 0 0 3px rgba(247,70,0,.12); }
    .method-card { position: relative; }
    /* "Recommended" badge added to whichever method-card the recommend
       endpoint picked. Sits on the top-right corner of the card. */
    .method-badge {
      position: absolute;
      top: -.55rem;
      right: -.55rem;
      background: var(--accent);
      color: #FFFFFF;
      font-size: .62rem;
      font-weight: 700;
      letter-spacing: .12em;
      text-transform: uppercase;
      padding: .3rem .7rem;
      border-radius: 999px;
      pointer-events: none;
      box-shadow: 0 4px 14px rgba(247,70,0,.35);
      white-space: nowrap;
    }
    .method-card-icon { font-size: 1.8rem; margin-bottom: .7rem; display: block; }
    .method-card-title {
      font-size: .9rem;
      font-weight: 600;
      color: var(--text);
      margin-bottom: .35rem;
      letter-spacing: 0;
    }
    .method-card-desc { font-size: .8rem; color: var(--text-muted); line-height: 1.55; }

    /* ── Step 5 — Guide ── */
    .guide-head {
      padding-bottom: 1.75rem;
      margin-bottom: 2rem;
      border-bottom: 1px solid var(--border);
    }
    .guide-meta {
      display: flex;
      gap: 2.5rem;
      flex-wrap: wrap;
      margin-top: 1.25rem;
    }
    .guide-meta-item { display: flex; flex-direction: column; gap: .25rem; }
    .guide-meta-label { font-size: .68rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--text-muted); }
    .guide-meta-value { font-size: .95rem; color: var(--text); }

    .accordion {
      border: 1px solid var(--border);
      border-radius: 16px;
      margin-bottom: .85rem;
      overflow: hidden;
      background: var(--surface);
    }
    .accordion-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 1.1rem 1.5rem;
      background: var(--surface);
      cursor: pointer;
      border: none;
      width: 100%;
      text-align: left;
      transition: background .2s;
      font-family: inherit;
    }
    .accordion-header:hover { background: var(--surface-2); }
    .accordion-header:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }
    .accordion-title {
      font-family: 'Merriweather', Georgia, serif;
      font-weight: 700;
      font-size: 1.05rem;
      color: var(--text);
      letter-spacing: -.005em;
    }
    .accordion-chevron {
      color: var(--text-muted);
      font-size: .8rem;
      transition: transform .25s ease;
      flex-shrink: 0;
    }
    .accordion.open .accordion-chevron { transform: rotate(180deg); }
    .accordion-body {
      max-height: 0;
      overflow: hidden;
      transition: max-height .3s ease;
    }
    .accordion.open .accordion-body { max-height: 9999px; }
    .accordion-content {
      padding: 1.4rem 1.6rem;
      border-top: 1px solid var(--border);
      background: var(--surface);
    }
    .accordion-item {
      display: flex;
      gap: 1rem;
      padding-bottom: .9rem;
      margin-bottom: .9rem;
      border-bottom: 1px solid var(--border);
      font-size: .95rem;
      line-height: 1.7;
      color: var(--text);
    }
    .accordion-item:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
    .accordion-item-num {
      font-size: .75rem;
      color: var(--accent);
      font-weight: 700;
      min-width: 1.65rem;
      padding-top: .2rem;
      flex-shrink: 0;
      letter-spacing: .04em;
    }
    /* Items that already carry their own label (Q1:, Opener (variant 1) -, ...).
       Drop the 01/02 prefix to avoid double-numbering, but keep the same left
       indent so adjacent rows line up. */
    .accordion-item.accordion-item--self-labelled { padding-left: 0; }
    .accordion-item.accordion-item--self-labelled > span { padding-left: 0; }
    /* Probe items (model emits with "↳ " prefix) — nested under their question. */
    .accordion-probe {
      display: flex;
      gap: 1rem;
      padding: .15rem 0 .65rem 2.4rem;
      margin-bottom: .2rem;
      font-size: .9rem;
      line-height: 1.65;
      color: var(--text-muted);
      border-bottom: none;
    }
    .accordion-probe-arrow {
      color: var(--accent);
      flex-shrink: 0;
      font-weight: 700;
    }

    /* Hypothesis Mapping table (Step 5, after the guide sections) */
    .hypothesis-mapping {
      margin-top: 2.5rem;
      margin-bottom: 2.5rem;
    }
    .hypothesis-mapping > .section-label { margin-bottom: 1rem; }
    .hyp-table-wrap {
      border: 1px solid var(--border);
      border-radius: 16px;
      overflow: hidden;
      background: var(--surface);
    }
    .hyp-table { width: 100%; border-collapse: collapse; }
    .hyp-table th, .hyp-table td {
      padding: .9rem 1.2rem;
      text-align: left;
      font-size: .9rem;
      vertical-align: top;
      border-bottom: 1px solid var(--border);
      line-height: 1.55;
    }
    .hyp-table thead th {
      background: var(--surface-2);
      font-weight: 700;
      font-size: .7rem;
      letter-spacing: .14em;
      text-transform: uppercase;
      color: var(--text-muted);
    }
    .hyp-table tbody tr:last-child td { border-bottom: none; }
    .hyp-table .hyp-id {
      font-weight: 700;
      color: var(--accent);
      white-space: nowrap;
      width: 1%;
    }
    .hyp-table .hyp-questions {
      color: var(--text-muted);
      font-size: .85rem;
      width: 18%;
    }
    @media (max-width: 640px) {
      .hyp-table thead { display: none; }
      .hyp-table tr { display: block; padding: .6rem 0; border-bottom: 1px solid var(--border); }
      .hyp-table tr:last-child { border-bottom: none; }
      .hyp-table td { display: block; border: none; padding: .25rem 1.2rem; }
      .hyp-table .hyp-questions::before { content: "Questions: "; font-weight: 700; color: var(--text); }
      .hyp-table .hyp-listen::before { content: "Listen for: "; font-weight: 700; color: var(--text); display: block; margin-bottom: .15rem; font-size: .75rem; letter-spacing: .12em; text-transform: uppercase; }
    }

    /* Discovery context panel on Step 5 (collapsible) */
    .discovery-context {
      border: 1px solid var(--border);
      background: var(--surface);
      border-radius: 16px;
      padding: 1.25rem 1.5rem;
      margin-bottom: 2rem;
    }
    .discovery-context-summary {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1rem;
      cursor: pointer;
      list-style: none;
      user-select: none;
    }
    .discovery-context-summary::-webkit-details-marker { display: none; }
    .discovery-context-chevron {
      color: var(--text-muted);
      font-size: .85rem;
      transition: transform .25s ease;
    }
    .discovery-context[open] .discovery-context-chevron { transform: rotate(180deg); }
    .discovery-context-body { padding-top: 1.25rem; }
    .discovery-context-body .assumptions-grid { margin-bottom: 1.5rem; }
    .discovery-context-body .hypotheses-list { margin-bottom: 0; }

    .researcher-notes {
      padding: 1.5rem 1.75rem;
      background: var(--accent-dim);
      border: 1px solid var(--accent-border);
      border-radius: 16px;
      margin-top: 2rem;
      margin-bottom: 2.5rem;
    }
    .researcher-notes-label {
      font-size: .7rem;
      letter-spacing: .14em;
      text-transform: uppercase;
      color: var(--accent);
      font-weight: 700;
      margin-bottom: .7rem;
    }
    .researcher-notes-text { font-size: .95rem; line-height: 1.75; color: var(--text); }
    .researcher-notes-list {
      margin: 0;
      padding-left: 1.5rem;
      font-size: .95rem;
      line-height: 1.75;
      color: var(--text);
    }
    .researcher-notes-list li { margin-bottom: .55rem; }
    .researcher-notes-list li:last-child { margin-bottom: 0; }
    .researcher-notes-list li::marker { color: var(--accent); font-weight: 700; }

    .field-formula {
      font-family: 'Open Sans', sans-serif;
      font-size: .85rem;
      color: var(--text-muted);
      background: var(--surface-2);
      border: 1px solid var(--border);
      border-left: 3px solid var(--accent-border);
      border-radius: 8px;
      padding: .7rem 1rem;
      margin-bottom: .75rem;
      line-height: 1.6;
    }
    .field-formula em { color: var(--accent); font-style: normal; font-weight: 600; }

    /* ── Tooltips ──
       Generic [data-tooltip] pattern. Used on the four category names in
       Step 1 to surface Teresa Torres' definition on hover/focus. The dotted
       under-border is the visual cue that the term is interactive. */
    [data-tooltip] {
      position: relative;
      cursor: help;
      border-bottom: 1px dotted var(--accent-border);
    }
    [data-tooltip]::before {
      content: attr(data-tooltip);
      position: absolute;
      bottom: calc(100% + .55rem);
      left: 50%;
      transform: translateX(-50%) translateY(4px);
      background: #FFFFFF;
      color: var(--text);
      font-family: 'Open Sans', sans-serif;
      font-size: .82rem;
      font-weight: 400;
      font-style: normal;
      line-height: 1.55;
      letter-spacing: 0;
      padding: .7rem .95rem;
      border-radius: 12px;
      border: 1px solid var(--border);
      box-shadow: 0 8px 24px rgba(17,17,17,.10);
      width: max-content;
      max-width: 280px;
      text-align: left;
      white-space: normal;
      opacity: 0;
      pointer-events: none;
      transition: opacity .15s ease, transform .15s ease;
      z-index: 100;
    }
    [data-tooltip]:hover::before,
    [data-tooltip]:focus-visible::before {
      opacity: 1;
      transform: translateX(-50%) translateY(0);
    }

    /* ── Insights page ── */
    .insight-headline {
      font-family: 'Merriweather', Georgia, serif;
      font-weight: 700;
      font-size: clamp(1.4rem, 3.6vw, 1.85rem);
      line-height: 1.25;
      color: var(--text);
      margin-bottom: .75rem;
      letter-spacing: -.005em;
    }
    .insight-headline-meta {
      display: flex;
      align-items: center;
      gap: .8rem;
      flex-wrap: wrap;
      font-size: .78rem;
      color: var(--text-muted);
      margin-bottom: 2rem;
    }
    .insight-char-count {
      font-family: 'Open Sans', sans-serif;
      font-weight: 500;
      letter-spacing: .02em;
    }
    .insight-char-count.over { color: var(--error); font-weight: 700; }
    .insight-links-to {
      padding: .9rem 1.2rem;
      background: var(--accent-dim);
      border: 1px solid var(--accent-border);
      border-radius: 12px;
      font-size: .9rem;
      color: var(--text);
      line-height: 1.6;
      margin-bottom: 1.75rem;
    }
    .insight-links-to-label {
      font-size: .65rem;
      letter-spacing: .14em;
      text-transform: uppercase;
      color: var(--accent);
      font-weight: 700;
      display: block;
      margin-bottom: .35rem;
    }
    .insight-section {
      margin-bottom: 1.5rem;
    }
    .insight-section:last-of-type { margin-bottom: 0; }
    .insight-section-label {
      font-size: .68rem;
      font-weight: 700;
      letter-spacing: .14em;
      text-transform: uppercase;
      color: var(--text-muted);
      margin-bottom: .5rem;
    }
    .insight-section-body {
      font-size: 1rem;
      line-height: 1.75;
      color: var(--text);
    }
    .insight-card {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: 16px;
      padding: 1.75rem 2rem;
      margin-bottom: 2rem;
    }
    @media (max-width: 640px) {
      .insight-card { padding: 1.4rem 1.4rem; }
    }
    .copy-btn-row {
      display: flex;
      gap: .75rem;
      flex-wrap: wrap;
      margin-top: 1.5rem;
    }
    .field-counter {
      font-family: 'Open Sans', sans-serif;
      font-size: .72rem;
      color: var(--text-muted);
      margin-top: .35rem;
      text-align: right;
    }

    /* ── Print ── */
    @media print {
      .progress-bar-wrap, .site-header, .step-indicator,
      .btn-row, .field-hint, .error-box, .loading-wrap,
      .privacy-note, .turnstile-slot { display: none !important; }
      body { background: #fff; }
      .accordion-body { max-height: none !important; }
      .accordion, .method-card, .hypothesis-item, .explanation-callout, .loading-wrap { box-shadow: none !important; }
    }

    /* ── Responsive ── */
    @media (max-width: 768px) {
      .main { padding: 2.25rem 1.25rem 5rem; }
      .fields-row { grid-template-columns: 1fr; }
      .methods-grid { grid-template-columns: repeat(2, 1fr); }
      .assumptions-grid { grid-template-columns: 1fr; }
    }
    @media (max-width: 440px) {
      .methods-grid { grid-template-columns: 1fr; }
      .btn-row { flex-direction: column; align-items: stretch; }
      .btn-primary, .btn-secondary { justify-content: center; }
      .guide-meta { gap: 1.5rem; }
    }