:root {
  --canvas: #f5f3ef;
  --paper: #fffefd;
  --ink: #151515;
  --ink-soft: #5e5b55;
  --moss: #586955;
  --clay: #a84c35;
  --clay-dark: #752c1c;
  --flax: #d7c7a8;
  --line: #dcd9d2;
  --error: #9a3027;
  --space-1: 0.5rem;
  --space-2: 0.9rem;
  --space-3: 1.5rem;
  --space-4: 2.75rem;
  --space-5: 5.5rem;
  --radius: 0;
  --font-display: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  --font-body: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { background: var(--canvas); color: var(--ink); font-family: var(--font-body); line-height: 1.55; margin: 0; }
button, input { font: inherit; }
button { background: var(--ink); border: 1px solid var(--ink); border-radius: var(--radius); color: var(--paper); cursor: pointer; font-size: 0.72rem; font-weight: 800; letter-spacing: 0.1em; padding: 1rem 1.2rem; text-transform: uppercase; transition: background-color 140ms ease, color 140ms ease; }
button:hover, button:focus-visible { background: var(--clay); border-color: var(--clay); }
button:focus-visible, input:focus-visible, a:focus-visible { outline: 3px solid var(--clay); outline-offset: 3px; }
button:disabled, input:disabled { cursor: wait; opacity: 0.5; }

.site-shell { margin: 0 auto; max-width: 92rem; padding: var(--space-4) clamp(1.25rem, 4vw, 4.5rem) var(--space-5); }
.masthead { border-bottom: 1px solid var(--line); display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(16rem, 0.7fr); gap: var(--space-4); margin-bottom: var(--space-4); padding: clamp(2.5rem, 7vw, 7rem) 0 var(--space-4); }
.masthead .eyebrow { align-self: start; grid-column: 1 / -1; }
.masthead h1 { max-width: 8ch; }
.intro { align-self: end; color: var(--ink-soft); font-size: clamp(1rem, 1.6vw, 1.22rem); line-height: 1.45; margin: 0; max-width: 25rem; }

.eyebrow, .section-kicker, .brand, .verdict-label { color: var(--moss); font-size: 0.68rem; font-weight: 800; letter-spacing: 0.13em; margin: 0 0 var(--space-1); text-transform: uppercase; }
h1, h2, h3, p { margin-top: 0; }
h1, h2 { font-family: var(--font-display); font-weight: 800; line-height: 0.9; }
h1 { font-size: clamp(4rem, 10.5vw, 9.5rem); letter-spacing: -0.085em; margin-bottom: 0; text-transform: uppercase; }
h2 { font-size: clamp(2rem, 4vw, 4.25rem); letter-spacing: -0.065em; }

.material-story { align-items: stretch; background: var(--paper); display: grid; grid-template-columns: minmax(15rem, 0.75fr) minmax(0, 1.25fr); margin: 0 0 var(--space-5); }
.material-story figcaption { align-self: center; padding: clamp(1.5rem, 4vw, 4rem); }
.material-story h2 { font-size: clamp(2.15rem, 3.7vw, 4.25rem); margin-bottom: var(--space-2); }
.material-story p:last-child { color: var(--ink-soft); margin-bottom: 0; max-width: 25rem; }
.material-story img { display: block; height: 100%; min-height: 22rem; object-fit: cover; width: 100%; }

.check-panel, .preview-panel, .assessment-card, .state-card { background: var(--paper); border: 1px solid var(--line); }
.check-panel { display: grid; gap: var(--space-4); grid-template-columns: minmax(0, 1fr) minmax(20rem, 0.8fr); margin: 0 auto; max-width: 76rem; padding: clamp(1.5rem, 4vw, 4rem); }
.check-panel p, .preview-panel p { color: var(--ink-soft); }
.check-panel h2 { margin-bottom: var(--space-2); }
.product-form { align-self: end; }
.product-form label { display: block; font-size: 0.7rem; font-weight: 800; letter-spacing: 0.1em; margin-bottom: var(--space-1); text-transform: uppercase; }
.form-row { display: flex; gap: var(--space-1); }
.form-row input { background: #faf9f6; border: 1px solid var(--line); border-radius: var(--radius); color: var(--ink); flex: 1; min-width: 0; padding: 1rem; }
.form-row input::placeholder { color: #8a8780; opacity: 1; }

.status-region { margin: 0 auto; max-width: 76rem; min-height: 4rem; padding: var(--space-2) 0; }
#status-line { color: var(--moss); font-size: 0.82rem; font-weight: 700; margin-bottom: 0; }
.result-region { margin: 0 auto var(--space-4); max-width: 76rem; }
.assessment-card { padding: clamp(1.5rem, 4vw, 4rem); }
.assessment-card:focus { outline: 3px solid var(--clay); outline-offset: 0.4rem; }
.assessment-top { align-items: start; border-bottom: 1px solid var(--line); display: flex; gap: var(--space-3); justify-content: space-between; margin-bottom: var(--space-3); padding-bottom: var(--space-3); }
.product-title { font-size: clamp(2rem, 5vw, 5.2rem); margin-bottom: var(--space-1); overflow-wrap: anywhere; }
.price { color: var(--ink-soft); margin-bottom: 0; }
.verdict { border-left: 1px solid var(--line); min-width: 11rem; padding-left: var(--space-3); text-align: right; }
.recommendation { color: var(--moss); display: block; font-size: 2rem; font-weight: 800; letter-spacing: -0.06em; }
.score { color: var(--ink-soft); display: block; font-size: 0.85rem; }
.fact-group { border-top: 1px solid var(--line); margin-top: var(--space-2); padding-top: var(--space-2); }
.fact-title { color: var(--moss); font-size: 0.7rem; letter-spacing: 0.12em; margin-bottom: var(--space-1); text-transform: uppercase; }
.fact-group ul { margin: 0; padding-left: 1.15rem; }
.fact-item { margin-bottom: 0.35rem; }
.score-guide { background: #eef0ea; border-left: 3px solid var(--moss); color: var(--ink-soft); font-size: 0.82rem; margin: 0 0 var(--space-3); padding: var(--space-2); }
.score-proof-title { color: var(--ink); display: block; font-size: 0.72rem; letter-spacing: 0.08em; margin-top: var(--space-2); text-transform: uppercase; }
.score-guide ul { margin: var(--space-1) 0; padding-left: 1.1rem; }
.score-proof-item { margin-bottom: 0.2rem; }
.score-sources, .source-link { color: var(--clay-dark); font-weight: 800; }
.transparency-note { background: #f4ecdf; border-left: 3px solid var(--flax); margin: var(--space-3) 0; padding: var(--space-2); }
.state-card { color: var(--ink-soft); font-size: 1.1rem; padding: var(--space-4); }
.error-state { border-color: rgba(154, 48, 39, 0.5); color: var(--error); }
.empty-state { color: var(--ink-soft); }
.busy-state { border-style: dashed; }
.method-page { margin: 0 auto; max-width: 66rem; padding: clamp(2rem, 7vw, 7rem) clamp(1.25rem, 4vw, 4.5rem); }
.method-page > h1 { font-size: clamp(3.25rem, 8vw, 7rem); max-width: 12ch; }
.method-back { color: var(--clay-dark); display: inline-block; font-size: 0.8rem; font-weight: 800; margin-bottom: var(--space-5); }
.method-intro { color: var(--ink-soft); font-size: clamp(1.15rem, 2vw, 1.5rem); line-height: 1.45; max-width: 42rem; }
.method-section { border-top: 1px solid var(--line); margin-top: var(--space-4); padding-top: var(--space-3); }
.method-section h2 { font-size: clamp(1.8rem, 4vw, 3.5rem); margin-bottom: var(--space-3); }
.method-rules { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.method-rules p { border: 1px solid var(--line); margin: -1px 0 0 -1px; min-height: 8rem; padding: var(--space-2); }
.method-rules strong { color: var(--moss); display: block; font-size: 1.75rem; letter-spacing: -0.06em; }
.method-rules span { display: block; margin-top: var(--space-1); }
.method-note { color: var(--ink-soft); margin: var(--space-3) 0 0; max-width: 48rem; }
.method-sources { margin: 0; padding-left: 1.15rem; }
.method-sources li { margin-bottom: var(--space-2); }
.method-sources a { color: var(--clay-dark); font-weight: 800; }

@media (max-width: 42rem) {
  .site-shell { padding: var(--space-3) var(--space-2) var(--space-4); }
  .masthead, .material-story, .check-panel { grid-template-columns: 1fr; }
  .masthead { gap: var(--space-3); padding-top: var(--space-4); }
  .masthead .eyebrow { grid-column: auto; }
  h1 { font-size: clamp(3.5rem, 19vw, 5.5rem); }
  .material-story img { min-height: 11rem; }
  .form-row, .assessment-top { align-items: stretch; flex-direction: column; }
  .form-row button { width: 100%; }
  .product-title { font-size: clamp(2.25rem, 12vw, 4rem); }
  .verdict { border-left: 0; border-top: 1px solid var(--line); padding: var(--space-2) 0 0; text-align: left; }
  .method-rules { grid-template-columns: 1fr; }
}