:root {
  --bg: #0a0a0a;
  --bg-elev: #141413;
  --ink: #f5f0e6;
  --ink-dim: #807a6f;
  --ink-faint: #4a463f;
  --rule: #28251f;
  --rule-strong: #3a352c;
  --accent: #ffae00;
  --pass: #8aaa6e;
  --watch: #ffae00;
  --fail: #d63a2f;

  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --display: "Anton", "Arial Narrow", sans-serif;
}

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

html, body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 400;
  line-height: 1.5;
  font-feature-settings: "tnum" 1, "cv01" 1;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--ink); text-decoration: underline; text-decoration-color: var(--accent); text-underline-offset: 3px; }
a:hover { color: var(--accent); }

::selection { background: var(--accent); color: var(--bg); }

/* ============================================================
   Grid background - faint scope-style grid
   ============================================================ */
.grid-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(rgba(255, 174, 0, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 174, 0, 0.025) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at 50% 30%, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 30%, black 30%, transparent 80%);
}

/* ============================================================
   Meta strips (top + bottom)
   ============================================================ */
.meta-strip,
.meta-foot {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.85rem 1.5rem;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-dim);
  border-bottom: 1px solid var(--rule);
}
.meta-foot {
  border-bottom: none;
  border-top: 1px solid var(--rule);
  margin-top: 6rem;
}
.meta-strip__left { color: var(--ink); }
.meta-strip__center { font-feature-settings: "tnum" 1; }
.meta-strip__right { color: var(--accent); }

/* ============================================================
   Layout
   ============================================================ */
main {
  position: relative;
  z-index: 2;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ============================================================
   Hero
   ============================================================ */
.hero {
  padding: 7rem 0 4rem;
  border-bottom: 1px solid var(--rule);
}
.hero__h {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(3.5rem, 10vw, 8.5rem);
  line-height: 0.88;
  letter-spacing: -0.01em;
  text-transform: uppercase;
  margin-bottom: 2rem;
}
.hero__line {
  display: block;
  animation: lineIn 0.7s both;
}
.hero__line:nth-child(1) { animation-delay: 0.1s; }
.hero__line:nth-child(2) { animation-delay: 0.2s; }
.hero__line:nth-child(3) { animation-delay: 0.3s; }
.hero__line--accent {
  color: var(--accent);
  font-style: italic;
  position: relative;
}
.hero__line--accent::after {
  content: "";
  position: absolute;
  left: 0;
  right: 8%;
  bottom: 0.08em;
  height: 1px;
  background: var(--accent);
  opacity: 0.35;
}
.hero__sub {
  max-width: 60ch;
  color: var(--ink-dim);
  font-size: 1rem;
  animation: fadeUp 0.6s 0.45s both;
}
.dash { color: var(--accent); }

/* ============================================================
   Section labels
   ============================================================ */
.section-label {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--ink-dim);
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

/* ============================================================
   Mode picker - two big plate-like options
   ============================================================ */
.mode-picker { padding: 3rem 0 2rem; }
.mode-picker__opts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--rule);
}
.mode-opt {
  display: block;
  padding: 2rem 1.75rem;
  cursor: pointer;
  border-right: 1px solid var(--rule);
  position: relative;
  transition: background-color 0.15s, color 0.15s;
}
.mode-opt:last-child { border-right: none; }
.mode-opt input { position: absolute; opacity: 0; pointer-events: none; }
.mode-opt__num {
  display: block;
  font-family: var(--display);
  font-size: 1.5rem;
  color: var(--ink-faint);
  margin-bottom: 0.75rem;
  transition: color 0.15s;
}
.mode-opt__title {
  display: block;
  font-family: var(--display);
  font-size: 1.65rem;
  letter-spacing: 0.04em;
  margin-bottom: 0.4rem;
  text-transform: uppercase;
}
.mode-opt__sub {
  display: block;
  font-size: 0.78rem;
  color: var(--ink-dim);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.mode-opt:hover { background: var(--bg-elev); }
.mode-opt:has(input:checked) {
  background: var(--bg-elev);
  color: var(--accent);
}
.mode-opt:has(input:checked) .mode-opt__num,
.mode-opt:has(input:checked) .mode-opt__title { color: var(--accent); }
.mode-opt:has(input:checked)::before {
  content: "→";
  position: absolute;
  top: 1rem;
  right: 1.25rem;
  color: var(--accent);
  font-family: var(--mono);
  font-size: 1rem;
}

@media (max-width: 640px) {
  .mode-picker__opts { grid-template-columns: 1fr; }
  .mode-opt { border-right: none; border-bottom: 1px solid var(--rule); }
  .mode-opt:last-child { border-bottom: none; }
}

/* ============================================================
   Drop zone - reticle corners
   ============================================================ */
.drop-section { padding: 2rem 0; }
.drop-zone {
  position: relative;
  padding: 5rem 2rem;
  border: 1px dashed var(--rule-strong);
  background:
    radial-gradient(ellipse at center, rgba(255,174,0,0.02), transparent 70%),
    var(--bg);
  cursor: pointer;
  text-align: center;
  transition: border-color 0.2s, background-color 0.2s;
}
.drop-zone:hover,
.drop-zone:focus,
.drop-zone.drag-over {
  border-color: var(--accent);
  border-style: solid;
  outline: none;
}
.drop-zone.drag-over { background: rgba(255, 174, 0, 0.04); }

.drop-zone__corner {
  position: absolute;
  width: 16px;
  height: 16px;
  border: 1px solid var(--accent);
}
.drop-zone__corner--tl { top: -1px; left: -1px; border-right: none; border-bottom: none; }
.drop-zone__corner--tr { top: -1px; right: -1px; border-left: none; border-bottom: none; }
.drop-zone__corner--bl { bottom: -1px; left: -1px; border-right: none; border-top: none; }
.drop-zone__corner--br { bottom: -1px; right: -1px; border-left: none; border-top: none; }

.drop-zone__head {
  font-family: var(--display);
  font-size: 2.5rem;
  letter-spacing: 0.05em;
  color: var(--ink);
  margin-bottom: 0.75rem;
  text-transform: uppercase;
}
.drop-zone__formats {
  color: var(--accent);
  letter-spacing: 0.35em;
  font-size: 0.9rem;
  margin-bottom: 1.25rem;
}
.drop-zone__hint {
  color: var(--ink-dim);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* ============================================================
   Analyzing state
   ============================================================ */
.analyzing { padding: 5rem 0; text-align: center; }
.analyzing__stage {
  font-family: var(--display);
  font-size: 2rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin: 1rem 0 0.5rem;
  color: var(--accent);
}
.analyzing__hint {
  font-size: 0.75rem;
  color: var(--ink-dim);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.rec-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--fail);
  border-radius: 50%;
  margin-left: 0.5em;
  animation: blink 1s steps(2, start) infinite;
  vertical-align: 0.05em;
}
@keyframes blink { 0%, 50% { opacity: 1; } 50.01%, 100% { opacity: 0.2; } }

/* ============================================================
   Results: verdict card
   ============================================================ */
.results { padding-top: 3rem; animation: fadeUp 0.5s both; }
.verdict {
  position: relative;
  border: 1px solid var(--rule-strong);
  padding: 3rem 2rem;
  margin-bottom: 2.5rem;
  background: var(--bg-elev);
  overflow: hidden;
}
.verdict::before {
  content: attr(data-tag);
  position: absolute;
  top: 0.75rem;
  left: 1rem;
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  color: var(--ink-dim);
}
.verdict__title {
  font-family: var(--display);
  font-size: clamp(2.5rem, 8vw, 5.5rem);
  letter-spacing: -0.005em;
  line-height: 0.95;
  margin: 0.5rem 0 0.75rem;
  text-transform: uppercase;
}
.verdict__sub {
  font-size: 0.95rem;
  color: var(--ink-dim);
  max-width: 50ch;
}
.verdict--pass { border-color: var(--pass); }
.verdict--pass .verdict__title { color: var(--pass); }
.verdict--pass::after {
  content: "✓";
  position: absolute;
  right: 1.5rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 6rem;
  color: var(--pass);
  opacity: 0.15;
  font-family: var(--mono);
}
.verdict--watch { border-color: var(--watch); }
.verdict--watch .verdict__title { color: var(--watch); }
.verdict--watch::after {
  content: "!";
  position: absolute;
  right: 2rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 8rem;
  color: var(--watch);
  opacity: 0.15;
  font-family: var(--display);
}
.verdict--fail { border-color: var(--fail); background: rgba(214, 58, 47, 0.06); }
.verdict--fail .verdict__title { color: var(--fail); }
.verdict--fail::after {
  content: "✗";
  position: absolute;
  right: 1.5rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 6rem;
  color: var(--fail);
  opacity: 0.18;
}

/* ============================================================
   Criterion rows - instrument readouts
   ============================================================ */
.criteria { display: flex; flex-direction: column; gap: 0; border-top: 1px solid var(--rule); }
.criterion {
  display: grid;
  grid-template-columns: 80px 1fr auto;
  gap: 1.5rem;
  align-items: start;
  padding: 1.5rem 1.25rem;
  border-bottom: 1px solid var(--rule);
  position: relative;
}
.criterion__grade {
  font-family: var(--display);
  font-size: 0.9rem;
  letter-spacing: 0.15em;
  padding: 0.4rem 0.6rem;
  text-align: center;
  height: fit-content;
  text-transform: uppercase;
}
.criterion__grade--pass { background: transparent; border: 1px solid var(--pass); color: var(--pass); }
.criterion__grade--watch { background: transparent; border: 1px solid var(--watch); color: var(--watch); }
.criterion__grade--fail { background: var(--fail); color: var(--ink); }

.criterion__body { min-width: 0; }
.criterion__headline {
  font-family: var(--mono);
  font-weight: 500;
  font-size: 1rem;
  letter-spacing: -0.005em;
  margin-bottom: 0.5rem;
  color: var(--ink);
}
.criterion__consequence {
  color: var(--ink-dim);
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}
.criterion__action {
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 500;
}
.criterion__action::before { content: "→ "; }

.criterion__numbers {
  font-size: 0.75rem;
  color: var(--ink-dim);
  margin-top: 0.75rem;
}
.criterion__numbers summary {
  cursor: pointer;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  list-style: none;
  user-select: none;
}
.criterion__numbers summary::-webkit-details-marker { display: none; }
.criterion__numbers summary::before {
  content: "[ + ]";
  color: var(--ink-faint);
  margin-right: 0.5em;
}
.criterion__numbers[open] summary::before { content: "[ — ]"; color: var(--accent); }
.criterion__numbers pre {
  margin-top: 0.6rem;
  padding: 0.75rem;
  background: var(--bg);
  border: 1px solid var(--rule);
  color: var(--ink);
  font-size: 0.78rem;
  white-space: pre;
  overflow-x: auto;
}

.criterion__index {
  font-family: var(--display);
  color: var(--ink-faint);
  font-size: 1.5rem;
  letter-spacing: 0.05em;
}

@media (max-width: 640px) {
  .criterion { grid-template-columns: 60px 1fr; }
  .criterion__index { display: none; }
}

/* ============================================================
   CTA footer card
   ============================================================ */
.cta {
  margin-top: 3rem;
  border: 1px solid var(--accent);
  padding: 2rem 1.75rem;
  position: relative;
  background:
    linear-gradient(135deg, rgba(255,174,0,0.04), transparent 60%),
    var(--bg-elev);
}
.cta::before {
  content: "[ 04 ] NEXT STEP";
  position: absolute;
  top: -7px;
  left: 1rem;
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  background: var(--bg);
  padding: 0 0.5rem;
  color: var(--accent);
  text-transform: uppercase;
}
.cta__head {
  font-family: var(--display);
  font-size: 1.5rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}
.cta__body { color: var(--ink-dim); margin-bottom: 1.5rem; max-width: 55ch; }
.cta__btn {
  display: inline-block;
  background: var(--accent);
  color: var(--bg) !important;
  text-decoration: none;
  padding: 0.9rem 1.5rem;
  font-family: var(--mono);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.85rem;
  border: 1px solid var(--accent);
  transition: background 0.15s, color 0.15s;
}
.cta__btn:hover { background: transparent; color: var(--accent) !important; }
.cta__secondary {
  display: block;
  margin-top: 1.25rem;
  color: var(--ink-dim);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
}

/* ============================================================
   noscript warning + error states
   ============================================================ */
.noscript-warn {
  background: var(--fail);
  color: var(--ink);
  padding: 1rem;
  text-align: center;
  font-weight: 700;
  letter-spacing: 0.1em;
  font-size: 0.85rem;
}

/* ============================================================
   Animations
   ============================================================ */
@keyframes lineIn {
  from { opacity: 0; transform: translateY(0.5em); clip-path: inset(0 100% 0 0); }
  to { opacity: 1; transform: translateY(0); clip-path: inset(0 0 0 0); }
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}