/* =============================================================================
   Voice frequency test — landing + measurement instrument
   Direction: precision acoustic instrument meets editorial broadside.
   Dark studio panel, warm ivory serif, monospace instrument labels,
   one amber signal accent. All fonts are locally resolved stacks — the page
   loads zero external resources.
   ========================================================================== */

:root {
  --void:    #08090b;
  --ink:     #0c0e11;
  --panel:   #12151a;
  --panel-2: #171b21;

  --bone:    #ece5d8;
  --bone-2:  #a8a298;
  --bone-3:  #6f6b64;

  --signal:  #e8a33d;   /* amber — the measured, adult, "true" reading */
  --signal-d:#8a5f1c;
  --ember:   #c9502f;   /* red-orange — child band, warnings */
  --slate:   #7f97a3;   /* cool — adolescent band, neutral data */

  --line:    rgba(236,229,216,.13);
  --line-2:  rgba(236,229,216,.06);
  --glow:    0 0 34px rgba(232,163,61,.28);

  --serif: "Iowan Old Style", "Hoefler Text", "Palatino Linotype", Palatino,
           "Book Antiqua", Georgia, "Times New Roman", serif;
  --mono:  ui-monospace, "SF Mono", SFMono-Regular, "JetBrains Mono",
           "IBM Plex Mono", Menlo, Consolas, monospace;

  --gutter: clamp(1.25rem, 5vw, 5.5rem);
  --maxw: 1380px;
}

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

/* The UA's [hidden] rule is display:none at zero specificity, so any component
   that sets its own display (.btn is inline-flex, .tiers is grid) would ignore
   it and stay on screen. Everything in this app toggles visibility through the
   hidden attribute, so it has to win. */
[hidden] { display: none !important; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--void);
  color: var(--bone);
  font-family: var(--serif);
  font-size: clamp(1rem, .55vw + .87rem, 1.125rem);
  line-height: 1.62;
  font-variant-numeric: lining-nums;
  overflow-x: hidden;
}

/* ruled-paper vertical hairlines: the whole page sits on a measurement grid */
body::before {
  content: "";
  position: fixed; inset: 0;
  pointer-events: none; z-index: 0;
  background-image: repeating-linear-gradient(90deg,
    transparent 0 95px, var(--line-2) 95px 96px);
  -webkit-mask-image: linear-gradient(180deg, transparent, #000 12%, #000 88%, transparent);
          mask-image: linear-gradient(180deg, transparent, #000 12%, #000 88%, transparent);
}

.grain {
  position: fixed; inset: 0;
  pointer-events: none; z-index: 90;
  opacity: .19; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)'/%3E%3C/svg%3E");
}

main, .masthead, .footer { position: relative; z-index: 1; }

::selection { background: var(--signal); color: #14100a; }

a { color: inherit; }

/* ---------------------------------------------------------------- primitives */

.eyebrow {
  font-family: var(--mono);
  font-size: .6875rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--bone-3);
  margin: 0 0 1.4rem;
}

.micro {
  font-family: var(--mono);
  font-size: .6875rem;
  letter-spacing: .06em;
  line-height: 1.6;
  color: var(--bone-3);
  margin: 0;
}
.micro a { color: var(--bone-2); text-underline-offset: 3px; }

.display {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(2.35rem, 6.2vw, 5.1rem);
  line-height: 1.03;
  letter-spacing: -.022em;
  margin: 0 0 1.6rem;
}
.display em {
  font-style: italic;
  color: var(--signal);
  position: relative;
  white-space: nowrap;
}
.display em::after {
  content: "";
  position: absolute; left: -.02em; right: -.02em; top: 54%;
  height: 2px; background: var(--ember);
  transform: scaleX(0); transform-origin: left;
  animation: strike 1s cubic-bezier(.2,.8,.2,1) 1.05s forwards;
}
.display--sm { font-size: clamp(2rem, 4.6vw, 3.6rem); }

@keyframes strike { to { transform: scaleX(1); } }

.h2 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.75rem, 3.6vw, 3rem);
  line-height: 1.12;
  letter-spacing: -.018em;
  margin: 0 0 1.6rem;
}
.h2 em { font-style: italic; color: var(--signal); }
.h2--pane { font-size: clamp(1.5rem, 2.8vw, 2.2rem); margin-bottom: 1rem; }

.lede {
  font-size: clamp(1.05rem, .6vw + .95rem, 1.3rem);
  line-height: 1.55;
  color: var(--bone-2);
  max-width: 34ch;
  margin: 0 0 2.6rem;
}

.prose { max-width: 62ch; color: var(--bone-2); }
.prose p { margin: 0 0 1.35em; }
.prose em { color: var(--bone); font-style: italic; }
.prose--tight { margin-bottom: 2rem; }

/* buttons ------------------------------------------------------------------ */

.btn {
  font-family: var(--mono);
  font-size: .78rem;
  letter-spacing: .13em;
  text-transform: uppercase;
  border: 1px solid transparent;
  border-radius: 2px;
  padding: 1.05rem 1.6rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .8rem;
  transition: background .18s, color .18s, border-color .18s, transform .18s, box-shadow .25s;
  text-decoration: none;
}
.btn:focus-visible { outline: 2px solid var(--signal); outline-offset: 3px; }

.btn--primary { background: var(--signal); color: #150f04; font-weight: 600; }
.btn--primary:hover { background: #f4b856; transform: translateY(-1px); box-shadow: var(--glow); }
.btn--primary:active { transform: translateY(0); }
.btn--primary[disabled] {
  background: transparent; color: var(--bone-3);
  border-color: var(--line); cursor: not-allowed; box-shadow: none; transform: none;
}

.btn--ghost { background: transparent; color: var(--bone); border-color: var(--line); }
.btn--ghost:hover:not([disabled]) { border-color: var(--signal); color: var(--signal); }
.btn--ghost[disabled] { color: var(--bone-3); cursor: not-allowed; }

.btn--quiet { background: transparent; color: var(--bone-2); border-color: transparent; }
.btn--quiet:hover { color: var(--bone); border-color: var(--line); }

.btn--xl { padding: 1.25rem 2rem; font-size: .82rem; }
.btn--block { width: 100%; }
.btn__arrow { transition: transform .2s; }
.btn:hover .btn__arrow { transform: translateX(4px); }

/* toggle ------------------------------------------------------------------- */

.toggle { display: inline-flex; border: 1px solid var(--line); border-radius: 2px; overflow: hidden; }
.toggle__btn {
  font-family: var(--mono);
  font-size: .7rem; letter-spacing: .14em; text-transform: uppercase;
  background: transparent; color: var(--bone-2);
  border: 0; padding: .62rem 1.15rem; cursor: pointer;
  transition: background .16s, color .16s;
}
.toggle__btn + .toggle__btn { border-left: 1px solid var(--line); }
.toggle__btn:hover { color: var(--bone); background: rgba(236,229,216,.04); }
.toggle__btn[aria-pressed="true"] { background: var(--bone); color: var(--void); }
.toggle--lg .toggle__btn { padding: .8rem 1.6rem; font-size: .76rem; }

/* ------------------------------------------------------------------ masthead */

.masthead {
  display: flex; align-items: center; gap: 2rem;
  padding: 1.6rem var(--gutter);
  max-width: var(--maxw); margin: 0 auto;
  border-bottom: 1px solid var(--line-2);
}
.wordmark {
  display: inline-flex; align-items: center; gap: .6rem;
  font-family: var(--mono); font-size: .8rem; font-weight: 600;
  letter-spacing: .28em; text-transform: uppercase; text-decoration: none;
}
.wordmark__glyph {
  width: 20px; height: 16px; flex: 0 0 auto;
  background:
    linear-gradient(var(--signal),var(--signal)) 0 50%/2px 6px no-repeat,
    linear-gradient(var(--signal),var(--signal)) 6px 50%/2px 14px no-repeat,
    linear-gradient(var(--signal),var(--signal)) 12px 50%/2px 16px no-repeat,
    linear-gradient(var(--signal),var(--signal)) 18px 50%/2px 9px no-repeat;
}
.masthead__nav { margin-left: auto; display: flex; gap: 1.8rem; }
.masthead__nav a {
  font-family: var(--mono); font-size: .7rem; letter-spacing: .13em;
  text-transform: uppercase; color: var(--bone-3); text-decoration: none;
  transition: color .16s;
}
.masthead__nav a:hover { color: var(--signal); }
.masthead__badge {
  margin: 0; display: flex; align-items: center; gap: .5rem;
  font-family: var(--mono); font-size: .66rem; letter-spacing: .1em;
  color: var(--bone-3); text-transform: uppercase;
}
.dot {
  width: 6px; height: 6px; border-radius: 50%; background: var(--signal);
  box-shadow: 0 0 0 0 rgba(232,163,61,.55); animation: pulse 2.6s infinite;
}
@keyframes pulse {
  70% { box-shadow: 0 0 0 8px rgba(232,163,61,0); }
  100% { box-shadow: 0 0 0 0 rgba(232,163,61,0); }
}

/* ---------------------------------------------------------------------- hero */

.hero {
  max-width: var(--maxw); margin: 0 auto;
  padding: clamp(3.5rem, 9vw, 7.5rem) var(--gutter) clamp(3rem, 7vw, 5.5rem);
  display: grid; gap: clamp(2.5rem, 6vw, 5rem);
  grid-template-columns: minmax(0, 1fr);
  align-items: start;
}
@media (min-width: 980px) {
  .hero { grid-template-columns: minmax(0, 1fr) 300px; }
}

.control__row {
  display: flex; align-items: center; gap: 1rem; flex-wrap: wrap;
  margin-bottom: 1.6rem;
}
.control__label {
  font-family: var(--mono); font-size: .66rem; letter-spacing: .18em;
  text-transform: uppercase; color: var(--bone-3);
}
.control__hint {
  font-family: var(--mono); font-size: .66rem; letter-spacing: .05em;
  color: var(--bone-3); flex: 1 1 14ch;
}
.control .btn--xl { margin-bottom: 1rem; }

/* specimen (decorative vertical ruler) ------------------------------------- */

.specimen {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--panel), var(--ink));
  padding: 1.1rem 1.15rem 1.3rem;
  position: relative;
}
.specimen::after {
  content: ""; position: absolute; inset: 5px; border: 1px solid var(--line-2);
  pointer-events: none;
}
.specimen__head {
  display: flex; justify-content: space-between;
  font-family: var(--mono); font-size: .6rem; letter-spacing: .2em;
  text-transform: uppercase; color: var(--bone-3);
  padding-bottom: .9rem; border-bottom: 1px solid var(--line-2);
}
.specimen__scale {
  position: relative; height: 320px; margin: 1.1rem 0 1.2rem;
  padding-left: 3.2rem;
}
.vtick {
  position: absolute; left: 3.2rem; right: 0;
  border-top: 1px solid var(--line-2);
}
.vtick--major { border-top-color: var(--line); }
.vtick--major::before {
  content: attr(data-hz);
  position: absolute; right: calc(100% + .55rem); top: -.62em;
  font-family: var(--mono); font-size: .62rem; letter-spacing: .08em;
  color: var(--bone-3);
}
.vband {
  position: absolute; left: 3.2rem; right: 0;
  background: currentColor; opacity: .085;
}
.sweep { position: absolute; left: 3.2rem; right: 0; bottom: 0; height: 1px; }
.sweep i {
  position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent, var(--signal) 30%, var(--signal));
  box-shadow: 0 0 14px 1px rgba(232,163,61,.5);
}
.sweep::after {
  content: ""; position: absolute; right: -3px; top: -3px;
  width: 7px; height: 7px; background: var(--signal); border-radius: 50%;
}
.specimen__spec { margin: 0; display: grid; gap: .42rem; }
.specimen__spec > div {
  display: flex; justify-content: space-between; gap: 1rem;
  font-family: var(--mono); font-size: .64rem; letter-spacing: .06em;
  border-bottom: 1px dotted var(--line-2); padding-bottom: .38rem;
}
.specimen__spec dt { color: var(--bone-3); text-transform: uppercase; letter-spacing: .14em; }
.specimen__spec dd { margin: 0; color: var(--bone-2); }
.specimen__readout {
  margin: 1rem 0 0; font-family: var(--mono); font-size: 1.6rem;
  letter-spacing: .02em; color: var(--signal); font-variant-numeric: tabular-nums;
}
.specimen__readout b { font-size: .7rem; letter-spacing: .2em; color: var(--bone-3); font-weight: 400; }

/* -------------------------------------------------------------- fact strip */

.strip {
  max-width: var(--maxw); margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.strip__item {
  padding: 1.5rem 1.2rem 1.5rem 0;
  border-right: 1px solid var(--line-2);
}
.strip__item:last-child { border-right: 0; }
.strip__item b {
  display: block; font-family: var(--mono); font-size: 1.05rem;
  font-weight: 500; letter-spacing: .01em; color: var(--bone);
  font-variant-numeric: tabular-nums;
}
.strip__item span {
  display: block; margin-top: .35rem;
  font-family: var(--mono); font-size: .64rem; letter-spacing: .13em;
  text-transform: uppercase; color: var(--bone-3);
}

/* ------------------------------------------------------------------ sections */

.section {
  max-width: var(--maxw); margin: 0 auto;
  padding: clamp(4rem, 10vw, 8rem) var(--gutter);
  display: grid; gap: clamp(1.5rem, 4vw, 4rem);
  grid-template-columns: minmax(0, 1fr);
}
@media (min-width: 860px) {
  .section { grid-template-columns: 90px minmax(0, 1fr); }
}
.section__rail { display: flex; align-items: baseline; gap: 1rem; }
.rail__num {
  font-family: var(--mono); font-size: .72rem; letter-spacing: .2em;
  color: var(--signal);
}
.rail__line { flex: 1; height: 1px; background: var(--line); }
@media (min-width: 860px) {
  .section__rail { flex-direction: column; align-items: flex-start; position: sticky; top: 2rem; }
  .rail__line { width: 1px; height: 120px; flex: none; margin-top: .8rem; }
}

.pull {
  margin: 3rem 0 0;
  padding-left: 1.6rem;
  border-left: 2px solid var(--signal);
  font-size: clamp(1.3rem, 2.4vw, 1.9rem);
  line-height: 1.3;
  font-style: italic;
  color: var(--bone);
  max-width: 22ch;
}

/* steps -------------------------------------------------------------------- */

.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; counter-reset: s; }
.step {
  padding: 2rem 0;
  border-top: 1px solid var(--line-2);
  display: grid; gap: .6rem 2.5rem;
  grid-template-columns: minmax(0, 1fr);
  transition: background .3s;
}
@media (min-width: 720px) {
  .step { grid-template-columns: 8rem minmax(0, 1fr); }
  .step__idx { grid-row: span 2; }
}
.step:last-child { border-bottom: 1px solid var(--line-2); }
.step:hover { background: rgba(236,229,216,.02); }
.step__idx {
  font-family: var(--mono); font-size: .66rem; letter-spacing: .2em;
  text-transform: uppercase; color: var(--signal); padding-top: .45rem;
}
.step h3 {
  margin: 0; font-weight: 400; font-size: clamp(1.25rem, 2vw, 1.6rem);
  letter-spacing: -.01em;
}
.step p { margin: .5rem 0 0; color: var(--bone-2); max-width: 56ch; }

/* offer -------------------------------------------------------------------- */

.section--program { background: linear-gradient(180deg, transparent, rgba(18,21,26,.75) 30%, transparent); }

.offer {
  display: grid; gap: clamp(2rem, 4vw, 3.5rem);
  grid-template-columns: minmax(0, 1fr);
  margin-top: 2.5rem;
  align-items: start;
}
@media (min-width: 900px) { .offer { grid-template-columns: minmax(0, 1fr) 330px; } }

.offer__list { list-style: none; margin: 0; padding: 0; }
.offer__list li {
  padding: 1.4rem 0 1.4rem 2.2rem;
  border-bottom: 1px solid var(--line-2);
  color: var(--bone-2); font-size: .98rem; line-height: 1.55;
  position: relative;
}
.offer__list li::before {
  content: ""; position: absolute; left: 0; top: 1.85rem;
  width: 12px; height: 1px; background: var(--signal);
}
.offer__list li:first-child { border-top: 1px solid var(--line-2); }
.offer__list b {
  display: block; color: var(--bone); font-weight: 400;
  font-size: 1.12rem; margin-bottom: .35rem; letter-spacing: -.01em;
}

.price {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--panel-2), var(--ink));
  padding: 1.8rem 1.6rem;
  position: relative;
}
.price::before {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 2px;
  background: linear-gradient(90deg, var(--signal), var(--signal-d));
}
.price__anchor {
  margin: 0 0 .5rem; font-family: var(--mono); font-size: .66rem;
  letter-spacing: .12em; text-transform: uppercase; color: var(--bone-3);
}
.price__anchor s { color: var(--ember); text-decoration-thickness: 1px; }
.price__tag {
  margin: 0; font-size: clamp(3.6rem, 8vw, 5rem); line-height: 1;
  letter-spacing: -.04em; font-variant-numeric: lining-nums tabular-nums;
}
.price__tag span { font-size: .4em; vertical-align: .55em; color: var(--bone-3); margin-right: .06em; }
.price__note { margin: .9rem 0 1.6rem; color: var(--bone-2); font-size: .95rem; line-height: 1.5; }
.price .btn { font-size: .72rem; letter-spacing: .09em; padding-left: .9rem; padding-right: .9rem; }
.price__micro {
  margin: 1rem 0 0; font-family: var(--mono); font-size: .66rem;
  letter-spacing: .06em; color: var(--bone-3); text-align: center;
}
.price__micro a { color: var(--signal); }

/* closer ------------------------------------------------------------------- */

.closer {
  max-width: var(--maxw); margin: 0 auto;
  padding: clamp(4rem, 10vw, 8rem) var(--gutter) clamp(5rem, 11vw, 9rem);
  border-top: 1px solid var(--line);
  text-align: left;
}
.closer__kicker {
  font-family: var(--mono); font-size: .68rem; letter-spacing: .2em;
  text-transform: uppercase; color: var(--signal); margin: 0 0 1.4rem;
}

/* footer ------------------------------------------------------------------- */

.footer {
  border-top: 1px solid var(--line);
  background: var(--ink);
  padding: 3rem var(--gutter);
  max-width: var(--maxw); margin: 0 auto;
  display: grid; gap: 1.4rem;
}
@media (min-width: 860px) { .footer { grid-template-columns: 200px minmax(0, 1fr); } }
.footer__brand {
  display: flex; align-items: center; gap: .6rem;
  font-family: var(--mono); font-size: .78rem; font-weight: 600;
  letter-spacing: .26em; text-transform: uppercase;
}
.footer__disclaimer {
  margin: 0; font-size: .82rem; line-height: 1.65; color: var(--bone-3); max-width: 78ch;
}
.footer__disclaimer b { color: var(--bone-2); font-weight: 400; }
.footer__meta {
  grid-column: 1 / -1; margin: 0; padding-top: 1.4rem;
  border-top: 1px solid var(--line-2);
  font-family: var(--mono); font-size: .64rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--bone-3);
}

/* ============================================================= TEST STAGE */

.stage {
  position: fixed; inset: 0; z-index: 200;
  background: var(--void);
  overflow-y: auto;
  animation: stageIn .35s cubic-bezier(.2,.8,.2,1);
}
.stage[hidden] { display: none; }
@keyframes stageIn { from { opacity: 0; transform: scale(.99); } }

.stage__frame {
  max-width: 1080px; margin: 0 auto;
  padding: 1.4rem var(--gutter) 4rem;
  min-height: 100%;
  display: flex; flex-direction: column;
}
.stage__bar {
  display: flex; align-items: center; justify-content: space-between;
  padding-bottom: 1.2rem; border-bottom: 1px solid var(--line);
  margin-bottom: clamp(1.8rem, 5vw, 3.2rem);
}
.stage__id {
  font-family: var(--mono); font-size: .66rem; letter-spacing: .2em;
  text-transform: uppercase; color: var(--bone-3);
}
.stage__close {
  background: transparent; border: 0; cursor: pointer;
  font-family: var(--mono); font-size: .66rem; letter-spacing: .16em;
  text-transform: uppercase; color: var(--bone-3); padding: .4rem;
}
.stage__close:hover { color: var(--signal); }

.pane { animation: paneIn .4s cubic-bezier(.2,.8,.2,1) both; }
.pane[hidden] { display: none; }
@keyframes paneIn { from { opacity: 0; transform: translateY(10px); } }
.pane--center { flex: 1; display: flex; align-items: center; justify-content: center; }
.pane__actions { margin-top: 2.4rem; }
.pane__actions--row {
  display: flex; align-items: center; gap: 1.4rem; flex-wrap: wrap;
}

/* setup -------------------------------------------------------------------- */

.setup { list-style: none; margin: 2rem 0 0; padding: 0; display: grid; gap: 0; }
.setup li {
  display: grid; grid-template-columns: 2.6rem minmax(0, 1fr); gap: 1rem;
  padding: 1.6rem 0; border-top: 1px solid var(--line-2);
}
.setup li:last-child { border-bottom: 1px solid var(--line-2); }
.setup__idx {
  font-family: var(--mono); font-size: .8rem; color: var(--signal);
  padding-top: .1rem;
}
.setup h3 { margin: 0 0 .4rem; font-weight: 400; font-size: 1.2rem; }
.setup p { margin: 0 0 1rem; color: var(--bone-2); font-size: .95rem; max-width: 58ch; }
.setup p:last-child { margin-bottom: 0; }

/* recording ---------------------------------------------------------------- */

.rec__head {
  display: flex; align-items: baseline; justify-content: space-between; gap: 1rem;
  flex-wrap: wrap;
}
.rec__head .eyebrow { display: flex; align-items: center; gap: .6rem; margin-bottom: 0; }
.rec__dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--ember);
  animation: rec 1.1s ease-in-out infinite;
}
@keyframes rec { 50% { opacity: .25; } }
.rec__clock {
  margin: 0; font-family: var(--mono); font-size: clamp(1.6rem, 4vw, 2.4rem);
  letter-spacing: .04em; font-variant-numeric: tabular-nums; color: var(--bone);
}

.passage {
  margin: 2rem 0; padding: clamp(1.4rem, 3vw, 2.2rem);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--panel), var(--ink));
}
.passage p {
  margin: 0; font-size: clamp(1.15rem, 2.1vw, 1.6rem); line-height: 1.5;
  letter-spacing: -.005em;
}
.passage cite {
  display: block; margin-top: 1.2rem; font-style: normal;
  font-family: var(--mono); font-size: .64rem; letter-spacing: .1em;
  text-transform: uppercase; color: var(--bone-3);
}

.scope { position: relative; border: 1px solid var(--line-2); background: var(--ink); }
.scope canvas { display: block; width: 100%; height: 130px; }
.scope__meta {
  position: absolute; right: .7rem; top: .6rem; text-align: right;
  font-family: var(--mono); font-variant-numeric: tabular-nums;
  background: rgba(8,9,11,.88);
  border: 1px solid var(--line-2);
  padding: .4rem .65rem .35rem;
}
.scope__meta span {
  display: block; font-size: .58rem; letter-spacing: .2em;
  text-transform: uppercase; color: var(--bone-3);
}
.scope__meta b { font-size: 1.15rem; font-weight: 500; color: var(--signal); }

.progress { height: 2px; background: var(--line-2); margin-top: 1px; overflow: hidden; }
.progress i {
  display: block; height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--signal-d), var(--signal));
}

/* compute ------------------------------------------------------------------ */

.compute { text-align: left; }
.compute__spinner { display: flex; gap: 5px; margin-bottom: 1.6rem; }
.compute__spinner i {
  width: 3px; height: 26px; background: var(--signal);
  animation: bars .9s ease-in-out infinite;
}
.compute__spinner i:nth-child(2) { animation-delay: .15s; }
.compute__spinner i:nth-child(3) { animation-delay: .3s; }
@keyframes bars { 0%,100% { transform: scaleY(.3); } 50% { transform: scaleY(1); } }

.compute__log { list-style: none; margin: 0; padding: 0; min-height: 8rem; }
.compute__log li {
  font-family: var(--mono); font-size: .74rem; letter-spacing: .06em;
  color: var(--bone-3); padding: .3rem 0;
  animation: paneIn .3s both;
}
.compute__log li b { color: var(--bone-2); font-weight: 400; }

/* result ------------------------------------------------------------------- */

.verdict {
  display: grid; gap: clamp(1.5rem, 4vw, 3rem);
  grid-template-columns: minmax(0, 1fr);
  align-items: center;
  margin-bottom: 2.5rem;
}
@media (min-width: 760px) { .verdict { grid-template-columns: auto minmax(0, 1fr); } }

.verdict__number { display: flex; align-items: baseline; gap: .3rem; }
.verdict__f0 {
  font-size: clamp(5rem, 17vw, 11rem); line-height: .84;
  letter-spacing: -.05em;
  font-variant-numeric: lining-nums tabular-nums;
  color: var(--signal);
  text-shadow: 0 0 60px rgba(232,163,61,.28);
}
.verdict__unit {
  font-family: var(--mono); font-size: clamp(1rem, 2vw, 1.4rem);
  letter-spacing: .14em; color: var(--bone-3);
}
.verdict__line {
  margin: 0 0 1.5rem;
  font-size: clamp(1.2rem, 2.4vw, 1.7rem); line-height: 1.28;
  letter-spacing: -.01em;
}
.verdict__line b { font-weight: 400; color: var(--signal); font-style: italic; }
.verdict__line .quiet {
  display: block; margin-top: .85rem;
  font-family: var(--mono); font-size: .72rem; line-height: 1.7;
  letter-spacing: .03em; color: var(--bone-3); max-width: 46ch;
}
.verdict__stats { margin: 0; display: grid; gap: .45rem; max-width: 34ch; }
.verdict__stats > div {
  display: flex; justify-content: space-between; gap: 1rem;
  border-bottom: 1px dotted var(--line-2); padding-bottom: .4rem;
  font-family: var(--mono); font-size: .68rem; letter-spacing: .06em;
}
.verdict__stats dt { color: var(--bone-3); text-transform: uppercase; letter-spacing: .13em; }
.verdict__stats dd { margin: 0; color: var(--bone-2); font-variant-numeric: tabular-nums; }

/* horizontal ruler --------------------------------------------------------- */

.ruler {
  position: relative;
  height: 148px;
  margin: 2.5rem 0 3rem;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.rband {
  position: absolute; top: 0; bottom: 46px;
  border-right: 1px solid var(--line-2);
}
.rband i {
  position: absolute; inset: 0; background: currentColor; opacity: .1;
}
.rband span {
  position: absolute; left: .55rem; top: .6rem;
  font-family: var(--mono); font-size: .6rem; letter-spacing: .18em;
  text-transform: uppercase; color: currentColor; opacity: .85;
  white-space: nowrap;
}
.rtick {
  position: absolute; bottom: 46px; width: 1px; height: 8px;
  background: var(--line);
}
.rtick--major { height: 14px; background: var(--bone-3); }
.rtick--major::after {
  content: attr(data-hz);
  position: absolute; top: 17px; left: 50%; transform: translateX(-50%);
  font-family: var(--mono); font-size: .62rem; letter-spacing: .06em;
  color: var(--bone-3); font-variant-numeric: tabular-nums;
}
.rmark {
  position: absolute; top: -6px; bottom: 40px; width: 2px;
  background: var(--signal);
  box-shadow: 0 0 18px 2px rgba(232,163,61,.55);
  left: 0;
  transition: left 1.5s cubic-bezier(.16,.9,.2,1);
}
.rmark::before {
  content: ""; position: absolute; left: 50%; top: -5px;
  width: 10px; height: 10px; background: var(--signal);
  transform: translateX(-50%) rotate(45deg);
}
.rmark span {
  position: absolute; bottom: -34px; left: 50%; transform: translateX(-50%);
  font-family: var(--mono); font-size: .64rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--signal); white-space: nowrap;
  background: var(--void); padding: 0 .4rem;
}

/* archetype ---------------------------------------------------------------- */

.archetype {
  display: grid; gap: 1.6rem;
  grid-template-columns: minmax(0, 1fr);
  border: 1px solid var(--line);
  background: linear-gradient(120deg, var(--panel-2), var(--ink) 65%);
  padding: clamp(1.4rem, 3vw, 2.2rem);
  margin-bottom: 2.5rem;
}
@media (min-width: 820px) { .archetype { grid-template-columns: minmax(0, 1fr) 300px; align-items: center; } }
.archetype__name {
  margin: 0 0 .6rem; font-weight: 400;
  font-size: clamp(1.7rem, 3.4vw, 2.5rem); letter-spacing: -.02em;
  font-style: italic;
}
.archetype__desc { margin: 0; color: var(--bone-2); max-width: 52ch; }
.archetype__broadcast {
  margin: 0; padding: 1rem 1.1rem;
  border: 1px solid rgba(232,163,61,.32);
  background: rgba(232,163,61,.06);
  font-family: var(--mono); font-size: .72rem; line-height: 1.6;
  letter-spacing: .04em; color: var(--signal);
  display: flex; gap: .7rem; align-items: flex-start;
}
.archetype__broadcast[hidden] { display: none; }
.tick {
  flex: 0 0 auto; width: 14px; height: 8px; margin-top: .35rem;
  border-left: 2px solid var(--signal); border-bottom: 2px solid var(--signal);
  transform: rotate(-45deg);
}

.result__cta {
  display: grid; gap: 2rem;
  grid-template-columns: minmax(0, 1fr);
  align-items: center;
  padding-top: 2rem; border-top: 1px solid var(--line);
}
@media (min-width: 820px) { .result__cta { grid-template-columns: minmax(0, 1fr) 330px; } }
.result__pitch {
  margin: 0; font-size: clamp(1.05rem, 1.8vw, 1.25rem); line-height: 1.5;
  color: var(--bone-2); max-width: 46ch;
}
.result__pitch em { color: var(--signal); font-style: italic; }
.result__buttons { display: grid; gap: .6rem; }

/* error -------------------------------------------------------------------- */

.errbox { max-width: 52ch; }

/* =================================================================== MODAL */

.modal {
  position: fixed; inset: 0; z-index: 300;
  background: rgba(4,5,6,.86);
  backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: center;
  padding: 1.25rem;
  animation: paneIn .25s both;
  overflow-y: auto;
}
.modal[hidden] { display: none; }
.modal__card {
  position: relative;
  width: min(520px, 100%);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--panel-2), var(--ink));
  padding: clamp(1.6rem, 4vw, 2.6rem);
}
.modal__card::before {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 2px;
  background: linear-gradient(90deg, var(--signal), var(--signal-d));
}
.modal__close {
  position: absolute; top: .5rem; right: .7rem;
  background: transparent; border: 0; color: var(--bone-3);
  font-size: 1.5rem; line-height: 1; cursor: pointer; padding: .3rem;
}
.modal__close:hover { color: var(--bone); }
.modal__form { margin-top: 1.6rem; display: grid; gap: .9rem; }
.field { display: grid; gap: .45rem; }
.field span {
  font-family: var(--mono); font-size: .64rem; letter-spacing: .16em;
  text-transform: uppercase; color: var(--bone-3);
}
.field input {
  font-family: var(--mono); font-size: .95rem;
  background: var(--void); color: var(--bone);
  border: 1px solid var(--line); border-radius: 2px;
  padding: .95rem 1rem;
  transition: border-color .16s;
}
.field input:focus { outline: 0; border-color: var(--signal); }
.field__error {
  margin: 0; font-family: var(--mono); font-size: .68rem;
  letter-spacing: .06em; color: var(--ember);
}
.field__error[hidden] { display: none; }
/* tier chooser ------------------------------------------------------------- */

.tiers { display: grid; gap: .7rem; margin: 1.4rem 0 1rem; }
.tiers[hidden] { display: none; }
.tier {
  position: relative; text-align: left; cursor: pointer;
  display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: .2rem .8rem;
  background: transparent; color: var(--bone-2);
  border: 1px solid var(--line); border-radius: 2px;
  padding: 1rem 1.1rem;
  font-family: var(--serif); font-size: .95rem;
  transition: border-color .16s, background .16s;
}
.tier:hover { border-color: var(--bone-3); }
.tier[aria-pressed="true"] { border-color: var(--signal); background: rgba(232,163,61,.05); }
.tier__name {
  font-family: var(--mono); font-size: .7rem; letter-spacing: .16em;
  text-transform: uppercase; color: var(--bone);
}
.tier__price {
  grid-row: 1; grid-column: 2; align-self: start;
  font-size: 1.5rem; line-height: 1; letter-spacing: -.03em; color: var(--signal);
  font-variant-numeric: lining-nums tabular-nums;
}
.tier__desc { grid-column: 1 / -1; font-size: .88rem; line-height: 1.5; color: var(--bone-2); }
.tier__desc b { color: var(--bone); font-weight: 400; }
.tier__flag {
  position: absolute; top: -.62rem; right: .9rem;
  font-family: var(--mono); font-size: .55rem; letter-spacing: .18em;
  text-transform: uppercase; color: #150f04; background: var(--signal);
  padding: .2rem .5rem; border-radius: 2px;
}
.tier--flag { padding-top: 1.25rem; }
.tier__anchor { margin-bottom: 1.1rem; }
.tier__anchor[hidden] { display: none; }
.tier__anchor b { color: var(--bone-2); font-weight: 400; }

.tag {
  display: inline-block; vertical-align: 2px; margin-left: .5rem;
  font-family: var(--mono); font-size: .55rem; letter-spacing: .16em;
  text-transform: uppercase; color: var(--signal);
  border: 1px solid rgba(232,163,61,.4); border-radius: 2px; padding: .12rem .4rem;
}
.price__alt {
  margin: -.6rem 0 1.4rem; padding-top: 1rem;
  border-top: 1px dotted var(--line-2);
  font-size: .88rem; line-height: 1.5; color: var(--bone-3);
}
.price__alt b { color: var(--bone-2); font-weight: 400; }

.modal__done { margin-top: 1.6rem; display: grid; gap: 1rem; }
.modal__done[hidden] { display: none; }
.modal__done h3 { margin: 0; font-weight: 400; font-size: 1.5rem; letter-spacing: -.01em; }
.tickmark {
  width: 26px; height: 14px; margin: 0;
  border-left: 2px solid var(--signal); border-bottom: 2px solid var(--signal);
  transform: rotate(-45deg); transform-origin: center;
}

/* ============================================================ page reveals */

.reveal { animation: revealIn .8s cubic-bezier(.2,.8,.2,1) both; animation-delay: var(--d, 0ms); }
@keyframes revealIn { from { opacity: 0; transform: translateY(14px); } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ------------------------------------------------------------ small screens */

@media (max-width: 720px) {
  .masthead { flex-wrap: wrap; gap: .7rem 1.4rem; padding-top: 1.1rem; padding-bottom: 1.1rem; }
  .masthead__nav { order: 3; margin-left: 0; width: 100%; gap: 1.2rem; }
  .masthead__badge { margin-left: auto; }

  /* keep the hero CTA above the fold on a phone: smaller display size,
     natural wrapping instead of the desktop line breaks, tighter rhythm */
  .hero { padding-top: 2.5rem; }
  .display { font-size: clamp(2.05rem, 8.6vw, 3rem); }
  .display br { display: none; }
  .eyebrow { margin-bottom: 1rem; }
  .lede { max-width: none; font-size: 1.02rem; line-height: 1.5; margin-bottom: 1.8rem; }
  .control__row { margin-bottom: 1.1rem; gap: .7rem; }
  .control__hint { flex-basis: 100%; }
  .btn--xl { padding: 1.05rem 1.2rem; font-size: .76rem; letter-spacing: .1em; }
  .specimen__scale { height: 240px; }
  .strip__item { border-right: 0; border-bottom: 1px solid var(--line-2); padding-right: 0; }
  .strip__item:last-child { border-bottom: 0; }
  .verdict__f0 { font-size: 24vw; }
  .ruler { height: 170px; }
  .rband span { writing-mode: vertical-rl; left: .3rem; top: .5rem; font-size: .55rem; }
}