/* Landing page. Layout follows readme.com: big rounded colour panels (navy, purple, blue, black)
   alternating with white sections on a faint grid, a white input card in the hero, a product preview
   overlapping the hero, and a floating dock. Motion lives in motion.css. */

.skip-link {
  position: absolute;
  top: var(--space-2);
  left: var(--space-4);
  z-index: 100;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  background: var(--color-navy-900);
  color: #fff;
  transform: translateY(-200%);
}

.skip-link:focus {
  transform: none;
}

/* ------------------------------------------------------------------ header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  border-bottom: 1px solid transparent;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: saturate(1.4) blur(12px);
  transition:
    border-color 200ms var(--ease-out),
    box-shadow 200ms var(--ease-out);
}

/* Set by landing.js once the page has scrolled. */
.site-header.is-scrolled {
  border-bottom-color: var(--color-line);
  box-shadow: 0 6px 24px -18px rgba(10, 20, 80, 0.4);
}

.site-nav {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  height: 60px;
}

.site-nav__links {
  display: none;
  align-items: center;
  gap: var(--space-5);
  color: var(--color-ink-muted);
  font-size: var(--text-sm);
}

.site-nav__links--end {
  justify-content: flex-end;
}

.site-nav__mobile-cta {
  justify-self: end;
}

.site-nav .brand {
  grid-column: 2;
}

@media (max-width: 899px) {
  .site-nav {
    grid-template-columns: auto 1fr;
  }

  .site-nav .brand {
    grid-column: 1;
    grid-row: 1;
  }

  .site-nav__mobile-cta {
    grid-column: 2;
    grid-row: 1;
  }
}

@media (min-width: 900px) {
  .site-nav__links {
    display: flex;
  }

  .site-nav__mobile-cta {
    display: none;
  }
}

/* ------------------------------------------------------------------ colour panels */

/* A big rounded block with its own colour and blueprint grid. Variants set the palette. */
.panel {
  --panel-bg: var(--color-navy-950);
  --panel-line: var(--color-navy-line);
  --panel-glow: rgba(79, 169, 255, 0.16);

  position: relative;
  max-width: 1240px;
  margin: 0 auto;
  overflow: hidden;
  border-radius: var(--radius-xl);
  background: var(--panel-bg);
  color: #fff;
  isolation: isolate;
}

/* Grid lines, fading out towards the edges. */
.panel::before {
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(var(--panel-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--panel-line) 1px, transparent 1px);
  background-position: center -1px;
  background-size: 56px 56px;
  content: "";
  -webkit-mask-image: radial-gradient(ellipse 85% 75% at 50% 45%, #000 35%, transparent 100%);
  mask-image: radial-gradient(ellipse 85% 75% at 50% 45%, #000 35%, transparent 100%);
}

/* Soft light that follows the cursor (position set by js/landing/spotlight.js). */
.panel::after {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: radial-gradient(420px circle at var(--spot-x, 50%) var(--spot-y, -20%), var(--panel-glow), transparent 70%);
  content: "";
  opacity: var(--spot-opacity, 0);
  transition: opacity 400ms var(--ease-out);
  pointer-events: none;
}

.panel--navy {
  --panel-bg: var(--color-navy-950);
}

.panel--violet {
  --panel-bg: linear-gradient(160deg, var(--color-violet-900) 0%, var(--color-violet-950) 70%);
  --panel-line: var(--color-violet-line);
  --panel-glow: rgba(195, 164, 255, 0.2);
}

.panel--blue {
  --panel-bg: linear-gradient(160deg, var(--color-blue-500) 0%, var(--color-blue-600) 60%, #0b26b8 100%);
  --panel-line: var(--color-blue-line);
  --panel-glow: rgba(255, 255, 255, 0.18);
}

.panel--black {
  --panel-bg: var(--color-black);
  --panel-line: var(--color-black-line);
  --panel-glow: rgba(79, 169, 255, 0.12);
}

/* Colour sections below the hero run edge to edge, square, like readme.com. Only the hero keeps the
   rounded, inset panel. */
.band .panel,
.band .night {
  max-width: none;
  border-radius: 0;
}

.band .panel > .container {
  padding-top: var(--space-9);
  padding-bottom: var(--space-9);
}

.heading--light {
  color: #fff;
}

.lede--light {
  color: rgba(255, 255, 255, 0.76);
}

.accent-lilac {
  color: var(--color-violet-300);
}

.eyebrow--on-violet {
  border-color: var(--color-violet-line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--color-violet-300);
}

.eyebrow--on-blue {
  border-color: var(--color-blue-line);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.eyebrow--on-black {
  border-color: var(--color-black-line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--color-blue-400);
}

.hint-line {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-violet-300);
  font-family: var(--font-mono);
  font-size: 12px;
}

.hint-line--light {
  color: rgba(255, 255, 255, 0.82);
}

.hint-line__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
}

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

.hero {
  padding: var(--space-4) var(--space-3) 0;
}

.hero__panel {
  padding: var(--space-8) var(--gutter) 200px;
  text-align: center;
}

/* The small V-notch at the top centre of the hero panel: a page-coloured diamond over its edge. */
.hero {
  position: relative;
}

.hero::before {
  position: absolute;
  top: calc(var(--space-4) - 12px);
  left: 50%;
  z-index: 2;
  width: 24px;
  height: 24px;
  border-radius: 4px;
  background: var(--color-page);
  content: "";
  transform: translateX(-50%) rotate(45deg);
}

.hero__badge {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: var(--space-6);
  padding: 4px 12px 4px 4px;
  border: 1px solid var(--color-navy-line);
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.04);
  color: rgba(255, 255, 255, 0.86);
  font-size: 13px;
  transition: background-color 200ms var(--ease-out);
}

.hero__badge:hover {
  background: rgba(255, 255, 255, 0.09);
}

.hero__badge-tag {
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  background: var(--color-blue-400);
  color: var(--color-navy-950);
  font-size: 12px;
  font-weight: 500;
}

.hero__badge-arrow {
  transition: transform 200ms var(--ease-out);
}

.hero__badge:hover .hero__badge-arrow {
  transform: translateX(3px);
}

.hero__title {
  max-width: 14ch;
  margin: 0 auto;
}

.hero__typed-line {
  display: block;
  min-height: 1.1em;
}

.hero__caret {
  display: inline-block;
  width: 2px;
  height: 0.9em;
  margin-left: 4px;
  background: var(--color-blue-400);
  vertical-align: -0.08em;
  animation: caret-blink 1s steps(1) infinite;
}

.hero__lede {
  max-width: 34rem;
  margin: var(--space-5) auto 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: var(--text-lg);
}

/* ------------------------------------------------------------------ run card (hero form) */

.run-card {
  --corner-color: var(--color-blue-400);

  max-width: 460px;
  margin: var(--space-7) auto 0;
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: var(--shadow-float);
  color: var(--color-ink);
  text-align: left;
}

.run-card__tabs {
  display: flex;
  gap: var(--space-1);
  padding: var(--space-3);
  overflow-x: auto;
  border-bottom: 1px solid var(--color-line);
  scrollbar-width: none;
}

.run-card__tab {
  display: inline-flex;
  flex: none;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  border-radius: var(--radius-pill);
  color: var(--color-ink-muted);
  font-size: 13px;
  transition:
    background-color 160ms var(--ease-out),
    color 160ms var(--ease-out);
}

.run-card__tab svg {
  width: 15px;
  height: 15px;
}

a.run-card__tab:hover {
  background: var(--color-surface-sunken);
  color: var(--color-ink);
}

.run-card__tab.is-active {
  background: var(--color-blue-100);
  color: var(--color-blue-600);
}

.run-card__field {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3);
  border-bottom: 1px solid var(--color-line);
  transition: background-color 200ms var(--ease-out);
}

.run-card__prefix {
  flex: none;
  padding: 7px 10px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  color: var(--color-ink-muted);
  font-size: 13px;
}

.run-card__field input {
  flex: 1;
  min-width: 0;
  padding: 8px 4px;
  border: 0;
  outline: 0;
  background: transparent;
  font-family: var(--font-mono);
  font-size: 14px;
}

.run-card__field:focus-within {
  background: var(--color-blue-50);
}

.run-card__sample {
  flex: none;
  padding: 6px 10px;
  border: 1px dashed var(--color-line-strong);
  border-radius: var(--radius-pill);
  background: #fff;
  color: var(--color-ink-muted);
  font-size: 12px;
  transition:
    border-color 160ms var(--ease-out),
    color 160ms var(--ease-out);
}

.run-card__sample:hover {
  border-color: var(--color-blue-600);
  color: var(--color-blue-600);
}

.run-card__error {
  padding: var(--space-2) var(--space-4) 0;
  color: var(--color-verdict-not);
  font-size: 13px;
}

.run-card__actions {
  padding: var(--space-3);
  text-align: center;
}

.run-card__alt {
  margin-top: var(--space-3);
  color: var(--color-ink-muted);
  font-size: 13px;
}

.run-card__alt a {
  color: var(--color-blue-600);
}

@media (max-width: 419px) {
  .run-card__prefix {
    display: none;
  }
}

/* ------------------------------------------------------------------ product preview */

.preview {
  position: relative;
  z-index: 1;
  margin-top: -150px;
  perspective: 1400px;
}

.preview__window {
  max-width: 960px;
  margin: 0 auto;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: var(--shadow-float);
  font-size: 13px;
  transform: rotateX(var(--tilt-x, 0deg)) rotateY(var(--tilt-y, 0deg));
  transition: transform 300ms var(--ease-out);
}

.preview__bar {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 10px var(--space-4);
  border-bottom: 1px solid var(--color-line);
}

.preview__dots {
  display: flex;
  gap: 5px;
  margin-right: var(--space-2);
}

.preview__dots i {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--color-line-strong);
}

.preview__tab {
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  color: var(--color-ink-muted);
}

.preview__tab.is-active {
  background: var(--color-surface-sunken);
  color: var(--color-ink);
}

.preview__search {
  display: none;
  margin-left: auto;
  padding: 4px 10px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  color: var(--color-ink-faint);
}

.preview__search kbd {
  margin-left: var(--space-5);
  font-family: var(--font-mono);
  font-size: 11px;
}

.preview__body {
  display: grid;
  grid-template-columns: 1fr;
}

.preview__side {
  display: none;
  padding: var(--space-4);
  border-right: 1px solid var(--color-line);
}

.preview__side-label {
  margin: var(--space-3) 0 var(--space-2);
  color: var(--color-ink-faint);
  font-size: 12px;
}

.preview__side-label:first-child {
  margin-top: 0;
}

.preview__side-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 5px 8px;
  border-radius: var(--radius-sm);
  color: var(--color-ink-muted);
}

.preview__side-item span {
  margin-left: auto;
  color: var(--color-ink-faint);
  font-family: var(--font-mono);
  font-size: 11px;
}

.preview__side-item img {
  width: 18px;
  height: 18px;
  border-radius: 5px;
}

.preview__side-item.is-active {
  background: var(--color-blue-50);
  color: var(--color-blue-600);
}

/* Pulsing dot: this mind is running right now. */
.preview__live {
  width: 7px;
  height: 7px;
  margin-left: auto;
  border-radius: 50%;
  background: var(--color-teal-500);
  box-shadow: 0 0 0 0 rgba(17, 163, 127, 0.5);
  animation: live-pulse 1.8s var(--ease-out) infinite;
}

.preview__main {
  padding: var(--space-5);
}

.preview__kicker {
  color: var(--color-ink-faint);
  font-size: 12px;
}

.preview__heading {
  margin: 2px 0 var(--space-4);
  font-size: var(--text-xl);
}

.preview__row {
  display: grid;
  grid-template-columns: 32px 1fr;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  border-top: 1px solid var(--color-line);
  color: var(--color-ink);
}

.preview__row img {
  width: 32px;
  height: 32px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
}

.preview__row span:not(.verdict):not(.chip) {
  color: var(--color-ink-muted);
}

.preview__row .verdict,
.preview__row .chip {
  grid-column: 2;
  justify-self: start;
}

.preview__working i {
  display: inline-block;
  width: 3px;
  height: 3px;
  margin-left: 2px;
  border-radius: 50%;
  background: currentColor;
  animation: dot-bounce 1.2s infinite;
}

.preview__working i:nth-child(2) {
  animation-delay: 150ms;
}

.preview__working i:nth-child(3) {
  animation-delay: 300ms;
}

@media (min-width: 720px) {
  .preview__search {
    display: block;
  }

  .preview__body {
    grid-template-columns: 210px 1fr;
  }

  .preview__side {
    display: block;
  }

  .preview__row {
    grid-template-columns: 32px 1fr auto;
  }

  .preview__row .verdict,
  .preview__row .chip {
    grid-column: auto;
  }
}

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

.section {
  padding: var(--space-9) 0;
}

.section__head {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-5);
  margin-bottom: var(--space-7);
  text-align: center;
}

.section__lede {
  max-width: 36rem;
}

/* Steps: one bordered strip split into cells, like readme's feature grid. */
.steps {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
}

.step {
  position: relative;
  padding: var(--space-6) var(--space-5);
  border-bottom: 1px solid var(--color-line);
  transition: background-color 240ms var(--ease-out);
}

.step:last-child {
  border-bottom: 0;
}

.step:hover {
  background: var(--color-blue-50);
}

.step__num {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  color: var(--color-ink-faint);
  font-size: 12px;
  transition: color 240ms var(--ease-out);
}

.step:hover .step__num {
  color: var(--color-blue-600);
}

.step__art {
  width: 72px;
  height: 72px;
  margin-bottom: var(--space-4);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  transition: transform 400ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

.step:hover .step__art {
  transform: translateY(-4px) rotate(-4deg);
}

.step__title {
  margin-bottom: var(--space-2);
  font-size: var(--text-lg);
  font-weight: 500;
}

.step__body {
  color: var(--color-ink-muted);
  font-size: var(--text-sm);
}

/* Progress line along the top of the strip, drawn when the strip scrolls into view. */
.steps::before {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-blue-600), var(--color-violet-500));
  content: "";
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 1400ms var(--ease-out) 300ms;
}

.steps.is-visible::before {
  transform: scaleX(1);
}

@media (min-width: 720px) {
  .steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .step {
    border-right: 1px solid var(--color-line);
  }

  .step:nth-child(2n) {
    border-right: 0;
  }

  .step:nth-last-child(-n + 2) {
    border-bottom: 0;
  }
}

@media (min-width: 1040px) {
  .steps {
    grid-template-columns: repeat(4, 1fr);
  }

  .step,
  .step:nth-child(2n) {
    border-right: 1px solid var(--color-line);
    border-bottom: 0;
  }

  .step:last-child {
    border-right: 0;
  }
}

/* Two-column split: text and a visual. */
.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-items: center;
  gap: var(--space-7);
}

.split__text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-5);
}

@media (min-width: 900px) {
  .split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    gap: var(--space-8);
  }

  .split--reverse .split__text {
    order: 2;
  }
}

/* ------------------------------------------------------------------ 02 receipt demo (purple) */

.receipt-demo {
  padding: var(--space-5);
  border: 1px solid var(--color-violet-line);
  border-radius: var(--radius-lg);
  background: rgba(18, 5, 46, 0.6);
  box-shadow: 0 30px 80px -30px rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
}

.receipt-demo__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  color: var(--color-violet-300);
  font-size: 12px;
}

.receipt-demo__numbers {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

@media (min-width: 560px) {
  .receipt-demo__numbers {
    grid-template-columns: repeat(4, 1fr);
  }
}

.receipt-demo__numbers button {
  display: grid;
  gap: 2px;
  width: 100%;
  padding: var(--space-3);
  border: 1px solid var(--color-violet-line);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.03);
  color: #fff;
  text-align: left;
  transition:
    background-color 200ms var(--ease-out),
    border-color 200ms var(--ease-out),
    transform 200ms var(--ease-out);
}

.receipt-demo__numbers button span {
  color: rgba(255, 255, 255, 0.6);
  font-size: 11px;
}

.receipt-demo__numbers b {
  font-size: var(--text-lg);
  font-weight: 500;
}

.receipt-demo__numbers button:hover,
.receipt-demo__numbers button:focus-visible,
.receipt-demo__numbers button.is-active {
  border-color: var(--color-violet-300);
  background: rgba(195, 164, 255, 0.12);
  transform: translateY(-2px);
}

.receipt-demo__timeline {
  display: grid;
  margin-left: 4px;
  border-left: 1px dashed rgba(195, 164, 255, 0.3);
}

.receipt-demo__timeline li {
  position: relative;
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-2) var(--space-2) var(--space-4);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: var(--text-sm);
  transition:
    background-color 240ms var(--ease-out),
    opacity 240ms var(--ease-out);
}

.receipt-demo__timeline li::before {
  position: absolute;
  top: 15px;
  left: -4px;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: var(--color-violet-500);
  content: "";
  transition:
    transform 240ms var(--ease-out),
    background-color 240ms var(--ease-out);
}

/* While a number is hovered, other steps dim and the source step lights up. */
.receipt-demo.is-tracing .receipt-demo__timeline li {
  opacity: 0.35;
}

.receipt-demo.is-tracing .receipt-demo__timeline li.is-source {
  background: rgba(195, 164, 255, 0.14);
  opacity: 1;
}

.receipt-demo__timeline li.is-source::before {
  background: var(--color-violet-300);
  transform: scale(1.6);
}

.receipt-demo__timeline time {
  color: rgba(255, 255, 255, 0.45);
  font-size: 12px;
  line-height: 1.9;
}

.receipt-demo__timeline b {
  display: block;
  font-weight: 500;
}

.receipt-demo__timeline i {
  color: rgba(255, 255, 255, 0.55);
  font-style: normal;
}

.receipt-demo__hash {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-top: var(--space-4);
  padding: var(--space-3);
  border: 1px solid var(--color-violet-line);
  border-radius: var(--radius-md);
  font-size: 12px;
}

.receipt-demo__hash-label {
  flex: none;
  color: var(--color-violet-300);
}

.receipt-demo__hash-value {
  min-width: 0;
  overflow: hidden;
  color: rgba(255, 255, 255, 0.7);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.receipt-demo__copy {
  flex: none;
  margin-left: auto;
  padding: 3px 10px;
  border: 1px solid var(--color-violet-line);
  border-radius: var(--radius-pill);
  background: transparent;
  color: #fff;
  font-size: 12px;
  transition: background-color 160ms var(--ease-out);
}

.receipt-demo__copy:hover {
  background: rgba(255, 255, 255, 0.08);
}

.receipt-demo__copy.is-done {
  border-color: var(--color-violet-300);
  color: var(--color-violet-300);
}

/* ------------------------------------------------------------------ 03 second look demo (white) */

.look-demo {
  max-width: 880px;
  margin: 0 auto;
}

.look-demo__tabs {
  position: relative;
  display: flex;
  width: fit-content;
  max-width: 100%;
  margin: 0 auto var(--space-5);
  padding: 4px;
  overflow-x: auto;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  background: var(--color-surface-sunken);
  scrollbar-width: none;
}

.look-demo__tab {
  position: relative;
  z-index: 1;
  flex: none;
  padding: 8px 16px;
  border: 0;
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--color-ink-muted);
  font-size: var(--text-sm);
  transition: color 200ms var(--ease-out);
}

.look-demo__tab.is-active {
  color: var(--color-ink);
}

/* Sliding white pill behind the active tab (position set in look-demo.js). */
.look-demo__indicator {
  position: absolute;
  top: 4px;
  bottom: 4px;
  left: 0;
  width: var(--indicator-width, 0);
  border-radius: var(--radius-pill);
  background: #fff;
  box-shadow: var(--shadow-card);
  transform: translateX(var(--indicator-x, 0));
  transition:
    transform 320ms var(--ease-out),
    width 320ms var(--ease-out);
}

.look-demo__card {
  display: grid;
  gap: var(--space-5);
  padding: var(--space-6);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: var(--shadow-card);
}

.look-demo__card.is-swapping {
  animation: card-swap 380ms var(--ease-out);
}

.look-demo__top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
}

.look-demo__top img {
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
}

.look-demo__token {
  font-family: var(--font-serif);
  font-size: var(--text-2xl);
  line-height: 1;
}

.look-demo__token small {
  margin-left: var(--space-2);
  color: var(--color-ink-faint);
  font-family: var(--font-sans);
  font-size: 13px;
}

.look-demo__score {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-left: auto;
}

.look-demo__ring {
  --ring-color: var(--color-verdict-holds);

  position: relative;
  display: grid;
  place-items: center;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: conic-gradient(var(--ring-color) calc(var(--score, 0) * 1%), var(--color-line) 0);
  transition: --score 900ms var(--ease-out);
}

.look-demo__ring::before {
  position: absolute;
  inset: 6px;
  border-radius: 50%;
  background: #fff;
  content: "";
}

.look-demo__ring span {
  position: relative;
  font-family: var(--font-mono);
  font-size: 14px;
}

.look-demo__thesis {
  font-family: var(--font-serif);
  font-size: var(--text-xl);
  line-height: 1.45;
}

.look-demo__checks {
  display: grid;
  gap: var(--space-3);
}

@media (min-width: 720px) {
  .look-demo__checks {
    grid-template-columns: 1fr 1fr;
  }
}

.look-demo__check {
  padding: var(--space-4);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-surface-sunken);
}

.look-demo__check p:first-child {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 500;
}

.look-demo__check p:last-child {
  color: var(--color-ink-muted);
  font-size: var(--text-sm);
}

.look-demo__meaning {
  padding-top: var(--space-4);
  border-top: 1px dashed var(--color-line-strong);
  color: var(--color-ink-muted);
  font-family: var(--font-mono);
  font-size: 12px;
}

/* ------------------------------------------------------------------ 04 watch demo (blue) */

.watch-demo {
  display: grid;
  gap: var(--space-4);
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: 0 30px 80px -30px rgba(4, 6, 46, 0.6);
  color: var(--color-ink);
}

.watch-demo__metrics {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.watch-demo__metrics button {
  padding: 6px 12px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  background: #fff;
  color: var(--color-ink-muted);
  font-size: 13px;
  transition:
    background-color 160ms var(--ease-out),
    border-color 160ms var(--ease-out),
    color 160ms var(--ease-out);
}

.watch-demo__metrics button:hover {
  border-color: var(--color-ink-faint);
}

.watch-demo__metrics button.is-active {
  border-color: var(--color-blue-600);
  background: var(--color-blue-50);
  color: var(--color-blue-600);
}

.watch-demo__rule {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-3);
  font-size: var(--text-sm);
  font-weight: 500;
}

.watch-demo__value {
  color: var(--color-blue-600);
  font-size: var(--text-2xl);
}

.watch-demo__value.is-bumped {
  animation: value-bump 260ms var(--ease-out);
}

/* Range slider, styled to the brand. --fill is set from the value in watch-demo.js. */
.watch-demo__slider {
  width: 100%;
  height: 24px;
  margin: 0;
  background: transparent;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
}

.watch-demo__slider::-webkit-slider-runnable-track {
  height: 6px;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--color-blue-600) var(--fill, 50%), var(--color-line) var(--fill, 50%));
}

.watch-demo__slider::-moz-range-track {
  height: 6px;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--color-blue-600) var(--fill, 50%), var(--color-line) var(--fill, 50%));
}

.watch-demo__slider::-webkit-slider-thumb {
  width: 22px;
  height: 22px;
  margin-top: -8px;
  border: 3px solid var(--color-blue-600);
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 2px 8px rgba(18, 56, 240, 0.35);
  transition: transform 160ms var(--ease-out);
  -webkit-appearance: none;
  appearance: none;
}

.watch-demo__slider::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border: 3px solid var(--color-blue-600);
  border-radius: 50%;
  background: #fff;
}

.watch-demo__slider:active::-webkit-slider-thumb {
  transform: scale(1.15);
}

.watch-demo__tokens {
  display: grid;
  gap: var(--space-2);
}

.watch-demo__token {
  display: grid;
  grid-template-columns: 32px 1fr auto;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  transition:
    border-color 240ms var(--ease-out),
    background-color 240ms var(--ease-out);
}

.watch-demo__token img {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
}

.watch-demo__token-name {
  font-size: var(--text-sm);
  font-weight: 600;
}

.watch-demo__bar {
  position: relative;
  height: 4px;
  margin-top: 6px;
  border-radius: var(--radius-pill);
  background: var(--color-line);
}

.watch-demo__bar-fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: var(--value, 0%);
  border-radius: inherit;
  background: var(--color-ink-faint);
  transition: background-color 240ms var(--ease-out);
}

/* The threshold marker moves with the slider. */
.watch-demo__bar-mark {
  position: absolute;
  top: -4px;
  left: var(--threshold, 50%);
  width: 2px;
  height: 12px;
  border-radius: 1px;
  background: var(--color-blue-600);
  transition: left 120ms linear;
}

.watch-demo__state {
  min-width: 64px;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 11px;
  text-align: center;
  transition:
    background-color 240ms var(--ease-out),
    color 240ms var(--ease-out);
}

.watch-demo__token.is-met .watch-demo__state {
  background: #e7f6f1;
  color: var(--color-teal-500);
}

.watch-demo__token.is-met .watch-demo__bar-fill {
  background: var(--color-teal-500);
}

.watch-demo__token:not(.is-met) {
  border-color: #f3dfb8;
  background: var(--color-amber-50);
}

.watch-demo__token:not(.is-met) .watch-demo__state {
  background: #fff;
  color: var(--color-amber-500);
}

.watch-demo__token:not(.is-met) .watch-demo__bar-fill {
  background: var(--color-amber-500);
}

.watch-demo__token.is-flipped {
  animation: value-bump 300ms var(--ease-out);
}

.watch-demo__foot {
  color: var(--color-ink-faint);
  font-size: 12px;
}

/* ------------------------------------------------------------------ 05 night band */

.night {
  position: relative;
  max-width: 1240px;
  margin: 0 auto;
  overflow: hidden;
  border-radius: var(--radius-xl);
  background: var(--color-navy-950) url("../assets/night.jpg") center bottom / cover no-repeat;
  color: #fff;
}

/* A few extra stars that twinkle on top of the illustration. */
.night__stars {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.night__stars::before,
.night__stars::after {
  position: absolute;
  top: 0;
  left: 0;
  width: 2px;
  height: 2px;
  border-radius: 50%;
  background: transparent;
  content: "";
  box-shadow:
    120px 80px #fff, 340px 40px #cfe0ff, 560px 130px #fff, 780px 60px #fff, 980px 150px #cfe0ff,
    1120px 90px #fff, 220px 210px #cfe0ff, 660px 240px #fff, 900px 280px #fff, 1060px 230px #cfe0ff;
  animation: twinkle 3.2s ease-in-out infinite;
}

.night__stars::after {
  box-shadow:
    60px 160px #fff, 280px 120px #fff, 460px 70px #cfe0ff, 720px 180px #fff, 860px 110px #fff,
    1180px 170px #cfe0ff, 400px 260px #fff, 600px 30px #fff, 1000px 40px #fff;
  animation-delay: 1.6s;
}

.night__inner {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-5);
  padding-top: var(--space-9);
  padding-bottom: var(--space-9);
}

.night__lede {
  max-width: 30rem;
  color: rgba(255, 255, 255, 0.78);
  font-size: var(--text-lg);
}

.digest {
  width: 100%;
  max-width: 340px;
  margin-top: var(--space-4);
  padding: var(--space-4);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-lg);
  background: rgba(4, 6, 46, 0.6);
  backdrop-filter: blur(10px);
}

.digest__head {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
  color: var(--color-blue-400);
  font-size: 12px;
}

/* Tiny clock whose hand turns. */
.digest__clock {
  position: relative;
  width: 12px;
  height: 12px;
  border: 1.5px solid currentColor;
  border-radius: 50%;
}

.digest__clock::after {
  position: absolute;
  top: 1px;
  left: 50%;
  width: 1.5px;
  height: 4px;
  margin-left: -0.75px;
  background: currentColor;
  content: "";
  transform-origin: 50% 100%;
  animation: clock-hand 4s linear infinite;
}

.digest__list {
  display: grid;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.digest__list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 13px;
}

/* ------------------------------------------------------------------ 06 ground rules (black) */

.rules-layout {
  display: grid;
  gap: var(--space-6);
}

@media (min-width: 1040px) {
  .rules-layout {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
    align-items: start;
  }
}

.rules {
  display: grid;
  grid-template-columns: 1fr;
  overflow: hidden;
  border: 1px solid var(--color-black-line);
  border-radius: var(--radius-lg);
}

.rules li {
  padding: var(--space-5);
  border-bottom: 1px solid var(--color-black-line);
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--text-sm);
  transition: background-color 240ms var(--ease-out);
}

.rules li:hover {
  background: rgba(255, 255, 255, 0.03);
}

.rules b {
  position: relative;
  display: block;
  width: fit-content;
  margin-bottom: var(--space-1);
  color: #fff;
  font-family: var(--font-serif);
  font-size: var(--text-xl);
  font-weight: 400;
}

/* Hovering a rule strikes it through: the thing a mind never does. */
.rules b::after {
  position: absolute;
  top: 55%;
  left: 0;
  width: 100%;
  height: 1.5px;
  background: var(--color-blue-400);
  content: "";
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 360ms var(--ease-out);
}

.rules li:hover b::after {
  transform: scaleX(1);
}

@media (min-width: 720px) {
  .rules {
    grid-template-columns: repeat(2, 1fr);
  }

  .rules li:nth-child(odd) {
    border-right: 1px solid var(--color-black-line);
  }

  .rules li:nth-last-child(-n + 2) {
    border-bottom: 0;
  }
}

/* Terminal-style card that checks draft sentences one by one (filter-demo.js). */
.filter-demo {
  overflow: hidden;
  border: 1px solid var(--color-black-line);
  border-radius: var(--radius-lg);
  background: var(--color-black-800);
}

.filter-demo__head {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-black-line);
  color: rgba(255, 255, 255, 0.5);
  font-size: 12px;
}

.filter-demo__dots {
  display: flex;
  gap: 5px;
}

.filter-demo__dots i {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.14);
}

.filter-demo__lines {
  display: grid;
  gap: var(--space-3);
  min-height: 300px;
  padding: var(--space-4);
  font-family: var(--font-mono);
  font-size: 13px;
}

.filter-line {
  display: grid;
  gap: 4px;
  animation: line-in 300ms var(--ease-out);
}

.filter-line__text {
  color: rgba(255, 255, 255, 0.88);
}

.filter-line__text::before {
  margin-right: var(--space-2);
  color: rgba(255, 255, 255, 0.3);
  content: ">";
}

.filter-line__text.is-typing::after {
  display: inline-block;
  width: 7px;
  height: 14px;
  margin-left: 2px;
  background: var(--color-blue-400);
  vertical-align: -2px;
  content: "";
  animation: caret-blink 1s steps(1) infinite;
}

.filter-line--rejected .filter-line__text {
  color: rgba(255, 255, 255, 0.4);
  text-decoration: line-through;
  text-decoration-color: var(--color-amber-500);
}

.filter-line__verdict {
  padding-left: var(--space-4);
  font-size: 12px;
  animation: line-in 240ms var(--ease-out);
}

.filter-line--rejected .filter-line__verdict {
  color: #ffb547;
}

.filter-line--passed .filter-line__verdict {
  color: #5fe0b9;
}

/* ------------------------------------------------------------------ cta */

.cta {
  padding: var(--space-9) 0 calc(var(--space-9) + 40px);
}

.cta__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  max-width: 760px;
  margin: 0 auto;
  padding: var(--space-7) var(--space-5);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  text-align: center;
}

.cta__art {
  width: 96px;
  height: 96px;
  animation: float 5s ease-in-out infinite;
}

.cta__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3);
  margin-top: var(--space-2);
}

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

.site-footer {
  padding: var(--space-6) 0 120px;
  border-top: 1px solid var(--color-line);
  font-size: var(--text-sm);
}

.site-footer__inner {
  display: grid;
  gap: var(--space-3);
}

.site-footer__legal {
  max-width: 48rem;
  color: var(--color-ink-faint);
}

/* ------------------------------------------------------------------ dock */

.dock {
  position: fixed;
  bottom: var(--space-5);
  left: 50%;
  z-index: 30;
  display: flex;
  gap: var(--space-2);
  width: min(560px, calc(100% - 32px));
  padding: 6px 6px 6px 18px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.97);
  box-shadow: var(--shadow-float);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 16px);
  backdrop-filter: blur(12px);
  transition:
    opacity 240ms var(--ease-out),
    transform 240ms var(--ease-out);
}

.dock.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, 0);
}

.dock input {
  flex: 1;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  font-size: var(--text-sm);
}

/* Hand-placed line breaks in headings only make sense on wide screens. */
@media (max-width: 719px) {
  .heading br {
    display: none;
  }
}