:root {
  /* Type */
  --font-headline: "Mozilla Headline", Arial, sans-serif;
  --font-body: "Mozilla Text", Arial, sans-serif;
  --font-mono: "DM Mono", monospace;
  --text-16: 1rem;
  --text-18: 1.125rem;
  --text-20: 1.25rem;
  --text-24: 1.5rem;
  --text-32: 2rem;
  --text-40: 2.5rem;
  --text-48: 3rem;

  /* Weight */
  --weight-regular: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --weight-bold: 700;

  /* Spacing — 4px base */
  --space-4: 0.25rem;
  --space-8: 0.5rem;
  --space-12: 0.75rem;
  --space-16: 1rem;
  --space-24: 1.5rem;
  --space-32: 2rem;
  --space-40: 2.5rem;

  /* Color */
  --color-bg: #F7F7F3;
  --color-dark: #1e1e1e;
  --color-cyan: #00f6f6;
  --color-highlight: #83f8f8;
  --color-cyan-tonal: #dbf4f0;
  --color-cyan-dark: #00717c;
  --color-yellow: #ffd341;
  --color-outline: #e1e1d6;

  --page-pad: clamp(var(--space-16), 4vw, var(--space-40));
  --content-max: 1440px;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--color-dark);
  background: var(--color-bg);
  font-family: var(--font-body);
  font-size: var(--text-16);
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

.page-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  column-gap: var(--space-24);
  width: 100%;
  max-width: var(--content-max);
  margin-inline: auto;
  padding-inline: var(--page-pad);
}

.site-header {
  position: absolute;
  z-index: 2;
  inset: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--content-max);
  height: 96px;
  margin-inline: auto;
  padding: 0 var(--page-pad);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-12);
  font-family: var(--font-headline);
  font-size: var(--text-20);
  font-weight: var(--weight-bold);
  text-decoration: none;
}

.brand > img { display: block; width: 154px; height: auto; }

.brand-mark {
  position: relative;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  background: rgb(255 255 255 / 55%);
}

.brand-mark::before,
.brand-mark::after,
.brand-mark span {
  content: "";
  position: absolute;
  border-radius: 50% 50% 45% 55%;
  transform: rotate(35deg);
}

.brand-mark::before { width: 11px; height: 25px; background: #ff3384; left: 11px; top: 7px; }
.brand-mark::after { width: 10px; height: 24px; background: #5b264d; right: 9px; top: 9px; transform: rotate(-38deg); }
.brand-mark span { width: 7px; height: 22px; background: var(--color-cyan); left: 18px; top: 9px; transform: rotate(4deg); }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: var(--space-8) var(--space-16);
  border: 1px solid transparent;
  font-size: var(--text-16);
  font-weight: var(--weight-medium);
  text-decoration: none;
  transition: transform 160ms ease, background 160ms ease;
}

.button:hover { transform: translateY(-2px); }
.button:focus-visible, input:focus-visible, button:focus-visible { outline: 3px solid var(--color-yellow); outline-offset: 2px; }
.button--cyan { background: var(--color-cyan); }
.button--dark { color: var(--color-bg); background: var(--color-dark); }

.hero {
  position: relative;
  overflow: hidden;
  min-height: 640px;
  padding-top: 268px;
  padding-bottom: 96px;
  background: linear-gradient(to bottom, var(--color-cyan-tonal) 0 96px, transparent 96px);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 96px 0 auto;
  height: 148px;
  background: url("assets/dither.png") repeat-x 0 0 / auto 148px;
  pointer-events: none;
}

.hero__grid { position: relative; z-index: 1; }
.hero__content { grid-column: 1 / span 10; }

h1, h2, h3, p { margin-top: 0; }

h1, h2, h3 {
  font-family: var(--font-headline);
  line-height: 1.08;
}

h1 {
  max-width: 780px;
  margin-bottom: var(--space-32);
  font-size: clamp(var(--text-40), 3.9vw, 3.2rem);
  font-weight: var(--weight-semibold);
  letter-spacing: -0.005em;
  line-height: 1.2;
}

.highlight {
  position: relative;
  z-index: 0;
  white-space: nowrap;
}

.highlight::after {
  content: "";
  position: absolute;
  z-index: -1;
  left: -0.06em;
  right: -0.06em;
  bottom: 0.02em;
  height: 0.58em;
  background: var(--color-highlight);
}

.hero__intro {
  max-width: 590px;
  margin-bottom: 64px;
  font-size: var(--text-20);
  line-height: 1.35;
}

.waitlist { max-width: 620px; }
.waitlist__announcement { margin-bottom: var(--space-16); }
.waitlist__title { display: flex; align-items: center; gap: var(--space-12); }
.waitlist__title label {
  color: var(--color-cyan-dark);
  font-family: var(--font-headline);
  font-size: var(--text-24);
  font-weight: var(--weight-semibold);
  line-height: 1.2;
}
.waitlist__announcement p { max-width: 560px; margin: var(--space-8) 0 0; font-size: var(--text-16); line-height: 1.45; }
.status-badge {
  display: inline-flex;
  flex: 0 0 auto;
  min-height: 28px;
  align-items: center;
  border: 1px solid var(--color-cyan-dark);
  padding: 0 var(--space-8);
  color: var(--color-cyan-dark);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: var(--weight-medium);
  text-transform: uppercase;
}

.waitlist__form { display: flex; border: 1px solid var(--color-outline); background: var(--color-bg); padding: var(--space-4); }
.waitlist__form:focus-within { outline: 3px solid var(--color-yellow); outline-offset: 2px; }
.waitlist input { min-width: 0; flex: 1; border: 0; background: transparent; padding: 0 var(--space-12); font: inherit; }
.waitlist input:focus-visible { outline: none; }
.waitlist button { min-height: 40px; border: 0; padding: var(--space-8) var(--space-16); color: var(--color-bg); background: var(--color-dark); font: inherit; font-size: var(--text-16); cursor: pointer; }
.waitlist button:disabled { cursor: wait; opacity: 0.62; }
.form-status { min-height: 1.45em; margin: var(--space-8) 0 0; color: var(--color-cyan-dark); font-size: 0.875rem; line-height: 1.45; }

.frame { width: 100%; border-top: 1px solid var(--color-outline); border-bottom: 1px solid var(--color-outline); }

.section-heading {
  max-width: var(--content-max);
  align-items: center;
  min-height: 128px;
  margin-inline: auto;
  padding-inline: var(--space-24);
  border-inline: 1px solid var(--color-outline);
  border-bottom: 1px solid var(--color-outline);
}

.section-heading h2 { grid-column: 1 / span 4; margin: 0; font-size: var(--text-32); }
.section-heading p { grid-column: 5 / -1; margin: 0; font-size: var(--text-24); }

.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); max-width: var(--content-max); margin-inline: auto; border-inline: 1px solid var(--color-outline); border-bottom: 1px solid var(--color-outline); }
.service-card { min-height: 310px; padding: var(--space-32) var(--space-24); }
.service-card + .service-card { border-left: 1px solid var(--color-outline); }
.service-card__number { margin-bottom: var(--space-4); color: var(--color-cyan-dark); font-family: var(--font-mono); font-size: var(--text-24); font-weight: var(--weight-semibold); }
.service-card h3 { margin-bottom: var(--space-8); font-size: var(--text-24); }
.service-card__tags { margin-bottom: var(--space-24); color: var(--color-cyan-dark); font-weight: var(--weight-medium); }
.service-card__tags span + span::before { content: "•"; margin-inline: var(--space-8); }
.service-card__body { max-width: 340px; margin: 0; }

.open-weights { max-width: var(--content-max); min-height: 300px; align-items: start; padding: 72px var(--space-24); border-inline: 1px solid var(--color-outline); border-bottom: 1px solid var(--color-outline); }
.open-weights h2 { grid-column: 1 / span 4; font-size: var(--text-32); }
.open-weights p { grid-column: 5 / -1; max-width: 690px; margin: 0; font-size: var(--text-24); line-height: 1.5; }

.wip {
  display: grid;
  grid-template-columns: 7fr 5fr;
  max-width: var(--content-max);
  min-height: 600px;
  margin-inline: auto;
  border-inline: 1px solid var(--color-outline);
  border-bottom: 1px solid var(--color-outline);
}

.wip > * { min-width: 0; }
.wip__copy { display: grid; grid-template-rows: auto auto 1fr; min-width: 0; }
.wip__heading { padding: var(--space-32) var(--space-24) 0; }
.wip__heading > div { display: flex; align-items: baseline; justify-content: space-between; gap: var(--space-24); }
.wip__heading { display: grid; grid-template-columns: 1fr auto; align-content: start; column-gap: var(--space-24); }
.wip__heading h2 { margin-bottom: var(--space-16); font-size: var(--text-32); }
.wip__heading > p { margin: var(--space-8) 0 0; color: var(--color-cyan-dark); font-size: var(--text-18); font-weight: var(--weight-semibold); }
.wip__intro { grid-column: 1 / -1; max-width: 690px; margin: 0; padding: 0 var(--space-24) var(--space-32); font-size: var(--text-24); line-height: 1.5; }
.status-badge--ready { border-color: var(--color-cyan-dark); color: var(--color-bg); background: var(--color-cyan-dark); }
.optimization-list { display: grid; grid-template-rows: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--color-outline); }
.optimization-item { display: flex; min-height: 120px; flex-direction: column; justify-content: space-between; gap: var(--space-16); padding: var(--space-24); }
.optimization-item + .optimization-item { border-top: 1px solid var(--color-outline); }
.optimization-item__heading { display: flex; align-items: flex-start; justify-content: space-between; gap: var(--space-16); }
.status-stack { display: grid; flex: 0 0 auto; justify-items: end; gap: var(--space-4); }
.optimization-item h3 { margin: 0; font-family: var(--font-headline); font-size: var(--text-20); line-height: 1.25; }
.optimization-item p { display: flex; align-items: baseline; justify-content: space-between; gap: var(--space-16); margin: 0; color: var(--color-cyan-dark); font-family: var(--font-mono); font-size: var(--text-16); }
.optimization-item p strong { font-family: var(--font-headline); font-size: var(--text-32); line-height: 1; }
.wip__media { display: grid; min-width: 0; grid-template-rows: repeat(2, minmax(0, 1fr)); border-left: 1px solid var(--color-outline); background: var(--color-dark); }
.video-demo { position: relative; min-width: 0; min-height: 0; overflow: hidden; }
.video-demo + .video-demo { border-top: 1px solid var(--color-outline); }
.video-demo video { display: block; width: 100%; max-width: 100%; height: 100%; min-width: 0; min-height: 0; object-fit: cover; }
.sound-toggle {
  position: absolute;
  right: var(--space-16);
  bottom: var(--space-16);
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: var(--space-8);
  border: 1px solid rgba(255, 255, 255, 0.72);
  padding: 0 var(--space-16);
  color: #fff;
  background: rgba(29, 29, 29, 0.88);
  font: inherit;
  font-size: var(--text-16);
  font-weight: var(--weight-semibold);
  cursor: pointer;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.sound-toggle:hover { background: var(--color-dark); }
.sound-toggle[aria-pressed="true"] { color: var(--color-dark); background: var(--color-cyan); border-color: var(--color-cyan); }
.sound-toggle__icon { width: 10px; height: 10px; border-radius: 50%; background: currentColor; box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.2); }
.sound-toggle[aria-pressed="true"] .sound-toggle__icon { box-shadow: 0 0 0 4px rgba(29, 29, 29, 0.12); }

.partners { max-width: var(--content-max); min-height: 230px; align-items: start; padding: 56px var(--space-24); border-inline: 1px solid var(--color-outline); }
.partner-group--lead { grid-column: 1 / span 3; }
.partner-group--collaborators { grid-column: 4 / -1; }
.eyebrow { margin-bottom: var(--space-24); color: #8abdc1; font-family: var(--font-mono); font-size: var(--text-18); font-weight: var(--weight-medium); }
.placeholder-logo { display: inline-flex; min-width: 150px; height: 48px; align-items: center; justify-content: center; border: 1px dashed var(--color-outline); color: #72726c; font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.08em; text-transform: uppercase; }
.conviction-logo { display: block; width: 150px; height: auto; object-fit: contain; }
.logos { display: grid; grid-template-columns: 2fr 1fr 1.15fr; align-items: center; gap: clamp(var(--space-24), 5vw, 72px); }
.logos img { display: block; width: 100%; max-width: 210px; max-height: 58px; object-fit: contain; }
.logos img:nth-child(2) { max-width: 125px; }
.logos img:nth-child(3) { max-width: 145px; }

.cta { min-height: 430px; place-items: center; text-align: center; }
.cta > div { grid-column: 2 / -2; }
.cta h2 { margin-bottom: var(--space-32); font-size: clamp(var(--text-32), 4vw, var(--text-40)); font-weight: var(--weight-regular); }
.cta h2 { font-family: var(--font-body); }

.site-footer { display: flex; align-items: center; justify-content: space-between; min-height: 76px; padding: var(--space-24) max(var(--page-pad), calc((100vw - var(--content-max)) / 2 + var(--page-pad))); color: var(--color-bg); background: var(--color-dark); }
.site-footer p { margin: 0; }

@media (max-width: 820px) {
  .hero { min-height: 600px; padding-top: 268px; }
  .hero__content { grid-column: 1 / -1; }
  .section-heading { padding-top: var(--space-32); padding-bottom: var(--space-32); }
  .section-heading h2, .section-heading p, .open-weights h2, .open-weights p { grid-column: 1 / -1; }
  .section-heading h2, .open-weights h2 { margin-bottom: var(--space-16); }
  .service-grid { grid-template-columns: 1fr; }
  .service-card { min-height: auto; }
  .service-card + .service-card { border-left: 0; border-top: 1px solid var(--color-outline); }
  .open-weights { min-height: auto; padding-top: var(--space-40); padding-bottom: var(--space-40); }
  .wip { grid-template-columns: 1fr; }
  .wip__copy { min-height: 500px; }
  .wip__media { grid-template-columns: repeat(2, 1fr); grid-template-rows: 260px; border-top: 1px solid var(--color-outline); border-left: 0; }
  .video-demo + .video-demo { border-top: 0; border-left: 1px solid var(--color-outline); }
  .partner-group--lead { grid-column: 1 / span 4; }
  .partner-group--collaborators { grid-column: 5 / -1; }
  .logos { grid-template-columns: 1fr; gap: var(--space-24); }
}

@media (max-width: 560px) {
  h1 { font-size: var(--text-40); }
  .site-header { padding-top: var(--space-16); }
  .brand { font-size: var(--text-18); }
  .brand-mark { width: 36px; height: 36px; }
  .site-header { height: 80px; padding-top: 0; }
  .hero { padding-top: 222px; padding-bottom: 64px; background: linear-gradient(to bottom, var(--color-cyan-tonal) 0 80px, transparent 80px); }
  .hero::before { inset-block-start: 80px; height: 118px; background-size: auto 118px; }
  .hero__intro { margin-bottom: var(--space-40); font-size: var(--text-18); }
  .waitlist__form { display: grid; gap: var(--space-4); }
  .waitlist input { min-height: 44px; }
  .waitlist__title { align-items: flex-start; flex-direction: column; }
  .waitlist__title label { font-size: var(--text-20); }
  .partners { gap: var(--space-40) 0; }
  .partner-group--lead, .partner-group--collaborators { grid-column: 1 / -1; }
  .logos { grid-template-columns: repeat(3, 1fr); gap: var(--space-16); }
  .logos img, .logos img:nth-child(2), .logos img:nth-child(3) { max-width: 100%; max-height: 42px; }
  .cta { min-height: 340px; }
  .cta > div { grid-column: 1 / -1; }
  .site-footer { flex-direction: column; align-items: flex-start; gap: var(--space-8); }
  .wip__heading { grid-template-columns: 1fr; }
  .wip__heading > p { margin-top: 0; }
  .wip__intro { font-size: var(--text-24); }
  .optimization-item { min-height: 132px; }
  .optimization-item__heading, .optimization-item p { align-items: flex-start; flex-direction: column; }
  .status-stack { justify-items: start; }
  .wip__media { grid-template-columns: 1fr; grid-template-rows: repeat(2, 220px); }
  .video-demo + .video-demo { border-top: 1px solid var(--color-outline); border-left: 0; }
  .sound-toggle { right: var(--space-12); bottom: var(--space-12); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; }
}