/* Numensia site, brand layer of the Numensia design language v1.0. Every colour, size, radius,
   space and duration comes from tokens.css (the design package's numensia.css, unchanged);
   anything that isn't a token is commented. */

@font-face {
  font-family: "Inter";
  src: url("assets/fonts/Inter-latin.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

/* Layout values that change with the breakpoint. */
:root {
  --margin: var(--n-layout-margin-mobile);
  --gutter: var(--n-layout-gutter-mobile);
  --section: var(--n-space-64);
}
@media (min-width: 768px) {
  :root { --margin: var(--n-layout-margin-tablet); --gutter: var(--n-layout-gutter-desktop); --section: var(--n-space-96); }
}
@media (min-width: 1200px) {
  :root { --margin: var(--n-layout-margin-desktop); }
}

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

html {
  color-scheme: light;
  background: var(--n-canvas);
  color: var(--n-text);
  font-family: var(--n-family);
  font-size: var(--n-type-body-size);
  line-height: var(--n-type-body-line);
  font-optical-sizing: auto;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: var(--n-space-96);
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body { margin: 0; background: var(--n-canvas); }
img, video { display: block; max-width: 100%; height: auto; }
h1, h2, h3, p, ul, figure, blockquote { margin: 0; }
a { color: var(--n-link); text-underline-offset: 3px; }
:focus-visible { outline: var(--n-control-focus-width) solid var(--n-focus); outline-offset: var(--n-control-focus-offset); }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.skip {
  position: absolute;
  left: var(--margin);
  top: calc(-1 * var(--n-space-64));
  z-index: 20;
  padding: var(--n-space-12) var(--n-space-16);
  border-radius: var(--n-radius-control);
  background: var(--n-action);
  color: var(--n-on-action);
  font-weight: 500;
  text-decoration: none;
}
.skip:focus { top: var(--n-space-12); }

.container {
  max-width: var(--n-layout-content-max);
  margin: 0 auto;
  padding: 0 var(--margin);
}

/* ---------- type ---------- */

.eyebrow {
  font-size: var(--n-type-eyebrow-size);
  line-height: var(--n-type-eyebrow-line);
  font-weight: var(--n-type-eyebrow-weight);
  letter-spacing: var(--n-type-eyebrow-tracking);
  text-transform: uppercase;
  color: var(--n-text-secondary);
}

.display {
  font-size: var(--n-type-display-mobile-size);
  line-height: var(--n-type-display-mobile-line);
  font-weight: var(--n-type-display-mobile-weight);
  letter-spacing: var(--n-type-display-mobile-tracking);
}
@media (min-width: 768px) {
  .display {
    font-size: var(--n-type-display-size);
    line-height: var(--n-type-display-line);
    font-weight: var(--n-type-display-weight);
    letter-spacing: var(--n-type-display-tracking);
  }
}

h2, .h2 {
  font-size: var(--n-type-h2-size);
  line-height: var(--n-type-h2-line);
  font-weight: var(--n-type-h2-weight);
  letter-spacing: var(--n-type-h2-tracking);
}
h3, .h3 {
  font-size: var(--n-type-h3-size);
  line-height: var(--n-type-h3-line);
  font-weight: var(--n-type-h3-weight);
  letter-spacing: var(--n-type-h3-tracking);
}
.lede {
  /* H3 size at body weight: a short hero paragraph, not a heading. */
  font-size: var(--n-type-h3-size);
  line-height: var(--n-type-h3-line);
  font-weight: var(--n-type-body-weight);
  letter-spacing: var(--n-type-h3-tracking);
  color: var(--n-text-secondary);
}
.body { max-width: var(--n-layout-reading-max-ch); }
.secondary { color: var(--n-text-secondary); }
.caption {
  font-size: var(--n-type-caption-size);
  line-height: var(--n-type-caption-line);
  color: var(--n-text-secondary);
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--n-control-height-default);
  padding: 0 20px; /* handbook: primary button has 20 px horizontal padding */
  border-radius: var(--n-radius-control);
  border: 1px solid transparent;
  font: inherit;
  font-size: var(--n-type-label-size);
  line-height: var(--n-type-label-line);
  font-weight: var(--n-type-label-weight);
  text-decoration: none;
  cursor: pointer;
  transition: background-color var(--n-duration-press) var(--n-ease), border-color var(--n-duration-press) var(--n-ease);
}
.btn--primary { background: var(--n-action); color: var(--n-on-action); }
.btn--primary:hover { background: var(--n-action-hover); }
.btn--primary:disabled { background: var(--n-text-secondary); cursor: progress; }
.btn--secondary { background: var(--n-surface); color: var(--n-text); border-color: var(--n-border-control); }
.btn--secondary:hover { background: var(--n-surface-subtle); }

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--n-canvas);
  border-bottom: 1px solid transparent;
  transition: border-color var(--n-duration-state) var(--n-ease);
}
.site-header.is-scrolled { border-bottom-color: var(--n-border-decorative); }
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--n-space-16);
  min-height: 72px; /* 48 px control plus 12 px clear space above and below */
}
.logo { display: block; padding: var(--n-space-12) 0; } /* clear space: at least 0.5 H around the lockup */
.logo img { width: 280px; }  /* compact lockup at its 280 px minimum */
@media (max-width: 351px) {
  .logo img { width: 240px; } /* wordmark-only (minimum 220 px) where 280 px doesn't fit */
}
.site-header .btn { display: none; }
@media (min-width: 768px) {
  .site-header .btn { display: inline-flex; }
}

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

.hero { padding: var(--n-space-48) 0 var(--section); }
@media (min-width: 768px) { .hero { padding-top: var(--n-space-64); } }
.hero__text { max-width: 760px; } /* keeps the display headline to one or two lines */
.hero .eyebrow { margin-bottom: var(--n-space-16); }
.hero .lede { margin-top: var(--n-space-16); max-width: 34ch; }
.hero__actions { margin-top: var(--n-space-32); }

.trailer { margin-top: var(--n-space-48); }
.trailer__video {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--n-radius-feature);
  background: #121619; /* Night, behind the frame before the poster loads */
}
.trailer .caption { margin-top: var(--n-space-8); }

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

.section { padding: var(--section) 0; }
.section--band { background: var(--n-surface); }
.section-head { max-width: 760px; }
.section-head .eyebrow { margin-bottom: var(--n-space-12); }
.section-head .body { margin-top: var(--n-space-16); }

.feature {
  display: grid;
  gap: var(--n-space-24);
  align-items: center;
  margin-top: var(--n-space-48);
}
.feature__media > img,
.feature__media .gallery__btn { border-radius: var(--n-radius-feature); }
.feature__media > img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; background: var(--n-surface-subtle); }
.feature__media .caption { margin-top: var(--n-space-8); }
.feature__text .eyebrow { margin-bottom: var(--n-space-12); }
.feature__text h3, .feature__text .h3 { margin-bottom: var(--n-space-12); }
.feature__text .body + .body { margin-top: var(--n-space-12); }
@media (min-width: 960px) {
  .feature { grid-template-columns: 7fr 5fr; gap: var(--n-space-48); margin-top: var(--n-space-64); }
  .feature--flip { grid-template-columns: 5fr 7fr; }
  .feature--flip .feature__media { order: 2; }
}

/* A row of smaller captures under a feature. */
.thumbs {
  display: grid;
  gap: var(--gutter);
  margin-top: var(--n-space-24);
}
.thumbs .caption { margin-top: var(--n-space-8); }
@media (min-width: 768px) {
  .thumbs { grid-template-columns: repeat(3, 1fr); }
}

/* ---------- quotes ---------- */

.quote {
  max-width: 900px; /* keeps the quote to a comfortable measure at H2 size */
  padding-left: var(--n-space-24);
  border-left: 2px solid var(--n-text);
}
.quote p {
  font-size: var(--n-type-h3-size);
  line-height: var(--n-type-h3-line);
  font-weight: var(--n-type-body-weight);
  letter-spacing: var(--n-type-h3-tracking);
}
@media (min-width: 768px) {
  .quote p {
    font-size: var(--n-type-h2-size);
    line-height: var(--n-type-h2-line);
    font-weight: var(--n-type-h2-weight);
    letter-spacing: var(--n-type-h2-tracking);
  }
}
.quote figcaption {
  margin-top: var(--n-space-16);
  font-size: var(--n-type-label-size);
  line-height: var(--n-type-label-line);
  font-weight: var(--n-type-label-weight);
  color: var(--n-text-secondary);
}
.thumbs + .quote { margin-top: var(--section); }
.trailer + .quote { margin-top: var(--n-space-64); }

/* ---------- gallery ---------- */

.gallery {
  list-style: none;
  padding: 0;
  margin-top: var(--n-space-48);
  display: grid;
  gap: var(--gutter);
}
.gallery__btn {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  border-radius: var(--n-radius-card);
  overflow: hidden;
  background: var(--n-surface-subtle);
  cursor: zoom-in;
}
.gallery__btn img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.gallery__item--wide .gallery__btn { border-radius: var(--n-radius-feature); }
.gallery .caption { margin-top: var(--n-space-8); }
@media (min-width: 768px) {
  .gallery { grid-template-columns: repeat(3, 1fr); }
  .gallery__item--wide { grid-column: 1 / -1; }
}

/* ---------- waitlist ---------- */

.waitlist__card {
  max-width: 640px; /* one reading column for the form */
  padding: var(--n-space-24);
  border-radius: var(--n-radius-card);
  background: var(--n-surface);
  border: 1px solid var(--n-surface-subtle);
}
@media (min-width: 768px) { .waitlist__card { padding: var(--n-space-48); } }
.waitlist__card .eyebrow { margin-bottom: var(--n-space-12); }
.waitlist__card .body { margin-top: var(--n-space-12); color: var(--n-text-secondary); }

.form { margin-top: var(--n-space-32); display: grid; gap: var(--n-space-24); }
.field { display: grid; gap: var(--n-space-8); border: 0; padding: 0; margin: 0; min-width: 0; }
.field label, .field legend {
  font-size: var(--n-type-label-size);
  line-height: var(--n-type-label-line);
  font-weight: var(--n-type-label-weight);
  padding: 0;
}
.optional { font-weight: var(--n-type-body-weight); color: var(--n-text-secondary); }
.field input[type="email"],
.field input[type="text"] {
  width: 100%;
  min-height: var(--n-control-height-default);
  padding: var(--n-space-12) var(--n-space-16);
  border: 1px solid var(--n-border-control);
  border-radius: var(--n-radius-control);
  background: var(--n-surface);
  color: var(--n-text);
  font: inherit;
  font-size: var(--n-type-body-size);
  line-height: var(--n-type-body-line);
}
.field input::placeholder { color: var(--n-text-secondary); }
.field input[aria-invalid="true"] { border-color: var(--n-danger); }
.field__error { font-size: var(--n-type-label-size); line-height: var(--n-type-label-line); color: var(--n-danger); }
.field__error:empty { display: none; }

.choices { display: flex; flex-wrap: wrap; gap: var(--n-space-8); }
.field--choice legend { margin-bottom: var(--n-space-8); }
.chip { position: relative; display: inline-flex; }
.chip input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.chip span {
  display: inline-flex;
  align-items: center;
  gap: var(--n-space-8);
  min-height: var(--n-control-target-touch);
  padding: 0 var(--n-space-16);
  border: 1px solid var(--n-border-control);
  border-radius: var(--n-radius-control);
  background: var(--n-surface);
  font-size: var(--n-type-label-size);
  line-height: var(--n-type-label-line);
  font-weight: var(--n-type-label-weight);
  cursor: pointer;
  transition: border-color var(--n-duration-press) var(--n-ease), background-color var(--n-duration-press) var(--n-ease);
}
.chip:hover span { background: var(--n-canvas); }
/* Selected: an outline and a check, not colour alone. */
.chip input:checked + span { border-color: var(--n-focus); box-shadow: inset 0 0 0 1px var(--n-focus); }
.chip input:checked + span::before { content: "\2713"; color: var(--n-focus); }
.chip input:focus-visible + span { outline: var(--n-control-focus-width) solid var(--n-focus); outline-offset: var(--n-control-focus-offset); }

.form .btn { justify-self: start; }
.form__fine { font-size: var(--n-type-caption-size); line-height: var(--n-type-caption-line); color: var(--n-text-secondary); }

.form__thanks { margin-top: var(--n-space-32); }
.form__thanks:focus { outline: none; }
.form__thanks p + p { margin-top: var(--n-space-8); color: var(--n-text-secondary); }

/* Honeypot for bots: off-screen, not display:none (some bots skip hidden fields). */
.field--trap {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

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

.site-footer { border-top: 1px solid var(--n-border-decorative); padding: var(--n-space-48) 0; }
.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--n-space-24);
}
.site-footer__by {
  display: flex;
  align-items: center;
  gap: var(--n-space-8);
  color: var(--n-text-secondary);
  font-size: var(--n-type-label-size);
}
.site-footer__by a { display: block; }
.site-footer__by img { height: 17px; width: auto; } /* Sine Wave logo at its drawn height */
.site-footer .caption { flex-basis: 100%; }

/* ---------- lightbox ---------- */

.lightbox {
  max-width: min(var(--n-layout-content-max), 94vw);
  padding: 0;
  border: 0;
  background: transparent;
  color: #F6F5F3; /* Air text on the Night backdrop */
}
.lightbox::backdrop { background: rgba(18, 22, 25, 0.92); } /* Night (#121619) */
.lightbox__img { max-height: 82vh; width: auto; margin: 0 auto; border-radius: var(--n-radius-card); }
.lightbox__cap { margin-top: var(--n-space-12); text-align: center; font-size: var(--n-type-label-size); line-height: var(--n-type-label-line); }
.lightbox__close {
  position: fixed;
  top: var(--n-space-16);
  right: var(--n-space-16);
  width: var(--n-control-target-touch);
  height: var(--n-control-target-touch);
  border: 0;
  border-radius: var(--n-radius-pill); /* physically circular control */
  background: var(--n-surface);
  color: var(--n-text);
  font-size: var(--n-type-h3-size);
  line-height: 1;
  cursor: pointer;
}

/* ---------- quicksilver ---------- */
/* Numensia's material language: things arrive as quicksilver and resolve into the real material.
   main.js lays a silver copy over each capture and opens it once, as the capture scrolls into view.
   Quicksilver colours (#B8C8CC, #F4FBFF) come from the product's spatial palette, used here only to
   depict that material, never as brand accents. */

@property --qs-r {
  syntax: "<percentage>";
  inherits: false;
  initial-value: 0%;
}

.qs-host { position: relative; }
.qs {
  position: absolute;
  inset: 0;
  overflow: hidden;
  border-radius: inherit;
  pointer-events: none;
  background: #B8C8CC;
  --qs-mask: radial-gradient(circle at var(--qs-x, 50%) var(--qs-y, 50%), transparent var(--qs-r), #000 calc(var(--qs-r) + 14%));
  -webkit-mask-image: var(--qs-mask);
  mask-image: var(--qs-mask);
}
.feature__media > .qs { border-radius: var(--n-radius-feature); }
.qs img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(1) contrast(1.55) brightness(1.18);
  mix-blend-mode: luminosity;
}
/* A single highlight that travels across the metal while it resolves. */
.qs::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, transparent 35%, rgba(244, 251, 255, 0.7) 50%, transparent 65%);
  transform: translateX(-70%);
}
/* Slower than the 2D motion tokens on purpose: this is the world's material timing, not a UI
   transition, and it has to be seen to read. Ease in and out so the bloom is visible throughout. */
.qs.is-resolving { animation: qs-resolve 1800ms cubic-bezier(0.45, 0, 0.25, 1) 150ms forwards; }
.qs.is-resolving::after { animation: qs-sheen 1800ms cubic-bezier(0.45, 0, 0.25, 1) forwards; }
@keyframes qs-resolve { to { --qs-r: 100%; } } /* 100% reaches the farthest corner */
@keyframes qs-sheen { to { transform: translateX(70%); } }

/* ---------- reveal on scroll ---------- */

.js .reveal {
  opacity: 0;
  transform: translateY(var(--n-space-8));
  transition: opacity var(--n-duration-surface) var(--n-ease), transform var(--n-duration-surface) var(--n-ease);
}
.js .reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .js .reveal { opacity: 1; transform: none; }
}