:root {
  --ink: #03080a;
  --deep: #061318;
  --panel: #0a1b20;
  --panel-soft: #0d242a;
  --cyan: #3ee9ef;
  --cyan-soft: #a2f9f7;
  --green: #8ffc72;
  --paper: #ecf8f6;
  --muted: #95abae;
  --line: rgba(121, 225, 226, 0.18);
  --serif: Georgia, "Times New Roman", serif;
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.6;
  overflow-x: hidden;
}

a { color: inherit; }

button, a { -webkit-tap-highlight-color: transparent; }

.site-shell {
  min-height: 100vh;
  background:
    radial-gradient(circle at 80% 13%, rgba(25, 172, 181, 0.08), transparent 32rem),
    var(--ink);
}

.topbar {
  position: absolute;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  min-height: 5.4rem;
  padding: 1rem clamp(1.25rem, 4vw, 4.75rem);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(180deg, rgba(1, 7, 9, 0.88), rgba(1, 7, 9, 0));
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  width: fit-content;
  color: var(--paper);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 750;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.brand-mark {
  color: var(--cyan);
  filter: drop-shadow(0 0 0.65rem rgba(62, 233, 239, 0.8));
  transform: rotate(45deg);
}

.desktop-nav { display: flex; align-items: center; gap: 2rem; }

.desktop-nav a,
.nav-cta {
  color: #c5d8d9;
  font-size: 0.79rem;
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
  transition: color 180ms ease;
}

.desktop-nav a:hover, .nav-cta:hover { color: var(--cyan-soft); }

.nav-cta {
  justify-self: end;
  padding: 0.72rem 1.2rem;
  border: 1px solid rgba(62, 233, 239, 0.45);
  border-radius: 999px;
}

.hero {
  position: relative;
  min-height: min(960px, 100svh);
  padding: 9.5rem clamp(1.25rem, 6vw, 7rem) 5rem;
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(24rem, 1.08fr);
  align-items: center;
  gap: clamp(2rem, 5vw, 7rem);
  isolation: isolate;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  z-index: -4;
  inset: 0;
  background: url("https://d8j0ntlcm91z4.cloudfront.net/user_3E0xROkZP2I3l4B3ARB7DILU68K/hf_20260922_034830_962c7ae8-f15a-4f7d-aeed-c4349bd61b53.png") center / cover no-repeat;
  filter: saturate(0.8) brightness(0.68);
  transform: scale(1.025);
}

.hero-vignette {
  position: absolute;
  z-index: -3;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(1, 7, 9, 0.97) 0%, rgba(2, 10, 13, 0.88) 33%, rgba(2, 10, 13, 0.12) 68%, rgba(2, 8, 10, 0.58) 100%),
    linear-gradient(0deg, #03080a 0%, transparent 22%, rgba(0, 0, 0, 0.14) 75%, rgba(0, 0, 0, 0.5) 100%);
}

.stars { position: absolute; z-index: -2; inset: 0; pointer-events: none; opacity: 0.55; }
.stars::before, .stars::after {
  content: "";
  position: absolute;
  width: 2px;
  height: 2px;
  border-radius: 50%;
  background: white;
  box-shadow: 5vw 17vh #fff, 11vw 32vh #7df2f0, 17vw 12vh #fff, 28vw 24vh #fff, 37vw 9vh #8feeea, 49vw 17vh #fff, 65vw 13vh #fff, 74vw 28vh #74e6ec, 88vw 18vh #fff, 94vw 37vh #fff;
  animation: twinkle 5s ease-in-out infinite alternate;
}
.stars::after { transform: translateY(18rem) translateX(3rem); opacity: 0.45; animation-delay: 1.4s; }
.stars-b { transform: scale(0.7) translateX(13rem); opacity: 0.35; }

@keyframes twinkle { from { opacity: 0.25; } to { opacity: 0.9; } }

.hero-copy { max-width: 42rem; }

.eyebrow {
  margin: 0 0 1.2rem;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--cyan-soft);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.19em;
  text-transform: uppercase;
}

.eyebrow span { display: inline-block; width: 2.2rem; height: 1px; background: var(--cyan); box-shadow: 0 0 1rem var(--cyan); }

h1, h2 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 400;
  line-height: 0.91;
  letter-spacing: -0.045em;
}

h1 { font-size: clamp(4.5rem, 7.5vw, 8.4rem); }
h2 { font-size: clamp(3.4rem, 6vw, 6.8rem); }
h1 em, h2 em { color: var(--cyan-soft); font-weight: 400; }

.hero-lede {
  max-width: 36rem;
  margin: 2rem 0 0;
  color: #b3c8c9;
  font-size: clamp(1rem, 1.5vw, 1.17rem);
  line-height: 1.75;
}

.hero-actions { margin-top: 2rem; display: flex; align-items: center; gap: 1.6rem; flex-wrap: wrap; }

.button {
  min-height: 3.55rem;
  padding: 0.9rem 1.6rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 0.2rem;
  font: inherit;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-decoration: none;
  text-transform: uppercase;
}

.button-primary {
  color: #031012;
  background: linear-gradient(135deg, #b4ffef, var(--cyan));
  box-shadow: 0 0 2.6rem rgba(62, 233, 239, 0.23);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.button-primary:hover { transform: translateY(-2px); box-shadow: 0 0 3rem rgba(62, 233, 239, 0.38); }

.text-link { color: #d4e6e6; font-size: 0.84rem; font-weight: 650; text-decoration-color: rgba(62, 233, 239, 0.45); text-underline-offset: 0.4rem; }
.text-link span { color: var(--cyan); margin-left: 0.25rem; }

.hero-proof { margin-top: 3.1rem; display: flex; flex-wrap: wrap; gap: 0.65rem; }
.hero-proof span { padding: 0.42rem 0.75rem; border: 1px solid rgba(255,255,255,0.12); border-radius: 999px; color: #a9bec0; background: rgba(4,16,19,0.55); backdrop-filter: blur(10px); font-size: 0.74rem; }

.product-stage {
  position: relative;
  justify-self: end;
  width: min(100%, 42rem);
  aspect-ratio: 1 / 1;
  display: grid;
  place-items: center;
}

.product-stage::before {
  content: "";
  position: absolute;
  width: 78%;
  aspect-ratio: 1;
  border: 1px solid rgba(138, 246, 244, 0.34);
  border-radius: 50%;
  box-shadow:
    0 0 0 1.2rem rgba(62, 233, 239, 0.025),
    0 0 5rem rgba(62, 233, 239, 0.16),
    inset 0 0 4rem rgba(15, 70, 77, 0.2);
}

.product-stage::after {
  content: "PRODUCT VIEW";
  position: absolute;
  top: 10%;
  right: 5%;
  color: rgba(186, 235, 235, 0.64);
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.19em;
  writing-mode: vertical-rl;
}

.stage-halo {
  position: absolute;
  z-index: -1;
  width: 86%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(219, 255, 252, 0.2), rgba(61, 226, 229, 0.15) 43%, transparent 70%);
  filter: blur(0.4rem);
  animation: breathe 4s ease-in-out infinite alternate;
}

@keyframes breathe { to { transform: scale(1.08); opacity: 0.72; } }

.product-stage img {
  position: relative;
  z-index: 1;
  width: 76%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 50%;
  border: 1px solid rgba(228, 255, 252, 0.5);
  background: #eef1f1;
  filter: contrast(1.03) saturate(0.96) drop-shadow(0 2.5rem 3rem rgba(0, 0, 0, 0.72));
  box-shadow: inset 0 0 3rem rgba(255, 255, 255, 0.25);
}

.product-caption {
  position: absolute;
  bottom: 9%;
  right: 3%;
  padding: 0.78rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  border: 1px solid var(--line);
  background: rgba(3, 13, 16, 0.74);
  backdrop-filter: blur(16px);
  color: #cbe0e0;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.pulse { width: 0.48rem; height: 0.48rem; border-radius: 50%; background: var(--green); box-shadow: 0 0 0.8rem var(--green); }

.scroll-cue {
  position: absolute;
  left: clamp(1.25rem, 6vw, 7rem);
  bottom: 1.8rem;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: #769094;
  font-size: 0.67rem;
  letter-spacing: 0.17em;
  text-decoration: none;
  text-transform: uppercase;
}
.scroll-cue i { display: block; width: 3rem; height: 1px; background: #4a666a; position: relative; }
.scroll-cue i::after { content: ""; position: absolute; right: 0; top: -2px; width: 5px; height: 5px; border-right: 1px solid #6f9296; border-bottom: 1px solid #6f9296; transform: rotate(-45deg); }

.experience {
  position: relative;
  padding: clamp(6rem, 11vw, 10rem) clamp(1.25rem, 6vw, 7rem);
  background:
    radial-gradient(circle at 12% 20%, rgba(24, 110, 118, 0.18), transparent 27rem),
    linear-gradient(180deg, #03080a, #061217 52%, #03090b);
  overflow: hidden;
}

.experience::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.12;
  background-image: repeating-linear-gradient(120deg, transparent 0 18px, rgba(106, 225, 222, 0.13) 19px, transparent 20px 38px);
  mask-image: linear-gradient(90deg, black, transparent 60%);
}

.section-heading { position: relative; max-width: 57rem; }
.section-heading p:last-child { max-width: 41rem; margin: 2rem 0 0; color: var(--muted); font-size: 1.05rem; }

.flight-path { height: 6rem; margin: 2rem 0 0; position: relative; }
.flight-path::before { content: ""; position: absolute; left: 8%; right: 8%; top: 50%; border-top: 1px dashed rgba(75,222,224,.28); transform: rotate(-1.5deg); }
.flight-path span { position: absolute; top: calc(50% - .25rem); width: .5rem; height: .5rem; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 1rem var(--cyan); }
.flight-path span:nth-child(1) { left: 9%; }.flight-path span:nth-child(2) { left: 49%; }.flight-path span:nth-child(3) { right: 9%; }

.feature-grid { position: relative; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.feature-card { min-height: 20rem; padding: 2rem; border: 1px solid var(--line); background: linear-gradient(145deg, rgba(13, 34, 39, 0.9), rgba(6, 20, 24, 0.68)); backdrop-filter: blur(10px); }
.feature-card-raised { transform: translateY(-2.2rem); border-color: rgba(77, 230, 232, 0.36); box-shadow: 0 1.5rem 4rem rgba(0,0,0,.25); }
.feature-number { color: #47656a; font-size: .73rem; letter-spacing: .17em; }
.feature-icon { margin: 3rem 0 1.2rem; color: var(--cyan); font-size: 2rem; text-shadow: 0 0 1.2rem rgba(62,233,239,.8); }
.feature-card h3 { margin: 0; font-family: var(--serif); font-size: 1.65rem; font-weight: 400; }
.feature-card p { margin: .8rem 0 0; color: var(--muted); font-size: .94rem; }

.projection-showcase {
  position: relative;
  margin-top: clamp(4rem, 8vw, 8rem);
}

.projection-room {
  position: relative;
  margin: 0;
  min-height: clamp(28rem, 62vw, 52rem);
  overflow: hidden;
  border: 1px solid rgba(102, 237, 237, 0.2);
  background: #061419;
  box-shadow: 0 2rem 7rem rgba(0, 0, 0, 0.45);
}

.projection-room::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 42%, rgba(2, 8, 10, 0.12) 58%, rgba(2, 8, 10, 0.9) 100%);
}

.projection-room img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.projection-room figcaption {
  position: absolute;
  z-index: 2;
  left: clamp(1.25rem, 4vw, 3rem);
  right: clamp(1.25rem, 4vw, 3rem);
  bottom: clamp(1.25rem, 4vw, 3rem);
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 2rem;
}

.projection-room figcaption span {
  color: var(--cyan-soft);
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.projection-room figcaption strong {
  max-width: 28rem;
  font-family: var(--serif);
  font-size: clamp(1.55rem, 2.8vw, 2.7rem);
  font-weight: 400;
  line-height: 1.1;
  text-align: right;
  text-shadow: 0 0.2rem 1.4rem rgba(0, 0, 0, 0.9);
}

.projection-intro {
  margin: clamp(3.5rem, 7vw, 6rem) 0 2.2rem;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(2rem, 7vw, 7rem);
  align-items: end;
}

.projection-intro h3 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(3rem, 5vw, 5.8rem);
  font-weight: 400;
  line-height: 0.94;
  letter-spacing: -0.04em;
}

.projection-intro h3 em { color: var(--cyan-soft); font-weight: 400; }

.projection-intro > p {
  margin: 0 0 0.4rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.projection-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.projection-card {
  margin: 0;
  border: 1px solid var(--line);
  background: linear-gradient(145deg, rgba(13, 34, 39, 0.92), rgba(5, 18, 22, 0.82));
  overflow: hidden;
  transition: transform 220ms ease, border-color 220ms ease, box-shadow 220ms ease;
}

.projection-card:hover {
  transform: translateY(-0.35rem);
  border-color: rgba(88, 237, 238, 0.5);
  box-shadow: 0 1.6rem 3.5rem rgba(0, 0, 0, 0.34);
}

.projection-card-featured { border-color: rgba(91, 235, 237, 0.38); }

.projection-card-image {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: #071419;
}

.projection-card-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(1, 7, 9, 0.58));
  pointer-events: none;
}

.projection-card-image img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  transition: transform 600ms cubic-bezier(.2,.7,.2,1);
}

.projection-card:hover img { transform: scale(1.025); }

.projection-card-image span {
  position: absolute;
  z-index: 2;
  top: 1rem;
  left: 1rem;
  min-width: 2.3rem;
  min-height: 2.3rem;
  display: grid;
  place-items: center;
  border: 1px solid rgba(137, 247, 245, 0.45);
  border-radius: 50%;
  color: var(--cyan-soft);
  background: rgba(3, 12, 15, 0.68);
  backdrop-filter: blur(8px);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
}

.projection-card figcaption { padding: 1.25rem; }
.projection-card figcaption strong { display: block; font-family: var(--serif); font-size: 1.35rem; font-weight: 400; }
.projection-card figcaption small { display: block; margin-top: 0.3rem; color: #789296; font-size: 0.76rem; }

.details {
  position: relative;
  min-height: 43rem;
  padding: clamp(6rem, 10vw, 9rem) clamp(1.25rem, 8vw, 9rem);
  display: grid;
  place-items: center;
  overflow: hidden;
  background:
    radial-gradient(circle at 86% 30%, rgba(41, 175, 181, 0.14), transparent 28rem),
    radial-gradient(circle at 10% 78%, rgba(51, 116, 125, 0.12), transparent 25rem),
    linear-gradient(145deg, #06181d, #030b0e 64%);
}
.details::before {
  content: "";
  position: absolute;
  inset: 1.5rem;
  border: 1px solid rgba(89, 227, 229, 0.13);
  pointer-events: none;
}
.details::after {
  content: "";
  position: absolute;
  width: 32rem;
  aspect-ratio: 1;
  right: -11rem;
  top: -15rem;
  border: 1px solid rgba(72, 229, 232, 0.16);
  border-radius: 50%;
  box-shadow: 0 0 6rem rgba(62, 233, 239, 0.06), inset 0 0 6rem rgba(62, 233, 239, 0.04);
}
.details-copy { position: relative; z-index: 2; width: min(100%, 78rem); }
.details-copy h2 { font-size: clamp(3.2rem, 5vw, 5.8rem); }
.details-heading { display: grid; grid-template-columns: 1.35fr .65fr; gap: clamp(2rem, 8vw, 8rem); align-items: end; }
.details-heading > p { margin: 0 0 .5rem; max-width: 24rem; color: var(--muted); font-size: 1rem; }
.details-body { margin-top: clamp(3rem, 6vw, 5rem); display: grid; grid-template-columns: 1.25fr .75fr; gap: clamp(2rem, 7vw, 7rem); align-items: center; }
.detail-list { border-top: 1px solid var(--line); }
.detail-row { padding: 1rem 0; display: flex; justify-content: space-between; gap: 1rem; border-bottom: 1px solid var(--line); }
.detail-row span { color: #708b8f; font-size: .76rem; letter-spacing: .12em; text-transform: uppercase; }
.detail-row strong { color: #cfdfdf; font-size: .9rem; font-weight: 600; text-align: right; }
.details-callout { padding: 2rem; border-left: 1px solid rgba(88, 235, 236, .4); background: linear-gradient(90deg, rgba(57, 193, 199, .08), transparent); }
.details-callout span { color: var(--cyan); font-size: 1.6rem; text-shadow: 0 0 1rem rgba(62, 233, 239, .72); }
.details-callout p { margin: 1rem 0 0; color: #8ca5a8; font-size: .9rem; }

.buy {
  position: relative;
  min-height: 48rem;
  padding: clamp(5rem, 9vw, 8rem) clamp(1.25rem, 6vw, 7rem);
  background:
    radial-gradient(circle at 16% 38%, rgba(41, 178, 184, 0.13), transparent 31rem),
    linear-gradient(145deg, #07191e, #02080a 64%);
  overflow: hidden;
}
.buy::before { content: ""; position: absolute; inset: 2rem; border: 1px solid rgba(78, 225, 228, 0.11); clip-path: polygon(2rem 0, calc(100% - 2rem) 0, 100% 2rem, 100% calc(100% - 2rem), calc(100% - 2rem) 100%, 2rem 100%, 0 calc(100% - 2rem), 0 2rem); pointer-events: none; }
.checkout-shell { position: relative; z-index: 2; width: min(100%, 82rem); margin: 0 auto; display: grid; grid-template-columns: 1.08fr .92fr; gap: clamp(2.5rem, 7vw, 7rem); align-items: center; }
.checkout-gallery { min-width: 0; }
.checkout-main-image { position: relative; aspect-ratio: 1 / 1; border: 1px solid rgba(111, 231, 231, .23); overflow: hidden; background: #071419; box-shadow: 0 2rem 5rem rgba(0,0,0,.35); }
.checkout-main-image::after { content: ""; position: absolute; inset: 0; border: 1px solid rgba(255,255,255,.04); pointer-events: none; }
.checkout-main-image > img { width: 100%; height: 100%; display: block; object-fit: cover; transition: opacity 180ms ease, transform 450ms cubic-bezier(.2,.7,.2,1); }
.checkout-main-image.is-changing > img { opacity: .32; transform: scale(.985); }
.checkout-image-label { position: absolute; left: 1rem; bottom: 1rem; padding: .55rem .75rem; border: 1px solid rgba(137,247,245,.28); background: rgba(2,10,12,.7); backdrop-filter: blur(10px); color: #b7d5d6; font-size: .65rem; font-weight: 700; letter-spacing: .15em; text-transform: uppercase; }
.checkout-thumbnails { margin-top: .8rem; display: grid; grid-template-columns: repeat(3, 1fr); gap: .65rem; }
.checkout-thumb { position: relative; padding: 0; aspect-ratio: 1; border: 1px solid rgba(118,203,204,.17); background: #071318; cursor: pointer; overflow: hidden; opacity: .64; transition: opacity 180ms ease, border-color 180ms ease, transform 180ms ease; }
.checkout-thumb:hover { opacity: .88; transform: translateY(-2px); }
.checkout-thumb.is-active { opacity: 1; border-color: var(--cyan); box-shadow: 0 0 0 1px rgba(62,233,239,.16), 0 0 1.6rem rgba(62,233,239,.12); }
.checkout-thumb img { width: 100%; height: 100%; display: block; object-fit: cover; }
.checkout-info { padding: 1rem 0; }
.checkout-info h2 { font-size: clamp(3.7rem, 5.4vw, 6.4rem); }
.preorder-banner { margin-top: 1.6rem; padding: .9rem 1rem; display: flex; align-items: center; gap: .8rem; border: 1px solid rgba(101, 235, 236, .26); background: linear-gradient(90deg, rgba(48, 187, 193, .12), rgba(16, 50, 56, .03)); }
.preorder-banner > span { flex: 0 0 auto; padding: .36rem .58rem; border-radius: .2rem; color: #031012; background: var(--cyan); font-size: .65rem; font-weight: 850; letter-spacing: .12em; text-transform: uppercase; box-shadow: 0 0 1.2rem rgba(62,233,239,.2); }
.preorder-banner p { margin: 0; color: #a9c0c1; font-size: .76rem; line-height: 1.4; }
.checkout-price-row { margin-top: 2rem; padding: 1rem 0; display: flex; justify-content: space-between; align-items: center; gap: 1rem; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.checkout-price-row > div { display: flex; align-items: baseline; gap: 1rem; }
.checkout-price-row > div span { color: #708b8f; font-size: .7rem; letter-spacing: .12em; text-transform: uppercase; }
.checkout-price-row strong { color: #d5e7e7; font-family: var(--serif); font-size: 1.4rem; font-weight: 400; }
.shipping-pill { padding: .45rem .7rem; border: 1px solid rgba(91,229,231,.3); border-radius: 999px; color: var(--cyan-soft); font-size: .68rem; letter-spacing: .08em; text-transform: uppercase; }
.checkout-description { margin: 1.5rem 0; color: #91aaad; font-size: .98rem; }
.checkout-facts { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.checkout-facts li { padding: .72rem 0; display: flex; justify-content: space-between; gap: 1rem; border-bottom: 1px solid var(--line); }
.checkout-facts li span { color: #6f898d; font-size: .8rem; }
.checkout-facts li strong { color: #bed0d1; font-size: .8rem; font-weight: 650; text-align: right; }
.button-disabled { color: #a9bbbb; border-color: rgba(255,255,255,.16); background: rgba(255,255,255,.06); cursor: not-allowed; }
.checkout-button { width: 100%; margin-top: 1.5rem; }
.checkout-assurance { margin-top: .9rem; display: flex; justify-content: space-between; gap: 1rem; color: #617c80; font-size: .68rem; }

.faq { padding: clamp(6rem, 10vw, 9rem) clamp(1.25rem, 6vw, 7rem); display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(3rem, 8vw, 8rem); background: #03090b; }
.faq-heading h2 { font-size: clamp(3.4rem, 5vw, 5.4rem); }
.accordion { border-top: 1px solid var(--line); }
.accordion details { border-bottom: 1px solid var(--line); }
.accordion summary { padding: 1.25rem 0; display: flex; justify-content: space-between; gap: 1rem; color: #d0e0e0; cursor: pointer; list-style: none; font-size: 1rem; }
.accordion summary::-webkit-details-marker { display: none; }
.accordion summary span { color: var(--cyan); font-size: 1.2rem; transition: transform 180ms ease; }
.accordion details[open] summary span { transform: rotate(45deg); }
.accordion p { margin: -.2rem 2rem 1.4rem 0; color: #799296; font-size: .92rem; }

footer { padding: 2rem clamp(1.25rem, 6vw, 7rem); display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; border-top: 1px solid rgba(255,255,255,.08); background: #020607; color: #688084; }
footer p { margin: 0; font-size: .76rem; }
footer > p:not(.copyright) { text-align: center; font-family: var(--serif); font-style: italic; font-size: .95rem; }
.copyright { justify-self: end; }

.reveal { opacity: 0; transform: translateY(1.25rem); transition: opacity 800ms ease, transform 800ms cubic-bezier(.2,.7,.2,1); }
.reveal.is-visible { opacity: 1; transform: none; }
.reveal-delay { transition-delay: 130ms; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  .reveal { opacity: 1; transform: none; }
}

@media (max-width: 900px) {
  .topbar { grid-template-columns: 1fr auto; }
  .desktop-nav { display: none; }
  .hero { min-height: auto; grid-template-columns: 1fr; padding-top: 8.5rem; padding-bottom: 6rem; }
  .hero-background { background-position: 64% center; }
  .hero-vignette { background: linear-gradient(180deg, rgba(1,7,9,.82), rgba(1,7,9,.72) 46%, #03080a 100%); }
  .hero-copy { position: relative; z-index: 3; }
  h1 { font-size: clamp(4rem, 15vw, 6.7rem); }
  .product-stage { justify-self: center; width: min(100%, 35rem); margin-top: -1rem; }
  .scroll-cue { display: none; }
  .experience { padding-top: 7rem; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-card { min-height: 16rem; }
  .feature-card-raised { transform: none; }
  .feature-icon { margin-top: 2rem; }
  .flight-path { display: none; }
  .projection-room { min-height: 32rem; }
  .projection-intro { grid-template-columns: 1fr; }
  .projection-grid { grid-template-columns: 1fr 1fr; }
  .details-heading, .details-body { grid-template-columns: 1fr; }
  .checkout-shell { grid-template-columns: 1fr; }
  .checkout-gallery { width: min(100%, 40rem); margin: 0 auto; }
  .checkout-info { width: min(100%, 40rem); margin: 0 auto; }
  .faq { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .topbar { min-height: 4.7rem; }
  .brand { font-size: .7rem; letter-spacing: .12em; }
  .nav-cta { font-size: .64rem; padding: .55rem .8rem; }
  .hero { padding-left: 1.1rem; padding-right: 1.1rem; }
  .hero-lede { font-size: 1rem; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .button-primary { width: 100%; }
  .text-link { padding: .5rem 0; text-align: center; }
  .product-stage img { width: 94%; }
  .product-caption { right: 0; bottom: 4%; }
  .section-heading p:last-child { font-size: .96rem; }
  .feature-card { padding: 1.5rem; }
  .projection-room { min-height: 25rem; }
  .projection-room img { object-position: 64% center; }
  .projection-room figcaption { align-items: start; flex-direction: column; gap: .45rem; }
  .projection-room figcaption strong { text-align: left; }
  .projection-grid { grid-template-columns: 1fr; }
  .detail-row { flex-direction: column; gap: .25rem; }
  .detail-row strong { text-align: left; }
  .buy { min-height: 36rem; padding-left: 1.1rem; padding-right: 1.1rem; }
  .buy::before { inset: .7rem; }
  .checkout-price-row { align-items: flex-start; flex-direction: column; }
  .checkout-price-row > div { align-items: flex-start; flex-direction: column; gap: .15rem; }
  .preorder-banner { align-items: flex-start; flex-direction: column; }
  .checkout-assurance { flex-direction: column; gap: .3rem; }
  footer { grid-template-columns: 1fr; gap: 1rem; text-align: center; }
  footer .brand, .copyright { justify-self: center; }
}