:root {
  --bg: #0d0d0e;
  --surface: #161617;
  --surface-2: #1b1b1d;
  --surface-3: #202023;

  --text: #ffffff;
  --muted: #a8a8ad;
  --muted-2: #747479;

  --border: #2b2b2e;
  --border-light: #38383c;

  --accent: #ffffff;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;

  background: var(--bg);
  color: var(--text);

  font-family:
    Inter,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;

  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

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

.page-shell {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}


/* HEADER */

.site-header {
  border-bottom: 1px solid var(--border);

  background:
    rgba(13, 13, 14, 0.94);
}

/* HEADER */

.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(13, 13, 14, 0.96);
}

.site-header__inner {
  width: min(1180px, calc(100% - 40px));
  min-height: 78px;

  margin: 0 auto;

  display: flex;
  align-items: center;
  justify-content: space-between;

  gap: 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;

  color: var(--text);
  text-decoration: none;
}

.brand:hover,
.brand:focus {
  color: var(--text);
  text-decoration: none;
}

.brand__logo {
  display: block;

  width: auto;
  height: 42px;

  max-width: 180px;

  object-fit: contain;
}

.brand__text {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.brand__text small {
  margin: 0;

  color: var(--muted);

  font-size: 0.68rem;
  font-weight: 600;

  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.demo-badge {
  padding: 8px 12px;

  border: 1px solid var(--border);
  border-radius: 999px;

  color: var(--muted);

  font-size: 0.75rem;
}


/* =========================================================
   HERO
   ========================================================= */

.hero {
  padding: 92px 0 72px;
}

.hero-layout {
  display: grid;

  grid-template-columns:
    minmax(0, 1.4fr)
    minmax(300px, 0.6fr);

  gap: 80px;

  align-items: center;
}

.hero__content {
  min-width: 0;
}

.eyebrow,
.section-label {
  margin: 0 0 18px;

  color: var(--muted);

  font-size: 0.74rem;
  font-weight: 700;

  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero h1 {
  width: 100%;
  max-width: 820px;

  margin: 0;

  font-size: clamp(4.8rem, 8vw, 7rem);
  line-height: 0.88;

  letter-spacing: -0.065em;
}

.hero h1 span {
  display: block;

  color: #a9a9ad;
}

.hero__intro {
  width: 100%;
  max-width: 690px;

  margin: 32px 0 0;

  color: var(--muted);

  font-size: clamp(1rem, 1.5vw, 1.18rem);
  line-height: 1.7;
}


/* =========================================================
   HERO QR
   ========================================================= */

.hero-qr {
  justify-self: end;

  width: min(100%, 360px);

  padding: 28px;

  border: 1px solid var(--border);
  border-radius: 24px;

  background: var(--surface);
}

.hero-qr__code {
  width: 100%;

  display: grid;
  place-items: center;

  padding: 24px;

  border-radius: 18px;

  background: #ffffff;
}

.hero-qr__code img {
  display: block;

  width: min(100%, 230px);
  height: auto;
}

.hero-qr__copy {
  padding-top: 24px;
}

.hero-qr__eyebrow {
  margin: 0 0 10px;

  color: var(--muted-2);

  font-size: 0.68rem;
  font-weight: 700;

  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero-qr__copy h2 {
  margin: 0;

  font-size: 1.45rem;
  line-height: 1.15;

  letter-spacing: -0.035em;
}

.hero-qr__copy > p:last-child {
  margin: 12px 0 0;

  color: var(--muted);

  font-size: 0.82rem;
  line-height: 1.55;
}


/* PRODUCT SECTION */

.product-section {
  padding: 56px 0 100px;
}

.product-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(290px, 0.75fr);

  gap: 52px;

  align-items: start;
}

.viewer-card {
  overflow: hidden;

  border: 1px solid var(--border);
  border-radius: 26px;

  background: var(--surface);
}

.viewer-toolbar {
  min-height: 74px;

  display: flex;
  align-items: center;
  justify-content: space-between;

  gap: 20px;

  padding: 16px 20px;

  border-bottom: 1px solid var(--border);
}

.viewer-toolbar > div {
  display: flex;
  flex-direction: column;

  gap: 5px;
}

.viewer-toolbar strong {
  font-size: 0.95rem;
}

.viewer-toolbar__label {
  color: var(--muted-2);

  font-size: 0.7rem;

  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.viewer-status {
  padding: 7px 10px;

  border: 1px solid var(--border-light);
  border-radius: 999px;

  color: #cfcfd3;

  font-size: 0.68rem;

  letter-spacing: 0.08em;
  text-transform: uppercase;
}

model-viewer {
  display: block;

  width: 100%;
  height: 650px;

  background:
    radial-gradient(
      circle at center,
      #29292c 0%,
      #19191b 55%,
      #151516 100%
    );
}

.ar-button {
  position: absolute;

  left: 50%;
  bottom: 28px;

  transform: translateX(-50%);

  min-height: 50px;

  display: flex;
  align-items: center;
  justify-content: center;

  gap: 10px;

  padding: 0 24px;

  border: 0;
  border-radius: 999px;

  background: #ffffff;
  color: #111111;

  font: inherit;
  font-size: 0.9rem;
  font-weight: 750;

  cursor: pointer;
}

.ar-button__icon {
  font-size: 1rem;
}

.viewer-controls {
  min-height: 62px;

  display: flex;
  align-items: center;
  justify-content: center;

  gap: 24px;

  flex-wrap: wrap;

  padding: 14px 20px;

  border-top: 1px solid var(--border);

  color: var(--muted-2);

  font-size: 0.75rem;
}

.viewer-controls strong {
  color: #c3c3c6;

  font-weight: 600;
}


/* PRODUCT INFO */

.product-info {
  padding-top: 12px;
}

.product-info h2 {
  margin: 0;

  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1;

  letter-spacing: -0.04em;
}

.product-description {
  margin: 24px 0 0;

  color: var(--muted);

  line-height: 1.7;
}

.feature-list {
  margin-top: 36px;
}

.feature-item {
  display: grid;
  grid-template-columns: 44px 1fr;

  gap: 15px;

  padding: 20px 0;

  border-top: 1px solid var(--border);
}

.feature-item:last-child {
  border-bottom: 1px solid var(--border);
}

.feature-number {
  color: var(--muted-2);

  font-size: 0.7rem;

  letter-spacing: 0.08em;
}

.feature-item strong {
  display: block;

  margin-bottom: 6px;

  font-size: 0.92rem;
}

.feature-item p {
  margin: 0;

  color: var(--muted);

  font-size: 0.87rem;
  line-height: 1.55;
}

.compatibility-note {
  margin-top: 30px;

  padding: 18px;

  border: 1px solid var(--border);
  border-radius: 16px;

  background: var(--surface);
}

.compatibility-note strong {
  display: block;

  margin-bottom: 8px;

  font-size: 0.8rem;
}

.compatibility-note p {
  margin: 0;

  color: var(--muted);

  font-size: 0.78rem;
  line-height: 1.55;
}


/* HOW IT WORKS */

.how-it-works {
  padding: 92px 0;

  border-top: 1px solid var(--border);

  background: #111112;
}

.section-heading {
  max-width: 680px;
}

.section-heading h2,
.business-use h2,
.cta h2 {
  margin: 0;

  font-size: clamp(2.2rem, 5vw, 4.5rem);
  line-height: 0.98;

  letter-spacing: -0.055em;
}

.steps {
  margin-top: 52px;

  display: grid;
  grid-template-columns: repeat(3, 1fr);

  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.step {
  min-height: 220px;

  padding: 30px;

  border-right: 1px solid var(--border);
}

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

.step__number {
  display: block;

  margin-bottom: 54px;

  color: var(--muted-2);

  font-size: 0.72rem;
}

.step h3 {
  margin: 0 0 12px;

  font-size: 1.25rem;
}

.step p {
  margin: 0;

  color: var(--muted);

  font-size: 0.9rem;
  line-height: 1.6;
}


/* BUSINESS USE */

.business-use {
  padding: 100px 0;
}

.business-use__layout {
  display: grid;
  grid-template-columns: 1fr 1fr;

  gap: 70px;
}

.business-use__content {
  padding-top: 34px;
}

.business-use__content > p {
  max-width: 590px;

  margin: 0;

  color: var(--muted);

  font-size: 1rem;
  line-height: 1.7;
}

.use-tags {
  margin-top: 32px;

  display: flex;
  flex-wrap: wrap;

  gap: 9px;
}

.use-tags span {
  padding: 9px 12px;

  border: 1px solid var(--border);
  border-radius: 999px;

  color: #b7b7bb;

  font-size: 0.75rem;
}


/* CTA */

.cta {
  padding: 0 0 100px;
}

.cta__panel {
  display: flex;
  align-items: center;
  justify-content: space-between;

  gap: 40px;

  padding: 48px;

  border: 1px solid var(--border);
  border-radius: 26px;

  background: var(--surface);
}

.cta__panel > div {
  max-width: 760px;
}

.cta__panel p:not(.section-label) {
  max-width: 620px;

  margin: 22px 0 0;

  color: var(--muted);

  line-height: 1.65;
}

.cta-button {
  flex: 0 0 auto;

  min-height: 48px;

  display: inline-flex;
  align-items: center;
  justify-content: center;

  padding: 0 22px;

  border-radius: 999px;

  background: #ffffff;
  color: #111111;

  text-decoration: none;

  font-size: 0.86rem;
  font-weight: 750;
}


/* FOOTER */

.site-footer {
  border-top: 1px solid var(--border);
}

.site-footer__inner {
  min-height: 86px;

  display: flex;
  align-items: center;
  justify-content: space-between;

  gap: 20px;

  color: var(--muted-2);

  font-size: 0.72rem;
}


/* IOS NON-SAFARI NOTICE */

.ios-ar-notice {
  position: fixed;
  inset: 0;

  display: grid;
  place-items: center;

  padding: 24px;

  background: rgba(0, 0, 0, 0.76);

  backdrop-filter: blur(6px);

  z-index: 9999;
}

.ios-ar-notice__content {
  width: min(430px, 100%);

  padding: 30px;

  border: 1px solid var(--border-light);
  border-radius: 22px;

  background: #181819;
  color: #ffffff;

  text-align: center;
}

.ios-ar-notice__content strong {
  display: block;

  margin-bottom: 14px;

  font-size: 1.25rem;
  line-height: 1.25;
}

.ios-ar-notice__content p {
  margin: 0 0 24px;

  color: #b5b5b8;

  line-height: 1.6;
}

.ios-ar-notice__close {
  min-height: 48px;

  padding: 0 24px;

  border: 0;
  border-radius: 999px;

  background: #ffffff;
  color: #111111;

  font: inherit;
  font-weight: 750;

  cursor: pointer;
}


/* RESPONSIVE */

@media (max-width: 900px) {

  .product-layout,
  .business-use__layout {
    grid-template-columns: 1fr;
  }

  .brand__logo {
    height: 34px;
    max-width: 150px;
 }

  .product-layout {
    gap: 46px;
  }

  .product-info {
    padding-top: 0;
  }

  .steps {
    grid-template-columns: 1fr;
  }

  .step {
    min-height: auto;

    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

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

  .step__number {
    margin-bottom: 28px;
  }

  .cta__panel {
    align-items: flex-start;
    flex-direction: column;
  }
}


@media (max-width: 700px) {

  .page-shell,
  .site-header__inner {
    width: min(100% - 24px, 1180px);
  }

  .brand__logo {
    height: 34px;
    max-width: 150px;
  }

  .site-header__inner {
    min-height: 68px;
  }

  .demo-badge {
    display: none;
  }

  .hero {
    padding: 62px 0 36px;
  }

  .hero h1 {
    font-size: clamp(3.2rem, 16vw, 5.2rem);
  }

  .hero__intro {
    margin-top: 24px;
  }

  .product-section {
    padding-bottom: 70px;
  }

  .viewer-card {
    border-radius: 20px;
  }

  model-viewer {
    height: 500px;
  }

  .viewer-toolbar {
    min-height: 68px;
  }

  .viewer-controls {
    justify-content: flex-start;

    gap: 10px 18px;
  }

  .how-it-works,
  .business-use {
    padding: 72px 0;
  }

  .step {
    padding: 26px 10px;
  }

  .cta {
    padding-bottom: 70px;
  }

  .cta__panel {
    padding: 28px;

    border-radius: 20px;
  }

  .cta-button {
    width: 100%;
  }

  .site-footer__inner {
    min-height: 110px;

    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
  }

  .ar-button {
    width: calc(100% - 40px);

    max-width: 300px;
  }
}

/* =========================================================
   MOBILE HERO
   ========================================================= */

@media screen and (max-width: 900px) {

  .hero {
    padding: 62px 0 44px;
  }

  .hero-layout {
    display: block;

    width: min(100% - 24px, 1180px);
  }

  .hero__content {
    width: 100%;
    max-width: none;

    min-width: 0;
  }

  .hero-qr {
    display: none !important;
  }

  .hero h1 {
    width: 100%;
    max-width: none;

    font-size: clamp(4rem, 17vw, 6rem);
    line-height: 0.92;
  }

  .hero__intro {
    width: 100%;
    max-width: 100%;

    margin-top: 28px;

    font-size: 1.05rem;
    line-height: 1.65;
  }
}


@media screen and (max-width: 430px) {

  .hero {
    padding-top: 56px;
  }

  .hero h1 {
    font-size: clamp(3.7rem, 18vw, 5rem);
  }

  .hero__intro {
    font-size: 1rem;
  }
}