:root {
  --bg: #f5f5f7;
  --surface: rgba(255, 255, 255, 0.78);
  --surface-strong: rgba(255, 255, 255, 0.94);
  --text: #111111;
  --muted: rgba(17, 17, 17, 0.62);
  --muted-light: rgba(17, 17, 17, 0.46);
  --border: rgba(17, 17, 17, 0.08);
  --shadow-soft: 0 30px 100px rgba(0, 0, 0, 0.08);
  --shadow-card: 0 20px 60px rgba(0, 0, 0, 0.08);
  --radius-xl: 48px;
  --radius-lg: 34px;
  --radius-md: 24px;
  --radius-pill: 999px;
  --container: 1200px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", sans-serif;
  color: var(--text);
  background: var(--bg);
}

body::selection {
  background: #111111;
  color: #ffffff;
}

.page-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(circle at top, rgba(255, 255, 255, 0.95), transparent 35%),
    radial-gradient(circle at bottom, rgba(0, 0, 0, 0.05), transparent 30%),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.75), rgba(245, 245, 247, 0.98));
}

.container {
  width: min(calc(100% - 48px), var(--container));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(18px);
  background: rgba(245, 245, 247, 0.72);
  border-bottom: 1px solid rgba(17, 17, 17, 0.05);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
}

.brand {
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: rgba(17, 17, 17, 0.74);
}

.section {
  position: relative;
}

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 48px 0 80px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items: center;
}

.eyebrow-pill,
.preview-badge {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.04);
}

.eyebrow-pill {
  padding: 12px 18px;
  font-size: 0.92rem;
  color: rgba(17, 17, 17, 0.7);
  margin-bottom: 20px;
}

.hero h1 {
  margin: 0;
  font-size: clamp(3.3rem, 8vw, 6.3rem);
  line-height: 0.95;
  letter-spacing: -0.06em;
  font-weight: 600;
}

.hero-text,
.section-heading p,
.info-card p,
.feature-item p,
.device-hero-copy {
  color: var(--muted);
}

.hero-text {
  max-width: 700px;
  font-size: 1.2rem;
  line-height: 1.8;
  margin: 24px 0 0;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-top: 36px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 0 28px;
  border-radius: var(--radius-pill);
  text-decoration: none;
  font-weight: 500;
  font-size: 1rem;
  border: 1px solid transparent;
  transition: transform 0.25s ease, background 0.25s ease, border-color 0.25s ease;
  cursor: pointer;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-small {
  min-height: 42px;
  padding: 0 20px;
  font-size: 0.92rem;
}

.btn-dark {
  background: #111111;
  color: #ffffff;
}

.btn-dark:hover {
  background: #000000;
}

.btn-light {
  background: rgba(255, 255, 255, 0.84);
  color: #111111;
  border-color: rgba(17, 17, 17, 0.08);
}

.btn-light:hover {
  background: rgba(255, 255, 255, 0.98);
}

.preview-shell {
  position: relative;
}

.preview-shell::before {
  content: "";
  position: absolute;
  inset: -24px;
  border-radius: 48px;
  background: rgba(255, 255, 255, 0.4);
  filter: blur(50px);
}

.preview-card {
  position: relative;
  overflow: hidden;
  padding: 18px;
  border-radius: 44px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 30px 100px rgba(0, 0, 0, 0.12);
  backdrop-filter: blur(22px);
}

.preview-card > * {
  position: relative;
}

.preview-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  padding: 10px 10px 18px;
}

.preview-label {
  margin: 0 0 6px;
  font-size: 0.9rem;
  color: var(--muted-light);
}

.preview-top h3,
.feature-item h4,
.info-card h3,
.section-heading h2,
.cta-box h2 {
  margin: 0;
  letter-spacing: -0.03em;
}

.preview-top h3 {
  font-size: 1.55rem;
}

.preview-badge {
  white-space: nowrap;
  padding: 8px 12px;
  font-size: 0.78rem;
  color: rgba(17, 17, 17, 0.55);
}

.feature-list {
  display: grid;
  gap: 12px;
}

.feature-item {
  display: flex;
  gap: 16px;
  padding: 18px;
  border-radius: 26px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(17, 17, 17, 0.05);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.05);
}

.feature-item p {
  margin: 6px 0 0;
  line-height: 1.7;
  font-size: 0.94rem;
}

.feature-icon {
  width: 38px;
  height: 38px;
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(17, 17, 17, 0.08), rgba(17, 17, 17, 0.02));
  flex-shrink: 0;
  margin-top: 2px;
}

.scroll-indicator {
  position: absolute;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  color: rgba(17, 17, 17, 0.46);
}

.scroll-indicator span {
  text-transform: uppercase;
  letter-spacing: 0.24em;
  font-size: 0.75rem;
  margin-bottom: 8px;
}

.scroll-arrow {
  font-size: 1.6rem;
  animation: bounce 1.8s infinite;
}

.assembly {
  padding: 120px 0 80px;
}

.section-heading {
  text-align: center;
  max-width: 840px;
  margin: 0 auto;
}

.section-label {
  margin: 0;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.28em;
  color: var(--muted-light);
}

.section-heading h2 {
  font-size: clamp(2.6rem, 6vw, 4.6rem);
  line-height: 1.02;
  font-weight: 600;
  margin-top: 16px;
}

.section-heading p {
  margin: 22px auto 0;
  max-width: 720px;
  font-size: 1.14rem;
  line-height: 1.8;
}

.assembly-stage {
  position: relative;
  margin-top: 72px;
  min-height: 760px;
  border-radius: 48px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.75);
  background: rgba(255, 255, 255, 0.68);
  box-shadow: var(--shadow-soft);
}

.static-image-wrap {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 36px;
}

.assembly-static-image {
  display: block;
  width: min(100%, 1200px);
  max-height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 24px 48px rgba(0, 0, 0, 0.12));
}

.benefits {
  padding: 20px 0 72px;
}

.benefit-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.info-card {
  padding: 28px;
  border-radius: 32px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 12px 34px rgba(0, 0, 0, 0.05);
  backdrop-filter: blur(18px);
}

.info-card p {
  margin: 14px 0 0;
  line-height: 1.8;
}

.cta {
  padding: 0 0 96px;
}

.cta-box {
  padding: 44px;
  border-radius: 48px;
  border: 1px solid rgba(255, 255, 255, 0.82);
  background: rgba(255, 255, 255, 0.78);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(24px);
}

.compact {
  max-width: 740px;
}

.waitlist-form {
  display: flex;
  gap: 14px;
  max-width: 760px;
  margin: 36px auto 0;
}

.waitlist-form input {
  flex: 1;
  min-height: 56px;
  border-radius: 999px;
  border: 1px solid rgba(17, 17, 17, 0.1);
  background: rgba(255, 255, 255, 0.96);
  padding: 0 24px;
  font: inherit;
  font-size: 1rem;
  outline: none;
}

.waitlist-form input:focus {
  border-color: rgba(17, 17, 17, 0.22);
}

.success-message {
  display: none;
  margin: 18px 0 0;
  text-align: center;
  color: rgba(17, 17, 17, 0.55);
}

.success-message.show {
  display: block;
}

.hero-fade {
  opacity: 0;
  transform: translateY(28px);
  animation: fadeUp 0.9s ease forwards;
}

.hero-fade-delay {
  animation-delay: 0.18s;
}

@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes bounce {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(6px);
  }
}

@media (max-width: 1024px) {
  .hero-grid,
  .benefit-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 36px;
  }

  .preview-shell {
    max-width: 680px;
    margin: 0 auto;
  }

  .assembly-stage {
    min-height: 640px;
  }
}

@media (max-width: 768px) {
  .container {
    width: min(calc(100% - 32px), var(--container));
  }

  .hero-text,
  .section-heading p {
    font-size: 1rem;
  }

  .hero-actions,
  .waitlist-form {
    flex-direction: column;
  }

  .btn,
  .waitlist-form input {
    width: 100%;
  }

  .assembly-stage {
    min-height: 460px;
    margin-top: 48px;
  }

  .static-image-wrap {
    padding: 18px;
  }

  .cta-box {
    padding: 28px;
  }
}


.hotspot-button {
  position: absolute;
  width: 72px;
  height: 72px;
  border: none;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.18);
  display: grid;
  place-items: center;
  cursor: pointer;
  z-index: 3;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.hotspot-button:hover,
.hotspot-button:focus-visible {
  box-shadow: 0 20px 42px rgba(0, 0, 0, 0.22);
  outline: none;
}

.hotspot-left {
  top: 50%;
  left: 21.7%;
  transform: translate(-50%, -50%);
}

.hotspot-right {
  top: 50.5%;
  left: 53%;
  transform: translate(-50%, -50%);
}

.hotspot-left:hover,
.hotspot-left:focus-visible,
.hotspot-right:hover,
.hotspot-right:focus-visible {
  transform: translate(-50%, -50%) scale(1.04);
}

.hotspot-pulse {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: rgba(255, 255, 255, 0.4);
  animation: hotspotPulse 2s ease-out infinite;
}

.hotspot-plus {
  position: relative;
  z-index: 1;
  font-size: 3rem;
  line-height: 1;
  font-weight: 500;
  color: #111111;
  transform: translateY(-2px);
}

.hotspot-panel {
  position: absolute;
  width: min(360px, calc(100% - 48px));
  padding: 20px 22px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(17, 17, 17, 0.08);
  box-shadow: 0 24px 50px rgba(0, 0, 0, 0.16);
  z-index: 3;
}

.hotspot-panel-left {
  top: calc(50% + 64px);
  left: 21.7%;
  transform: translateX(-10%);
}

.hotspot-panel-right {
  top: calc(50.5% + 64px);
  left: 53%;
  transform: translateX(-10%);
}

.hotspot-kicker {
  margin: 0 0 8px;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #111111;
}

.hotspot-body {
  margin: 0;
  color: rgba(17, 17, 17, 0.72);
  font-size: 1rem;
  line-height: 1.6;
}

@keyframes hotspotPulse {
  0% {
    transform: scale(1);
    opacity: 0.65;
  }
  70% {
    transform: scale(1.45);
    opacity: 0;
  }
  100% {
    transform: scale(1.45);
    opacity: 0;
  }
}

@media (max-width: 1024px) {
  .hotspot-button {
    width: 64px;
    height: 64px;
  }

  .hotspot-plus {
    font-size: 2.6rem;
  }

  .hotspot-panel {
    width: min(320px, calc(100% - 48px));
  }

  .hotspot-panel-left {
    top: calc(50% + 58px);
    left: 18px;
    transform: none;
  }

  .hotspot-panel-right {
    top: calc(50.5% + 58px);
    left: auto;
    right: 18px;
    transform: none;
  }
}

@media (max-width: 768px) {
  .hotspot-button {
    width: 56px;
    height: 56px;
  }

  .hotspot-plus {
    font-size: 2.2rem;
  }

  .hotspot-left {
    top: 50%;
    left: 21.7%;
  }

  .hotspot-right {
    top: 50.5%;
    left: 53%;
  }

  .hotspot-panel {
    left: 16px !important;
    right: 16px !important;
    top: auto !important;
    bottom: 16px;
    width: auto;
    transform: none !important;
    padding: 18px;
  }
}

.video-card {
  width: 100%;
  max-width: 450px;
  height: 580px;
  border-radius: 28px;
  overflow: hidden;
  margin-top: 16px;
}

.video-card video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}



.waitlist-form button:disabled {
  opacity: 0.72;
  cursor: wait;
  transform: none;
}

.form-message {
  display: none;
  margin: 18px 0 0;
  text-align: center;
  font-size: 0.98rem;
}

.success-message,
.error-message {
  display: none;
}

.success-message.show,
.error-message.show,
.form-message.show {
  display: block;
}

.success-message {
  color: rgba(17, 17, 17, 0.55);
}

.error-message {
  color: #a12626;
}