:root {
  --ink: #06142f;
  --deep: #07111f;
  --panel: rgba(9, 23, 44, 0.72);
  --panel-solid: #0c1d36;
  --line: rgba(142, 229, 237, 0.22);
  --line-strong: rgba(142, 229, 237, 0.5);
  --text: #eef8ff;
  --muted: #9fb2c5;
  --cyan: #18c7c5;
  --blue: #2b69ff;
  --lime: #c5f85b;
  --white: #ffffff;
  --shadow: 0 30px 90px rgba(0, 0, 0, 0.42);
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    linear-gradient(120deg, rgba(24, 199, 197, 0.07), transparent 36%),
    linear-gradient(250deg, rgba(43, 105, 255, 0.12), transparent 42%),
    #050b14;
  color: var(--text);
  font-family: "Aptos", "Segoe UI", "Microsoft YaHei", sans-serif;
  letter-spacing: 0;
}

body::before {
  position: fixed;
  inset: 0;
  content: "";
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.95), transparent 78%);
}

a {
  color: inherit;
  text-decoration: none;
}

.page-shell {
  position: relative;
  overflow: hidden;
}

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 78px;
  padding: 0 clamp(20px, 4vw, 64px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(5, 11, 20, 0.58);
  backdrop-filter: blur(18px);
  transition: background 220ms ease, height 220ms ease;
}

.site-header.is-elevated {
  height: 66px;
  background: rgba(5, 11, 20, 0.9);
}

.brand {
  display: inline-flex;
  align-items: center;
  width: 206px;
  height: 54px;
  overflow: hidden;
}

.brand img {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 0 16px rgba(24, 199, 197, 0.18));
}

.nav-links {
  display: flex;
  gap: clamp(18px, 3vw, 38px);
  font-size: 14px;
  color: var(--muted);
}

.nav-links a {
  position: relative;
  transition: color 180ms ease;
}

.nav-links a::after {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -9px;
  height: 2px;
  content: "";
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

.nav-links a:hover {
  color: var(--white);
}

.nav-links a:hover::after {
  transform: scaleX(1);
}

.header-action,
.primary-action,
.secondary-action,
.waitlist-form button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  font-weight: 700;
}

.header-action {
  padding: 0 18px;
  color: #06142f;
  background: var(--cyan);
  box-shadow: 0 0 24px rgba(24, 199, 197, 0.24);
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 520px);
  align-items: center;
  gap: clamp(36px, 6vw, 92px);
  min-height: 100vh;
  padding: 132px clamp(20px, 5vw, 76px) 96px;
}

.signal-canvas,
.hero-grid {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.signal-canvas {
  opacity: 0.76;
}

.hero-grid {
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(24, 199, 197, 0.1), transparent 28%, rgba(43, 105, 255, 0.08) 72%, transparent),
    radial-gradient(ellipse at top, rgba(255, 255, 255, 0.08), transparent 58%);
}

.hero-content,
.hero-product,
.hero-foot {
  position: relative;
  z-index: 2;
  min-width: 0;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--cyan);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  max-width: 880px;
  font-size: clamp(48px, 7.1vw, 96px);
  line-height: 0.95;
  font-weight: 900;
  letter-spacing: 0;
}

.hero-copy {
  max-width: min(640px, 100%);
  margin: 28px 0 0;
  color: #bdd0df;
  font-size: clamp(17px, 1.7vw, 22px);
  line-height: 1.75;
  overflow-wrap: anywhere;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 42px;
}

.primary-action,
.secondary-action {
  min-width: 148px;
  padding: 0 24px;
}

.primary-action {
  color: #06142f;
  background: linear-gradient(90deg, var(--cyan), #b7fff0);
  border-color: transparent;
}

.secondary-action {
  background: rgba(255, 255, 255, 0.045);
  color: var(--white);
}

.hero-product {
  justify-self: center;
  width: min(100%, 500px);
}

.phone-frame {
  position: relative;
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.13), transparent 24%),
    rgba(4, 12, 24, 0.78);
  box-shadow: var(--shadow), inset 0 0 0 1px rgba(24, 199, 197, 0.14);
  transform: perspective(900px) rotateY(-7deg) rotateX(4deg);
}

.phone-status {
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 14px;
}

.status-dots {
  display: inline-flex;
  gap: 5px;
}

.status-dots i {
  width: 7px;
  height: 7px;
  background: var(--cyan);
  border-radius: 50%;
}

.video-panel {
  position: relative;
  min-height: 520px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 6px;
  background:
    linear-gradient(135deg, rgba(8, 27, 54, 0.9), rgba(5, 11, 20, 0.98)),
    var(--panel-solid);
}

.stage-lines {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.stage-lines span {
  border-right: 1px solid rgba(255, 255, 255, 0.07);
  transform: skewX(-12deg);
}

.speaker-row {
  position: absolute;
  top: 24px;
  left: 24px;
  display: flex;
  gap: 10px;
}

.speaker-card {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 4px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.06);
  font-weight: 800;
}

.speaker-card.active {
  color: #06142f;
  background: var(--cyan);
  box-shadow: 0 0 34px rgba(24, 199, 197, 0.35);
}

.subtitle-layer {
  position: absolute;
  left: 24px;
  right: 24px;
  bottom: 28px;
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 6px;
  background: rgba(4, 10, 18, 0.78);
  backdrop-filter: blur(14px);
}

.subtitle-layer p {
  margin: 0;
  line-height: 1.55;
}

.source-text {
  color: #b8c6d4;
  font-size: 15px;
}

.target-text {
  margin-top: 10px !important;
  color: var(--white);
  font-size: 22px;
  font-weight: 750;
}

.metric-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 14px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 5px;
}

.metric-strip div {
  padding: 16px 12px;
  background: rgba(255, 255, 255, 0.055);
}

.metric-strip strong,
.quality-card strong {
  display: block;
  font-size: 26px;
  color: var(--white);
}

.metric-strip span,
.quality-card span {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
}

.hero-foot {
  position: absolute;
  left: clamp(20px, 5vw, 76px);
  right: clamp(20px, 5vw, 76px);
  bottom: 28px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  color: var(--muted);
  font-size: 13px;
}

.hero-foot span {
  padding-top: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}

.section {
  position: relative;
  padding: clamp(84px, 11vw, 148px) clamp(20px, 5vw, 76px);
}

.section-heading {
  max-width: 780px;
  margin-bottom: 42px;
}

.section h2 {
  margin: 0;
  font-size: clamp(34px, 5vw, 72px);
  line-height: 1.05;
  letter-spacing: 0;
}

.pipeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.08);
}

.pipeline article,
.scene-board article,
.quality-card,
.launch-section {
  background: rgba(8, 20, 38, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.09);
}

.pipeline article {
  min-height: 330px;
  padding: 30px;
}

.step-number {
  color: var(--cyan);
  font-weight: 900;
  font-size: 13px;
}

.pipeline h3,
.scene-board h3 {
  margin: 80px 0 16px;
  font-size: 25px;
}

.pipeline p,
.scene-board p,
.launch-section p {
  color: var(--muted);
  line-height: 1.8;
}

.scene-board {
  display: grid;
  grid-template-columns: 1.35fr 1fr 1fr;
  gap: 16px;
}

.scene-board article {
  min-height: 230px;
  padding: 28px;
  border-radius: 6px;
}

.scene-board .scene-large {
  grid-row: span 2;
  min-height: 476px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  background:
    linear-gradient(150deg, rgba(24, 199, 197, 0.23), transparent 58%),
    rgba(8, 20, 38, 0.92);
}

.scene-meta {
  color: var(--lime);
  font-size: 13px;
  font-weight: 800;
}

.scene-large h3 {
  margin-top: 18px;
  font-size: clamp(34px, 4.4vw, 62px);
  line-height: 1.06;
}

.quality-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.quality-card {
  min-height: 180px;
  padding: 28px;
  border-radius: 6px;
}

.quality-card strong {
  font-size: clamp(38px, 5.2vw, 76px);
}

.launch-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 460px);
  align-items: end;
  gap: 36px;
  margin: 0 clamp(20px, 5vw, 76px) 76px;
  padding: clamp(36px, 5vw, 64px);
  border-radius: 8px;
}

.launch-section h2 {
  font-size: clamp(34px, 4.6vw, 64px);
}

.waitlist-form {
  display: grid;
  gap: 14px;
}

.waitlist-form label {
  color: var(--muted);
  font-size: 14px;
}

.waitlist-form div {
  display: flex;
  gap: 10px;
}

.waitlist-form input {
  min-width: 0;
  flex: 1;
  height: 50px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 4px;
  padding: 0 16px;
  color: var(--white);
  background: rgba(255, 255, 255, 0.07);
  font: inherit;
}

.waitlist-form button {
  width: 96px;
  color: #06142f;
  background: var(--cyan);
  font: inherit;
  cursor: pointer;
}

@media (max-width: 980px) {
  .nav-links {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 118px;
  }

  .hero-product {
    width: min(100%, 460px);
    justify-self: start;
  }

  .phone-frame {
    transform: none;
  }

  .hero-foot,
  .pipeline,
  .quality-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-foot {
    position: relative;
    left: auto;
    right: auto;
    bottom: auto;
    grid-column: 1 / -1;
  }

  .scene-board,
  .launch-section {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .site-header {
    height: 66px;
  }

  .brand {
    width: 160px;
  }

  .brand img {
    width: 100%;
  }

  .header-action {
    display: none;
  }

  .hero {
    padding-inline: 18px;
    width: 100%;
    overflow: hidden;
  }

  .hero-content,
  .hero-product {
    width: 100%;
    max-width: 100%;
  }

  .hero h1 {
    max-width: calc(100vw - 36px);
    font-size: clamp(38px, 10.5vw, 46px);
    line-height: 1.05;
  }

  .hero-copy {
    max-width: calc(100vw - 48px);
    font-size: 16px;
  }

  .video-panel {
    width: 100%;
    min-height: 420px;
  }

  .hero-foot,
  .pipeline,
  .quality-grid {
    grid-template-columns: 1fr;
  }

  .pipeline article {
    min-height: 260px;
  }

  .waitlist-form div {
    flex-direction: column;
  }

  .waitlist-form button {
    width: 100%;
  }
}