:root {
  color-scheme: light;
  --ink: #151a20;
  --muted: #53616f;
  --paper: #f7f4ef;
  --panel: #ffffff;
  --line: #d9dde1;
  --red: #c52b31;
  --red-dark: #8d1f26;
  --cyan: #15969b;
  --yellow: #efb83e;
  --night: #101820;
  --night-soft: #172330;
  --shadow: 0 22px 60px rgba(16, 24, 32, 0.22);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

.site-header {
  position: fixed;
  z-index: 10;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 32px;
  color: #ffffff;
  background: rgba(16, 24, 32, 0.82);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  font-weight: 800;
  text-decoration: none;
}

.brand img {
  width: 42px;
  height: 42px;
  border-radius: 8px;
}

.brand span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.top-nav {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 0.95rem;
}

.top-nav a {
  color: rgba(255, 255, 255, 0.82);
  text-decoration: none;
}

.top-nav a:hover {
  color: #ffffff;
}

.hero {
  position: relative;
  min-height: 92vh;
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(320px, 1fr);
  align-items: center;
  gap: 48px;
  overflow: hidden;
  padding: 124px 7vw 58px;
  color: #ffffff;
  background: var(--night);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("./red-thunder-icon.png");
  background-position: 8vw 50%;
  background-repeat: no-repeat;
  background-size: min(74vw, 760px);
  opacity: 0.08;
}

.hero-copy,
.hero-art {
  position: relative;
  z-index: 1;
}

.hero-copy {
  max-width: 680px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--yellow);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 18px;
  font-size: 4.6rem;
  line-height: 0.96;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: 2.6rem;
  line-height: 1.04;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.12rem;
  line-height: 1.2;
}

.hero-lede {
  max-width: 600px;
  margin-bottom: 28px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 1.22rem;
  line-height: 1.55;
}

.store-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
}

.store-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  border-radius: 8px;
  overflow: hidden;
  background: #000000;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.22);
}

.store-badge img {
  width: auto;
  height: 48px;
}

.google-badge img {
  height: 70px;
  margin: -11px -8px;
}

.smart-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: #ffffff;
  font-weight: 800;
  text-decoration-thickness: 2px;
  text-underline-offset: 5px;
}

.hero-art {
  min-height: 560px;
}

.hero-icon {
  position: absolute;
  top: 0;
  right: 9%;
  width: 180px;
  height: 180px;
  border-radius: 26px;
  box-shadow: var(--shadow);
}

.phone {
  position: absolute;
  width: 236px;
  min-height: 486px;
  padding: 18px;
  border: 9px solid #0a0f14;
  border-radius: 34px;
  color: #ffffff;
  background: #16202a;
  box-shadow: var(--shadow);
}

.phone-drive {
  left: 8%;
  bottom: 0;
  transform: rotate(-5deg);
}

.phone-advanced {
  right: 5%;
  bottom: 42px;
  transform: rotate(4deg);
  background: #211a1a;
}

.phone-bar {
  width: 76px;
  height: 7px;
  margin: 0 auto 22px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.3);
}

.screen-title {
  margin-bottom: 14px;
  font-size: 1.5rem;
  font-weight: 900;
}

.battery-row,
.control-row,
.animation-pill,
.animation-list span,
.touch-zones span {
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
}

.battery-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px;
  color: rgba(255, 255, 255, 0.8);
  background: rgba(255, 255, 255, 0.07);
}

.battery-row strong {
  color: #ffffff;
}

.touch-zones {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 22px 0;
}

.touch-zones span {
  display: grid;
  min-height: 198px;
  place-items: center;
  color: rgba(255, 255, 255, 0.86);
  background: rgba(21, 150, 155, 0.28);
  font-weight: 800;
}

.control-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  padding: 8px;
  background: rgba(255, 255, 255, 0.07);
}

.control-row span {
  display: grid;
  min-height: 34px;
  place-items: center;
  font-size: 0.74rem;
}

.animation-pill {
  margin-bottom: 18px;
  padding: 12px;
  color: #ffffff;
  background: var(--red);
  font-weight: 900;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.animation-list {
  display: grid;
  gap: 10px;
}

.animation-list span {
  padding: 12px;
  color: rgba(255, 255, 255, 0.84);
  background: rgba(255, 255, 255, 0.08);
}

.section {
  padding: 88px 7vw;
}

.intro-section {
  display: grid;
  grid-template-columns: minmax(260px, 0.92fr) minmax(320px, 1fr);
  gap: 44px;
  align-items: center;
  background: #ffffff;
}

.intro-copy p,
.section-heading p,
.hardware-copy p,
.pro-copy p,
.feature-card p,
.pro-list p,
.site-footer p {
  color: var(--muted);
  line-height: 1.65;
}

.intro-copy p,
.hardware-copy p,
.pro-copy p {
  font-size: 1.08rem;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 0;
}

.stat-grid div {
  min-height: 144px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

.stat-grid dt {
  color: var(--red);
  font-size: 2.4rem;
  font-weight: 900;
}

.stat-grid dd {
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.35;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 32px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.feature-card {
  min-height: 280px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.feature-mark {
  display: inline-grid;
  width: 42px;
  height: 42px;
  margin-bottom: 28px;
  place-items: center;
  border-radius: 50%;
  color: #ffffff;
  background: var(--cyan);
  font-weight: 900;
}

.pro-band {
  display: grid;
  grid-template-columns: minmax(280px, 0.75fr) minmax(320px, 1fr);
  gap: 44px;
  padding: 88px 7vw;
  color: #ffffff;
  background: var(--red-dark);
}

.pro-band .eyebrow {
  color: #ffdb7b;
}

.pro-copy p,
.pro-list p {
  color: rgba(255, 255, 255, 0.82);
}

.pro-list {
  display: grid;
  gap: 14px;
}

.pro-list div {
  min-height: 130px;
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
}

.hardware-section {
  display: grid;
  grid-template-columns: minmax(280px, 0.85fr) minmax(320px, 1fr);
  gap: 56px;
  align-items: center;
}

.hardware-visual {
  display: grid;
  min-height: 360px;
  place-items: center;
  background: var(--night-soft);
  border-radius: 8px;
  overflow: hidden;
}

.remote-shell {
  position: relative;
  width: min(78%, 420px);
  height: 188px;
  border: 12px solid #0a0f14;
  border-radius: 58px;
  background: #202d3a;
  box-shadow: var(--shadow);
}

.remote-shell::before,
.remote-shell::after {
  content: "";
  position: absolute;
  top: 52px;
  width: 62px;
  height: 62px;
  border-radius: 50%;
  background: #0d141b;
  box-shadow: inset 0 0 0 16px #324657;
}

.remote-shell::before {
  left: 58px;
}

.remote-shell::after {
  right: 58px;
}

.remote-shell span {
  position: absolute;
  right: 142px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--yellow);
}

.remote-shell span:nth-child(1) {
  top: 44px;
}

.remote-shell span:nth-child(2) {
  top: 74px;
  right: 112px;
  background: var(--cyan);
}

.remote-shell span:nth-child(3) {
  top: 74px;
  right: 172px;
  background: var(--red);
}

.remote-shell span:nth-child(4) {
  top: 104px;
}

.button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  margin-top: 8px;
  padding: 0 18px;
  border-radius: 8px;
  color: #ffffff;
  background: var(--ink);
  font-weight: 900;
  text-decoration: none;
}

.button-link:hover {
  background: var(--red-dark);
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 30px 7vw;
  border-top: 1px solid var(--line);
  background: #ffffff;
}

.site-footer p {
  margin-bottom: 0;
}

.site-footer div {
  display: flex;
  gap: 16px;
  font-weight: 800;
}

.download-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 28px;
  background: var(--night);
}

.download-shell {
  width: min(100%, 560px);
  padding: 34px;
  border-radius: 8px;
  color: var(--ink);
  background: #ffffff;
  text-align: center;
  box-shadow: var(--shadow);
}

.download-icon {
  width: 96px;
  height: 96px;
  margin: 0 auto 18px;
  border-radius: 18px;
}

.download-shell h1 {
  margin-bottom: 12px;
  font-size: 2.45rem;
  line-height: 1.05;
}

.download-shell p {
  color: var(--muted);
  line-height: 1.55;
}

.download-store-row {
  justify-content: center;
  margin-top: 20px;
  margin-bottom: 0;
}

@media (max-width: 1040px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .hero-art {
    order: 2;
    min-height: 520px;
  }

  .hero-copy {
    order: 1;
  }

  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 820px) {
  .site-header {
    padding: 14px 18px;
  }

  .top-nav {
    display: none;
  }

  .hero,
  .section,
  .pro-band {
    padding-left: 22px;
    padding-right: 22px;
  }

  .hero {
    padding-top: 108px;
  }

  h1 {
    font-size: 3.2rem;
    line-height: 1;
  }

  h2 {
    font-size: 2.12rem;
  }

  .hero-lede {
    font-size: 1.08rem;
  }

  .intro-section,
  .pro-band,
  .hardware-section {
    grid-template-columns: 1fr;
  }

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

  .hero-art {
    min-height: 470px;
  }

  .hero-icon {
    width: 128px;
    height: 128px;
    right: 0;
  }

  .phone {
    width: 206px;
    min-height: 428px;
    border-width: 8px;
  }

  .phone-drive {
    left: 0;
  }

  .phone-advanced {
    right: 0;
  }

  .touch-zones span {
    min-height: 164px;
  }

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

@media (max-width: 560px) {
  .hero {
    gap: 28px;
  }

  h1 {
    font-size: 2.72rem;
  }

  h2 {
    font-size: 1.9rem;
  }

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

  .hero-art {
    min-height: 610px;
  }

  .hero-icon {
    top: 4px;
    left: 0;
    right: auto;
  }

  .phone-drive {
    top: 128px;
    left: 4px;
    bottom: auto;
  }

  .phone-advanced {
    top: 186px;
    right: 2px;
    bottom: auto;
  }

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

  .hardware-visual {
    min-height: 260px;
  }

  .remote-shell {
    width: 92%;
    height: 154px;
  }

  .remote-shell::before,
  .remote-shell::after {
    top: 40px;
    width: 48px;
    height: 48px;
    box-shadow: inset 0 0 0 12px #324657;
  }

  .remote-shell::before {
    left: 34px;
  }

  .remote-shell::after {
    right: 34px;
  }

  .remote-shell span {
    right: 105px;
  }

  .remote-shell span:nth-child(2) {
    right: 78px;
  }

  .remote-shell span:nth-child(3) {
    right: 132px;
  }

  .download-shell {
    padding: 28px 18px;
  }

  .download-shell h1 {
    font-size: 2rem;
  }
}