:root {
  color-scheme: dark;
  --bg: #080a0c;
  --panel: rgba(10, 13, 16, .58);
  --panel-strong: rgba(10, 13, 16, .78);
  --solid: #101418;
  --text: #f5f7f8;
  --muted: #aeb8c1;
  --line: rgba(255, 255, 255, .16);
  --accent: #1fbf72;
  --accent-text: #07110c;
  --green: #38e26d;
  --blue: #41a5ff;
  --max: 1060px;
  --hero-height: 100svh;
  --scene-height: max(760px, calc(100vw * 2.35));
  --viewport-top: 0px;
}

@supports not (height: 100svh) {
  :root {
    --hero-height: 100vh;
  }
}

* {
  box-sizing: border-box;
}

html {
  width: 100%;
  overflow-x: hidden;
  overscroll-behavior-y: none;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  width: 100%;
  overflow-x: hidden;
  overscroll-behavior-y: none;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
}

button,
input,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.topbar {
  position: fixed;
  z-index: 50;
  top: calc(10px + var(--viewport-top));
  left: 10px;
  right: 10px;
  height: 48px;
  display: grid;
  grid-template-columns: 38px 1fr auto;
  align-items: center;
  gap: 8px;
  padding: 5px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(3, 5, 7, .68);
  backdrop-filter: blur(16px);
  box-shadow: 0 18px 50px rgba(0, 0, 0, .25);
  transform: translateZ(0);
  will-change: transform;
}

.brand {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, .08);
}

.brand img {
  width: 25px;
  height: 25px;
  object-fit: contain;
  filter: invert(1);
}

.model-switch {
  justify-self: center;
  width: min(190px, 100%);
  display: grid;
  grid-template-columns: 1fr 1fr;
  padding: 3px;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 999px;
  background: rgba(255, 255, 255, .06);
}

.model-button,
.buy-button,
.question-button,
.submit-button,
.close-button {
  border: 0;
  color: var(--text);
}

.model-button {
  min-height: 30px;
  border-radius: 999px;
  background: transparent;
  color: #dbe2e7;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .08em;
}

.model-button.active {
  background: var(--accent);
  color: var(--accent-text);
}

.buy-button {
  min-height: 38px;
  padding: 0 14px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-text);
  font-size: 14px;
  font-weight: 900;
}

.story {
  position: relative;
  z-index: 0;
  min-height: calc(var(--hero-height) * 6.2);
  overflow: hidden;
}

.visual-layer {
  position: fixed;
  z-index: 0;
  top: 0;
  right: 0;
  left: 0;
  height: var(--scene-height);
  overflow: hidden;
  background: #050607;
  transform: translateZ(0);
  pointer-events: none;
}

.hero-slider,
.hero-slide,
.visual-shade {
  position: absolute;
  inset: 0;
}

.hero-slide {
  opacity: 0;
  transform: scale(1.015);
  transition: opacity 3.8s cubic-bezier(.45, 0, .2, 1), transform 5s ease;
  will-change: opacity, transform;
}

.hero-slide.active {
  opacity: 1;
  transform: scale(1);
  z-index: 1;
}

.hero-slide.was-active {
  opacity: 0;
  transform: scale(1);
  z-index: 0;
}

.hero-slide img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: center center;
}

.visual-shade {
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(5, 7, 9, .34) 0%, rgba(5, 7, 9, .03) 34%, rgba(5, 7, 9, .08) 58%, rgba(5, 7, 9, .42) 100%),
    linear-gradient(90deg, rgba(5, 7, 9, .42), rgba(5, 7, 9, .02) 55%, rgba(5, 7, 9, .24));
}

.story-scroll {
  position: relative;
  z-index: 3;
  margin-top: 0;
  padding: 72px 14px 80px;
}

.intro-panel,
.text-card {
  width: min(430px, 100%);
  border-radius: 8px;
  background: var(--panel);
  backdrop-filter: blur(12px);
  box-shadow: 0 22px 70px rgba(0, 0, 0, .28);
}

.intro-panel {
  position: relative;
  z-index: 1;
  margin-top: 0;
  padding: 14px 0 16px;
  border: 0;
  background: transparent;
  backdrop-filter: none;
  box-shadow: none;
}

.intro-panel::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: -72px;
  bottom: 0;
  left: calc((100vw - 100%) / -2);
  width: 100vw;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(4, 6, 8, .88) 0%, rgba(4, 6, 8, .76) 58%, rgba(4, 6, 8, .68) 100%);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  box-shadow: 0 18px 64px rgba(0, 0, 0, .34);
}

.intro-panel::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, rgba(255,255,255,.72), rgba(255,255,255,.18), rgba(255,255,255,0));
}

.text-card {
  border: 1px solid rgba(255, 255, 255, .17);
}

.text-card {
  margin-top: calc(var(--hero-height) * 1.04);
  margin-bottom: calc(var(--hero-height) * .2);
  padding: 16px;
  transition: transform 1.05s cubic-bezier(.2, .86, .2, 1);
  will-change: transform;
}

.text-card:nth-child(even) {
  margin-left: auto;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .12em;
  text-transform: uppercase;
}

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

h1 {
  margin: 0;
  min-width: 0;
  overflow: hidden;
  font-size: 42px;
  line-height: .92;
  letter-spacing: 0;
  white-space: nowrap;
}

.product-title {
  width: calc(100vw - 28px);
  max-width: 520px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 56px;
  align-items: center;
  gap: 14px;
  margin-bottom: 12px;
}

.product-title span {
  width: 54px;
  height: 54px;
  transform: translateX(8px);
  display: grid;
  place-items: center;
  border: 5px solid #ff4a4a;
  border-radius: 50%;
  background: rgba(4, 6, 8, .74);
  color: #ff4a4a;
  font-size: 15px;
  font-weight: 1000;
  letter-spacing: 0;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, .08),
    0 0 24px rgba(255, 74, 74, .18);
}

h2 {
  margin-bottom: 9px;
  font-size: clamp(26px, 8vw, 42px);
  line-height: 1;
  letter-spacing: 0;
}

.intro-panel p:last-child,
.text-card p,
.section-head p,
.final-cta p,
.form-note {
  color: #d8e0e5;
  line-height: 1.45;
}

.intro-panel p:last-child {
  margin-bottom: 0;
  font-weight: 800;
  text-shadow: 0 2px 12px rgba(0, 0, 0, .62);
}

.text-card span {
  display: none;
}

.compare-section,
.final-section,
.final-cta {
  position: relative;
  z-index: 4;
  width: min(var(--max), calc(100% - 28px));
  margin: 0 auto;
}

.compare-section {
  padding: 54px 0 30px;
  background: var(--bg);
  box-shadow: 0 0 0 100vmax var(--bg);
  clip-path: inset(0 -100vmax);
}

.section-head {
  max-width: 720px;
  margin-bottom: 24px;
}

.compare-grid {
  display: grid;
  gap: 8px;
}

.compare-row {
  display: grid;
  grid-template-columns: 1fr 64px 64px;
  gap: 6px;
}

.compare-row > div {
  min-height: 48px;
  display: grid;
  align-items: center;
  padding: 10px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, .045);
}

.compare-row > div:first-child {
  border-radius: 8px 0 0 8px;
}

.compare-row > div:last-child {
  border-radius: 0 8px 8px 0;
}

.compare-head > div {
  min-height: 42px;
  background: rgba(255, 255, 255, .11);
  font-weight: 900;
}

.mark {
  justify-items: center;
  font-size: 13px;
  font-weight: 900;
}

.mark.yes {
  color: var(--green);
}

.mark.no {
  color: rgba(174, 184, 193, .38);
}

.final-section {
  min-height: 100svh;
  display: grid;
  align-items: end;
  padding: 42px 0 max(18px, env(safe-area-inset-bottom));
  background: var(--bg);
  box-shadow: 0 0 0 100vmax var(--bg);
  clip-path: inset(0 -100vmax);
}

.final-cta {
  width: 100%;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--solid);
}

.question-button,
.submit-button {
  width: 100%;
  min-height: 52px;
  border-radius: 8px;
  background: var(--accent);
  color: var(--accent-text);
  font-weight: 1000;
}

.chat-dialog {
  width: min(520px, calc(100% - 24px));
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: transparent;
  color: var(--text);
}

.chat-dialog::backdrop {
  background: rgba(0, 0, 0, .72);
  backdrop-filter: blur(8px);
}

.chat-box {
  position: relative;
  display: grid;
  gap: 14px;
  padding: 24px;
  background: #101418;
}

.close-button {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .1);
  font-size: 24px;
}

label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 800;
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, .06);
  color: var(--text);
  padding: 12px;
}

textarea {
  resize: vertical;
}

.form-note {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

@media (min-width: 720px) {
  :root {
    --scene-height: 100vh;
  }

  .topbar {
    left: 50%;
    right: auto;
    width: min(620px, calc(100% - 40px));
    transform: translateX(-50%);
  }

  .story-scroll {
    width: min(var(--max), calc(100% - 56px));
    margin-left: auto;
    margin-right: auto;
    padding-left: 0;
    padding-right: 0;
  }

  .intro-panel,
  .text-card {
    width: 460px;
  }

  .intro-panel {
    width: min(700px, 100%);
  }

  .product-title {
    width: min(700px, 100%);
    max-width: none;
  }

  .text-card {
    margin-top: 76svh;
  }

  .final-cta {
    display: grid;
    grid-template-columns: 1fr 220px;
    gap: 28px;
    align-items: center;
  }
}