:root {
  color: #edf8f7;
  background: #071013;
  color-scheme: dark;
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  --bg: #071013;
  --panel: rgba(16, 29, 34, 0.88);
  --panel-strong: #14252b;
  --line: rgba(137, 241, 255, 0.2);
  --line-strong: rgba(137, 241, 255, 0.36);
  --text: #edf8f7;
  --muted: #9bb0b3;
  --subtle: #6f8589;
  --cyan: #2df4ff;
  --lime: #a7ff4f;
  --amber: #ffcf5a;
  --red: #ff5d6c;
  --accent-text: #061114;
  --radius: 8px;
  --shadow: 0 26px 80px rgba(0, 0, 0, 0.34);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  background:
    radial-gradient(circle at 76% 12%, rgba(167, 255, 79, 0.16), transparent 24rem),
    radial-gradient(circle at 18% 24%, rgba(45, 244, 255, 0.13), transparent 28rem),
    linear-gradient(160deg, #071013 0%, #0b1718 52%, #130d12 100%);
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
  padding: 14px clamp(16px, 4vw, 56px);
  background: rgba(7, 16, 19, 0.86);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  gap: 12px;
  align-items: center;
  min-width: 0;
}

.brand img {
  width: 44px;
  height: 44px;
  filter: drop-shadow(0 0 18px rgba(45, 244, 255, 0.28));
}

.brand span {
  display: grid;
  gap: 1px;
  min-width: 0;
}

.brand strong {
  font-size: 23px;
  font-weight: 900;
  line-height: 1;
}

.brand small {
  color: var(--muted);
  font-size: 12px;
  font-weight: 750;
  line-height: 1.1;
}

nav {
  display: flex;
  gap: 6px;
}

nav a {
  min-height: 38px;
  padding: 9px 12px;
  color: var(--muted);
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 800;
}

nav a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--line);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(360px, 1.18fr);
  gap: clamp(24px, 5vw, 72px);
  align-items: center;
  min-height: calc(100svh - 74px);
  padding: clamp(36px, 7vw, 86px) clamp(16px, 5vw, 72px) 46px;
}

.hero__copy {
  display: grid;
  gap: 18px;
  max-width: 660px;
}

.eyebrow {
  margin: 0;
  color: var(--lime);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

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

h1 {
  color: var(--text);
  font-size: clamp(68px, 12vw, 156px);
  font-weight: 950;
  letter-spacing: 0;
  line-height: 0.84;
}

h2 {
  color: var(--text);
  font-size: clamp(30px, 5vw, 56px);
  letter-spacing: 0;
  line-height: 1.02;
}

h3 {
  color: var(--text);
  font-size: 20px;
  line-height: 1.14;
}

p {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.6;
}

.hero__summary {
  color: #c9dcdd;
  max-width: 560px;
  font-size: clamp(18px, 2.1vw, 24px);
  line-height: 1.36;
}

.hero__actions,
.download {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.button {
  display: inline-flex;
  justify-content: center;
  gap: 9px;
  align-items: center;
  min-height: 46px;
  padding: 12px 16px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-weight: 900;
  line-height: 1;
}

.button svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2.2;
}

.button--primary {
  color: var(--accent-text);
  background: linear-gradient(135deg, var(--cyan), var(--lime));
  border-color: rgba(167, 255, 79, 0.56);
  box-shadow: 0 14px 36px rgba(45, 244, 255, 0.16);
}

.button--secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.055);
  border-color: var(--line);
}

.product-visual {
  position: relative;
  display: grid;
  align-items: center;
  min-width: 0;
}

.phone-shell {
  display: grid;
  gap: 14px;
  width: min(720px, 100%);
  margin-left: auto;
  padding: 18px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.05), transparent 28%), rgba(12, 23, 27, 0.92);
  border: 1px solid var(--line-strong);
  border-radius: 30px;
  box-shadow: var(--shadow);
}

.phone-top {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
}

.phone-top span {
  width: 44px;
  height: 5px;
  background: rgba(255, 255, 255, 0.18);
  border-radius: 999px;
}

.phone-top strong {
  overflow: hidden;
  color: var(--text);
  font-size: 20px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.phone-top em {
  min-height: 28px;
  padding: 6px 9px;
  color: #cbffef;
  background: rgba(17, 194, 127, 0.16);
  border: 1px solid rgba(17, 194, 127, 0.3);
  border-radius: 999px;
  font-size: 11px;
  font-style: normal;
  font-weight: 900;
  text-transform: uppercase;
}

.chart {
  position: relative;
  min-height: 260px;
  overflow: hidden;
  background: #081215;
  border: 1px solid var(--line);
  border-radius: 18px;
}

.chart .zone {
  position: absolute;
  right: 0;
  left: 0;
  opacity: 0.62;
}

.zone--one {
  bottom: 0;
  height: 39%;
  background: #174944;
}

.zone--two {
  bottom: 39%;
  height: 29%;
  background: #60711e;
}

.zone--three {
  top: 0;
  height: 32%;
  background: #9a3a3f;
}

.chart svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.path {
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 8;
}

.path--remaining {
  stroke: rgba(176, 202, 209, 0.36);
}

.path--done {
  stroke: var(--cyan);
  filter: drop-shadow(0 0 10px rgba(45, 244, 255, 0.48));
}

.cursor {
  stroke: var(--red);
  stroke-width: 3;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.metrics div {
  display: grid;
  gap: 3px;
  min-width: 0;
  padding: 14px;
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.metrics span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.metrics strong {
  color: var(--text);
  font-size: clamp(30px, 5vw, 48px);
  line-height: 1;
}

.metrics small {
  color: var(--subtle);
  font-weight: 800;
}

.controls {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.controls button {
  min-height: 44px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font: inherit;
  font-weight: 900;
}

.features,
.download {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.not-found {
  display: grid;
  min-height: calc(100svh - 74px);
  place-items: center;
  padding: clamp(36px, 7vw, 86px) clamp(16px, 5vw, 72px);
}

.not-found__copy {
  display: grid;
  gap: 18px;
  width: min(720px, 100%);
}

.features {
  display: grid;
  gap: 28px;
  padding: 54px 0;
}

.section-heading {
  display: grid;
  gap: 10px;
  max-width: 760px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.feature-grid article {
  display: grid;
  gap: 10px;
  min-width: 0;
  padding: 18px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.feature-grid span {
  width: max-content;
  color: var(--amber);
  font-size: 13px;
  font-weight: 950;
}

.feature-grid p {
  font-size: 15px;
}

.download {
  justify-content: space-between;
  padding: 24px;
  background:
    linear-gradient(90deg, rgba(45, 244, 255, 0.12), rgba(167, 255, 79, 0.08)), var(--panel-strong);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
}

.download > div {
  display: grid;
  gap: 8px;
  max-width: 700px;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  width: min(1180px, calc(100% - 32px));
  margin: 34px auto 0;
  padding: 22px 0 34px;
  color: var(--subtle);
  border-top: 1px solid var(--line);
  font-size: 13px;
  font-weight: 800;
}

@media (max-width: 960px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 44px;
  }

  .product-visual {
    order: -1;
  }

  .phone-shell {
    margin: 0 auto;
  }

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

@media (max-width: 640px) {
  .site-header {
    align-items: stretch;
    flex-direction: column;
    gap: 10px;
  }

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

  nav a {
    text-align: center;
  }

  .brand small {
    font-size: 11px;
  }

  .hero {
    padding-right: 12px;
    padding-left: 12px;
  }

  .hero__actions,
  .download {
    align-items: stretch;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .phone-shell {
    padding: 12px;
    border-radius: 22px;
  }

  .chart {
    min-height: 210px;
  }

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

  .download {
    width: calc(100% - 24px);
    padding: 18px;
  }

  footer {
    flex-direction: column;
    width: calc(100% - 24px);
  }
}