:root {
  color-scheme: light;
  --black: #000000;
  --white: #ffffff;
  --red: #e00000;
  --card-border: #bdbdbd;
  --control-border: #cfcfcf;
  --inner-border: #dedede;
}

* {
  box-sizing: border-box;
}

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

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px clamp(20px, 5vw, 64px);
  background: var(--white);
  border-bottom: 1px solid var(--black);
}

.brand,
.nav,
.actions,
.trust-line,
.site-footer,
.chips {
  display: flex;
  align-items: center;
}

.brand {
  gap: 14px;
  font-size: 18px;
  font-weight: 800;
  text-decoration: none;
}

.brand-icon {
  width: 68px;
  height: 68px;
  object-fit: contain;
}

.nav {
  gap: 22px;
  font-size: 14px;
}

.nav a {
  text-decoration: none;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.66fr);
  gap: clamp(28px, 6vw, 76px);
  align-items: center;
  min-height: calc(100svh - 67px);
  padding: clamp(40px, 6vw, 74px) clamp(20px, 5vw, 64px);
}

.hero h1,
.section h2,
.page h1 {
  margin: 0;
  letter-spacing: 0;
  line-height: 1.02;
}

.hero h1 {
  max-width: 820px;
  font-size: clamp(48px, 7.4vw, 94px);
}

.lede {
  max-width: 700px;
  margin: 22px 0 0;
  font-size: 20px;
  line-height: 1.55;
}

.human-line {
  margin: 14px 0 0;
  font-size: 18px;
  font-weight: 800;
}

.eyebrow {
  margin: 0 0 14px;
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.actions {
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid var(--black);
  font-weight: 800;
  text-decoration: none;
  transition:
    background 180ms ease,
    box-shadow 180ms ease,
    color 180ms ease,
    transform 180ms ease;
}

.button.primary {
  color: var(--white);
  background: var(--black);
}

.button.secondary {
  color: var(--black);
  background: var(--white);
  border-color: var(--control-border);
}

.button:hover,
.button:focus-visible {
  color: var(--white);
  background: var(--black);
  box-shadow:
    0 0 8px rgba(0, 0, 0, 0.44),
    0 0 18px rgba(0, 0, 0, 0.24);
}

.trust-line {
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.trust-line span,
.chips span {
  padding: 7px 10px;
  border: 1px solid var(--control-border);
  font-size: 13px;
  font-weight: 800;
  transition:
    background 180ms ease,
    box-shadow 180ms ease,
    color 180ms ease,
    transform 180ms ease;
}

.trust-line span:hover,
.trust-line span:focus-visible,
.chips span:hover,
.chips span:focus-visible {
  color: var(--white);
  background: var(--black);
  border-color: var(--black);
  box-shadow:
    0 0 8px rgba(0, 0, 0, 0.44),
    0 0 18px rgba(0, 0, 0, 0.24);
}

.product-panel {
  width: min(100%, 410px);
  justify-self: center;
  overflow: hidden;
  border: 1px solid var(--black);
  background: var(--white);
  box-shadow: 10px 10px 0 var(--black);
}

.panel-top {
  display: flex;
  gap: 8px;
  padding: 12px;
  border-bottom: 1px solid var(--black);
}

.panel-top span,
.rule-list span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 1px solid var(--black);
  flex: 0 0 auto;
}

.extension-card {
  display: flex;
  gap: 20px;
  align-items: center;
  padding: 28px 24px;
}

.preview-icon {
  width: 150px;
  height: 150px;
  object-fit: contain;
}

.extension-card h2,
.extension-card p {
  margin: 0;
}

.extension-card h2 {
  margin-bottom: 6px;
  font-size: 26px;
}

.rule-list {
  display: grid;
  gap: 10px;
  padding: 0 22px 22px;
}

.rule-list div {
  display: flex;
  gap: 10px;
  align-items: center;
  padding: 11px;
  border: 1px solid var(--inner-border);
  font-weight: 700;
}

.section {
  padding: clamp(34px, 4.4vw, 56px) clamp(20px, 5vw, 64px);
  border-top: 1px solid var(--black);
}

.page-section {
  min-height: 0;
}

.section-heading {
  max-width: 760px;
}

.section h2 {
  font-size: clamp(34px, 5vw, 58px);
}

.features {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 26px;
}

.features article,
.trust-grid section,
.works-row {
  position: relative;
  overflow: hidden;
  padding: 18px;
  border: 1px solid var(--card-border);
  background: var(--white);
  transition:
    border-color 250ms ease,
    box-shadow 250ms ease,
    opacity 250ms ease,
    transform 250ms ease;
}

.features:hover article,
.trust-grid:hover section {
  opacity: 0.72;
}

.features article:hover,
.features article:focus-within,
.trust-grid section:hover,
.trust-grid section:focus-within,
.works-row:hover,
.works-row:focus-within {
  opacity: 1;
  transform: translateY(-6px);
  border-color: var(--card-border);
  box-shadow:
    0 18px 44px rgba(0, 0, 0, 0.07),
    0 0 0 5px rgba(0, 0, 0, 0.018);
}

.features article::before,
.trust-grid section::before,
.works-row::before {
  content: "";
  position: absolute;
  top: -70%;
  left: -85%;
  z-index: 0;
  width: 60%;
  height: 240%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.15),
    rgba(235, 235, 235, 0.85),
    rgba(255, 255, 255, 0.25),
    transparent
  );
  pointer-events: none;
  transform: rotate(18deg);
  transition: left 650ms ease;
}

.features article:hover::before,
.features article:focus-within::before,
.trust-grid section:hover::before,
.trust-grid section:focus-within::before,
.works-row:hover::before,
.works-row:focus-within::before {
  left: 130%;
}

.features article::after,
.trust-grid section::after,
.works-row::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: radial-gradient(
    circle at 50% 0%,
    rgba(245, 245, 245, 0.9),
    transparent 42%
  );
  opacity: 0;
  pointer-events: none;
  transition: opacity 250ms ease;
}

.features article:hover::after,
.features article:focus-within::after,
.trust-grid section:hover::after,
.trust-grid section:focus-within::after,
.works-row:hover::after,
.works-row:focus-within::after {
  opacity: 1;
}

.features article h3,
.features article p,
.trust-grid h3,
.trust-grid p,
.works-row .chips,
.works-row h3 {
  position: relative;
  z-index: 1;
}

.features article h3,
.trust-grid h3,
.works-row h3 {
  transition:
    color 180ms ease,
    transform 180ms ease;
}

.features article:hover h3,
.features article:focus-within h3,
.trust-grid section:hover h3,
.trust-grid section:focus-within h3,
.works-row:hover h3,
.works-row:focus-within h3 {
  transform: translateX(2px);
}

.features h3,
.trust-grid h3,
.works-row h3 {
  margin: 0 0 8px;
}

.features p,
.trust-grid p,
.page p,
.page li {
  margin: 0;
  line-height: 1.6;
}

.features article:hover p,
.features article:focus-within p,
.trust-grid section:hover p,
.trust-grid section:focus-within p {
  color: var(--black);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 26px;
}

.works-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 14px;
}

.works-row h3 {
  margin: 0;
}

.chips {
  flex-wrap: wrap;
  gap: 8px;
}

.works-row .chips span {
  border-color: var(--inner-border);
}

.page {
  max-width: 760px;
}

.page h1 {
  margin-bottom: 24px;
  font-size: clamp(42px, 7vw, 72px);
}

.page h2 {
  margin: 34px 0 12px;
  font-size: 24px;
}

.page p,
.page li {
  font-size: 18px;
}

.page ul {
  padding-left: 22px;
}

.site-footer {
  gap: 18px;
  padding: 24px clamp(20px, 5vw, 64px);
  border-top: 1px solid var(--black);
}

.site-footer span {
  margin-right: auto;
  font-weight: 800;
}

.love,
.heart {
  color: var(--red);
}

.heart {
  margin-left: 6px;
}

.site-footer .heart {
  margin: 0;
  color: var(--red);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 1ms !important;
    animation-duration: 1ms !important;
    scroll-behavior: auto !important;
  }
}

@media (max-width: 980px) {
  .hero,
  .features,
  .trust-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .page-section {
    display: block;
  }

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

  .product-panel {
    justify-self: start;
  }
}

@media (max-width: 680px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav {
    flex-wrap: wrap;
  }

  .brand-icon {
    width: 52px;
    height: 52px;
  }

  .preview-icon {
    width: 112px;
    height: 112px;
  }

  .hero h1 {
    font-size: clamp(42px, 13vw, 64px);
  }
}