:root {
  --paper: #fbfae9;
  --paper-2: #fffef2;
  --ink: #171712;
  --muted: #77766a;
  --line: rgba(23, 23, 18, 0.13);
  --green: #2f8d50;
  --green-dark: #0d5d49;
  --shadow: 0 28px 80px rgba(30, 28, 18, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  background: var(--paper);
  color: var(--ink);
  font-family:
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "SF Pro Display",
    "Helvetica Neue",
    Arial,
    sans-serif;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
}

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

.site-header {
  align-items: center;
  background: rgba(255, 254, 242, 0.72);
  border: 1px solid var(--line);
  border-radius: 13px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 28px;
  left: 50%;
  max-width: 1056px;
  padding: 10px 10px 10px 18px;
  position: fixed;
  top: 24px;
  transform: translateX(-50%);
  width: calc(100% - 48px);
  z-index: 10;
  backdrop-filter: blur(18px);
}

.brand {
  align-items: center;
  display: inline-flex;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 25px;
  gap: 10px;
  justify-self: start;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.brand-icon {
  border-radius: 8px;
  box-shadow: 0 6px 18px rgba(25, 24, 18, 0.14);
  display: block;
  height: 34px;
  object-fit: cover;
  width: 34px;
}

.nav-links {
  align-items: center;
  display: flex;
  font-size: 15px;
  font-weight: 650;
  gap: 46px;
  justify-content: center;
}

.nav-links a {
  color: rgba(23, 23, 18, 0.84);
}

.header-cta,
.download-menu summary {
  align-items: center;
  background: #151511;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 10px;
  color: #fff;
  display: inline-flex;
  font-weight: 750;
  gap: 10px;
  justify-content: center;
  letter-spacing: -0.01em;
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.16);
}

.header-cta {
  font-size: 15px;
  justify-self: end;
  min-height: 48px;
  padding: 0 24px;
}

.download-menu {
  display: inline-block;
  position: relative;
}

.download-menu details {
  position: relative;
}

.download-menu summary {
  cursor: pointer;
  font-size: 22px;
  list-style: none;
  min-height: 78px;
  min-width: 390px;
  padding: 0 42px;
  user-select: none;
}

.download-menu summary::-webkit-details-marker {
  display: none;
}

.download-menu summary::after {
  border-bottom: 2px solid currentColor;
  border-right: 2px solid currentColor;
  content: "";
  height: 8px;
  margin-left: 6px;
  transform: rotate(45deg) translateY(-2px);
  width: 8px;
}

.download-options {
  background: rgba(255, 254, 246, 0.96);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow);
  display: grid;
  gap: 8px;
  left: 50%;
  margin-top: 12px;
  min-width: 390px;
  padding: 10px;
  position: absolute;
  text-align: left;
  transform: translateX(-50%);
  z-index: 5;
  backdrop-filter: blur(18px);
}

.download-options a {
  border-radius: 10px;
  display: grid;
  gap: 3px;
  padding: 14px 16px;
}

.download-options a:hover {
  background: rgba(23, 23, 18, 0.06);
}

.download-options a[aria-disabled="true"] {
  cursor: default;
  opacity: 0.72;
}

.download-options a[aria-disabled="true"]:hover {
  background: transparent;
}

.download-options strong {
  font-size: 16px;
}

.download-options span {
  color: var(--muted);
  font-size: 13px;
}

.hero {
  min-height: 100svh;
  overflow: hidden;
  padding: 194px 24px 98px;
  position: relative;
}

.hero::before {
  border: 1px solid rgba(23, 23, 18, 0.08);
  border-radius: 50%;
  content: "";
  height: 520px;
  left: 50%;
  position: absolute;
  top: 54%;
  transform: translate(-50%, -50%) rotate(-5deg);
  width: 1380px;
}

.hero-inner {
  margin: 0 auto;
  max-width: 960px;
  position: relative;
  text-align: center;
  z-index: 2;
}

.hero h1 {
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(72px, 9vw, 126px);
  font-weight: 400;
  letter-spacing: -0.07em;
  line-height: 0.9;
  margin: 0;
}

.hero h1 em {
  color: var(--green);
  font-style: italic;
  letter-spacing: -0.06em;
}

.hero-copy {
  color: rgba(23, 23, 18, 0.62);
  font-size: clamp(20px, 2.2vw, 28px);
  letter-spacing: -0.03em;
  line-height: 1.22;
  margin: 42px auto 30px;
  max-width: 740px;
}

.trust-line {
  color: rgba(23, 23, 18, 0.52);
  font-size: 17px;
  margin: 22px 0 58px;
}

.demo-card {
  align-items: center;
  background: rgba(255, 254, 246, 0.88);
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: var(--shadow);
  display: grid;
  grid-template-columns: auto 1fr auto 1fr;
  gap: 28px;
  margin: 0 auto;
  max-width: 600px;
  padding: 26px 32px;
  text-align: left;
  backdrop-filter: blur(16px);
}

.demo-icon {
  border-radius: 18px;
  box-shadow: 0 14px 36px rgba(30, 28, 18, 0.16);
  display: block;
  height: 78px;
  object-fit: cover;
  width: 78px;
}

.demo-column strong {
  color: rgba(23, 23, 18, 0.48);
  display: block;
  font-size: 12px;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.demo-column p {
  font-size: 22px;
  letter-spacing: -0.03em;
  line-height: 1.16;
  margin: 0;
}

.demo-column b {
  border-right: 2px solid var(--green);
  display: inline-block;
  height: 24px;
  margin-left: 6px;
  transform: translateY(5px);
}

.demo-arrow {
  color: rgba(23, 23, 18, 0.45);
  font-size: 42px;
  font-family: Georgia, "Times New Roman", serif;
}

.speech-ribbon {
  color: rgba(23, 23, 18, 0.30);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 22px;
  font-style: italic;
  line-height: 1.35;
  margin: 0;
  position: absolute;
  width: 390px;
  z-index: 1;
}

.ribbon-left {
  left: 3vw;
  top: 42%;
  transform: rotate(54deg);
}

.ribbon-right {
  right: 3vw;
  top: 58%;
  transform: rotate(-16deg);
}

.feature-band {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0 auto;
  max-width: 1120px;
  padding: 24px 24px 120px;
}

.feature-band article {
  background: rgba(255, 254, 246, 0.72);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 28px;
}

.feature-icon {
  align-items: center;
  background: var(--green-dark);
  border-radius: 999px;
  color: #fff;
  display: inline-flex;
  font-size: 19px;
  height: 38px;
  justify-content: center;
  margin-bottom: 40px;
  width: 38px;
}

.feature-band h2 {
  font-size: 22px;
  letter-spacing: -0.03em;
  margin: 0 0 10px;
}

.feature-band p {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.5;
  margin: 0;
}

@media (max-width: 860px) {
  .site-header {
    grid-template-columns: 1fr;
    justify-items: center;
    width: calc(100% - 32px);
  }

  .nav-links {
    display: none;
  }

  .header-cta {
    display: none;
  }

  .hero {
    padding: 150px 18px 88px;
  }

  .hero-inner {
    max-width: 100%;
    overflow: hidden;
  }

  .hero h1 {
    font-size: clamp(48px, 14vw, 64px);
    letter-spacing: -0.045em;
    margin-left: auto;
    margin-right: auto;
    max-width: 360px;
  }

  .hero-copy {
    font-size: 18px;
    max-width: 280px;
  }

  .download-menu,
  .download-menu details {
    display: block;
  }

  .download-menu summary {
    display: flex;
    margin-left: auto;
    margin-right: auto;
    min-width: 0;
    min-height: 68px;
    font-size: 20px;
    width: min(100%, 280px);
  }

  .download-options {
    min-width: 0;
    width: min(100%, 316px);
  }

  .demo-card {
    grid-template-columns: 1fr;
    max-width: 420px;
    padding: 26px 22px;
    text-align: center;
    width: 100%;
  }

  .demo-icon,
  .demo-arrow {
    margin: 0 auto;
  }

  .speech-ribbon {
    display: none;
  }

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