:root {
  color-scheme: light;
  --ink: #111317;
  --muted: #626878;
  --quiet: #8c91a0;
  --line: #d9dde4;
  --paper: #f7f5ef;
  --surface: #ffffff;
  --dark: #101115;
  --dark-card: #1a1b21;
  --accent: #6689e8;
  --accent-strong: #4f72d4;
  --green: #168044;
  --gold: #d9a433;
  --shadow: 0 22px 60px rgba(17, 19, 23, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

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

a {
  color: inherit;
}

.topbar {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
  padding: 18px clamp(18px, 5vw, 64px);
  color: #ffffff;
  background: linear-gradient(180deg, rgba(17, 19, 23, 0.76), rgba(17, 19, 23, 0));
}

.topbar.on-light {
  position: sticky;
  color: var(--ink);
  background: rgba(247, 245, 239, 0.92);
  border-bottom: 1px solid rgba(217, 221, 228, 0.76);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1rem;
  text-decoration: none;
}

.brand img {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.18);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex: 1 1 360px;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 0.92rem;
  font-weight: 750;
}

.nav a {
  text-decoration: none;
  opacity: 0.86;
  white-space: nowrap;
}

.nav a:hover,
.nav a.active {
  opacity: 1;
}

.hero {
  overflow: hidden;
  color: #ffffff;
  background:
    radial-gradient(circle at 78% 38%, rgba(102, 137, 232, 0.22), rgba(102, 137, 232, 0) 32%),
    linear-gradient(135deg, #111317 0%, #181920 58%, #101115 100%);
}

.hero-content {
  width: min(1180px, calc(100% - 36px));
  min-height: 88vh;
  margin: 0 auto;
  padding: 132px 0 76px;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1.1fr);
  gap: clamp(32px, 6vw, 72px);
  align-items: center;
}

.hero-copy {
  max-width: 620px;
}

.eyebrow {
  margin: 0 0 14px;
  color: #b9c8ff;
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
.page-hero h1 {
  margin: 0;
  font-size: clamp(3.7rem, 8vw, 8.4rem);
  line-height: 0.86;
  letter-spacing: 0;
}

.hero-copy p {
  width: min(560px, 100%);
  margin: 28px 0 0;
  color: rgba(255, 255, 255, 0.84);
  font-size: clamp(1.08rem, 2vw, 1.32rem);
}

.actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: #ffffff;
  background: var(--accent);
  font-weight: 800;
  text-decoration: none;
  box-shadow: 0 18px 34px rgba(0, 0, 0, 0.24);
}

.button.secondary {
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(14px);
}

.phone-stack {
  position: relative;
  min-height: 710px;
}

.phone {
  position: absolute;
  width: min(286px, 31vw);
  border-radius: 34px;
  background: #101115;
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.5);
}

.phone-home {
  left: 4%;
  top: 5%;
  z-index: 3;
}

.phone-templates {
  left: 35%;
  top: 0;
  z-index: 2;
}

.phone-charts {
  right: 0;
  top: 10%;
  z-index: 1;
}

main {
  background: var(--paper);
}

.section {
  padding: clamp(64px, 9vw, 112px) clamp(18px, 5vw, 64px);
}

.section-inner,
.page-inner {
  width: min(1120px, 100%);
  margin: 0 auto;
}

.section h2 {
  max-width: 800px;
  margin: 0;
  font-size: clamp(2rem, 4vw, 4.4rem);
  line-height: 0.98;
  letter-spacing: 0;
}

.section-lead {
  max-width: 720px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 1.1rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin-top: 42px;
  border: 1px solid var(--line);
  background: var(--line);
}

.feature {
  min-height: 190px;
  padding: 24px;
  background: var(--surface);
}

.feature strong {
  display: block;
  margin-bottom: 12px;
  font-size: 1.02rem;
}

.feature p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.gallery {
  background: var(--surface);
}

.screens {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: start;
  gap: clamp(16px, 3vw, 34px);
  margin-top: 44px;
}

.screen {
  margin: 0;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #f0ede5;
  box-shadow: var(--shadow);
}

.screen img {
  width: 100%;
  border-radius: 12px;
}

.screen figcaption {
  margin: 14px 4px 2px;
  color: var(--muted);
  font-size: 0.92rem;
}

.support-band {
  color: #ffffff;
  background: #182338;
}

.support-band h2,
.support-band p {
  color: #ffffff;
}

.support-band .section-lead {
  opacity: 0.78;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(260px, 0.45fr);
  gap: 36px;
  align-items: center;
}

.link-panel {
  display: grid;
  gap: 10px;
}

.link-panel a {
  display: block;
  padding: 16px 18px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
  font-weight: 800;
  text-decoration: none;
}

.page-hero {
  padding: 88px clamp(18px, 5vw, 64px) 54px;
  background: var(--paper);
}

.page-hero h1 {
  color: var(--ink);
  font-size: clamp(3rem, 7vw, 6.4rem);
}

.page-hero p {
  max-width: 760px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 1.16rem;
}

.content {
  padding: 28px clamp(18px, 5vw, 64px) 96px;
}

.content-grid {
  width: min(1120px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 44px;
}

.side-nav {
  position: sticky;
  top: 86px;
  align-self: start;
  display: grid;
  gap: 8px;
}

.side-nav a {
  padding: 10px 12px;
  border-radius: 8px;
  color: var(--muted);
  text-decoration: none;
  font-weight: 750;
}

.side-nav a:hover {
  color: var(--ink);
  background: rgba(17, 19, 23, 0.06);
}

.article {
  display: grid;
  gap: 26px;
}

.doc-section,
.faq-item,
.policy-section,
.contact-card {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.doc-section h2,
.faq-item h2,
.policy-section h2,
.contact-card h2 {
  margin: 0 0 12px;
  font-size: clamp(1.4rem, 3vw, 2rem);
}

.doc-section h3,
.policy-section h3 {
  margin: 22px 0 8px;
  font-size: 1.08rem;
}

.doc-section p,
.faq-item p,
.policy-section p,
.contact-card p {
  margin: 0 0 12px;
  color: var(--muted);
}

.doc-section p:last-child,
.faq-item p:last-child,
.policy-section p:last-child,
.contact-card p:last-child {
  margin-bottom: 0;
}

.doc-section ul,
.policy-section ul {
  margin: 12px 0 0;
  padding-left: 20px;
  color: var(--muted);
}

.doc-section li,
.policy-section li {
  margin: 7px 0;
}

.faq-list {
  width: min(880px, 100%);
  margin: 0 auto;
  display: grid;
  gap: 16px;
}

.faq-item h2 {
  font-size: 1.18rem;
}

.contact-card {
  color: #ffffff;
  background: #182338;
}

.contact-card p {
  color: rgba(255, 255, 255, 0.76);
}

.contact-card a {
  color: #ffffff;
  font-weight: 800;
}

.policy {
  width: min(880px, 100%);
  margin: 0 auto;
  display: grid;
  gap: 18px;
}

footer {
  padding: 26px clamp(18px, 5vw, 64px);
  color: var(--muted);
  background: var(--surface);
  font-size: 0.9rem;
}

.footer-inner {
  width: min(1120px, 100%);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

footer nav {
  display: flex;
  gap: 16px;
}

footer a {
  text-decoration: none;
  font-weight: 750;
}

@media (max-width: 900px) {
  .topbar {
    position: absolute;
  }

  .topbar.on-light {
    position: sticky;
  }

  .nav {
    gap: 12px;
    font-size: 0.84rem;
    justify-content: flex-end;
  }

  .hero-content {
    min-height: auto;
    padding: 112px 0 56px;
    grid-template-columns: 1fr;
  }

  .phone-stack {
    min-height: 470px;
    order: -1;
  }

  .phone {
    width: min(230px, 45vw);
    border-radius: 24px;
  }

  .phone-home {
    left: 0;
    top: 12px;
  }

  .phone-templates {
    left: 31%;
    top: 0;
  }

  .phone-charts {
    right: 0;
    top: 28px;
  }

  h1,
  .page-hero h1 {
    font-size: clamp(3.2rem, 18vw, 5.4rem);
  }

  .feature-grid,
  .screens,
  .split,
  .content-grid {
    grid-template-columns: 1fr;
  }

  .side-nav {
    position: static;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 620px) {
  .topbar {
    align-items: stretch;
    flex-direction: column;
    justify-content: flex-start;
    gap: 12px;
  }

  .brand span {
    display: none;
  }

  .nav {
    flex: 0 0 auto;
    width: 100%;
    justify-content: flex-start;
    flex-wrap: nowrap;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 2px;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }

  .nav::-webkit-scrollbar {
    display: none;
  }

  .nav a {
    flex: 0 0 auto;
    padding: 6px 9px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.1);
  }

  .topbar.on-light .nav a {
    background: rgba(17, 19, 23, 0.06);
  }

  .phone-stack {
    min-height: 410px;
  }

  .phone {
    width: min(190px, 48vw);
  }

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

  .side-nav {
    grid-template-columns: 1fr;
  }
}