:root {
  color-scheme: light;
  --red: #cc0000;
  --red-dark: #9f1111;
  --ink: #161616;
  --muted: #5f6368;
  --line: #e8eaed;
  --paper: #ffffff;
  --soft: #f7f8fb;
  --warm: #fff7ed;
  --green: #176b4d;
  --blue: #1d4f91;
  --shadow: 0 18px 45px rgba(22, 22, 22, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(232, 234, 237, 0.9);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
}

.nav {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

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

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  color: #fff;
  background: var(--red);
  box-shadow: 0 10px 24px rgba(204, 0, 0, 0.22);
}

.brand-mark svg {
  width: 22px;
  height: 22px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 0.95rem;
}

.nav-links a {
  text-decoration: none;
  color: var(--muted);
  font-weight: 650;
}

.nav-links a:hover,
.nav-links a:focus {
  color: var(--red);
}

.hero {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  min-height: calc(100vh - 68px);
  padding: 58px 0 42px;
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(300px, 0.78fr);
  align-items: center;
  gap: 56px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--red-dark);
  font-weight: 800;
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
}

h1,
h2,
h3 {
  line-height: 1.12;
  margin: 0;
}

h1 {
  font-size: clamp(2.5rem, 7vw, 5.4rem);
  max-width: 780px;
  letter-spacing: 0;
}

h2 {
  font-size: clamp(1.85rem, 4vw, 3rem);
}

h3 {
  font-size: 1.15rem;
}

.lead {
  margin: 20px 0 0;
  max-width: 660px;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.25rem);
}

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

.button {
  min-height: 48px;
  border-radius: 8px;
  padding: 12px 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid var(--line);
  text-decoration: none;
  font-weight: 800;
  background: #fff;
}

.button.primary {
  color: #fff;
  background: var(--red);
  border-color: var(--red);
}

.button:hover,
.button:focus {
  transform: translateY(-1px);
}

.phone-wrap {
  justify-self: center;
  width: min(360px, 100%);
}

.phone {
  border: 10px solid #191919;
  border-radius: 34px;
  background: #fff;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.phone-top {
  height: 32px;
  background: #191919;
  display: flex;
  justify-content: center;
  align-items: start;
}

.speaker {
  width: 82px;
  height: 8px;
  border-radius: 999px;
  background: #303030;
  margin-top: 8px;
}

.app-screen {
  padding: 18px;
  min-height: 560px;
  background: linear-gradient(#fff, #f8fafc);
}

.app-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
  font-weight: 800;
}

.pill {
  padding: 5px 9px;
  border-radius: 999px;
  font-size: 0.78rem;
  color: var(--red-dark);
  background: #ffe8e8;
  font-weight: 800;
}

.mini-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  margin-bottom: 12px;
  background: #fff;
}

.mini-row {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  color: var(--muted);
  font-size: 0.88rem;
}

.mini-strong {
  display: block;
  margin-top: 4px;
  font-weight: 800;
  color: var(--ink);
}

.check-list {
  display: grid;
  gap: 10px;
  padding: 0;
  margin: 14px 0 0;
  list-style: none;
}

.check-list li {
  display: flex;
  align-items: center;
  gap: 10px;
}

.check {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: #fff;
  background: var(--green);
  font-size: 0.8rem;
  font-weight: 900;
  flex: 0 0 auto;
}

.section {
  padding: 72px 0;
}

.section.soft {
  background: var(--soft);
}

.section.warm {
  background: var(--warm);
}

.container {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.section-head {
  max-width: 760px;
  margin-bottom: 30px;
}

.section-head p {
  color: var(--muted);
  font-size: 1.08rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.feature {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
}

.feature-icon {
  width: 42px;
  height: 42px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  margin-bottom: 18px;
  color: #fff;
  background: var(--blue);
}

.feature:nth-child(2) .feature-icon {
  background: var(--green);
}

.feature:nth-child(3) .feature-icon {
  background: var(--red);
}

.feature:nth-child(4) .feature-icon {
  background: #6b4d9a;
}

.feature p {
  margin-bottom: 0;
  color: var(--muted);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 36px;
  align-items: start;
}

.info-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.info-list li {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.page-hero {
  background: var(--soft);
  border-bottom: 1px solid var(--line);
  padding: 64px 0;
}

.page-hero .container {
  max-width: 900px;
}

.content {
  max-width: 880px;
  margin: 0 auto;
  padding: 54px 16px 72px;
}

.content h2 {
  margin-top: 34px;
  font-size: 1.55rem;
}

.content p,
.content li {
  color: #3d4147;
}

.content a {
  color: var(--red-dark);
  font-weight: 750;
}

.notice {
  padding: 18px;
  border: 1px solid #fed7aa;
  border-radius: 8px;
  background: #fff7ed;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 28px 0;
  background: #fff;
}

.footer-inner {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  color: var(--muted);
  font-size: 0.95rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.footer-links a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 700;
}

.footer-links a:hover,
.footer-links a:focus {
  color: var(--red);
}

@media (max-width: 860px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
    padding: 14px 0;
  }

  .nav-links {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .hero,
  .split {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 42px;
  }

  .phone-wrap {
    width: min(330px, 92vw);
  }

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

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

@media (max-width: 560px) {
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .actions,
  .button {
    width: 100%;
  }

  .section {
    padding: 54px 0;
  }
}