:root {
  color-scheme: light;
  --ink: #08245c;
  --muted: #5d72a1;
  --blue: #0877ff;
  --blue-deep: #0059d6;
  --cyan: #6ed8ff;
  --yellow: #ffd233;
  --orange: #ff8a1f;
  --green: #24c76a;
  --purple: #7d62ff;
  --paper: #ffffff;
  --line: rgba(8, 36, 92, 0.1);
  --shadow: 0 24px 70px rgba(0, 82, 190, 0.18);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", "YuGothic", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 18% 6%, rgba(110, 216, 255, 0.55), transparent 30rem),
    radial-gradient(circle at 86% 18%, rgba(255, 210, 51, 0.26), transparent 22rem),
    linear-gradient(180deg, #eefaff 0%, #ffffff 46%, #eef7ff 100%);
}

a {
  color: var(--blue);
  font-weight: 800;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

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

.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(18px);
  background: rgba(245, 252, 255, 0.82);
  border-bottom: 1px solid var(--line);
}

.nav-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
}

.brand-mark {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  color: white;
  font-size: 26px;
  font-weight: 900;
  background: linear-gradient(135deg, #0aa3ff, #0067f6);
  box-shadow: 0 12px 24px rgba(0, 103, 246, 0.28);
}

.brand-text {
  display: grid;
  gap: 1px;
  line-height: 1.15;
}

.brand-text strong {
  font-size: 17px;
}

.brand-text span {
  font-size: 12px;
  color: var(--muted);
  font-weight: 700;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 14px;
}

.hero {
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  gap: 34px;
  align-items: center;
  padding: 72px 0 44px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  color: #074ea8;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(8, 119, 255, 0.14);
  box-shadow: 0 8px 24px rgba(8, 119, 255, 0.12);
  font-size: 14px;
  font-weight: 900;
}

h1 {
  margin: 18px 0 16px;
  font-size: clamp(44px, 8vw, 86px);
  line-height: 0.98;
  letter-spacing: 0;
}

.hero-lead {
  max-width: 620px;
  margin: 0;
  color: #334d83;
  font-size: clamp(17px, 2.4vw, 22px);
  line-height: 1.9;
  font-weight: 700;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 18px;
  color: white;
  background: linear-gradient(135deg, var(--blue), var(--blue-deep));
  box-shadow: 0 16px 32px rgba(0, 103, 246, 0.25);
}

.button.secondary {
  color: var(--blue);
  background: white;
  box-shadow: inset 0 0 0 1px rgba(8, 119, 255, 0.18), 0 12px 28px rgba(8, 36, 92, 0.08);
}

.hero-card {
  position: relative;
  min-height: 620px;
  border-radius: 36px;
  padding: 28px;
  overflow: hidden;
  background: linear-gradient(150deg, #0d90ff 0%, #0068ee 54%, #35c8ff 100%);
  color: white;
  box-shadow: var(--shadow);
}

.hero-card::before,
.hero-card::after {
  content: "";
  position: absolute;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.18);
}

.hero-card::before {
  width: 360px;
  height: 360px;
  right: -180px;
  top: -130px;
}

.hero-card::after {
  width: 260px;
  height: 260px;
  left: -130px;
  bottom: -110px;
}

.phone {
  position: relative;
  z-index: 1;
  width: min(330px, 82%);
  margin: 0 auto;
  border-radius: 42px;
  padding: 12px;
  background: #08142e;
  box-shadow: 0 28px 60px rgba(0, 19, 58, 0.34);
  transform: rotate(4deg);
}

.phone-screen {
  min-height: 560px;
  overflow: hidden;
  border-radius: 32px;
  background: #f7fcff;
  color: var(--ink);
}

.app-hero {
  padding: 26px 22px 18px;
  color: white;
  background: linear-gradient(135deg, #1bb1ff, #0668f2);
}

.app-title {
  margin-top: 36px;
  font-size: 34px;
  line-height: 1.05;
  font-weight: 1000;
}

.app-subtitle {
  margin-top: 12px;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.17);
  font-size: 13px;
  font-weight: 900;
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  padding: 18px 12px;
  background: white;
}

.stat {
  text-align: center;
  border-right: 1px solid var(--line);
}

.stat:last-child {
  border-right: 0;
}

.stat strong {
  display: block;
  margin-top: 4px;
  font-size: 20px;
}

.mini-card {
  margin: 16px;
  padding: 18px;
  border-radius: 22px;
  background: white;
  box-shadow: 0 10px 26px rgba(8, 36, 92, 0.08);
  font-weight: 900;
}

.challenge {
  margin: 16px;
  padding: 20px;
  text-align: center;
  border-radius: 24px;
  color: white;
  background: linear-gradient(135deg, #0877ff, #0058dd);
  font-size: 24px;
  font-weight: 1000;
}

.floating-badge {
  position: absolute;
  z-index: 2;
  right: 28px;
  bottom: 34px;
  width: 144px;
  padding: 18px;
  border-radius: 26px;
  color: var(--ink);
  background: white;
  box-shadow: 0 22px 45px rgba(0, 36, 96, 0.22);
  transform: rotate(-5deg);
}

.floating-badge strong {
  display: block;
  color: var(--orange);
  font-size: 28px;
}

.section {
  padding: 44px 0;
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 20px;
}

h2 {
  margin: 0;
  font-size: clamp(28px, 4.5vw, 44px);
  line-height: 1.12;
}

.section-head p,
.section-lead {
  max-width: 640px;
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.8;
  font-weight: 700;
}

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

.feature-card,
.doc-card,
.support-card {
  border: 1px solid rgba(8, 36, 92, 0.08);
  border-radius: 26px;
  padding: 22px;
  background: rgba(255, 255, 255, 0.84);
  box-shadow: 0 16px 42px rgba(8, 36, 92, 0.08);
}

.feature-icon {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  margin-bottom: 14px;
  border-radius: 18px;
  color: white;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  font-size: 28px;
  font-weight: 1000;
}

.feature-card:nth-child(2) .feature-icon { background: linear-gradient(135deg, #15c46b, #7ee66f); }
.feature-card:nth-child(3) .feature-icon { background: linear-gradient(135deg, #ffbf22, #ff8617); }
.feature-card:nth-child(4) .feature-icon { background: linear-gradient(135deg, #7d62ff, #2ec8d3); }

.feature-card h3,
.doc-card h3,
.support-card h3 {
  margin: 0 0 8px;
  font-size: 18px;
}

.feature-card p,
.doc-card p,
.support-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
  font-weight: 650;
}

.mode-strip {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
}

.mode-pill {
  padding: 14px 12px;
  border-radius: 18px;
  text-align: center;
  background: white;
  box-shadow: 0 12px 26px rgba(8, 36, 92, 0.07);
  font-weight: 900;
}

.plus {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  align-items: stretch;
}

.plus-panel {
  padding: 30px;
  border-radius: 30px;
  color: white;
  background: linear-gradient(135deg, #075fff, #043cb6);
  box-shadow: var(--shadow);
}

.plus-panel h2 {
  color: white;
}

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

.check-list li {
  position: relative;
  padding-left: 32px;
  line-height: 1.7;
  font-weight: 800;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45em;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: inset 0 0 0 5px rgba(255, 255, 255, 0.55);
}

.doc-layout {
  width: min(900px, calc(100% - 32px));
  margin: 0 auto;
  padding: 54px 0;
}

.doc-hero {
  margin-bottom: 18px;
  padding: 30px;
  border-radius: 30px;
  color: white;
  background: linear-gradient(135deg, #1098ff, #0759dc);
  box-shadow: var(--shadow);
}

.doc-hero h1 {
  margin: 0 0 10px;
  font-size: clamp(30px, 5vw, 46px);
}

.doc-hero p {
  margin: 0;
  line-height: 1.8;
  font-weight: 750;
}

.article {
  padding: 32px;
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 18px 48px rgba(8, 36, 92, 0.09);
}

.article h2 {
  margin-top: 30px;
  font-size: 22px;
}

.article h2:first-child {
  margin-top: 0;
}

.article p,
.article li {
  color: #2f4578;
  line-height: 1.9;
  font-weight: 650;
}

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

.footer {
  margin-top: 56px;
  padding: 28px 0 40px;
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: 14px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
}

@media (max-width: 860px) {
  .hero,
  .plus {
    grid-template-columns: 1fr;
  }

  .hero-card {
    min-height: 560px;
  }

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

  .mode-strip {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 640px) {
  .nav-inner {
    align-items: flex-start;
    flex-direction: column;
    padding: 14px 0;
  }

  .nav-links {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .hero {
    padding-top: 40px;
  }

  .hero-card {
    min-height: 500px;
    padding: 18px;
  }

  .phone {
    width: 92%;
  }

  .floating-badge {
    right: 16px;
    bottom: 18px;
  }

  .grid,
  .mode-strip {
    grid-template-columns: 1fr;
  }

  .article,
  .doc-hero {
    padding: 24px;
  }
}