:root {
  --blue: #0071e3;
  --blue-hover: #0077ed;
  --text: #1d1d1f;
  --muted: #6e6e73;
  --line: #d2d2d7;
  --soft: #f5f5f7;
  --white: #ffffff;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 7vw;
  background: rgba(255, 255, 255, 0.84);
  border-bottom: 1px solid rgba(210, 210, 215, 0.65);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand-mark {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 9px;
  color: #fff;
  background: linear-gradient(135deg, #0071e3, #55a8ff);
  font-size: 15px;
}

.nav {
  display: flex;
  gap: 26px;
}

.nav a {
  color: #424245;
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
}

.nav a:hover {
  color: var(--blue);
}

.hero {
  min-height: calc(100vh - 64px);
  display: grid;
  place-items: center;
  text-align: center;
  padding: 72px 22px;
  background:
    radial-gradient(circle at 50% 35%, rgba(0, 113, 227, 0.10), transparent 34%),
    linear-gradient(180deg, #fff 0%, #f7f9fc 100%);
}

.hero-content {
  max-width: 940px;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--blue);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

h1 {
  margin: 0;
  font-size: clamp(56px, 11vw, 128px);
  line-height: 0.9;
  letter-spacing: -0.075em;
  font-weight: 800;
}

.tagline {
  margin: 22px 0 34px;
  color: var(--muted);
  font-size: clamp(19px, 3vw, 30px);
  font-weight: 500;
  letter-spacing: -0.03em;
}

.primary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 26px;
  border-radius: 999px;
  background: var(--blue);
  color: #fff;
  text-decoration: none;
  font-size: 16px;
  font-weight: 600;
  box-shadow: 0 12px 30px rgba(0, 113, 227, 0.24);
  transition: transform 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.primary-button:hover {
  transform: translateY(-2px);
  background: var(--blue-hover);
  box-shadow: 0 16px 34px rgba(0, 113, 227, 0.30);
}

.section {
  max-width: 1120px;
  margin: 0 auto;
  padding: 110px 22px;
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 34px;
  align-items: stretch;
}

.section-label {
  margin: 0 0 14px;
  color: var(--blue);
  font-weight: 700;
  font-size: 14px;
}

.section h2 {
  margin: 0;
  max-width: 780px;
  font-size: clamp(34px, 5vw, 64px);
  line-height: 1.04;
  letter-spacing: -0.055em;
}

.section-text > p:last-child {
  max-width: 690px;
  margin: 26px 0 0;
  color: var(--muted);
  font-size: 19px;
  line-height: 1.55;
}

.info-card,
.principles article {
  background: var(--soft);
  border: 1px solid rgba(210, 210, 215, 0.55);
  border-radius: 30px;
  padding: 34px;
}

.info-card {
  box-shadow: var(--shadow);
}

.card-number {
  color: var(--blue);
  font-size: 14px;
  font-weight: 800;
}

.info-card h3,
.principles h3 {
  margin: 18px 0 10px;
  font-size: 24px;
  letter-spacing: -0.035em;
}

.info-card p,
.principles p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
  font-size: 16px;
}

.principles {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 22px 118px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.footer {
  border-top: 1px solid var(--line);
  padding: 34px 22px 42px;
  text-align: center;
  color: var(--muted);
}

.footer p {
  margin: 0 0 7px;
  color: var(--text);
  font-weight: 700;
}

.footer span {
  font-size: 14px;
}

@media (max-width: 760px) {
  .site-header {
    height: auto;
    min-height: 62px;
    padding: 14px 20px;
    align-items: flex-start;
    gap: 14px;
    flex-direction: column;
  }

  .nav {
    width: 100%;
    gap: 14px;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .nav a {
    white-space: nowrap;
  }

  .hero {
    min-height: 86vh;
    padding-top: 84px;
  }

  h1 {
    font-size: clamp(52px, 16vw, 76px);
  }

  .section,
  .principles {
    grid-template-columns: 1fr;
    padding-left: 18px;
    padding-right: 18px;
  }

  .section {
    padding-top: 82px;
    padding-bottom: 56px;
  }

  .principles {
    padding-bottom: 84px;
  }
}

/* Fix: title must fully fit on all screen sizes */
.hero-content {
  width: min(100%, 1040px);
  padding: 0 10px;
}

h1 {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Arial, sans-serif;
  font-size: clamp(38px, 8.2vw, 88px);
  line-height: 1.04;
  letter-spacing: -0.045em;
  font-weight: 750;
  white-space: nowrap;
}

@media (max-width: 520px) {
  .site-header {
    padding: 0 18px;
  }

  .nav {
    display: none;
  }

  h1 {
    font-size: clamp(34px, 11vw, 48px);
    letter-spacing: -0.04em;
  }

  .hero {
    padding-left: 16px;
    padding-right: 16px;
  }
}

.hero{align-items:start;padding-top:30px;}
.hero-content{padding-top:10px;}
.hero-preview{display:block;width:auto;max-width:420px;margin:38px auto 0;}
@media (max-width:700px){
.hero-preview{max-width:85vw;}
}


.download-section {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 22px 96px;
}

.download-card {
  background: #f5f5f7;
  border: 1px solid rgba(210, 210, 215, 0.65);
  border-radius: 34px;
  padding: 44px 30px;
  text-align: center;
  box-shadow: var(--shadow);
}

.download-card h2 {
  margin: 0;
  font-size: clamp(32px, 4.8vw, 58px);
  line-height: 1.05;
  letter-spacing: -0.055em;
}

.download-card p:not(.section-label) {
  margin: 18px auto 28px;
  max-width: 560px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.5;
}

.download-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 26px;
  border-radius: 999px;
  background: var(--blue);
  color: #fff;
  text-decoration: none;
  font-size: 16px;
  font-weight: 600;
  box-shadow: 0 12px 30px rgba(0, 113, 227, 0.24);
  transition: transform 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.download-button:hover {
  transform: translateY(-2px);
  background: var(--blue-hover);
  box-shadow: 0 16px 34px rgba(0, 113, 227, 0.30);
}

@media (max-width: 760px) {
  .download-section {
    padding: 0 18px 76px;
  }

  .download-card {
    padding: 36px 20px;
    border-radius: 28px;
  }
}