:root {
  color-scheme: light;
  --ink: #102a34;
  --muted: #58717a;
  --paper: #f7fbfb;
  --surface: #ffffff;
  --line: #cfe2e3;
  --brand: #008c92;
  --brand-strong: #006d75;
  --brand-deep: #053242;
  --sky: #dff8fa;
  --accent: #f4b740;
  --shadow: 0 22px 70px rgba(4, 43, 54, 0.18);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  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;
  text-decoration: none;
}

.site-header {
  min-height: 88svh;
  color: white;
  background:
    linear-gradient(90deg, rgba(5, 24, 35, 0.94), rgba(5, 48, 67, 0.78) 46%, rgba(5, 36, 54, 0.34)),
    url("/assets/hero-brand.png") center / cover;
}

.nav {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: clamp(18px, 3vw, 30px) 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand img {
  border-radius: 8px;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.22);
}

.brand strong,
.brand small {
  display: block;
}

.brand small {
  color: rgba(255, 255, 255, 0.72);
  margin-top: 2px;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.nav-links a {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 8px;
  color: rgba(255, 255, 255, 0.86);
  background: rgba(255, 255, 255, 0.08);
}

.hero {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: clamp(36px, 8vw, 86px) 0 clamp(52px, 7vw, 90px);
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(280px, 0.72fr);
  align-items: center;
  gap: clamp(28px, 6vw, 74px);
}

.hero-copy {
  max-width: 660px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: clamp(0.78rem, 0.72rem + 0.22vw, 0.94rem);
  font-weight: 800;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 20px;
  font-size: clamp(2.55rem, 1.92rem + 2.72vw, 5.15rem);
  line-height: 0.98;
  max-width: 780px;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(2rem, 1.64rem + 1.55vw, 3.45rem);
  line-height: 1.04;
}

h3 {
  margin-bottom: 10px;
  font-size: clamp(1.05rem, 1rem + 0.28vw, 1.26rem);
}

.lead {
  max-width: 610px;
  color: rgba(255, 255, 255, 0.82);
  font-size: clamp(1.05rem, 0.98rem + 0.32vw, 1.34rem);
}

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

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 18px;
  border-radius: 8px;
  font-weight: 800;
}

.button-primary {
  color: var(--brand-deep);
  background: var(--accent);
}

.button-secondary {
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.1);
}

.phone-preview {
  margin: 0;
  justify-self: center;
  width: min(100%, 360px);
  padding: 10px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.14);
  box-shadow: var(--shadow);
}

.phone-preview img {
  width: 100%;
  max-height: 620px;
  object-fit: cover;
  object-position: top;
  border-radius: 6px;
}

main {
  overflow: hidden;
}

section {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: clamp(62px, 9vw, 112px) 0;
}

.section-grid {
  display: grid;
  grid-template-columns: minmax(240px, 0.42fr) minmax(0, 1fr);
  gap: clamp(28px, 5vw, 58px);
}

.intro h2,
.steps h2,
.safety h2,
.download h2 {
  color: var(--brand-deep);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.feature,
.step-list article,
.store-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 14px 36px rgba(8, 60, 73, 0.08);
}

.feature {
  padding: clamp(18px, 2.5vw, 26px);
}

.feature p,
.step-list p,
.safety-list p,
.download p {
  color: var(--muted);
}

.feature-icon {
  width: 42px;
  height: 42px;
  margin-bottom: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  color: var(--brand-deep);
  background: var(--sky);
  font-weight: 900;
}

.brand-band {
  width: 100%;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 520px);
  align-items: stretch;
  background: var(--brand-deep);
  color: white;
}

.brand-band img {
  width: 100%;
  height: 100%;
  min-height: 420px;
  object-fit: cover;
}

.brand-band div {
  padding: clamp(34px, 6vw, 72px);
  align-self: center;
}

.brand-band h2 {
  color: white;
}

.brand-band p:not(.eyebrow) {
  color: rgba(255, 255, 255, 0.78);
  font-size: clamp(1rem, 0.95rem + 0.24vw, 1.18rem);
}

.steps {
  text-align: center;
}

.steps h2 {
  max-width: 820px;
  margin-left: auto;
  margin-right: auto;
}

.step-list {
  margin-top: 34px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  text-align: left;
}

.step-list article {
  padding: clamp(20px, 3vw, 30px);
}

.step-list span {
  width: 38px;
  height: 38px;
  margin-bottom: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  color: white;
  background: var(--brand);
  font-weight: 900;
}

.safety {
  display: grid;
  grid-template-columns: minmax(240px, 0.82fr) minmax(280px, 1fr);
  gap: clamp(28px, 6vw, 84px);
  align-items: start;
}

.safety-list {
  display: grid;
  gap: 14px;
}

.safety-list p {
  margin: 0;
  padding: 18px 18px 18px 22px;
  border-left: 4px solid var(--brand);
  border-radius: 8px;
  background: white;
  box-shadow: 0 14px 36px rgba(8, 60, 73, 0.07);
}

.download {
  margin-bottom: clamp(42px, 6vw, 74px);
  padding: clamp(28px, 5vw, 52px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(240px, 330px);
  gap: 28px;
  align-items: center;
  border-radius: 8px;
  color: white;
  background:
    linear-gradient(135deg, rgba(0, 109, 117, 0.95), rgba(5, 50, 66, 0.98)),
    url("/assets/hero-brand.png") center / cover;
}

.download h2 {
  color: white;
}

.download p {
  max-width: 680px;
  color: rgba(255, 255, 255, 0.78);
}

.store-card {
  padding: 18px;
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--ink);
}

.store-card img {
  border-radius: 8px;
}

.store-card strong,
.store-card span {
  display: block;
}

.store-card span {
  color: var(--muted);
  margin-top: 2px;
}

.footer {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 36px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.footer strong,
.footer span {
  display: block;
}

.footer strong {
  color: var(--ink);
}

.footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  justify-content: flex-end;
}

.footer a {
  text-decoration: underline;
  text-decoration-color: rgba(0, 140, 146, 0.35);
  text-underline-offset: 4px;
}

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

  .nav-links {
    justify-content: flex-start;
  }

  .hero,
  .section-grid,
  .brand-band,
  .safety,
  .download {
    grid-template-columns: 1fr;
  }

  .phone-preview {
    width: min(100%, 320px);
    justify-self: start;
  }

  .brand-band img {
    min-height: 280px;
  }

  .step-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .nav-links a {
    min-height: 38px;
    padding: 7px 10px;
  }

  .site-header {
    min-height: auto;
  }

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

  .footer nav {
    justify-content: flex-start;
  }
}