:root {
  --navy: #071b34;
  --navy-mid: #0d2a4d;
  --gold: #d4af37;
  --gold-light: #e6c76a;
  --text: #f5f7fa;
  --muted: rgba(245, 247, 250, 0.6);
  --border: rgba(255, 255, 255, 0.08);
  --max: 720px;
  /* Clearance for sticky nav when jumping to #features / #download */
  --scroll-offset: 6rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--scroll-offset);
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica,
    Arial, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--text);
  background: linear-gradient(180deg, var(--navy) 0%, var(--navy-mid) 100%);
  min-height: 100vh;
}

a {
  color: var(--gold-light);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--gold);
}

header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(12px);
  background: rgba(7, 27, 52, 0.92);
  border-bottom: 1px solid var(--border);
}

.nav {
  max-width: 960px;
  margin: 0 auto;
  padding: 0.875rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.nav-brand-logo {
  height: 36px;
  width: auto;
  display: block;
}

.nav-brand img {
  height: 36px;
  width: auto;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

/* Text links only — Get App uses .nav-cta (button style) below */
.nav-links a:not(.nav-cta) {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9375rem;
}

.nav-links a:not(.nav-cta):hover {
  color: var(--gold);
}

.nav-links a:not(.nav-cta)[aria-current='page'] {
  color: var(--gold-light);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-color: var(--gold);
  text-underline-offset: 4px;
}

.nav-links a:not(.nav-cta)[aria-current='page']:hover {
  color: var(--gold);
}

.nav-links a.nav-cta {
  display: inline-block;
  margin-left: 0.25rem;
  padding: 0.5rem 1.1rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  background: linear-gradient(180deg, var(--gold-light) 0%, var(--gold) 100%);
  color: #fff;
  font-weight: 600;
  font-size: 0.9375rem;
  line-height: 1.25;
  text-decoration: none;
  white-space: nowrap;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.28);
}

.nav-links a.nav-cta:hover {
  background: linear-gradient(180deg, #f0d878 0%, var(--gold-light) 100%);
  color: #fff;
  box-shadow: 0 3px 12px rgba(0, 0, 0, 0.32);
}

.nav-links a.nav-cta:focus-visible {
  outline: 2px solid var(--gold-light);
  outline-offset: 2px;
}

#features,
#download {
  scroll-margin-top: var(--scroll-offset);
}

main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}

.hero {
  text-align: center;
  padding: 2.5rem 0 3rem;
}

.hero img {
  width: min(280px, 80vw);
  height: auto;
  margin-bottom: 1.5rem;
}

.hero h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.75rem, 5vw, 2.25rem);
  font-weight: 700;
  line-height: 1.2;
}

.hero .tagline {
  margin: 0 auto 1.5rem;
  max-width: none;
  color: var(--muted);
  font-size: 1.125rem;
}

section {
  padding: 2.5rem 0;
  border-top: 1px solid var(--border);
}

main h1 {
  margin: 0 0 1rem;
  font-size: 1.75rem;
  color: var(--text);
}

section h2 {
  margin: 0 0 1rem;
  font-size: 1.5rem;
  color: var(--gold);
}

section h3 {
  margin: 1.5rem 0 0.5rem;
  font-size: 1.0625rem;
}

section p,
section li {
  color: var(--muted);
}

section ul {
  padding-left: 1.25rem;
}

section li {
  margin-bottom: 0.35rem;
}

.features {
  display: grid;
  gap: 1rem;
}

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

.card {
  padding: 1.25rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(13, 42, 77, 0.45);
}

.card strong {
  display: block;
  color: var(--text);
  margin-bottom: 0.35rem;
}

.contact-box {
  padding: 1.25rem 1.5rem;
  border-radius: 12px;
  border: 1px solid rgba(212, 175, 55, 0.35);
  background: rgba(212, 175, 55, 0.08);
}

.contact-box a {
  font-weight: 600;
}

footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.25rem 2.5rem;
  text-align: center;
  font-size: 0.875rem;
  color: var(--muted);
}

footer a {
  color: var(--muted);
}