:root {
  --navy: #0b1220;
  --navy-2: #131c2e;
  --blue: #2f7bff;
  --blue-600: #1f5fd6;
  --blue-100: #e8f0ff;
  --ink: #101828;
  --muted: #5b6478;
  --line: #e4e9f2;
  --bg: #ffffff;
  --bg-soft: #f6f9ff;
  --radius: 20px;
  --wrap: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 17px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Inter,
    Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--blue-600); }

h1, h2, h3 { line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 .5em; }
h1 { font-size: clamp(2rem, 4.6vw, 3.25rem); font-weight: 800; }
h2 { font-size: clamp(1.5rem, 2.8vw, 2.1rem); font-weight: 750; }
h3 { font-size: 1.15rem; font-weight: 700; }

/* header */
.site-header {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; max-width: var(--wrap); margin: 0 auto;
  padding: 1rem 1.25rem;
}
.brand {
  display: flex; align-items: center; gap: .6rem;
  font-weight: 800; font-size: 1.1rem; color: var(--ink); text-decoration: none;
}
.brand img { border-radius: 9px; }
.brand-name { display: flex; align-items: baseline; gap: 0; white-space: nowrap; }
.brand-sub { font-weight: 600; color: var(--muted); letter-spacing: -0.01em; }
@media (max-width: 720px) {
  .brand-sub { display: none; }
}
.site-header nav { display: flex; align-items: center; gap: 1.4rem; flex-wrap: wrap; }
.site-header nav a { color: var(--muted); text-decoration: none; font-size: .95rem; font-weight: 550; }
.site-header nav a:hover { color: var(--ink); }
.site-header .nav-cta {
  background: var(--blue); color: #fff; padding: .55rem 1rem;
  border-radius: 999px; font-weight: 650;
}

/* hero */
.hero {
  max-width: var(--wrap); margin: 0 auto; padding: 2rem 1.25rem 3rem;
  display: grid; grid-template-columns: 1.15fr .85fr; gap: 3rem; align-items: center;
}
.eyebrow {
  display: inline-block; margin: 0 0 1rem; padding: .3rem .8rem;
  background: var(--blue-100); color: var(--blue-600);
  border-radius: 999px; font-size: .85rem; font-weight: 650;
}
.lede { font-size: 1.15rem; color: var(--muted); max-width: 34em; }
.hero-cta { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; margin: 1.75rem 0; }
.hero-points { list-style: none; padding: 0; margin: 0; color: var(--muted); font-size: .98rem; }
.hero-points li { padding-left: 1.6rem; position: relative; margin-bottom: .35rem; }
.hero-points li::before {
  content: "✓"; position: absolute; left: 0; color: var(--blue); font-weight: 700;
}
.hero-shot .shot img { border-radius: 26px; box-shadow: 0 30px 70px -30px rgba(11,18,32,.5); }
.hero-shot figcaption { display: none; }

.store-badge {
  display: inline-flex; align-items: center; gap: .7rem;
  background: var(--navy); color: #fff; text-decoration: none;
  padding: .65rem 1.15rem; border-radius: 12px;
}
.store-badge span { display: flex; flex-direction: column; font-weight: 650; line-height: 1.2; }
.store-badge small { font-size: .68rem; font-weight: 450; opacity: .8; }
.ghost { font-weight: 650; text-decoration: none; border-bottom: 2px solid var(--blue-100); }
.btn {
  display: inline-block; background: var(--blue); color: #fff; text-decoration: none;
  padding: .7rem 1.3rem; border-radius: 999px; font-weight: 650; white-space: nowrap;
}

/* sections */
.section { max-width: var(--wrap); margin: 0 auto; padding: 3.5rem 1.25rem; border-top: 1px solid var(--line); }
.section-lede { color: var(--muted); max-width: 46em; margin-top: -.2em; }

.steps { list-style: none; padding: 0; margin: 2rem 0 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
.steps li { background: var(--bg-soft); border-radius: var(--radius); padding: 1.5rem; }
.step-n { display: block; color: var(--blue); font-weight: 800; font-size: .9rem; margin-bottom: .6rem; }
.steps p { color: var(--muted); font-size: .95rem; margin: 0; }

.shot-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; }
.shot { margin: 2rem 0; }
.shot img { border-radius: 18px; border: 1px solid var(--line); }
.shot figcaption { color: var(--muted); font-size: .88rem; margin-top: .6rem; }
.shot-row .shot { margin: 0; }

.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.75rem; margin-top: 2rem; }
.feature p { color: var(--muted); font-size: .96rem; margin: 0; }

.guide-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; margin: 2rem 0; }
.guide-card {
  display: block; text-decoration: none; color: inherit;
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  background: #fff; transition: box-shadow .18s ease, transform .18s ease;
}
.guide-card:hover { box-shadow: 0 18px 40px -24px rgba(11,18,32,.4); transform: translateY(-2px); }
.guide-card img { aspect-ratio: 3 / 2; object-fit: cover; width: 100%; }
.guide-card-body { padding: 1.1rem 1.2rem 1.4rem; }
.guide-card h3 { font-size: 1.05rem; margin-bottom: .4rem; }
.guide-card p { color: var(--muted); font-size: .92rem; margin: 0; }

/* faq */
.faq-list { border-top: 1px solid var(--line); margin-top: 2rem; }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item summary {
  cursor: pointer; padding: 1.1rem 0; font-weight: 650; font-size: 1.05rem;
  list-style: none; display: flex; justify-content: space-between; gap: 1rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; color: var(--blue); font-weight: 700; }
.faq-item[open] summary::after { content: "–"; }
.faq-item > div { padding-bottom: 1.2rem; }
.faq-item p { color: var(--muted); margin: 0 0 .5rem; }
.learn-more { font-weight: 600; text-decoration: none; font-size: .93rem; }

/* cta */
.cta-callout {
  background: var(--navy); color: #fff; border-radius: var(--radius);
  padding: 1.75rem; display: flex; align-items: center; justify-content: space-between;
  gap: 1.5rem; margin: 2rem 0; flex-wrap: wrap;
}
.cta-callout p { margin: 0; max-width: 46em; color: #dbe5f7; }
.article .cta-callout p { color: #dbe5f7; }

/* article */
.crumbs { max-width: 760px; margin: 0 auto; padding: 1rem 1.25rem 0; color: var(--muted); font-size: .9rem; }
.crumbs a { color: var(--muted); text-decoration: none; }
.crumbs span { margin: 0 .35rem; opacity: .5; }
.article { max-width: 760px; margin: 0 auto; padding: 1.5rem 1.25rem 2rem; }
.article h1 { margin-bottom: 1.25rem; }
.feature-image { border-radius: var(--radius); aspect-ratio: 3 / 2; object-fit: cover; width: 100%; }
.answer-first { font-size: 1.18rem; margin: 1.75rem 0; padding-left: 1.1rem; border-left: 4px solid var(--blue); }
.article h2 { margin-top: 2.5rem; }
.article p { color: #2c3444; }
.howto { background: var(--bg-soft); border-radius: var(--radius); padding: 1.5rem 1.75rem; margin: 2rem 0; }
.howto h2 { margin-top: 0; font-size: 1.25rem; }
.howto ol { padding-left: 1.2rem; margin: 0; list-style: decimal; }
.howto li { margin-bottom: .7rem; color: #2c3444; }
.article .shot img { max-width: 300px; margin: 0 auto; }
.article .cta-callout p { font-size: 1rem; }

/* footer */
.site-footer { background: var(--navy); color: #cbd5e6; margin-top: 4rem; padding: 3rem 1.25rem 2rem; }
.footer-cols {
  max-width: var(--wrap); margin: 0 auto; display: grid;
  grid-template-columns: 1.4fr 1fr 1fr; gap: 2.5rem;
}
.site-footer strong { color: #fff; display: block; margin-bottom: .8rem; }
.site-footer p { font-size: .93rem; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: .5rem; }
.site-footer a { color: #cbd5e6; text-decoration: none; font-size: .93rem; }
.site-footer a:hover { color: #fff; }
.site-footer .store-badge { background: #1e2a40; margin-top: 1rem; }
.copyright {
  max-width: var(--wrap); margin: 2.5rem auto 0; padding-top: 1.5rem;
  border-top: 1px solid #1e2a40; font-size: .85rem; opacity: .75;
}

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; gap: 2rem; }
  .hero-shot { max-width: 320px; }
  .steps, .feature-grid, .guide-grid, .shot-row { grid-template-columns: repeat(2, 1fr); }
  .footer-cols { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 620px) {
  body { font-size: 16px; }
  .steps, .feature-grid, .guide-grid { grid-template-columns: 1fr; }
  .shot-row { grid-template-columns: repeat(2, 1fr); }
  .site-header { flex-wrap: wrap; }
  .site-header nav { gap: 1rem; }
  .cta-callout { flex-direction: column; align-items: flex-start; }
  .footer-cols { grid-template-columns: 1fr; }
}