:root {
  --blue: #2563eb;
  --blue-dark: #1d4ed8;
  --blue-soft: #eff4ff;
  --ink: #0f172a;
  --muted: #475569;
  --line: #e2e8f0;
  --card: #f8fafc;
  --white: #ffffff;
  --radius: 22px;
  --max: 1120px;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
  -webkit-text-size-adjust: 100%;
}

* { box-sizing: border-box; }
body { margin: 0; }
img { max-width: 100%; display: block; }
a { color: var(--blue); }
a:hover { color: var(--blue-dark); }
h1, h2, h3 { line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 0.5em; }
h1 { font-size: clamp(2.4rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.9rem, 3.6vw, 2.7rem); }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1em; }

.wrap { width: min(var(--max), 100% - 2.5rem); margin-inline: auto; }

.skip-link { position: absolute; left: -999px; top: 0; background: var(--blue); color: #fff; padding: 0.6rem 1rem; z-index: 10; }
.skip-link:focus { left: 1rem; top: 1rem; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 5; background: rgba(255, 255, 255, 0.86); backdrop-filter: saturate(180%) blur(16px); -webkit-backdrop-filter: saturate(180%) blur(16px); border-bottom: 1px solid var(--line); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 64px; }
.brand { display: flex; align-items: center; gap: 0.6rem; font-weight: 700; font-size: 1.15rem; color: var(--ink); text-decoration: none; }
.brand img { width: 34px; height: 34px; border-radius: 9px; }
.site-nav { display: flex; gap: 1.4rem; flex-wrap: wrap; }
.site-nav a { color: var(--muted); text-decoration: none; font-weight: 500; font-size: 0.95rem; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--blue); }

/* Buttons */
.button { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.85rem 1.4rem; border-radius: 999px; font-weight: 600; text-decoration: none; background: var(--blue); color: #fff; border: 2px solid var(--blue); }
.button:hover { background: var(--blue-dark); border-color: var(--blue-dark); color: #fff; }
.button.secondary { background: transparent; color: var(--blue); }
.button.secondary:hover { background: var(--blue-soft); color: var(--blue-dark); }
.button-row { display: flex; flex-wrap: wrap; gap: 0.8rem; margin-top: 1.6rem; }

/* Hero */
.hero { background: radial-gradient(1200px 500px at 85% -10%, #dbe7ff 0%, transparent 60%), linear-gradient(180deg, #f5f8ff 0%, #ffffff 100%); padding: 4.5rem 0 3.5rem; overflow: hidden; }
.hero .wrap { display: grid; grid-template-columns: 1.1fr 0.9fr; align-items: center; gap: 3rem; }
.hero .eyebrow { display: inline-flex; align-items: center; gap: 0.5rem; font-weight: 600; color: var(--blue); background: var(--blue-soft); padding: 0.35rem 0.85rem; border-radius: 999px; font-size: 0.9rem; margin-bottom: 1.2rem; }
.hero .lead { font-size: 1.25rem; color: var(--muted); max-width: 36rem; }
.hero-shots { position: relative; display: flex; justify-content: center; }
.hero-shots .phone:nth-child(2) { position: absolute; width: 58%; right: -4%; bottom: -6%; transform: rotate(4deg); }
.hero-note { font-size: 0.9rem; color: var(--muted); margin-top: 1rem; }

/* Phone frame */
.phone { width: min(320px, 100%); border-radius: 44px; padding: 10px; background: #0b1220; box-shadow: 0 30px 60px -20px rgba(15, 23, 42, 0.35), 0 12px 24px -12px rgba(15, 23, 42, 0.25); }
.phone img { border-radius: 34px; width: 100%; height: auto; }
.phone.small { width: min(250px, 100%); }

/* Trust band */
.trust { border-block: 1px solid var(--line); background: var(--white); }
.trust ul { list-style: none; margin: 0; padding: 1.4rem 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; text-align: center; }
.trust li { font-weight: 600; color: var(--ink); }
.trust li span { display: block; font-weight: 400; color: var(--muted); font-size: 0.92rem; }

/* Steps */
.step { padding: 5.5rem 0; }
.step:nth-of-type(even) { background: var(--card); }
.step .wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.step.reverse .copy { order: 2; }
.step .shots { display: flex; justify-content: center; gap: 1.2rem; align-items: flex-start; }
.step .shots .phone:nth-child(2) { margin-top: 3rem; }
.step-number { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; border-radius: 50%; background: var(--blue); color: #fff; font-weight: 700; margin-bottom: 1rem; }
.step .kicker { text-transform: uppercase; letter-spacing: 0.08em; font-size: 0.8rem; font-weight: 700; color: var(--blue); margin-bottom: 0.4rem; }
.step .copy p { color: var(--muted); font-size: 1.08rem; }
.step .copy ul { padding-left: 1.2rem; color: var(--muted); }
.step .copy li { margin-bottom: 0.4rem; }
.quote { border-left: 4px solid var(--blue); padding: 0.4rem 0 0.4rem 1rem; color: var(--ink) !important; font-style: italic; }

/* Share band */
.share { padding: 5rem 0; background: linear-gradient(135deg, var(--blue) 0%, #1e40af 100%); color: #fff; }
.share .wrap { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 3rem; align-items: center; }
.share p { color: #dbe7ff; font-size: 1.08rem; }
.share a { color: #fff; }
.share .shots { display: flex; justify-content: center; }

/* Features */
.features { padding: 5.5rem 0; }
.features .intro { max-width: 46rem; color: var(--muted); font-size: 1.08rem; margin-bottom: 2.5rem; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; }
.feature-group { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.6rem 1.6rem 1rem; }
.feature-group h3 { color: var(--blue); }
.feature-group ul { margin: 0; padding-left: 1.15rem; color: var(--muted); }
.feature-group li { margin-bottom: 0.55rem; }
.feature-group li strong { color: var(--ink); }

/* Callout */
.callout { padding: 4rem 0; text-align: center; background: var(--blue-soft); }
.callout p { color: var(--muted); max-width: 40rem; margin-inline: auto; }
.callout .button-row { justify-content: center; }

/* Document pages */
.doc { padding: 3.5rem 0 4.5rem; }
.doc .wrap { max-width: 820px; }
.doc .meta { color: var(--muted); margin-bottom: 2rem; }
.doc h2 { font-size: 1.5rem; margin-top: 2.4rem; }
.doc h3 { margin-top: 1.6rem; }
.doc p, .doc li { color: #334155; }
.doc .summary { background: var(--blue-soft); border-radius: var(--radius); padding: 1.4rem 1.6rem; }
.doc .summary p:last-child { margin-bottom: 0; }
.contact-card { border: 1px solid var(--line); border-radius: var(--radius); padding: 1.6rem; background: var(--card); margin: 1.5rem 0; }
.contact-card .email { font-size: 1.3rem; font-weight: 700; }
details { border-bottom: 1px solid var(--line); padding: 1rem 0; }
details summary { font-weight: 600; cursor: pointer; }
details p, details ol, details ul { margin-top: 0.8rem; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding: 2.5rem 0; color: var(--muted); font-size: 0.92rem; }
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; }
.site-footer nav { display: flex; gap: 1.2rem; flex-wrap: wrap; }
.site-footer a { color: var(--muted); }

@media (max-width: 900px) {
  .hero .wrap, .step .wrap, .share .wrap { grid-template-columns: 1fr; gap: 2.5rem; }
  .step.reverse .copy { order: 0; }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .trust ul { grid-template-columns: 1fr 1fr; }
  .hero-shots .phone:nth-child(2) { right: 2%; }
}

@media (max-width: 600px) {
  .site-nav { gap: 0.9rem; }
  .site-nav .hide-small { display: none; }
  .feature-grid { grid-template-columns: 1fr; }
  .step { padding: 3.5rem 0; }
  .step .shots .phone.small:nth-child(2) { display: none; }
  .hero-shots .phone:nth-child(2) { display: none; }
}

@media (prefers-color-scheme: dark) {
  :root { --ink: #e2e8f0; --muted: #94a3b8; --line: #1e293b; --card: #0f172a; --white: #020617; --blue-soft: #0b1a3a; }
  .site-header { background: rgba(2, 6, 23, 0.82); }
  .hero { background: radial-gradient(1200px 500px at 85% -10%, #0b1a3a 0%, transparent 60%), linear-gradient(180deg, #050b1d 0%, #020617 100%); }
  .phone { background: #1e293b; }
  .doc p, .doc li { color: #cbd5e1; }
  a { color: #7aa2ff; }
  .button { color: #fff; }
  .button.secondary { color: #7aa2ff; border-color: #7aa2ff; }
}