/* Radar Pulse sales site. Deep-blue brand, Inter, tasteful motion. Light theme. */
:root {
  --brand: #0B3B8C;
  --accent: #2F6BFF;
  --accent-ink: #fff;
  --bg: #ffffff;
  --bg-alt: #F3F6FC;
  --surface: #ffffff;
  --ink: #0B1220;
  --ink-2: #334155;
  --muted: #5B6679;
  --line: #E2E8F0;
  --line-2: #CBD5E1;
  --good: #047857;
  --warn: #C2410C;
  --radius: 20px;
  --radius-s: 12px;
  --shadow: 0 1px 2px rgba(11,18,32,.04), 0 12px 32px rgba(11,18,32,.07);
  --display: "Inter Tight", "Inter", system-ui, sans-serif;
  --body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: var(--body); color: var(--ink); background: var(--bg); line-height: 1.6; }
img { max-width: 100%; height: auto; }
a { color: var(--accent); }
.rps-wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
h1, h2, h3 { font-family: var(--display); letter-spacing: -.02em; line-height: 1.1; text-wrap: balance; }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border-radius: var(--radius-s); padding: 0 22px; min-height: 50px; font: 700 15px var(--body); text-decoration: none; border: 1.5px solid transparent; cursor: pointer; transition: transform .15s ease, box-shadow .15s ease; }
.btn.primary { background: var(--accent); color: var(--accent-ink); }
.btn.primary:hover { transform: translateY(-1px); box-shadow: 0 8px 22px rgba(47,107,255,.32); }
.btn.ghost { background: var(--surface); color: var(--ink); border-color: var(--line-2); }
.btn.small { min-height: 42px; padding: 0 16px; font-size: 14px; }
.btn.big { min-height: 56px; padding: 0 30px; font-size: 17px; }

/* header */
.rps-top { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.88); backdrop-filter: saturate(140%) blur(10px); border-bottom: 1px solid var(--line); }
.rps-top-inner { display: flex; align-items: center; gap: 20px; height: 68px; }
.rps-brand { display: inline-flex; align-items: center; gap: 10px; font-family: var(--display); font-weight: 800; font-size: 20px; color: var(--brand); text-decoration: none; }
.rps-mark { width: 20px; height: 20px; border-radius: 50%; background: var(--brand); position: relative; flex: none; }
.rps-mark::after { content: ""; position: absolute; inset: 5px; border-radius: 50%; background: #fff; }
.rps-nav { display: flex; gap: 6px; margin-inline-start: auto; flex-wrap: wrap; }
.rps-nav a, .rps-nav li { list-style: none; }
.rps-nav ul { display: flex; gap: 4px; margin: 0; padding: 0; list-style: none; }
.rps-nav a { color: var(--ink-2); text-decoration: none; font-weight: 600; font-size: 15px; padding: 8px 12px; border-radius: 9px; }
.rps-nav a:hover { background: var(--bg-alt); color: var(--ink); }
.rps-top-cta { flex: none; }
.rps-burger { display: none; flex-direction: column; gap: 4px; background: none; border: 0; cursor: pointer; padding: 10px; }
.rps-burger span { width: 22px; height: 2px; background: var(--ink); display: block; }

/* hero */
.rps-hero { padding: 72px 0 40px; background: radial-gradient(1200px 400px at 70% -10%, rgba(47,107,255,.10), transparent 60%); }
.rps-hero-fn { padding: 56px 0 24px; }
.rps-hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: center; }
.rps-eyebrow { font: 700 13px/1 var(--body); letter-spacing: .12em; text-transform: uppercase; color: var(--accent); margin: 0 0 14px; }
.rps-hero h1 { font-size: clamp(32px, 5vw, 52px); font-weight: 800; margin: 0 0 18px; }
.rps-lead { font-size: 18px; color: var(--ink-2); max-width: 54ch; margin: 0 0 24px; }
.rps-hero-cta { display: flex; gap: 12px; flex-wrap: wrap; }
.rps-note { color: var(--muted); font-size: 14px; margin: 14px 0 0; }

/* data-flow viz */
.rps-flow { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 18px; }
.rps-wire { stroke-dasharray: 6 8; animation: rps-dash 2.4s linear infinite; }
.rps-wire.out { stroke-dasharray: 5 7; animation-duration: 1.8s; }
@keyframes rps-dash { to { stroke-dashoffset: -56; } }
.rps-pulse { transform-origin: 210px 160px; animation: rps-ring 2.6s ease-out infinite; }
@keyframes rps-ring { 0% { opacity: .9; transform: scale(1); } 70% { opacity: 0; transform: scale(1.5); } 100% { opacity: 0; } }
.rps-src { opacity: 0; animation: rps-fadein .5s ease forwards; animation-delay: calc(var(--i) * .12s); }
.rps-out-card { opacity: 0; animation: rps-fadein .6s ease forwards; animation-delay: calc(1s + var(--i) * .25s); }
@keyframes rps-fadein { from { opacity: 0; transform: translateX(-6px); } to { opacity: 1; transform: none; } }

/* sections */
.rps-section { padding: 64px 0; }
.rps-section-alt { background: var(--bg-alt); }
.rps-h2 { font-size: clamp(26px, 3.4vw, 38px); font-weight: 800; margin: 0 0 32px; }
.rps-cards3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.rps-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow); }
.rps-card h3 { font-size: 20px; margin: 14px 0 8px; }
.rps-card p { margin: 0; color: var(--ink-2); }
.rps-split { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: center; }
.rps-ticks { list-style: none; padding: 0; margin: 0 0 24px; display: grid; gap: 10px; }
.rps-ticks li { padding-inline-start: 28px; position: relative; color: var(--ink-2); }
.rps-ticks li::before { content: "✓"; position: absolute; inset-inline-start: 0; color: var(--good); font-weight: 800; }

/* icons (brand squares) */
.rps-ico, .rps-mini-ico { width: 44px; height: 44px; border-radius: 12px; display: inline-block; flex: none; }
.rps-ico-money { background: #FFEDD5; } .rps-ico-cust { background: #EDE9FE; } .rps-ico-stock { background: #D1FAE5; }
.rps-ico-money::after, .rps-ico-cust::after, .rps-ico-stock::after { content: ""; }

/* mini cards mock */
.rps-cardmock { display: grid; gap: 12px; }
.rps-mini-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-s); padding: 14px 16px; display: flex; gap: 12px; align-items: flex-start; box-shadow: var(--shadow); }
.rps-mini-ico { width: 38px; height: 38px; border-radius: 10px; }
.rps-mini-card strong { display: block; font-size: 15px; }
.rps-mini-card span { font-size: 13px; color: var(--muted); }

/* cta band */
.rps-cta-band { background: var(--brand); color: #fff; padding: 64px 0; text-align: center; }
.rps-cta-band h2 { font-size: clamp(26px, 3.4vw, 36px); margin: 0 0 12px; color: #fff; }
.rps-cta-band p { color: rgba(255,255,255,.85); margin: 0 0 24px; }

/* function micro-animation */
.rps-fnanim { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); height: 260px; display: flex; align-items: center; justify-content: center; gap: 14px; }
.rps-fnanim span { width: 46px; background: var(--accent); border-radius: 8px; opacity: .85; animation: rps-bars 1.8s ease-in-out infinite; }
.rps-fnanim span:nth-child(1) { height: 60px; animation-delay: 0s; } .rps-fnanim span:nth-child(2) { height: 110px; animation-delay: .2s; background: var(--brand); } .rps-fnanim span:nth-child(3) { height: 80px; animation-delay: .4s; }
@keyframes rps-bars { 0%,100% { transform: scaleY(.8); } 50% { transform: scaleY(1.15); } }

/* prose */
.rps-prose { font-size: 17px; color: var(--ink-2); }
.rps-prose h2 { font-size: 26px; margin: 32px 0 12px; color: var(--ink); }
.rps-prose p { margin: 0 0 16px; }

/* blog */
.rps-posts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.rps-post-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); padding: 0 0 18px; }
.rps-post-card h2 { font-size: 19px; margin: 14px 18px 6px; } .rps-post-card h2 a { color: var(--ink); text-decoration: none; }
.rps-post-card p { margin: 6px 18px; color: var(--ink-2); font-size: 14px; }
.rps-post-thumb img { width: 100%; aspect-ratio: 16/9; object-fit: cover; display: block; }
.rps-more { margin: 0 18px; font-weight: 700; text-decoration: none; }

/* calculator */
.rps-calc { display: grid; grid-template-columns: 1.3fr .9fr; gap: 28px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 26px; }
.rps-calc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.rps-calc-grid label { display: grid; gap: 6px; font-size: 13px; font-weight: 600; color: var(--ink-2); }
.rps-calc-grid input { border: 1px solid var(--line-2); border-radius: 10px; padding: 10px 12px; font: 500 15px var(--body); }
.rps-calc-out { background: var(--bg-alt); border-radius: var(--radius-s); padding: 20px; align-self: start; }
.rps-calc-stat { display: flex; justify-content: space-between; align-items: baseline; padding: 8px 0; border-bottom: 1px solid var(--line); }
.rps-calc-stat span { color: var(--muted); font-size: 14px; }
.rps-calc-stat strong { font-family: var(--display); font-size: 20px; }
.rps-calc-stat.big strong { font-size: 26px; color: var(--brand); }
.rps-calc-stat.big { border-bottom: 0; }

/* footer */
.rps-foot { border-top: 1px solid var(--line); padding: 40px 0; background: var(--bg-alt); }
.rps-foot-top { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; align-items: center; }
.rps-foot ul { display: flex; gap: 16px; list-style: none; margin: 0; padding: 0; flex-wrap: wrap; }
.rps-foot a { color: var(--ink-2); text-decoration: none; }
.rps-foot-legal { color: var(--muted); font-size: 14px; margin: 18px 0 0; }

/* reveal on scroll - progressive enhancement: visible by default, hidden only when JS is on */
.rps-js .reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; transition-delay: var(--d, 0ms); }
.rps-js .reveal.in { opacity: 1; transform: none; }

/* responsive */
@media (max-width: 900px) {
  .rps-hero-grid, .rps-split, .rps-calc { grid-template-columns: 1fr; }
  .rps-cards3, .rps-posts { grid-template-columns: 1fr; }
  .rps-calc-grid { grid-template-columns: 1fr 1fr; }
  .rps-nav, .rps-top-cta { display: none; }
  .rps-nav.open { display: block; position: absolute; top: 68px; inset-inline: 0; background: #fff; border-bottom: 1px solid var(--line); padding: 12px 24px; }
  .rps-nav.open ul { flex-direction: column; }
  .rps-burger { display: flex; margin-inline-start: auto; }
}

@media (prefers-reduced-motion: reduce) {
  .rps-js .reveal { opacity: 1; transform: none; transition: none; }
  .rps-wire, .rps-pulse, .rps-src, .rps-out-card, .rps-fnanim span { animation: none !important; opacity: 1 !important; }
}