:root {
    --navy: #0d0b33;
    --ink: #2a2d4a;
    --muted: #5d6280;
    --line: #e4e8f3;
    --bg: #ffffff;
    --bg-alt: #f4f8fe;
    --blue: #2db6fb;
    --indigo: #3f5fb5;
    --sky: #6ec0fb;
    --yellow: #fff208;
    --fb: #1877f2;
    --web: #7a5af8;
    --ussd: #f59e0b;
    --wa: #22c55e;
    --radius: 18px;
    --shadow: 0 10px 40px -12px rgba(13, 11, 51, .18);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: Inter, system-ui, -apple-system, "Segoe UI", sans-serif;
    color: var(--ink);
    background: var(--bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { font-family: Outfit, Inter, sans-serif; color: var(--navy); line-height: 1.15; margin: 0 0 .5em; }
h1 { font-size: clamp(2.3rem, 5.5vw, 4rem); font-weight: 800; letter-spacing: -.02em; }
h2 { font-size: clamp(1.8rem, 3.6vw, 2.6rem); font-weight: 700; letter-spacing: -.01em; }
h3 { font-size: 1.15rem; font-weight: 600; }
p { margin: 0 0 1em; }
a { color: inherit; }
code { font-family: ui-monospace, Consolas, monospace; font-size: .9em; background: rgba(45, 182, 251, .12); padding: .1em .35em; border-radius: 5px; }

.wrap { max-width: 1160px; margin: 0 auto; padding: 0 24px; }
.eyebrow { text-transform: uppercase; letter-spacing: .12em; font-size: .78rem; font-weight: 600; color: var(--indigo); margin-bottom: .8em; }
.hl { background: linear-gradient(90deg, var(--blue), var(--indigo)); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .4em; padding: .65em 1.2em; border-radius: 999px; font-weight: 600; text-decoration: none; font-size: .95rem; transition: transform .15s ease, box-shadow .15s ease, background .15s; white-space: nowrap; }
.btn:hover { transform: translateY(-1px); }
.btn-lg { padding: .9em 1.7em; font-size: 1.05rem; }
.btn-primary { background: linear-gradient(135deg, var(--blue), var(--indigo)); color: #fff; box-shadow: 0 8px 24px -8px rgba(63, 95, 181, .6); }
.btn-ghost { color: var(--navy); background: transparent; border: 1.5px solid var(--line); }
.btn-ghost:hover { border-color: var(--blue); }
.btn-yellow { background: var(--yellow); color: var(--navy); box-shadow: 0 8px 30px -8px rgba(255, 242, 8, .6); }

/* Nav */
.nav { position: sticky; top: 0; z-index: 50; background: rgba(255, 255, 255, .85); backdrop-filter: blur(12px); border-bottom: 1px solid transparent; transition: border-color .2s; }
.nav.scrolled { border-bottom-color: var(--line); }
.nav-inner { display: flex; align-items: center; gap: 24px; height: 68px; }
.brand img { height: 30px; display: block; }
.nav-links { display: flex; gap: 26px; margin-left: auto; }
.nav-links a { text-decoration: none; color: var(--muted); font-weight: 500; font-size: .95rem; }
.nav-links a:hover { color: var(--navy); }
.nav-cta { display: flex; gap: 10px; }

/* Hero */
.hero { padding: 72px 0 40px; background: radial-gradient(1200px 500px at 50% -10%, rgba(45, 182, 251, .18), transparent 70%); }
.hero-text { text-align: center; max-width: 860px; }
.hero .lead { font-size: 1.15rem; color: var(--muted); max-width: 680px; margin: 0 auto 1.6em; }
.hero-cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.fine { font-size: .85rem; color: var(--muted); margin-top: 1.2em; }

.flow-card { margin-top: 48px; background: #fff; border: 1px solid var(--line); border-radius: 26px; box-shadow: var(--shadow); padding: 20px; }
#flow { width: 100%; height: auto; display: block; }
.flow-card { position: relative; }
.ticker { position: absolute; top: 18px; left: 50%; transform: translateX(-50%); z-index: 2; display: inline-flex; align-items: center; gap: 10px; padding: 8px 18px 8px 14px; border-radius: 999px; background: var(--navy); color: #c9cde6; box-shadow: 0 10px 30px -10px rgba(13, 11, 51, .55); white-space: nowrap; }
.ticker[hidden] { display: none; }
.ticker-num { font-family: Outfit, sans-serif; font-weight: 800; font-size: 1.35rem; color: #fff; font-variant-numeric: tabular-nums; letter-spacing: .01em; }
.ticker-num.flash { animation: tickflash .9s ease; }
.ticker-label { font-size: .85rem; font-weight: 500; }
.live-dot { width: 9px; height: 9px; border-radius: 50%; background: #22c55e; position: relative; flex: none; }
.live-dot::after { content: ""; position: absolute; inset: -5px; border-radius: 50%; border: 2px solid #22c55e; animation: livepulse 1.8s ease-out infinite; }
@keyframes livepulse { from { transform: scale(.5); opacity: .9; } to { transform: scale(1.4); opacity: 0; } }
@keyframes tickflash { 30% { color: var(--yellow); } }
#flow .node rect { fill: #fff; stroke: var(--line); stroke-width: 1.5; }
#flow .node text { font-family: Outfit, sans-serif; font-weight: 600; font-size: 15px; fill: var(--navy); }
#flow .node .sub { font-family: Inter, sans-serif; font-weight: 400; font-size: 11.5px; fill: var(--muted); }
#flow .pipe { fill: none; stroke: #dfe6f5; stroke-width: 2; stroke-dasharray: 4 6; }
#flow .pipe.live { animation: dash 1.2s linear infinite; }
#flow .hub-ring { fill: none; stroke: var(--blue); stroke-width: 2; opacity: .35; transform-origin: center; transform-box: fill-box; animation: ring 2.4s ease-out infinite; }
#flow .hub-ring.r2 { animation-delay: 1.2s; }
#flow .hub-bg { fill: #fff; stroke: #cfe9fd; stroke-width: 2; }
#flow .hub-label { font-family: Outfit, sans-serif; font-weight: 700; font-size: 15px; fill: var(--navy); text-anchor: middle; }
#flow .out .count { font-family: Outfit, sans-serif; font-weight: 700; font-size: 13px; fill: var(--indigo); }
#flow .bump { animation: bump .45s ease; transform-origin: center; transform-box: fill-box; }
@keyframes dash { to { stroke-dashoffset: -20; } }
@keyframes ring { from { transform: scale(1); opacity: .5; } to { transform: scale(1.55); opacity: 0; } }
@keyframes bump { 50% { transform: scale(1.06); } }

/* Sections */
.section { padding: 96px 0; }
.section.alt { background: var(--bg-alt); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-head p:last-child { color: var(--muted); font-size: 1.08rem; }

/* Reveal on scroll */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }

/* Compare */
.compare { display: grid; grid-template-columns: 1fr 70px 1fr; align-items: stretch; gap: 0; }
.compare-col { border-radius: var(--radius); padding: 32px; }
.compare-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 16px; }
.compare-col li { display: flex; gap: 12px; align-items: flex-start; }
.before { background: #fff6f6; border: 1px solid #fde1e1; }
.before h3 { color: #b42318; }
.after { background: #f0fbff; border: 1px solid #c9ecfe; }
.x, .tick { flex: none; width: 24px; height: 24px; border-radius: 50%; display: grid; place-items: center; font-size: .75rem; font-weight: 700; margin-top: 1px; }
.x { background: #fde1e1; color: #b42318; }
.tick { background: var(--blue); color: #fff; }
.compare-arrow { display: grid; place-items: center; }
.compare-arrow span { width: 40px; height: 40px; border-radius: 50%; background: linear-gradient(135deg, var(--blue), var(--indigo)); position: relative; box-shadow: 0 6px 20px -6px rgba(63, 95, 181, .7); }
.compare-arrow span::after { content: "→"; color: #fff; position: absolute; inset: 0; display: grid; place-items: center; font-weight: 700; }
.compare.in .compare-arrow span { animation: nudge 1.6s ease-in-out infinite; }
.compare .after li { opacity: 0; transform: translateX(-10px); transition: opacity .5s ease, transform .5s ease; }
.compare.in .after li { opacity: 1; transform: none; }
.compare.in .after li:nth-child(2) { transition-delay: .15s; }
.compare.in .after li:nth-child(3) { transition-delay: .3s; }
.compare.in .after li:nth-child(4) { transition-delay: .45s; }
@keyframes nudge { 50% { transform: translateX(6px); } }

/* Steps */
.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 28px; position: relative; }
.step { display: grid; grid-template-columns: 56px 1fr 380px; gap: 28px; align-items: center; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 32px; box-shadow: 0 2px 0 rgba(13, 11, 51, .02); }
.step-num { width: 56px; height: 56px; border-radius: 16px; display: grid; place-items: center; font-family: Outfit, sans-serif; font-weight: 800; font-size: 1.5rem; color: #fff; background: linear-gradient(135deg, var(--blue), var(--indigo)); align-self: start; }
.step-body p { color: var(--muted); }
.step-body p:last-child { margin-bottom: 0; }
.step-body strong { color: var(--navy); }

.mock { background: var(--bg-alt); border: 1px solid var(--line); border-radius: 14px; padding: 18px; font-size: .85rem; min-height: 190px; }
.mock .field { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 8px 12px; margin-bottom: 10px; min-height: 37px; color: var(--navy); font-family: ui-monospace, Consolas, monospace; font-size: .8rem; }
.mock .typed::after { content: "|"; color: var(--blue); animation: blink 1s steps(1) infinite; margin-left: 1px; }
.mock .typed.done::after { content: ""; }
.mock .check, .mock .form-row { display: flex; align-items: center; gap: 8px; color: var(--muted); margin: 6px 0 12px; }
.mock .box { width: 16px; height: 16px; border-radius: 4px; border: 1.5px solid #c3cbe0; background: #fff; flex: none; position: relative; transition: background .2s, border-color .2s; }
.mock .box.on { background: var(--blue); border-color: var(--blue); }
.mock .box.on::after { content: "✓"; color: #fff; font-size: 11px; position: absolute; inset: 0; display: grid; place-items: center; }
.mock-btn { display: inline-block; background: linear-gradient(135deg, var(--blue), var(--indigo)); color: #fff; border-radius: 8px; padding: 7px 14px; font-weight: 600; transition: transform .15s; }
.mock-btn.small { font-size: .78rem; padding: 6px 12px; margin-bottom: 8px; }
.mock-btn.press { transform: scale(.94); }
.mock .found > * { opacity: 0; transform: translateY(6px); transition: opacity .35s, transform .35s; }
.mock .found > *.show { opacity: 1; transform: none; }
.mock .page { font-weight: 600; color: var(--navy); margin-top: 8px; }
.mock .form-row { margin: 4px 0 4px 14px; }
.mock-notify { position: relative; overflow: hidden; }
.toast { background: #fff; border: 1px solid var(--line); border-left: 4px solid var(--blue); border-radius: 10px; padding: 10px 14px; margin-bottom: 10px; box-shadow: 0 6px 18px -10px rgba(13, 11, 51, .3); opacity: 0; transform: translateX(30px); transition: opacity .4s, transform .4s; }
.toast.show { opacity: 1; transform: none; }
.toast b { color: var(--navy); }
.toast.t1 { border-left-color: var(--fb); }
.toast.t2 { border-left-color: var(--web); }
.toast.t3 { border-left-color: var(--ussd); }
@keyframes blink { 50% { opacity: 0; } }

/* Lifecycle */
.lifecycle { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; position: relative; margin-bottom: 48px; }
.lifecycle::before { content: ""; position: absolute; top: 34px; left: 12%; right: 12%; height: 3px; background: var(--line); border-radius: 3px; }
.lifecycle::after { content: ""; position: absolute; top: 34px; left: 12%; height: 3px; width: var(--progress, 0%); max-width: 76%; background: linear-gradient(90deg, var(--blue), var(--indigo)); border-radius: 3px; transition: width .8s ease; }
.lc-stage { text-align: center; position: relative; z-index: 1; padding: 0 6px; }
.lc-icon { width: 70px; height: 70px; margin: 0 auto 16px; border-radius: 50%; display: grid; place-items: center; font-size: 1.6rem; background: #fff; border: 2px solid var(--line); color: var(--muted); transition: all .4s ease; }
.lc-stage.active .lc-icon { border-color: var(--blue); color: #fff; background: linear-gradient(135deg, var(--blue), var(--indigo)); box-shadow: 0 8px 24px -8px rgba(45, 182, 251, .8); transform: scale(1.06); }
.lc-stage p { color: var(--muted); font-size: .93rem; }

/* Dedupe */
.dedupe { background: var(--bg-alt); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; margin-bottom: 48px; }
.dd-title { font-weight: 600; color: var(--navy); margin-bottom: 18px; text-align: center; }
.dd-stage { position: relative; height: 120px; max-width: 760px; margin: 0 auto; }
.dd-card { position: absolute; top: 18px; width: 260px; background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 12px 16px; display: grid; gap: 2px; box-shadow: 0 6px 20px -12px rgba(13, 11, 51, .35); transition: left 1s cubic-bezier(.6, 0, .3, 1), opacity .6s ease, transform .6s ease; }
.dd-card b { color: var(--navy); }
.dd-card small { color: var(--muted); }
.dd-card.a { left: 0; }
.dd-card.b { left: calc(100% - 260px); }
.dd-card.merged { left: calc(50% - 140px); width: 280px; opacity: 0; transform: scale(.9); border-color: var(--blue); box-shadow: 0 10px 30px -10px rgba(45, 182, 251, .7); }
.dedupe.go .dd-card.a, .dedupe.go .dd-card.b { left: calc(50% - 130px); opacity: 0; }
.dedupe.go .dd-card.merged { opacity: 1; transform: none; transition-delay: .8s; }
.src { font-size: .72rem; font-weight: 600; justify-self: start; padding: 2px 8px; border-radius: 999px; color: #fff; margin-bottom: 4px; }
.src.fb { background: var(--fb); }
.src.web { background: var(--web); }
.src.ok { background: var(--blue); }

/* Feature grid */
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature { border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; background: #fff; transition: border-color .2s, transform .2s; }
.feature:hover { border-color: var(--sky); transform: translateY(-3px); }
.feature p { color: var(--muted); margin: 0; font-size: .95rem; }

/* Case study */
.proof { background: linear-gradient(180deg, #fff, var(--bg-alt)); border-top: 1px solid var(--line); }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 40px; }
.stat { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; text-align: center; }
.stat-num { font-family: Outfit, sans-serif; font-weight: 800; font-size: 2.3rem; line-height: 1.1; color: var(--navy); font-variant-numeric: tabular-nums; min-height: 2.6rem; display: flex; align-items: center; justify-content: center; gap: 8px; flex-wrap: wrap; }
.stat-num [data-count], .stat-static { background: linear-gradient(90deg, var(--blue), var(--indigo)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat-from { font-size: 1.15rem; color: #b42318; text-decoration: line-through; text-decoration-thickness: 2px; opacity: .8; }
.stat-arrow { font-size: 1.2rem; color: var(--muted); }
.stat-to { font-size: 1.45rem; color: var(--indigo); }
.stat-label { color: var(--muted); font-size: .9rem; margin-top: 8px; }

.race { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; margin-bottom: 40px; display: grid; gap: 26px; }
.lane { border-radius: 14px; padding: 14px 16px 16px; }
.lane.paper { background: #fffafa; }
.lane.fast { background: #f5fbff; }
.lane-head { font-weight: 600; color: var(--navy); margin-bottom: 14px; display: flex; align-items: center; gap: 10px; }
.tag { white-space: nowrap; font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; padding: 3px 10px; border-radius: 999px; }
.tag.bad { background: #fde1e1; color: #b42318; }
.tag.good { background: #dff3ff; color: var(--indigo); }
.track { position: relative; display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; padding-top: 22px; }
.track::before { content: ""; position: absolute; top: 6px; left: 10%; right: 10%; height: 3px; border-radius: 3px; background: var(--line); }
.fast .track::before { background: linear-gradient(90deg, #cfe9fd, #c7d2f0); }
.stop { text-align: center; font-size: .88rem; font-weight: 600; color: var(--navy); background: var(--bg-alt); border: 1px solid var(--line); border-radius: 12px; padding: 10px 6px; position: relative; transition: border-color .3s, background .3s; }
.stop small { display: block; font-weight: 400; color: var(--muted); font-size: .76rem; }
.stop::before { content: ""; position: absolute; top: -21px; left: 50%; width: 11px; height: 11px; margin-left: -5.5px; border-radius: 50%; background: #fff; border: 2px solid #c3cbe0; }
.paper .stop.wait { background: #fff6f6; border-color: #fde1e1; }
.fast .stop.hub { background: linear-gradient(135deg, var(--blue), var(--indigo)); color: #fff; border-color: transparent; }
.fast .stop.hub small { color: #e3f4ff; }
.stop.lit { border-color: var(--blue); }
.paper .stop.lit { border-color: #f4a3a3; }
.runner { position: absolute; top: 0; left: 10%; width: 15px; height: 15px; border-radius: 50%; margin-left: -7.5px; background: var(--blue); box-shadow: 0 0 0 5px rgba(45, 182, 251, .2); }
.paper .runner { background: #e5484d; box-shadow: 0 0 0 5px rgba(229, 72, 77, .18); }

.story { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.story-col { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.story-col p { color: var(--muted); font-size: .95rem; }
.story-col p:last-child { margin-bottom: 0; }
.story-col strong { color: var(--navy); }
.result-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.result-list li { position: relative; padding-left: 30px; color: var(--ink); font-size: .95rem; }
.result-list li::before { content: "✓"; position: absolute; left: 0; top: 1px; width: 20px; height: 20px; border-radius: 50%; background: var(--blue); color: #fff; font-size: .7rem; font-weight: 700; display: grid; place-items: center; }
.proof-cta { margin-top: 32px; display: flex; align-items: center; justify-content: center; gap: 18px; flex-wrap: wrap; text-align: center; }
.proof-cta p { margin: 0; color: var(--navy); font-weight: 500; }

/* Sources */
.sources { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.source { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.source p { color: var(--muted); font-size: .93rem; margin: 0; }
.s-badge { width: 48px; height: 48px; border-radius: 14px; display: grid; place-items: center; color: #fff; font-weight: 800; font-family: Outfit, sans-serif; font-size: 1.2rem; margin-bottom: 16px; }
.s-badge.fb { background: var(--fb); }
.s-badge.web { background: var(--web); font-size: .95rem; }
.s-badge.ussd { background: var(--ussd); }
.s-badge.wa { background: var(--wa); }

/* Developers */
.section.dark { background: var(--navy); color: #c9cde6; }
.section.dark h2 { color: #fff; }
.section.dark .eyebrow { color: var(--yellow); }
.dev { display: grid; grid-template-columns: 1fr 1.25fr; gap: 48px; align-items: center; }
.dev-points { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.dev-points li::before { content: "→ "; color: var(--blue); font-weight: 700; }
.code { background: #070620; border: 1px solid #23224d; border-radius: 16px; overflow: hidden; min-width: 0; }
.code-bar { display: flex; gap: 6px; align-items: center; padding: 12px 16px; border-bottom: 1px solid #23224d; }
.code-bar span { width: 11px; height: 11px; border-radius: 50%; background: #2e2d5a; }
.code-bar em { margin-left: auto; font-style: normal; font-size: .78rem; color: #8b8fb3; }
.code pre { margin: 0; padding: 20px; overflow-x: auto; font-size: .82rem; line-height: 1.7; color: #e4e6f5; }
.code code { background: none; padding: 0; font-size: inherit; }
.c-str { color: var(--sky); }
.c-var { color: var(--yellow); }

/* CTA */
.cta { padding: 100px 0; background: linear-gradient(135deg, var(--blue), var(--indigo)); color: #eaf6ff; text-align: center; }
.cta h2 { color: #fff; }
.cta p { font-size: 1.1rem; margin-bottom: 1.6em; }
.cta-logo { width: 72px; margin-bottom: 18px; background: #fff; border-radius: 20px; padding: 10px; animation: float 4s ease-in-out infinite; }
@keyframes float { 50% { transform: translateY(-8px); } }

/* Footer */
.footer { padding: 32px 0; border-top: 1px solid var(--line); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.footer-logo { height: 26px; }
.footer nav { display: flex; gap: 22px; }
.footer a { color: var(--muted); text-decoration: none; font-size: .9rem; }

/* Responsive */
@media (max-width: 980px) {
    .step { grid-template-columns: 56px 1fr; }
    .step-visual { grid-column: 1 / -1; }
    .sources { grid-template-columns: repeat(2, 1fr); }
    .stats { grid-template-columns: repeat(2, 1fr); }
    .story { grid-template-columns: 1fr; }
    .grid { grid-template-columns: repeat(2, 1fr); }
    .dev { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
    .wrap { padding: 0 16px; }
    .nav-links { display: none; }
    .nav-cta { margin-left: auto; }
    .nav-cta .btn-ghost { display: none; }
    .brand img { height: 26px; }
    .hero { padding: 44px 0 24px; }
    .flow-card { padding: 10px; border-radius: 18px; margin-top: 32px; }
    .ticker { position: static; transform: none; display: flex; justify-content: center; flex-wrap: wrap; row-gap: 0; margin: 4px 0 12px; border-radius: 14px; padding: 10px 14px; }
    .ticker-num { font-size: 1.25rem; }
    .section { padding: 64px 0; }
    .section-head { margin-bottom: 36px; }
    .compare { grid-template-columns: 1fr; gap: 14px; }
    .compare-arrow span { transform: rotate(90deg); }
    .compare.in .compare-arrow span { animation: none; }
    .compare-col { padding: 22px; }
    .step { grid-template-columns: 1fr; padding: 22px; gap: 16px; }
    .step-num { width: 44px; height: 44px; font-size: 1.2rem; border-radius: 12px; }
    .lifecycle { grid-template-columns: 1fr 1fr; row-gap: 32px; }
    .lifecycle::before, .lifecycle::after { display: none; }
    .grid, .sources { grid-template-columns: 1fr; }
    .dedupe { padding: 20px 14px; }
    .dd-stage { height: 230px; }
    .dd-card, .dd-card.merged { width: auto; left: 0 !important; right: 0; }
    .dd-card.a { top: 0; }
    .dd-card.b { top: 84px; }
    .dd-card.merged { top: 140px; }
    .dedupe.go .dd-card.a, .dedupe.go .dd-card.b { top: 140px; }
    .dd-card { transition: top 1s cubic-bezier(.6, 0, .3, 1), opacity .6s ease, transform .6s ease; }
    .code pre { font-size: .74rem; padding: 16px; }
    .stats { gap: 12px; }
    .stat { padding: 18px 12px; }
    .stat-num { font-size: 1.8rem; }
    .race { padding: 18px 14px; }
    .track { grid-template-columns: 1fr; gap: 8px; padding: 0 0 0 26px; }
    .track::before { top: 8px; bottom: 8px; left: 7px; right: auto; width: 3px; height: auto; }
    .stop { text-align: left; padding: 8px 12px; }
    .stop::before { top: 50%; left: -24px; margin: -5.5px 0 0 0; }
    .runner { left: 1px; top: 0; margin-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
    .reveal { opacity: 1; transform: none; }
}

/* SEO / accessibility helpers */
.sr-only { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
figure.flow-card { margin-left: 0; margin-right: 0; margin-bottom: 0; }
.brand img, .footer-logo { width: auto; }
.cta-logo { height: auto; }
.h1-kicker { display: block; font-family: Inter, system-ui, sans-serif; font-size: .78rem; letter-spacing: .12em; margin-bottom: 1em; line-height: 1.4; }
/* Content stays visible without JavaScript (crawlers, no-JS); only animate when JS is running */
.no-js .reveal { opacity: 1; transform: none; }

/* FAQ */
.faq { max-width: 820px; margin: 0 auto; display: grid; gap: 12px; }
.faq details { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 0 22px; transition: border-color .2s; }
.faq details[open] { border-color: var(--sky); }
.faq summary { cursor: pointer; list-style: none; padding: 18px 28px 18px 0; position: relative; font-family: Outfit, sans-serif; font-weight: 600; font-size: 1.08rem; color: var(--navy); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 0; top: 50%; transform: translateY(-50%); font-size: 1.4rem; color: var(--blue); transition: transform .2s; }
.faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq details p { color: var(--muted); margin: 0 0 18px; }
.footer-note { width: 100%; color: var(--muted); font-size: .82rem; margin: 6px 0 0; }

/* ===================================================== Guide / landing pages */
.page-hero { padding: 48px 0 40px; background: radial-gradient(1000px 420px at 50% -20%, rgba(45, 182, 251, .16), transparent 70%); }
.page-hero .wrap { max-width: 1160px; }
.page-hero h1, .page-hero .lead, .page-hero .mini-flow { max-width: 860px; }
.page-hero h1 { font-size: clamp(2rem, 4.4vw, 3.1rem); }
.page-hero .lead { font-size: 1.12rem; color: var(--muted); max-width: 720px; }
.crumbs { font-size: .85rem; color: var(--muted); margin-bottom: 22px; display: flex; flex-wrap: wrap; gap: 6px; }
.crumbs a { color: var(--indigo); text-decoration: none; }
.crumbs a:hover { text-decoration: underline; }
.crumbs span[aria-hidden] { color: #b7bdd3; }
.meta-line { font-size: .85rem; color: var(--muted); margin-top: 14px; }

/* Mini flow strip: source -> LeadAdd -> destination, with moving dots (CSS only) */
.mini-flow { margin: 34px 0 6px; display: grid; grid-template-columns: 1fr 70px 1fr 70px 1fr; align-items: center; background: #fff; border: 1px solid var(--line); border-radius: 20px; padding: 22px; box-shadow: var(--shadow); }
.mf-node { text-align: center; font-family: Outfit, sans-serif; font-weight: 600; color: var(--navy); font-size: .98rem; }
.mf-node small { display: block; font-family: Inter, sans-serif; font-weight: 400; color: var(--muted); font-size: .78rem; }
.mf-icon { width: 52px; height: 52px; margin: 0 auto 8px; border-radius: 16px; display: grid; place-items: center; color: #fff; font-weight: 800; font-size: 1.2rem; }
.mf-node.hub .mf-icon { background: #fff; border: 2px solid #cfe9fd; animation: hubpulse 2.4s ease-in-out infinite; }
.mf-node.hub .mf-icon img { width: 30px; height: auto; }
.mf-pipe { position: relative; height: 3px; border-radius: 3px; background: repeating-linear-gradient(90deg, #dfe6f5 0 6px, transparent 6px 12px); overflow: visible; }
.mf-pipe i { position: absolute; top: -5px; left: 0; width: 13px; height: 13px; border-radius: 50%; background: var(--blue); border: 2.5px solid #fff; box-shadow: 0 2px 6px rgba(13, 11, 51, .25); animation: mfmove 1.8s cubic-bezier(.5, 0, .5, 1) infinite; }
.mf-pipe i:nth-child(2) { animation-delay: .6s; }
.mf-pipe i:nth-child(3) { animation-delay: 1.2s; }
.mf-pipe.in i { background: #1877f2; }
@keyframes mfmove { 0% { left: -6px; opacity: 0; } 15% { opacity: 1; } 85% { opacity: 1; } 100% { left: calc(100% - 7px); opacity: 0; } }
@keyframes hubpulse { 50% { box-shadow: 0 0 0 8px rgba(45, 182, 251, .14); } }

/* Article body */
.article { padding: 56px 0 80px; }
.article-grid { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: 56px; align-items: start; }
.prose { font-size: 1.05rem; color: var(--ink); min-width: 0; }
.prose h2 { font-size: clamp(1.5rem, 2.6vw, 1.9rem); margin: 1.8em 0 .55em; scroll-margin-top: 90px; }
.prose h2:first-child { margin-top: 0; }
.prose h3 { font-size: 1.2rem; margin: 1.5em 0 .4em; }
.prose p, .prose li { color: #3d4160; }
.prose ul, .prose ol { padding-left: 1.3em; margin: 0 0 1.2em; }
.prose li { margin-bottom: .45em; }
.prose a { color: var(--indigo); }
.prose strong { color: var(--navy); }
.prose table { width: 100%; border-collapse: collapse; margin: 0 0 1.4em; font-size: .95rem; display: block; overflow-x: auto; }
.prose th, .prose td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
.prose th { background: var(--bg-alt); color: var(--navy); font-family: Outfit, sans-serif; font-weight: 600; }
.prose pre { background: #070620; color: #e4e6f5; border-radius: 14px; padding: 18px; overflow-x: auto; font-size: .82rem; line-height: 1.65; margin: 0 0 1.4em; }
.prose pre code { background: none; padding: 0; font-size: inherit; color: inherit; }
.callout { border-radius: 14px; padding: 18px 20px; margin: 0 0 1.4em; background: #f0fbff; border: 1px solid #c9ecfe; }
.callout.warn { background: #fffaf0; border-color: #fde7c2; }
.callout p:last-child { margin-bottom: 0; }
.numbered { list-style: none; padding: 0 !important; counter-reset: n; display: grid; gap: 14px; }
.numbered > li { counter-increment: n; position: relative; padding: 18px 20px 18px 66px; background: #fff; border: 1px solid var(--line); border-radius: 14px; margin: 0 !important; }
.numbered > li::before { content: counter(n); position: absolute; left: 18px; top: 16px; width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; background: linear-gradient(135deg, var(--blue), var(--indigo)); color: #fff; font-family: Outfit, sans-serif; font-weight: 700; }
.numbered > li p:last-child { margin-bottom: 0; }

.aside { position: sticky; top: 90px; display: grid; gap: 18px; }
.toc, .aside-cta { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 20px; }
.toc h2 { font-size: .8rem; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); margin: 0 0 10px; font-family: Inter, sans-serif; }
.toc ol { margin: 0; padding-left: 1.1em; display: grid; gap: 7px; font-size: .92rem; }
.toc a { color: var(--ink); text-decoration: none; }
.toc a:hover { color: var(--indigo); }
.aside-cta { background: linear-gradient(135deg, var(--blue), var(--indigo)); border: 0; color: #eaf6ff; }
.aside-cta h2 { color: #fff; font-size: 1.15rem; margin: 0 0 6px; }
.aside-cta p { font-size: .9rem; margin-bottom: 14px; }
.aside-cta .btn { background: #fff; color: var(--navy); }

.related { padding: 72px 0; background: var(--bg-alt); }
.related h2 { text-align: center; margin-bottom: 30px; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card { display: block; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; text-decoration: none; transition: border-color .2s, transform .2s; }
.card:hover { border-color: var(--sky); transform: translateY(-3px); }
.card .kicker { font-size: .74rem; text-transform: uppercase; letter-spacing: .1em; color: var(--indigo); font-weight: 600; }
.card h3 { margin: 8px 0 6px; }
.card p { color: var(--muted); font-size: .93rem; margin: 0; }
.card .more { display: inline-block; margin-top: 12px; color: var(--indigo); font-weight: 600; font-size: .9rem; }
.guides-grid { grid-template-columns: repeat(2, 1fr); }

.footer-inner { align-items: flex-start; }
.footer-cols { display: flex; gap: 48px; flex-wrap: wrap; }
.footer-cols h2 { font-size: .78rem; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); margin: 0 0 10px; font-family: Inter, sans-serif; }
.footer-cols ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 7px; }

@media (max-width: 980px) {
    .article-grid { grid-template-columns: 1fr; }
    .aside { position: static; }
    .cards { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px) {
    .page-hero { padding: 28px 0 28px; }
    .mini-flow { grid-template-columns: 1fr; gap: 0; padding: 18px; }
    .mf-pipe { height: 34px; width: 3px; margin: 6px auto; background: repeating-linear-gradient(180deg, #dfe6f5 0 6px, transparent 6px 12px); }
    .mf-pipe i { left: -5px; top: 0; animation-name: mfmovev; }
    .article { padding: 36px 0 56px; }
    .cards, .guides-grid { grid-template-columns: 1fr; }
    .numbered > li { padding: 16px 16px 16px 58px; }
    .numbered > li::before { left: 14px; }
    .footer-cols { gap: 28px; }
}
@keyframes mfmovev { 0% { top: -6px; opacity: 0; } 15% { opacity: 1; } 85% { opacity: 1; } 100% { top: calc(100% - 7px); opacity: 0; } }
a.sr-only:focus { position: fixed !important; left: 12px; top: 12px; width: auto; height: auto; clip: auto; margin: 0; padding: 10px 16px; z-index: 100; background: var(--navy); color: #fff; border-radius: 10px; text-decoration: none; }
.numbered > li, .article-grid > * { min-width: 0; }
.prose p code, .prose li code, .prose td code { overflow-wrap: anywhere; }
.numbered > li > h3:first-child { margin-top: 5px; }
section[id], h2[id], main[id] { scroll-margin-top: 72px; }