:root{
  --bg:#0b2f9a; --ink:#ffffff; --muted:#d4e3ff; --card:rgba(5,18,66,.60); --line:rgba(255,255,255,.22);
  --brand:#a9d6ff; --accent:#ff8a65; --accent-ink:#14122a; --band:rgba(4,14,56,.38); --code:rgba(255,255,255,.14);
  --head:rgba(4,14,56,.78); --shadow:0 8px 28px rgba(0,10,50,.35);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);position:relative;
  font:17px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,Ubuntu,sans-serif}
body::before{content:"";position:fixed;inset:0;z-index:-1;
  background:linear-gradient(rgba(3,14,60,.42),rgba(3,14,60,.42)),url("../img/bg-blue.jpg") center/cover no-repeat,var(--bg)}
img{max-width:100%;height:auto}
a{color:var(--brand)}
a:focus-visible,summary:focus-visible,.btn:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:6px}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-999px;top:8px;background:var(--card);color:var(--ink);padding:8px 12px;border-radius:8px;z-index:10}
.skip:focus{left:8px}
h1{font-size:clamp(2rem,5vw,3.1rem);line-height:1.15;margin:.2em 0 .4em}
h2{font-size:clamp(1.5rem,3vw,2rem);line-height:1.25;margin:0 0 .6em}
h3{font-size:1.15rem;margin:1.2em 0 .4em}
p{margin:0 0 1em}
.lead{font-size:1.2rem;color:var(--muted)}
.narrow{max-width:720px}
.small{font-size:.9rem}
.muted{color:var(--muted)}
.center{text-align:center}
.center .narrow{margin-left:auto;margin-right:auto}
.eyebrow{color:var(--accent);font-weight:700;letter-spacing:.06em;text-transform:uppercase;font-size:.85rem;margin:0}
code{background:var(--code);padding:.1em .4em;border-radius:5px;font-size:.92em}
code.break{word-break:break-all}

.site-header{border-bottom:1px solid var(--line);background:var(--head);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);position:sticky;top:0;z-index:5}
.bar{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:10px;padding-bottom:10px}
.brand img{border-radius:9px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:800;font-size:1.25rem}
nav{display:flex;gap:4px;flex-wrap:wrap}
nav a{padding:8px 12px;border-radius:8px;text-decoration:none;color:var(--ink)}
nav a:hover{background:var(--band)}
nav a[aria-current=page]{background:var(--band);font-weight:700}

.hero{padding:56px 0 40px}
.hero-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:40px;align-items:center}
.hero-card{-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);background:var(--card);border:1px solid var(--line);border-radius:20px;padding:24px;text-align:center;box-shadow:var(--shadow)}
.hero-card p{margin:.6em 0 .2em;font-weight:700}
.hero-card ul{list-style:none;padding:0;margin:.4em 0 0;color:var(--muted)}
.qr{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;width:150px;margin:0 auto}
.qr span{aspect-ratio:1;background:var(--ink);border-radius:6px}
.qr span:nth-child(2),.qr span:nth-child(4),.qr span:nth-child(8){background:var(--brand)}
.qr span:nth-child(5){background:var(--accent)}
.card,.steps li,details,.post,table{-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
.cta{display:flex;gap:12px;flex-wrap:wrap;margin:1.2em 0 .8em}
.center .cta{justify-content:center}
.btn{display:inline-block;background:var(--accent);color:var(--accent-ink);padding:12px 22px;border-radius:12px;font-weight:700;text-decoration:none;border:2px solid var(--accent)}
.btn:hover{filter:brightness(1.08)}
.btn.ghost{background:transparent;color:#fff;border-color:#fff}

.block{padding-top:48px;padding-bottom:48px}
.band{background:var(--band)}
.page-head{padding-top:44px;padding-bottom:12px}
.steps{list-style:none;padding:0;margin:24px 0 0;display:grid;grid-template-columns:repeat(3,1fr);gap:20px;counter-reset:s}
.steps li{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:22px;counter-increment:s;box-shadow:var(--shadow)}
.steps li::before{content:counter(s);display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--accent);color:#1d1b2f;font-weight:800;margin-bottom:8px}
.steps h3{margin:.2em 0 .3em}
.cards{display:grid;gap:20px;margin-top:20px}
.cards.two{grid-template-columns:repeat(2,1fr)}
.cards.three{grid-template-columns:repeat(3,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:22px;box-shadow:var(--shadow)}
.card h3{margin-top:0}
.tag{display:inline-block;background:var(--band);color:var(--brand);border-radius:8px;padding:2px 8px;font-size:.8rem;font-weight:800;margin-right:6px;vertical-align:middle}
.flow{list-style:none;padding:0;margin:20px 0;display:flex;flex-wrap:wrap;gap:8px 4px;align-items:center}
.flow li{background:var(--card);border:1px solid var(--line);border-radius:999px;padding:6px 14px;font-weight:700;font-size:.9rem}
.flow li+li::before{content:"\2192";color:var(--accent);margin-right:10px;font-weight:800}
.ticks{list-style:none;padding:0;margin:0}
.ticks li{padding-left:28px;position:relative;margin:.5em 0}
.ticks li::before{content:"\2713";position:absolute;left:0;color:var(--accent);font-weight:800}
.plain{padding-left:1.3em}
.plain li{margin:.4em 0}
.table-wrap{overflow-x:auto;margin:20px 0}
table{border-collapse:collapse;width:100%;min-width:640px;background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden}
th,td{padding:10px 14px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
thead th{background:rgba(2,10,44,.55)}
tbody th{font-weight:600}
tr:last-child th,tr:last-child td{border-bottom:0}
.note{background:var(--band);padding:12px 16px;border-radius:10px}
.dl h2{font-size:1.4rem}

details{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:0 18px;margin:10px 0}
summary{cursor:pointer;font-weight:700;padding:14px 0}
details[open] summary{border-bottom:1px solid var(--line);margin-bottom:12px}
details p{margin-bottom:14px}

.post{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:22px;box-shadow:var(--shadow);margin-bottom:20px}
.post h2{margin-bottom:.2em}
.meta{color:var(--muted);font-size:.9rem}
.prose{max-width:760px}
.prose h2{margin-top:1.6em}
.draft-banner{margin:0;background:#fff3cd;color:#4a3b00;padding:10px 20px;text-align:center;border-bottom:1px solid #e0c36a}

.site-footer{border-top:1px solid var(--line);margin-top:24px;padding:28px 0;color:var(--muted);background:var(--head)}
.foot-tag{color:var(--ink);margin-bottom:.4em}
.foot-links a{margin-right:14px;color:var(--muted)}
.foot-small{font-size:.85rem;margin:.8em 0 0}


.qr-pair{display:flex;gap:14px;justify-content:center;align-items:flex-start}
.qr-pair figure{margin:0;flex:1;max-width:130px}
.qr-pair figcaption{font-size:.8rem;font-weight:700;margin-top:6px;line-height:1.25}
.qr-pair .qr{width:100%}
.pills{list-style:none;display:flex;flex-wrap:wrap;gap:8px;padding:0;margin:18px 0 0}
.pills li{background:var(--card);border:1px solid var(--line);border-radius:999px;padding:5px 14px;font-size:.92rem;font-weight:700}
.pills li::before{content:"\2713";color:var(--accent);margin-right:8px}
.compare{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:22px}
.compare .card.old{opacity:.88}
.compare h3{margin-top:0}
.compare .x li::before{content:"\2715";color:#ffb4a2}
.ladder{list-style:none;padding:0;margin:24px 0 0;display:grid;grid-template-columns:repeat(4,1fr);gap:16px;counter-reset:l}
.ladder li{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px;box-shadow:var(--shadow);position:relative}
.ladder li:nth-child(1){margin-top:48px}.ladder li:nth-child(2){margin-top:32px}.ladder li:nth-child(3){margin-top:16px}
.ladder .size{display:block;color:var(--accent);font-weight:800;font-size:.8rem;letter-spacing:.05em;text-transform:uppercase}
.ladder h3{margin:.2em 0 .3em}
.ladder p{margin:0;font-size:.95rem}
.badge{display:inline-block;background:var(--accent);color:var(--accent-ink);border-radius:8px;padding:1px 8px;font-size:.75rem;font-weight:800;margin-left:6px;vertical-align:middle}
.quote{border-left:4px solid var(--accent);padding:4px 0 4px 16px;font-size:1.1rem;color:var(--muted);margin:18px 0}

.diagram{margin:24px 0 8px}
.diagram-scroll{overflow-x:auto;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:12px;box-shadow:var(--shadow)}
.diagram svg{display:block;width:100%;min-width:720px;height:auto}
.diagram figcaption{margin-top:10px}
.dg-group{fill:rgba(255,255,255,.04);stroke:var(--line);stroke-dasharray:4 4}
.dg-box{fill:rgba(255,255,255,.10);stroke:var(--line);stroke-width:1.5}
.dg-box.hot{stroke:var(--brand)}
.dg-box.game{stroke:var(--accent);fill:rgba(255,138,101,.12)}
.dg-label{fill:var(--accent);font:700 13px system-ui,sans-serif;letter-spacing:.08em}
.dg-name{fill:var(--ink);font:800 15px system-ui,sans-serif}
.dg-sub{fill:var(--muted);font:13px system-ui,sans-serif}
.dg-line{fill:none;stroke:var(--brand);stroke-width:2}
.dg-line.thick{stroke:var(--accent);stroke-width:3}
.dg-line.dash{stroke-dasharray:5 4;stroke:var(--accent)}
.dg-arrow{fill:var(--brand)}
@media (max-width:820px){
  .compare,.ladder{grid-template-columns:1fr}
  .ladder li{margin-top:0!important}

  .hero-grid{grid-template-columns:1fr}
  .hero-card{max-width:320px}
  .steps,.cards.three,.cards.two{grid-template-columns:1fr}
  body{font-size:16.5px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

.free{margin:.6em 0 0;font-size:.95rem;color:var(--muted)}
.free .badge{margin:0 8px 0 0}
.shots{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px;margin:22px 0}
.shot{margin:0}
.shot img{display:block;width:100%;height:auto;border-radius:14px;border:1px solid var(--line);box-shadow:var(--shadow)}
.shot.phone img{max-width:260px;margin:0 auto}
.shot figcaption{margin-top:8px;font-size:.9rem;color:var(--muted)}
.shots{align-items:start}
.shots.two{grid-template-columns:repeat(2,minmax(0,1fr))}
@media (max-width:700px){.shots.two{grid-template-columns:1fr}}

/* Phones: keep the five nav links on one row under the logo. */
@media (max-width:640px){
nav{flex-wrap:nowrap;width:100%;justify-content:space-between;overflow-x:auto;scrollbar-width:none}
nav::-webkit-scrollbar{display:none}
nav a{padding:8px 6px;font-size:.92rem;white-space:nowrap}
}
@media (max-width:400px){nav a{padding:8px 4px;font-size:.86rem}}
@media (max-width:340px){nav a{padding:8px 3px;font-size:.8rem}}

.fb-form{max-width:640px}
.fb-form label{display:block;font-weight:700;margin:14px 0 6px}
.fb-form label:first-child{margin-top:0}
.fb-form input,.fb-form select,.fb-form textarea{width:100%;font:inherit;color:var(--ink);background:rgba(255,255,255,.10);border:1px solid var(--line);border-radius:10px;padding:10px 12px}
.fb-form select option{color:#14122a}
.fb-form textarea{resize:vertical;min-height:140px}
.fb-form input:focus-visible,.fb-form select:focus-visible,.fb-form textarea:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.fb-hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.fb-row{display:flex;align-items:center;gap:16px;margin:18px 0 10px;min-height:48px}
.fb-form .fb-row #fb-status{min-height:1.4em}
.fb-ok{color:#9be7b0}.fb-err{color:#ffb4a2}