/* ============================================================
   Avatar Coding — landing page
   Visual language referenced from crossdb.nale.co:
   dark navy canvas, gradient wordmark, hub-and-spoke diagram.
   ============================================================ */

:root{
  --bg:#080b14;
  --bg-2:#0b0f1a;
  --panel:#111726;
  --panel-2:#0e1422;
  --line:#1d2537;
  --line-hi:#2b3752;
  --ink:#e8edf7;
  --ink-dim:#94a2bd;
  --ink-faint:#61708d;
  --blue:#6ea8ff;
  --violet:#a78bfa;
  --pink:#f0a6d0;
  --green:#4ade80;
  --amber:#fbbf24;
  --red:#f87171;
  /* light chrome — same tokens as the portal page, so header and footer
     read as one family across the site */
  --l-ink:#18181b;--l-ink-2:#3f3f46;--l-mut:#71717a;--l-mut-2:#a1a1aa;
  --l-line:#e4e4e7;--l-line-2:#f4f4f5;--l-bg:#ffffff;
  --brand:#2563eb;--brand-hi:#3b82f6;--brand-tint:#eff6ff;
  --navh:72px;
  --mono:ui-monospace,'SF Mono','JetBrains Mono',Menlo,Consolas,monospace;
  --sans:'Sora','Noto Sans JP',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --maxw:1180px;
  --radius:16px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:var(--navh)}
body{
  background:var(--bg);color:var(--ink);font-family:var(--sans);
  font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased;/* `clip`, not `hidden`: overflow-x:hidden turns body into a scroll
     container and breaks the sticky header */
  overflow-x:clip;
}
/* ambient glows, same mood as the reference page */
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(900px 520px at 78% -10%,rgba(110,168,255,.13),transparent 62%),
    radial-gradient(760px 620px at 4% 12%,rgba(167,139,250,.10),transparent 60%),
    radial-gradient(700px 500px at 50% 108%,rgba(240,166,208,.07),transparent 60%);
}
:lang(ja) body,html[lang="ja"] body{font-family:'Noto Sans JP','Sora',system-ui,sans-serif}

.wrap{position:relative;z-index:1;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.grad{
  background:linear-gradient(100deg,var(--blue),var(--violet) 52%,var(--pink));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.c-blue{color:var(--blue)}.c-violet{color:var(--violet)}.c-pink{color:var(--pink)}
.c-green{color:var(--green)}.c-amber{color:var(--amber)}.c-red{color:var(--red)}
.c-dim{color:var(--ink-faint)}
.center{margin-left:auto;margin-right:auto;text-align:center}

/* ------------------------------- NAV ------------------------------- */
/* white sticky bar, matching the portal page at avatar.nal.vn */
.nav{
  position:sticky;top:0;z-index:50;
  background:var(--l-bg);            /* opaque: the dark hero scrolls underneath */
  border-bottom:1px solid var(--l-line);
  transition:box-shadow .2s ease;
}
.nav.scrolled{box-shadow:0 2px 16px rgba(15,23,42,.10)}
.nav-inner{
  max-width:var(--maxw);margin:0 auto;padding:0 24px;height:var(--navh);
  display:flex;align-items:center;gap:26px;
}
.nal-logo{height:34px;width:auto;display:block}
.brand{display:flex;align-items:center;gap:14px;text-decoration:none;color:var(--l-ink);flex-shrink:0}
.nav-sep{width:1px;height:26px;background:var(--l-line)}
.brand-name{font-weight:800;letter-spacing:-.02em;font-size:17px;white-space:nowrap;color:var(--l-ink)}
.brand-thin{font-weight:400;color:var(--l-mut)}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:12px}
.nav-links a{
  color:var(--l-ink-2);text-decoration:none;font-size:14px;font-weight:600;
  padding:6px 0;border-bottom:2px solid transparent;transition:color .15s,border-color .15s;
}
.nav-links a:hover{color:var(--brand);border-bottom-color:var(--brand)}
.nav-right{display:flex;align-items:center;gap:12px;margin-left:auto;flex-shrink:0}
.nav-cta-m{display:none}
.burger{display:none;flex-direction:column;gap:4px;border:0;background:none;cursor:pointer;padding:6px}
.burger span{display:block;width:20px;height:2px;background:var(--l-ink);border-radius:2px}

.lang-switch{display:flex;border:1px solid var(--l-line);border-radius:8px;overflow:hidden}
.lang-switch button{
  background:transparent;border:0;color:var(--l-mut);cursor:pointer;
  font-family:var(--mono);font-size:12px;font-weight:700;padding:7px 10px;
  transition:background .15s,color .15s;
}
.lang-switch button:hover{color:var(--l-ink)}
.lang-switch button.on{background:var(--brand-tint);color:var(--brand)}
.nav-cta{
  background:var(--brand);color:#fff;text-decoration:none;font-weight:700;font-size:13.5px;
  padding:9px 18px;border-radius:8px;white-space:nowrap;transition:background .15s,transform .15s;
}
.nav-cta:hover{background:#1d4ed8;transform:translateY(-1px)}
.nav a:focus-visible,.lang-switch button:focus-visible{outline:3px solid var(--brand-hi);outline-offset:3px}

/* ------------------------------ BUTTONS ---------------------------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:11px;text-decoration:none;cursor:pointer;
  font-weight:700;font-size:15px;border:1px solid transparent;white-space:nowrap;
  transition:transform .16s ease,box-shadow .16s ease,border-color .16s,color .16s;
}
.btn-sm{padding:8px 16px;font-size:13.5px;border-radius:9px}
.btn-primary{
  color:#07101f;background:linear-gradient(120deg,var(--blue),var(--violet));
  box-shadow:0 8px 30px rgba(110,168,255,.26);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 40px rgba(110,168,255,.4)}
.btn-ghost{color:var(--ink);border-color:var(--line-hi);background:rgba(17,23,38,.6)}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue)}
.btn:focus-visible{outline:3px solid var(--amber);outline-offset:3px}

/* ------------------------------- HERO ------------------------------ */
.hero{padding:86px 0 64px;border-bottom:1px solid var(--line)}
/* 左にコピー、右に紹介動画。ターミナルは下段で全幅のままにする */
.hero-inner{
  display:grid;grid-template-columns:1.02fr .98fr;
  column-gap:clamp(28px,3.6vw,52px);align-items:center;
}
.hero-copy{min-width:0;display:flex;flex-direction:column;align-items:flex-start}
.hero-term{grid-column:1 / -1}
.kicker{
  display:inline-flex;align-items:center;gap:10px;font-family:var(--mono);
  font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--blue);
  border:1px solid var(--line);border-radius:100px;padding:7px 15px;margin-bottom:26px;
}
.pulse{width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 10px var(--green);animation:blink 1.6s steps(2) infinite}
@keyframes blink{50%{opacity:.25}}
/* 2カラムではコピー幅が半分になるため、見出しの上限を下げて折り返しを防ぐ */
.hero-title{font-size:clamp(40px,4.6vw,66px);font-weight:800;letter-spacing:-.035em;line-height:1.04}
.hero-sub{font-size:clamp(18px,1.9vw,24px);font-weight:600;margin-top:16px;max-width:24ch;line-height:1.35}
.hero-lede{font-size:clamp(15px,1.9vw,17px);color:var(--ink-dim);max-width:56ch;margin-top:18px;font-weight:400}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}

/* ---- 紹介動画 ---- */
.hero-video{
  position:relative;min-width:0;border-radius:14px;overflow:hidden;
  border:1px solid var(--line);background:#060910;
  box-shadow:0 24px 60px rgba(0,0,0,.5);
}
.hero-video video{display:block;width:100%;aspect-ratio:16/9;object-fit:cover;background:#060910}
/* 自動再生は muted 必須のため、音声はこのボタンで有効化する */
.unmute{
  position:absolute;left:14px;bottom:52px;z-index:2;
  display:inline-flex;align-items:center;gap:7px;cursor:pointer;
  padding:8px 14px;border-radius:100px;
  font:600 13px/1 var(--sans);color:var(--ink);
  background:rgba(6,9,16,.82);border:1px solid var(--line-hi);
  backdrop-filter:blur(6px);transition:.18s ease;
}
.unmute:hover{border-color:var(--blue);color:var(--blue)}
.unmute[hidden]{display:none}

.hero-term{width:100%;margin-top:44px}
.term,.hero-term{
  background:#060910;border:1px solid var(--line);border-radius:14px;overflow:hidden;
  box-shadow:0 24px 60px rgba(0,0,0,.5);
}
.term{margin-top:24px}
.term-bar{display:flex;align-items:center;gap:8px;padding:11px 15px;background:#0b1120;border-bottom:1px solid var(--line)}
.term-bar .dot{width:10px;height:10px;border-radius:50%}
.dot.r{background:#ff5f56}.dot.y{background:#ffbd2e}.dot.g{background:#27c93f}
.term-title{font-family:var(--mono);font-size:12px;color:var(--ink-faint);margin-left:8px}
.term-body{
  padding:18px 20px;font-family:var(--mono);font-size:13px;line-height:1.9;
  color:var(--ink);overflow-x:auto;white-space:pre-wrap;min-height:60px;
}
.term-body .ok{color:var(--green);font-weight:700}
.term-body .arrow{color:var(--blue)}
.cursor{display:inline-block;width:8px;height:15px;background:var(--blue);vertical-align:-2px;margin-left:3px;animation:blink 1s steps(2) infinite}

/* ----------------------------- SECTIONS ---------------------------- */
.section{padding:82px 0;border-bottom:1px solid var(--line);position:relative}
.shead{display:flex;align-items:baseline;gap:15px;flex-wrap:wrap}
/* long headings wrap inside themselves instead of pushing the number onto
   its own line — keeps section numbering aligned across languages */
.shead h2{flex:1 1 320px}
.sno{
  font-family:var(--mono);font-size:12px;font-weight:800;color:#07101f;
  background:linear-gradient(120deg,var(--blue),var(--violet));
  padding:5px 11px;border-radius:7px;flex-shrink:0;
}
h2{font-size:clamp(27px,4.6vw,46px);font-weight:800;letter-spacing:-.025em;line-height:1.14;text-wrap:balance}
h3{font-size:19px;font-weight:700;letter-spacing:-.01em}
.lead{font-size:clamp(15px,1.9vw,18px);color:var(--ink-dim);max-width:74ch;margin-top:15px}

/* ---------------------------- DIAGRAM ------------------------------ */
.diagram{
  position:relative;margin-top:38px;
  /* wide gutters + roomy node spacing so the generated wires stay readable */
  display:grid;grid-template-columns:.94fr 1.3fr .94fr;gap:clamp(34px,5.4vw,76px);align-items:center;
}
.wires{position:absolute;inset:0;width:100%;height:100%;z-index:0;pointer-events:none}
.col{position:relative;z-index:1;display:flex;flex-direction:column;gap:17px}
.col-label{
  font-family:var(--mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--ink-faint);margin-bottom:2px;
}
.node{
  display:flex;align-items:center;gap:10px;padding:10px 12px;
  background:linear-gradient(180deg,var(--panel),var(--panel-2));
  border:1px solid var(--line);border-radius:12px;
  transition:border-color .18s,transform .18s;
}
.node:hover{border-color:var(--line-hi);transform:translateX(2px)}
.col-right .node:hover{transform:translateX(-2px)}
.node .ico{
  width:28px;height:28px;flex-shrink:0;border-radius:8px;display:grid;place-items:center;
  background:rgba(110,168,255,.1);border:1px solid var(--line);font-size:14px;
}
.node b{display:block;font-size:13.5px;font-weight:700}
.node small{display:block;font-size:11.5px;color:var(--ink-faint);line-height:1.4}

.hub{
  border-radius:20px;padding:26px 22px;text-align:center;
  background:linear-gradient(165deg,rgba(110,168,255,.11),rgba(167,139,250,.07) 55%,rgba(240,166,208,.05));
  border:1px solid rgba(110,168,255,.3);
  box-shadow:0 0 70px rgba(110,168,255,.14),inset 0 0 60px rgba(110,168,255,.04);
}
.hub-title{font-size:clamp(24px,3.4vw,34px);font-weight:800;letter-spacing:-.03em}
.hub-sub{font-size:13.5px;color:var(--ink-dim);margin-top:6px}
.hub-cli{font-family:var(--mono);font-size:12px;color:var(--ink-faint);margin-top:10px}
.hub-cli code{background:rgba(255,255,255,.05);padding:2px 7px;border-radius:5px;color:var(--blue)}
.pills{display:flex;flex-wrap:wrap;gap:7px;justify-content:center;margin-top:18px}
.pill{
  font-size:12px;font-weight:500;padding:6px 12px;border-radius:100px;
  background:rgba(8,12,22,.75);border:1px solid var(--line-hi);color:var(--ink);white-space:nowrap;
}

/* the fan overlay reaches from the hub's bottom border down to the outcome
   cards, so it is taller than .fan itself — JS sets top/height */
.fan{position:relative;height:100px;margin-top:8px}
.fan svg{position:absolute;left:0;width:100%;display:block;overflow:visible;pointer-events:none;z-index:0}
/* sits on top of the centre fan wire — the solid pad keeps the label legible */
.out-label{
  position:relative;z-index:1;width:fit-content;margin:0 auto 44px;
  background:var(--bg);padding:3px 14px;border-radius:7px;
  text-align:center;font-family:var(--mono);font-size:11.5px;letter-spacing:.24em;
  text-transform:uppercase;color:var(--blue);
}
.out-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.out-card{
  background:linear-gradient(180deg,var(--panel),var(--panel-2));
  border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;text-align:center;
  transition:border-color .18s,transform .18s;
}
.out-card:hover{border-color:var(--line-hi);transform:translateY(-3px)}
.out-ico{font-size:26px;margin-bottom:12px}
.out-card p{font-size:13.5px;color:var(--ink-dim);margin-top:9px}
.tags{display:flex;flex-wrap:wrap;gap:6px;justify-content:center;margin-top:15px}
.tags span{
  font-size:11.5px;padding:4px 10px;border-radius:100px;
  background:rgba(8,12,22,.7);border:1px solid var(--line);color:var(--ink-dim);
}

/* ------------------------ PROBLEM → ANSWER -------------------------- */
.probs-title{margin-top:52px;margin-bottom:20px;font-size:clamp(19px,2.4vw,24px)}
.probs{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;align-items:stretch}
.prob-card{
  display:flex;flex-direction:column;padding:26px 24px;border-radius:var(--radius);
  background:linear-gradient(180deg,var(--panel),var(--panel-2));
  border:1px solid var(--line);transition:border-color .18s,transform .18s;
}
.prob-card:hover{border-color:var(--line-hi);transform:translateY(-3px)}
.prob-tag{
  display:flex;align-items:center;gap:9px;margin-bottom:11px;
  font-family:var(--mono);font-size:11.5px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--ink-faint);
}
.prob-no{font-weight:800;color:var(--red);opacity:.85}
.prob-card h4{font-size:16.5px;font-weight:700;line-height:1.4}
.prob-card p{font-size:14px;color:var(--ink-dim);margin-top:10px}
/* the answer block is pinned to the bottom so the three cards align */
.prob-ans{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  font-size:13.5px;color:var(--ink-dim);
}
.prob-ans b{color:var(--green);font-weight:700}
.prob-chips{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px}
.prob-chips a{
  font-size:11.5px;padding:4px 10px;border-radius:100px;text-decoration:none;
  background:rgba(8,12,22,.7);border:1px solid var(--line);color:var(--blue);
  transition:border-color .18s,color .18s;
}
.prob-chips a:hover{border-color:var(--blue);color:var(--ink)}

/* ---------------------------- PILLARS ------------------------------ */
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:34px}
.pcard{
  position:relative;padding:26px 24px;border-radius:var(--radius);
  background:linear-gradient(180deg,var(--panel),var(--panel-2));
  border:1px solid var(--line);transition:border-color .18s,transform .18s,box-shadow .18s;
}
.pcard:hover{border-color:rgba(110,168,255,.42);transform:translateY(-3px);box-shadow:0 16px 44px rgba(110,168,255,.1)}
.pidx{
  font-family:var(--mono);font-size:13px;font-weight:800;color:var(--blue);
  opacity:.75;margin-bottom:9px;letter-spacing:.1em;
}
.pcard p{font-size:14px;color:var(--ink-dim);margin-top:9px}
.pout{
  font-size:12.5px;color:var(--green);margin-top:14px;padding-top:13px;
  border-top:1px solid var(--line);
}

/* ---------------------------- NUMBERS ------------------------------ */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:34px}
.stat{
  text-align:center;padding:30px 16px;border-radius:var(--radius);
  border:1px solid var(--line);background:linear-gradient(180deg,var(--panel),transparent);
}
.stat .n{
  font-family:var(--mono);font-size:clamp(34px,5.2vw,54px);font-weight:800;
  line-height:1;font-variant-numeric:tabular-nums;
}
.stat .l{font-size:13.5px;color:var(--ink-dim);margin-top:12px}

/* ---------------------------- IMPACT ------------------------------- */
.ba{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:34px}
.ba-col{padding:28px 26px;border-radius:var(--radius);background:var(--panel);border:1px solid var(--line)}
.ba-col.bad{border-color:rgba(248,113,113,.3)}
.ba-col.good{border-color:rgba(74,222,128,.34)}
.ba-col h4{
  font-family:var(--mono);font-size:12.5px;letter-spacing:.13em;text-transform:uppercase;margin-bottom:18px;
}
.ba-col.bad h4{color:var(--red)}
.ba-col.good h4{color:var(--green)}
.ba-col ul{list-style:none;display:flex;flex-direction:column;gap:13px}
.ba-col li{display:flex;gap:11px;align-items:flex-start;font-size:14.5px;color:var(--ink-dim)}
.ba-col.good li{color:var(--ink)}
.ba-col li i{font-style:normal;font-weight:800;flex-shrink:0;font-family:var(--mono)}
.ba-col.bad li i{color:var(--red)}
.ba-col.good li i{color:var(--green)}

.who{margin-top:44px}
.who h3{margin-bottom:16px}
.who-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.who-card{
  padding:22px;border-radius:var(--radius);border:1px solid var(--line);
  background:linear-gradient(180deg,var(--panel),var(--panel-2));
}
.who-card b{display:block;font-size:15px;margin-bottom:7px}
.who-card span{font-size:13.5px;color:var(--ink-dim)}

/* ---------------------------- CLOSING ------------------------------ */
.closing{text-align:center;padding:100px 0;border-bottom:none}
.close-mark{font-size:clamp(34px,6.4vw,64px);font-weight:800;letter-spacing:-.035em;margin-bottom:18px}
.closing h2{max-width:24ch;margin:0 auto}
/* keep the closing phrase on one line so Japanese doesn't split mid-word */
.closing h2 .grad{display:inline-block}
.closing .lead{margin-top:16px}
.cta-row.center{justify-content:center;margin-top:32px}
.event{
  display:inline-flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:10px;
  margin-top:44px;padding:15px 22px;border-radius:12px;
  border:1px solid var(--line);background:var(--panel);font-size:13.5px;color:var(--ink-dim);
}
.event-tag{
  font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--blue);border:1px solid rgba(110,168,255,.35);border-radius:100px;padding:3px 10px;
}
.event b{color:var(--ink)}

/* ----------------------------- FOOTER ------------------------------ */
/* white, column layout — same structure as the portal page */
/* z-index needed: body::before is a fixed gradient at z-index 0 and would
   otherwise paint over the white background of this footer */
.foot{position:relative;z-index:1;background:var(--l-bg);border-top:1px solid var(--l-line);padding:48px 0 34px}
.foot-top{display:flex;flex-wrap:wrap;gap:40px;justify-content:space-between}
.foot-brand{max-width:34ch}
.foot-brand .nal-logo{height:30px;margin-bottom:14px}
.foot-tag{font-size:13.5px;color:var(--l-mut)}
.foot-cols{display:flex;gap:60px;flex-wrap:wrap}
.foot-col h4{
  font-family:var(--mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--l-mut-2);margin-bottom:13px;font-weight:700;
}
/* 見出しを持たない列。h4 と同じ高さを空けて、隣の列と行頭を揃える */
.foot-col-nohead::before{content:"\00a0";display:block;visibility:hidden;font-family:var(--mono);font-size:11px;margin-bottom:13px}
.foot-col ul{list-style:none;display:flex;flex-direction:column;gap:9px}
.foot-col a{color:var(--l-ink-2);text-decoration:none;font-size:14px}
.foot-col a:hover{color:var(--brand)}
.foot-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid var(--l-line-2);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
}
.foot-copy{font-family:var(--mono);font-size:12px;color:var(--l-mut-2)}
.foot-site{color:var(--l-mut);text-decoration:none;font-size:13px}
.foot-site:hover{color:var(--brand)}

/* --------------------------- RESPONSIVE ---------------------------- */
@media(max-width:1000px){
  .nav-links{
    display:none;position:absolute;top:var(--navh);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;margin-left:0;
    background:var(--l-bg);border-bottom:1px solid var(--l-line);
    padding:8px 24px 16px;box-shadow:0 12px 24px rgba(15,23,42,.10);
  }
  .nav-links.open{display:flex}
  .nav-links a{
    padding:12px 0;font-size:15px;border-bottom:1px solid var(--l-line-2);border-left:0;
  }
  .nav-links a:hover{border-bottom-color:var(--l-line-2)}
  .nav-cta-m{display:block;color:var(--brand);font-weight:700}
  .burger{display:flex}
  .diagram{grid-template-columns:1fr;gap:18px}
  .wires{display:none}
  .fan{display:none}
  .col-center{order:-1}
  .out-grid,.pillars,.who-grid,.probs{grid-template-columns:1fr 1fr}
  .pillars .pcard:last-child,.probs .prob-card:last-child{grid-column:span 2}
  /* 狭い画面では動画をコピーの下へ回す */
  .hero-inner{grid-template-columns:1fr;row-gap:34px}
  .hero-title{font-size:clamp(46px,8.4vw,92px)}
  .hero-sub{font-size:clamp(19px,2.6vw,28px)}
  .hero-lede{max-width:66ch}
  /* 動画が低くなるぶん、ボタンは字幕に重ならないよう下端へ寄せる */
  .unmute{left:10px;bottom:10px;padding:7px 12px;font-size:12px}
}
@media(max-width:680px){
  :root{--navh:64px}
  .nav-right .nav-cta{display:none}
  .section{padding:60px 0}
  .hero{padding:56px 0 48px}
  .out-grid,.pillars,.who-grid,.ba,.stats,.probs{grid-template-columns:1fr}
  .pillars .pcard:last-child,.probs .prob-card:last-child{grid-column:auto}
  .stats{gap:12px}
  .cta-row .btn{width:100%}
  .nav-inner{gap:12px}
  .nal-logo{height:28px}
  .closing h2 .grad{display:inline}
  .foot-cols{gap:36px}
  .foot-bottom{flex-direction:column;align-items:flex-start}
}
@media(max-width:520px){
  /* the brand block never shrank, so logo + product name + language switch
     together overflowed the bar below ~420px. Stack the product name on two
     lines and tighten every gap so the row fits a 320px screen. */
  .nal-logo{height:24px}
  .brand{gap:8px}
  .nav-sep{height:30px}
  .brand-name{font-size:14px;line-height:1.05}
  .brand-thin{display:block;font-size:10.5px;line-height:1.15;letter-spacing:0}
  .nav-inner{gap:10px}
  .lang-switch button{padding:6px 7px;font-size:11px}
}
@media(max-width:420px){
  /* logo + language switch must always fit the fixed bar */
  .nav-cta{display:none}
}
@media(max-width:380px){
  .nav-inner{padding:0 16px}
}

@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .pulse,.cursor{animation:none}
  .sparks{display:none}
  .btn:hover,.pcard:hover,.out-card:hover,.prob-card:hover,.node:hover{transform:none}
}

/* 準備中サービスはリンクなし。トップページのフッターと同じ表示にする */
.foot-col .foot-soon{color:#a1a1aa;font-size:14px}