/* AWS Physical AI Catalog — shared design system */
:root{
  --bg:#ffffff; --bg2:#f5f5f7; --dark:#0b0d12; --dark2:#14171d;
  --ink:#1d1d1f; --sub:#6e6e73; --line:#e5e5ea;
  --aws:#FF9900; --navy:#232F3E;
  --acc:#FF9900;
  --radius:18px; --maxw:1080px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"Helvetica Neue","Hiragino Sans","Noto Sans JP",sans-serif;color:var(--ink);background:var(--bg);line-height:1.75;font-size:17px;overflow-x:hidden}
img,video{max-width:100%;display:block}
a{color:inherit;text-decoration:none}

/* ---------- nav ---------- */
.nav{position:sticky;top:0;z-index:100;backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);background:rgba(255,255,255,.78);border-bottom:1px solid rgba(0,0,0,.08)}
.nav.on-dark{background:rgba(11,13,18,.72);border-bottom:1px solid rgba(255,255,255,.08);color:#f5f5f7}
.nav-in{max-width:var(--maxw);margin:0 auto;display:flex;align-items:center;gap:22px;padding:0 20px;height:52px}
.nav-brand{font-weight:700;font-size:15px;letter-spacing:.02em;white-space:nowrap}
.nav-brand .aws-mark{color:var(--aws)}
.nav-links{display:flex;gap:20px;margin-left:auto;font-size:13.5px}
.nav-links a{color:inherit;opacity:.75;white-space:nowrap}
.nav-links a:hover{opacity:1}

/* ---------- hero ---------- */
.hero{position:relative;min-height:72svh;display:flex;align-items:flex-end;color:#fff;background:var(--dark);isolation:isolate}
.hero video,.hero .hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(92deg,rgba(5,7,10,.66) 0%,rgba(5,7,10,.42) 42%,rgba(5,7,10,.06) 78%),linear-gradient(180deg,rgba(5,7,10,.28) 0%,rgba(5,7,10,.08) 40%,rgba(5,7,10,.82) 100%);z-index:-1}
.hero h1,.hero .lede{text-shadow:0 2px 22px rgba(0,0,0,.5),0 1px 4px rgba(0,0,0,.35)}
.hero-in{max-width:var(--maxw);margin:0 auto;width:100%;padding:56px 20px 52px}
.hero .kicker{font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--aws);margin-bottom:10px}
.hero h1{font-size:clamp(30px,6vw,62px);line-height:1.16;font-weight:800;letter-spacing:-.02em}
.hero .lede{margin-top:14px;font-size:clamp(15.5px,2.2vw,20px);color:rgba(255,255,255,.82);max-width:640px}
.hero .cta-row{margin-top:26px;display:flex;gap:12px;flex-wrap:wrap}

.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 22px;border-radius:999px;font-size:15px;font-weight:600;transition:transform .18s ease,background .18s ease}
.btn:active{transform:scale(.97)}
.btn-primary{background:var(--aws);color:#111}
.btn-primary:hover{background:#ffad33}
.btn-ghost{background:rgba(255,255,255,.14);color:#fff;backdrop-filter:blur(8px)}
.btn-ghost:hover{background:rgba(255,255,255,.24)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#3a3a3c}

/* ---------- layout ---------- */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.section{padding:76px 0}
.section.alt{background:var(--bg2)}
.section.dark{background:var(--dark);color:#f5f5f7}
.section.dark .sub,.section.dark p.muted{color:rgba(245,245,247,.66)}
.kicker{font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--acc);margin-bottom:10px}
h2.head{font-size:clamp(26px,4.4vw,44px);line-height:1.2;font-weight:800;letter-spacing:-.02em;margin-bottom:14px}
p.lead{font-size:clamp(16px,2.1vw,19.5px);color:var(--sub);max-width:720px}
.section.dark p.lead{color:rgba(245,245,247,.72)}

/* ---------- cards ---------- */
.grid{display:grid;gap:22px}
@media(min-width:720px){.grid.cols2{grid-template-columns:1fr 1fr}.grid.cols3{grid-template-columns:1fr 1fr 1fr}}
.card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:0 2px 14px rgba(0,0,0,.06);transition:transform .28s ease,box-shadow .28s ease;position:relative}
.card:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(0,0,0,.12)}
/* Apple Store-like: demos first, image zoom on hover */
html{scroll-behavior:smooth}
.hero-compact{min-height:52svh}
@media(max-width:640px){.hero video,.hero .hero-img{object-position:24% 62%}}
.card .thumb img,.card .thumb video{transition:transform .5s cubic-bezier(.2,.6,.2,1)}
.card:hover .thumb img,.card:hover .thumb video{transform:scale(1.045)}
.card:hover .more{text-decoration:underline}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.card .thumb img,.card .thumb video{transition:none}}
/* control-method tags overlaid on demo card thumbnails */
.ttags{position:absolute;left:10px;bottom:10px;display:flex;gap:6px;flex-wrap:wrap;z-index:2;max-width:calc(100% - 20px)}
.ttags .chip{background:rgba(17,17,17,.62);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);color:#fff;border:1px solid rgba(255,255,255,.28);font-size:11.5px;font-weight:700;letter-spacing:.04em;padding:4px 11px;border-radius:999px;line-height:1.3;white-space:nowrap}
@media(max-width:480px){.ttags .chip{font-size:11px;padding:4px 10px}}
.section.dark .card{background:var(--dark2);box-shadow:0 2px 14px rgba(0,0,0,.4)}
.card .thumb{aspect-ratio:16/9;overflow:hidden;position:relative;background:#000}
.card .thumb img,.card .thumb video{width:100%;height:100%;object-fit:cover}
.card .body{padding:22px 24px 26px}
.card .tag{display:inline-block;font-size:11.5px;font-weight:700;letter-spacing:.08em;padding:4px 12px;border-radius:999px;margin-bottom:10px}
.card h3{font-size:21px;font-weight:750;letter-spacing:-.01em;line-height:1.35}
.card p{font-size:15px;color:var(--sub);margin-top:8px}
.section.dark .card p{color:rgba(245,245,247,.62)}
.card .more{margin-top:14px;font-size:15px;font-weight:650;color:#0071e3}
.card-link::after{content:"";position:absolute;inset:0}

/* ---------- feature rows ---------- */
.frow{display:grid;gap:26px;align-items:center;margin-top:44px}
@media(min-width:900px){.frow{grid-template-columns:1fr 1fr}.frow.rev>.fmedia{order:2}}
.fmedia{border-radius:var(--radius);overflow:hidden;background:#000;box-shadow:0 8px 30px rgba(0,0,0,.14)}
.fmedia img,.fmedia video{width:100%;height:100%;object-fit:cover}
.minihw{display:flex;gap:20px;align-items:center;margin-top:26px;background:var(--bg,#fff);border:1px solid rgba(15,23,42,.1);border-radius:14px;padding:16px 20px}
.minihw .mhimg{position:relative;flex:0 0 160px;border-radius:10px;overflow:hidden;background:#fff}
.minihw .mhimg img{display:block;width:100%}
.minihw h4{font-size:15.5px;font-weight:750;margin:0 0 6px}
.minihw p{font-size:13.5px;color:var(--sub);line-height:1.65;margin:0}
@media(max-width:640px){.minihw{flex-direction:column;align-items:flex-start}.minihw .mhimg{flex-basis:auto;width:180px}}
.ftext h3{font-size:clamp(21px,2.8vw,28px);font-weight:750;letter-spacing:-.01em;margin-bottom:10px}
.ftext p{color:var(--sub);font-size:16px}
.section.dark .ftext p{color:rgba(245,245,247,.66)}

/* ---------- steps ---------- */
.steps{counter-reset:step;display:grid;gap:14px;margin-top:36px}
@media(min-width:900px){.steps.h5{grid-template-columns:repeat(5,1fr)}.steps.h3{grid-template-columns:repeat(3,1fr)}.steps.h4{grid-template-columns:repeat(4,1fr)}}
.step{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 18px 20px}
.section.dark .step{background:var(--dark2);border-color:rgba(255,255,255,.1)}
.step::before{counter-increment:step;content:counter(step);display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:50%;background:var(--acc);color:#fff;font-weight:750;font-size:14.5px;margin-bottom:10px}
.step h4{font-size:16px;font-weight:700;margin-bottom:4px;line-height:1.4}
.step p{font-size:13.8px;color:var(--sub);line-height:1.6}
.section.dark .step p{color:rgba(245,245,247,.6)}

/* ---------- gallery ---------- */
.gal{display:grid;gap:16px;margin-top:36px}
@media(min-width:720px){.gal{grid-template-columns:1fr 1fr}}
@media(min-width:1080px){.gal.g3{grid-template-columns:1fr 1fr 1fr}}
.clip{border-radius:14px;overflow:hidden;background:#000;position:relative;cursor:pointer}
.clip video{width:100%;aspect-ratio:16/9;object-fit:cover}
.clip .cap{position:absolute;left:0;right:0;bottom:0;padding:24px 16px 12px;background:linear-gradient(transparent,rgba(0,0,0,.72));color:#fff;font-size:13.5px;font-weight:600}
.clip .play{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:56px;height:56px;border-radius:50%;background:rgba(255,255,255,.9);display:flex;align-items:center;justify-content:center;transition:opacity .2s,transform .2s;pointer-events:none}
.clip .play::after{content:"";display:block;border-style:solid;border-width:10px 0 10px 17px;border-color:transparent transparent transparent #111;margin-left:4px}
.clip.playing .play{opacity:0;transform:translate(-50%,-50%) scale(.8)}

/* ---------- spec table ---------- */
.spec{width:100%;border-collapse:collapse;margin-top:26px;font-size:15px}
.spec th,.spec td{text-align:left;padding:13px 14px;border-bottom:1px solid var(--line);vertical-align:top}
.spec th{white-space:nowrap;color:var(--sub);font-weight:600;width:34%}
.section.dark .spec th,.section.dark .spec td{border-color:rgba(255,255,255,.1)}
.section.dark .spec th{color:rgba(245,245,247,.55)}

/* ---------- pills / chips ---------- */
.chips{display:flex;flex-wrap:wrap;gap:9px;margin-top:18px}
.chip{font-size:13px;font-weight:650;padding:6px 14px;border-radius:999px;background:var(--bg2);border:1px solid var(--line);color:var(--ink)}
.section.dark .chip{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.14);color:#f5f5f7}
.chip.orange{background:#fff4e2;border-color:#ffd699;color:#8a5a00}
.chip.plan{background:#f0f0f5;color:#6e6e73;border-style:dashed}

/* ---------- notes ---------- */
.note{margin-top:22px;padding:16px 18px;border-radius:12px;background:var(--bg2);border-left:4px solid var(--aws);font-size:14.5px;color:#4b4b50}
.section.dark .note{background:rgba(255,255,255,.06);color:rgba(245,245,247,.72)}

/* ---------- sources ---------- */
.srcs{margin-top:30px;display:grid;gap:10px}
.src{display:flex;gap:14px;align-items:baseline;padding:14px 18px;border-radius:12px;background:#fff;border:1px solid var(--line);font-size:14.5px;transition:border-color .2s}
.src:hover{border-color:#bbb}
.src .stype{flex-shrink:0;font-size:11px;font-weight:750;letter-spacing:.06em;color:var(--aws);text-transform:uppercase;padding-top:2px;min-width:74px}
.src .stitle{font-weight:650}
.src .surl{display:block;font-size:12.5px;color:var(--sub);word-break:break-all;margin-top:2px}

/* ---------- aws icon row ---------- */
.svcgrid{display:grid;gap:14px;margin-top:34px;grid-template-columns:repeat(2,1fr)}
@media(min-width:720px){.svcgrid{grid-template-columns:repeat(3,1fr)}}
@media(min-width:1080px){.svcgrid{grid-template-columns:repeat(6,1fr)}}
.svc{display:flex;flex-direction:column;align-items:center;gap:10px;text-align:center;padding:18px 8px;border-radius:14px;background:#fff;border:1px solid var(--line)}
.section.dark .svc{background:var(--dark2);border-color:rgba(255,255,255,.1)}
.svc .icon{width:52px;height:52px;border-radius:12px;overflow:hidden}
.svc b{font-size:13.5px;line-height:1.35}
.svc span{font-size:11.8px;color:var(--sub);line-height:1.45}
.section.dark .svc span{color:rgba(245,245,247,.55)}

/* ---------- footer ---------- */
.footer{background:var(--dark);color:rgba(245,245,247,.55);padding:40px 0 60px;font-size:13px}
.footer .wrap{display:flex;flex-direction:column;gap:12px}
.footer .frow{display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center}
.footer .fsub{border-top:1px solid rgba(245,245,247,.12);padding-top:12px;font-size:11.5px;color:rgba(245,245,247,.42)}
.footer a{color:rgba(245,245,247,.8)}
.footer .fcontact{display:inline-flex;gap:14px;align-items:center}
.footer .ficon{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;background:rgba(245,245,247,.08);color:rgba(245,245,247,.75);transition:background .25s,color .25s}
.footer .ficon:hover{background:rgba(245,245,247,.18);color:#fff}
.footer .fdisc{max-width:72ch;line-height:1.6}

/* ---------- reveal ---------- */
section[id],h2[id],div[id]{scroll-margin-top:72px}
:focus-visible{outline:2.5px solid var(--aws);outline-offset:3px;border-radius:4px}
.nav-links a.active{color:var(--aws);font-weight:700}
.rv{opacity:0;transform:translateY(26px);transition:opacity .85s cubic-bezier(.16,1,.3,1),transform .85s cubic-bezier(.16,1,.3,1)}
.rv.in{opacity:1;transform:none}
/* 兄弟スタガー: 同時に現れるカード群を少しずつ遅らせて上質に */
.steps>.rv:nth-child(2),.grid>.rv:nth-child(2),.svcgrid>.rv:nth-child(2),.patgrid>.rv:nth-child(2){transition-delay:.09s}
.steps>.rv:nth-child(3),.grid>.rv:nth-child(3),.svcgrid>.rv:nth-child(3),.patgrid>.rv:nth-child(3){transition-delay:.18s}
.steps>.rv:nth-child(4),.svcgrid>.rv:nth-child(4){transition-delay:.27s}
.steps>.rv:nth-child(5),.svcgrid>.rv:nth-child(5){transition-delay:.36s}
.svcgrid>.rv:nth-child(6){transition-delay:.45s}
@media(prefers-reduced-motion:reduce){
  .rv{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* ---------- breadcrumb ---------- */
.crumb{font-size:13px;color:var(--sub);padding:16px 0 0}
.crumb a{color:#0071e3}

/* ---------- service links ---------- */
a.svclink{color:#0071e3;text-decoration:none;border-bottom:1px solid rgba(0,113,227,.28);white-space:nowrap}
a.svclink:hover{border-bottom-color:#0071e3}
.section.dark a.svclink,.e2c-box a.svclink{color:#6db2ff;border-bottom-color:rgba(109,178,255,.35)}
.section.dark a.svclink:hover{border-bottom-color:#6db2ff}
a.chip:hover{border-color:#999}

/* ---------- featured video ---------- */
.featvid{margin-top:36px;border-radius:var(--radius);overflow:hidden;background:#000;box-shadow:0 10px 36px rgba(0,0,0,.18)}
.featvid video{width:100%;display:block}
.featcap{font-size:14px;color:var(--sub);margin-top:12px}

/* ---------- model zukan ---------- */
.modelgrid{display:grid;gap:16px;margin-top:36px;grid-template-columns:1fr}
@media(min-width:720px){.modelgrid{grid-template-columns:1fr 1fr}}
@media(min-width:1080px){.modelgrid{grid-template-columns:repeat(4,1fr)}}
.model{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;display:flex;flex-direction:column;transition:transform .25s ease,box-shadow .25s ease;position:relative}
.model:hover{transform:translateY(-4px);box-shadow:0 12px 30px rgba(0,0,0,.12)}
.model .mvis{aspect-ratio:16/10;background:#f5f5f7;display:flex;align-items:center;justify-content:center;overflow:hidden}
.model .mvis img{width:100%;height:100%;object-fit:cover;transition:transform 3.2s cubic-bezier(.16,1,.3,1)}
.model:hover .mvis img{transform:scale(1.05)}
@media(prefers-reduced-motion:reduce){.model .mvis img{transition:none}.model:hover .mvis img{transform:none}}
.model .mvis.typo{font-weight:800;letter-spacing:-.02em;color:#fff;font-size:44px}
.model .mbody{padding:16px 18px 20px;flex:1}
.model .morg{font-size:11.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--sub)}
.model h4{font-size:18px;font-weight:750;margin:2px 0 6px}
.model p{font-size:13.5px;color:var(--sub);line-height:1.65}
.model .mbadge{position:absolute;top:12px;right:12px;background:var(--aws);color:#111;font-size:11px;font-weight:750;padding:4px 11px;border-radius:999px}
.model .mrole{margin-top:10px;font-size:12.5px;font-weight:650;color:#0071e3;display:block;text-wrap:balance}
/* image source credit (small overlay, bottom-right of media box) */
.imgcredit{position:absolute;right:8px;bottom:6px;font-size:9.5px;line-height:1.3;color:rgba(255,255,255,.85);background:rgba(0,0,0,.45);padding:2px 8px;border-radius:999px;letter-spacing:.02em;pointer-events:auto;z-index:2}
.imgcredit a{color:inherit;text-decoration:none}
.imgcredit a:hover{text-decoration:underline}
.model .mvis{position:relative}
.fmedia{position:relative}

/* ---------- step images ---------- */
.step .simg{width:calc(100% + 36px);margin:-18px -18px 12px;aspect-ratio:16/9;object-fit:cover;display:block}
.step{overflow:hidden}
/* 画像つきステップ: 番号チップを画像の上に重ねて見切れを防ぐ */
.step:has(.simg){position:relative}
.step:has(.simg)::before{position:absolute;top:12px;left:12px;z-index:2;margin-bottom:0;box-shadow:0 2px 10px rgba(0,0,0,.4);border:2px solid rgba(255,255,255,.85)}

/* ---------- gif gallery ---------- */
.gifrow{display:grid;gap:16px;margin-top:34px;grid-template-columns:1fr}
@media(min-width:900px){.gifrow{grid-template-columns:1fr 1fr 1fr}}
.gifcard{border-radius:14px;overflow:hidden;background:#000;position:relative}
.gifcard img{width:100%;aspect-ratio:16/10;object-fit:cover}
.gifcard .cap{position:absolute;left:0;right:0;bottom:0;padding:22px 14px 10px;background:linear-gradient(transparent,rgba(0,0,0,.75));color:#fff;font-size:13px;font-weight:600}

/* ---------- next cards (回遊導線) ---------- */
.nextgrid{display:grid;gap:18px;margin-top:34px;grid-template-columns:1fr}
@media(min-width:720px){.nextgrid{grid-template-columns:1fr 1fr}}
.nextcard{position:relative;border-radius:16px;overflow:hidden;min-height:190px;display:flex;align-items:flex-end;color:#fff;background:#000;transition:transform .25s ease,box-shadow .25s ease}
.nextcard:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(0,0,0,.22)}
.nextcard img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.85;transition:transform .6s ease}
.nextcard:hover img{transform:scale(1.05)}
.nextcard .nc{position:relative;padding:44px 20px 18px;width:100%;background:linear-gradient(transparent,rgba(0,0,0,.8))}
.nextcard .nk{font-size:11px;font-weight:750;letter-spacing:.1em;text-transform:uppercase;color:var(--aws)}
.nextcard b{display:block;font-size:19px;font-weight:750;margin-top:2px;text-wrap:balance}
.nextcard span{font-size:13px;color:rgba(255,255,255,.75)}

/* ---------- hero stats ---------- */
.statrow{display:flex;gap:26px;flex-wrap:wrap;margin-top:28px}
.stat{min-width:110px}
.stat b{display:block;font-size:clamp(24px,3.4vw,36px);font-weight:800;letter-spacing:-.02em;color:#fff}
.stat span{font-size:12.5px;color:rgba(255,255,255,.65)}

/* ---------- mini line icons ---------- */
.lic{width:40px;height:40px;border-radius:10px;background:var(--bg2);display:flex;align-items:center;justify-content:center;margin-bottom:12px}
.lic svg{width:22px;height:22px;stroke:var(--acc);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

/* ---------- misc ---------- */
.center{text-align:center}
.mt0{margin-top:0}.mt20{margin-top:20px}.mt40{margin-top:40px}
.muted{color:var(--sub)}

/* ---------- orphan-line prevention ---------- */
h1,h2,h3,h4,.tag,.btn,.chip,.cap{text-wrap:balance}
p,li,.lede{text-wrap:pretty}
.step p,.card p,.opb,td,th,.step h4{text-wrap:balance}
.e2c-item span,.svc span,.svc b,.stitle{display:block;text-wrap:balance}
.src{min-width:0}
.src>span:last-child{min-width:0;flex:1}
.surl{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}
@media(max-width:719px){
  .hero h1 br{display:none}
  h2.head br{display:none}
  .spec th,.spec td{display:block;width:auto}
  .spec th{padding:13px 14px 0;border-bottom:0;white-space:normal}
  .spec td{padding:2px 14px 13px}
}

/* ---------- language selector ---------- */
.langsel{display:flex;gap:4px;margin-left:14px;flex-shrink:0}
.langsel button{font-size:12px;font-weight:650;padding:7px 11px;border-radius:999px;border:1px solid var(--line);background:transparent;color:inherit;cursor:pointer;opacity:.65;white-space:nowrap;min-height:30px}
.langsel button:hover{opacity:1}
.langsel button.on{background:var(--ink);color:#fff;border-color:var(--ink);opacity:1}
.nav.on-dark .langsel button.on{background:#f5f5f7;color:#111;border-color:#f5f5f7}
@media(max-width:719px){
  .nav-links{display:none}
  .langsel{margin-left:auto;gap:3px}
  .langsel button{font-size:10.5px;padding:3px 6px;letter-spacing:0}
  .nav-in{gap:10px;padding:0 12px}
  .nav-brand{font-size:13.5px}
}