/* World of Defense White Paper. Colours and type follow the promo homepage (navy #172841, blue #2458e5, Arial). */
:root{
  --ink:#172841;
  --muted:#5c6a7d;
  --quiet:#8190a5;
  --blue:#2458e5;
  --blue-deep:#193faf;
  --tint:#edf3ff;
  --tint-line:#c9d9ff;
  --line:#dbe2ee;
  --card:#f4f7fc;
  --gold:#e7bf7b;
  --navy-deep:#0f1c30;
  --good:#346147;
  --good-bg:#edf8ef;
  --good-line:#d5eada;
  --bg:#fff;
  color-scheme:light;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.75 Arial,Helvetica,"Hiragino Sans","Yu Gothic UI","Meiryo","PingFang SC","Microsoft YaHei","Apple SD Gothic Neo","Malgun Gothic",sans-serif;-webkit-text-size-adjust:100%}
/* Chinese, Japanese and Korean: no negative tracking on headings; Korean breaks lines between words */
html:is(:lang(ja),:lang(zh),:lang(ko)) :is(h1,h2,h3,h4,.facts strong){letter-spacing:0}
html:lang(ko) body{word-break:keep-all}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
a:focus-visible{outline:3px solid var(--blue);outline-offset:4px;border-radius:4px}
img{max-width:100%;height:auto}
h1,h2,h3{font-weight:750;letter-spacing:-.04em;line-height:1.15;margin:0}
p{margin:0 0 16px}
ul,ol{margin:0 0 18px;padding-left:22px}
li{margin:6px 0}
strong{font-weight:700}
.skip{position:absolute;left:16px;top:-60px;background:#fff;padding:10px 14px;z-index:20}
.skip:focus{top:12px}

/* header */
.site-header{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.site-header .inner{max-width:1240px;margin:0 auto;height:76px;padding:0 32px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink)}
.brand:hover{text-decoration:none}
.brand img{display:block;width:auto;height:44px}
.site-nav{display:flex;align-items:center;gap:26px;font-size:14px;font-weight:600}
.site-nav a{color:var(--ink)}
.site-nav a:hover{color:var(--blue);text-decoration:none}
.site-nav .pill{color:var(--blue);background:var(--tint);border:1px solid #d9e3ff;padding:9px 14px;border-radius:7px}

/* language menu: a details element, so it works without JavaScript */
.lang{position:relative}
.lang summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:6px;padding:8px 10px;border:1px solid var(--line);border-radius:7px;font-size:13px;font-weight:700;color:var(--ink);white-space:nowrap}
.lang summary::-webkit-details-marker{display:none}
.lang summary svg{width:16px;height:16px;flex:none}
.lang summary::after{content:"";width:6px;height:6px;margin-left:2px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:translateY(-2px) rotate(45deg)}
.lang[open] summary,.lang summary:hover{color:var(--blue);border-color:var(--tint-line)}
.lang ul{position:absolute;right:0;top:calc(100% + 8px);margin:0;padding:6px;list-style:none;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:0 10px 30px #23375a18;min-width:180px;z-index:30}
.lang li{margin:0}
.lang a{display:block;padding:8px 10px;border-radius:6px;color:var(--ink);font-weight:600}
.lang a:hover{background:var(--tint);text-decoration:none}
.lang a[aria-current="page"]{color:var(--blue);background:var(--tint)}

/* hero */
.hero{border-bottom:1px solid var(--line);background:linear-gradient(180deg,#f6f9ff,#fff)}
.hero .inner{max-width:1240px;margin:0 auto;padding:64px 32px 52px}
.kicker{display:inline-flex;align-items:center;gap:10px;font-size:12px;font-weight:700;letter-spacing:1.4px;color:var(--blue);text-transform:uppercase}
.tag{display:inline-block;color:var(--blue);background:var(--tint);border:1px solid #dbe5ff;border-radius:4px;padding:4px 8px;font-size:11px;letter-spacing:.7px}
.hero h1{font-size:clamp(40px,6vw,72px);letter-spacing:-3px;margin:20px 0 18px;max-width:900px}
.hero h1 em{font-style:normal;color:var(--blue)}
.hero .lead{font-size:18px;color:var(--muted);max-width:760px}
.hero .meta{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:22px;font-size:13px;color:var(--quiet)}
.facts{display:grid;grid-template-columns:repeat(5,1fr);margin-top:40px;border-top:1px solid var(--line);padding-top:24px;gap:16px}
.facts strong{display:block;font-size:30px;letter-spacing:-1.5px;color:var(--blue);line-height:1.2}
.facts span{font-size:13px;color:var(--muted)}

/* layout */
.layout{max-width:1240px;margin:0 auto;padding:48px 32px 32px;display:grid;grid-template-columns:240px minmax(0,1fr);gap:56px}
.toc{position:sticky;top:100px;align-self:start;font-size:14px}
.toc details{border:1px solid var(--line);border-radius:10px;padding:14px 16px;background:#fff}
.toc summary{font-size:11px;font-weight:700;letter-spacing:1.2px;color:var(--quiet);text-transform:uppercase;cursor:pointer;list-style:none}
.toc summary::-webkit-details-marker{display:none}
.toc ol{list-style:none;padding:0;margin:12px 0 0;counter-reset:toc}
.toc li{margin:0;counter-increment:toc}
.toc a{display:flex;gap:10px;padding:6px 0;color:var(--muted);line-height:1.35}
.toc a::before{content:counter(toc,decimal-leading-zero);color:var(--quiet);font-size:12px;min-width:20px;padding-top:1px}
.toc a:hover{color:var(--blue);text-decoration:none}
.content{min-width:0;max-width:820px}

/* sections */
.section{padding:8px 0 44px;border-bottom:1px solid var(--line);margin-bottom:44px}
.section:last-child{border-bottom:0}
.section-head{display:flex;gap:16px;align-items:baseline;margin-bottom:18px}
.section-head .num{font-size:14px;font-weight:700;color:var(--quiet);letter-spacing:1px}
.section h2{font-size:34px;letter-spacing:-1.5px}
.section h3{font-size:21px;letter-spacing:-.6px;margin:30px 0 12px}
.section .point{font-size:18px;color:var(--ink);line-height:1.7}
.muted{color:var(--muted)}
.note{font-size:14px;color:var(--muted)}
.callout{background:var(--tint);border:1px solid var(--tint-line);border-radius:12px;padding:18px 22px;margin:22px 0}
.callout p:last-child{margin:0}

/* numbered rules */
.rules{list-style:none;padding:0;counter-reset:r;display:grid;gap:12px}
.rules li{counter-increment:r;display:grid;grid-template-columns:44px 1fr;gap:4px;padding:16px 18px;background:var(--card);border-radius:10px;margin:0}
.rules li::before{content:counter(r,decimal-leading-zero);font-weight:700;color:var(--blue);font-size:18px;line-height:1.5}

/* tables */
.table-wrap{overflow-x:auto;margin:18px 0 22px;border:1px solid var(--line);border-radius:12px;-webkit-overflow-scrolling:touch}
table{border-collapse:collapse;width:100%;min-width:620px;font-size:14px;line-height:1.55}
th{background:#edf2fb;color:#304668;text-align:left;font-weight:700;padding:12px 14px;white-space:nowrap}
td{padding:12px 14px;border-top:1px solid var(--line);vertical-align:top;color:#33445c}
td:first-child{font-weight:700;color:var(--ink);white-space:nowrap}
tr.hl td{background:#f7f9ff}
.table-wrap.narrow table{min-width:0}
#campaign td:nth-child(2),#campaign td:last-child{white-space:nowrap}
.chip{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.3px;border-radius:4px;padding:2px 7px;border:1px solid var(--line);background:#f0f3f8;color:#718096;white-space:nowrap}
.chip.done{color:var(--good);background:var(--good-bg);border-color:var(--good-line)}
.chip.progress{color:var(--blue);background:var(--tint);border-color:#d9e3ff}
.tier{font-weight:700}
.t-common{color:#6b7787}.t-uncommon{color:#2f8a52}.t-rare{color:#2458e5}.t-epic{color:#8750c1}.t-legendary{color:#b8790b}.t-relic{color:#be3450}

/* feature list */
.features{list-style:none;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.features li{margin:0;padding:16px 18px;border:1px solid var(--line);border-radius:10px}
.features strong{display:block;color:var(--ink);margin-bottom:4px}
.features span{font-size:14px;color:var(--muted)}

/* steps */
.steps{list-style:none;padding:0;counter-reset:s;display:grid;gap:10px}
.steps li{counter-increment:s;display:flex;gap:14px;align-items:flex-start;margin:0}
.steps li::before{content:counter(s);flex:none;width:28px;height:28px;border-radius:50%;background:var(--tint);color:var(--blue);font-weight:700;font-size:13px;display:grid;place-items:center;margin-top:1px}

/* two columns */
.two{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:18px 0}
.two > div{border:1px solid var(--line);border-radius:12px;padding:18px 20px}
.two h4{margin:0 0 8px;font-size:15px}
.two ul{margin:0}
.two .yes h4{color:var(--good)}
.two .no h4{color:#a33a3a}

/* diagram */
.figure{margin:22px 0 10px;border:1px solid var(--line);border-radius:14px;padding:16px;background:#fff}
.figure svg{display:block;width:100%;height:auto;font-family:Arial,Helvetica,"Hiragino Sans","Yu Gothic UI","Meiryo","PingFang SC","Microsoft YaHei","Apple SD Gothic Neo","Malgun Gothic",sans-serif}
.figure figcaption{font-size:13px;color:var(--muted);margin-top:8px}
.d-title{font-size:15px;font-weight:700;fill:var(--ink)}
.d-name{font-size:13px;font-weight:700;fill:var(--ink)}
.d-line{font-size:11.5px;fill:var(--muted)}
.d-line.on{fill:var(--ink)}
.d-label{font-size:11.5px;fill:var(--muted)}
.d-box{fill:none;stroke:#9aa7ba;stroke-width:1.25}
.d-box.accent{fill:var(--tint);stroke:var(--blue);stroke-width:2}
.d-edge{fill:none;stroke:#9aa7ba;stroke-width:1.25}
.d-arrow{fill:#9aa7ba}
.d-box.next{stroke-dasharray:4 4}
.d-name.dim{fill:var(--muted)}
.d-gate{fill:var(--blue)}

/* roadmap */
.roadmap{list-style:none;padding:0;margin:18px 0 0;border-top:1px solid var(--line)}
.roadmap li{display:grid;grid-template-columns:56px minmax(0,1fr);gap:14px;padding:18px 0;border-bottom:1px solid var(--line);margin:0}
.roadmap .n{font-size:30px;font-weight:500;letter-spacing:-2px;color:#b7c2d3;line-height:1.1}
.roadmap li.nft{background:var(--tint);border:1px solid var(--tint-line);border-radius:12px;padding:18px 16px;margin:10px -16px}
.roadmap li.nft .n{color:var(--blue)}
.roadmap h3{font-size:19px;margin:6px 0 4px;letter-spacing:-.4px}
.roadmap p{margin:0;font-size:15px;color:var(--muted)}

/* footer */
.site-footer{border-top:1px solid var(--line);margin-top:24px}
.site-footer .inner{max-width:1240px;margin:0 auto;padding:28px 32px 36px;display:flex;flex-wrap:wrap;gap:16px 28px;align-items:center;justify-content:space-between;font-size:13px;color:var(--quiet)}
.site-footer nav{display:flex;gap:22px;font-weight:600}
.site-footer nav a{color:var(--ink)}

/* 404 */
.notfound{max-width:640px;margin:0 auto;padding:120px 32px;text-align:center}
.notfound h1{font-size:44px;margin-bottom:14px}

@media (max-width:1020px){
  .layout{grid-template-columns:1fr;gap:20px;padding-top:28px}
  .toc{position:static}
  .toc details:not([open]) ol{display:none}
  .facts{grid-template-columns:repeat(2,1fr)}
  .facts div:last-child{grid-column:1/-1}
}
@media (max-width:760px){
  html{scroll-padding-top:76px}
  .site-header .inner{height:64px;padding:0 16px}
  .site-nav{gap:14px}
  .site-nav .hide-sm{display:none}
  .brand img{height:36px}
  .lang summary{padding:7px 8px}
  .hero .inner{padding:40px 16px 36px}
  .hero h1{letter-spacing:-1.8px}
  .hero .lead{font-size:16px}
  .layout{padding:24px 16px 16px}
  .section h2{font-size:28px}
  .features,.two{grid-template-columns:1fr}
  .site-footer .inner{padding:24px 16px 30px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
@media print{
  .site-header,.toc,.skip{display:none}
  .layout{display:block;padding:0}
  .section{break-inside:auto}
  .table-wrap{overflow:visible;border:0}
  table{min-width:0}
}

.preview-notice{padding:10px 24px;background:#edf3ff;color:#172841;font-size:12px;text-align:center}.route-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:24px 0}.route-card{padding:20px;border:1px solid var(--line);border-radius:12px;background:var(--card)}.route-card h4{font-size:18px;margin:0 0 6px}.route-card p{font-size:14px;margin:0}.wave-strip{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px;margin:24px 0}.wave-step{border:1px solid var(--line);border-top:3px solid var(--blue);border-radius:8px;padding:12px}.wave-step strong{display:block;color:var(--blue);font-size:22px}.wave-step span{font-size:12px}.kingdom-detail{border:1px solid var(--line);border-radius:10px;margin:14px 0;padding:16px}.kingdom-detail summary{font-weight:700;cursor:pointer}.kingdom-detail .table-wrap{margin-bottom:0}.lang .pending{display:block;padding:8px 10px;color:var(--quiet);font-size:12px}.content code{overflow-wrap:anywhere}.facts{grid-template-columns:repeat(5,minmax(0,1fr))}#campaign td:nth-child(2),#campaign td:last-child{white-space:normal}#campaign td:first-child{white-space:nowrap}@media(max-width:640px){.route-cards{grid-template-columns:1fr}.wave-strip{grid-template-columns:repeat(2,minmax(0,1fr))}.facts{grid-template-columns:repeat(2,minmax(0,1fr))}.hero h1{letter-spacing:-1.5px}.site-header .inner{gap:12px}.site-nav{gap:12px}.brand img{max-width:125px;height:auto}}
.hero-nft{margin:0}.hero-nft img{display:block;width:100%;height:auto;aspect-ratio:1;border-radius:18px;border:1px solid var(--line);background:#0f1c30;box-shadow:0 18px 40px #23375a1f}.hero-nft figcaption{margin-top:10px;font-size:12px;color:var(--quiet)}
@media (min-width:1021px){.hero .inner{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,380px);column-gap:56px;align-items:start}.hero .inner>*{grid-column:1}.hero .inner>.hero-nft{grid-column:2;grid-row:1 / span 4;align-self:center}.hero .inner>.facts{grid-column:1 / -1}}
@media (max-width:1020px){.hero-nft{max-width:340px;margin:26px 0 4px}}