/* ZONE STRIKE — ゲーム紹介（about.html）とライセンス（license.html）の見た目。
   本体の interface.css と同じ配色（暗い青緑の地・生成りの文字・オレンジの差し色）。
   囲みは全周の細い枠だけで、片側だけの色線は使わない。 */
:root{color-scheme:dark;--bg:#101718;--bg2:#0b1214;--ink:#f0ede2;--muted:#a8afaa;--line:rgba(230,235,221,.19);--accent:#ed713d;--accent-light:#ffa475;--panel:rgba(12,20,22,.78);--disp:Impact,"Arial Narrow","Helvetica Neue",sans-serif;--body:-apple-system,BlinkMacSystemFont,"Helvetica Neue","Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--body);font-size:15px;line-height:1.9;letter-spacing:.02em;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent-light)}
b,strong{font-weight:700;color:var(--ink)}
/* 背景：ゲーム本体（./?bg=1）。読み込む前は静止画 */
#bgStill{position:fixed;inset:0;z-index:0;background:#0b1214 url(../img/hero.jpg) center/cover no-repeat;opacity:1;transition:opacity 1.2s}
body.live #bgStill{opacity:0}
#bg{position:fixed;inset:0;z-index:0;width:100%;height:100%;border:0;opacity:0;transition:opacity 1.2s;pointer-events:none}
body.live #bg{opacity:1}
#bgVeil{position:fixed;inset:0;z-index:1;pointer-events:none;background:linear-gradient(180deg,rgba(9,17,19,.42),rgba(9,17,19,.62));transition:background .8s,opacity .8s}
/* Monitor feed: while the live scene runs, it is watched through a screen (scanlines, corner falloff, a thin tear now and then). The still image keeps the plain gradient. */
body.live #bgVeil{background:repeating-linear-gradient(180deg,rgba(0,0,0,.085) 0 1px,transparent 1px 3px),radial-gradient(ellipse 78% 68% at 50% 50%,transparent 60%,rgba(4,9,11,.5) 100%),linear-gradient(180deg,rgba(9,17,19,.42),rgba(9,17,19,.62))}
body.live #bgVeil::after{content:"";position:absolute;left:0;right:0;top:-3%;height:2.2%;background:linear-gradient(180deg,transparent,rgba(190,235,245,.09) 45%,rgba(255,255,255,.14) 50%,rgba(190,235,245,.09) 55%,transparent);opacity:0;animation:feedTear 11s linear infinite}
@keyframes feedTear{0%,86%{opacity:0;top:-3%}87%{opacity:1;top:-3%}96%{opacity:1;top:103%}96.1%,100%{opacity:0;top:103%}}
@media(prefers-reduced-motion:reduce){body.live #bgVeil::after{animation:none}}
body[data-veil="1"] #bgVeil{background:linear-gradient(180deg,rgba(9,17,19,.66),rgba(9,17,19,.82))}
body[data-veil="2"] #bgVeil{background:rgba(9,17,19,.9)}
#bgSwap{position:fixed;inset:0;z-index:1;pointer-events:none;background:#0b1214;opacity:0;transition:opacity .35s}
body.swapping #bgSwap{opacity:1}
html.nobg #bg,html.nobg #bgStill,html.nobg #bgSwap,html.nobg #live{display:none}
html.nobg #bgVeil{background:radial-gradient(120% 90% at 50% 0%,#17252a,#0b1214 70%)}
main{position:relative;z-index:2}
/* 読み込みの幕 */
/* 上部 */
#top{position:fixed;top:0;left:0;right:0;z-index:30;display:flex;align-items:center;justify-content:space-between;padding:14px 22px;background:linear-gradient(180deg,rgba(9,17,19,.9),rgba(9,17,19,0));pointer-events:none}
#top>*{pointer-events:auto}
#top .brand{font-family:var(--disp);font-size:22px;letter-spacing:.06em;color:var(--ink);text-decoration:none}
#top .brand i{display:inline-block;width:.32em;height:.32em;background:var(--accent);margin-left:.12em;vertical-align:baseline}
#top .tools{display:flex;gap:8px;align-items:center}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:0 24px;border:1px solid var(--accent);background:var(--accent);color:#111b1c;font-weight:750;font-size:13px;letter-spacing:.08em;text-decoration:none;transition:background .16s,color .16s,border-color .16s;touch-action:manipulation}
.btn:hover{background:#ff8a55;border-color:#ff8a55}
.btn.ghost{background:transparent;border-color:var(--line);color:var(--ink);font-weight:550}
.btn.ghost:hover{background:rgba(235,238,223,.09);border-color:rgba(235,238,223,.5)}
.btn.big{min-height:56px;padding:0 34px;font-size:14px}
.btn.small{min-height:36px;padding:0 14px;font-size:10px}
#top .btn.small{background:var(--accent);color:#111b1c}
#top .btn.ghost.small{background:rgba(9,17,19,.6);color:var(--ink)}
#bgToggle[aria-pressed="false"] span{color:var(--muted)}
/* 節 */
.wrap{width:min(1040px,calc(100% - 40px));margin:0 auto}
.chapter{padding:96px 0}
.card{background:var(--panel);border:1px solid var(--line);padding:38px 40px;backdrop-filter:blur(6px)}
.card.narrow{max-width:760px}
.lead{margin:0 0 14px;font-size:10px;font-weight:700;letter-spacing:.2em;color:var(--accent-light)}
h2{margin:0 0 16px;font-size:clamp(21px,2.9vw,29px);line-height:1.3;font-weight:750;letter-spacing:.01em}
h2 .en{display:block;font-family:var(--disp);font-weight:500;font-size:.62em;letter-spacing:.06em;color:var(--muted);margin-top:6px}
h3{margin:0 0 8px;font-size:17px;font-weight:750}
p{margin:0 0 14px;color:#d6dbd2;overflow-wrap:anywhere}
p:last-child{margin-bottom:0}
.note{font-size:12px;color:var(--muted)}
.js .rv{opacity:0;transform:translateY(16px);transition:opacity .7s ease,transform .7s ease}
.js .rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.js .rv{opacity:1;transform:none;transition:none}}
.feats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:26px}
.feat{border:1px solid var(--line);padding:18px 18px 16px}
.feat .num{font-family:var(--disp);font-size:26px;color:var(--accent);letter-spacing:.04em;margin-bottom:6px}
.feat p{font-size:13px;line-height:1.8}
.shot{border:1px solid var(--line);background:#0b1214;overflow:hidden}
.shot img{width:100%;aspect-ratio:16/9;object-fit:cover}
.shot figcaption{padding:8px 12px;font-size:11px;color:var(--muted);letter-spacing:.06em;border-top:1px solid var(--line)}
.two{display:grid;grid-template-columns:1.1fr .9fr;gap:26px;align-items:center}
.two.flip{grid-template-columns:.9fr 1.1fr}
.two.flip .text{order:2}
.two.flip .shot{order:1}
.stage-tag{display:inline-block;font-family:var(--disp);font-size:14px;letter-spacing:.12em;color:var(--accent-light);margin-bottom:8px}
.weapons{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:22px}
.weapon{border:1px solid var(--line);padding:16px 18px}
.weapon small{display:block;font-size:9px;letter-spacing:.18em;color:var(--accent-light);font-weight:700;margin-bottom:4px}
.weapon p{font-size:13px;line-height:1.8}
.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:22px}
/* Arena screenshots: the lobby runs the full width, the entry and the bout share the row below, so none of the three is a thumbnail. */
.grid3.shots{grid-template-columns:repeat(2,minmax(0,1fr))}.grid3.shots>.shot:first-child{grid-column:1/-1}
table{width:100%;border-collapse:collapse;font-size:13px;margin-top:14px}
table+.note{margin-top:18px}
th,td{padding:10px 8px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
th{color:var(--muted);font-weight:600;font-size:11px;letter-spacing:.1em;white-space:nowrap}
kbd{display:inline-block;padding:2px 7px;border:1px solid rgba(240,237,226,.35);font-size:11px;font-family:var(--body);letter-spacing:.06em}
dl.faq{margin:0}
dl.faq dt{font-weight:750;margin-top:18px}
dl.faq dd{margin:6px 0 0;color:#d6dbd2;font-size:14px}
/* ヒーロー */
#hero{min-height:100svh;display:flex;flex-direction:column;justify-content:center;padding:120px 0 80px;position:relative}
#hero .kicker{margin:0 0 20px;font-size:10px;font-weight:700;letter-spacing:.22em;color:var(--accent-light)}
#hero h1{margin:0;font-family:var(--disp);font-weight:900;font-size:clamp(84px,14vw,168px);line-height:.85;letter-spacing:-.02em}
#hero h1 i{display:inline-block;width:.16em;height:.16em;background:var(--accent);margin-left:.08em}
#hero .tag{margin:26px 0 0;font-size:clamp(15px,1.6vw,18px);font-weight:750;letter-spacing:.06em;max-width:640px}
#hero .desc{margin:14px 0 0;max-width:600px;color:#d6dbd2;font-size:14px}
.pills{list-style:none;padding:0;margin:26px 0 0;display:flex;flex-wrap:wrap;gap:8px}
.pills li{border:1px solid var(--line);padding:6px 12px;font-size:11px;letter-spacing:.1em;color:#d6dbd2;background:rgba(9,17,19,.5)}
.cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
#live{margin:22px 0 0;font-size:10px;letter-spacing:.16em;color:var(--muted);opacity:0;transition:opacity .8s}
body.live #live{opacity:1}
#live i{display:inline-block;width:7px;height:7px;background:var(--accent);margin-right:8px;animation:blink 1.4s steps(2) infinite;vertical-align:middle}
@keyframes blink{50%{opacity:.15}}
.scrollcue{position:absolute;left:0;bottom:26px;font-size:9px;letter-spacing:.3em;color:var(--muted)}
#last{text-align:center}
#last .card{padding:56px 40px}
footer.site{position:relative;z-index:2;padding:34px 22px 60px;text-align:center;font-size:11px;letter-spacing:.06em;color:var(--muted);background:linear-gradient(180deg,rgba(9,17,19,0),rgba(9,17,19,.9))}
footer.site a{color:var(--ink);text-decoration:none;border-bottom:1px solid rgba(240,237,226,.3)}
footer.site .cast{margin:0 0 16px;font-size:12px;letter-spacing:.04em;color:var(--ink)}footer.site .cast span{display:inline-block;margin-right:12px;font-size:9px;letter-spacing:.18em;color:var(--accent)}
/* ライセンス */
/* ---- ライセンス・クレジット：控えめな見出し、左にラベル・右に本文の二段組（narrow では縦積み）。囲みは全周の細い線だけ。 ---- */
.license{background:var(--bg2)}
.license main{max-width:820px;margin:0 auto;padding:110px 22px 80px}
.license .doc-head{padding-bottom:26px;border-bottom:1px solid var(--line)}
.license .lead{margin-bottom:10px}
.license h1{margin:0;font-size:22px;font-weight:650;letter-spacing:.06em;line-height:1.5}
.license .doc-intro{margin:12px 0 0;max-width:600px;font-size:14px;line-height:1.9;color:#c9d1cb}
.license .doc-meta{display:flex;flex-wrap:wrap;gap:6px 22px;margin:14px 0 0;font-size:11px;letter-spacing:.08em;color:var(--muted);font-variant-numeric:tabular-nums}
.license .row{display:grid;grid-template-columns:168px minmax(0,1fr);gap:8px 32px;padding:26px 0;border-bottom:1px solid var(--line)}
.license h2{margin:0;padding-top:2px;font-size:12px;font-weight:700;letter-spacing:.14em;line-height:1.7;color:var(--accent-light)}
.license .row p{margin:0;font-size:14px;line-height:1.9}
.license .row p+p{margin-top:10px}
.license .entries{list-style:none;margin:0;padding:0}
.license .entries li{display:flex;flex-wrap:wrap;align-items:baseline;gap:2px 12px;padding:10px 0;border-top:1px solid rgba(230,235,221,.1);font-size:14px;line-height:1.8}
.license .entries li:first-child{border-top:0;padding-top:0}
.license .entries b{font-weight:650}
.license .entries .by{color:var(--muted);font-size:13px}
.license .entries .src{flex-basis:100%;font-size:12px;letter-spacing:.04em;font-variant-numeric:tabular-nums}
.license .entries .src a,.license .note a{color:#c9d1cb;text-decoration:none;border-bottom:1px solid rgba(240,237,226,.28);padding-bottom:1px}
.license .entries .src a:hover,.license .note a:hover{color:var(--ink);border-bottom-color:var(--accent)}
.license .entries .use{flex-basis:100%;font-size:13px;color:#c9d1cb}
.license .plain{margin:0;padding-left:1.2em}
.license .plain li{margin:0 0 10px;font-size:13.5px;line-height:1.9;color:#d6dcd4}
.license .plain li::marker{color:var(--muted)}
.license .note{margin:14px 0 0;font-size:12.5px;line-height:1.9;color:var(--muted)}
.license footer{display:flex;flex-wrap:wrap;gap:8px 20px;margin-top:40px;font-size:12px;letter-spacing:.04em}
.license footer a{color:var(--ink);text-decoration:none;border-bottom:1px solid rgba(240,237,226,.3);padding-bottom:1px}
.license footer a:hover{border-bottom-color:var(--accent)}
@media(max-width:700px){.license main{padding:92px 20px 64px}.license .row{grid-template-columns:1fr;gap:10px;padding:22px 0}.license h1{font-size:19px}.license .doc-intro{font-size:13.5px}}
@media (max-width:760px){
 .chapter{padding:64px 0}
 .card{padding:26px 20px}
 .feats,.weapons,.grid3,.grid3.shots{grid-template-columns:1fr}
 .two,.two.flip{grid-template-columns:1fr}
 .two.flip .text{order:1}.two.flip .shot{order:2}
 #hero{padding:100px 0 70px}
 #hero h1{font-size:clamp(64px,22vw,110px)}
 #top{padding:12px 14px}
 #top .brand{font-size:18px}
 table{font-size:12px}
}
/* ---- Boot card (2026-09-10): the first load and the cut into a mission wear the same HUD-style card.
   Corner brackets all round, a rail that sweeps until the data is in, and three status lines that take turns. ---- */
#pageLoad{position:fixed;inset:0;z-index:40;display:flex;align-items:center;justify-content:center;background:#0b1214;color:#f0ede2;transition:opacity .5s}
#pageLoad.done{opacity:0;pointer-events:none}


.boot-card{position:relative;width:min(340px,82vw);padding:26px 28px 24px;display:flex;flex-direction:column;gap:12px}
.boot-card>i{position:absolute;width:14px;height:14px;border:1px solid rgba(230,235,221,.55)}
.boot-card>i.c1{left:0;top:0;border-right:0;border-bottom:0}.boot-card>i.c2{right:0;top:0;border-left:0;border-bottom:0}.boot-card>i.c3{left:0;bottom:0;border-right:0;border-top:0}.boot-card>i.c4{right:0;bottom:0;border-left:0;border-top:0}
.boot-eyebrow{font-size:9px;font-weight:700;letter-spacing:.2em;color:#ffa475}
.boot-mark{font-family:Impact,"Arial Narrow","Helvetica Neue",sans-serif;font-weight:900;font-size:40px;line-height:1;letter-spacing:-.02em;color:#f0ede2}
.boot-mark em{font-style:normal;color:#ed713d}
/* Wide logo (img/zone-logo_2.svg) on the loading card: pure white, orange dot, an outline that keeps circling while we wait. */
.boot-mark{display:block;padding:2px 0}.boot-logo{display:block;width:100%;height:auto;overflow:visible}.boot-logo path{fill:#fff;stroke:#fff;stroke-width:.6;stroke-opacity:0;stroke-dasharray:14 320;animation:bootWire 2.2s linear infinite}.boot-logo path.dot{fill:#ed713d;stroke:#ed713d}
@keyframes bootWire{0%{stroke-dashoffset:0;stroke-opacity:.9}100%{stroke-dashoffset:-334;stroke-opacity:.9}}
@media(prefers-reduced-motion:reduce){.boot-logo path{animation:none}}
/* Hero and header logos (img/zone-logo_2.svg), injected by about.js; the text stays for search engines. Same wire-draw entrance as the game's title. */
.has-logo .title-text{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
#heroLogo.has-logo{position:relative;line-height:0}
.hero-logo{display:block;width:min(100%,820px);height:auto;overflow:visible;margin:4px 0 2px}
.hero-logo path,.brand-logo path{fill:#fff;stroke:#fff;stroke-width:.35;stroke-linejoin:round;stroke-linecap:round;fill-opacity:1;stroke-opacity:0;paint-order:stroke}
.hero-logo path.dot,.brand-logo path.dot{fill:var(--accent);stroke:var(--accent)}
/* the hero logo stays invisible until its entrance starts (it used to show solid for the 0.2 s while the loader faded, then redraw) */
#heroLogo.has-logo:not(.logo-in) .hero-logo path{fill-opacity:0;stroke-opacity:0}
#brandLogo.has-logo{display:inline-flex;align-items:center;position:relative}.brand-logo{display:block;height:19px;width:auto}
.logo-in .hero-logo path{stroke-dasharray:var(--len);stroke-dashoffset:var(--len);fill-opacity:0;stroke-opacity:1;animation:logoWire .8s cubic-bezier(.35,.6,.2,1) both,logoSolid .5s ease-out both;animation-delay:calc(.1s + var(--i)*.055s),calc(.78s + var(--i)*.055s)}
@keyframes logoWire{0%{stroke-dashoffset:var(--len);filter:drop-shadow(0 0 3px rgba(190,240,255,.85))}70%{filter:drop-shadow(0 0 3px rgba(190,240,255,.85))}100%{stroke-dashoffset:0;filter:drop-shadow(0 0 1px rgba(190,240,255,.5))}}
@keyframes logoSolid{0%{fill-opacity:0;stroke-opacity:1}45%{fill-opacity:1;stroke-opacity:1;filter:brightness(1.9) drop-shadow(0 0 6px rgba(255,255,255,.6))}100%{fill-opacity:1;stroke-opacity:0;filter:none}}
@media(max-width:700px){.brand-logo{height:16px}}
@media(prefers-reduced-motion:reduce){.logo-in .hero-logo path{animation:logoSolid .5s ease-out both;animation-delay:0s;stroke-dasharray:none;stroke-dashoffset:0}}
.boot-rail{position:relative;height:2px;background:rgba(230,235,221,.14);overflow:hidden;margin-top:4px}
.boot-rail i{position:absolute;left:0;top:0;height:100%;width:38%;background:#ed713d;animation:bootRail 1.4s cubic-bezier(.4,0,.2,1) infinite}
@keyframes bootRail{from{transform:translateX(-110%)}to{transform:translateX(280%)}}
#boot.done .boot-rail i,#pageLoad.done .boot-rail i{animation:none;width:100%;transition:width .3s}
.boot-status{position:relative;height:16px;font-size:10px;letter-spacing:.16em;color:#a8afaa}
.boot-status span{position:absolute;left:0;top:0;white-space:nowrap;opacity:0;animation:bootLine 3.6s ease-in-out infinite}
.boot-status span:nth-child(2){animation-delay:1.2s}.boot-status span:nth-child(3){animation-delay:2.4s}
@keyframes bootLine{0%{opacity:0;transform:translateY(4px)}8%{opacity:1;transform:none}30%{opacity:1}36%{opacity:0;transform:translateY(-3px)}100%{opacity:0}}
@media(prefers-reduced-motion:reduce){.boot-rail i{animation:none;width:60%}.boot-status span{animation:none}.boot-status span:first-child{opacity:1}}