/* v51 mobile fixes + MUSIC section */
.mobile-shortcut-button,.mobile-shortcut-panel,.mobile-shortcut-backdrop{display:none}
.music-v51{position:relative;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:radial-gradient(circle at 78% 20%,rgba(65,147,213,.18),transparent 34%),linear-gradient(145deg,#06111c,#091d2f);padding:clamp(86px,9vw,126px) 24px;color:#eaf7ff;overflow:hidden}
.music-v51:before{content:"";position:absolute;inset:0;pointer-events:none;opacity:.18;background-image:radial-gradient(#8fd0ff .8px,transparent .8px);background-size:10px 10px;mask-image:linear-gradient(90deg,transparent,#000 50%,transparent)}
.music-v51-inner{position:relative;z-index:1;width:min(1180px,100%);margin:auto}.music-v51-head{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:end;margin-bottom:46px}.music-v51-head h2{font-size:clamp(36px,5vw,62px);font-weight:400;letter-spacing:.08em;margin:10px 0}.music-v51-head p{color:#9bb6c9;line-height:2;font-size:13px}.music-v51-grid{display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);gap:28px}.music-v51-player,.music-v51-lyrics{border:1px solid rgba(164,218,255,.18);background:rgba(4,15,26,.78);backdrop-filter:blur(14px);padding:30px;box-shadow:0 28px 80px rgba(0,0,0,.26)}.music-v51-label{color:#75c6fb;letter-spacing:.26em;font:700 9px/1 Arial,sans-serif}.music-v51-title{font-size:clamp(28px,3vw,42px);font-weight:400;letter-spacing:.08em;margin:14px 0 4px}.music-v51-artist{color:#9db9cb;letter-spacing:.15em;font:10px/1.6 Arial,sans-serif;margin:0 0 28px}.music-v51-art{aspect-ratio:16/9;overflow:hidden;border:1px solid rgba(179,222,252,.2);margin-bottom:24px}.music-v51-art img{width:100%;height:100%;object-fit:cover;display:block}.music-v51-controls{display:grid;grid-template-columns:54px 1fr auto;gap:14px;align-items:center}.music-v51-play{width:54px;height:54px;border-radius:50%;border:1px solid #9edaff88;background:#2d89c94a;color:#fff;cursor:pointer;font-size:18px}.music-v51-progress{height:3px;background:#8ecbf024;position:relative;overflow:hidden}.music-v51-progress i{display:block;width:0;height:100%;background:#72c7ff}.music-v51-time{color:#8eabba;font:9px/1 Arial,sans-serif}.music-v51-note{margin:18px 0 0;color:#7f9aae;font-size:11px;line-height:1.8}.music-v51-links{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}.music-v51-links a{border:1px solid #9dd7fb44;padding:11px 14px;color:#dff4ff;font:700 9px/1 Arial,sans-serif;letter-spacing:.1em}.music-v51-lyrics h3{font-size:30px;font-weight:400;letter-spacing:.1em;margin:14px 0 28px}.music-v51-lyrictext{white-space:pre-line;color:#d8e8f3;font-size:14px;line-height:2.2;letter-spacing:.06em}.music-v51-source-note{margin-top:24px;padding-top:18px;border-top:1px solid rgba(163,211,243,.15);color:#7695a8;font-size:10px;line-height:1.8}
@media (max-width:820px){
  main{overflow:visible!important}.site-header{z-index:120!important}.site-header .header-read{display:none!important}.site-header .language-switch{margin-right:48px}
  .mobile-shortcut-button{display:grid;position:fixed;z-index:150;top:14px;right:14px;width:40px;height:40px;place-items:center;border:1px solid rgba(157,214,251,.38);background:rgba(4,15,26,.9);backdrop-filter:blur(16px);color:#eef9ff;cursor:pointer}
  .mobile-shortcut-button span,.mobile-shortcut-button:before,.mobile-shortcut-button:after{content:"";display:block;width:17px;height:1px;background:currentColor;transition:.22s}.mobile-shortcut-button span{margin:4px 0}
  .mobile-shortcut-button.is-open span{opacity:0}.mobile-shortcut-button.is-open:before{transform:translateY(5px) rotate(45deg)}.mobile-shortcut-button.is-open:after{transform:translateY(-5px) rotate(-45deg)}
  .mobile-shortcut-backdrop{display:block;position:fixed;z-index:138;inset:0;background:rgba(0,7,13,.66);opacity:0;pointer-events:none;transition:.25s}.mobile-shortcut-backdrop.is-open{opacity:1;pointer-events:auto}
  .mobile-shortcut-panel{display:block;position:fixed;z-index:145;top:0;right:0;width:min(86vw,360px);height:100dvh;background:linear-gradient(180deg,#07121f,#081a2a);border-left:1px solid rgba(163,216,250,.2);padding:86px 26px 30px;transform:translateX(100%);transition:.28s cubic-bezier(.22,1,.36,1);overflow:auto}.mobile-shortcut-panel.is-open{transform:none}.mobile-shortcut-panel small{color:#6dbce9;letter-spacing:.26em;font:700 9px Arial,sans-serif}.mobile-shortcut-panel h2{font-size:26px;font-weight:400;margin:10px 0 26px}.mobile-shortcut-panel nav{display:grid}.mobile-shortcut-panel a{padding:16px 0;border-bottom:1px solid rgba(159,211,246,.12);color:#e6f4fd;letter-spacing:.08em;font-size:14px}.mobile-shortcut-panel a span{display:block;color:#6d91a8;font:8px/1.6 Arial,sans-serif;letter-spacing:.18em;margin-top:4px}
  .hero{min-height:900px!important;background:#06111c}.hero-image{background-image:url('/projects/sekai-no-hanbun-wa-ao/hero-mobile.webp')!important;background-size:cover!important;background-position:center top!important;background-repeat:no-repeat!important;animation:none!important}.hero-vignette{background:linear-gradient(180deg,rgba(2,7,13,.08) 0%,rgba(2,7,13,.08) 38%,rgba(2,7,13,.66) 57%,rgba(2,7,13,.98) 82%)!important}.hero-content{padding-bottom:70px!important}.hero-content .eyebrow{margin-bottom:16px}.hero h1{font-size:clamp(42px,12vw,60px)!important}.hero-copy{margin:22px 0 22px!important}
  .reader-section{overflow:visible!important;padding-left:0!important;padding-right:0!important}.reader-heading{width:calc(100% - 36px)!important}.reader-shell{display:block!important;width:100%!important;max-width:none!important;margin:0!important}.chapter-nav{position:relative!important;top:auto!important;width:100%!important;max-height:none!important;border-left:0!important;border-right:0!important;overflow:visible!important}.chapter-nav>div{display:flex!important;overflow-x:auto!important;overscroll-behavior-x:contain;scroll-snap-type:x proximity;padding-bottom:4px}.chapter-nav button{min-width:180px!important;scroll-snap-align:start}.novel-panel{width:100%!important;min-width:0!important;border-left:0!important;border-right:0!important;box-shadow:none!important}.reader-toolbar{position:sticky;top:68px;z-index:8;background:#071522f2!important}.novel-body{max-width:100%!important;width:100%!important;box-sizing:border-box!important;overflow-wrap:anywhere;word-break:normal}.novel-body p{max-width:100%!important}.novel-panel figure{max-width:100%!important}.reader-pager{min-height:82px!important}.reader-pager p{display:none}.reader-pager button{flex:1;justify-content:center!important}
  .music-v51{padding:82px 18px}.music-v51-head,.music-v51-grid{grid-template-columns:1fr}.music-v51-head{gap:6px}.music-v51-player,.music-v51-lyrics{padding:22px}.music-v51-controls{grid-template-columns:48px 1fr auto}.music-v51-play{width:48px;height:48px}
}
@media (max-width:540px){.site-header .language-switch{display:none!important}.hero{min-height:860px!important}.hero-content{width:calc(100% - 36px)!important}.novel-head{padding-left:18px!important;padding-right:18px!important}.novel-body{padding-left:20px!important;padding-right:20px!important;font-size:16px!important;line-height:2.15!important}.music-v51-lyrictext{font-size:13px;line-height:2.05}.music-v51-title{font-size:29px}}

/* v54: jacket fit, reader navigation escape, lyrics popup, mobile scroll fixes */
html,body{min-height:100%;}
section[id]{scroll-margin-top:90px}
.music-v51-grid{align-items:start}.music-v51-art{aspect-ratio:1/1;background:#06111c;display:grid;place-items:center}.music-v51-art img{object-fit:contain!important;background:#06111c}.music-v54-side{border:1px solid rgba(164,218,255,.18);background:linear-gradient(145deg,rgba(9,31,50,.88),rgba(4,15,26,.88));padding:30px;min-height:100%;display:flex;flex-direction:column;justify-content:center}.music-v54-side h3{font-size:clamp(25px,3vw,38px);font-weight:400;letter-spacing:.08em;margin:14px 0 18px}.music-v54-side>p{color:#9bb6c9;font-size:13px;line-height:2}.music-v54-lyrics-button,.music-v54-biglyrics{appearance:none;border:1px solid #9dd7fb55;background:#1e7eb43d;color:#eaf7ff;cursor:pointer;font:700 10px/1 Arial,sans-serif;letter-spacing:.12em;padding:12px 16px}.music-v54-biglyrics{display:flex;justify-content:space-between;align-items:center;width:100%;margin-top:22px;padding:17px 18px;text-align:left}.music-v54-biglyrics:hover,.music-v54-lyrics-button:hover{background:#2a90ca5c;border-color:#bce5ff99}.music-v51-progress{cursor:pointer}
.lyrics-modal-v54{position:fixed;z-index:10000;inset:0;display:none}.lyrics-modal-v54.is-open{display:block}.lyrics-modal-v54-backdrop{position:absolute;inset:0;background:rgba(0,6,12,.82);backdrop-filter:blur(10px)}.lyrics-modal-v54-panel{position:absolute;inset:5vh max(18px,calc((100vw - 820px)/2));display:flex;flex-direction:column;background:linear-gradient(180deg,#091b2b,#06111c);border:1px solid rgba(153,215,255,.32);box-shadow:0 40px 120px rgba(0,0,0,.58);color:#eaf7ff;overflow:hidden}.lyrics-modal-v54-head{flex:none;display:flex;justify-content:space-between;gap:24px;align-items:flex-start;padding:28px 30px 24px;border-bottom:1px solid rgba(157,214,251,.16)}.lyrics-modal-v54-head small{color:#71c0f0;letter-spacing:.24em;font:700 9px Arial,sans-serif}.lyrics-modal-v54-head h2{font-size:clamp(27px,4vw,42px);font-weight:400;margin:9px 0 6px;letter-spacing:.09em}.lyrics-modal-v54-head p{margin:0;color:#91aabd;font:10px Arial,sans-serif;letter-spacing:.16em}.lyrics-modal-v54-close{width:42px;height:42px;flex:none;border:1px solid rgba(157,214,251,.28);background:transparent;color:#fff;font-size:27px;line-height:1;cursor:pointer}.lyrics-modal-v54-body{overflow:auto;padding:34px 30px 60px;overscroll-behavior:contain}.lyrics-modal-v54-body pre{white-space:pre-wrap;margin:0;color:#dcecf6;font:400 15px/2.2 "Hiragino Mincho ProN","Yu Mincho",YuMincho,serif;letter-spacing:.06em}.ui-scroll-locked{overflow:hidden!important;overscroll-behavior:none!important}
.reader-mobile-nav{display:none}
@media(max-width:820px){
  html:not(.ui-scroll-locked),body:not(.ui-scroll-locked){overflow-x:hidden!important;overflow-y:auto!important;height:auto!important;position:static!important}
  main{overflow:visible!important;clip:auto!important}.reader-section{contain:none!important;overflow:visible!important}.reader-shell{overflow:visible!important}.novel-panel{overflow:visible!important;max-height:none!important;height:auto!important}.reader-toolbar{position:relative!important;top:auto!important}.chapter-nav{position:relative!important;max-height:none!important;overflow:visible!important}.chapter-nav>div{overflow-x:auto!important;overflow-y:hidden!important}
  .reader-mobile-nav{display:flex;position:relative;z-index:9;width:100%;overflow-x:auto;gap:0;border-block:1px solid rgba(145,204,243,.18);background:#071522;padding:0 10px;margin:0 0 18px;scrollbar-width:none}.reader-mobile-nav::-webkit-scrollbar{display:none}.reader-mobile-nav a{flex:none;padding:14px 13px;color:#9fc6df;font:700 9px/1 Arial,sans-serif;letter-spacing:.14em;border-right:1px solid rgba(145,204,243,.12)}
  .mobile-shortcut-button{z-index:10050!important}.mobile-shortcut-panel{z-index:10040!important}.mobile-shortcut-backdrop{z-index:10030!important}
  .music-v51-art{width:min(100%,520px);margin-inline:auto}.music-v54-side{padding:24px}.lyrics-modal-v54-panel{inset:12px}.lyrics-modal-v54-head{padding:21px 18px 18px}.lyrics-modal-v54-body{padding:26px 20px 50px}.lyrics-modal-v54-body pre{font-size:14px;line-height:2.05}
}
@media(max-width:540px){.music-v51-art{aspect-ratio:1/1}.lyrics-modal-v54-panel{inset:0;border:0}.lyrics-modal-v54-head{padding-top:max(18px,env(safe-area-inset-top))}.lyrics-modal-v54-body{padding-bottom:max(50px,env(safe-area-inset-bottom))}}