:root{--bg: #05080f;--bg-elevated: #0c1220;--panel: #0f1628;--text: #f2f4f8;--muted: #9aa3b2;--accent: #ff8a68;--gold: #ffd700;--ok: #44dd88;--err: #ff4466;--border: rgba(255, 255, 255, .08);--shadow: 0 12px 40px rgba(0, 0, 0, .45);--radius: 14px;--radius-sm: 10px;--font: "Segoe UI", "Apple SD Gothic Neo", "Malgun Gothic", system-ui, sans-serif;--game-ratio: 720 / 1280;--header-h: 52px;--shell-pad-x: 16px;--shell-pad-y: 20px;--shell-max: 100%;--game-max-w: min(100%, 720px);--panel-pad: 18px;--h1: 1.35rem;--h2: 1.05rem;--body: .95rem}@media(min-width:810px){:root{--shell-pad-x: 28px;--shell-pad-y: 28px;--shell-max: 960px;--game-max-w: min(520px, 100%);--panel-pad: 22px;--h1: 1.55rem;--h2: 1.15rem;--body: 1rem}}@media(min-width:1200px){:root{--shell-pad-x: 32px;--shell-pad-y: 36px;--shell-max: 1280px;--game-max-w: 100%;--game-stage-h: min(88dvh, 900px);--panel-pad: 24px;--h1: 1.75rem;--h2: 1.25rem}}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;min-height:100vh;min-height:100dvh;font-family:var(--font);font-size:var(--body);line-height:1.55;background:radial-gradient(ellipse 120% 80% at 50% -20%,#1a2240 0%,var(--bg) 52%);color:var(--text)}img,svg{max-width:100%;height:auto}.wrap,.app-shell{width:100%;max-width:var(--shell-max);margin:0 auto;padding:var(--shell-pad-y) var(--shell-pad-x) calc(var(--shell-pad-y) + env(safe-area-inset-bottom,0px));padding-left:max(var(--shell-pad-x),env(safe-area-inset-left,0px));padding-right:max(var(--shell-pad-x),env(safe-area-inset-right,0px))}.site-header,header{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px 14px;min-height:var(--header-h);margin-bottom:clamp(20px,4vw,32px)}.logo{font-size:clamp(1.15rem,3.5vw,1.4rem);font-weight:700;color:var(--gold);text-decoration:none;letter-spacing:-.02em}.header-actions{display:flex;flex-wrap:wrap;align-items:center;gap:8px}.panel{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:var(--panel-pad);margin-bottom:clamp(14px,2.5vw,20px);box-shadow:var(--shadow)}.panel--flat{box-shadow:none}h1{font-size:var(--h1);line-height:1.25;margin:0 0 10px;letter-spacing:-.02em}h2{font-size:var(--h2);line-height:1.3;margin:0 0 12px;color:var(--gold)}p{margin:0 0 12px;color:var(--muted)}p:last-child{margin-bottom:0}strong{color:var(--text);font-weight:600}label{display:block;font-size:.85rem;color:var(--muted);margin-bottom:6px}input,textarea,select{width:100%;max-width:100%;padding:12px 14px;border-radius:var(--radius-sm);border:1px solid var(--border);background:#060a14;color:var(--text);margin-bottom:14px;font-size:16px}input:focus,textarea:focus,select:focus{outline:2px solid rgba(255,138,104,.45);outline-offset:1px}button,.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:11px 18px;border-radius:var(--radius-sm);border:1px solid var(--accent);background:#ff8a681f;color:var(--text);font-weight:600;font-size:.92rem;cursor:pointer;text-decoration:none;white-space:nowrap;transition:background .15s,border-color .15s,transform .1s}button:hover,.btn:hover{background:#ff8a6838}button:active,.btn:active{transform:scale(.98)}button.primary,.btn.primary{background:var(--accent);color:#1a0a06;border-color:transparent}button.primary:hover,.btn.primary:hover{filter:brightness(1.06)}button:disabled,.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.btn-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:8px}.btn-row .btn,.btn-row button{flex:1 1 auto;min-width:min(100%,140px)}@media(min-width:810px){.btn-row .btn,.btn-row button{flex:0 1 auto;min-width:0}}.msg{padding:12px 14px;border-radius:var(--radius-sm);margin:12px 0;font-size:.9rem}.msg.ok{background:#44dd881f;color:var(--ok)}.msg.err{background:#ff44661f;color:var(--err)}.deck-list{list-style:none;padding:0;margin:0}.deck-list li{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px 12px;padding:16px 0;border-bottom:1px solid var(--border)}.deck-list li:last-child{border-bottom:none}@media(min-width:810px){.deck-list--grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px 20px}.deck-list--grid li{border-bottom:none;padding:14px;background:#ffffff08;border-radius:var(--radius-sm);border:1px solid var(--border)}}@media(min-width:1200px){.deck-list--grid{grid-template-columns:repeat(2,1fr)}}.hint{font-size:.82rem;line-height:1.45;color:var(--muted)}body.page-play{background:radial-gradient(ellipse 100% 60% at 50% 0%,#141c32 0%,var(--bg) 50%)}.play-main{display:flex;flex-direction:column;gap:clamp(16px,3vw,28px);align-items:stretch}.play-info{width:100%}.play-info h1{margin-bottom:6px}.game-stage{width:fit-content;max-width:min(720px,calc(100vw - 32px));margin:0 auto;padding:0;background:transparent;border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;line-height:0}iframe.game{display:block;width:min(720px,calc(100vw - 32px));max-width:100%;aspect-ratio:720 / 1280;height:auto;min-height:280px;margin:0;border:none;border-radius:var(--radius);background:#000;vertical-align:top}@media(min-width:810px){.play-main{display:grid;grid-template-columns:minmax(0,1fr) auto;grid-template-rows:auto;align-items:start;justify-content:center;gap:24px 32px}.game-stage{justify-self:end;position:sticky;top:var(--shell-pad-y)}}@media(min-width:1200px){body.page-play .app-shell{max-width:none;width:100%;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}.play-main{display:flex;flex-direction:column;gap:16px;align-items:stretch;width:100%;max-width:none;min-height:calc(100dvh - 72px)}.play-info{flex:0 0 auto;width:100%;max-width:none;padding:14px var(--panel-pad);margin:0}.play-info h1{font-size:var(--h2);margin-bottom:4px}.play-info .hint{font-size:.88rem;margin:0}.game-stage{flex:1 1 auto;width:100%;min-width:min(100%,1200px);max-width:none;height:calc(100dvh - 160px);min-height:640px;margin:0;position:relative;top:auto;border-radius:var(--radius);box-shadow:var(--shadow)}iframe.game{width:100%;height:100%;min-width:min(100%,1200px);min-height:640px;aspect-ratio:unset;max-width:none;max-height:none}}.hero-panel{text-align:left}@media(min-width:810px){.hero-panel{padding:calc(var(--panel-pad) + 8px)}}@media(min-width:1200px){.home-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:20px;align-items:start}.home-grid .panel{margin-bottom:0}}.form-narrow{max-width:420px}@media(min-width:810px){.form-narrow{max-width:480px}}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}