.baduk-guide-open{display:block;width:100%;margin:12px 0 0;padding:12px;border:1px solid #679dc6;border-radius:12px;background:#21395f;color:#b7eeff;font:inherit;cursor:pointer}
#badukGuide{width:min(460px,calc(100vw - 24px));max-height:calc(100dvh - 24px);padding:0;border:1px solid #54729a;border-radius:20px;background:#142443;color:#edf4ff;font-family:'Jua',sans-serif;box-sizing:border-box;overflow:auto;overscroll-behavior:contain}
#badukGuide::backdrop{background:#030c21d9;backdrop-filter:blur(5px)}
.bg-header{position:sticky;top:0;background:#142443;z-index:3;display:flex;align-items:center;justify-content:space-between;padding:15px 16px;border-bottom:1px solid #33476b}.bg-header h2{font-size:1.2rem;margin:0;color:#ffda54}
#badukGuide button{font:inherit;cursor:pointer}#badukGuide button:focus-visible{outline:3px solid #7de3ff;outline-offset:2px}.bg-close{border:0;border-radius:8px;background:#324668;color:white;padding:8px 12px}
.bg-body{padding:12px 16px 18px}.bg-intro{font-size:.83rem;color:#bed0e6;margin:0 0 12px;line-height:1.5}.bg-topics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:6px}.bg-topics button{padding:9px 2px;border-radius:9px;border:1px solid #4f6488;background:#253958;color:#fff;font-size:.8rem!important}.bg-topics button[aria-pressed=true]{background:#ffda54;border-color:#ffda54;color:#18253d}
.bg-title{font-size:1.06rem;color:#b3f1ff;margin:14px 0 5px}.bg-explain{font: .85rem/1.6 'Jua',sans-serif;min-height:42px;margin:0 0 10px;color:#e4eafa}
.bg-board{position:relative;width:min(100%,310px);aspect-ratio:1;margin:auto;border-radius:12px;background:linear-gradient(125deg,#f3cc83,#daa04a);box-shadow:inset 0 0 0 5px #b77b35,0 6px 16px #0004;overflow:hidden}.bg-board svg{width:100%;height:100%;position:absolute;inset:0}.bg-stone{position:absolute;width:13%;height:13%;margin:-6.5%;border-radius:50%;box-shadow:1px 4px 4px #0005;animation:bg-place .35s ease-out}.bg-stone.black{background:radial-gradient(circle at 32% 24%,#666,#151515 50%,#000)}.bg-stone.white{background:radial-gradient(circle at 32% 24%,#fff,#f1f1ee 55%,#bcbfbf);box-shadow:inset 0 0 0 1px #bbb,1px 4px 4px #0005}.bg-stone.bg-remove{animation:bg-capture .55s ease-in forwards}.bg-stone.bg-new:after{content:'';position:absolute;inset:36%;border-radius:50%;background:#ff6464}
.bg-caption{margin:12px 0 8px;padding:10px 12px;border-radius:10px;background:#253a59;color:#ffe6a0;font-size:.9rem;line-height:1.55;min-height:44px}.bg-legend{font-size:.72rem;color:#b4c8e2;text-align:center;margin:8px 0}.bg-controls{display:flex;justify-content:center;gap:6px;flex-wrap:wrap}.bg-controls button{border:1px solid #577196;background:#2a4063;color:#fff;border-radius:8px;padding:9px 12px}.bg-controls button:disabled{opacity:.35;cursor:default}.bg-counter{text-align:center;font-size:.75rem;color:#aebfd8;margin:9px 0}.bg-footer{display:flex;justify-content:space-between;gap:8px;margin-top:12px}.bg-footer button{background:#ffda54;color:#16233e;border:0;border-radius:9px;padding:10px 14px}.bg-note{font-size:.8rem;line-height:1.6;color:#bfd1e5;margin:12px 0 0}
@keyframes bg-place{from{opacity:.2;transform:scale(1.5) translateY(-15%)}to{opacity:1;transform:none}}@keyframes bg-capture{to{opacity:0;transform:translateY(-25px) scale(.4)}}
@media(max-width:380px){.bg-body{padding:10px 12px}.bg-board{width:min(100%,270px)}.bg-topics button{font-size:.74rem!important}.bg-header{padding:12px}.bg-controls button{padding:8px 10px}}
@media(prefers-reduced-motion:reduce){.bg-stone,.bg-stone.bg-remove{animation-duration:.01ms}}