:root{--light:rgb(235,236,208);--dark:rgb(115,149,82);--navy:#12355b}*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,Arial;background:#eef3f8;color:#10243a}header{height:64px;background:#102c49;color:#fff;display:flex;align-items:center;gap:20px;padding:10px 18px;position:sticky;top:0;z-index:10}.brand{color:#fff;text-decoration:none;font-size:22px}.brand i{color:#6fc0ff}.brand small{font-size:12px;opacity:.75}header nav{display:flex;gap:14px;margin-right:auto}header nav a{color:#fff;text-decoration:none;font-size:13px}#userBar{display:flex;align-items:center;gap:8px;font-size:12px}#userBar img{width:32px;height:32px;border-radius:50%}.card{background:#fff;border-radius:16px;padding:24px;box-shadow:0 8px 30px #1232}.auth{max-width:620px;margin:8vh auto}main{max-width:1500px;margin:auto;padding:16px}.practice-head{display:flex;justify-content:space-between;align-items:center}.progress-card{background:#fff;padding:12px 18px;border-radius:12px;display:grid;grid-template-columns:auto auto;gap:0 8px;align-items:end}.progress-card strong{font-size:30px}.progress-card small{grid-column:1/-1;color:#60758a}.toolbar{display:flex;gap:10px;align-items:end;flex-wrap:wrap;background:#fff;padding:12px;border-radius:12px;margin-bottom:12px}.toolbar label{display:grid;gap:4px;font-weight:800}.toolbar select,.toolbar input,.toolbar button,.actions button{padding:9px 11px;border:1px solid #9fb5c9;border-radius:8px;background:#fff}.primary{background:#1267b2!important;color:#fff!important;border-color:#1267b2!important;font-weight:800}.practice-layout{display:grid;grid-template-columns:270px minmax(520px,1fr) 280px;gap:12px}.list-panel,.board-panel,.help-panel{background:#fff;border-radius:14px;padding:12px;min-width:0}.game-list{height:calc(100vh - 205px);overflow:auto;scroll-behavior:smooth;display:grid;align-content:start;gap:5px}.game-item{display:grid;grid-template-columns:auto 1fr auto;gap:7px;text-align:left;border:1px solid #dce5ef;background:#fff;padding:7px;border-radius:8px;cursor:pointer}.game-item.active{border-color:#1769aa;background:#eaf4ff}.game-item.done{background:#eef9f2}.game-item small{color:#60758a}.num{font-weight:900;color:#1769aa}.board-panel{display:flex;flex-direction:column;align-items:center}.meta{width:min(72vh,760px)}.meta span{display:inline-block;background:#eef5fb;padding:3px 7px;border-radius:999px;font-size:11px;margin-left:8px}.meta p{font-size:12px;color:#60758a}.players{width:min(72vh,760px);display:flex;justify-content:space-between;font-weight:800;padding:6px}.board{width:min(72vh,760px);aspect-ratio:1/1;display:grid;grid-template-columns:repeat(8,minmax(0,1fr));grid-template-rows:repeat(8,minmax(0,1fr));border:3px solid #273c50;box-shadow:0 8px 24px #1234;overflow:hidden;line-height:0}.sq{min-width:0;min-height:0;aspect-ratio:1/1;overflow:hidden}.sq{position:relative;display:flex;align-items:center;justify-content:center;min-width:0;min-height:0;aspect-ratio:1/1;overflow:hidden;line-height:normal}.sq.light{background:var(--light)}.sq.dark{background:var(--dark)}.sq img{display:block;width:88%;height:88%;max-width:88%;max-height:88%;object-fit:contain;pointer-events:none;flex:none}.sq.sel{box-shadow:inset 0 0 0 5px #f4c542}.sq.legal:after{content:"";width:20%;height:20%;background:#183a5688;border-radius:50%;position:absolute}.coord{position:absolute;font-size:9px;font-weight:900}.coord.file{right:2px;bottom:2px}.coord.rank{left:2px;top:2px}.sq.light .coord{color:#58794a}.sq.dark .coord{color:#e6f0d8}#status{min-height:30px;padding:9px;font-weight:800}.actions{display:flex;gap:8px;flex-wrap:wrap}.help-panel p{font-size:13px;line-height:1.45}.help-panel{max-height:calc(100vh - 130px);overflow:auto}@media(max-width:1000px){.practice-layout{grid-template-columns:1fr}.game-list{height:260px}.help-panel{max-height:none}.board,.players,.meta{width:min(94vw,680px)}}@media(max-width:600px){main{padding:7px}.practice-head{display:block}.toolbar{display:grid;grid-template-columns:1fr 1fr}.practice-layout{display:block}.list-panel,.board-panel,.help-panel{margin-bottom:8px}header nav{display:none}}

.finish-choice{display:inline-block;margin-left:6px;color:#1267b2;font-weight:800}

.task-goal{margin:10px 0 8px;padding:11px 14px;border-radius:10px;font-weight:900;letter-spacing:.06em;text-align:center;font-size:1.05rem;border:2px solid currentColor}.task-goal.win{color:#166534;background:#dcfce7}.task-goal.draw{color:#92400e;background:#fef3c7}.goal-mini{display:inline-block;margin-top:5px;padding:2px 7px;border-radius:999px;font-style:normal;font-size:.68rem;font-weight:900;letter-spacing:.04em}.goal-mini.win{color:#166534;background:#dcfce7}.goal-mini.draw{color:#92400e;background:#fef3c7}