:root{--bg:#232323;--bg-sub:#2c2c2c;--bg-hover:#333;--text:#d1d0c5;--text-sub:#646669;--text-dim:#4a4a4a;--accent:#e2b714;--error:#ca4754;--correct:#7ec985;--font:"Inter", -apple-system, BlinkMacSystemFont, sans-serif;--font-jp:"Noto Sans JP", "Hiragino Sans", sans-serif;--mono:"IBM Plex Mono", "Consolas", monospace;--radius:8px;--transition:.15s ease}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html,body{background:var(--bg);height:100%;color:var(--text);font-family:var(--font);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-size:15px;line-height:1.6}.sr-only{clip:rect(0,0,0,0);border:0;width:1px;height:1px;position:absolute;overflow:hidden}.hidden{display:none!important}#app{flex-direction:column;min-height:100vh;display:flex}.nav{justify-content:space-between;align-items:center;padding:16px 32px;display:flex}.nav-logo{color:var(--accent);letter-spacing:-.5px;-webkit-user-select:none;user-select:none;font-size:24px;font-weight:700}.nav-right{gap:8px;display:flex}.nav-link{color:var(--text-sub);font-family:var(--font);border-radius:var(--radius);cursor:pointer;transition:color var(--transition), background var(--transition);background:0 0;border:none;padding:6px 12px;font-size:13px;font-weight:500}.nav-link:hover{color:var(--text);background:var(--bg-sub)}.btn-primary{background:var(--accent);width:100%;max-width:280px;color:var(--bg);border-radius:var(--radius);font-family:var(--font);cursor:pointer;transition:opacity var(--transition), transform var(--transition);border:none;margin:0 auto;padding:14px 24px;font-size:15px;font-weight:600;display:block}.btn-primary:hover{opacity:.9;transform:translateY(-1px)}.btn-ghost{border:1px solid var(--text-dim);color:var(--text-sub);font-family:var(--font);border-radius:var(--radius);cursor:pointer;transition:color var(--transition), border-color var(--transition);background:0 0;padding:8px 16px;font-size:13px;font-weight:500}.btn-ghost:hover{color:var(--text);border-color:var(--text-sub)}.menu{flex:1;justify-content:center;align-items:center;padding:40px 24px;display:flex}.menu-inner{width:100%;max-width:560px}.menu-head{margin-bottom:40px}.menu-head h2{letter-spacing:-1px;color:var(--accent);margin-bottom:4px;font-size:40px;font-weight:700}.menu-score{color:var(--text-dim);text-transform:uppercase;letter-spacing:1px;margin-bottom:16px;font-size:14px}.menu-head .sub{color:var(--text-sub);font-size:14px;line-height:1.5}.char-groups{grid-template-columns:repeat(2,1fr);gap:16px;margin-bottom:24px;display:grid}.char-group{border:1px solid var(--text-dim);border-radius:var(--radius);padding:16px}.char-group legend{text-transform:lowercase;color:var(--text-sub);letter-spacing:.5px;padding:0 6px;font-size:12px;font-weight:600}.opt{cursor:pointer;color:var(--text);-webkit-user-select:none;user-select:none;align-items:center;gap:8px;padding:6px 0;font-size:14px;display:flex}.opt input[type=checkbox]{appearance:none;border:2px solid var(--text-dim);cursor:pointer;width:16px;height:16px;transition:all var(--transition);background:0 0;border-radius:3px;flex-shrink:0;position:relative}.opt input[type=checkbox]:checked{background:var(--accent);border-color:var(--accent)}.opt input[type=checkbox]:checked:after{content:"";border:solid var(--bg);border-width:0 2px 2px 0;width:4px;height:8px;position:absolute;top:1px;left:4px;transform:rotate(45deg)}.opt span{flex:1}.opt small{font-family:var(--mono);color:var(--text-dim);font-size:11px}.settings-row{background:var(--bg-sub);border-radius:var(--radius);justify-content:space-between;align-items:center;gap:16px;margin-bottom:32px;padding:12px 16px;display:flex}.setting{color:var(--text-sub);cursor:pointer;align-items:center;gap:10px;font-size:13px;display:flex}.setting select{background:var(--bg);border:1px solid var(--text-dim);color:var(--text);font-family:var(--font);cursor:pointer;border-radius:4px;outline:none;padding:4px 8px;font-size:13px}.setting select:focus{border-color:var(--accent)}.hint-note{color:var(--text-dim);font-size:12px;font-style:italic}.hud{flex-direction:column;flex:1;gap:12px;padding:12px 24px;display:flex}.hud-row{flex-wrap:wrap;align-items:center;gap:24px;display:flex}.hud-stat{align-items:center;gap:6px;display:flex}.hud-label{color:var(--text-dim);text-transform:lowercase;font-size:11px;font-weight:600}.hud-value{font-size:16px;font-weight:600}.hud-value.accent{color:var(--accent)}.hud-value.dim{color:var(--text-sub)}.hp-bar{gap:4px;display:flex}.hp-pip{background:var(--text-dim);width:20px;height:8px;transition:background var(--transition);border-radius:2px}.hp-pip.full{background:var(--correct)}.hp-pip.low{background:var(--error)}.mono{font-family:var(--mono)}.canvas-frame{border-radius:var(--radius);background:#1a1a1a;flex:1;min-height:460px;position:relative;overflow:hidden}#game-canvas{width:100%;height:100%;display:block}.input-dock{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:1px solid var(--text-dim);background:#232323f2;border-radius:999px;align-items:center;gap:8px;width:90%;max-width:480px;padding:6px 6px 6px 20px;display:flex;position:absolute;bottom:20px;left:50%;transform:translate(-50%)}.type-field{color:var(--text);font-family:var(--mono);background:0 0;border:none;outline:none;flex:1;font-size:16px;font-weight:500}.type-field::placeholder{color:var(--text-dim)}.input-dock .btn-ghost{border-radius:999px;padding:6px 14px;font-size:12px}.overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:100;background:#191919eb;justify-content:center;align-items:center;padding:24px;display:flex;position:fixed;inset:0}.modal{background:var(--bg-sub);border:1px solid var(--text-dim);border-radius:12px;width:100%;max-width:480px;max-height:90vh;padding:32px;overflow-y:auto}.modal-wide{flex-direction:column;max-width:720px;display:flex}.modal-title{letter-spacing:-.5px;margin-bottom:4px;font-size:28px;font-weight:700}.modal-top-row{justify-content:space-between;align-items:center;margin-bottom:16px;display:flex}.grade-wrap{text-align:center;margin:16px 0 24px}.grade{color:var(--accent);font-size:52px;font-weight:700;line-height:1;display:inline-block}.result-grid{background:var(--text-dim);border-radius:var(--radius);grid-template-columns:1fr 1fr;gap:1px;margin-bottom:24px;display:grid;overflow:hidden}.r{background:var(--bg);justify-content:space-between;align-items:center;padding:12px 16px;display:flex}.rl{color:var(--text-sub);font-size:12px}.rv{font-size:18px;font-weight:600}.missed-section{margin-bottom:24px}.missed-section h3{color:var(--error);margin-bottom:10px;font-size:13px;font-weight:600}.missed-list{flex-wrap:wrap;gap:6px;display:flex}.missed-item{background:var(--bg);border:1px solid var(--text-dim);text-align:center;border-radius:6px;min-width:64px;padding:6px 10px}.missed-char{font-family:var(--font-jp);color:var(--text);font-size:20px;font-weight:700;display:block}.missed-reading{font-family:var(--mono);color:var(--accent);font-size:11px}.modal-actions{justify-content:center;gap:10px;display:flex}.modal-actions .btn-primary{width:auto;max-width:none;padding:10px 28px}.search-field{background:var(--bg);border:1px solid var(--text-dim);width:100%;color:var(--text);font-family:var(--font);border-radius:var(--radius);outline:none;margin-bottom:16px;padding:10px 14px;font-size:14px}.search-field:focus{border-color:var(--accent)}.tabs{gap:4px;margin-bottom:16px;display:flex}.tab{color:var(--text-sub);font-family:var(--font);cursor:pointer;transition:color var(--transition), background var(--transition);background:0 0;border:none;border-radius:999px;padding:6px 14px;font-size:13px;font-weight:600}.tab.active{background:var(--bg);color:var(--accent)}.tab:hover:not(.active){color:var(--text)}.tab-body{flex:1;overflow-y:auto}.tab-pane{display:none}.tab-pane.active{display:block}.ref-grid{grid-template-columns:repeat(auto-fill,minmax(80px,1fr));gap:6px;display:grid}.ref-card{background:var(--bg);text-align:center;transition:background var(--transition);border-radius:6px;padding:8px 4px}.ref-card:hover{background:var(--bg-hover)}.ref-jp{font-family:var(--font-jp);color:var(--text);font-size:22px;font-weight:700;line-height:1.3}.ref-rom{font-family:var(--mono);color:var(--text-sub);font-size:11px}.ref-meaning{color:var(--text-dim);font-size:10px}.footer{text-align:center;color:var(--text-dim);padding:16px;font-size:12px}@media (width<=640px){.char-groups{grid-template-columns:1fr}.settings-row{flex-direction:column;align-items:flex-start}.hud-row{gap:12px}.nav{padding:12px 16px}.menu-inner{padding:0 8px}.menu-head h2{font-size:32px}}