:root{--bg:#08111c;--bg-elev:#101b2c;--bg-elev-2:#162338;--line:#b4d2ff1f;--text:#e7eef8;--muted:#93a4bb;--accent:#3ee0b0;--accent-2:#7cc4ff;--gold:#f0c14b;--wrong:#ff6b85;--correct:#3ee0b0;--shadow:0 24px 60px #00000059;--sans:"DM Sans", "Segoe UI", sans-serif;--display:"Fraunces", Georgia, serif;--tile:1fr;color:var(--text);background:radial-gradient(1200px 600px at 10% -10%, #16324f 0%, var(--bg) 55%);font-family:var(--sans)}*,:before,:after{box-sizing:border-box}html,body,#root{min-height:100%}body{margin:0}.sound-menu{z-index:55;position:fixed;top:8px;left:auto;right:8px}.sound-menu-toggle{border:1px solid var(--line);color:var(--muted);background:#101b2cd1;border-radius:999px;padding:6px 10px;font-size:.78rem}.sound-menu-toggle:hover,.sound-menu-toggle[aria-expanded=true]{color:var(--text);border-color:#b4d2ff47}.sound-menu-panel{background:linear-gradient(180deg, var(--bg-elev), var(--bg-elev-2));border:1px solid var(--line);min-width:196px;box-shadow:var(--shadow);border-radius:14px;padding:12px 12px 10px;position:absolute;top:calc(100% + 8px);left:auto;right:0}.sound-menu-row{color:var(--text);justify-content:space-between;align-items:center;gap:12px;margin-bottom:8px;font-size:.9rem;display:flex}.sound-menu-row input{width:16px;height:16px;accent-color:var(--accent)}.sound-menu-mute{margin-top:4px;padding-left:0}.perf-hud{z-index:50;letter-spacing:.06em;color:var(--muted);opacity:.32;pointer-events:none;-webkit-user-select:none;user-select:none;font-variant-numeric:tabular-nums;margin:0;font-size:10px;line-height:1;position:fixed;top:44px;right:12px}#root{width:min(1280px,100% - 24px);margin:0 auto;padding:24px 0 64px}h1,h2,h3{font-family:var(--display);letter-spacing:-.03em;margin:0;font-weight:560}h1{font-size:clamp(2rem,5vw,4rem);line-height:1.05}h2{margin-bottom:8px;font-size:1.4rem}button{font:inherit;cursor:pointer}.eyebrow,.mode-chip,.prompt-kicker{text-transform:uppercase;letter-spacing:.16em;color:var(--accent);margin:0 0 8px;font-size:.72rem}.lede,.hint-text{color:var(--muted);max-width:52ch}.hero .lede{max-width:62ch;margin-left:auto;margin-right:auto}.hero{text-align:center;padding:12px 8px}.setup-bar{margin:0 0 16px;padding:0 4px}.setup-back{margin:0 0 10px;padding-left:0;display:inline-block}.setup-bar h1{font-size:unset;white-space:nowrap;flex-wrap:nowrap;align-items:baseline;gap:.45em;max-width:none;line-height:1.1;display:flex}.brand-mark{letter-spacing:-.04em;background:linear-gradient(100deg,#3ee0b0 0%,#7cc4ff 48%,#c9a6ff 100%);color:#0000;filter:drop-shadow(0 0 14px #3ee0b066);-webkit-background-clip:text;background-clip:text;font-size:clamp(1.85rem,4.2vw,2.7rem);font-weight:800}.brand-sub{font-family:var(--sans);letter-spacing:.01em;color:var(--muted);opacity:.85;white-space:nowrap;font-size:clamp(.78rem,1.5vw,1rem);font-weight:500}.setup-kicker{font-family:var(--display);letter-spacing:-.02em;color:var(--accent-2);margin:8px 0 0;font-size:1.15rem}.about{border-top:1px solid var(--line);margin-top:40px;padding:22px 8px 8px}.about .lede{max-width:68ch;margin:0;line-height:1.55}.screen.title{text-align:center;flex-direction:column;justify-content:center;align-items:center;min-height:calc(100vh - 88px);display:flex}.brand-logo{border-radius:18px;width:min(100%,720px);height:auto;margin:0 auto 8px;display:block;box-shadow:0 0 0 1px #50b4ff40,0 18px 50px #0050b459}.screen.title .brand-logo{margin-bottom:12px}.screen.title .byline{justify-content:center;margin:0 0 20px}.play-button.title-start{width:min(280px,100%);margin-top:16px}.auth-overlay{z-index:40;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#040c16b8;justify-content:center;align-items:center;padding:24px;display:flex;position:fixed;inset:0}.auth-dialog{width:min(420px,100%);position:relative}.auth-close{z-index:1;width:36px;height:36px;color:var(--text);cursor:pointer;background:#ffffff1a;border:0;border-radius:999px;padding:0;font-size:1.45rem;line-height:1;position:absolute;top:10px;right:10px}.auth-close:hover{background:#ffffff2e}.auth-status-line{color:var(--muted);justify-content:center;align-items:center;gap:8px;margin:0 0 4px;display:flex}.auth-card{text-align:left;background:linear-gradient(180deg, var(--bg-elev), var(--bg-elev-2));border:1px solid var(--line);width:100%;box-shadow:var(--shadow);border-radius:16px;margin:0;padding:44px 18px 16px}.auth-lead,.auth-status{color:var(--muted);margin:0 0 12px;font-size:.92rem}.auth-card label{color:var(--muted);letter-spacing:.04em;text-transform:uppercase;flex-direction:column;gap:4px;margin-bottom:10px;font-size:.8rem;display:flex}.auth-card input{font:inherit;border:1px solid var(--line);color:var(--text);text-transform:none;letter-spacing:0;background:#00000040;border-radius:10px;padding:10px 12px}.auth-error{color:var(--wrong);margin:0 0 8px;font-size:.9rem}.play-button.auth-submit{margin-top:4px}.rank-head{flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:12px;display:flex}.element-ranks{margin-top:28px}.rank-more{margin-top:10px}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.hero .byline{justify-content:center}.byline{flex-wrap:wrap;align-items:baseline;gap:8px 12px;margin:12px 0 18px;display:flex}.byline-label{text-transform:uppercase;letter-spacing:.16em;color:var(--muted);font-size:.68rem}.byline-name{font-family:var(--display);letter-spacing:-.02em;color:var(--accent-2);font-size:1.2rem;font-weight:560}.setup-card,.preview,.prompt-card,.missed{background:linear-gradient(180deg, var(--bg-elev), var(--bg-elev-2));border:1px solid var(--line);box-shadow:var(--shadow);border-radius:20px;padding:20px}.mode-grid{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:10px;margin:16px 0 20px;display:grid}.mode-card,.pills button,.play-button,.hint-button,.text-button{border:1px solid var(--line);color:var(--text);background:#ffffff08;border-radius:14px;transition:transform .12s,border-color .12s,background .12s}.mode-card{text-align:left;flex-direction:column;gap:6px;padding:14px;display:flex}.mode-card span,.hint-text{color:var(--muted);font-size:.92rem}.mode-card.is-selected,.pills button.is-selected{border-color:var(--accent);background:#3ee0b01f;box-shadow:inset 0 0 0 1px #3ee0b059}.setup-row{grid-template-columns:1.2fr .8fr;gap:24px;display:grid}.pills{flex-wrap:wrap;gap:8px;margin:8px 0;display:flex}.pills button{padding:8px 12px}.timer-toggle{color:var(--muted);align-items:center;gap:8px;margin-top:8px;display:flex}.play-button{background:var(--accent);color:#06281f;border:0;width:100%;margin-top:18px;padding:14px 18px;font-size:1.05rem;font-weight:700}.play-button:hover,.mode-card:hover,.pills button:hover,.hint-button:hover{transform:translateY(-1px)}.text-button{background:0 0;padding:8px 12px}.preview{margin-top:28px}.play-bar{justify-content:space-between;align-items:center;gap:12px;margin-bottom:16px;display:flex}.progress{color:var(--muted);margin:0}.prompt-card{text-align:center;padding:22px 16px}.prompt-card h1{font-size:clamp(1.6rem,4vw,2.6rem)}.prompt-card.is-clues h1{white-space:pre-line;font-size:clamp(1.15rem,2.6vw,1.7rem);line-height:1.35;font-family:var(--sans);letter-spacing:-.02em;text-align:left;max-width:40rem;margin:0 auto;font-weight:700}.prompt-card.is-try1{border-color:#3ee0b0bf}.prompt-card.is-try2{border-color:#f0c14bbf}.prompt-card.is-try3{border-color:#f08a3ecc}.type-answer{text-align:center;max-width:28rem;margin:0 auto}.type-answer-clue{flex-direction:column;align-items:center;gap:4px;margin:0 0 16px;display:flex}.type-answer-number{color:var(--muted);font-size:1rem}.type-answer-symbol{font-family:var(--display);font-size:clamp(3rem,10vw,5rem);font-weight:560;line-height:1}.type-answer label{text-align:left;color:var(--muted);margin-bottom:6px;font-size:.85rem;display:block}.type-answer-row{gap:8px;display:flex}.type-answer input{border:1px solid var(--line);background:var(--bg-elev);min-width:0;color:var(--text);font:inherit;border-radius:12px;flex:1;padding:12px 14px}.type-answer .play-button{width:auto;margin:0;padding-inline:20px}.type-answer-preview{color:var(--muted);letter-spacing:.04em;font-size:1.15rem}.prompt-card.is-fail{border-color:#ff3b5cd9}.guess-pips{justify-content:center;gap:8px;margin:12px 0 4px;display:flex}.guess-pip{background:0 0;border:2px solid #b4d2ff59;border-radius:50%;width:12px;height:12px}.guess-pip.is-used{background:#ff8aa0;border-color:#ff8aa0}.guess-pip.is-fail{background:#ff3b5c;border-color:#ff3b5c}.screen.play{position:relative}.wrong-pick-toast{z-index:40;pointer-events:none;text-align:center;color:#fff;background:#1c080ef0;border:1px solid #ff6b85a6;border-radius:16px;min-width:min(92vw,420px);padding:16px 22px;animation:1s forwards wrong-pick-pop;position:fixed;top:42%;left:50%;box-shadow:0 18px 50px #00000073}.wrong-pick-toast span{text-transform:uppercase;letter-spacing:.12em;color:#ffb0be;font-size:.72rem;display:block}.wrong-pick-toast strong{font-family:var(--display);margin-top:6px;font-size:clamp(1.2rem,3vw,1.8rem);font-weight:560;display:block}@keyframes wrong-pick-pop{0%{opacity:0;transform:translate(-50%,-42%)scale(.92)}12%{opacity:1;transform:translate(-50%,-50%)scale(1)}70%{opacity:1;transform:translate(-50%,-50%)scale(1)}to{opacity:0;transform:translate(-50%,-58%)scale(.98)}}.answer-banner{margin:14px 0 0;font-size:1.05rem}.answer-banner strong{font-family:var(--display);letter-spacing:-.02em;margin-top:4px;font-size:clamp(1.4rem,3vw,2rem);display:block}.answer-banner--ok{color:var(--text)}.answer-banner--fail{color:#ffdce3}.answer-banner--fail strong{color:#ff6b85}.group-pill{align-items:center;gap:6px;display:inline-flex}.group-explainer{color:var(--muted);max-width:62ch;margin:4px 0 0;font-size:.9rem;line-height:1.45}.has-tip{position:relative}.has-tip .tip{border:1px solid var(--line);width:min(280px,70vw);color:var(--text);text-align:left;box-shadow:var(--shadow);opacity:0;visibility:hidden;pointer-events:none;z-index:20;background:#0d1828;border-radius:12px;padding:10px 12px;font-size:.8rem;font-weight:400;line-height:1.4;transition:opacity .12s,transform .12s,visibility .12s;position:absolute;bottom:calc(100% + 10px);left:50%;transform:translate(-50%)translateY(4px)}.has-tip .tip:after{content:"";border:6px solid #0000;border-top-color:#0d1828;margin-left:-6px;position:absolute;top:100%;left:50%}.has-tip:hover .tip,.has-tip:focus-visible .tip{opacity:1;visibility:visible;transform:translate(-50%)translateY(0)}.swatch-common{background:linear-gradient(135deg,#3ee0b0,#7cc4ff)}.swatch-all{background:linear-gradient(135deg,#f5b6b0,#f6e2a1,#b9d8f5)}.reveal-line{color:var(--gold);margin:10px 0 0}.stats{grid-template-columns:repeat(auto-fit,minmax(110px,1fr));gap:8px;margin:16px 0;padding:0;list-style:none;display:grid}.stats li{background:var(--bg-elev);border:1px solid var(--line);border-radius:12px;padding:10px 12px}.stats span{color:var(--muted);text-transform:uppercase;letter-spacing:.08em;font-size:.75rem;display:block}.stats strong{font-size:1.2rem}.hint-block{margin:0 0 14px}.hint-button{margin:0;padding:8px 14px}.hint-explainer{max-width:46ch;color:var(--muted);margin:8px 0 0;font-size:.9rem}.table-wrap{padding-bottom:8px;overflow-x:auto}.periodic-table{grid-template-rows:repeat(7,minmax(58px,auto)) 16px minmax(58px,auto) minmax(58px,auto);grid-template-columns:repeat(18,minmax(52px,1fr));gap:3px;min-width:980px;display:grid}.element-list{grid-template-columns:repeat(auto-fill,minmax(108px,1fr));gap:8px;display:grid}.tile,.f-placeholder{color:#0c1724;text-align:left;z-index:1;cursor:pointer;border:0;border-radius:7px;flex-direction:column;justify-content:space-between;align-items:flex-start;min-height:58px;padding:4px;display:flex;position:relative;box-shadow:inset 0 0 0 1px #0c172438}.tile:disabled{cursor:default}.tile-number{font-variant-numeric:tabular-nums;letter-spacing:-.02em;width:100%;font-size:.78rem;font-weight:800;line-height:1}.tile-name{width:100%;font-size:.62rem;line-height:1.1}.tile-symbol{font-size:1rem;font-weight:800;line-height:1}.tile-name{white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.f-placeholder{color:var(--muted);background:#ffffff0a;justify-content:center;align-items:center;font-size:.7rem}.tile--alkali-metal{background:#ff6b6b}.tile--alkaline-earth{background:#ffa94d}.tile--lanthanide{background:#ff85c2}.tile--actinide{background:#c4a484}.tile--transition-metal{background:#ffe066}.tile--post-transition-metal{background:#8ce99a}.tile--metalloid{background:#38d9a9}.tile--nonmetal{background:#4dabf7}.tile--halogen{background:#748ffc}.tile--noble-gas{background:#da77f2}.tile--unknown{background:#adb5bd}.tile--plain{background:#b7c6d6}.tile--hint{outline:2px solid var(--accent-2);outline-offset:1px}.tile--hint-strong{outline:2px solid var(--gold);outline-offset:1px}.tile--dim{opacity:.28;filter:grayscale(.35);pointer-events:none}.tile--try1{z-index:2;transform:scale(1.06);background:#3ee0b0!important}.tile--try2{z-index:2;transform:scale(1.06);background:#f0c14b!important}.tile--try3{z-index:2;transform:scale(1.06);background:#f08a3e!important}.tile--fail{color:#fff;z-index:3;transform:scale(1.1);box-shadow:0 0 0 3px #fff,0 0 22px #ff3b5cd9;background:#ff3b5c!important}.tile--solved{z-index:1;pointer-events:none;transform:none}.tile--solved.tile--fail{box-shadow:none;color:#fff}.tile--missed{color:#ffd6de;opacity:.9;background:#8a3a4a!important}.tile--correct{transform:scale(1.04);background:#3ee0b0!important}.tile--wrong{background:#ff6b85!important}.tile--reveal{box-shadow:0 0 0 2px #f0c14b,0 0 16px #f0c14b99}.legend{color:var(--muted);flex-wrap:wrap;gap:10px 14px;margin:0;padding:16px 0 0;font-size:.82rem;list-style:none;display:flex}.legend-item{cursor:help;border-radius:6px;outline:none}.legend-item:focus-visible{box-shadow:0 0 0 2px var(--accent-2)}.legend-swatch{vertical-align:-1px;border-radius:3px;width:12px;height:12px;margin-right:6px;display:inline-block}.results{text-align:center;padding-top:24px}.results h1{margin:8px 0}.results-stats{margin:24px 0}.missed{text-align:left;margin:12px 0 24px}.missed ul{margin:0;padding:0;list-style:none}.missed li{border-bottom:1px solid var(--line);justify-content:space-between;gap:12px;padding:8px 0;display:flex}.perfect{color:var(--accent)}.scoreboard{text-align:left;margin:28px 0 8px}.scoreboard h2{margin-bottom:6px}.scoreboard-delta{color:var(--accent);margin:0 0 10px;font-size:.95rem}.scoreboard-wrap{border:1px solid var(--line);background:var(--bg-elev);border-radius:14px;overflow-x:auto}.scoreboard table{border-collapse:collapse;width:100%;font-size:.92rem}.scoreboard th,.scoreboard td{text-align:left;white-space:nowrap;padding:10px 12px}.scoreboard th{color:var(--muted);text-transform:uppercase;letter-spacing:.08em;border-bottom:1px solid var(--line);font-size:.72rem;font-weight:700}.scoreboard td{border-top:1px solid var(--line)}.scoreboard tr.is-current td{color:var(--accent);background:#3ee0b014}.scoreboard td:nth-child(2),.scoreboard td:nth-child(3){font-variant-numeric:tabular-nums}.result-actions{flex-direction:column;align-items:center;gap:8px;display:flex}.result-actions .play-button{max-width:320px}@media (width<=800px){html,body{overflow-x:hidden}#root{width:min(1280px,100% - 16px);padding:12px 0 40px;padding-bottom:max(40px, env(safe-area-inset-bottom))}.screen.title,.screen.home,.screen.play,.results{padding-top:40px}.sound-menu{top:max(8px, env(safe-area-inset-top));right:max(8px, env(safe-area-inset-right))}.perf-hud{top:auto;bottom:8px;right:10px}.setup-bar h1{white-space:normal;flex-wrap:wrap}.brand-sub{white-space:normal}.setup-row{grid-template-columns:1fr}.play-bar{flex-wrap:wrap;align-items:center;row-gap:6px;padding-right:4.75rem}.play-bar .mode-chip{flex:100%;order:3;line-height:1.35}.text-button,.hint-button,.pills button,.mode-card,.auth-close{min-height:44px}.setup-card,.preview,.prompt-card{padding:14px 12px}.prompt-card h1{overflow-wrap:anywhere}.type-answer-row{flex-direction:column}.type-answer input{min-height:44px;font-size:16px}.type-answer .play-button{width:100%}.stats{grid-template-columns:repeat(auto-fit,minmax(88px,1fr))}.table-wrap{-webkit-overflow-scrolling:touch;overscroll-behavior-x:contain;overflow-x:auto}.periodic-table{grid-template-rows:repeat(7,minmax(2.35rem,auto)) .5rem minmax(2.35rem,auto) minmax(2.35rem,auto);grid-template-columns:repeat(18,minmax(0,1fr));gap:2px;width:100%;min-width:0}.tile,.f-placeholder{border-radius:4px;min-height:2.35rem;padding:2px 1px}.tile-name{display:none}.tile-number{font-size:.55rem}.tile-symbol{font-size:.72rem}.f-placeholder{font-size:.55rem}.element-list{grid-template-columns:repeat(auto-fill,minmax(96px,1fr))}.auth-overlay{padding:max(16px, env(safe-area-inset-top)) 12px max(16px, env(safe-area-inset-bottom));align-items:flex-start;overflow-y:auto}}