: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}#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}.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}.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}.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}.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-button{margin:0 0 14px;padding:8px 14px}.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-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)}.result-actions{flex-direction:column;align-items:center;gap:8px;display:flex}.result-actions .play-button{max-width:320px}@media (width<=800px){.setup-row{grid-template-columns:1fr}}