:root{--bg:#0f1424;--panel:#0f1424d6;--hud-panel:#0f14247a;--panel2:#171f36e0;--text:#f7f9ff;--muted:#b8c0d8;--accent:#6ef3a5;--danger:#ff697d}body.light-mode{--bg:#f5f7fb;--panel:#ffffffe6;--hud-panel:#ffffff8a;--panel2:#f5f8fdf0;--text:#172033;--muted:#667085;--accent:#27c978;--danger:#e9516c}body.light-mode .panel{border-color:#1a27421c;box-shadow:0 10px 32px #20304e17}body.light-mode #minimapWrap{box-shadow:0 18px 55px #20304e21}body.light-mode #startScreen,body.light-mode #gameOver{background:radial-gradient(circle,#accbff4d,#eef3fae0)}body.light-mode .modal{background:linear-gradient(#fffffff7,#f2f6fcf7);border-color:#1a27421f;box-shadow:0 30px 80px #28365033}body.light-mode input{color:#172033;background:#1e2d460f;border-color:#1a274229}*{box-sizing:border-box}html,body{background:var(--bg);width:100%;height:100%;color:var(--text);margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;overflow:hidden}canvas{cursor:crosshair;width:100vw;height:100vh;display:block}.overlay{pointer-events:none;position:fixed;inset:0}.panel{background:var(--hud-panel);-webkit-backdrop-filter:blur(7px);border:1px solid #ffffff14;box-shadow:0 12px 38px #0000002e}#minimapWrap{background:var(--panel);-webkit-backdrop-filter:blur(12px);box-shadow:0 18px 55px #00000038}#stats{border-radius:14px;width:fit-content;min-width:145px;max-width:225px;padding:11px 14px;font-size:13px;line-height:1.45;position:absolute;bottom:18px;left:18px}.instability-hud{border-top:1px solid #ffffff17;margin-top:7px;padding-top:7px}body.light-mode .instability-hud{border-top-color:#1a27421a}.instability-row{letter-spacing:.035em;text-transform:uppercase;justify-content:space-between;align-items:baseline;gap:10px;font-size:11px;font-weight:800;display:flex}.instability-row span:last-child{color:var(--muted);font-weight:700}.instability-track{background:#7f91af2e;border:1px solid #ffffff12;border-radius:999px;width:155px;max-width:100%;height:7px;margin-top:5px;overflow:hidden}.instability-fill{border-radius:inherit;background:linear-gradient(90deg,#35d8ff,#ffd34e,#ff9858,#ff5d78);height:100%}.instability-note{max-width:155px;color:var(--muted);white-space:normal;margin-top:4px;font-size:10px;line-height:1.3}#leaderboard{border-radius:14px;width:210px;padding:13px 15px;position:absolute;top:18px;right:18px}#leaderboard h3{letter-spacing:.04em;text-transform:uppercase;color:var(--muted);margin:0 0 8px;font-size:14px}#leaders{margin:0;padding-left:23px;font-size:13px;line-height:1.7}#leaders li.me{color:var(--accent);font-weight:700}#minimapWrap{border-radius:14px;width:190px;padding:10px;position:absolute;bottom:18px;right:18px}#minimapTitle{letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin:0 0 7px;font-size:11px;font-weight:800}#minimap{background:#060911b8;border:1px solid #ffffff1a;border-radius:9px;width:170px;height:170px;display:block}#hint{color:var(--muted);white-space:nowrap;border-radius:999px;padding:9px 15px;font-size:12px;position:absolute;bottom:18px;left:50%;transform:translate(-50%)}#massCharge{background:var(--hud-panel);-webkit-backdrop-filter:blur(7px);border:1px solid #ffffff1a;border-radius:14px;width:min(340px,72vw);padding:9px 11px 10px;position:absolute;bottom:72px;left:50%;transform:translate(-50%);box-shadow:0 10px 30px #00000029}#massChargeLabel{letter-spacing:.035em;justify-content:space-between;gap:12px;margin-bottom:6px;font-size:11px;font-weight:800;display:flex}#massChargeLabel span:last-child{color:var(--muted);font-weight:700}#massChargeTrack{background:#7f91af33;border:1px solid #ffffff14;border-radius:999px;height:9px;overflow:hidden}#massChargeFill{border-radius:inherit;background:linear-gradient(90deg,#35d8ff,#6d70ff,#ff6f91);width:0%;height:100%}#startScreen,#gameOver{pointer-events:auto;background:radial-gradient(circle,#26355d47,#050810d6);place-items:center;display:grid;position:fixed;inset:0}.modal{text-align:center;background:linear-gradient(#1e2745f5,#0e1323f5);border:1px solid #ffffff1a;border-radius:24px;width:min(92vw,470px);padding:28px;box-shadow:0 30px 90px #0000007a}.logo{letter-spacing:-.055em;margin-bottom:8px;font-size:clamp(35px,7vw,63px);font-weight:900;line-height:.95}.logo span{color:var(--accent)}.subtitle{color:var(--muted);max-width:370px;margin:0 auto 22px;font-size:14px;line-height:1.55}input{color:#fff;background:#ffffff12;border:1px solid #ffffff1f;border-radius:12px;outline:none;width:100%;margin:0 0 11px;padding:13px 15px;font-size:15px}input:focus{border-color:#6ef3a5b3;box-shadow:0 0 0 3px #6ef3a514}button{background:var(--accent);color:#0b1a13;cursor:pointer;border:0;border-radius:12px;width:100%;padding:13px 16px;font-size:15px;font-weight:850;transition:transform .14s,filter .14s}button:hover{filter:brightness(1.05);transform:translateY(-1px)}button:active{transform:translateY(1px)}.small{color:var(--muted);margin-top:14px;font-size:12px;line-height:1.55}.mode-title{color:var(--muted);letter-spacing:.06em;text-transform:uppercase;text-align:left;margin:2px 0 8px;font-size:12px;font-weight:800}.mode-grid{grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:12px;display:grid}@media (width<=720px){.mode-grid{grid-template-columns:1fr}}.mode-option{text-align:left;background:var(--panel2);width:100%;color:var(--text);box-shadow:none;border:2px solid #0000;border-radius:14px;padding:12px}.mode-option:hover{filter:none;border-color:#6ef3a561;transform:none}.mode-option.selected{border-color:var(--accent);box-shadow:0 0 0 3px #6ef3a51a}.mode-name{margin-bottom:4px;font-size:14px;font-weight:850;display:block}.mode-desc{color:var(--muted);font-size:11px;font-weight:600;line-height:1.35;display:block}.score{margin:12px 0 18px;font-size:28px;font-weight:850}.hidden{display:none!important}#themeToggle{background:var(--panel);width:auto;min-width:116px;color:var(--text);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);pointer-events:auto;cursor:pointer;border:1px solid #ffffff1a;border-radius:999px;padding:9px 13px;font-size:12px;font-weight:800;position:absolute;top:18px;left:18px;box-shadow:0 12px 32px #0000002e}body.light-mode #themeToggle{border-color:#1a27421f;box-shadow:0 12px 28px #20304e1f}#themeToggle:hover{transform:translateY(-1px)}@media (width<=640px){#leaderboard{width:165px;font-size:11px}#hint{display:none}#stats{font-size:11px}#minimapWrap{width:146px;padding:8px;bottom:10px;right:10px}#minimap{width:128px;height:128px}}