:root{
  --bg:#0b0e14; --bg2:#121724; --card:#161c2b; --card2:#1c2436;
  --line:#242c40; --txt:#e8ecf5; --muted:#8a93a8; --muted2:#5f677d;
  --accent:#5b8cff; --accent2:#7c5cff; --good:#33d69f; --bad:#ff5c72; --warn:#ffb340;
  --vel:#33d69f; --mem:#5b8cff; --foco:#ffb340; --flex:#7c5cff; --raz:#ff5c72;
  --r:18px; --r2:14px;
  --safe-top:env(safe-area-inset-top,0px); --safe-bot:env(safe-area-inset-bottom,0px);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;height:100%}
body{
  background:var(--bg);
  color:var(--txt); font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Inter,system-ui,sans-serif;
  overscroll-behavior:none; user-select:none;
}
#app{max-width:520px;margin:0 auto;min-height:100%;display:flex;flex-direction:column;
  padding-top:var(--safe-top);padding-bottom:var(--safe-bot)}

/* Top bar */
#topbar{display:flex;align-items:center;justify-content:space-between;padding:14px 18px 6px}
.brand{font-weight:800;font-size:20px;letter-spacing:.3px}
.brand .logo{color:var(--accent);margin-right:2px}
.top-right{display:flex;align-items:center;gap:10px}
.streak{font-size:14px;color:var(--warn);font-weight:700}
.lang-btn{background:var(--card);color:var(--muted);border:1px solid var(--line);
  border-radius:20px;padding:5px 11px;font-size:12px;font-weight:700}

/* Screen */
#screen{flex:1;padding:8px 16px 90px;overflow-y:auto}
.hidden{display:none!important}

/* Cards */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:18px;margin-bottom:14px}
.card.tap{cursor:pointer;transition:transform .12s ease,border-color .12s}
.card.tap:active{transform:scale(.985)}
.h1{font-size:26px;font-weight:800;margin:6px 0 2px}
.sub{color:var(--muted);font-size:14px;margin:0 0 14px;line-height:1.4}
.eyebrow{color:var(--accent);font-size:12px;font-weight:800;letter-spacing:1px;text-transform:uppercase}

/* Session hero */
.hero{background:linear-gradient(135deg,#20305c 0,#171e30 100%);
  border:1px solid #2b3a63;border-radius:var(--r);padding:20px;margin-bottom:16px}
.hero h2{margin:2px 0 4px;font-size:22px}
.hero p{margin:0 0 16px;color:#b9c3dd;font-size:14px}
.pills{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px}
.pill{background:#0e1626;border:1px solid #2b3a63;border-radius:20px;padding:6px 12px;font-size:12px;color:#c7d0e6;font-weight:600}
.pill.done{opacity:.5;text-decoration:line-through}

/* Buttons */
.btn{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;
  background:linear-gradient(135deg,var(--accent) 0,var(--accent2) 100%);color:#fff;border:none;
  border-radius:var(--r2);padding:16px;font-size:16px;font-weight:800;cursor:pointer}
.btn:active{filter:brightness(.94)}
.btn.ghost{background:var(--card2);color:var(--txt);border:1px solid var(--line)}
.btn.sm{padding:11px;font-size:14px}
.btn:disabled{opacity:.5}

/* Index ring */
.indexwrap{display:flex;flex-direction:column;align-items:center;text-align:center;padding:6px 0 4px}
.ring{position:relative;width:200px;height:200px;margin:6px 0}
.ring svg{transform:rotate(-90deg)}
.ring .val{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center}
.ring .num{font-size:52px;font-weight:800;line-height:1}
.ring .lbl{font-size:12px;color:var(--muted);margin-top:4px;letter-spacing:.5px}
.pct{color:var(--good);font-weight:700;font-size:14px}

/* Domain bars */
.dom{display:flex;align-items:center;gap:12px;margin:12px 0}
.dom .dname{width:96px;font-size:13px;color:var(--muted);font-weight:600}
.dom .track{flex:1;height:9px;background:var(--bg2);border-radius:6px;overflow:hidden}
.dom .fill{height:100%;border-radius:6px;transition:width .6s ease}
.dom .dval{width:34px;text-align:right;font-size:13px;font-weight:700}

/* Game list */
.glist{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.gcard{background:var(--card);border:1px solid var(--line);border-radius:var(--r2);padding:16px;cursor:pointer;position:relative;overflow:hidden}
.gcard:active{transform:scale(.97)}
.gcard .gi{font-size:28px}
.gcard .gt{font-weight:700;margin-top:8px;font-size:15px}
.gcard .gd{color:var(--muted);font-size:12px;margin-top:2px;line-height:1.3}
.gcard .tag{display:inline-block;margin-top:10px;font-size:10px;font-weight:800;letter-spacing:.5px;
  padding:3px 8px;border-radius:20px;text-transform:uppercase}

/* Game runtime */
#screen.playing{padding:0}
.stage{position:fixed;inset:0;background:var(--bg);display:flex;flex-direction:column;z-index:50;
  padding:calc(var(--safe-top) + 8px) 16px calc(var(--safe-bot) + 8px)}
.stage-top{display:flex;align-items:center;justify-content:space-between;color:var(--muted);font-size:13px;font-weight:600}
.stage-top .quit{background:none;border:none;color:var(--muted);font-size:22px;padding:4px 8px}
.stage-mid{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}
.prog{height:5px;background:var(--bg2);border-radius:6px;margin-top:8px;overflow:hidden}
.prog>i{display:block;height:100%;background:var(--accent);width:0;transition:width .25s}
.bigtxt{font-size:20px;font-weight:700;margin-bottom:8px}
.dim{color:var(--muted);font-size:14px}
.instr{max-width:340px;color:var(--muted);line-height:1.5;font-size:15px;margin:14px 0 26px}

/* Flash grid (8 peripheral positions) */
.field{position:relative;width:300px;height:300px;max-width:82vw;max-height:82vw}
.center-stim{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:64px;font-weight:800}
.fix{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);color:var(--muted);font-size:26px}
.ppos{position:absolute;width:44px;height:44px;border-radius:50%;transform:translate(-50%,-50%);
  border:2px solid var(--line);display:flex;align-items:center;justify-content:center;cursor:pointer;background:var(--card)}
.ppos.on{background:var(--accent);border-color:var(--accent)}
.ppos.pick{border-color:var(--accent);background:var(--accent2)}
.dot{width:20px;height:20px;border-radius:50%;background:var(--warn)}

/* choices */
.choices{display:flex;gap:12px;flex-wrap:wrap;justify-content:center;margin-top:8px}
.choice{min-width:120px;padding:18px 22px;border-radius:var(--r2);border:2px solid var(--line);
  background:var(--card);color:var(--txt);font-size:22px;font-weight:800;cursor:pointer}
.choice:active{transform:scale(.96)}
.choice.big{font-size:44px;min-width:100px}

/* nback grid */
.ngrid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;width:280px;height:280px;max-width:80vw;max-height:80vw}
.ncell{background:var(--card);border:1px solid var(--line);border-radius:12px}
.ncell.on{background:var(--accent);border-color:var(--accent);box-shadow:0 0 24px rgba(91,140,255,.5)}

/* stroop */
.stroop-word{font-size:56px;font-weight:900;margin:10px 0 26px}

/* result flash */
.flash-ok{animation:okp .3s}
@keyframes okp{0%{background:rgba(51,214,159,.18)}100%{background:transparent}}
.flash-bad{animation:badp .3s}
@keyframes badp{0%{background:rgba(255,92,114,.18)}100%{background:transparent}}

/* results screen */
.result-num{font-size:44px;font-weight:800;margin:4px 0}
.metrics{display:flex;gap:10px;margin:16px 0}
.metric{flex:1;background:var(--card2);border-radius:var(--r2);padding:14px;text-align:center}
.metric b{display:block;font-size:22px}
.metric span{color:var(--muted);font-size:12px}
.delta{font-weight:700}.delta.up{color:var(--good)}.delta.down{color:var(--bad)}

/* misc */
.note{background:#141b12;border:1px solid #2a3a1e;color:#b7d99a;font-size:12px;line-height:1.5;
  border-radius:12px;padding:12px 14px;margin-top:8px}
.legal{color:var(--muted2);font-size:11px;line-height:1.5;margin-top:14px}
.row{display:flex;gap:12px}.row>*{flex:1}
.setting{display:flex;align-items:center;justify-content:space-between;padding:14px 0;border-bottom:1px solid var(--line)}
.setting:last-child{border-bottom:none}
.chart{display:flex;align-items:flex-end;gap:6px;height:90px;margin:10px 0}
.chart .bar{flex:1;background:var(--card2);border-radius:6px 6px 0 0;min-height:4px;position:relative}
.chart .bar>i{position:absolute;bottom:0;left:0;right:0;background:linear-gradient(var(--accent),var(--accent2));border-radius:6px 6px 0 0}
.empty{color:var(--muted);text-align:center;padding:30px 10px;font-size:14px}
.center{text-align:center}
.mt{margin-top:14px}
.badge-pro{background:linear-gradient(135deg,var(--warn),#ff8a3d);color:#241500;font-size:10px;font-weight:900;padding:3px 8px;border-radius:20px}

/* Tab bar */
#tabbar{position:fixed;bottom:0;left:0;right:0;max-width:520px;margin:0 auto;display:flex;
  background:rgba(11,14,20,.92);backdrop-filter:blur(12px);border-top:1px solid var(--line);
  padding:8px 6px calc(6px + var(--safe-bot));z-index:40}
.tab{flex:1;background:none;border:none;color:var(--muted2);display:flex;flex-direction:column;
  align-items:center;gap:3px;padding:4px;cursor:pointer;font:inherit}
.tab span{font-size:20px;line-height:1;filter:grayscale(.4);opacity:.7}
.tab label{font-size:10px;font-weight:600;pointer-events:none}
.tab.active{color:var(--accent)}
.tab.active span{filter:none;opacity:1}

/* Habit / bienestar */
.habit{display:flex;align-items:center;gap:14px;padding:14px 0;border-bottom:1px solid var(--line)}
.habit:last-child{border-bottom:none}
.habit .hi{font-size:26px;width:34px;text-align:center}
.habit .hbody{flex:1;min-width:0}
.habit .hname{font-weight:700;font-size:15px}
.habit .hmeta{color:var(--muted);font-size:12px;margin-top:1px}
.habit .hev{display:inline-block;font-size:9px;font-weight:800;letter-spacing:.4px;text-transform:uppercase;
  padding:2px 6px;border-radius:20px;margin-top:5px}
.stepper{display:flex;align-items:center;gap:8px}
.stepper button{width:34px;height:34px;border-radius:10px;border:1px solid var(--line);background:var(--card2);
  color:var(--txt);font-size:20px;font-weight:800;cursor:pointer;display:flex;align-items:center;justify-content:center}
.stepper button:active{filter:brightness(.9)}
.stepper .hval{min-width:48px;text-align:center;font-weight:800;font-size:15px}
.hcheck{color:var(--good);font-size:20px;width:24px;text-align:center}
.evhigh{background:#12271b;color:#4fe0a6}
.evmed{background:#2a2411;color:#ffcf70}

/* Pro / paywall */
.gcard.locked{opacity:.85}
.gcard .lock{position:absolute;top:8px;right:8px;background:linear-gradient(135deg,var(--warn),#ff8a3d);
  color:#241500;font-size:9px;font-weight:900;padding:3px 7px;border-radius:20px}
.paywall{position:fixed;inset:0;z-index:60;background:rgba(6,8,12,.82);backdrop-filter:blur(6px);
  display:flex;align-items:flex-end;justify-content:center}
.paywall .sheet{width:100%;max-width:520px;background:var(--bg2);border:1px solid var(--line);
  border-radius:24px 24px 0 0;padding:24px 20px calc(24px + var(--safe-bot));max-height:92vh;overflow-y:auto;
  animation:slideup .28s ease}
@keyframes slideup{from{transform:translateY(40px);opacity:.6}to{transform:translateY(0);opacity:1}}
.pw-crown{font-size:44px;text-align:center}
.pw-title{font-size:26px;font-weight:800;text-align:center;margin:6px 0 2px}
.pw-sub{color:var(--muted);text-align:center;margin:0 0 18px}
.pw-ben{display:flex;align-items:center;gap:12px;padding:10px 0;font-size:15px}
.pw-ben .ck{color:var(--good);font-size:18px}
.plans{display:flex;gap:12px;margin:18px 0 6px}
.plan{flex:1;border:2px solid var(--line);border-radius:16px;padding:16px 12px;text-align:center;cursor:pointer;position:relative}
.plan.sel{border-color:var(--accent);background:#131b2e}
.plan .pn{font-size:13px;color:var(--muted);font-weight:700}
.plan .pp{font-size:22px;font-weight:800;margin:4px 0 0}
.plan .pu{font-size:12px;color:var(--muted)}
.plan .save{position:absolute;top:-10px;left:50%;transform:translateX(-50%);background:var(--good);color:#04160f;
  font-size:10px;font-weight:900;padding:2px 8px;border-radius:20px;white-space:nowrap}
.pw-close{background:none;border:none;color:var(--muted);width:100%;padding:14px;font-size:14px;font-weight:600;margin-top:6px}
.pro-tag{display:inline-flex;align-items:center;gap:5px;background:linear-gradient(135deg,var(--warn),#ff8a3d);
  color:#241500;font-size:11px;font-weight:900;padding:4px 10px;border-radius:20px}

/* Onboarding */
.ob{position:fixed;inset:0;z-index:70;background:var(--bg);display:flex;flex-direction:column;
  max-width:520px;margin:0 auto;padding:calc(var(--safe-top) + 16px) 24px calc(var(--safe-bot) + 24px)}
.ob-top{display:flex;justify-content:flex-end;min-height:36px}
.ob-skip{background:none;border:none;color:var(--muted);font-size:15px;font-weight:600;padding:6px 4px}
.ob-body{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}
.ob-art{width:180px;height:180px;display:flex;align-items:center;justify-content:center;margin-bottom:34px}
.ob-emoji{font-size:96px;line-height:1}
.ob-chips{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;max-width:320px;margin-top:6px}
.ob-chip{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:8px 16px;font-size:14px;font-weight:600}
.ob h2{font-size:28px;font-weight:800;margin:0 0 12px}
.ob p{color:var(--muted);font-size:16px;line-height:1.6;max-width:360px;margin:0}
.ob-honest{background:#141b12;border:1px solid #2a3a1e;border-radius:16px;padding:16px 18px;max-width:380px}
.ob-honest p{color:#b7d99a}
.ob-dots{display:flex;gap:8px;justify-content:center;margin:26px 0}
.ob-dot{width:8px;height:8px;border-radius:50%;background:var(--line);transition:all .2s}
.ob-dot.on{background:var(--accent);width:22px;border-radius:4px}
.ob-nav{display:flex;gap:12px;align-items:center}
.ob-nav .btn{flex:1}
.ob-nav .ghost{flex:0 0 auto;padding:16px 20px}