:root{
  --bg:#F4F7FB; --card:#FFFFFF; --ink:#172033; --muted:#5B6478; --line:#E3E8F0; --chip:#D5DCE6;
  --blue:#2563EB; --blue-d:#1D4ED8; --blue-l:#DBEAFE;
  --amber:#F59E0B; --amber-d:#B45309; --amber-l:#FEF3C7;
  --green:#16A34A; --green-d:#15803D; --green-ink:#166534; --green-l:#DCFCE7;
  --red:#DC2626; --red-d:#B91C1C; --red-ink:#991B1B; --red-l:#FEE2E2;
  --yellow-l:#FEF9C3; --yellow-ink:#854D0E;
  --purple:#7C3AED; --purple-d:#5B21B6; --purple-l:#EDE9FE;
  --lock:#D9DEE7; --lock-d:#B9C1CF; --lock-ink:#6B7487;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;background:var(--bg);color:var(--ink);font-family:Nunito,system-ui,-apple-system,sans-serif;font-weight:700}
body{min-height:100vh;overscroll-behavior:none}
button{font-family:inherit;font-weight:800;color:inherit;cursor:pointer}
button:disabled{cursor:default}
#app{max-width:520px;margin:0 auto;min-height:100vh;display:flex;flex-direction:column}
.screen{flex:1;display:flex;flex-direction:column;min-height:100vh}
.pad{padding:16px 20px}
.row{display:flex;align-items:center;gap:10px}
.between{justify-content:space-between}
.col{display:flex;flex-direction:column;gap:12px}
.muted{color:var(--muted)}
.small{font-size:13px}
.h1{font-size:26px;font-weight:900;margin:0;line-height:1.2}
.h2{font-size:20px;font-weight:900;margin:0;line-height:1.25}
.kicker{font-size:12px;font-weight:900;letter-spacing:.08em;text-transform:uppercase}
.icon{width:24px;height:24px;flex-shrink:0}

/* topo */
.topbar{display:flex;align-items:center;justify-content:space-between;padding:16px 20px 8px}
.pill{display:flex;align-items:center;gap:8px;background:var(--card);border:2px solid var(--line);border-radius:999px;padding:5px 12px 5px 6px;font-size:14px;font-weight:800}
.lvl{width:28px;height:28px;border-radius:999px;background:var(--blue);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:900;font-size:14px}
.stat{display:flex;align-items:center;gap:4px;font-weight:900;font-size:17px}
.stat.fire{color:var(--amber-d)} .stat.xp{color:var(--blue-d)}

/* cartão da fase */
.phase{margin:4px 20px 0;background:var(--blue);border-radius:20px;padding:16px 18px;color:#fff;box-shadow:0 4px 0 var(--blue-d)}
.phase .kicker{color:var(--blue-l)} .phase .sub{color:var(--blue-l);font-size:13px}

/* trilha */
.path{display:flex;flex-direction:column;align-items:center;gap:16px;padding:26px 0 120px}
.node{display:flex;flex-direction:column;align-items:center;gap:5px;background:none;border:0;padding:0}
.bubble{width:66px;height:62px;border-radius:999px;display:flex;align-items:center;justify-content:center;border:0}
.bubble.done{background:var(--amber);box-shadow:0 5px 0 var(--amber-d)}
.bubble.today{width:86px;height:80px;background:var(--blue);box-shadow:0 6px 0 var(--blue-d),0 0 0 8px var(--blue-l)}
.bubble.todaydone{width:86px;height:80px;background:var(--green);box-shadow:0 6px 0 var(--green-d),0 0 0 8px var(--green-l)}
.bubble.locked{background:var(--lock);box-shadow:0 5px 0 var(--lock-d)}
.bubble.missed{background:#fff;border:3px dashed var(--chip)}
.bubble.boss{width:80px;height:74px;border-radius:22px;background:var(--purple);box-shadow:0 6px 0 var(--purple-d)}
.bubble.boss.locked{background:#C4B5FD;box-shadow:0 6px 0 #A78BFA}
.node .lbl{font-size:12px;font-weight:800;color:var(--muted)}
.node .lbl.strong{color:var(--ink);font-weight:900}
.flag{background:var(--card);border:2px solid var(--line);border-radius:12px;padding:6px 12px;font-weight:900;font-size:13px;color:var(--blue-d)}
.divider{display:flex;align-items:center;gap:12px;width:calc(100% - 40px);margin-top:8px}
.divider span{font-size:13px;font-weight:800;color:var(--muted);white-space:nowrap}
.divider i{flex:1;height:2px;background:var(--lock)}

/* navegação */
.nav{position:fixed;left:0;right:0;bottom:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));background:var(--card);border-top:2px solid var(--line);padding:6px 8px calc(10px + env(safe-area-inset-bottom))}
.nav button{background:none;border:0;display:flex;flex-direction:column;align-items:center;gap:2px;font-size:12px;color:var(--muted);padding:6px 0;min-height:52px}
.nav button.on{color:var(--blue-d);font-weight:900}

/* botões */
.btn{display:block;width:100%;border:0;border-radius:16px;padding:15px;font-size:17px;font-weight:900;letter-spacing:.04em;text-transform:uppercase;min-height:52px}
.btn.primary{background:var(--blue);color:#fff;box-shadow:0 4px 0 var(--blue-d)}
.btn.green{background:var(--green);color:#fff;box-shadow:0 4px 0 var(--green-d)}
.btn.red{background:var(--red);color:#fff;box-shadow:0 4px 0 var(--red-d)}
.btn.amber{background:var(--amber);color:#422006;box-shadow:0 4px 0 var(--amber-d)}
.btn.ghost{background:var(--card);color:var(--blue-d);border:2px solid var(--chip);box-shadow:0 4px 0 var(--chip)}
.btn:disabled{background:var(--lock);color:var(--lock-ink);box-shadow:none}
.btn:active:not(:disabled){transform:translateY(3px);box-shadow:none}
.link{background:none;border:0;color:var(--blue-d);font-size:15px;font-weight:800;padding:10px;display:inline-flex;align-items:center;gap:6px;min-height:44px}
.iconbtn{width:52px;height:52px;border-radius:16px;border:0;background:var(--blue);color:#fff;box-shadow:0 4px 0 var(--blue-d);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.iconbtn.soft{background:var(--card);color:var(--blue-d);border:2px solid var(--chip);box-shadow:0 3px 0 var(--chip)}
.iconbtn.rec{background:var(--red);box-shadow:0 4px 0 var(--red-d);animation:pulse 1.2s infinite}
@keyframes pulse{50%{box-shadow:0 4px 0 var(--red-d),0 0 0 8px var(--red-l)}}

/* lição */
.lessonbar{display:flex;align-items:center;gap:12px;padding:14px 16px 6px}
.close{width:44px;height:44px;border:0;background:none;color:var(--muted);display:flex;align-items:center;justify-content:center}
.progress{flex:1;height:16px;background:var(--line);border-radius:999px;overflow:hidden}
.progress>i{display:block;height:100%;background:var(--blue);border-radius:999px;transition:width .35s}
.xpchip{font-weight:900;color:var(--amber-d);font-size:15px;min-width:56px;text-align:right}
.body{flex:1;padding:12px 20px 20px;display:flex;flex-direction:column;gap:16px}
.footer{padding:12px 20px calc(18px + env(safe-area-inset-bottom))}
.card{background:var(--card);border:2px solid var(--line);border-radius:18px;padding:14px 16px}
.reading{font-size:18px;line-height:1.55;font-weight:700;white-space:pre-line}
.translation{background:var(--blue-l);border-radius:16px;padding:12px 14px;font-size:16px;line-height:1.5;white-space:pre-line}
.rich{font-size:16px;line-height:1.5;white-space:pre-line}
.rich blockquote{margin:8px 0;padding:8px 12px;background:var(--blue-l);border-radius:12px}
.rich code{background:var(--line);padding:1px 5px;border-radius:6px}
.bubbleq{background:var(--card);border:2px solid var(--line);border-radius:16px;padding:12px 16px;font-size:18px;font-weight:800}
textarea{width:100%;min-height:120px;border:2px solid var(--chip);border-radius:16px;padding:12px 14px;font:inherit;font-size:17px;font-weight:700;color:var(--ink);background:var(--card);resize:vertical}
textarea:focus{outline:none;border-color:var(--blue)}
.help{background:var(--yellow-l);border-radius:16px;padding:12px 14px;font-size:15px;line-height:1.45;color:#422006}
.help b{color:var(--yellow-ink)}

/* fichas */
.answer{display:flex;flex-wrap:wrap;gap:8px;min-height:110px;padding:12px 0;border-top:2px solid var(--line);border-bottom:2px solid var(--line);align-content:flex-start}
.bank{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}
.chip{background:var(--card);border:2px solid var(--chip);box-shadow:0 3px 0 var(--chip);border-radius:12px;padding:10px 14px;font-size:18px;font-weight:800;min-height:46px}
.chip.used{background:var(--line);border-color:var(--line);box-shadow:none;color:transparent}
.option{display:block;width:100%;text-align:left;background:var(--card);border:2px solid var(--chip);box-shadow:0 3px 0 var(--chip);border-radius:16px;padding:14px 16px;font-size:17px;min-height:52px}
.option.sel{border-color:var(--blue);background:var(--blue-l);box-shadow:0 3px 0 var(--blue)}
.option.right{border-color:var(--green);background:var(--green-l);box-shadow:0 3px 0 var(--green)}
.option.wrong{border-color:var(--red);background:var(--red-l);box-shadow:0 3px 0 var(--red)}
.pairs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.pairs .option{text-align:center;padding:12px 8px;font-size:16px}
.option.gone{opacity:.35;border-color:var(--green);background:var(--green-l)}
.option.flash{border-color:var(--red);background:var(--red-l)}
.big-ear{width:110px;height:100px;border-radius:28px;border:0;background:var(--blue);box-shadow:0 6px 0 var(--blue-d);color:#fff;display:flex;align-items:center;justify-content:center;align-self:center}

/* faixa de resultado */
.sheet{padding:18px 20px calc(22px + env(safe-area-inset-bottom));display:flex;flex-direction:column;gap:12px;animation:up .2s ease-out}
@keyframes up{from{transform:translateY(30px);opacity:0}}
.sheet.ok{background:var(--green-l);color:var(--green-ink)}
.sheet.almost{background:var(--yellow-l);color:var(--yellow-ink)}
.sheet.bad{background:var(--red-l);color:var(--red-ink)}
.sheet .title{font-size:22px;font-weight:900}
.sheet .fix{font-size:16px;font-weight:800}
.sheet .why{font-size:14px;font-weight:700}
.badge{width:44px;height:44px;border-radius:999px;display:flex;align-items:center;justify-content:center;flex-shrink:0}

/* fim / conquistas */
.trophy{width:96px;height:96px;border-radius:30px;background:var(--amber);box-shadow:0 6px 0 var(--amber-d);display:flex;align-items:center;justify-content:center;align-self:center}
.stats3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.statbox{border:2px solid;border-radius:16px;overflow:hidden;background:var(--card);text-align:center}
.statbox .t{font-size:11px;font-weight:900;padding:4px;letter-spacing:.06em}
.statbox .v{font-size:22px;font-weight:900;padding:10px 4px}
.bar{height:14px;background:var(--line);border-radius:999px;overflow:hidden}
.bar>i{display:block;height:100%;background:var(--blue);border-radius:999px}
.week{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:6px;text-align:center;font-size:12px;color:var(--muted)}
.week .d{width:30px;height:30px;border-radius:999px;background:var(--line);margin:4px auto 0}
.week .d.on{background:var(--amber)} .week .d.future{background:#fff;border:2px dashed var(--chip)}
.unlock{background:var(--purple-l);border-radius:18px;padding:12px 14px;display:flex;align-items:center;gap:12px;color:#3B0764}
.unlock .ic{width:48px;height:48px;border-radius:14px;background:var(--purple);display:flex;align-items:center;justify-content:center;font-size:24px;flex-shrink:0}
.medals{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.medal{background:var(--card);border:2px solid var(--line);border-radius:16px;padding:12px 6px;text-align:center;display:flex;flex-direction:column;gap:4px;align-items:center}
.medal .em{font-size:30px;line-height:1}
.medal.off .em{filter:grayscale(1);opacity:.35}
.medal .n{font-size:13px;font-weight:900}
.medal .s{font-size:11px;color:var(--muted);font-weight:700}
.corr{border-top:2px solid var(--line);padding-top:10px}
.strike{text-decoration:line-through;color:var(--red-ink)}
.spinner{width:42px;height:42px;border:5px solid var(--blue-l);border-top-color:var(--blue);border-radius:50%;animation:spin 1s linear infinite;align-self:center}
@keyframes spin{to{transform:rotate(360deg)}}
.center{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;padding:40px 24px;text-align:center}
#toast{position:fixed;left:50%;bottom:90px;transform:translateX(-50%);background:var(--ink);color:#fff;padding:10px 16px;border-radius:12px;font-size:14px;opacity:0;pointer-events:none;transition:opacity .2s;max-width:90%;text-align:center;z-index:9}
#toast.on{opacity:1}
.demo{background:var(--amber-l);color:#422006;font-size:12px;text-align:center;padding:6px}

/* texto da leitura nas perguntas */
.textbox{background:var(--card);border:2px solid var(--line);border-radius:18px;padding:10px 14px}
.textbox summary{font-weight:900;font-size:15px;color:var(--blue-d);cursor:pointer;min-height:32px;display:flex;align-items:center;list-style:none}
.textbox summary::-webkit-details-marker{display:none}
.textbox summary::after{content:"esconder";margin-left:auto;font-size:13px;color:var(--muted);font-weight:800}
.textbox:not([open]) summary::after{content:"mostrar"}
.textscroll{font-size:16px;line-height:1.5;max-height:34vh;overflow-y:auto;margin-top:6px;padding-right:4px}