/* ============================================================
   MESA — estilos
   ============================================================ */
:root{
  --bg:#0f1115;
  --panel:#171a21;
  --panel-2:#1e222b;
  --line:#2a2f3a;
  --ink:#e7ebf3;
  --muted:#8b93a7;
  --brand:#4f7cff;
  --brand-2:#6a5cff;
  --ok:#28c76f;
  --warn:#ff9f43;
  --bad:#ea5455;
  --dot:#2b3140;
}

*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:'Segoe UI',system-ui,-apple-system,sans-serif;
  -webkit-user-select:none;user-select:none;
  overflow:hidden;
  touch-action:none;
}

/* ---------- Telas genericas ---------- */
.tela{position:fixed;inset:0;display:none;flex-direction:column}
.tela.ativa{display:flex}

/* ---------- Login ---------- */
#tela-login{align-items:center;justify-content:center;background:
  radial-gradient(1200px 600px at 50% -10%, #1a2033 0%, var(--bg) 60%);}
.card{
  background:var(--panel);border:1px solid var(--line);
  border-radius:18px;padding:38px 40px;width:min(420px,92vw);
  box-shadow:0 30px 80px rgba(0,0,0,.45);text-align:center;
}
.logo{font-size:34px;font-weight:800;letter-spacing:.5px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));
  -webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:6px}
.sub{color:var(--muted);font-size:14px;margin-bottom:26px;line-height:1.5}
input[type=text]{
  width:100%;padding:14px 16px;border-radius:12px;border:1px solid var(--line);
  background:var(--panel-2);color:var(--ink);font-size:16px;outline:none;
  -webkit-user-select:text;user-select:text;text-align:center;
}
input[type=text]:focus{border-color:var(--brand)}
.btn{
  cursor:pointer;border:none;border-radius:12px;padding:13px 20px;font-size:15px;
  font-weight:700;color:#fff;background:linear-gradient(90deg,var(--brand),var(--brand-2));
  transition:transform .08s,filter .15s;width:100%;margin-top:16px;
}
.btn:hover{filter:brightness(1.08)}
.btn:active{transform:translateY(1px)}
.btn.ghost{background:var(--panel-2);border:1px solid var(--line);color:var(--ink)}
.btn.sm{width:auto;padding:9px 16px;font-size:13px;margin:0}
.erro{color:var(--bad);font-size:13px;margin-top:12px;min-height:16px}

/* ---------- App de exercicios ---------- */
#topo{
  display:flex;align-items:center;gap:16px;padding:12px 18px;
  background:var(--panel);border-bottom:1px solid var(--line);z-index:5;
}
#topo .nome{font-weight:700}
#topo .passos{display:flex;gap:6px;flex:1;flex-wrap:wrap}
.passo{width:26px;height:8px;border-radius:6px;background:var(--line)}
.passo.feito{background:var(--ok)}
.passo.atual{background:var(--brand);box-shadow:0 0 0 3px rgba(79,124,255,.25)}

#palco{position:relative;flex:1;overflow:hidden}
canvas{position:absolute;inset:0;width:100%;height:100%;display:block}
#c-fundo{z-index:1}
#c-desenho{z-index:2;touch-action:none;cursor:crosshair}

/* Painel de instrucao (overlay) */
#instrucao{
  position:absolute;left:18px;top:18px;z-index:3;max-width:340px;
  background:rgba(23,26,33,.92);border:1px solid var(--line);border-radius:14px;
  padding:16px 18px;backdrop-filter:blur(6px);
}
#instrucao h3{margin:0 0 4px;font-size:16px}
#instrucao .ex-num{color:var(--brand);font-weight:800;font-size:12px;letter-spacing:1px}
#instrucao p{margin:8px 0 0;color:var(--muted);font-size:13px;line-height:1.5}
#instrucao .dica{margin-top:10px;font-size:12px;color:var(--warn)}

/* Barra de acoes inferior */
#acoes{
  position:absolute;left:50%;bottom:22px;transform:translateX(-50%);z-index:4;
  display:flex;gap:12px;align-items:center;
  background:rgba(23,26,33,.92);border:1px solid var(--line);border-radius:14px;
  padding:10px 14px;backdrop-filter:blur(6px);
}
#acoes .status{font-size:13px;color:var(--muted);min-width:120px;text-align:center}
.pill{font-size:12px;color:var(--muted);border:1px solid var(--line);
  border-radius:999px;padding:4px 10px}

/* ---------- Modal de nota ---------- */
#modal{position:fixed;inset:0;z-index:20;display:none;align-items:center;
  justify-content:center;background:rgba(6,8,12,.7)}
#modal.ativa{display:flex}
.modal-card{background:var(--panel);border:1px solid var(--line);border-radius:18px;
  padding:30px;width:min(420px,92vw);text-align:center;
  box-shadow:0 30px 80px rgba(0,0,0,.5)}
.nota-num{font-size:64px;font-weight:800;line-height:1}
.nota-label{color:var(--muted);font-size:13px;margin-top:6px;text-transform:uppercase;letter-spacing:1px}
.barra{height:10px;border-radius:6px;background:var(--panel-2);margin:18px 0;overflow:hidden}
.barra > i{display:block;height:100%;border-radius:6px}
.feedback{color:var(--muted);font-size:14px;line-height:1.5;margin-bottom:8px}

/* ---------- Resultado final ---------- */
#final .lista{max-width:520px;margin:0 auto;text-align:left}
.linha-nota{display:flex;align-items:center;gap:12px;padding:10px 0;border-bottom:1px solid var(--line)}
.linha-nota .lbl{flex:1;font-size:14px}
.linha-nota .mini{width:120px;height:8px;border-radius:5px;background:var(--panel-2);overflow:hidden}
.linha-nota .mini > i{display:block;height:100%}
.linha-nota .val{width:52px;text-align:right;font-weight:700}

/* ---------- Painel admin ---------- */
#admin{padding:0;background:var(--bg);overflow:auto}
.admin-topo{display:flex;align-items:center;gap:14px;padding:16px 24px;
  background:var(--panel);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:2}
.admin-topo h2{margin:0;font-size:18px}
.admin-wrap{padding:24px;max-width:1200px;margin:0 auto}
table{width:100%;border-collapse:collapse;font-size:13px}
th,td{padding:10px 8px;text-align:center;border-bottom:1px solid var(--line)}
th{color:var(--muted);font-weight:600;position:sticky;top:57px;background:var(--bg)}
td.nome-cel,th.nome-cel{text-align:left;font-weight:600}
.cel-nota{border-radius:6px;padding:3px 0;font-weight:700;font-size:12px}
.media-cel{font-weight:800}
.vazio{color:var(--muted);text-align:center;padding:40px}
.chip{font-size:11px;color:var(--muted)}
tr.clicavel{cursor:pointer}
tr.clicavel:hover td{background:var(--panel-2)}

.muted{color:var(--muted)}
.center{text-align:center}