:root{
  --bg:#05070d;
  --bg2:#0a0e1a;
  --ink:#e8eefc;
  --dim:#7b88a8;
  --line:rgba(120,150,220,.14);
  --glass:rgba(16,22,38,.62);
  --cyan:#22d3ee;
  --blue:#38bdf8;
  --violet:#818cf8;
  --green:#34d399;
  --amber:#f59e0b;
  --rose:#fb7185;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0;background:var(--bg);color:var(--ink);
  font-family:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  -webkit-font-smoothing:antialiased;overflow-x:hidden}
.hidden{display:none!important}
b,small,strong{font-variant-numeric:tabular-nums}

/* fondo futurista */
.aurora{position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    radial-gradient(60vmax 60vmax at 12% -5%, rgba(34,211,238,.16), transparent 60%),
    radial-gradient(50vmax 50vmax at 95% 8%, rgba(129,140,248,.16), transparent 60%),
    radial-gradient(60vmax 60vmax at 50% 115%, rgba(52,211,153,.10), transparent 60%),
    linear-gradient(180deg,var(--bg),var(--bg2))}
.grid{position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.25;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),
                   linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:44px 44px;
  mask-image:radial-gradient(70vmax 70vmax at 50% 30%,#000 40%,transparent 85%)}

#app{max-width:560px;margin:0 auto;padding:18px 16px 40px;min-height:100vh}

/* top */
.top{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.brand{display:flex;align-items:center;gap:12px}
.logo{font-size:30px;line-height:1;color:var(--cyan);
  filter:drop-shadow(0 0 10px rgba(34,211,238,.7));animation:spin 14s linear infinite}
.logo.big{font-size:56px;text-align:center;margin-bottom:6px}
@keyframes spin{to{transform:rotate(360deg)}}
.brand h1{margin:0;font-size:20px;letter-spacing:.42em;font-weight:700}
.brand p{margin:1px 0 0;font-size:10.5px;letter-spacing:.24em;text-transform:uppercase;color:var(--dim)}
.top-right{display:flex;align-items:center;gap:8px}
.pill{background:var(--glass);border:1px solid var(--line);border-radius:999px;
  padding:6px 12px;font-size:12.5px;color:var(--amber);backdrop-filter:blur(10px)}
.ghost{background:transparent;border:1px solid var(--line);color:var(--dim);
  width:34px;height:34px;border-radius:10px;font-size:15px;cursor:pointer}
.ghost:hover{color:var(--ink);border-color:var(--cyan)}

/* anillo principal */
.hero{position:relative;display:grid;place-items:center;margin:6px 0 8px}
.ring{transform:rotate(-90deg);grid-area:1/1}
.ring-main{width:min(74vw,290px);height:min(74vw,290px)}
.ring-track,.track{fill:none;stroke:rgba(120,150,220,.10);stroke-width:12}
.ring .prog{fill:none;stroke-width:12;stroke-linecap:round;
  stroke-dasharray:653.45;stroke-dashoffset:653.45;
  transition:stroke-dashoffset 1.1s cubic-bezier(.22,1,.36,1)}
.ring-mini .prog{stroke-dasharray:314.16;stroke-dashoffset:314.16;stroke-width:9;stroke-linecap:round;
  filter:drop-shadow(0 0 6px currentColor)}
.hero-center{grid-area:1/1;text-align:center;z-index:2}
.hero-value{font-size:52px;font-weight:750;letter-spacing:-.02em;line-height:1}
.hero-value small{font-size:20px;color:var(--dim);margin-left:3px;font-weight:500}
.hero-label{margin-top:6px;font-size:12.5px;color:var(--dim);letter-spacing:.06em}
.hero-sub{margin-top:8px;font-size:13px;color:var(--cyan);font-weight:600}

/* chips */
.chips{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin:14px 0 18px}
.chips button{background:linear-gradient(180deg,rgba(34,211,238,.14),rgba(34,211,238,.05));
  border:1px solid rgba(34,211,238,.30);color:var(--ink);border-radius:14px;
  padding:11px 4px;font-size:14px;font-weight:700;cursor:pointer;display:flex;
  flex-direction:column;align-items:center;gap:2px;transition:.16s}
.chips button i{font-style:normal;font-size:9.5px;color:var(--dim);letter-spacing:.04em}
.chips button:active{transform:scale(.94)}
.chips button:hover{border-color:var(--cyan);box-shadow:0 0 18px rgba(34,211,238,.25)}
.chips button.light{background:rgba(120,150,220,.06);border-color:var(--line)}
.chips button.light i{color:var(--dim)}

/* duo */
.duo{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:16px}
.card{position:relative;display:grid;place-items:center;background:var(--glass);
  border:1px solid var(--line);border-radius:20px;padding:12px;backdrop-filter:blur(12px)}
.ring-mini{width:min(34vw,132px);height:min(34vw,132px)}
.mini-center{grid-area:1/1;text-align:center}
.mini-ico{font-size:20px}
.mini-val{font-size:16px;font-weight:700;margin-top:1px}
.mini-label{font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--dim);margin-top:2px}
.card.on{border-color:rgba(52,211,153,.5);box-shadow:inset 0 0 30px rgba(52,211,153,.10)}
#cardStrength.on{border-color:rgba(245,158,11,.5);box-shadow:inset 0 0 30px rgba(245,158,11,.10)}

/* acciones */
.actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:16px}
.act{background:var(--glass);border:1px solid var(--line);color:var(--ink);
  border-radius:14px;padding:13px 10px;font-size:13px;font-weight:600;cursor:pointer;
  display:flex;align-items:center;gap:9px;transition:.16s}
.act span{font-size:17px}
.act:active{transform:scale(.97)}
.act:hover{border-color:var(--violet);box-shadow:0 0 16px rgba(129,140,248,.22)}
.act.on{border-color:var(--green);color:var(--green);background:rgba(52,211,153,.10)}

/* panels */
.panel{background:var(--glass);border:1px solid var(--line);border-radius:20px;
  padding:15px 16px;margin-bottom:14px;backdrop-filter:blur(12px)}
.panel-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:12px}
.panel-head h2{margin:0;font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--dim);font-weight:600}
.panel-meta{font-size:15px;font-weight:700}
.panel-foot{display:flex;justify-content:space-between;font-size:11.5px;color:var(--dim);margin-top:9px}

/* barra peso */
.bar{position:relative;height:12px;border-radius:999px;background:rgba(120,150,220,.12);overflow:hidden}
.bar-fill{height:100%;width:0;border-radius:999px;
  background:linear-gradient(90deg,var(--cyan),var(--violet),var(--green));
  box-shadow:0 0 16px rgba(129,140,248,.6);transition:width 1s cubic-bezier(.22,1,.36,1)}
.bar-start,.bar-goal{position:absolute;top:-22px;font-size:10px;color:var(--dim)}
.bar-start{left:0}.bar-goal{right:0}
#weightChart{width:100%;margin-top:8px;display:block}

/* historial */
.hist{display:flex;gap:5px;align-items:flex-end;height:64px}
.hist .col{flex:1;display:flex;flex-direction:column;justify-content:flex-end;height:100%;gap:3px}
.hist .bar2{width:100%;border-radius:5px 5px 3px 3px;background:rgba(120,150,220,.14);height:6%;
  transition:height .7s cubic-bezier(.22,1,.36,1)}
.hist .col.ok .bar2{background:linear-gradient(180deg,var(--cyan),var(--blue))}
.hist .col.part .bar2{background:linear-gradient(180deg,var(--violet),#6366f1)}
.hist .lbl{font-size:8.5px;color:var(--dim);text-align:center;letter-spacing:-.02em}

/* footer */
.foot{display:flex;gap:8px;justify-content:center;align-items:center;
  font-size:11px;color:var(--dim);margin-top:18px}
.foot .dot{opacity:.5}

/* login */
.login{position:fixed;inset:0;display:grid;place-items:center;padding:20px;
  background:radial-gradient(50vmax 50vmax at 50% 30%,rgba(34,211,238,.12),transparent 60%),var(--bg)}
.login-box{width:100%;max-width:340px;background:var(--glass);border:1px solid var(--line);
  border-radius:24px;padding:30px 24px;text-align:center;backdrop-filter:blur(16px)}
.login-box h1{margin:0;letter-spacing:.42em;font-size:20px;font-weight:700}
.login-box p{color:var(--dim);font-size:12.5px;margin:8px 0 20px}
.login-box input{width:100%;padding:13px 15px;border-radius:12px;border:1px solid var(--line);
  background:rgba(5,7,13,.7);color:var(--ink);font-size:15px;outline:none;text-align:center}
.login-box input:focus{border-color:var(--cyan);box-shadow:0 0 18px rgba(34,211,238,.25)}
.login-box button{width:100%;margin-top:12px;padding:13px;border:none;border-radius:12px;
  background:linear-gradient(90deg,var(--cyan),var(--violet));color:#03060c;font-weight:800;
  font-size:14px;letter-spacing:.06em;cursor:pointer}
.login-box button:active{transform:scale(.98)}
.login-err{color:var(--rose);font-size:12px;margin-top:10px;min-height:16px}

/* toast */
.toast{position:fixed;left:50%;bottom:22px;transform:translate(-50%,140%);
  background:rgba(10,14,26,.95);border:1px solid var(--cyan);color:var(--ink);
  padding:11px 18px;border-radius:14px;font-size:13px;font-weight:600;
  box-shadow:0 0 26px rgba(34,211,238,.35);transition:transform .35s cubic-bezier(.22,1,.36,1);z-index:50}
.toast.show{transform:translate(-50%,0)}

@media (max-width:360px){
  .brand h1{font-size:17px}
  .hero-value{font-size:44px}
}