/* ESTILOS. Colores y tema en las variables de :root (modo oscuro por defecto; el bloque @media claro cambia los valores).
   Para cambiar la imagen: --ok/--warn/--crit (estados), --comida/--agua/--peso (series), --acc (color de acento). */
:root{--bg:#0f1419;--panel:#171e26;--panel2:#1d2630;--line:#273240;--tx:#e6edf3;--mut:#8b9bab;
--ok:#4cc277;--warn:#f5a524;--crit:#ff5d5d;--comida:#f5a524;--agua:#3aa0ff;--peso:#4cc277;--acc:#4cc277}
@media (prefers-color-scheme:light){:root{--bg:#f3f5f7;--panel:#fff;--panel2:#f0f3f6;--line:#dde3ea;--tx:#17202a;--mut:#5f6f7f}}
*{box-sizing:border-box}html,body{height:100%}
body{margin:0;background:var(--bg);color:var(--tx);font:14px/1.45 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;display:flex}
.side{width:216px;flex:none;background:var(--panel);border-right:1px solid var(--line);display:flex;flex-direction:column;padding:16px 12px;position:sticky;top:0;height:100vh}
.brand{display:flex;gap:10px;align-items:center;padding:0 6px 16px}.brand .logo{font-size:28px}
.brand b{display:block;font-size:17px;letter-spacing:.5px}.brand small{color:var(--mut);font-size:11px}
nav{display:flex;flex-direction:column;gap:2px;flex:1}
nav a{display:flex;justify-content:space-between;align-items:center;padding:9px 10px;border-radius:8px;color:var(--mut);text-decoration:none;cursor:pointer}
nav a:hover{background:var(--panel2);color:var(--tx)}nav a.on{background:var(--panel2);color:var(--tx);box-shadow:inset 3px 0 var(--acc)}
nav .badge{background:var(--crit);color:#fff;border-radius:10px;font-size:11px;padding:0 7px;font-weight:600}
.side-foot{display:flex;flex-direction:column;gap:8px}
.status{display:flex;gap:8px;align-items:center;color:var(--mut);font-size:12px}.status i{width:8px;height:8px;border-radius:50%;background:var(--warn)}
.status.ok i{background:var(--ok)}.status.err i{background:var(--crit)}
main{flex:1;min-width:0;padding:20px 26px 40px}
.top{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}.top h1{margin:0;font-size:22px}.top-r{display:flex;gap:12px;align-items:center}
.muted{color:var(--mut);font-size:12px}
.btn{background:var(--panel2);color:var(--tx);border:1px solid var(--line);border-radius:8px;padding:7px 12px;font:inherit;cursor:pointer}
.btn:hover{border-color:var(--acc)}.btn.primary{background:var(--acc);color:#07140c;border-color:var(--acc);font-weight:600}.btn.ghost{background:transparent}
.btn:disabled{opacity:.5;cursor:default}
.grid{display:grid;gap:14px}.kpis{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));margin-bottom:14px}
.g2{grid-template-columns:repeat(auto-fit,minmax(380px,1fr));margin-bottom:14px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:14px 16px;min-width:0}
.card h3{margin:0 0 10px;font-size:13px;color:var(--mut);font-weight:600;text-transform:uppercase;letter-spacing:.5px}
.kpi .v{font-size:28px;font-weight:700;line-height:1.1}.kpi .l{color:var(--mut);font-size:12px;margin-top:4px}
.kpi.crit .v{color:var(--crit)}.kpi.warn .v{color:var(--warn)}.kpi.good .v{color:var(--ok)}
table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:7px 8px;border-bottom:1px solid var(--line);white-space:nowrap}
th{color:var(--mut);font-weight:600;font-size:12px}tr:last-child td{border-bottom:0}
tbody tr.click{cursor:pointer}tbody tr.click:hover{background:var(--panel2)}
.tw{overflow-x:auto}.r{text-align:right}
.pill{display:inline-block;padding:1px 9px;border-radius:10px;font-size:12px;font-weight:600}
.pill.critica{background:#ff5d5d26;color:var(--crit)}.pill.atencion{background:#f5a52426;color:var(--warn)}.pill.ok{background:#4cc27722;color:var(--ok)}
.bar{height:8px;background:var(--panel2);border-radius:4px;min-width:80px;overflow:hidden}.bar i{display:block;height:100%;border-radius:4px}
.legend{display:flex;gap:14px;margin-bottom:6px;font-size:12px;color:var(--mut)}.legend i{display:inline-block;width:10px;height:10px;border-radius:2px;margin-right:5px}
svg.chart{width:100%;height:auto;display:block}svg.chart text{fill:var(--mut);font-size:11px}svg.chart .gl{stroke:var(--line)}
.empty{text-align:center;padding:50px 20px;color:var(--mut)}.empty h2{color:var(--tx)}
label{display:block;font-size:12px;color:var(--mut);margin:10px 0 4px}
input,select{background:var(--panel2);color:var(--tx);border:1px solid var(--line);border-radius:8px;padding:8px 10px;font:inherit;width:100%;max-width:340px}
code,pre{background:var(--panel2);border-radius:6px;font-size:12px}pre{padding:10px;overflow:auto}code{padding:1px 5px}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
@media (max-width:760px){body{flex-direction:column}.side{width:100%;height:auto;position:static;flex-direction:row;flex-wrap:wrap;padding:10px}
nav{flex-direction:row;flex-wrap:wrap;flex:none;width:100%}.side-foot{display:none}main{padding:14px}.g2{grid-template-columns:1fr}}
.banner{border-color:var(--warn);background:#f5a52414;margin-bottom:14px}.banner a{color:var(--acc)}
.med{cursor:help}small.muted{display:block}

/* ── Pantallas: login, inicio con cromos de granjas, dashboard ── */
.screen{width:100%;min-height:100vh}.screen[hidden],#app[hidden]{display:none}
#app{display:flex;width:100%;min-height:100vh}
.login-box{max-width:400px;margin:8vh auto 0;padding:28px 26px;text-align:center}.login-box form{text-align:left}.login-box input{max-width:none}
.login-logo{font-size:44px}.login-box h1{margin:0;font-size:26px;letter-spacing:1px}.lerr{color:var(--crit);font-size:13px;min-height:18px;margin-top:8px}
#login{padding:0 14px}
.demo-users{margin-top:22px;border-top:1px solid var(--line);padding-top:12px;display:grid;gap:8px}.demo-users p{margin:0}
.demo-users .btn{display:flex;justify-content:space-between;align-items:center;text-align:left}
.home-top{display:flex;justify-content:space-between;align-items:center;padding:12px 26px;border-bottom:1px solid var(--line);background:var(--panel)}
.home-top .brand{padding:0}.home-main{padding:22px 26px 50px;max-width:1280px;margin:0 auto;display:block}.home-main h1{margin:0 0 2px;font-size:24px}
.who-chip{font-weight:600}
.farms{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:14px}
.farm{all:unset;box-sizing:border-box;cursor:pointer;display:flex;flex-direction:column;gap:14px;background:var(--panel);border:1px solid var(--line);border-left:5px solid var(--ok);border-radius:14px;padding:16px;transition:transform .12s,border-color .12s}
.farm:hover,.farm:focus-visible{transform:translateY(-3px);border-color:var(--acc)}
.farm.critica{border-left-color:var(--crit)}.farm.atencion{border-left-color:var(--warn)}
.farm-h{display:flex;justify-content:space-between;gap:10px;align-items:flex-start}.farm-h b{font-size:16px;display:block}
.farm-k{display:flex;flex-direction:column}.farm-k .big{font-size:40px;font-weight:700;line-height:1}.farm-k .l{color:var(--mut);font-size:12px;margin-top:4px}
.farm-k.crit .big{color:var(--crit)}.farm-k.warn .big{color:var(--warn)}.farm-k.good .big{color:var(--ok)}
.farm-f{display:flex;flex-wrap:wrap;gap:6px}.chip{background:var(--panel2);border:1px solid var(--line);border-radius:10px;padding:2px 9px;font-size:12px;color:var(--mut)}
.who{padding:0 6px 12px;border-bottom:1px solid var(--line);margin-bottom:10px;display:flex;flex-direction:column;gap:2px}.who b{font-size:14px}
.who .back{margin-top:6px;color:var(--acc);text-decoration:none;font-size:13px}.who .back:hover{text-decoration:underline}
.who-u{display:flex;justify-content:space-between;align-items:center;font-size:13px;padding:0 6px 10px}.who-u small{display:block}
@media (max-width:760px){#app{flex-direction:column}.home-top,.home-main{padding-left:14px;padding-right:14px}.who{display:flex;flex-direction:row;gap:10px;align-items:baseline;flex-wrap:wrap;border:0;margin:0}.who-u{display:none}}