/* Sistema de diseño — Impacto Digital
   Tokens tomados del panel existente para que las dos herramientas se vean como
   una sola: fondo #0A0A0A, tarjeta #121212, sidebar #1E1E1E, acento #EF4444. */

:root {
    --bg: #0a0a0a;
    --card: #121212;
    --sidebar: #1e1e1e;
    --borde: #2d2d2d;
    --borde-suave: #232323;
    --acento: #ef4444;
    --acento-hover: #dc2626;
    --acento-tenue: rgba(239, 68, 68, 0.12);
    --txt: #f5f5f5;
    --txt2: #a0a0a0;
    --txt3: #6b6b6b;
    --ok: #4ade80;
    --aviso: #fbbf24;
    --info: #60a5fa;

    --r: 10px;
    --r-sm: 7px;
    --sombra: 0 1px 3px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .3);
    --ancho-menu: 224px;

    font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;
    color-scheme: dark;
}

* { box-sizing: border-box; }

/* Cualquier clase con display propio (.aviso es flex) pisa el [hidden] del navegador.
   Sin esto, un elemento con hidden se sigue viendo. */
[hidden] { display: none !important; }

html, body { height: 100%; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--txt);
    font-size: 14px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

::selection { background: var(--acento-tenue); }

/* Scrollbar discreta: la del sistema en dark rompe la estética */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #2f2f2f; border-radius: 6px; border: 3px solid var(--bg); }
::-webkit-scrollbar-thumb:hover { background: #3d3d3d; }

/* ---------- barra lateral ---------- */

.menu {
    position: fixed;
    inset: 0 auto 0 0;
    width: var(--ancho-menu);
    background: var(--sidebar);
    border-right: 1px solid var(--borde);
    display: flex;
    flex-direction: column;
    padding: 1.25rem 0.75rem;
    z-index: 30;
}

.marca { display: flex; align-items: center; gap: .6rem; padding: 0 .5rem; margin-bottom: 1.75rem; }
.marca img { width: 34px; height: 34px; border-radius: 8px; }
.marca strong { font-size: 1rem; font-weight: 650; letter-spacing: -.015em; display: block; }
.marca strong span { color: var(--acento); }
.marca small { color: var(--txt2); font-size: .72rem; }

.nav { display: flex; flex-direction: column; gap: 2px; flex: 1; }

.nav a {
    display: flex; align-items: center; gap: .7rem;
    padding: .55rem .65rem;
    border-radius: var(--r-sm);
    color: var(--txt2);
    font-size: .875rem;
    transition: background .12s, color .12s;
}
.nav a:hover { background: rgba(255,255,255,.045); color: var(--txt); }
.nav a.activo { background: var(--acento-tenue); color: var(--acento); font-weight: 500; }
.nav svg { width: 18px; height: 18px; flex: none; }

.nav .contador {
    margin-left: auto; font-size: .68rem; font-variant-numeric: tabular-nums;
    background: rgba(255,255,255,.07); color: var(--txt2);
    padding: .05rem .4rem; border-radius: 99px;
}
.nav a.activo .contador { background: var(--acento-tenue); color: var(--acento); }

.pie-menu { border-top: 1px solid var(--borde); padding-top: .75rem; margin-top: .75rem; }
.pie-menu a {
    display: flex; align-items: center; gap: .7rem;
    padding: .5rem .65rem; border-radius: var(--r-sm);
    font-size: .85rem; transition: background .12s, color .12s;
}
.pie-menu a:hover { background: rgba(255,255,255,.045); color: var(--acento) !important; }
.pie-menu svg { width: 18px; height: 18px; flex: none; }
.usuario { display: flex; align-items: center; gap: .6rem; padding: .35rem .65rem .6rem; }
.avatar {
    width: 30px; height: 30px; border-radius: 50%; flex: none;
    background: var(--acento-tenue); color: var(--acento);
    display: grid; place-items: center; font-weight: 600; font-size: .78rem;
}
.usuario div { min-width: 0; }
.usuario b { display: block; font-size: .8rem; font-weight: 550; }
.usuario small { color: var(--txt3); font-size: .7rem; display: block;
                 overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ---------- contenido ---------- */

.principal { margin-left: var(--ancho-menu); padding: 1.75rem 2rem 4rem; }

.cabecera { display: flex; align-items: flex-start; gap: 1rem; margin-bottom: 1.5rem; flex-wrap: wrap; }
.cabecera h1 { font-size: 1.4rem; font-weight: 640; margin: 0 0 .15rem; letter-spacing: -.02em; }
.cabecera p { margin: 0; color: var(--txt2); font-size: .85rem; }
.cabecera .acciones { margin-left: auto; display: flex; gap: .5rem; align-items: center; }

/* ---------- tarjetas y métricas ---------- */

.tarjeta {
    background: var(--card);
    border: 1px solid var(--borde);
    border-radius: var(--r);
    overflow: hidden;
}
.tarjeta > header {
    padding: .85rem 1.1rem; border-bottom: 1px solid var(--borde-suave);
    display: flex; align-items: center; gap: .75rem;
}
.tarjeta > header h2 { font-size: .9rem; font-weight: 580; margin: 0; }
.tarjeta > header .sub { margin-left: auto; }

.rejilla { display: grid; gap: 1rem; }
.rejilla.metricas { grid-template-columns: repeat(auto-fit, minmax(165px, 1fr)); }
.rejilla.dos { grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); }

.metrica { background: var(--card); border: 1px solid var(--borde); border-radius: var(--r); padding: 1rem 1.1rem; }
.metrica .etiqueta { color: var(--txt2); font-size: .74rem; text-transform: uppercase;
                     letter-spacing: .06em; font-weight: 500; }
.metrica .valor { font-size: 1.75rem; font-weight: 620; letter-spacing: -.03em;
                  margin-top: .3rem; font-variant-numeric: tabular-nums; }
.metrica .nota { color: var(--txt3); font-size: .75rem; margin-top: .15rem; }
.metrica.destacada .valor { color: var(--acento); }

/* ---------- tablas ---------- */

.scroll-x { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: .845rem; }
th {
    text-align: left; font-weight: 500; color: var(--txt2);
    font-size: .7rem; text-transform: uppercase; letter-spacing: .055em;
    padding: .6rem 1.1rem; border-bottom: 1px solid var(--borde-suave);
    white-space: nowrap; background: var(--card);
}
td { padding: .7rem 1.1rem; border-bottom: 1px solid var(--borde-suave); vertical-align: middle; }
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover td { background: rgba(255,255,255,.017); }
td.num { font-variant-numeric: tabular-nums; }

.vacio { padding: 3rem 1rem; text-align: center; color: var(--txt3); font-size: .85rem; }

/* ---------- controles ---------- */

.btn {
    font: inherit; font-size: .8rem; font-weight: 500;
    padding: .4rem .8rem; border-radius: var(--r-sm);
    border: 1px solid var(--borde); background: #191919; color: var(--txt);
    cursor: pointer; transition: border-color .12s, background .12s;
    display: inline-flex; align-items: center; gap: .4rem; white-space: nowrap;
}
.btn:hover:not(:disabled) { border-color: #3d3d3d; background: #1f1f1f; }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn.primario { background: var(--acento); border-color: var(--acento); color: #fff; }
.btn.primario:hover:not(:disabled) { background: var(--acento-hover); border-color: var(--acento-hover); }
.btn.peligro:hover:not(:disabled) { border-color: var(--acento); color: var(--acento); }
.btn.chico { font-size: .74rem; padding: .25rem .55rem; }
.btn svg { width: 15px; height: 15px; }

input, select, textarea {
    font: inherit; font-size: .85rem;
    padding: .5rem .7rem; border-radius: var(--r-sm);
    border: 1px solid var(--borde); background: var(--bg); color: var(--txt);
    width: 100%; transition: border-color .12s, box-shadow .12s;
}
input:focus, select:focus, textarea:focus {
    outline: none; border-color: var(--acento);
    box-shadow: 0 0 0 3px var(--acento-tenue);
}
input::placeholder { color: var(--txt3); }
label { display: block; font-size: .78rem; color: var(--txt2); margin-bottom: .3rem; font-weight: 500; }
.campo { margin-bottom: .9rem; }
.fila-campos { display: flex; gap: .75rem; flex-wrap: wrap; }
.fila-campos > * { flex: 1; min-width: 150px; }

/* ---------- indicadores ---------- */

.chip {
    display: inline-flex; align-items: center; gap: .3rem;
    padding: .12rem .5rem; border-radius: 99px;
    font-size: .72rem; font-weight: 500;
    border: 1px solid currentColor; white-space: nowrap;
}
.chip::before { content: ''; width: 5px; height: 5px; border-radius: 50%; background: currentColor; }
.c-ok { color: var(--ok); } .c-mal { color: var(--acento); }
.c-aviso { color: var(--aviso); } .c-info { color: var(--info); } .c-off { color: var(--txt3); }

.barra { height: 4px; background: #262626; border-radius: 3px; overflow: hidden; width: 90px; }
.barra > i { display: block; height: 100%; background: var(--acento); border-radius: 3px; }

code, .mono { font-family: var(--mono); font-size: .8rem; }
code { background: #191919; padding: .1rem .35rem; border-radius: 4px; color: var(--txt2); }
.sub { color: var(--txt2); font-size: .78rem; }
.sub2 { color: var(--txt3); font-size: .74rem; }

/* ---------- gráfico ---------- */

.grafico { display: flex; align-items: flex-end; gap: 3px; height: 130px; padding: 1.1rem; }
.grafico .dia { flex: 1; display: flex; flex-direction: column; justify-content: flex-end;
                gap: 2px; height: 100%; position: relative; }
.grafico .b { border-radius: 2px 2px 0 0; transition: opacity .12s; }
.grafico .b[data-v="0"] { display: none; }
.grafico .b.out { background: var(--acento); }
.grafico .b.in { background: #3f6f8f; }
.grafico .dia:hover .b { opacity: .75; }
.leyenda { display: flex; gap: 1rem; padding: 0 1.1rem 1rem; font-size: .75rem; color: var(--txt2); }
.leyenda i { display: inline-block; width: 9px; height: 9px; border-radius: 2px; margin-right: .35rem; }

/* ---------- avisos ---------- */

.aviso {
    padding: .7rem .9rem; border-radius: var(--r-sm); font-size: .82rem;
    border: 1px solid; display: flex; gap: .55rem; align-items: flex-start;
}
.aviso.error { background: rgba(239,68,68,.08); border-color: rgba(239,68,68,.3); color: #fca5a5; }
.aviso.ok { background: rgba(74,222,128,.07); border-color: rgba(74,222,128,.25); color: #86efac; }
.aviso.info { background: rgba(96,165,250,.07); border-color: rgba(96,165,250,.25); color: #93c5fd; }

/* ---------- notificación flotante ---------- */

#avisos { position: fixed; bottom: 1.25rem; right: 1.25rem; z-index: 100;
          display: flex; flex-direction: column; gap: .5rem; }
.toast {
    background: var(--sidebar); border: 1px solid var(--borde); border-left: 3px solid var(--ok);
    border-radius: var(--r-sm); padding: .65rem .9rem; font-size: .83rem;
    box-shadow: var(--sombra); animation: entra .18s ease-out; max-width: 340px;
}
.toast.err { border-left-color: var(--acento); }
@keyframes entra { from { opacity: 0; transform: translateY(6px); } }

/* ---------- modal ---------- */

.fondo-modal {
    position: fixed; inset: 0; background: rgba(0,0,0,.7); z-index: 90;
    display: grid; place-items: center; padding: 1rem; backdrop-filter: blur(2px);
}
.modal { background: var(--card); border: 1px solid var(--borde); border-radius: var(--r);
         width: 100%; max-width: 430px; box-shadow: var(--sombra); }
.modal > header { padding: 1rem 1.2rem; border-bottom: 1px solid var(--borde-suave); }
.modal > header h2 { margin: 0; font-size: 1rem; font-weight: 600; }
.modal .cuerpo { padding: 1.2rem; }
.modal > footer { padding: .85rem 1.2rem; border-top: 1px solid var(--borde-suave);
                  display: flex; gap: .5rem; justify-content: flex-end; }

/* ---------- login ---------- */

.pantalla-login { min-height: 100vh; display: grid; place-items: center; padding: 1.5rem; }
.caja-login { width: 100%; max-width: 380px; }
.caja-login .tarjeta { padding: 2rem 1.75rem; box-shadow: var(--sombra); }
.caja-login .logo { width: 52px; height: 52px; border-radius: 12px; margin: 0 auto .9rem; display: block; }
.caja-login h1 { text-align: center; font-size: 1.3rem; font-weight: 640; margin: 0 0 .25rem;
                 letter-spacing: -.02em; }
.caja-login h1 span { color: var(--acento); }
.caja-login .bajada { text-align: center; color: var(--txt2); font-size: .84rem; margin: 0 0 1.5rem; }
.caja-login .pie { text-align: center; color: var(--txt3); font-size: .74rem; margin-top: 1.25rem; }

.clave-envoltorio { position: relative; }
.clave-envoltorio input { padding-right: 2.6rem; }
.ojo { position: absolute; right: .3rem; top: 50%; transform: translateY(-50%);
       background: none; border: none; color: var(--txt3); cursor: pointer;
       padding: .35rem; display: grid; place-items: center; border-radius: 5px; }
.ojo:hover { color: var(--txt2); }
.ojo svg { width: 17px; height: 17px; }

.fuerza { display: flex; gap: 3px; margin-top: .4rem; }
.fuerza i { height: 3px; flex: 1; background: #262626; border-radius: 2px; transition: background .18s; }

/* ---------- responsive ---------- */

@media (max-width: 860px) {
    .menu {
        inset: auto 0 0 0; width: auto; height: auto;
        flex-direction: row; padding: .35rem .5rem;
        border-right: none; border-top: 1px solid var(--borde);
        padding-bottom: calc(.35rem + env(safe-area-inset-bottom, 0px));
    }
    .marca, .pie-menu { display: none; }
    .nav { flex-direction: row; justify-content: space-around; width: 100%; }
    .nav a { flex-direction: column; gap: .15rem; font-size: .66rem; padding: .4rem .3rem; }
    .nav a span.txt { display: block; }
    .nav .contador { display: none; }
    .principal { margin-left: 0; padding: 1.25rem 1rem 5.5rem; }
    .cabecera h1 { font-size: 1.2rem; }
}