/* ============================================================
   Easy4 Panel - Tema moderno (oscuro, tarjetas, degradados)
   ============================================================ */
:root {
    --bg:        #0b1220;
    --bg-alt:    #121a2b;
    --card:      #17203355;
    --card-solid:#17203a;
    --borde:     #2a3550;
    --texto:     #e6ebf5;
    --texto-sec: #93a1c0;
    --azul:      #3b82f6;
    --azul-2:    #6366f1;
    --verde:     #22c55e;
    --rojo:      #ef4444;
    --radio:     16px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: 'Inter', -apple-system, 'Segoe UI', Roboto, sans-serif;
    background:
        radial-gradient(1200px 600px at 10% -10%, #1e2a4a55, transparent),
        radial-gradient(1000px 500px at 110% 10%, #4338ca33, transparent),
        var(--bg);
    color: var(--texto);
    min-height: 100vh;
}

a { color: var(--azul); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- Cabecera ---------- */
header.panel-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 18px 28px;
    border-bottom: 1px solid var(--borde);
    backdrop-filter: blur(8px);
    position: sticky; top: 0; z-index: 10;
    background: #0b1220cc;
}
.marca {
    display: flex; align-items: center; gap: 10px;
    font-weight: 700; font-size: 1.15em; letter-spacing: -.02em;
}
.marca .punto {
    width: 10px; height: 10px; border-radius: 50%;
    background: linear-gradient(135deg, var(--azul), var(--azul-2));
    box-shadow: 0 0 14px 2px #3b82f688;
}
nav.panel-nav a {
    color: var(--texto-sec); margin-left: 22px; font-size: .92em; font-weight: 500;
}
nav.panel-nav a:hover { color: var(--texto); text-decoration: none; }

/* ---------- Contenedor ---------- */
.contenedor { max-width: 1080px; margin: 0 auto; padding: 40px 24px 80px; }
.contenedor.estrecho { max-width: 440px; padding-top: 80px; }

/* ---------- Tarjetas ---------- */
.tarjeta {
    background: linear-gradient(180deg, var(--card), var(--card-solid));
    border: 1px solid var(--borde);
    border-radius: var(--radio);
    padding: 28px;
    box-shadow: 0 10px 30px -12px #00000066;
}
.tarjeta + .tarjeta { margin-top: 20px; }

h1 { font-size: 1.6em; margin: 0 0 6px; letter-spacing: -.02em; }
h2 { font-size: 1.15em; margin: 0 0 16px; letter-spacing: -.01em; }
.subtitulo { color: var(--texto-sec); font-size: .95em; margin-bottom: 24px; }

/* ---------- Formularios ---------- */
label { display: block; font-size: .85em; color: var(--texto-sec); margin: 14px 0 6px; }
input[type=text], input[type=email], input[type=password] {
    width: 100%; padding: 12px 14px; font-size: .98em;
    background: #0b1220; border: 1px solid var(--borde); border-radius: 10px;
    color: var(--texto); outline: none; transition: border-color .15s;
}
input:focus { border-color: var(--azul); }

.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 12px 20px; border: none; border-radius: 10px;
    font-size: .95em; font-weight: 600; cursor: pointer;
    background: linear-gradient(135deg, var(--azul), var(--azul-2));
    color: #fff; transition: transform .1s, opacity .15s;
    width: 100%; margin-top: 22px;
}
.btn:hover { opacity: .92; }
.btn:active { transform: scale(.98); }
.btn.secundario {
    background: transparent; border: 1px solid var(--borde); color: var(--texto);
}
.btn.pequeno { width: auto; padding: 9px 16px; margin-top: 0; font-size: .88em; }

.error {
    background: #ef444422; border: 1px solid #ef444455; color: #fca5a5;
    padding: 10px 14px; border-radius: 10px; font-size: .88em; margin-bottom: 16px;
}
.exito {
    background: #22c55e22; border: 1px solid #22c55e55; color: #86efac;
    padding: 10px 14px; border-radius: 10px; font-size: .88em; margin-bottom: 16px;
}

.enlace-alt { text-align: center; margin-top: 18px; font-size: .9em; color: var(--texto-sec); }

/* ---------- Dashboard: grid de dispositivos ---------- */
.grid-dispositivos {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px; margin-top: 8px;
}
.dispositivo {
    background: var(--card-solid); border: 1px solid var(--borde);
    border-radius: var(--radio); padding: 22px;
}
.dispositivo-cabecera {
    display: flex; justify-content: space-between; align-items: center; margin-bottom: 4px;
}
.dispositivo-nombre { font-weight: 700; font-size: 1.05em; }
.badge {
    font-size: .72em; padding: 3px 10px; border-radius: 20px; font-weight: 600;
}
.badge.online  { background: #22c55e22; color: #86efac; }
.badge.offline { background: #94a3b822; color: #cbd5e1; }
.dispositivo-id { color: var(--texto-sec); font-size: .82em; margin-bottom: 18px; }

.grid-canales { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.btn-canal {
    padding: 16px 8px; border-radius: 12px; border: 1px solid var(--borde);
    background: #0b1220; color: var(--texto); font-weight: 600; font-size: .9em;
    cursor: pointer; transition: all .12s; text-align: center;
}
.btn-canal:hover { border-color: var(--azul); background: #0f1830; }
.btn-canal:active { transform: scale(.96); background: var(--azul); }
.btn-canal .icono { display: block; font-size: 1.4em; margin-bottom: 4px; }

.vacio {
    text-align: center; padding: 50px 20px; color: var(--texto-sec);
}
.vacio .icono-grande { font-size: 2.4em; margin-bottom: 10px; }

/* ---------- Dashboard: tarjeta como enlace ---------- */
.dispositivo-enlace {
    display: block; color: inherit; transition: border-color .15s, transform .1s;
}
.dispositivo-enlace:hover { text-decoration: none; border-color: var(--azul); }
.dispositivo-enlace:active { transform: scale(.99); }
.dispositivo-visto { font-size: .78em; color: var(--texto-sec); margin-bottom: 12px; }
.dispositivo-ver { font-size: .85em; color: var(--azul); font-weight: 600; }

/* ---------- Ficha de dispositivo: cabecera + pestañas ---------- */
.ficha-cabecera {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 24px;
}
.tabs {
    display: flex; gap: 6px; margin-bottom: 20px; border-bottom: 1px solid var(--borde);
}
.tab {
    background: none; border: none; color: var(--texto-sec); cursor: pointer;
    padding: 10px 16px; font-size: .92em; font-weight: 600; border-radius: 10px 10px 0 0;
    border-bottom: 2px solid transparent; margin-bottom: -1px; transition: all .12s;
}
.tab:hover { color: var(--texto); background: #ffffff08; }
.tab.activa { color: var(--texto); border-bottom-color: var(--azul); }
.panel-tab.oculto { display: none; }
.dato { display: flex; justify-content: space-between; font-size: .95em; }
.dato b { color: var(--azul); }

/* ---------- Panel de log por dispositivo ---------- */
.log-panel {
    background: #0b1220; border: 1px solid var(--borde); border-radius: 10px;
    padding: 10px 12px; max-height: 200px; overflow-y: auto;
}
.log-panel-grande { max-height: 480px; }
.log-vacio { color: var(--texto-sec); font-size: .85em; text-align: center; padding: 10px; }
.log-entry {
    font-size: .8em; padding: 6px 0; border-bottom: 1px solid #ffffff0a;
    display: flex; gap: 10px;
}
.log-entry:last-child { border-bottom: none; }
.log-entry .fecha { color: var(--texto-sec); white-space: nowrap; font-variant-numeric: tabular-nums; }
.log-entry .texto { color: var(--texto); word-break: break-word; }

footer.panel-footer {
    text-align: center; color: var(--texto-sec); font-size: .82em; padding: 30px;
}