:root {
    --bg: #0c1120;
    --sidebar-from: #131a2c;
    --sidebar-to: #0d1322;
    --panel: #141c30;
    --panel-alt: #1c2540;
    --text: #eef1f7;
    --text-dim: #97a1ba;
    --accent: #4f8cff;
    --accent-2: #7c5cff;
    --ok: #22c58f;
    --warn: #f2b93b;
    --info: #22b8c8;
    --danger: #ef5b5b;
    --border: #26304a;
    --radius: 14px;
    --sombra: 0 8px 24px rgba(4, 7, 16, .35);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); }

/* ---------------------------------------------------------------------- */
/* Layout general: barra lateral fija + contenido, solo con sesión activa */
/* ---------------------------------------------------------------------- */
.app-shell {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 240px;
    flex-shrink: 0;
    background: linear-gradient(180deg, var(--sidebar-from), var(--sidebar-to));
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    padding: 22px 16px;
    position: sticky;
    top: 0;
    height: 100vh;
}

.sidebar-marca {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 6px 22px 6px;
    margin-bottom: 14px;
    border-bottom: 1px solid var(--border);
}
.marca-icono {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: #fff;
    font-weight: 800;
    font-size: 0.72rem;
    letter-spacing: .02em;
    flex-shrink: 0;
    box-shadow: 0 4px 14px rgba(79, 140, 255, .35);
}
.marca-texto {
    font-weight: 700;
    font-size: 1rem;
    line-height: 1.25;
    display: flex;
    flex-direction: column;
}
.marca-texto small {
    font-weight: 500;
    font-size: 0.72rem;
    color: var(--text-dim);
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 3px;
    flex: 1;
}
.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-dim);
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 600;
    padding: 10px 12px;
    border-radius: 9px;
    border-left: 3px solid transparent;
    transition: background .15s ease, color .15s ease, border-color .15s ease;
}
.sidebar-nav a:hover { background: rgba(255,255,255,.05); color: var(--text); }
.sidebar-nav a.activo {
    background: rgba(255,255,255,.07);
    color: #fff;
}
.nav-punto {
    width: 8px;
    height: 8px;
    border-radius: 999px;
    flex-shrink: 0;
    box-shadow: 0 0 0 3px rgba(255,255,255,.05);
}

.sidebar-pie {
    border-top: 1px solid var(--border);
    padding-top: 14px;
    margin-top: 14px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}
.sidebar-salir {
    text-decoration: none;
    color: var(--text-dim);
    font-size: 0.85rem;
    font-weight: 600;
    padding: 6px 10px;
    border-radius: 8px;
    border: 1px solid var(--border);
    transition: background .15s ease, color .15s ease;
}
.sidebar-salir:hover { background: var(--panel-alt); color: var(--text); }

.app-cuerpo {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.topbar-slim {
    padding: 20px 32px;
    border-bottom: 1px solid var(--border);
    background: rgba(255,255,255,.015);
}
.topbar-slim h1 {
    margin: 0;
    font-size: 1.3rem;
    font-weight: 700;
    letter-spacing: -.01em;
}

.contenido { padding: 28px 32px 40px; max-width: 1180px; width: 100%; margin: 0 auto; flex: 1; }

.footer {
    padding: 16px 32px;
    color: var(--text-dim);
    font-size: 0.78rem;
    border-top: 1px solid var(--border);
}

/* ---------------------------------------------------------------------- */
/* Pantallas de login (sin sesión): layout centrado, sin barra lateral    */
/* ---------------------------------------------------------------------- */
.login-shell {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background:
        radial-gradient(1200px 600px at 15% -10%, rgba(79,140,255,.14), transparent),
        radial-gradient(1000px 500px at 110% 10%, rgba(124,92,255,.12), transparent),
        var(--bg);
}
.login-marca {
    font-weight: 800;
    font-size: 1.4rem;
    letter-spacing: -.01em;
    margin-bottom: 18px;
    background: linear-gradient(135deg, #fff, var(--text-dim));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.contenido-login { width: 100%; display: flex; align-items: center; justify-content: center; flex: none; }

/* ---------------------------------------------------------------------- */
/* Tarjetas, tablas y componentes comunes                                 */
/* ---------------------------------------------------------------------- */
.card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px 24px;
    margin-bottom: 22px;
    box-shadow: var(--sombra);
}
.card h2 {
    margin-top: 0;
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: -.005em;
}

table { width: 100%; border-collapse: collapse; }
th, td {
    text-align: left;
    padding: 11px 10px;
    border-bottom: 1px solid var(--border);
    font-size: 0.88rem;
}
th { color: var(--text-dim); font-weight: 700; text-transform: uppercase; font-size: 0.7rem; letter-spacing: .05em; }
tbody tr { transition: background .12s ease; }
tbody tr:hover { background: rgba(255,255,255,.025); }
td button, td .btn { margin: 2px 6px 2px 0; }
td button:last-child, td .btn:last-child { margin-right: 0; }

.badge { padding: 3px 11px; border-radius: 999px; font-size: 0.74rem; font-weight: 700; letter-spacing: .01em; }
.badge-pendiente { background: rgba(242,185,59,.16); color: var(--warn); }
.badge-aprobado, .badge-activo { background: rgba(34,197,143,.16); color: var(--ok); }
.badge-rechazado, .badge-suspendido, .badge-expirado { background: rgba(239,91,91,.16); color: var(--danger); }
.badge-demo { background: rgba(79,140,255,.16); color: var(--accent); }
.badge-aviso {
    display: inline-block;
    margin-left: 4px;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 0.7rem;
    font-weight: 700;
    background: rgba(242,185,59,.18);
    color: var(--warn);
    white-space: nowrap;
}

input, select, button, textarea {
    font-family: inherit;
    font-size: 0.95rem;
    padding: 9px 12px;
    border-radius: 9px;
    border: 1px solid var(--border);
    background: var(--panel-alt);
    color: var(--text);
}
input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(79,140,255,.18);
}

/* --- Botones con colores segun la accion, no todo en el mismo tono ------ */
button, .btn {
    background: var(--accent);
    border: none;
    color: #fff;
    cursor: pointer;
    font-weight: 700;
    letter-spacing: .005em;
    transition: filter .15s ease, transform .05s ease, box-shadow .15s ease;
}
button:hover, .btn:hover { filter: brightness(1.1); box-shadow: 0 4px 14px rgba(0,0,0,.25); }
button:active, .btn:active { transform: translateY(1px); }

/* .btn deja que un <a> se vea igual que un <button> (los <button> ya
   heredan el padding/radio de la regla de inputs de mas arriba). */
a.btn, a.secundario, a.exito, a.advertencia, a.info, a.peligro {
    display: inline-block;
    padding: 9px 12px;
    border-radius: 9px;
    text-decoration: none;
}

.secundario  { background: var(--panel-alt); border: 1px solid var(--border); color: var(--text); }
.exito        { background: var(--ok); color: #fff; }
.advertencia  { background: var(--warn); color: #241a02; }
.info         { background: var(--info); color: #fff; }
.peligro       { background: var(--danger); color: #fff; }

/* --- Menu "Accion" desplegable por fila (dispositivos del vendedor) ----- */
.menu-acciones {
    position: relative;
    display: inline-block;
}
.menu-lista {
    display: none;
    flex-direction: column;
    gap: 6px;
    position: absolute;
    right: 0;
    top: calc(100% + 6px);
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 8px;
    min-width: 170px;
    box-shadow: var(--sombra);
    z-index: 50;
}
.menu-lista.visible { display: flex; }
.menu-lista button, .menu-lista a.btn {
    width: 100%;
    text-align: left;
    font-size: 0.85rem;
    padding: 8px 10px;
}

.login-box {
    max-width: 380px;
    width: 100%;
    padding: 30px;
}

.form-fila { margin-bottom: 14px; display: flex; flex-direction: column; gap: 6px; }
.form-fila label { font-size: 0.82rem; font-weight: 600; color: var(--text-dim); }
.ayuda { color: var(--text-dim); font-size: 0.8rem; }
.error { color: var(--danger); font-size: 0.9rem; margin-bottom: 10px; }

.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 16px; }
.stat {
    background: var(--panel-alt);
    border-radius: 12px;
    padding: 16px 18px;
    border-left: 3px solid var(--accent);
    position: relative;
    overflow: hidden;
}
.stat::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, currentColor, transparent 60%);
    opacity: .06;
    pointer-events: none;
}
.stat .valor { font-size: 1.7rem; font-weight: 800; letter-spacing: -.01em; position: relative; }
.stat .etiqueta { color: var(--text-dim); font-size: 0.8rem; position: relative; }

/* Cada tile toma un color distinto del set, en orden, para que el resumen
   se vea vivo en vez de una fila plana del mismo tono. */
.stat:nth-of-type(5n+1) { border-left-color: var(--accent); color: var(--accent); }
.stat:nth-of-type(5n+2) { border-left-color: var(--info); color: var(--info); }
.stat:nth-of-type(5n+3) { border-left-color: var(--ok); color: var(--ok); }
.stat:nth-of-type(5n+4) { border-left-color: var(--warn); color: var(--warn); }
.stat:nth-of-type(5n+5) { border-left-color: var(--accent-2); color: var(--accent-2); }
.stat .valor, .stat .etiqueta { color: var(--text); }
.stat .etiqueta { color: var(--text-dim); }

/* --- Modal (ventana de detalle/edicion de un dispositivo, un DNS, etc.) - */
.modal-fondo {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(6,8,16,.65);
    align-items: center;
    justify-content: center;
    z-index: 100;
    padding: 16px;
}
.modal-fondo.visible { display: flex; }
.modal-caja {
    position: relative;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 26px;
    max-width: 440px;
    width: 100%;
    max-height: 88vh;
    overflow: auto;
    box-shadow: 0 24px 70px rgba(0,0,0,.55);
}
.modal-caja h3 { margin-top: 0; }
.modal-cerrar {
    position: absolute;
    top: 14px;
    right: 14px;
    background: var(--panel-alt);
    border: 1px solid var(--border);
    color: var(--text-dim);
    font-size: 1.1rem;
    line-height: 1;
    width: 30px;
    height: 30px;
    border-radius: 999px;
    cursor: pointer;
    padding: 0;
}

.rol-badge {
    font-size: 0.72rem;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: #fff;
    padding: 4px 10px;
    border-radius: 999px;
    font-weight: 700;
    white-space: nowrap;
}

/* ---------------------------------------------------------------------- */
/* Responsive: la barra lateral se convierte en una franja superior       */
/* ---------------------------------------------------------------------- */
@media (max-width: 820px) {
    .app-shell { flex-direction: column; }
    .sidebar {
        width: 100%;
        height: auto;
        position: static;
        flex-direction: row;
        align-items: center;
        flex-wrap: wrap;
        row-gap: 10px;
        column-gap: 16px;
        padding: 14px 16px;
    }
    .sidebar-marca { border-bottom: none; padding: 0; margin-bottom: 0; margin-right: auto; }
    .sidebar-nav { flex-direction: row; flex-wrap: wrap; flex: 1 1 100%; gap: 6px; order: 3; }
    .sidebar-nav a { white-space: nowrap; border-left: none; }
    .sidebar-pie { border-top: none; margin-top: 0; padding-top: 0; order: 2; }
    .contenido, .topbar-slim { padding-left: 18px; padding-right: 18px; }
}

@media (max-width: 480px) {
    .stat-grid { grid-template-columns: 1fr 1fr; }
}