body {
    margin: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    font-family: Arial, sans-serif;
    color: #f5f5f5;
    background-color: #0d0d14;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 40px;
    background-color: #171727;
    border-bottom: 3px solid #8b5cf6;
    flex-wrap: wrap;
    gap: 15px;
}

header h1 {
    margin: 0;
    color: #c4b5fd;
    font-size: 1.5rem;
}

header p{
    margin: 0;
    color: #b8b8c7;
    font-size: 0.85rem;
}

header nav ul{
   display: flex;
    list-style: none;
    gap: 8px;
    margin: 0;
    padding: 0;
    flex-wrap: wrap;
    
}

header nav a{
    color: #b8b8c7;
    text-decoration: none;
    padding: 8px 14px;
    border-radius: 6px;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

header nav a:hover {
    background-color: #3f3f5a;
    color: #ffffff;
}

header nav a.active {
    background-color: #8b5cf6;
    color: #ffffff;
    font-weight: bold;
}

main {
    flex: 1;
    width: 100%;
    box-sizing: border-box;
    padding: 20px;
    max-width: 1000px;
    margin: 0 auto;
}

section {
    max-width: 1000px;
    margin: 0 auto 25px auto;
    padding: 20px;
    background-color: #191925;
    border: 1px solid #3f3f5a;
    border-left: 4px solid #8b5cf6;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.25);
}

h2 {
    color: #c4b5fd;
    margin-bottom: 20px;
}

footer {
    display: flex;
    justify-content: center;
    gap: 40px;
    align-items: center;
    padding: 20px;
    color: #b8b8c7;
    text-align: center;
    background-color: #171727;
    border-top: 1px solid #3f3f5a;
    margin-top: 40px;
    flex-wrap: wrap;
} 

footer p{
    margin: 0;
    font-size: 0.85rem;
}

/* ==================================================
   TEMA NEON GAMING - SOLO CAMBIOS VISUALES
   ================================================== */

:root {
    --neon-fondo: #050510;
    --neon-superficie: rgba(15, 15, 35, 0.92);
    --neon-superficie-clara: rgba(27, 27, 58, 0.92);
    --neon-morado: #9d4edd;
    --neon-violeta: #c77dff;
    --neon-cian: #00e5ff;
    --neon-azul: #4361ee;
    --neon-verde: #39ff88;
    --neon-rojo: #ff3d71;
    --neon-texto: #f4f1ff;
    --neon-secundario: #aaa6c3;
    --neon-borde: rgba(157, 78, 221, 0.55);
    --neon-sombra: 0 0 18px rgba(157, 78, 221, 0.22);
}

html {
    color-scheme: dark;
    scroll-behavior: smooth;
}

body {
    color: var(--neon-texto) !important;
    font-family: "Segoe UI", Arial, sans-serif !important;
    background:
        radial-gradient(circle at 15% 10%, rgba(157, 78, 221, 0.18), transparent 28%),
        radial-gradient(circle at 85% 85%, rgba(0, 229, 255, 0.12), transparent 30%),
        linear-gradient(135deg, #04040c 0%, #080816 45%, #050510 100%) !important;
    background-attachment: fixed !important;
}

::selection {
    color: #ffffff;
    background-color: var(--neon-morado);
}

/* Encabezado y pie de página */

header {
    background: linear-gradient(
        90deg,
        rgba(8, 8, 24, 0.98),
        rgba(25, 12, 48, 0.96)
    ) !important;
    border-bottom: 1px solid var(--neon-cian) !important;
    box-shadow:
        0 3px 20px rgba(0, 229, 255, 0.12),
        0 3px 28px rgba(157, 78, 221, 0.16) !important;
}

header h1,
.sidebar-logo h1 {
    color: var(--neon-cian) !important;
    letter-spacing: 1px;
    text-shadow:
        0 0 8px rgba(0, 229, 255, 0.7),
        0 0 20px rgba(0, 229, 255, 0.25);
}

header p,
header h4,
footer,
footer p {
    color: var(--neon-secundario) !important;
}

footer {
    background: rgba(7, 7, 22, 0.96) !important;
    border-top: 1px solid var(--neon-borde) !important;
    box-shadow: 0 -5px 22px rgba(157, 78, 221, 0.1);
}

/* Títulos */

h2,
section h3,
.titulo-resumen,
.tarjeta-equipo h3 {
    color: var(--neon-violeta) !important;
    letter-spacing: 0.5px;
    text-shadow: 0 0 12px rgba(199, 125, 255, 0.25);
}

/* Secciones, formularios y tarjetas */

section,
.login-card,
.tarjeta-metrica,
.tarjeta-admin,
.tarjeta-equipo,
.formulario-computador,
.formulario-cuenta,
.leyenda-estados,
#detalle-resumen {
    background: linear-gradient(
        145deg,
        rgba(20, 20, 47, 0.94),
        rgba(10, 10, 27, 0.96)
    ) !important;
    border-color: var(--neon-borde) !important;
    box-shadow:
        0 12px 30px rgba(0, 0, 0, 0.34),
        var(--neon-sombra) !important;
    backdrop-filter: blur(8px);
}

section {
    border-left: 4px solid var(--neon-morado) !important;
}

.login-card {
    border: 1px solid rgba(0, 229, 255, 0.55) !important;
    box-shadow:
        0 16px 40px rgba(0, 0, 0, 0.48),
        0 0 30px rgba(0, 229, 255, 0.1),
        0 0 25px rgba(157, 78, 221, 0.16) !important;
}

.tarjeta-metrica,
.tarjeta-admin,
.tarjeta-equipo,
.tarjeta-boton {
    transition:
        transform 0.22s ease,
        border-color 0.22s ease,
        box-shadow 0.22s ease !important;
}

.tarjeta-metrica:hover,
.tarjeta-admin:hover,
.tarjeta-equipo:hover,
.tarjeta-boton:hover {
    transform: translateY(-5px);
    border-color: var(--neon-cian) !important;
    box-shadow:
        0 16px 32px rgba(0, 0, 0, 0.42),
        0 0 20px rgba(0, 229, 255, 0.22),
        0 0 28px rgba(157, 78, 221, 0.18) !important;
}

.tarjeta-metrica .valor,
.tarjeta-metrica p {
    color: var(--neon-cian) !important;
    text-shadow: 0 0 15px rgba(0, 229, 255, 0.42) !important;
}

/* Barra lateral */

.sidebar {
    background:
        linear-gradient(
            180deg,
            rgba(14, 8, 32, 0.99),
            rgba(5, 5, 18, 0.99)
        ) !important;
    border-right: 1px solid var(--neon-morado) !important;
    box-shadow:
        7px 0 28px rgba(0, 0, 0, 0.4),
        4px 0 25px rgba(157, 78, 221, 0.15);
}

.sidebar-logo {
    border-bottom-color: var(--neon-borde) !important;
}

.sidebar-logo p,
.sidebar nav a {
    color: var(--neon-secundario) !important;
}

.sidebar nav a {
    border: 1px solid transparent;
    transition:
        color 0.2s ease,
        background-color 0.2s ease,
        border-color 0.2s ease,
        box-shadow 0.2s ease !important;
}

.sidebar nav a:hover {
    color: #ffffff !important;
    background: rgba(157, 78, 221, 0.16) !important;
    border-color: rgba(199, 125, 255, 0.4);
    box-shadow: inset 3px 0 0 var(--neon-cian);
}

.sidebar nav a.active {
    color: #ffffff !important;
    background: linear-gradient(
        90deg,
        rgba(157, 78, 221, 0.85),
        rgba(67, 97, 238, 0.75)
    ) !important;
    border-color: var(--neon-cian);
    box-shadow:
        0 0 15px rgba(157, 78, 221, 0.35),
        inset 3px 0 0 var(--neon-cian);
}

.sidebar-cerrar {
    border-top-color: var(--neon-borde) !important;
}

.sidebar-cerrar a:hover {
    background: rgba(255, 61, 113, 0.17) !important;
    box-shadow: inset 3px 0 0 var(--neon-rojo);
}

/* Campos y controles */

input,
select,
textarea {
    color: var(--neon-texto) !important;
    background: rgba(5, 5, 18, 0.88) !important;
    border: 1px solid rgba(157, 78, 221, 0.62) !important;
    box-shadow: inset 0 0 12px rgba(0, 0, 0, 0.35);
    transition:
        border-color 0.2s ease,
        box-shadow 0.2s ease,
        background-color 0.2s ease !important;
}

input::placeholder,
textarea::placeholder {
    color: #77738f !important;
}

input:focus,
select:focus,
textarea:focus {
    outline: none !important;
    border-color: var(--neon-cian) !important;
    background: rgba(8, 12, 28, 0.96) !important;
    box-shadow:
        0 0 0 2px rgba(0, 229, 255, 0.1),
        0 0 16px rgba(0, 229, 255, 0.22) !important;
}

label {
    color: #c7c3db !important;
}

/* Botones principales */

button:not(.boton-menu),
.button-login,
.btn-primario,
#boton-agregar-computador,
#boton-agregar-cuenta,
.boton-editar,
.boton-editar-cuenta {
    color: #ffffff !important;
    background: linear-gradient(
        135deg,
        var(--neon-morado),
        var(--neon-azul)
    ) !important;
    border: 1px solid rgba(199, 125, 255, 0.62) !important;
    box-shadow:
        0 0 12px rgba(157, 78, 221, 0.25),
        inset 0 0 10px rgba(255, 255, 255, 0.05);
    transition:
        transform 0.18s ease,
        box-shadow 0.18s ease,
        filter 0.18s ease !important;
}

button:not(.boton-menu):hover,
.button-login:hover,
.btn-primario:hover,
#boton-agregar-computador:hover,
#boton-agregar-cuenta:hover,
.boton-editar:hover,
.boton-editar-cuenta:hover {
    filter: brightness(1.15);
    transform: translateY(-2px);
    box-shadow:
        0 0 18px rgba(157, 78, 221, 0.48),
        0 0 12px rgba(0, 229, 255, 0.2) !important;
}

.boton-guardar {
    background: linear-gradient(135deg, #079455, #22c55e) !important;
    border-color: var(--neon-verde) !important;
    box-shadow: 0 0 12px rgba(57, 255, 136, 0.22) !important;
}

.boton-cancelar {
    background: linear-gradient(135deg, #4b5563, #6b7280) !important;
    border-color: #9ca3af !important;
}

.boton-eliminar,
.boton-eliminar-cuenta,
#btn-finalizar {
    background: linear-gradient(135deg, #be123c, var(--neon-rojo)) !important;
    border-color: #ff7597 !important;
    box-shadow: 0 0 12px rgba(255, 61, 113, 0.22) !important;
}

.btn-accion-historial {
    background: linear-gradient(135deg, #0891b2, var(--neon-cian)) !important;
    color: #031116 !important;
    border-color: var(--neon-cian) !important;
}

.boton-menu {
    background: linear-gradient(
        135deg,
        var(--neon-morado),
        var(--neon-azul)
    ) !important;
    border: 1px solid var(--neon-cian) !important;
    box-shadow: 0 0 16px rgba(0, 229, 255, 0.25);
}

/* Tablas */

table,
.tabla-computadores,
.tabla-cuentas {
    background: rgba(8, 8, 24, 0.72) !important;
    border: 1px solid var(--neon-borde);
    border-radius: 8px;
    overflow: hidden;
}

table th,
.tabla-computadores th,
.tabla-cuentas th {
    color: var(--neon-cian) !important;
    background: linear-gradient(
        90deg,
        rgba(41, 19, 77, 0.96),
        rgba(13, 28, 61, 0.96)
    ) !important;
    border-bottom-color: var(--neon-morado) !important;
    text-shadow: 0 0 8px rgba(0, 229, 255, 0.25);
}

table td,
.tabla-computadores td,
.tabla-cuentas td {
    color: var(--neon-texto) !important;
    border-bottom-color: rgba(157, 78, 221, 0.23) !important;
}

table tbody tr,
.tabla-computadores tbody tr,
.tabla-cuentas tbody tr {
    transition:
        background-color 0.18s ease,
        box-shadow 0.18s ease;
}

table tbody tr:hover,
.tabla-computadores tbody tr:hover,
.tabla-cuentas tbody tr:hover {
    background: rgba(157, 78, 221, 0.13) !important;
    box-shadow: inset 3px 0 0 var(--neon-cian);
}

/* Estados */

.punto-estado {
    box-shadow: 0 0 10px currentColor;
}

.punto-disponible,
.punto-activa {
    background-color: var(--neon-verde) !important;
    box-shadow: 0 0 11px rgba(57, 255, 136, 0.75);
}

.punto-ocupado {
    background-color: #ffd43b !important;
    box-shadow: 0 0 11px rgba(255, 212, 59, 0.75);
}

.punto-fuera-servicio,
.punto-inactiva {
    background-color: var(--neon-rojo) !important;
    box-shadow: 0 0 11px rgba(255, 61, 113, 0.75);
}

/* Accesibilidad visual */

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible {
    outline: 2px solid var(--neon-cian) !important;
    outline-offset: 3px;
}

/* Barra de desplazamiento */

* {
    scrollbar-width: thin;
    scrollbar-color: var(--neon-morado) var(--neon-fondo);
}

*::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

*::-webkit-scrollbar-track {
    background: var(--neon-fondo);
}

*::-webkit-scrollbar-thumb {
    background: linear-gradient(
        var(--neon-morado),
        var(--neon-cian)
    );
    border: 2px solid var(--neon-fondo);
    border-radius: 10px;
}

/* Animación sutil del logo */

@keyframes brilloLogo {
    from {
        text-shadow:
            0 0 7px rgba(0, 229, 255, 0.55),
            0 0 15px rgba(0, 229, 255, 0.18);
    }

    to {
        text-shadow:
            0 0 11px rgba(0, 229, 255, 0.9),
            0 0 25px rgba(157, 78, 221, 0.35);
    }
}

header h1,
.sidebar-logo h1 {
    animation: brilloLogo 2.4s ease-in-out infinite alternate;
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

@media (max-width: 600px) {
    section,
    .login-card {
        box-shadow:
            0 10px 24px rgba(0, 0, 0, 0.4),
            0 0 16px rgba(157, 78, 221, 0.13) !important;
    }

    .tarjeta-metrica:hover,
    .tarjeta-admin:hover,
    .tarjeta-equipo:hover {
        transform: none;
    }
}

button.boton-guardar {
    background: linear-gradient(135deg, #079455, #22c55e) !important;
    border-color: #39ff88 !important;
    box-shadow: 0 0 12px rgba(57, 255, 136, 0.22) !important;
}

button.boton-cancelar {
    background: linear-gradient(135deg, #374151, #6b7280) !important;
    border-color: #9ca3af !important;
    box-shadow: none !important;
}