:root {
    /* --- TEMA DARK (Por defecto) --- */
    --bg-main: radial-gradient(circle at top center, #1a2a3a 0%, #0f1214 80%);
    --text-main: #e0e0e0;
    --text-title: #ffffff;
    --text-muted: rgba(255, 255, 255, 0.6);
    --card-bg: rgba(20, 25, 30, 0.8);
    --card-border: rgba(0, 210, 255, 0.3);
    --cyan-primary: #0dcaf0;
    --cyan-glow: rgba(0, 210, 255, 0.3);
    --search-bg: rgba(15, 20, 25, 0.95);
    --input-bg: rgba(0, 0, 0, 0.3);
    --input-border: rgba(255, 255, 255, 0.15);
    --accordion-bg: rgba(20, 25, 30, 0.6);
    --accordion-active-bg: rgba(0, 210, 255, 0.1);
    --blockquote-bg: rgba(0, 210, 255, 0.05);
    --shadow-color: rgba(0, 0, 0, 0.5);

    /* Alertas Dark */
    --alert-success-bg: rgba(25, 135, 84, 0.2);
    --alert-success-text: #75b798;
    --alert-success-border: #198754;
    --alert-danger-bg: rgba(220, 53, 69, 0.2);
    --alert-danger-text: #ea868f;
    --alert-danger-border: #dc3545;
    --alert-warning-bg: rgba(255, 193, 7, 0.2);
    --alert-warning-text: #ffda6a;
    --alert-warning-border: #ffc107;
    --alert-info-bg: rgba(13, 202, 240, 0.2);
    --alert-info-text: #0dcaf0;
    --alert-info-border: #0dcaf0;
}

[data-theme='light'] {
    /* --- TEMA LIGHT --- */
    --bg-main: #f8f9fa;
    --text-main: #212529;
    --text-title: #1a1d21;
    --text-muted: #6c757d;
    --card-bg: #ffffff;
    --card-border: #dee2e6;
    --cyan-primary: #00768a;
    --cyan-glow: transparent;
    --search-bg: rgba(255, 255, 255, 0.95);
    --input-bg: #ffffff;
    --input-border: #ced4da;
    --accordion-bg: #ffffff;
    --accordion-active-bg: rgba(0, 118, 138, 0.1);
    --blockquote-bg: rgba(0, 118, 138, 0.05);
    --shadow-color: rgba(0, 0, 0, 0.1);

    /* Alertas Light */
    --alert-success-bg: #d1e7dd;
    --alert-success-text: #0f5132;
    --alert-success-border: #badbcc;
    --alert-danger-bg: #f8d7da;
    --alert-danger-text: #842029;
    --alert-danger-border: #f5c2c7;
    --alert-warning-bg: #fff3cd;
    --alert-warning-text: #664d03;
    --alert-warning-border: #ffecb5;
    --alert-info-bg: #cff4fc;
    --alert-info-text: #055160;
    --alert-info-border: #b6effb;
}

body {
    background: var(--bg-main) !important;
    color: var(--text-main);
    min-height: 100vh;
    transition: background-color 0.3s ease, color 0.3s ease;
}

h1,
h2,
h3,
h4 {
    color: var(--text-title);
    text-shadow: 0 0 10px var(--cyan-glow);
}

[data-theme='light'] h1,
[data-theme='light'] h2,
[data-theme='light'] h3,
[data-theme='light'] h4 {
    text-shadow: none;
}

.text-muted {
    color: var(--text-muted) !important;
}

/* --- WRAPPER --- */
.content-wrapper {
    max-width: 1400px;
    margin: 0 auto;
}

/* --- TARJETAS TIPO HUD --- */
.tech-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    box-shadow: 0 0 20px var(--shadow-color);
    padding: 1.5rem;
    margin-bottom: 2rem;
}

/* --- BARRA DE BÚSQUEDA STICKY --- */
.herramientas-busqueda {
    position: sticky;
    top: 56px;
    background: var(--search-bg);
    border-bottom: 1px solid var(--cyan-primary);
    backdrop-filter: blur(10px);
    padding: 1.5rem 0;
    z-index: 100;
    box-shadow: 0 5px 20px var(--shadow-color);
    margin-bottom: 2rem;
}

.barra-busqueda {
    background-color: var(--input-bg) !important;
    border: 1px solid var(--card-border) !important;
    color: var(--text-main) !important;
    font-size: 1.1rem;
    padding: 0.75rem 1.25rem;
    border-radius: 0.5rem;
}

.barra-busqueda:focus {
    background-color: var(--input-bg) !important;
    border-color: var(--cyan-primary) !important;
    box-shadow: 0 0 15px var(--cyan-glow);
    color: var(--text-main) !important;
}

.barra-busqueda::placeholder {
    color: var(--text-muted);
    font-style: italic;
}

/* --- FORMULARIOS --- */
.form-control,
.form-select {
    background-color: var(--input-bg) !important;
    border: 1px solid var(--input-border) !important;
    color: var(--text-main) !important;
}

.form-control:focus,
.form-select:focus {
    background-color: var(--input-bg) !important;
    border-color: var(--cyan-primary) !important;
    box-shadow: 0 0 0 0.25rem var(--cyan-glow);
    color: var(--text-main) !important;
}

.form-select option {
    background-color: var(--card-bg);
    color: var(--text-main);
}

.form-label {
    color: var(--cyan-primary);
    font-weight: 600;
    font-size: 0.9rem;
}

.form-text {
    color: var(--text-muted) !important;
}

.form-control::placeholder {
    color: var(--text-muted);
}

.input-group-text {
    background-color: var(--input-bg) !important;
    border-color: var(--input-border) !important;
    color: var(--text-muted) !important;
}

/* --- BOTONES FILTRO --- */
.filtro-botones .btn {
    background: rgba(128, 128, 128, 0.1);
    border: 1px solid var(--card-border);
    color: var(--text-muted);
    font-weight: 500;
    margin: 0.25rem;
    border-radius: 2rem;
    transition: all 0.3s;
}

.filtro-botones .btn:hover {
    border-color: var(--cyan-primary);
    color: var(--text-main);
}

.filtro-botones .btn.active {
    background-color: var(--accordion-active-bg);
    border-color: var(--cyan-primary);
    color: var(--text-main);
    box-shadow: 0 0 10px var(--cyan-glow);
}

/* --- ACORDEÓN --- */
.ruido-grupo h2 {
    font-weight: 700;
    color: var(--cyan-primary);
    font-size: 1.5rem;
    padding-bottom: 0.5rem;
    margin-top: 1rem;
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--card-border);
}

.accordion-item {
    background-color: var(--accordion-bg);
    border: 1px solid var(--card-border);
    border-radius: 0.75rem !important;
    margin-bottom: 1rem;
    overflow: hidden;
}

.accordion-button {
    background-color: transparent;
    color: var(--text-main);
    font-weight: 600;
}

.accordion-button:not(.collapsed) {
    background-color: var(--accordion-active-bg);
    color: var(--cyan-primary);
    border-bottom: 1px solid var(--card-border);
}

.accordion-button::after {
    filter: invert(0.5);
}

[data-theme='dark'] .accordion-button::after {
    filter: invert(1) grayscale(100%) brightness(200%);
}

[data-theme='dark'] .accordion-button:not(.collapsed)::after {
    filter: invert(1) sepia(100%) saturate(1000%) hue-rotate(180deg) brightness(100%);
}

.accordion-body {
    background-color: rgba(0, 0, 0, 0.05);
    color: var(--text-main);
}

/* --- CONTENIDO RUIDO --- */
.blockquote {
    border-left: 4px solid var(--cyan-primary);
    padding: 1rem;
    background-color: var(--blockquote-bg);
    color: var(--text-main);
    font-style: italic;
    border-radius: 0 0.5rem 0.5rem 0;
}

.solucion-box {
    background-color: var(--alert-success-bg);
    border: 1px solid var(--alert-success-border);
    border-radius: 0.5rem;
    padding: 1rem;
    margin-top: 1rem;
    color: var(--alert-success-text);
}

/* --- ALERTAS HUD --- */
.alert-hud {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    border-left: 4px solid;
}

.alert-hud.alert-success {
    background: var(--alert-success-bg);
    color: var(--alert-success-text);
    border-color: var(--alert-success-border);
}

.alert-hud.alert-danger {
    background: var(--alert-danger-bg);
    color: var(--alert-danger-text);
    border-color: var(--alert-danger-border);
}

.alert-hud.alert-warning {
    background: var(--alert-warning-bg);
    color: var(--alert-warning-text);
    border-color: var(--alert-warning-border);
}

.alert-hud.alert-info {
    background: var(--alert-info-bg);
    color: var(--alert-info-text);
    border-color: var(--alert-info-border);
}

.btn-action {
    background: rgba(0, 85, 164, 0.6);
    border: 1px solid var(--cyan-primary);
    color: #fff;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 1px;
}

.btn-action:hover {
    background: var(--cyan-primary);
    color: #000;
    box-shadow: 0 0 15px var(--cyan-primary);
}

/* --- HELPERS --- */
.border-success-thick {
    border-left: 4px solid var(--alert-success-border) !important;
}

.border-info-thick {
    border-top: 4px solid var(--alert-info-border) !important;
}

.border-warning-thick {
    border-top: 4px solid var(--alert-warning-border) !important;
}

.bg-success-soft {
    background: var(--alert-success-bg) !important;
}

.bg-warning-soft {
    background: var(--alert-warning-bg) !important;
}

.text-success-custom {
    color: var(--alert-success-text) !important;
}

.text-info-custom {
    color: var(--alert-info-text) !important;
}

.text-warning-custom {
    color: var(--alert-warning-text) !important;
}

.max-w-1600 {
    max-width: 1600px !important;
}

.max-w-1200 {
    max-width: 1200px !important;
}

.bi-cyan {
    color: var(--cyan-primary);
}

.bi-success {
    color: var(--alert-success-border);
}

/* --- THEME TOGGLE --- */
.theme-toggle {
    position: fixed;
    top: 80px;
    right: 20px;
    width: 45px;
    height: 45px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 1000;
    box-shadow: 0 4px 15px var(--shadow-color);
    transition: all 0.3s ease;
}

.theme-toggle:hover {
    transform: scale(1.1);
}

.theme-toggle i {
    font-size: 1.2rem;
    color: var(--cyan-primary);
}

.keywords {
    display: none;
}

/* Ajustes para Tablas */
.table {
    color: var(--text-main);
}

.table-dark {
    background-color: var(--card-bg);
    --bs-table-bg: var(--card-bg);
    --bs-table-hover-bg: rgba(255, 255, 255, 0.05);
}

[data-theme='light'] .table-dark {
    background-color: #fff;
    --bs-table-bg: #fff;
    --bs-table-color: #212529;
    --bs-table-hover-bg: #f8f9fa;
    border-color: #dee2e6;
}

/* Protección del Header */
.navbar .container-fluid,
header .container-fluid,
nav .container-fluid {
    max-width: none !important;
    width: 100% !important;
}