:root {
    /* --- TEMA DARK (Por defecto) --- */
    --bg-main: #0f1214;
    --bg-gradient: radial-gradient(circle at top center, #1a2a3a 0%, #0f1214 80%);
    --text-main: #e0e0e0;
    --text-title: #ffffff;
    --text-subtitle: rgba(255, 255, 255, 0.7);
    --text-muted: #b0b0b0;
    --text-secondary: #a8b2bc;
    --text-label: rgba(255, 255, 255, 0.7);
    --card-bg: rgba(30, 35, 40, 0.8);
    --card-border: rgba(255, 255, 255, 0.1);
    --card-header-bg: rgba(255, 255, 255, 0.05);
    --input-bg: rgba(0, 0, 0, 0.3);
    --input-focus-bg: rgba(0, 0, 0, 0.5);
    --input-border: rgba(255, 255, 255, 0.15);
    --placeholder-color: rgba(255, 255, 255, 0.4);
    --cyan-primary: #00d2ff;
    --cyan-dark: #0055a4;
    --cyan-glow: rgba(0, 210, 255, 0.5);
    --modal-bg: #212529;
    --modal-border: rgba(255, 255, 255, 0.2);
    --shadow-color: rgba(0, 0, 0, 0.3);
    --code-color: #00ffcc;
    --code-bg: rgba(0, 0, 0, 0.3);
    --link-cyan: #00d2ff;
    --link-cyan-hover: #66e0ff;

    /* Badges */
    --badge-warning-bg: #9a7b1a;
    --badge-info-bg: #0a5a7c;
    --badge-success-bg: rgba(25, 135, 84, 0.9);
    --badge-text: #ffffff;

    /* Alerts */
    --alert-info-bg: rgba(0, 60, 100, 0.4);
    --alert-info-border: rgba(0, 100, 150, 0.5);

    /* Tables */
    --table-bg: transparent;
    --table-hover-bg: rgba(0, 210, 255, 0.25);
    --table-striped-bg: rgba(255, 255, 255, 0.05);

    /* DataTables */
    --dt-input-bg: rgba(0, 0, 0, 0.3);
    --dt-input-border: rgba(255, 255, 255, 0.2);
    --dt-page-bg: rgba(255, 255, 255, 0.05);
    --dt-page-border: rgba(255, 255, 255, 0.1);
    --dt-page-active-bg: #0055a4;

    /* Cards especiales */
    --info-box-bg: rgba(0, 85, 164, 0.15);
    --info-box-border: #0055a4;
    --linear-box-bg: rgba(0, 210, 255, 0.1);
    --linear-box-border: #00d2ff;
    --sqrt-box-bg: rgba(111, 66, 193, 0.15);
    --sqrt-box-border: #6f42c1;
    --power-box-bg: rgba(25, 135, 84, 0.15);
    --power-box-border: #198754;
    --calendar-box-bg: rgba(214, 158, 46, 0.1);
    --calendar-box-border: #d69e2e;
    --realistic-box-bg: linear-gradient(135deg, rgba(13, 110, 253, 0.2), rgba(25, 135, 84, 0.15));
    --realistic-box-border: rgba(13, 110, 253, 0.4);

    /* Colores de texto específicos */
    --color-purple: #b794f6;
    --color-calendar: #d69e2e;

    /* Login box */
    --login-box-bg: rgba(25, 135, 84, 0.2);
    --login-box-border: #198754;
}

[data-theme='light'] {
    /* --- TEMA LIGHT --- */
    --bg-main: #f8f9fa;
    --bg-gradient: radial-gradient(circle at top center, #e9ecef 0%, #f8f9fa 80%);
    --text-main: #212529;
    --text-title: #1a1d21;
    --text-subtitle: #495057;
    --text-muted: #495057;
    --text-secondary: #495057;
    --text-label: #212529;
    --card-bg: #ffffff;
    --card-border: #dee2e6;
    --card-header-bg: rgba(0, 0, 0, 0.03);
    --input-bg: #ffffff;
    --input-focus-bg: #ffffff;
    --input-border: #ced4da;
    --placeholder-color: #6c757d;
    --cyan-primary: #00768a;
    --cyan-dark: #003d5c;
    --cyan-glow: rgba(0, 118, 138, 0.2);
    --modal-bg: #ffffff;
    --modal-border: #dee2e6;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --code-color: #006060;
    --code-bg: rgba(0, 0, 0, 0.05);
    --link-cyan: #00768a;
    --link-cyan-hover: #005566;

    /* Badges */
    --badge-warning-bg: #ffc107;
    --badge-info-bg: #0d6efd;
    --badge-success-bg: #198754;
    --badge-text: #ffffff;

    /* Alerts */
    --alert-info-bg: #cff4fc;
    --alert-info-border: #9eeaf9;

    /* Tables */
    --table-bg: transparent;
    --table-hover-bg: rgba(0, 118, 138, 0.1);
    --table-striped-bg: rgba(0, 0, 0, 0.02);

    /* DataTables */
    --dt-input-bg: #ffffff;
    --dt-input-border: #ced4da;
    --dt-page-bg: #ffffff;
    --dt-page-border: #dee2e6;
    --dt-page-active-bg: #0d6efd;

    /* Cards especiales */
    --info-box-bg: rgba(0, 85, 164, 0.08);
    --info-box-border: #0055a4;
    --linear-box-bg: rgba(0, 118, 138, 0.08);
    --linear-box-border: #00768a;
    --sqrt-box-bg: rgba(111, 66, 193, 0.08);
    --sqrt-box-border: #6f42c1;
    --power-box-bg: rgba(25, 135, 84, 0.08);
    --power-box-border: #198754;
    --calendar-box-bg: rgba(214, 158, 46, 0.08);
    --calendar-box-border: #d69e2e;
    --realistic-box-bg: linear-gradient(135deg, rgba(13, 110, 253, 0.08), rgba(25, 135, 84, 0.08));
    --realistic-box-border: rgba(13, 110, 253, 0.3);

    /* Colores de texto específicos */
    --color-purple: #6f42c1;
    --color-calendar: #b5850a;

    /* Login box */
    --login-box-bg: rgba(25, 135, 84, 0.1);
    --login-box-border: #198754;
}

/* === ESTILOS BASE === */
body {
    background: var(--bg-gradient) !important;
    background-color: var(--bg-main) !important;
    color: var(--text-main);
}

/* === CABECERA HUD === */
.page-header-hud {
    border-left: 4px solid var(--cyan-primary);
    background: rgba(0, 85, 164, 0.1);
    padding: 1.5rem;
    border-radius: 0 12px 12px 0;
    margin-bottom: 2rem;
    backdrop-filter: blur(5px);
}

.page-title {
    color: var(--text-title);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    text-shadow: 0 0 10px var(--cyan-glow);
    margin: 0;
}

/* === TARJETAS GLASS === */
.card-glass {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    box-shadow: 0 10px 30px var(--shadow-color);
}

.card-header-glass {
    background: var(--card-header-bg);
    border-bottom: 1px solid var(--card-border);
    padding: 1rem 1.5rem;
    border-radius: 12px 12px 0 0;
}

.card-header-glass h5 {
    color: var(--cyan-primary);
    font-weight: 600;
    margin: 0;
}

/* === FORMULARIOS === */
.form-label {
    color: var(--text-label);
    font-weight: 500;
}

.form-control {
    background-color: var(--input-bg);
    border: 1px solid var(--input-border);
    color: var(--text-main);
}

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

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

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

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

/* Input fecha dark mode */
input[type="date"] {
    color-scheme: dark;
}

[data-theme='light'] input[type="date"] {
    color-scheme: light;
}

/* === BOTONES === */
.btn-primary {
    background-color: var(--cyan-dark);
    border-color: var(--cyan-dark);
    font-weight: 600;
}

.btn-primary:hover {
    background-color: #00448a;
    border-color: #003d7a;
}

/* === MODAL === */
.modal-content {
    background-color: var(--modal-bg);
    color: var(--text-main);
    border: 1px solid var(--modal-border);
}

.modal-header {
    border-bottom: 1px solid var(--card-border);
}

.modal-header .btn-close {
    filter: invert(1);
}

[data-theme='light'] .modal-header .btn-close {
    filter: none;
}

.modal-footer {
    border-top: 1px solid var(--card-border);
}

/* === TEXTOS === */
.text-muted {
    color: var(--text-muted) !important;
}

.small.text-muted,
p.text-muted {
    color: var(--text-secondary) !important;
}

code {
    color: var(--code-color) !important;
    background-color: var(--code-bg);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.85em;
}

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

.list-unstyled strong {
    color: var(--text-title);
}

.link-cyan {
    color: var(--link-cyan);
    text-decoration: none;
}

.link-cyan:hover {
    color: var(--link-cyan-hover);
    text-decoration: underline;
}

::placeholder {
    color: var(--placeholder-color) !important;
    opacity: 1;
}

/* === BADGES OVERRIDE === */
.content-wrapper .badge.bg-warning {
    background-color: var(--badge-warning-bg) !important;
    color: var(--badge-text) !important;
}

.content-wrapper .badge.bg-info {
    background-color: var(--badge-info-bg) !important;
    color: var(--badge-text) !important;
}

/* === ALERTS === */
.content-wrapper .alert-info {
    background-color: var(--alert-info-bg) !important;
    border-color: var(--alert-info-border) !important;
    color: var(--text-main) !important;
}

/* === DATATABLES OVERRIDES === */
.table-dark-custom {
    --bs-table-bg: var(--table-bg);
    --bs-table-color: var(--text-main);
    --bs-table-striped-bg: var(--table-striped-bg);
    --bs-table-hover-bg: var(--table-hover-bg);
    --bs-table-hover-color: var(--text-title);
    color: var(--text-main);
    border-color: var(--card-border);
}

.table-dark-custom td,
.table-dark-custom th {
    color: var(--text-main) !important;
}

.table-dark-custom tbody tr {
    cursor: pointer;
    transition: all 0.2s ease;
}

.table-dark-custom tbody tr:hover {
    background-color: var(--table-hover-bg) !important;
    box-shadow: inset 4px 0 0 0 var(--cyan-primary);
}

.table-dark-custom tbody tr:hover td {
    color: var(--text-title) !important;
}

/* Controles de DataTables */
.dataTables_wrapper .dataTables_length,
.dataTables_wrapper .dataTables_filter,
.dataTables_wrapper .dataTables_info,
.dataTables_wrapper .dataTables_processing,
.dataTables_wrapper .dataTables_paginate {
    color: var(--text-main) !important;
}

.dataTables_wrapper .dataTables_length select,
.dataTables_wrapper .dataTables_filter input {
    background-color: var(--dt-input-bg);
    border: 1px solid var(--dt-input-border);
    color: var(--text-main);
    padding: 4px 8px;
    border-radius: 4px;
}

/* Paginación */
.page-item.disabled .page-link {
    background-color: var(--dt-page-bg);
    border-color: var(--dt-page-border);
    color: var(--text-muted);
}

.page-item .page-link {
    background-color: var(--dt-page-bg);
    border-color: var(--dt-page-border);
    color: var(--text-main);
}

.page-item.active .page-link {
    background-color: var(--dt-page-active-bg);
    border-color: var(--dt-page-active-bg);
    color: white;
}

/* === COLLAPSE/ACCORDION === */
.collapse-indicator {
    transition: transform 0.3s ease;
}

[aria-expanded="true"] .collapse-indicator {
    transform: rotate(180deg);
}

.card-header-glass[data-bs-toggle="collapse"]:hover {
    background: rgba(255, 255, 255, 0.08);
}

[data-theme='light'] .card-header-glass[data-bs-toggle="collapse"]:hover {
    background: rgba(0, 0, 0, 0.05);
}

/* === CAJAS ESPECIALES (Modelos, Predicción) === */
.info-box {
    background: var(--info-box-bg);
    border-left: 4px solid var(--info-box-border);
    border-radius: 0 8px 8px 0;
}

.linear-box {
    background: var(--linear-box-bg);
    border-left: 4px solid var(--linear-box-border);
    border-radius: 0 8px 8px 0;
}

.sqrt-box {
    background: var(--sqrt-box-bg);
    border-left: 4px solid var(--sqrt-box-border);
    border-radius: 0 8px 8px 0;
}

.power-box {
    background: var(--power-box-bg);
    border-left: 4px solid var(--power-box-border);
    border-radius: 0 8px 8px 0;
}

.calendar-box {
    background: var(--calendar-box-bg);
    border-left: 4px solid var(--calendar-box-border);
    border-radius: 0 8px 8px 0;
}

.text-purple {
    color: var(--color-purple);
}

.text-calendar {
    color: var(--color-calendar);
}

/* === LOGIN BOX === */
.login-welcome-box {
    padding: 1rem;
    border-radius: 8px;
    background: var(--login-box-bg);
    border-left: 4px solid var(--login-box-border);
}

.login-welcome-title {
    color: #75b798;
}

[data-theme='light'] .login-welcome-title {
    color: #198754;
}

/* === THEME TOGGLE BUTTON === */
.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);
    border-color: var(--cyan-primary);
}

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

/* === GRÁFICA DE REGRESIÓN === */
.chart-container-soh {
    background: rgba(0, 0, 0, 0.4);
    border-radius: 12px;
    border: 1px solid var(--card-border);
}

[data-theme='light'] .chart-container-soh {
    background: #ffffff;
    border: 1px solid #dee2e6;
}

/* Título temático */
.tm-title {
    color: var(--text-title);
}

/* === ALERT DARK FORM === */
.form-alert-box {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--card-border);
}

[data-theme='light'] .form-alert-box {
    background: rgba(0, 0, 0, 0.03);
}

/* === CONFIDENCE BAR === */
.confidence-bar {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 10px;
    border: 1px solid var(--card-border);
}

[data-theme='light'] .confidence-bar {
    background: rgba(0, 0, 0, 0.05);
}

/* === METRICS COLLAPSE === */
.metrics-collapse-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--card-border);
    color: var(--text-muted);
}

[data-theme='light'] .metrics-collapse-btn {
    background: rgba(0, 0, 0, 0.03);
}

.metrics-content {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 8px;
    border: 1px solid var(--card-border);
}

[data-theme='light'] .metrics-content {
    background: rgba(0, 0, 0, 0.03);
}

/* === REALISTIC PROJECTION BOX === */
.realistic-projection-box {
    background: var(--realistic-box-bg);
    border-radius: 12px;
    border: 2px solid var(--realistic-box-border);
}

.realistic-soh-box {
    background: rgba(13, 110, 253, 0.15);
    border-radius: 8px;
    border: 1px solid rgba(13, 110, 253, 0.3);
}

.realistic-km-box {
    background: rgba(25, 135, 84, 0.15);
    border-radius: 8px;
    border: 1px solid rgba(25, 135, 84, 0.3);
}

[data-theme='light'] .realistic-soh-box {
    background: rgba(13, 110, 253, 0.08);
}

[data-theme='light'] .realistic-km-box {
    background: rgba(25, 135, 84, 0.08);
}

/* === DISCLAIMER BOX === */
.disclaimer-box {
    background: rgba(108, 117, 125, 0.15);
    border-radius: 6px;
}

[data-theme='light'] .disclaimer-box {
    background: rgba(108, 117, 125, 0.08);
}

/* === GUIDE MODAL ALERT === */
.guide-alert {
    background-color: rgba(30, 35, 40, 0.9) !important;
    border-color: #555 !important;
    color: #e0e0e0 !important;
}

[data-theme='light'] .guide-alert {
    background-color: #f8f9fa !important;
    border-color: #ced4da !important;
    color: #212529 !important;
}

/* === TOGGLE LEGEND LINES === */
.legend-line {
    display: inline-block;
    width: 20px;
    height: 3px;
    vertical-align: middle;
    margin-right: 5px;
}

.legend-dot {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    vertical-align: middle;
    margin-right: 5px;
}

/* === TEXTOS ESPECÍFICOS PARA MODO CLARO === */
[data-theme='light'] .content-wrapper .text-white {
    color: var(--text-title) !important;
}

[data-theme='light'] .content-wrapper .text-white-50 {
    color: var(--text-muted) !important;
}

[data-theme='light'] .content-wrapper .text-light {
    color: var(--text-main) !important;
}

[data-theme='light'] .content-wrapper .text-info {
    color: var(--cyan-primary) !important;
}

[data-theme='light'] .content-wrapper .text-success {
    color: #146c43 !important;
}

[data-theme='light'] .content-wrapper .text-warning {
    color: #997404 !important;
}

[data-theme='light'] .content-wrapper .text-danger {
    color: #b02a37 !important;
}

/* === BOTONES OUTLINE EN MODO LIGHT === */
[data-theme='light'] .content-wrapper .btn-outline-info {
    color: #055160 !important;
    border-color: #055160 !important;
}

[data-theme='light'] .content-wrapper .btn-outline-info:hover {
    background-color: #055160 !important;
    color: #ffffff !important;
}

[data-theme='light'] .content-wrapper .btn-outline-success {
    color: #146c43 !important;
    border-color: #146c43 !important;
}

[data-theme='light'] .content-wrapper .btn-outline-success:hover {
    background-color: #146c43 !important;
    color: #ffffff !important;
}

[data-theme='light'] .content-wrapper .btn-outline-warning {
    color: #997404 !important;
    border-color: #997404 !important;
}

[data-theme='light'] .content-wrapper .btn-outline-warning:hover {
    background-color: #997404 !important;
    color: #ffffff !important;
}

/* Tablas en modo claro */
[data-theme='light'] .table-dark-custom {
    --bs-table-bg: var(--table-bg);
    background-color: transparent !important;
}

[data-theme='light'] .table-dark-custom td,
[data-theme='light'] .table-dark-custom th {
    background-color: transparent !important;
}

[data-theme='light'] .table-dark {
    --bs-table-bg: var(--table-bg);
    --bs-table-color: var(--text-main);
    background-color: transparent !important;
    color: var(--text-main) !important;
}

[data-theme='light'] .table-dark td,
[data-theme='light'] .table-dark th,
[data-theme='light'] .table-dark thead th {
    background-color: transparent !important;
    color: var(--text-main) !important;
    border-color: var(--card-border) !important;
}

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

/* ============================================================================
   SOBRESCRITURA DE ESTILOS INLINE EN MODO LIGHT
   Estos estilos usan !important para ganar a los style="..." inline del JS
   ============================================================================ */

/* Fondos oscuros semitransparentes -> claros */
[data-theme='light'] .content-wrapper [style*="rgba(0,0,0,0."] {
    background: rgba(0, 0, 0, 0.03) !important;
}

[data-theme='light'] .content-wrapper [style*="rgba(0, 0, 0, 0."] {
    background: rgba(0, 0, 0, 0.03) !important;
}

/* Fondos de cajas de modelos */
[data-theme='light'] .content-wrapper [style*="rgba(0, 85, 164"] {
    background: rgba(0, 85, 164, 0.08) !important;
}

[data-theme='light'] .content-wrapper [style*="rgba(0, 210, 255"] {
    background: rgba(0, 118, 138, 0.08) !important;
}

[data-theme='light'] .content-wrapper [style*="rgba(111, 66, 193"] {
    background: rgba(111, 66, 193, 0.08) !important;
}

[data-theme='light'] .content-wrapper [style*="rgba(25, 135, 84"] {
    background: rgba(25, 135, 84, 0.08) !important;
}

[data-theme='light'] .content-wrapper [style*="rgba(214, 158, 46"] {
    background: rgba(214, 158, 46, 0.08) !important;
}

[data-theme='light'] .content-wrapper [style*="rgba(13, 110, 253"] {
    background: rgba(13, 110, 253, 0.08) !important;
}

[data-theme='light'] .content-wrapper [style*="rgba(13,110,253"] {
    background: rgba(13, 110, 253, 0.08) !important;
}

[data-theme='light'] .content-wrapper [style*="rgba(25,135,84"] {
    background: rgba(25, 135, 84, 0.08) !important;
}

[data-theme='light'] .content-wrapper [style*="rgba(108, 117, 125"] {
    background: rgba(108, 117, 125, 0.06) !important;
}

[data-theme='light'] .content-wrapper [style*="rgba(255,255,255,0.05"] {
    background: rgba(0, 0, 0, 0.03) !important;
}

/* Fondo de proyección realista (gradiente) */
[data-theme='light'] .content-wrapper [style*="linear-gradient(135deg"] {
    background: linear-gradient(135deg, rgba(13, 110, 253, 0.08), rgba(25, 135, 84, 0.08)) !important;
}

/* Bordes en modo light - más visibles */
[data-theme='light'] .content-wrapper [style*="border: 1px solid rgba(255,255,255"] {
    border-color: #dee2e6 !important;
}

[data-theme='light'] .content-wrapper [style*="border: 2px solid rgba(13,110,253"] {
    border-color: rgba(13, 110, 253, 0.4) !important;
}

/* Colores de texto inline */
[data-theme='light'] .content-wrapper [style*="color: #ccc"] {
    color: #495057 !important;
}

[data-theme='light'] .content-wrapper [style*="color: #b794f6"] {
    color: #6f42c1 !important;
}

[data-theme='light'] .content-wrapper [style*="color: #d69e2e"] {
    color: #b5850a !important;
}

/* Badge de confianza - mucho más suave en modo light con texto oscuro */
[data-theme='light'] .content-wrapper [style*="rgba(25, 135, 84, 0.9)"] {
    background: rgba(25, 135, 84, 0.2) !important;
}

[data-theme='light'] .content-wrapper [style*="rgba(25, 135, 84, 0.9)"] .text-white {
    color: #146c43 !important;
}

[data-theme='light'] .content-wrapper [style*="rgba(180, 130, 20, 0.95)"] {
    background: rgba(180, 130, 20, 0.2) !important;
}

[data-theme='light'] .content-wrapper [style*="rgba(180, 130, 20, 0.95)"] .text-white {
    color: #805a00 !important;
}

[data-theme='light'] .content-wrapper [style*="rgba(220, 53, 69, 0.9)"] {
    background: rgba(220, 53, 69, 0.2) !important;
}

[data-theme='light'] .content-wrapper [style*="rgba(220, 53, 69, 0.9)"] .text-white {
    color: #a52834 !important;
}

/* Leyenda de gráfica */
[data-theme='light'] .content-wrapper .small.text-white {
    color: var(--text-main) !important;
}