: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-muted: rgba(255, 255, 255, 0.5);
    --card-bg: rgba(20, 25, 30, 0.85);
    --card-border: rgba(0, 210, 255, 0.3);
    --card-shadow: 0 15px 35px rgba(0, 0, 0, 0.5), 0 0 20px rgba(0, 210, 255, 0.1);
    --cyan-primary: #0dcaf0;
    --cyan-hover: #00d2ff;
    --cyan-glow: rgba(0, 210, 255, 0.4);
    --accent-green: #10b981;
    --accent-orange: #f97316;
    --accent-warning: #ffc107;
    --accent-danger: #dc3545;
    --grid-color: rgba(255, 255, 255, 0.05);
    --accordion-bg: rgba(25, 30, 35, 0.4);
    --accordion-header-bg: rgba(0, 210, 255, 0.05);
    --table-header-bg: rgba(0, 210, 255, 0.15);
    --table-row-hover: rgba(0, 210, 255, 0.05);
    --input-bg: #2c3036;
    --input-border: #495057;
    --shadow-color: rgba(0, 0, 0, 0.5);
    --modal-bg: #141619;
    --modal-border: rgba(255, 255, 255, 0.1);
    --cyan-soft: rgba(0, 210, 255, 0.1);
    --warning-soft: rgba(255, 193, 7, 0.15);
    --orange-soft: rgba(249, 115, 22, 0.08);
    --form-placeholder: #6c757d;
}

[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-muted: #495057;
    --card-bg: #ffffff;
    --card-border: rgba(0, 0, 0, 0.1);
    --card-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    --cyan-primary: #00768a;
    --cyan-hover: #005a6a;
    --cyan-glow: transparent;
    --accent-green: #0d8a5e;
    --accent-orange: #c2410c;
    --accent-warning: #92400e;
    --accent-danger: #a94442;
    --grid-color: rgba(0, 0, 0, 0.1);
    --accordion-bg: #ffffff;
    --accordion-header-bg: rgba(0, 118, 138, 0.05);
    --table-header-bg: rgba(0, 118, 138, 0.1);
    --table-row-hover: rgba(0, 118, 138, 0.03);
    --input-bg: #ffffff;
    --input-border: #ced4da;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --modal-bg: #ffffff;
    --modal-border: rgba(0, 0, 0, 0.1);
    --cyan-soft: rgba(0, 118, 138, 0.1);
    --warning-soft: rgba(133, 100, 4, 0.1);
    --orange-soft: rgba(194, 65, 12, 0.1);
    --form-placeholder: #495057;
}

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

.main-hud-container {
    max-width: 1600px;
    margin: 0 auto;
}

/* --- HUD TITLES --- */
.hud-title {
    color: var(--text-title);
    font-weight: 800;
}

.hud-title i {
    color: var(--cyan-primary) !important;
}

/* --- CARDS --- */
.data-card {
    background: var(--card-bg) !important;
    border: 1px solid var(--card-border) !important;
    border-radius: 20px;
    box-shadow: var(--card-shadow) !important;
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

[data-theme='light'] .data-card {
    border: 1px solid rgba(0, 0, 0, 0.05) !important;
}

.data-card-header {
    background: rgba(0, 0, 0, 0.05);
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--card-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* --- DROP ZONE --- */
.drop-zone {
    border: 2px dashed var(--card-border);
    border-radius: 20px;
    padding: 60px 40px;
    text-align: center;
    background: var(--accordion-bg);
    backdrop-filter: blur(10px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    margin: 2rem 0;
    position: relative;
    overflow: hidden;
}

.drop-zone:hover,
.drop-zone.dragover {
    background: var(--cyan-soft) !important;
    border-color: var(--cyan-primary) !important;
    box-shadow: 0 0 20px var(--cyan-glow) !important;
    transform: scale(1.01);
}

.drop-zone i {
    font-size: 4rem;
    color: var(--cyan-primary);
    margin-bottom: 1.5rem;
    display: block;
    text-shadow: 0 0 15px var(--cyan-glow);
}

[data-theme='light'] .drop-zone i {
    text-shadow: none;
}

.drop-zone h4,
.drop-zone h5 {
    font-weight: 700;
    color: var(--text-title);
}

/* --- STATS GRID --- */
.hud-stats-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: 1rem;
    margin-bottom: 2rem;
}

@media (min-width: 576px) {
    .hud-stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 900px) {
    .hud-stats-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1400px) {
    .hud-stats-grid {
        grid-template-columns: repeat(7, 1fr) !important;
    }
}

.hud-stat-box {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-left: 4px solid var(--cyan-primary);
    border-radius: 12px;
    padding: 1rem;
    text-align: left;
    transition: all 0.3s ease;
    min-width: 0;
}

.hud-stat-box:hover {
    transform: translateY(-5px);
    border-color: var(--cyan-primary);
    background: var(--cyan-soft);
}

.hud-stat-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-title);
    line-height: 1.2;
    font-family: 'Roboto', sans-serif;
}

[data-theme='light'] .hud-stat-value {
    color: #000;
}

.hud-stat-label {
    color: var(--cyan-primary);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 1.5px;
    font-weight: 600;
    margin-bottom: 0.5rem;
    display: block;
}

/* --- ACCORDIONS --- */
.day-accordion-item {
    background: var(--accordion-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    margin-bottom: 1rem;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: var(--card-shadow);
}

.day-accordion-header {
    padding: 1rem 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--accordion-header-bg);
    transition: all 0.2s ease;
    border-bottom: 1px solid transparent;
}

.day-accordion-header:hover {
    background: var(--cyan-soft);
    opacity: 0.9;
}

.day-accordion-header.active {
    background: var(--cyan-soft);
    border-bottom: 1px solid var(--card-border);
}

.day-accordion-title {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    flex-grow: 1;
    overflow-x: auto;
    padding-right: 1rem;
    scrollbar-width: none;
}

.day-accordion-title::-webkit-scrollbar {
    display: none;
}

.day-date {
    font-weight: 700;
    color: var(--text-title);
    font-size: 0.95rem;
    min-width: 105px;
    border-right: 1px solid var(--card-border);
    padding-right: 0.75rem;
    flex-shrink: 0;
}

.day-summary-item {
    display: flex;
    flex-direction: column;
    min-width: 85px;
    flex-shrink: 0;
}

.day-summary-label {
    font-size: 0.6rem;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 0.5px;
    font-weight: 700;
}

.day-summary-value {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--cyan-primary);
}

.day-accordion-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    background: rgba(0, 0, 0, 0.05);
}

.day-accordion-item.active .day-accordion-body {
    max-height: 2000px;
}

.day-arrow {
    color: var(--cyan-primary);
    font-size: 1rem;
    transition: transform 0.3s ease;
    opacity: 0.7;
}

.day-accordion-item.active .day-arrow {
    transform: rotate(180deg);
    opacity: 1;
}

/* --- TABLES --- */
.table-cyber {
    width: 100%;
    margin-bottom: 0;
    color: var(--text-main);
    border-collapse: separate;
    border-spacing: 0;
}

.table-cyber thead th {
    background-color: var(--table-header-bg) !important;
    color: var(--cyan-primary) !important;
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.85rem;
    padding: 1rem;
    border-bottom: 2px solid var(--card-border) !important;
}

.table-cyber tbody td {
    padding: 1rem;
    border-bottom: 1px solid var(--card-border);
    vertical-align: middle;
    background: transparent !important;
    color: var(--text-main) !important;
}

.day-nested-table {
    margin-bottom: 0 !important;
    background-color: transparent !important;
}

.day-nested-table thead th {
    font-size: 0.7rem !important;
    padding: 0.6rem 1rem !important;
}

/* --- FILTERS & SLIDERS --- */
.km-range-filter {
    background: var(--accordion-header-bg) !important;
    border: 1px solid var(--card-border) !important;
    border-radius: 10px;
    padding: 12px 16px;
    min-width: 280px;
}

.filter-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--cyan-primary);
    font-weight: 600;
}

.range-values {
    font-size: 0.85rem;
    color: var(--text-title);
    font-weight: 600;
}

#kmRangeSlider {
    height: 6px;
    background: var(--input-border);
    border: none;
    border-radius: 3px;
}

#kmRangeSlider .noUi-connect {
    background: linear-gradient(90deg, var(--cyan-primary), #3a7bd5);
}

#kmRangeSlider .noUi-handle {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--cyan-primary);
    border: 2px solid #fff;
    box-shadow: 0 0 10px var(--cyan-glow);
    cursor: pointer;
    top: -6px;
}

/* --- FORMS --- */
.form-control::placeholder {
    color: var(--form-placeholder);
    opacity: 1;
}

/* --- BOOTSTRAP OVERRIDES --- */
.btn-outline-info {
    border-color: var(--cyan-primary);
    color: var(--cyan-primary);
}

.btn-outline-info:hover {
    background-color: var(--cyan-primary);
    border-color: var(--cyan-primary);
    color: #fff !important;
}

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

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

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

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

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

/* Override Bootstrap Defaults for Light Mode */
[data-theme='light'] .alert-info {
    background-color: var(--cyan-soft) !important;
    border-color: var(--cyan-primary) !important;
    color: var(--cyan-primary) !important;
}

[data-theme='light'] .alert-warning {
    background-color: var(--warning-soft) !important;
    border-color: var(--accent-warning) !important;
    color: var(--accent-warning) !important;
}

[data-theme='light'] .alert-success {
    background-color: rgba(13, 138, 94, 0.08) !important;
    border-color: var(--accent-green) !important;
    color: var(--accent-green) !important;
}

[data-theme='light'] .btn-info {
    background-color: var(--cyan-primary) !important;
    border-color: var(--cyan-primary) !important;
    color: #fff !important;
}

[data-theme='light'] .btn-warning {
    background-color: var(--accent-orange) !important;
    /* Usar naranja en vez de amarillo chillón */
    border-color: var(--accent-orange) !important;
    color: #fff !important;
}

[data-theme='light'] .btn-outline-info {
    color: var(--cyan-primary) !important;
    border-color: var(--cyan-primary) !important;
}

[data-theme='light'] .btn-outline-info:hover {
    background-color: var(--cyan-primary) !important;
    color: #fff !important;
}

[data-theme='light'] .bg-info:not(.bg-opacity-10) {
    background-color: var(--cyan-primary) !important;
}

[data-theme='light'] .bg-info.bg-opacity-10 {
    background-color: var(--cyan-soft) !important;
}

/* --- LOGIN PAGE --- */
.btn-google {
    background: white;
    color: #444;
    font-weight: 600;
    border-radius: 8px;
    padding: 12px 24px;
    transition: all 0.3s ease;
    border: none;
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.btn-google:hover {
    background: #f1f1f1;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
    color: #000;
}

/* --- CUSTOMIZE PANEL --- */
#customizePanel {
    position: fixed;
    top: 0;
    right: 0;
    width: 320px;
    height: 100vh;
    background: var(--card-bg) !important;
    border-left: 1px solid var(--card-border) !important;
    z-index: 1050;
    box-shadow: -5px 0 25px var(--shadow-color);
    backdrop-filter: blur(10px);
    overflow-y: auto;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateX(100%);
}

#customizePanel.active {
    transform: translateX(0);
}

#customizePanelOverlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1049;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease;
}

#customizePanelOverlay.active {
    opacity: 1;
    visibility: visible;
}

.customize-item {
    background: rgba(255, 255, 255, 0.05) !important;
    border-radius: 8px;
}

[data-theme='light'] .customize-item {
    background: rgba(0, 0, 0, 0.05) !important;
}

/* --- 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);
}

/* --- COMMUNITY WIDGET --- */
.community-widget {
    background: linear-gradient(135deg, var(--cyan-soft) 0%, rgba(16, 185, 129, 0.08) 100%);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 1.5rem;
    margin: 2rem 0;
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 32px rgba(0, 210, 255, 0.1);
}

.community-modal-content {
    background: var(--bg-gradient);
    border: 1px solid var(--card-border);
}

.comparison-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    table-layout: fixed;
}

.comparison-table th {
    color: var(--cyan-primary);
    padding: 1rem 1.25rem;
    text-align: center;
    font-weight: 700;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: var(--table-header-bg);
    border-bottom: 2px solid var(--card-border);
}

.comparison-table th:first-child {
    text-align: left;
    width: 30%;
}

.comparison-table td {
    color: var(--text-main);
    padding: 1rem 1.25rem;
    text-align: center;
    border-bottom: 1px solid var(--card-border);
    font-size: 1rem;
    font-weight: 500;
}

.comparison-table td:first-child {
    text-align: left;
    font-weight: 600;
    color: var(--text-muted);
}

.comparison-table td.user-value {
    color: var(--cyan-primary);
    font-weight: 700;
    font-size: 1.1rem;
}

.comparison-table tbody tr:hover {
    background: var(--table-row-hover);
}

.comparison-table tbody tr:last-child td {
    border-bottom: none;
}

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

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

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

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

/* --- SPECIFIC ACCORDIONS --- */
.community-accordion-item,
.chart-accordion-item,
.dataset-accordion-item {
    background: transparent !important;
    border: 1px solid var(--card-border) !important;
    border-radius: 12px !important;
}

.community-accordion-button,
.chart-accordion-button,
.dataset-accordion-button {
    background: linear-gradient(135deg, var(--cyan-soft) 0%, rgba(16, 185, 129, 0.1) 100%) !important;
    color: var(--text-title) !important;
    border-radius: 12px !important;
    font-weight: 600 !important;
    text-transform: uppercase;
    display: flex !important;
    align-items: center !important;
    gap: 1.5rem !important;
    /* Espacio entre título y resumen */
}

.accordion-summary {
    display: flex;
    gap: 3rem;
    /* Espacio generoso entre 'Tú' y 'Media' */
    margin-left: auto;
    margin-right: 2rem;
    align-items: center;
}

.accordion-summary>span {
    white-space: nowrap;
}

.community-accordion-body,
.chart-accordion-body,
.dataset-accordion-body {
    background: var(--modal-bg) !important;
    border-radius: 0 0 12px 12px !important;
}

/* --- COMMUNITY --- */
.community-badge-card {
    background: linear-gradient(135deg, var(--cyan-soft) 0%, rgba(16, 185, 129, 0.08) 100%) !important;
}

.alert-info-soft {
    background: rgba(16, 185, 129, 0.15) !important;
    border: 1px solid rgba(16, 185, 129, 0.3) !important;
    color: #a7f3d0 !important;
}

[data-theme='light'] .alert-info-soft {
    background: rgba(16, 185, 129, 0.1) !important;
    color: var(--accent-green) !important;
}

/* --- UTILS --- */
.progress-hud {
    height: 6px !important;
    background: var(--grid-color) !important;
}

.alert-eff-suggestion {
    background: var(--grid-color) !important;
    border-left: 3px solid var(--cyan-primary) !important;
}

.insight-sweet-spot {
    background: rgba(0, 255, 157, 0.05) !important;
    border: 1px dashed rgba(0, 255, 157, 0.2) !important;
}

[data-theme='light'] .insight-sweet-spot {
    background: rgba(0, 255, 157, 0.03) !important;
    border: 1px dashed rgba(0, 255, 157, 0.4) !important;
}

/* --- EXPENSES MODAL SPECIFIC --- */
.expenses-modal-content {
    border: 1px solid var(--accent-orange) !important;
    box-shadow: 0 10px 40px var(--shadow-color) !important;
}

#expenseTabs {
    border: none !important;
}

#expenseTabs .nav-link {
    background: transparent;
    border: 1px solid var(--card-border);
    color: var(--text-main);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 8px;
    transition: all 0.3s ease;
}

#expenseTabs .nav-link.active {
    background: var(--orange-soft) !important;
    border-color: var(--accent-orange) !important;
    color: var(--accent-orange) !important;
}

#expenseTabs .nav-link:not(.active):hover {
    background: var(--table-row-hover) !important;
    border-color: var(--card-border) !important;
    color: var(--cyan-primary) !important;
}

.table-cyber thead {
    border-bottom: 2px solid var(--card-border) !important;
}

.table-cyber tfoot {
    border-top: 2px solid var(--accent-orange) !important;
}

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

/* --- RANGE ESTIMATION TABLE --- */
#blockRangeEstimationTable .table-cyber tbody tr {
    transition: background 0.2s ease;
}

#blockRangeEstimationTable .table-cyber tbody tr:hover {
    background: var(--cyan-soft) !important;
}

.shadow-glow {
    box-shadow: 0 0 10px var(--cyan-glow);
}

.shadow-glow-success {
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.4);
}

.shadow-glow-info {
    box-shadow: 0 0 10px rgba(0, 210, 255, 0.4);
}

.shadow-glow-warning {
    box-shadow: 0 0 10px rgba(255, 193, 7, 0.4);
}

/* --- STANDOUT IMPORT BUTTON --- */
.btn-import-more-hud {
    background-color: #d97706 !important; /* Ocre / Amarillo Oscuro Premium */
    border-color: #d97706 !important;
    color: #ffffff !important;
    font-weight: 700 !important;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
    padding: 0.5rem 1.25rem !important;
    border-radius: 8px !important;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
    box-shadow: 0 4px 12px rgba(217, 119, 6, 0.2);
}

.btn-import-more-hud:hover {
    background-color: #b45309 !important;
    border-color: #b45309 !important;
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(217, 119, 6, 0.4);
}

.btn-import-more-hud i {
    text-shadow: 0 1px 2px rgba(0,0,0,0.2);
}