: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: #6c757d;
    --card-bg: rgba(255, 255, 255, 0.03);
    --card-border: rgba(255, 255, 255, 0.1);
    --card-hover-bg: rgba(0, 210, 255, 0.05);
    --card-hover-border: rgba(0, 210, 255, 0.5);

    --cyan-primary: #00d2ff;
    --cyan-hover: #00d2ff;
    --cyan-shadow: rgba(0, 210, 255, 0.3);

    --progress-container-bg: rgba(15, 20, 25, 0.85);
    --progress-bg: rgba(255, 255, 255, 0.1);
    --progress-bar-bg: #00d2ff;
    --progress-bar-color: #000;
    --progress-bar-shadow: rgba(0, 210, 255, 0.6);
    --progress-success-bg: #00ff9d;
    --progress-success-shadow: rgba(0, 255, 157, 0.6);

    --accordion-bg: transparent;
    --accordion-border: rgba(0, 210, 255, 0.3);
    --accordion-btn-bg: rgba(20, 25, 30, 0.6);
    --accordion-btn-color: #00d2ff;
    --accordion-btn-active-bg: rgba(0, 210, 255, 0.1);
    --accordion-btn-active-color: #fff;
    --accordion-body-bg: rgba(0, 0, 0, 0.2);
    --accordion-arrow-filter: invert(1) grayscale(100%) brightness(200%);

    --check-checked-bg: rgba(0, 255, 157, 0.05);
    --check-checked-border: #00ff9d;
    --check-checked-shadow: rgba(0, 255, 157, 0.1);
    --check-input-bg: rgba(0, 0, 0, 0.5);
    --check-input-border: #6c757d;
    --check-input-checked-bg: #00ff9d;
    --check-input-checked-border: #00ff9d;
    --check-label-color: #fff;
    --check-label-checked: #00ff9d;
    --check-note-color: #e0e0e0;
    --check-note-checked: #a3cfbb;

    --critical-border: #ffc107;
    --critical-label: #ffda6a;
    --warning-text: #ffc107;

    --btn-outline-color: #00d2ff;
    --btn-outline-border: #00d2ff;
    --btn-outline-hover-bg: #00d2ff;
    --btn-outline-hover-color: #000;

    --modal-bg: #1c1c1e;
    --modal-border: #444;
    --shadow-color: rgba(0, 0, 0, 0.5);
}

[data-theme='light'] {
    /* --- TEMA LIGHT --- */
    --bg-main: #f8f9fa;
    --text-main: #212529;
    --text-title: #1a1d21;
    --text-muted: #6c757d;
    --card-bg: #ffffff;
    --card-border: rgba(0, 0, 0, 0.1);
    --card-hover-bg: rgba(0, 118, 138, 0.05);
    /* Cyan más oscuro */
    --card-hover-border: rgba(0, 118, 138, 0.5);

    --cyan-primary: #00768a;
    /* Cyan más oscuro para light */
    --cyan-hover: #005c6b;
    --cyan-shadow: rgba(0, 118, 138, 0.2);

    --progress-container-bg: rgba(255, 255, 255, 0.95);
    --progress-bg: rgba(0, 0, 0, 0.1);
    --progress-bar-bg: #00768a;
    --progress-bar-color: #fff;
    --progress-bar-shadow: none;
    /* Sin glow en light */
    --progress-success-bg: #198754;
    /* Verde standard bootstrap */
    --progress-success-shadow: none;

    --accordion-bg: #ffffff;
    --accordion-border: rgba(0, 0, 0, 0.125);
    --accordion-btn-bg: #f8f9fa;
    --accordion-btn-color: #00768a;
    --accordion-btn-active-bg: rgba(0, 118, 138, 0.1);
    --accordion-btn-active-color: #005c6b;
    --accordion-body-bg: #f8f9fa;
    --accordion-arrow-filter: none;
    /* Flecha por defecto (oscura) */

    --check-checked-bg: #e8f5e9;
    --check-checked-border: #198754;
    --check-checked-shadow: none;
    --check-input-bg: #fff;
    --check-input-border: #ced4da;
    --check-input-checked-bg: #198754;
    --check-input-checked-border: #198754;
    --check-label-color: #212529;
    --check-label-checked: #198754;
    --check-note-color: #6c757d;
    --check-note-checked: #495057;

    --critical-border: #ffc107;
    /* Warning bootstrap standard */
    --critical-label: #856404;
    /* Warning text oscuro */
    --warning-text: #856404;

    --btn-outline-color: #00768a;
    --btn-outline-border: #00768a;
    --btn-outline-hover-bg: #00768a;
    --btn-outline-hover-color: #fff;

    --modal-bg: #ffffff;
    --modal-border: #dee2e6;
    --shadow-color: rgba(0, 0, 0, 0.1);
}

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

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

/* Wrapper */
.content-wrapper {
    max-width: 1600px;
    margin: 0 auto;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}

h1,
h2,
h3 {
    color: var(--text-title);
}

/* Text Shadow solo en Dark para Titulos */
body:not([data-theme='light']) h1,
body:not([data-theme='light']) h2,
body:not([data-theme='light']) h3 {
    text-shadow: 0 0 10px var(--cyan-shadow);
}

.lead {
    color: var(--text-main) !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: 1030;
    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);
}

/* --- BARRA DE PROGRESO STICKY (HUD STYLE) --- */
.progress-container {
    position: sticky;
    top: 56px;
    z-index: 1020;
    background: var(--progress-container-bg);
    backdrop-filter: blur(10px);
    padding: 15px 0;
    border-bottom: 1px solid var(--card-border);
    box-shadow: 0 4px 20px var(--shadow-color);
}

.progress {
    background-color: var(--progress-bg);
    border-radius: 4px;
    height: 25px;
    overflow: visible;
}

.progress-bar {
    background-color: var(--progress-bar-bg);
    color: var(--progress-bar-color);
    font-weight: 700;
    box-shadow: var(--progress-bar-shadow);
    transition: width 0.4s ease;
}

.progress-bar.bg-success {
    background-color: var(--progress-success-bg) !important;
    box-shadow: var(--progress-success-shadow);
    color: var(--progress-bar-color);
}

/* --- ACORDEÓN --- */
.accordion-item {
    background-color: var(--accordion-bg);
    border: 1px solid var(--accordion-border);
    margin-bottom: 1rem;
    border-radius: 8px !important;
    overflow: hidden;
}

.accordion-button {
    background-color: var(--accordion-btn-bg);
    color: var(--accordion-btn-color);
    font-weight: 700;
    box-shadow: none !important;
}

.accordion-button:not(.collapsed) {
    background-color: var(--accordion-btn-active-bg);
    color: var(--accordion-btn-active-color);
}

/* Sombra texto solo en dark */
body:not([data-theme='light']) .accordion-button:not(.collapsed) {
    text-shadow: 0 0 5px var(--cyan-shadow);
}

.accordion-button::after {
    filter: var(--accordion-arrow-filter);
}

.accordion-body {
    background-color: var(--accordion-body-bg);
    padding: 1rem;
}

/* --- TARJETAS CHECKLIST --- */
.check-card {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 12px;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    display: flex;
    align-items: flex-start;
}

/* Hover */
.check-card:hover {
    background-color: var(--card-hover-bg);
    border-color: var(--card-hover-border);
}

/* CHECKED STATE */
.check-card.is-checked {
    background-color: var(--check-checked-bg);
    border: 1px solid var(--check-checked-border);
    box-shadow: 0 0 10px var(--check-checked-shadow) inset;
}

/* CHECKBOX CUSTOM */
.form-check-input {
    width: 1.6em;
    height: 1.6em;
    margin-right: 15px;
    flex-shrink: 0;
    background-color: var(--check-input-bg);
    border: 2px solid var(--check-input-border);
    cursor: pointer;
}

.form-check-input:checked {
    background-color: var(--check-input-checked-bg);
    border-color: var(--check-input-checked-border);
    box-shadow: 0 0 10px var(--check-checked-shadow);
}

/* El tick dentro del checkbox */
.form-check-input:checked[type=checkbox] {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3e%3cpath fill='none' stroke='%23000' stroke-linecap='round' stroke-linejoin='round' stroke-width='3' d='M6 10l3 3l6-6'/%3e%3c/svg%3e");
}

/* Tick color blanco en modo dark porque el fondo puede ser brillante, pero aqui usamos un svg negro.
   En modo dark el check es verde neón, tick negro está bien.
   En modo light el check es verde bootstrap, tick negro está bien (o blanco).
   Bootstrap usa tick blanco por defecto en checked.
   Ajustaremos el SVG si hace falta. El inline SVG tiene stroke='%23000' (negro).
*/
[data-theme='light'] .form-check-input:checked[type=checkbox] {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3e%3cpath fill='none' stroke='%23fff' stroke-linecap='round' stroke-linejoin='round' stroke-width='3' d='M6 10l3 3l6-6'/%3e%3c/svg%3e");
}


/* TEXTOS */
.check-label {
    font-weight: 600;
    font-size: 1.05rem;
    color: var(--check-label-color);
    display: block;
    cursor: pointer;
}

.check-card.is-checked .check-label {
    color: var(--check-label-checked);
}

body:not([data-theme='light']) .check-card.is-checked .check-label {
    text-shadow: 0 0 5px rgba(0, 255, 157, 0.3);
}

.text-note {
    font-size: 0.9rem;
    color: var(--check-note-color);
    display: block;
    margin-top: 4px;
    line-height: 1.4;
}

.check-card.is-checked .text-note {
    color: var(--check-note-checked);
}

/* ITEMS CRÍTICOS */
.check-card.critical {
    border-left: 4px solid var(--critical-border);
}

.check-card.critical .check-label {
    color: var(--critical-label);
}

/* Botón Imprimir */
.btn-outline-primary {
    color: var(--btn-outline-color);
    border-color: var(--btn-outline-border);
}

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

[data-theme='light'] .btn-outline-primary:hover {
    box-shadow: none;
}

/* Utilidades contextuales */
.text-warning-custom {
    color: var(--warning-text) !important;
}

[data-theme='light'] .content-wrapper .text-muted {
    color: #6c757d !important;
}

[data-theme='light'] .content-wrapper .text-white {
    color: #212529 !important;
}

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