:root {
    /* Nueva Paleta Pastel Belcris - Alto Contraste */
    --primary-color: #6D8BC4;
    /* Más oscuro para legibilidad */
    --primary-light: #D0DDEF;
    /* Un poco más oscuro que antes */
    --primary-dark: #4A69A0;

    --sidebar-bg: #FFFFFF;
    /* Sidebar blanco para look limpio */
    --sidebar-border: #E2E8F0;
    --sidebar-active: #EBF2FF;
    --sidebar-text: #475569;
    /* Texto más oscuro */
    --sidebar-text-active: #2563EB;

    /* Colores Secundarios Pastel */
    --success-color: #48C9B0;
    /* Más vibrante */
    --danger-color: #F87171;
    /* Rosa pastel */
    --warning-color: #FCD34D;
    /* Crema/Amarillo pastel */

    /* Colores de Fondo y Texto */
    --light-bg: #F8FAFC;
    /* Fondo muy claro azulado */
    --card-bg: #FFFFFF;
    --dark-text: #1E293B;
    /* Casi negro */
    --muted-text: #64748B;
    /* Gris medio */

    /* Bordes y Sombras más suaves */
    --card-border-radius: 12px;
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);

    /* Layout */
    --sidebar-width: 260px;
    --header-height: 70px;
}

h1 {
    font-size: 1.75rem;
}

h2 {
    font-size: 1.5rem;
}

h3 {
    font-size: 1.3rem;
}

h4 {
    font-size: 1.15rem;
}

h5 {
    font-size: 1rem;
}

h6 {
    font-size: 0.9rem;
}

* {
    box-sizing: border-box;
}

body {
    background-color: var(--light-bg);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--dark-text);
    padding-top: var(--header-height);
    margin: 0;
    font-size: 14px;
    line-height: 1.6;
    overflow-x: hidden;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
}

/* Scrollbar Customization */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #cbd5e0;
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: #a0aec0;
}

/* --- Header --- */
.main-header {
    background-color: #FFFFFF;
    color: var(--dark-text);
    height: var(--header-height);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1030;
    display: flex;
    align-items: center;
    padding: 0 30px;
    box-shadow: var(--shadow-sm);
    border-bottom: 1px solid #E8EAED;
}

.brand-logo {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    text-decoration: none;
    margin-right: 30px;
    height: 100%;
}

.brand-logo img {
    max-height: 60px;
    max-width: 200px;
    width: auto;
    object-fit: contain;
    display: block;
}

.main-header .dropdown-toggle {
    color: var(--dark-text);
    font-weight: 500;
    font-size: 0.95rem;
}

/* --- Sidebar --- */
.sidebar {
    position: fixed;
    top: var(--header-height);
    left: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: var(--sidebar-bg);
    padding: 20px 0;
    overflow-y: auto;
    z-index: 1020;
    box-shadow: none;
    border-right: 1px solid var(--sidebar-border);
}

.sidebar::-webkit-scrollbar {
    width: 4px;
}

.sidebar::-webkit-scrollbar-thumb {
    background-color: var(--sidebar-border);
    border-radius: 10px;
}

/* --- Sidebar Navigation --- */
.nav-category {
    padding: 15px 25px 8px;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--muted-text);
    text-transform: uppercase;
    letter-spacing: 0.8px;
}

.nav-link {
    color: var(--sidebar-text);
    padding: 14px 25px;
    display: flex;
    align-items: center;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 0 50px 50px 0;
    font-size: 0.95rem;
    font-weight: 600;
    position: relative;
    margin-right: 15px;
    margin-bottom: 4px;
}

.nav-link::before {
    display: none;
}

.nav-link:hover {
    background-color: var(--primary-light);
    color: var(--primary-color);
    text-decoration: none;
}

.nav-link.active {
    background-color: var(--sidebar-active);
    color: var(--sidebar-text-active);
    box-shadow: inset 4px 0 0 var(--primary-color);
}

.nav-link i {
    width: 24px;
    text-align: center;
    margin-right: 12px;
    font-size: 1.1rem;
    opacity: 0.9;
}

.nav-link.active i {
    opacity: 1;
}

/* --- Content --- */
.content-wrapper {
    margin-left: var(--sidebar-width);
    padding: 30px;
    min-height: calc(100vh - var(--header-height));
}

/* --- Cards --- */
.card {
    border: 1px solid #F1F4F9;
    border-radius: var(--card-border-radius);
    box-shadow: var(--shadow-sm);
    margin-bottom: 25px;
    background-color: var(--card-bg);
    transition: all 0.3s ease;
}

.card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.card-daily {
    border-top: 4px solid var(--primary-color) !important;
    border-left: none;
}

.card-special {
    border-top: 4px solid var(--warning-color) !important;
    border-left: none;
}

.card-persistent {
    border-top: 4px solid var(--success-color) !important;
    border-left: none;
}

.card-header {
    background-color: transparent;
    border-bottom: 1px solid #F1F3F5;
    font-weight: 600;
    padding: 20px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: var(--dark-text);
}

.card-body {
    padding: 24px;
}

.card-title {
    margin: 0;
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--dark-text);
}

/* --- Badges --- */
.badge {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.3px;
}

.badge-success-custom,
.badge.bg-success {
    background-color: var(--success-color) !important;
    color: white;
}

.badge-warning-custom,
.badge.bg-warning {
    background-color: var(--warning-color) !important;
    color: #333;
}

.badge-secondary-custom,
.badge.bg-secondary {
    background-color: #A0AEC0 !important;
    color: white;
}

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

.badge.bg-danger {
    background-color: var(--danger-color) !important;
    color: white;
}

.badge.bg-primary {
    background-color: var(--primary-color) !important;
    color: white;
}

/* --- Botones --- */
.btn {
    border-radius: 8px;
    padding: 10px 20px;
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    border: none;
}

.btn-primary-custom,
.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    box-shadow: 0 4px 14px 0 rgba(137, 168, 224, 0.3);
    border: none;
}

.btn-primary-custom:hover,
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(137, 168, 224, 0.4);
    color: white;
}

.btn-outline-primary {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    background: transparent;
}

.btn-outline-primary:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.btn-danger {
    background-color: var(--danger-color);
    box-shadow: 0 2px 8px rgba(240, 138, 138, 0.3);
}

.btn-sm {
    padding: 6px 14px;
    font-size: 0.85rem;
}

.btn-xs {
    padding: 4px 10px;
    font-size: 0.8rem;
}

/* --- Tables --- */
.table {
    font-size: 0.9rem;
}

.table th {
    font-weight: 600;
    color: var(--muted-text);
    border-top: none;
    border-bottom: 2px solid #F1F3F5;
    padding: 14px;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
}

.table td {
    vertical-align: middle;
    padding: 16px 14px;
    border-bottom: 1px solid #F7F8FA;
}

.table-hover tbody tr:hover {
    background-color: #F9FAFB;
}

/* --- Task Items --- */
.task-item {
    border-bottom: 1px solid #F1F3F5;
    padding: 16px 12px;
    transition: all 0.2s ease;
}

.task-item:last-child {
    border-bottom: none;
}

.task-item:hover {
    background-color: #F9FAFB;
}

.task-checkbox {
    width: 22px;
    height: 22px;
    cursor: pointer;
    accent-color: var(--success-color);
}

.task-title {
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--dark-text);
    font-size: 0.95rem;
}

.task-desc {
    font-size: 0.85rem;
    color: var(--muted-text);
}

.task-completed .task-title {
    text-decoration: line-through;
    color: #A0AEC0;
}

.task-completed .task-desc {
    color: #CBD5E0;
}

/* --- Alerts --- */
.alert {
    border-radius: var(--card-border-radius);
    border: none;
    padding: 16px 20px;
}

.alert-info {
    background-color: #E6F2FF;
    color: #2D5A8C;
}

.alert-danger {
    background-color: #FFE8E8;
    color: #C53030;
}

/* --- Modals --- */
.modal-content {
    border-radius: var(--card-border-radius);
    border: none;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    border-bottom: 1px solid #F1F3F5;
    padding: 20px 24px;
}

.modal-title {
    font-weight: 700;
    font-size: 1.2rem;
    color: inherit;
    /* Heredar color del header (blanco en bg-dark/primary) */
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    border-top: 1px solid #F1F3F5;
    padding: 16px 24px;
}

/* --- Forms --- */
.form-control,
.form-select {
    border: 1.5px solid #E2E8F0;
    border-radius: 8px;
    padding: 10px 14px;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(91, 127, 219, 0.1);
}

.form-label {
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--dark-text);
    font-size: 0.9rem;
}

/* --- Progress Bar Moderna --- */
.progress-modern {
    height: 32px;
    border-radius: 16px;
    background: linear-gradient(135deg, #E9ECEF 0%, #DEE2E6 100%);
    overflow: hidden;
    position: relative;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.06);
}

.progress-bar-modern {
    height: 100%;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    font-weight: 700;
    font-size: 0.85rem;
    color: white;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

/* Animación de brillo que se mueve */
.progress-bar-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg,
            transparent,
            rgba(255, 255, 255, 0.3),
            transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% {
        left: -100%;
    }

    100% {
        left: 100%;
    }
}

/* Gradientes según progreso */
.progress-bar-modern.low {
    background: linear-gradient(135deg, #F093FB 0%, #F5576C 100%);
    box-shadow: 0 4px 12px rgba(245, 87, 108, 0.4);
}

.progress-bar-modern.medium {
    background: linear-gradient(135deg, #FDCB6E 0%, #F39C12 100%);
    box-shadow: 0 4px 12px rgba(253, 203, 110, 0.4);
}

.progress-bar-modern.high {
    background: linear-gradient(135deg, #74B9FF 0%, #5B7FDB 100%);
    box-shadow: 0 4px 12px rgba(91, 127, 219, 0.4);
}

.progress-bar-modern.completed {
    background: linear-gradient(135deg, #7DD3C0 0%, #48C9B0 100%);
    box-shadow: 0 4px 12px rgba(125, 211, 192, 0.5);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        box-shadow: 0 4px 12px rgba(125, 211, 192, 0.5);
    }

    50% {
        box-shadow: 0 4px 20px rgba(125, 211, 192, 0.7);
    }
}

.progress-text {
    position: relative;
    z-index: 1;
    font-size: 0.8rem;
    font-weight: 600;
}

/* Progress estándar de Bootstrap (para compatibilidad) */
.progress {
    height: 12px;
    border-radius: 20px;
    background-color: #E9ECEF;
}

.progress-bar {
    border-radius: 20px;
    transition: width 0.6s ease;
}

/* --- Headings --- */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    color: var(--dark-text);
    letter-spacing: -0.3px;
}

/* --- Welcome Banner & Modern Date --- */
.welcome-banner {
    background: linear-gradient(135deg, #ffffff 0%, var(--primary-light) 100%);
    padding: 30px 40px;
    border-radius: var(--card-border-radius);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--primary-light);
    border-left: 6px solid var(--primary-color);
    margin-bottom: 30px;
    position: relative;
    overflow: hidden;
}

.welcome-banner::after {
    content: '\f073';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    right: -20px;
    top: -10px;
    font-size: 10rem;
    color: var(--primary-color);
    opacity: 0.05;
    pointer-events: none;
}

.welcome-banner h2 {
    font-size: 2rem;
    color: var(--dark-text);
    margin-bottom: 12px;
}

.current-date-modern {
    display: inline-flex;
    align-items: center;
    background: #FFFFFF;
    padding: 12px 28px;
    border-radius: 50px;
    color: var(--primary-color);
    font-weight: 700;
    font-size: 1.1rem;
    border: 1px solid var(--primary-light);
    box-shadow: var(--shadow-sm);
    letter-spacing: 0.2px;
}

.current-date-modern i {
    font-size: 1.3rem;
    margin-right: 12px;
    opacity: 0.8;
}

/* --- Responsive --- */
.mobile-toggle {
    display: none;
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        z-index: 1050;
        background: #FFFFFF;
        border-right: 1px solid var(--sidebar-border);
    }

    .sidebar.active {
        transform: translateX(0);
        box-shadow: 10px 0 30px rgba(0, 0, 0, 0.1);
    }

    .content-wrapper {
        margin-left: 0 !important;
        padding: 20px 15px;
    }

    .main-header {
        padding: 0 15px;
    }

    .mobile-toggle {
        display: flex !important;
        align-items: center;
        justify-content: center;
        background: transparent;
        border: none;
        color: var(--primary-color) !important;
        font-size: 1.5rem;
        margin-right: 10px;
        cursor: pointer;
        z-index: 1060;
    }
}

/* --- Animations --- */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card {
    animation: fadeIn 0.4s ease-out;
}

/* Optimization for Mobile */
@media (max-width: 768px) {
    h2 {
        font-size: 1.3rem !important;
    }

    h3 {
        font-size: 1.1rem !important;
    }

    h4 {
        font-size: 1rem !important;
    }

    h5 {
        font-size: 0.95rem !important;
    }

    h6 {
        font-size: 0.9rem !important;
    }

    .welcome-banner {
        padding: 18px 15px !important;
        margin-bottom: 20px !important;
    }

    .welcome-banner h2 {
        font-size: 1.3rem !important;
    }

    .welcome-banner::after {
        font-size: 5rem;
        right: -5px;
    }

    .current-date-modern {
        font-size: 0.8rem !important;
        padding: 4px 12px !important;
    }

    .current-date-modern i {
        font-size: 0.9rem !important;
        margin-right: 6px !important;
    }

    .card-title {
        font-size: 0.9rem !important;
    }

    .card-header {
        padding: 10px 15px !important;
    }

    .card-body {
        padding: 15px !important;
    }

    .table-responsive {
        border: none !important;
    }

    .table {
        font-size: 0.72rem !important;
    }

    .table th,
    .table td {
        padding: 8px 4px !important;
        white-space: normal !important;
        word-break: break-word !important;
    }

    .btn-sm {
        padding: 4px 8px !important;
        font-size: 0.7rem !important;
    }

    .badge {
        padding: 4px 8px !important;
        font-size: 0.65rem !important;
    }
}
/* Table Compactness Override */
.table th, .table td { padding: 8px 10px !important; font-size: 0.85rem !important; }

/* Mobile Calendar Icons Fix */
@media (max-width: 768px) {
    .action-reveal .btn { padding: 4px 8px !important; font-size: 0.9rem !important; }
}

/* --- MEJORAS VISUALES CHECKBOX --- */
.task-checkbox {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-color: #fff;
    margin: 0;
    font: inherit;
    color: currentColor;
    width: 28px !important;
    height: 28px !important;
    border: 2px solid #CBD5E0;
    border-radius: 50% !important;
    display: grid;
    place-content: center;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}

.task-checkbox::before {
    content: "";
    width: 14px;
    height: 14px;
    transform: scale(0);
    transition: 0.2s transform ease-in-out;
    box-shadow: inset 1em 1em white;
    transform-origin: center;
    clip-path: polygon(14% 44%, 0 65%, 50% 100%, 100% 16%, 80% 0%, 43% 62%);
    background-color: white;
}

.task-checkbox:hover {
    border-color: var(--primary-color);
    background-color: #F8FAFC;
    transform: scale(1.1);
    box-shadow: 0 0 0 4px rgba(109, 139, 196, 0.15); /* Primary muy suave */
}

.task-checkbox:checked {
    background-color: var(--success-color);
    border-color: var(--success-color);
    transform: scale(1.05);
    box-shadow: 0 2px 5px rgba(72, 201, 176, 0.4);
}

.task-checkbox:checked::before {
    transform: scale(1);
}

/* Efecto focus para accesibilidad */
.task-checkbox:focus-visible {
    outline: 2px solid var(--primary-dark);
    outline-offset: 2px;
}

/* Fila de tarea al pasar el ratón */
.list-group-item.task-item {
    transition: transform 0.2s ease, background-color 0.2s ease;
}

.list-group-item.task-item:hover {
    background-color: #FAFCFF !important; /* Muy sutil azul */
}