/* ==========================================================================
   Chronos — Sistema de Estilos Premium (Glassmorphism & Temas Dinámicos)
   ========================================================================== */

/* --- Importación e Inicialización --- */
:root {
    /* Tipografía */
    --font-primary: 'Plus Jakarta Sans', sans-serif;
    
    /* Duración de Animaciones */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);

    /* Bordes y Sombras */
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 24px;
    --radius-full: 9999px;
}

/* --- Tema Oscuro (Defecto) --- */
body.dark-mode {
    --bg-primary: #080a10;
    --bg-secondary: rgba(16, 20, 35, 0.6);
    --bg-tertiary: #171c2f;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.16);
    --glass-bg: rgba(13, 17, 30, 0.65);
    --glass-border: rgba(255, 255, 255, 0.07);
    --glass-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
    --input-bg: rgba(7, 10, 18, 0.6);
    
    /* Luces de Fondo */
    --glow-bg-1: radial-gradient(circle at 10% 10%, rgba(99, 102, 241, 0.15), transparent 40%);
    --glow-bg-2: radial-gradient(circle at 90% 80%, rgba(168, 85, 247, 0.12), transparent 45%);
}

/* --- Tema Claro --- */
body.light-mode {
    --bg-primary: #f4f6fa;
    --bg-secondary: rgba(255, 255, 255, 0.65);
    --bg-tertiary: #e2e8f0;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --border-color: rgba(15, 23, 42, 0.08);
    --border-hover: rgba(15, 23, 42, 0.18);
    --glass-bg: rgba(255, 255, 255, 0.75);
    --glass-border: rgba(15, 23, 42, 0.06);
    --glass-shadow: 0 20px 40px rgba(15, 23, 42, 0.05);
    --input-bg: rgba(255, 255, 255, 0.9);
    
    /* Luces de Fondo */
    --glow-bg-1: radial-gradient(circle at 15% 15%, rgba(99, 102, 241, 0.05), transparent 35%);
    --glow-bg-2: radial-gradient(circle at 85% 85%, rgba(168, 85, 247, 0.04), transparent 40%);
}

/* --- Estilos Base --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-primary);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    transition: background-color var(--transition-slow), color var(--transition-slow);
}

/* Luces Ambientales del Fondo */
body::before, body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    pointer-events: none;
    transition: background var(--transition-slow);
}
body::before {
    background: var(--glow-bg-1);
}
body::after {
    background: var(--glow-bg-2);
}

/* --- Contenedor e Interfaz Principal --- */
.app-container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* --- Encabezado Premium (App Header) --- */
.app-header {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 1.25rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: var(--glass-shadow);
    z-index: 10;
    transition: background var(--transition-normal), border var(--transition-normal);
}

.brand {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, #6366f1, #a855f7);
    display: flex;
    justify-content: center;
    align-items: center;
    color: #ffffff;
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.3);
    position: relative;
    overflow: hidden;
}

.logo-icon::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transform: rotate(30deg);
    animation: shine 4s infinite linear;
}

@keyframes shine {
    0% { transform: translate(-30%, -30%) rotate(30deg); }
    100% { transform: translate(30%, 30%) rotate(30deg); }
}

.brand-text h1 {
    font-size: 1.5rem;
    font-weight: 800;
    line-height: 1;
    background: linear-gradient(135deg, var(--text-primary), #6366f1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.5px;
}

.sub-brand {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

/* Selector del Año */
.year-selector-container {
    display: flex;
    align-items: center;
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    padding: 0.35rem 0.5rem;
    gap: 0.5rem;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.05);
}

.active-year {
    font-size: 1.35rem;
    font-weight: 800;
    min-width: 80px;
    text-align: center;
    letter-spacing: 1px;
    background: linear-gradient(135deg, #a855f7, #6366f1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    user-select: none;
}

/* Herramientas del Header */
.header-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.search-box {
    position: relative;
    display: flex;
    align-items: center;
}

.search-box input {
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    padding: 0.65rem 1rem 0.65rem 2.5rem;
    color: var(--text-primary);
    font-family: var(--font-primary);
    font-size: 0.875rem;
    width: 200px;
    outline: none;
    transition: width var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.search-box input:focus {
    width: 280px;
    border-color: #6366f1;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.icon-search {
    position: absolute;
    left: 0.95rem;
    width: 16px;
    height: 16px;
    color: var(--text-muted);
    pointer-events: none;
}

/* Botones Estilizados */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 0.875rem;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    gap: 0.5rem;
}

.btn-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    padding: 0;
}

.btn-secondary {
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.btn-secondary:hover {
    border-color: var(--border-hover);
    background: var(--bg-tertiary);
    transform: translateY(-2px);
}

.btn-primary {
    background: linear-gradient(135deg, #6366f1, #a855f7);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.25);
    padding: 0.75rem 1.25rem;
}

.btn-primary:hover {
    box-shadow: 0 6px 18px rgba(99, 102, 241, 0.35);
    transform: translateY(-2px);
    filter: brightness(1.1);
}

.btn-danger {
    background: linear-gradient(135deg, #ef4444, #f43f5e);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.25);
    padding: 0.75rem 1.25rem;
}

.btn-danger:hover:not(:disabled) {
    box-shadow: 0 6px 18px rgba(239, 68, 68, 0.35);
    transform: translateY(-2px);
    filter: brightness(1.1);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

.btn-small {
    padding: 0.4rem 0.8rem;
    font-size: 0.75rem;
    border-radius: var(--radius-sm);
}

/* Indicador de Sincronización */
.btn-sync-status {
    position: relative;
}

.sync-dot {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 10px;
    height: 10px;
    border-radius: var(--radius-full);
    border: 2px solid var(--bg-primary);
    background-color: #ef4444; /* Rojo: Desconectado por defecto */
    transition: background-color var(--transition-normal);
}

.sync-dot.connected {
    background-color: #10b981; /* Verde: Conectado */
    box-shadow: 0 0 8px #10b981;
}

.sync-dot.syncing {
    background-color: #3b82f6; /* Azul: Sincronizando */
    animation: pulseSync 1.2s infinite alternate;
}

@keyframes pulseSync {
    0% { transform: scale(1); opacity: 0.6; }
    100% { transform: scale(1.3); opacity: 1; box-shadow: 0 0 10px #3b82f6; }
}

/* --- Barra de Filtros --- */
.filters-bar {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 0.75rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: var(--glass-shadow);
}

.filter-label {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.filter-tags-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.filter-tag {
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    padding: 0.4rem 1rem;
    border-radius: var(--radius-full);
    font-family: var(--font-primary);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    transition: all var(--transition-fast);
}

.tag-color-dot {
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
}

.filter-tag:hover {
    color: var(--text-primary);
    border-color: var(--border-hover);
    transform: translateY(-1px);
}

.filter-tag.active {
    color: #ffffff;
    background: var(--active-tag-bg, #6366f1);
    border-color: transparent;
    box-shadow: 0 4px 12px var(--active-tag-shadow, rgba(99, 102, 241, 0.35));
}

/* --- Cuadrícula Anual (Calendar Grid) --- */
.calendar-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
}

/* Tarjeta del Mes */
.month-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: var(--glass-shadow);
    display: flex;
    flex-direction: column;
    gap: 1rem;
    transition: all var(--transition-normal);
}

.month-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.3);
}

.month-name {
    font-size: 1.2rem;
    font-weight: 800;
    letter-spacing: -0.2px;
    text-transform: capitalize;
    background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.6rem;
    margin-bottom: 0.2rem;
}

/* Cuadrícula de Días */
.days-header {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    text-align: center;
    margin-bottom: 0.35rem;
}

.days-header span {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
}

.days-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    row-gap: 0.4rem;
    column-gap: 0.25rem;
}

/* Celda de Día */
.day-cell {
    position: relative;
    aspect-ratio: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.day-btn {
    width: 34px;
    height: 34px;
    border-radius: var(--radius-full);
    border: 1px solid transparent;
    background: transparent;
    color: var(--text-primary);
    font-family: var(--font-primary);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    transition: all var(--transition-fast);
    z-index: 1;
}

.day-btn:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-hover);
    transform: scale(1.1);
}

/* Días de Meses Adyacentes (Vacíos) */
.day-cell.empty .day-btn {
    pointer-events: none;
    opacity: 0;
}

/* Día Actual (Hoy) */
.day-cell.today .day-btn {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(168, 85, 247, 0.2));
    border-color: #6366f1;
    color: #6366f1;
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.3);
}

body.dark-mode .day-cell.today .day-btn {
    color: #818cf8;
}

/* Contenedor de Puntos de Eventos */
.event-dots-container {
    display: flex;
    justify-content: center;
    gap: 2px;
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    height: 4px;
    pointer-events: none;
    z-index: 2;
}

.event-dot {
    width: 4px;
    height: 4px;
    border-radius: var(--radius-full);
    background-color: var(--dot-color, #6366f1);
    box-shadow: 0 0 4px var(--dot-color, #6366f1);
    animation: fadeInDot 0.3s ease-out;
}

@keyframes fadeInDot {
    from { opacity: 0; transform: scale(0); }
    to { opacity: 1; transform: scale(1); }
}

/* Resaltar días filtrados */
.day-cell.has-filtered-event .day-btn {
    box-shadow: 0 0 12px var(--filter-glow-color, rgba(99, 102, 241, 0.5));
    border-color: var(--filter-border-color, #6366f1);
}

/* --- Modales Esmerilados (Glassmorphic Modals) --- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(4, 5, 9, 0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal);
}

body.light-mode .modal-overlay {
    background: rgba(15, 23, 42, 0.4);
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--glass-shadow);
    width: 90%;
    max-width: 580px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.modal-sync-settings {
    max-width: 500px;
}

/* Animación de apertura */
.animate-scale {
    transform: scale(0.92);
    opacity: 0;
    transition: transform var(--transition-normal), opacity var(--transition-normal);
}

.modal-overlay.active .animate-scale {
    transform: scale(1);
    opacity: 1;
}

/* Cabecera del Modal */
.modal-header {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.02);
}

.modal-title-group {
    display: flex;
    align-items: center;
    gap: 0.85rem;
}

.modal-header-icon {
    width: 32px;
    height: 32px;
    color: #6366f1;
}

.modal-header h2 {
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: -0.2px;
}

.modal-subtitle {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.btn-close {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.25rem;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.btn-close:hover {
    color: var(--text-primary);
    background: var(--border-color);
    transform: rotate(90deg);
}

/* Cuerpo del Modal */
.modal-body {
    padding: 2rem;
    overflow-y: auto;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.modal-divider {
    border: 0;
    height: 1px;
    background-color: var(--border-color);
    margin: 0.5rem 0;
}

/* --- Panel de Eventos Existentes en el Modal --- */
.events-section h3, .event-form h3 {
    font-size: 0.95rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    margin-bottom: 0.8rem;
}

.events-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    max-height: 200px;
    overflow-y: auto;
    padding-right: 0.25rem;
}

/* Tarjeta de Evento en la lista */
.event-item-card {
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--event-cat-color, #6366f1);
    border-radius: var(--radius-md);
    padding: 0.85rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    transition: all var(--transition-fast);
}

.event-item-card:hover {
    border-color: var(--border-hover);
    transform: translateX(2px);
}

.event-item-info {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.event-item-title {
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.event-item-time-cat {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.event-item-cat-badge {
    background: var(--event-cat-bg, rgba(99, 102, 241, 0.15));
    color: var(--event-cat-color, #818cf8);
    font-weight: 700;
    padding: 0.1rem 0.4rem;
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    text-transform: uppercase;
}

.event-item-desc {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.2rem;
    line-height: 1.4;
}

.event-item-actions {
    display: flex;
    gap: 0.35rem;
}

.btn-action-small {
    background: transparent;
    border: none;
    width: 28px;
    height: 28px;
    border-radius: var(--radius-full);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    transition: all var(--transition-fast);
}

.btn-action-small:hover {
    background: var(--border-color);
}

.btn-action-edit:hover {
    color: #6366f1;
}

.btn-action-delete:hover {
    color: #ef4444;
}

/* Marcador de sin eventos */
.no-events-placeholder {
    text-align: center;
    padding: 1.5rem;
    background: rgba(0, 0, 0, 0.05);
    border: 1px dashed var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-muted);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.icon-placeholder {
    width: 24px;
    height: 24px;
    color: var(--text-muted);
    opacity: 0.7;
}

.no-events-placeholder p {
    font-size: 0.8rem;
    font-weight: 500;
    max-width: 280px;
}

/* --- Formulario de Eventos --- */
.event-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

label {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.required {
    color: #ef4444;
}

input[type="text"], input[type="url"], input[type="time"], select, textarea {
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-family: var(--font-primary);
    font-size: 0.875rem;
    padding: 0.7rem 1rem;
    border-radius: var(--radius-md);
    outline: none;
    width: 100%;
    transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}

input:focus, select:focus, textarea:focus {
    border-color: #6366f1;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

/* Selector de Categoría Especial */
.category-selector-wrapper {
    display: flex;
    gap: 0.5rem;
}

.category-selector-wrapper select {
    flex: 1;
}

/* Panel de nueva categoría collapsible */
.new-category-panel {
    background: rgba(0, 0, 0, 0.1);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1rem;
    transition: all var(--transition-normal);
}

.new-category-panel.collapse {
    display: none;
}

.new-category-input-group {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.new-category-input-group input[type="text"] {
    flex: 1;
}

.new-category-input-group input[type="color"] {
    width: 42px;
    height: 42px;
    padding: 0;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    background: transparent;
}

/* Acciones */
.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.border-top {
    border-top: 1px solid var(--border-color);
    padding-top: 1.25rem;
}

/* --- Configuración de Sincronización --- */
.sync-explanation {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.sync-explanation p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.alert-info-box {
    display: flex;
    gap: 0.85rem;
    background: rgba(99, 102, 241, 0.08);
    border: 1px solid rgba(99, 102, 241, 0.18);
    border-radius: var(--radius-md);
    padding: 1rem;
}

.icon-info {
    width: 20px;
    height: 20px;
    color: #6366f1;
    flex-shrink: 0;
}

.alert-info-box strong {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-primary);
    display: block;
    margin-bottom: 0.2rem;
}

.alert-info-box p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin: 0;
}

.form-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

/* Tarjeta de estado de conexión */
.connection-status-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.01);
}

.status-indicator {
    width: 12px;
    height: 12px;
    border-radius: var(--radius-full);
    position: relative;
}

.connection-status-card.disconnected .status-indicator {
    background-color: #ef4444;
}

.connection-status-card.connected .status-indicator {
    background-color: #10b981;
    box-shadow: 0 0 8px #10b981;
}

.connection-status-card.syncing .status-indicator {
    background-color: #3b82f6;
    animation: blinkSync 1s infinite alternate;
}

@keyframes blinkSync {
    from { opacity: 0.4; }
    to { opacity: 1; }
}

.status-info {
    display: flex;
    flex-direction: column;
}

.status-title {
    font-size: 0.85rem;
    font-weight: 700;
}

.status-details {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.sync-actions-group {
    display: flex;
    gap: 0.75rem;
}

.sync-actions-group button {
    flex: 1;
}

/* --- Toast de Sincronización Inferior --- */
.sync-toast-indicator {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    padding: 0.75rem 1.25rem;
    border-radius: var(--radius-md);
    box-shadow: var(--glass-shadow);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    z-index: 1000;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transform: translateY(150%);
    opacity: 0;
    transition: transform var(--transition-normal), opacity var(--transition-normal);
    pointer-events: none;
}

.sync-toast-indicator.active {
    transform: translateY(0);
    opacity: 1;
}

.sync-toast-indicator i {
    width: 16px;
    height: 16px;
    color: #3b82f6;
}

.sync-toast-indicator span {
    font-size: 0.8rem;
    font-weight: 600;
}

.icon-spin {
    animation: spin 1s infinite linear;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* --- Barra de Scroll Premium --- */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border-hover);
}

/* --- Responsive y Adaptabilidad --- */
@media (max-width: 1024px) {
    .calendar-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    }
}

@media (max-width: 768px) {
    .app-container {
        padding: 1rem;
    }
    
    .app-header {
        flex-direction: column;
        gap: 1rem;
        padding: 1.25rem;
        align-items: stretch;
    }
    
    .brand {
        justify-content: center;
    }
    
    .year-selector-container {
        justify-content: center;
    }
    
    .header-actions {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .search-box {
        width: 100%;
    }
    
    .search-box input {
        width: 100% !important;
    }
    
    .filters-bar {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
        padding: 1rem;
    }
    
    .modal-card {
        max-height: 90vh;
    }
    
    .modal-body {
        padding: 1.25rem;
    }
}