/* ==========================================================================
   SISTEMA DE DISEÑO Y CSS PREMIUM - CATÁLOGO SAC (ERP SUPPORT SYSTEM)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    /* Paleta de Colores HSL - Oscuro Premium */
    --bg-primary: hsl(222, 25%, 7%);
    --bg-secondary: hsl(222, 20%, 11%);
    --bg-tertiary: hsl(222, 18%, 16%);
    --bg-card: hsl(222, 18%, 14%);
    --bg-card-hover: hsl(222, 18%, 18%);
    
    --text-primary: hsl(210, 20%, 96%);
    --text-secondary: hsl(210, 12%, 75%);
    --text-muted: hsl(210, 10%, 50%);
    
    /* Colores de Acento */
    --color-primary: hsl(210, 100%, 56%);
    --color-primary-hover: hsl(210, 100%, 65%);
    --color-primary-rgb: 28, 137, 255;
    
    --color-area: hsl(210, 100%, 56%);
    --color-area-hover: hsl(210, 100%, 65%);
    --color-area-rgb: 28, 137, 255;
    
    --color-success: hsl(145, 75%, 43%);
    --color-success-hover: hsl(145, 80%, 50%);
    --color-warning: hsl(38, 92%, 52%);
    --color-danger: hsl(355, 82%, 56%);
    --color-info: hsl(190, 90%, 50%);
    
    /* Bordes y Sombras */
    --border-color: hsl(222, 15%, 20%);
    --border-color-focus: hsl(210, 100%, 56%);
    --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 15px rgba(28, 137, 255, 0.25);
    
    /* Bordes Redondeados */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Transiciones */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Dimensiones */
    --sidebar-width: 290px;
    --header-height: 65px;
}

/* ==========================================================================
   ESTILOS GENERALES Y RESET
   ========================================================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    height: 100vh;
    overflow: hidden;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
}

button, input, select, textarea {
    font-family: inherit;
    font-size: inherit;
    color: inherit;
    background: none;
    border: none;
}

button {
    cursor: pointer;
}

/* Scrollbars Personalizados */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: var(--radius-sm);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* ==========================================================================
   ESTILOS DE VISTA DE AUTENTICACIÓN (LOGIN)
   ========================================================================== */
.auth-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: radial-gradient(circle at top right, hsl(210, 80%, 15%), var(--bg-primary) 60%);
    padding: 20px;
}

.auth-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 450px;
    padding: 40px;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.auth-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-info));
}

.auth-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 30px;
    text-align: center;
}

.auth-logo-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-info));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
    box-shadow: var(--shadow-glow);
}

.auth-logo-icon svg {
    width: 28px;
    height: 28px;
    fill: white;
}

.auth-logo h2 {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.auth-logo p {
    color: var(--text-secondary);
    font-size: 14px;
    margin-top: 4px;
}

/* Pestañas de Autenticación */
.auth-tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 25px;
}

.auth-tab-btn {
    flex: 1;
    text-align: center;
    padding: 10px 0;
    color: var(--text-muted);
    font-weight: 500;
    transition: var(--transition-fast);
    border-bottom: 2px solid transparent;
}

.auth-tab-btn:hover {
    color: var(--text-secondary);
}

.auth-tab-btn.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

/* Formularios de Autenticación */
.auth-form-group {
    margin-bottom: 20px;
    position: relative;
}

.auth-form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.auth-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.auth-input-icon {
    position: absolute;
    left: 14px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    pointer-events: none;
}

.auth-input-icon svg {
    width: 18px;
    height: 18px;
}

.auth-input {
    width: 100%;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 12px 14px 12px 42px;
    color: var(--text-primary);
    transition: var(--transition-fast);
    font-size: 14px;
}

.auth-input:focus {
    outline: none;
    border-color: var(--border-color-focus);
    box-shadow: var(--shadow-glow);
}

.auth-input::placeholder {
    color: var(--text-muted);
}

.auth-select {
    padding-left: 14px;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='white'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    background-size: 16px;
}

.auth-action-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    margin-bottom: 25px;
}

.forgot-link {
    color: var(--color-primary);
    transition: var(--transition-fast);
}

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

.btn-auth-submit {
    width: 100%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-info));
    color: white;
    font-weight: 600;
    padding: 14px;
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
    box-shadow: var(--shadow-glow);
}

.btn-auth-submit:hover {
    filter: brightness(1.15);
}

.auth-alerts {
    margin-bottom: 20px;
}

.alert {
    padding: 12px 16px;
    border-radius: var(--radius-md);
    font-size: 14px;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
}

.alert-danger {
    background-color: rgba(244, 63, 94, 0.15);
    border: 1px solid var(--color-danger);
    color: hsl(355, 90%, 75%);
}

.alert-success {
    background-color: rgba(16, 185, 129, 0.15);
    border: 1px solid var(--color-success);
    color: hsl(145, 90%, 75%);
}

/* ==========================================================================
   DISEÑO PRINCIPAL DEL SISTEMA (DASHBOARD WORKSPACE)
   ========================================================================== */
.app-layout {
    display: flex;
    height: 100vh;
    width: 100vw;
    overflow: hidden;
}

/* 1. BARRA LATERAL IZQUIERDA (SIDEBAR) */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    transition: var(--transition-normal);
    z-index: 100;
}

.sidebar-header {
    min-height: var(--header-height);
    height: auto;
    display: flex;
    align-items: center;
    padding: 16px 24px;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    font-weight: 700;
    font-size: 18px;
    letter-spacing: -0.5px;
}

.sidebar-logo-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--color-area), var(--color-info));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 10px;
}

.sidebar-logo-icon svg {
    width: 18px;
    height: 18px;
    fill: white;
}

.sidebar-logo span {
    background: linear-gradient(90deg, var(--text-primary), var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.sidebar-menu {
    flex: 1;
    padding: 24px 16px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    overflow-y: auto;
}

.menu-item {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: 14px;
    transition: var(--transition-fast);
}

.menu-item:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.menu-item.active {
    background-color: rgba(28, 137, 255, 0.15);
    color: var(--color-primary);
}

.menu-icon {
    display: flex;
    align-items: center;
    margin-right: 14px;
    color: inherit;
}

.menu-icon svg {
    width: 20px;
    height: 20px;
}

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--border-color);
    background-color: rgba(0, 0, 0, 0.1);
}

.user-profile-badge {
    display: flex;
    align-items: center;
    gap: 12px;
}

.profile-avatar {
    width: 38px;
    height: 38px;
    background-color: var(--bg-tertiary);
    border: 2px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    font-weight: 600;
    font-size: 14px;
}

.profile-info {
    flex: 1;
    overflow: hidden;
}

.profile-name {
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.profile-role {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-logout {
    color: var(--text-muted);
    padding: 8px;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.btn-logout:hover {
    color: var(--color-danger);
    background-color: rgba(244, 63, 94, 0.1);
}

/* 2. ÁREA DE CONTENIDO PRINCIPAL (DERECHA) */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
}

/* BARRA SUPERIOR (HEADER) */
.top-header {
    height: var(--header-height);
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 30px;
    flex-shrink: 0;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 20px;
}

.breadcrumb {
    font-weight: 600;
    font-size: 16px;
    color: var(--text-primary);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 15px;
}

/* Menú Tradicional Superior */
.top-nav-menu {
    display: flex;
    align-items: center;
    gap: 10px;
    border-right: 1px solid var(--border-color);
    padding-right: 15px;
    margin-right: 5px;
}

.top-nav-item {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.top-nav-item:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.header-notification {
    position: relative;
    padding: 8px;
    border-radius: 50%;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.header-notification:hover {
    color: var(--text-primary);
    background-color: var(--bg-card-hover);
}

.notification-badge {
    position: absolute;
    top: -2px;
    right: -2px;
    min-width: 16px;
    height: 16px;
    background-color: var(--color-danger);
    color: white;
    font-size: 9px;
    font-weight: 700;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 2px;
    box-shadow: 0 0 0 2px var(--bg-secondary);
}

.notification-dropdown-wrapper {
    position: relative;
    display: inline-block;
}

.notifications-dropdown {
    display: none;
    position: absolute;
    right: 0;
    top: 45px;
    width: 320px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    max-height: 400px;
    overflow-y: auto;
    padding: 8px 0;
}

.notification-item {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    flex-direction: column;
    gap: 4px;
}

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

.notification-item:hover {
    background-color: var(--bg-card-hover);
}

.notification-item-message {
    font-size: 13px;
    color: var(--text-primary);
    line-height: 1.4;
    word-break: break-word;
}

.notification-item-date {
    font-size: 11px;
    color: var(--text-secondary);
}

.notification-empty-state {
    padding: 24px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 13px;
}

/* 3. PESTAÑAS HORIZONTALES (TABS BAR) */
.tabs-bar {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    padding: 0 30px;
    gap: 5px;
    overflow-x: auto;
    flex-shrink: 0;
}

.tab-btn {
    padding: 14px 20px;
    color: var(--text-muted);
    font-weight: 500;
    font-size: 14px;
    position: relative;
    white-space: nowrap;
    transition: var(--transition-fast);
}

.tab-btn:hover {
    color: var(--text-secondary);
}

.tab-btn.active {
    color: var(--color-area);
    font-weight: 600;
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--color-area);
    box-shadow: 0 0 10px rgba(var(--color-area-rgb), 0.3);
}

/* 4. CONTENEDOR DE OPERATIVIDAD DINÁMICA */
.workspace {
    flex: 1;
    padding: 30px;
    overflow-y: auto;
    background-color: var(--bg-primary);
}

.tab-content {
    display: none;
    animation: fadeIn var(--transition-normal);
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   ESTILOS ESPECÍFICOS - CUADROS DE MANDO / DASHBOARD
   ========================================================================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.kpi-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.kpi-card:hover {
    transform: translateY(-2px);
    background-color: var(--bg-card-hover);
    border-color: var(--text-muted);
}

.kpi-label {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
}

.kpi-value {
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -1px;
}

.kpi-badge {
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 600;
}

.kpi-badge.success { background-color: rgba(16, 185, 129, 0.15); color: var(--color-success); }
.kpi-badge.warning { background-color: rgba(245, 158, 11, 0.15); color: var(--color-warning); }
.kpi-badge.danger { background-color: rgba(244, 63, 94, 0.15); color: var(--color-danger); }

.kpi-icon {
    width: 48px;
    height: 48px;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
}

.kpi-icon svg {
    width: 24px;
    height: 24px;
}

.charts-row {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 30px;
    margin-bottom: 30px;
}

@media (max-width: 900px) {
    .charts-row {
        grid-template-columns: 1fr;
    }
}

.panel-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
    box-shadow: var(--shadow-sm);
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 12px;
}

.panel-title {
    font-size: 16px;
    font-weight: 600;
}

/* Gráfico / SVG dinámico de SLAs o Cargas */
.chart-container {
    height: 250px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

/* Semáforos de Carga de Trabajo */
.workload-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.workload-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: var(--bg-tertiary);
    padding: 12px 16px;
    border-radius: var(--radius-md);
    border-left: 4px solid var(--border-color);
}

.workload-item.status-low { border-left-color: var(--color-success); }
.workload-item.status-medium { border-left-color: var(--color-warning); }
.workload-item.status-high { border-left-color: var(--color-danger); }

.workload-name {
    font-weight: 500;
    font-size: 14px;
}

.workload-count {
    font-size: 12px;
    font-weight: 600;
    background-color: var(--bg-primary);
    padding: 4px 8px;
    border-radius: var(--radius-sm);
}

/* ==========================================================================
   ESTILOS DE TABLAS Y CONTROLES
   ========================================================================== */
.controls-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.search-input-wrapper {
    position: relative;
    max-width: 350px;
    flex: 1;
}

.search-input-wrapper input {
    width: 100%;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 10px 14px 10px 38px;
    font-size: 14px;
}

.search-input-wrapper input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.search-icon-left {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.filter-group {
    display: flex;
    gap: 10px;
}

.select-control {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 10px 16px;
    font-size: 14px;
    outline: none;
    cursor: pointer;
    min-width: 140px;
}

.select-control:focus {
    border-color: var(--color-primary);
}

.btn-primary {
    background-color: var(--color-primary);
    color: white;
    font-weight: 500;
    font-size: 14px;
    padding: 10px 20px;
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary:hover {
    background-color: var(--color-primary-hover);
    box-shadow: var(--shadow-glow);
}

.btn-secondary {
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 14px;
    padding: 10px 20px;
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
}

.btn-secondary:hover {
    background-color: var(--bg-card-hover);
    color: var(--text-primary);
}

.table-responsive {
    overflow-x: auto;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background-color: var(--bg-card);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 14px;
}

.data-table th {
    background-color: var(--bg-secondary);
    padding: 16px;
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
}

.data-table td {
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

.data-table tbody tr {
    transition: var(--transition-fast);
}

.data-table tbody tr:hover {
    background-color: var(--bg-card-hover);
    cursor: pointer;
}

/* Estados / Prioridades */
.badge-status {
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-status.nuevo { background-color: rgba(28, 137, 255, 0.15); color: var(--color-primary); }
.badge-status.en_proceso { background-color: rgba(245, 158, 11, 0.15); color: var(--color-warning); }
.badge-status.resuelto { background-color: rgba(16, 185, 129, 0.15); color: var(--color-success); }
.badge-status.cerrado { background-color: var(--bg-tertiary); color: var(--text-muted); }

.badge-priority {
    padding: 3px 6px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
}
.badge-priority.critica { background-color: rgba(244, 63, 94, 0.15); color: var(--color-danger); }
.badge-priority.alta { color: hsl(15, 90%, 60%); background-color: rgba(249, 115, 22, 0.15); }
.badge-priority.media { color: var(--color-warning); background-color: rgba(245, 158, 11, 0.15); }
.badge-priority.baja { color: var(--text-muted); background-color: var(--bg-tertiary); }

/* ==========================================================================
   ESTILOS DEL MÓDULO TABLERO KANBAN
   ========================================================================== */
.kanban-board {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    align-items: start;
}

@media (max-width: 1024px) {
    .kanban-board {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .kanban-board {
        grid-template-columns: 1fr;
    }
}

.kanban-column {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px;
    min-height: 500px;
    display: flex;
    flex-direction: column;
}

.kanban-column-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.kanban-column-title {
    font-size: 14px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.kanban-column-counter {
    background-color: var(--bg-tertiary);
    font-size: 12px;
    padding: 2px 8px;
    border-radius: var(--radius-sm);
}

.kanban-cards-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
    flex-grow: 1;
    overflow-y: auto;
}

.kanban-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-fast);
    cursor: grab;
    border-left: 4px solid var(--border-color);
}

.kanban-card:active {
    cursor: grabbing;
}

.kanban-card:hover {
    transform: translateY(-1px);
    background-color: var(--bg-card-hover);
    border-color: var(--text-muted);
}

.kanban-card.prio-critica { border-left-color: var(--color-danger); }
.kanban-card.prio-alta { border-left-color: hsl(15, 90%, 60%); }
.kanban-card.prio-media { border-left-color: var(--color-warning); }
.kanban-card.prio-baja { border-left-color: var(--text-muted); }

.kanban-card-tag {
    font-size: 10px;
    text-transform: uppercase;
    font-weight: 700;
    color: var(--text-muted);
    margin-bottom: 6px;
}

.kanban-card-title {
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 8px;
}

.kanban-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 11px;
    color: var(--text-secondary);
    margin-top: 12px;
    border-top: 1px solid var(--border-color);
    padding-top: 8px;
}

.kanban-card-user {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* ==========================================================================
   DIAGRAMA DE GANTT INTEGRADO Y TABULAR
   ========================================================================== */
.gantt-container {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
    overflow-x: auto;
}

.gantt-grid {
    display: grid;
    grid-template-columns: 200px 1fr;
    min-width: 800px;
    border-collapse: collapse;
}

.gantt-row {
    display: contents;
}

.gantt-header {
    background-color: var(--bg-secondary);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 13px;
    padding: 12px 16px;
    border-bottom: 2px solid var(--border-color);
}

.gantt-cell-label {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-color);
    font-size: 13px;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.gantt-cell-timeline {
    position: relative;
    border-bottom: 1px solid var(--border-color);
    padding: 14px 0;
    background-image: linear-gradient(90deg, var(--border-color) 1px, transparent 1px);
    background-size: calc(100% / 15) 100%; /* Representa 15 días o bloques */
}

.gantt-bar {
    height: 24px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-info));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    padding: 0 10px;
    font-size: 11px;
    color: white;
    font-weight: 600;
    box-shadow: var(--shadow-sm);
    position: absolute;
}

/* ==========================================================================
   MATRIZ DE PRIORIZACIÓN DE REQUERIMIENTOS (IMPACTO VS URGENCIA)
   ========================================================================== */
.matrix-container {
    display: grid;
    grid-template-columns: 80px 1fr;
    align-items: center;
    gap: 15px;
}

.matrix-y-label {
    writing-mode: vertical-lr;
    text-transform: uppercase;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--text-muted);
    text-align: center;
}

.matrix-grid-wrapper {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.matrix-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(3, 160px);
    gap: 12px;
}

.matrix-cell {
    background-color: var(--bg-secondary);
    border: 1px dashed var(--border-color);
    border-radius: var(--radius-md);
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    overflow-y: auto;
    transition: var(--transition-fast);
}

.matrix-cell:hover {
    background-color: var(--bg-tertiary);
    border-style: solid;
}

.matrix-cell-header {
    font-size: 11px;
    text-transform: uppercase;
    font-weight: 700;
    color: var(--text-muted);
    display: flex;
    justify-content: space-between;
}

.matrix-cell-urg-critica { background-color: rgba(244, 63, 94, 0.05); }
.matrix-cell-urg-alta { background-color: rgba(249, 115, 22, 0.05); }
.matrix-cell-urg-media { background-color: rgba(245, 158, 11, 0.05); }

.matrix-item {
    font-size: 12px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 8px 10px;
    border-radius: var(--radius-sm);
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.matrix-x-labels {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    text-align: center;
    text-transform: uppercase;
    font-size: 12px;
    font-weight: 700;
    color: var(--text-muted);
}

/* ==========================================================================
   FORMULARIOS DE CREACIÓN Y EDICIÓN
   ========================================================================== */
.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    max-width: 800px;
}

@media (max-width: 600px) {
    .form-grid {
        grid-template-columns: 1fr;
    }
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-control {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 12px;
    font-size: 14px;
    transition: var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
}

.form-control-checkbox {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-size: 14px;
    user-select: none;
}

.form-control-checkbox input {
    width: 18px;
    height: 18px;
}

/* ==========================================================================
   MODAL DE DETALLE Y SISTEMA DE CHAT / COMENTARIOS
   ========================================================================== */
.drawer-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    z-index: 500;
    display: none;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.drawer-overlay.active {
    display: block;
    opacity: 1;
}

.drawer {
    position: fixed;
    top: 0;
    right: -550px;
    width: 100%;
    max-width: 500px;
    height: 100vh;
    background-color: var(--bg-secondary);
    border-left: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    z-index: 501;
    display: flex;
    flex-direction: column;
    transition: right var(--transition-normal);
}

.drawer.active {
    right: 0;
}

.drawer-header {
    height: 70px;
    border-bottom: 1px solid var(--border-color);
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.drawer-title {
    font-size: 16px;
    font-weight: 600;
}

.btn-close-drawer {
    color: var(--text-muted);
    padding: 8px;
    border-radius: 50%;
    transition: var(--transition-fast);
}

.btn-close-drawer:hover {
    color: var(--text-primary);
    background-color: var(--bg-tertiary);
}

.drawer-body {
    flex: 1;
    padding: 24px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.ticket-meta-block {
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.meta-row {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
}

.meta-label {
    color: var(--text-muted);
}

.meta-value {
    font-weight: 500;
}

/* Estilos de Conversación / Chat en Ticket */
.chat-section {
    display: flex;
    flex-direction: column;
    height: 320px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background-color: var(--bg-card);
    overflow: hidden;
}

.chat-messages {
    flex: 1;
    padding: 16px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.chat-bubble {
    max-width: 80%;
    padding: 10px 14px;
    border-radius: var(--radius-md);
    font-size: 13px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.chat-bubble.received {
    align-self: flex-start;
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.chat-bubble.sent {
    align-self: flex-end;
    background-color: rgba(28, 137, 255, 0.15);
    border: 1px solid rgba(28, 137, 255, 0.3);
    color: var(--text-primary);
}

.chat-sender {
    font-weight: 700;
    font-size: 11px;
    color: var(--color-primary);
}

.chat-time {
    font-size: 9px;
    color: var(--text-muted);
    align-self: flex-end;
}

.chat-input-bar {
    padding: 12px;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 8px;
    background-color: var(--bg-secondary);
}

.chat-input {
    flex: 1;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-size: 13px;
}

.chat-input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.btn-send-chat {
    background-color: var(--color-primary);
    color: white;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    transition: var(--transition-fast);
}

.btn-send-chat:hover {
    background-color: var(--color-primary-hover);
}

/* ==========================================================================
   BASE DE CONOCIMIENTO (KNOWLEDGE BASE)
   ========================================================================== */
.kb-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.kb-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    transition: var(--transition-fast);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.kb-card:hover {
    transform: translateY(-2px);
    border-color: var(--text-muted);
}

.kb-card-category {
    font-size: 11px;
    font-weight: 600;
    color: var(--color-primary);
    text-transform: uppercase;
    margin-bottom: 8px;
}

.kb-card-title {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 12px;
}

.kb-card-problem {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 15px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.kb-card-footer {
    margin-top: auto;
    font-size: 11px;
    color: var(--text-muted);
    border-top: 1px solid var(--border-color);
    padding-top: 10px;
    display: flex;
    justify-content: space-between;
}

/* ==========================================================================
   AREA SWITCHER BUTTONS
   ========================================================================== */
.area-switch-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
}
.area-switch-btn.active {
    background-color: var(--color-area);
    color: white;
    box-shadow: 0 0 15px rgba(var(--color-area-rgb), 0.25);
}

/* ==========================================================================
   SOPORTE PARA MODO CLARO (LIGHT MODE)
   ========================================================================== */
html.light-mode {
    --bg-primary: hsl(220, 20%, 97%);
    --bg-secondary: hsl(0, 0%, 100%);
    --bg-tertiary: hsl(220, 15%, 92%);
    --bg-card: hsl(0, 0%, 100%);
    --bg-card-hover: hsl(220, 15%, 95%);
    
    --text-primary: hsl(222, 25%, 12%);
    --text-secondary: hsl(222, 15%, 35%);
    --text-muted: hsl(222, 10%, 55%);
    
    --border-color: hsl(220, 15%, 88%);
    --border-color-focus: var(--color-primary);
    
    --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.1);
}

/* Ajustes específicos de elementos en Modo Claro */
html.light-mode .sidebar {
    background-color: hsl(220, 15%, 94%);
}
html.light-mode .top-header {
    background-color: hsl(220, 15%, 94%);
}
html.light-mode .tabs-bar {
    background-color: hsl(220, 15%, 94%);
}
html.light-mode .chat-input-bar {
    background-color: hsl(220, 15%, 94%);
}
html.light-mode .sidebar-footer {
    background-color: rgba(0, 0, 0, 0.03);
}
html.light-mode .gantt-grid {
    background-color: var(--bg-card);
}
html.light-mode .gantt-header {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}
html.light-mode .gantt-row {
    border-bottom-color: var(--border-color);
}
html.light-mode .gantt-cell-label {
    border-right-color: var(--border-color);
    background-color: var(--bg-primary);
}
html.light-mode .area-switcher-container {
    background-color: rgba(0, 0, 0, 0.03) !important;
}
html.light-mode .badge-status {
    box-shadow: none;
}
html.light-mode .kanban-card {
    background-color: var(--bg-card);
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}
html.light-mode .matrix-cell {
    background-color: var(--bg-card);
}

/* Selectores visuales del tema */
.theme-selector-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
    margin-top: 15px;
}

.theme-card {
    background-color: var(--bg-tertiary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
    cursor: pointer;
    transition: var(--transition-normal);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.theme-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-2px);
}

.theme-card.active {
    border-color: var(--color-primary);
    background-color: rgba(var(--color-primary-rgb), 0.08);
    box-shadow: var(--shadow-glow);
}

.theme-preview-circle {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    display: flex;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.theme-card-title {
    font-size: 14px;
    font-weight: 600;
}

/* 4.5. NOTIFICATIONS DRAWER STYLING */
.tab-btn.active {
    border-bottom: 2px solid var(--color-primary) !important;
    color: var(--text-primary) !important;
}

.notif-drawer-item {
    padding: 14px 18px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    flex-direction: column;
    gap: 6px;
    position: relative;
    overflow: hidden;
}

.notif-drawer-item.unread {
    border-left: 4px solid var(--color-primary);
    background-color: var(--bg-card);
}

.notif-drawer-item:hover {
    background-color: var(--bg-card-hover);
    transform: translateX(2px);
}

.notif-drawer-message {
    font-size: 13.5px;
    font-weight: 500;
    color: var(--text-primary);
    line-height: 1.45;
}

.notif-drawer-item.unread .notif-drawer-message {
    font-weight: 700;
}

.notif-drawer-date {
    font-size: 11px;
    color: var(--text-secondary);
}