/*
 * ============================================================
 * Mesa de Soporte — app.css
 * CTF-SISTEMA-TICKETS-V1.0-APROBADO-20260503
 *
 * Fuente de verdad visual: UI_UX.md V1.1
 * Este archivo define los tokens del sistema y sobreescribe
 * los valores por defecto de Bootstrap 5.
 *
 * ESTRUCTURA:
 *   1. Variables CSS — tokens de UI_UX.md V1.1
 *   2. Sobreescritura de variables Bootstrap
 *   3. Reset y base tipográfica
 *   4. Layout base — tres paneles
 *   5. Componentes — cards, botones, badges, formularios
 *   6. Navegación — sidebar, header, breadcrumb
 *   7. Estados de interfaz — vacío, cargando, error
 *   8. Utilidades
 *
 * NOTA BOOTSTRAP (Fase 0.1):
 *   Bootstrap 5.3.3 está incluido localmente desde Fase 0.1.
 *   No se usa CDN. No modificar bootstrap.min.css ni bootstrap.bundle.min.js.
 *   Las variables :root están definidas en formato compatible con las
 *   custom properties de Bootstrap 5 para que las sobreescriban correctamente.
 * ============================================================
 */

/* ============================================================
   1. VARIABLES CSS — Tokens de UI_UX.md V1.1
   ============================================================ */

:root {

    /* ── Fondos ──────────────────────────────────────────── */
    --color-bg-primary:   #FFFFFF;
    --color-bg-secondary: #F7F8FA;
    --color-bg-card:      #FFFFFF;
    --color-bg-hover:     #F9FAFB;

    /* ── Texto ───────────────────────────────────────────── */
    --color-text-primary:    #111827;
    --color-text-secondary:  #6B7280;
    --color-text-disabled:   #D1D5DB;
    --color-text-on-primary: #FFFFFF;

    /* ── Acción principal — Azul tecnológico ─────────────── */
    /* UI_UX.md §3: Color de acción principal del sistema    */
    --color-primary:         #2563EB;
    --color-primary-hover:   #1D4ED8;
    --color-primary-active:  #1E40AF;
    --color-primary-light:   #DBEAFE;
    --color-primary-on-light:#1D4ED8;

    /* ── Acento secundario — Violeta tecnológico ─────────── */
    /* UI_UX.md §3: USO RESTRINGIDO en V1.                   */
    /* Solo para automatización, IA o integraciones futuras. */
    /* NO usar como color de acción en flujos principales.   */
    --color-accent:          #7C3AED;
    --color-accent-light:    #EDE9FE;
    --color-accent-on-light: #6D28D9;

    /* ── Semánticos ──────────────────────────────────────── */
    --color-success:         #16A34A;
    --color-success-light:   #DCFCE7;
    --color-warning:         #D97706;
    --color-warning-light:   #FEF3C7;
    --color-danger:          #DC2626;
    --color-danger-light:    #FEF2F2;

    /* ── Bordes ──────────────────────────────────────────── */
    --color-border:          #E5E7EB;
    --color-border-strong:   #D1D5DB;

    /* ── Sombras — UI_UX.md §3 ───────────────────────────── */
    --shadow-card:    0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --shadow-overlay: 0 4px 16px rgba(0,0,0,0.10);

    /* ── Radios de borde — UI_UX.md §5 ──────────────────── */
    --radius-card:   8px;
    --radius-btn:    6px;
    --radius-input:  6px;
    --radius-badge:  4px;
    --radius-modal:  10px;
    --radius-avatar: 50%;
    --radius-banner: 8px;

    /* ── Espaciado base 4px — UI_UX.md §5 ───────────────── */
    --space-1:  4px;
    --space-2:  8px;
    --space-3:  12px;
    --space-4:  16px;
    --space-5:  20px;
    --space-6:  24px;
    --space-8:  32px;

    /* ── Tipografía — UI_UX.md §4 ────────────────────────── */
    --font-sans:  'Inter', 'Manrope', 'DM Sans', system-ui, sans-serif;
    --font-mono:  'JetBrains Mono', monospace;

    --text-h1:    22px;
    --text-h2:    18px;
    --text-h3:    15px;
    --text-body:  14px;
    --text-small: 12px;
    --text-label: 13px;
    --text-mono:  13px;

    --weight-regular:  400;
    --weight-medium:   500;
    --weight-semibold: 600;

    --leading-tight:   1.2;
    --leading-snug:    1.3;
    --leading-normal:  1.5;
    --leading-loose:   1.4;

    /* ── Layout — UI_UX.md §6 ────────────────────────────── */
    --sidebar-width:           220px;
    --sidebar-collapsed-width: 56px;
    --header-height-client:    60px;
    --header-height-team:      56px;

    /* ── Transiciones — UI_UX.md §14 ────────────────────── */
    --transition-base:     150ms ease;
    --transition-sidebar:  200ms ease;
    --transition-modal-in: 150ms ease-out;
}

/* ============================================================
   2. SOBREESCRITURA DE VARIABLES BOOTSTRAP 5
   Bootstrap 5.3.3 está incluido localmente desde Fase 0.1.
   Este bloque sobreescribe las custom properties de Bootstrap con la paleta
   de UI_UX.md V1.1. Se carga después de bootstrap.min.css para tener precedencia.
   ============================================================ */

:root {
    /* Colores del sistema Bootstrap — reemplazados por paleta UI_UX.md */
    --bs-primary:        var(--color-primary);
    --bs-primary-rgb:    37, 99, 235;
    --bs-secondary:      var(--color-text-secondary);
    --bs-success:        var(--color-success);
    --bs-danger:         var(--color-danger);
    --bs-warning:        var(--color-warning);
    --bs-info:           var(--color-accent);
    --bs-light:          var(--color-bg-secondary);
    --bs-dark:           var(--color-text-primary);

    /* Tipografía Bootstrap */
    --bs-font-sans-serif: var(--font-sans);
    --bs-font-monospace:  var(--font-mono);
    --bs-body-font-size:  var(--text-body);
    --bs-body-color:      var(--color-text-primary);
    --bs-body-bg:         var(--color-bg-secondary);

    /* Radios Bootstrap */
    --bs-border-radius:    var(--radius-card);
    --bs-border-radius-sm: var(--radius-btn);
    --bs-border-radius-lg: var(--radius-modal);
    --bs-border-radius-pill: 50px;

    /* Bordes Bootstrap */
    --bs-border-color:    var(--color-border);
    --bs-border-color-translucent: rgba(229, 231, 235, 0.5);

    /* Links Bootstrap */
    --bs-link-color:       var(--color-primary);
    --bs-link-hover-color: var(--color-primary-hover);
}

/* ============================================================
   3. RESET Y BASE TIPOGRÁFICA
   ============================================================ */

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    font-size: var(--text-body);
    -webkit-text-size-adjust: 100%;
    overflow-x: hidden; /* Sin scroll horizontal — UI_UX.md §15 */
}

body {
    font-family: var(--font-sans);
    font-size: var(--text-body);
    font-weight: var(--weight-regular);
    line-height: var(--leading-normal);
    color: var(--color-text-primary);
    background-color: var(--color-bg-secondary);
    margin: 0;
    overflow-x: hidden;
}

/* Jerarquía tipográfica — UI_UX.md §4 */
h1, .h1 {
    font-size: var(--text-h1);
    font-weight: var(--weight-semibold);
    line-height: var(--leading-tight);
    color: var(--color-text-primary);
    margin-bottom: var(--space-4);
}

h2, .h2 {
    font-size: var(--text-h2);
    font-weight: var(--weight-semibold);
    line-height: var(--leading-tight);
    color: var(--color-text-primary);
    margin-bottom: var(--space-3);
}

h3, .h3 {
    font-size: var(--text-h3);
    font-weight: var(--weight-medium);
    line-height: var(--leading-snug);
    color: var(--color-text-primary);
    margin-bottom: var(--space-2);
}

p {
    margin-bottom: var(--space-4);
}

/* Nunca menor a 12px — UI_UX.md §4 */
small, .text-small {
    font-size: var(--text-small);
    line-height: var(--leading-loose);
}

/* Label de formulario — UI_UX.md §4 */
.text-label {
    font-size: var(--text-label);
    font-weight: var(--weight-medium);
    line-height: var(--leading-snug);
}

/* Monospace — números de ticket, IDs — UI_UX.md §4 */
.text-mono,
.ticket-number {
    font-family: var(--font-mono);
    font-size: var(--text-mono);
    color: var(--color-text-secondary);
}

/* Colores de texto semánticos */
.text-primary-color   { color: var(--color-text-primary) !important; }
.text-secondary-color { color: var(--color-text-secondary) !important; }
.text-disabled        { color: var(--color-text-disabled) !important; }
.text-success-color   { color: var(--color-success) !important; }
.text-danger-color    { color: var(--color-danger) !important; }
.text-warning-color   { color: var(--color-warning) !important; }

/* Foco visible — UI_UX.md §16 Accesibilidad WCAG AA */
:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* ============================================================
   4. LAYOUT BASE — UI_UX.md §6
   ============================================================ */

/* ── Panel del Equipo y Super Admin: sidebar + header + contenido */
.layout-app {
    display: flex;
    min-height: 100vh;
}

/* Sidebar — UI_UX.md §6: 220px desktop, 56px tablet, oculto mobile */
.sidebar {
    width: var(--sidebar-width);
    min-height: 100vh;
    background-color: var(--color-bg-secondary);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    transition: transform var(--transition-sidebar),
                width var(--transition-sidebar);
    overflow-y: auto;
    overflow-x: hidden;
}

/* Área de contenido principal (desplazada por el sidebar) */
.layout-main {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    min-width: 0; /* evita overflow en flex */
}

/* Header superior — UI_UX.md §7: 56px, blanco, borde inferior */
.app-header {
    height: var(--header-height-team);
    background-color: var(--color-bg-primary);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    padding: 0 var(--space-6);
    gap: var(--space-4);
    position: sticky;
    top: 0;
    z-index: 50;
    flex-shrink: 0;
}

/* Área de contenido — UI_UX.md §6: fondo secundario, padding 24px */
.content-area {
    flex: 1;
    padding: var(--space-6);
    background-color: var(--color-bg-secondary);
}

/* ── Panel del Cliente: header horizontal + contenido */
.layout-client {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header del cliente — UI_UX.md §7: 60px, blanco */
.client-header {
    height: var(--header-height-client);
    background-color: var(--color-bg-primary);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    padding: 0 var(--space-6);
    gap: var(--space-4);
    position: sticky;
    top: 0;
    z-index: 50;
    flex-shrink: 0;
}

.client-header .header-brand {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    text-decoration: none;
    flex-shrink: 0;
}

.client-header .header-brand img {
    height: 36px;
    width: auto;
}

/* Texto secundario "Mesa de Soporte" — UI_UX.md §7 */
.client-header .brand-subtitle {
    font-size: var(--text-small);
    color: var(--color-text-secondary);
    font-weight: var(--weight-regular);
    line-height: 1;
}

.client-header nav {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin-left: auto;
}

/* Layout mínimo para login */
.layout-auth {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-bg-secondary);
    padding: var(--space-4);
}

/* ============================================================
   5. COMPONENTES
   ============================================================ */

/* ── Cards — UI_UX.md §5 y §9 ─────────────────────────────── */
.card {
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    padding: var(--space-4);
}

.card-header {
    padding-bottom: var(--space-3);
    margin-bottom: var(--space-4);
    border-bottom: 1px solid var(--color-border);
}

/* Card de ticket — UI_UX.md §9 */
.ticket-card {
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    padding: var(--space-4);
    cursor: pointer;
    transition: background-color var(--transition-base);
    text-decoration: none;
    display: block;
    color: inherit;
}

.ticket-card:hover {
    background-color: var(--color-bg-hover);
    text-decoration: none;
    color: inherit;
}

/* Borde izquierdo rojo para urgentes — UI_UX.md §9 */
.ticket-card.priority-urgent {
    border-left: 3px solid var(--color-danger);
}

/* ── Botones — UI_UX.md §5 ────────────────────────────────── */
/* Los colores por defecto de Bootstrap 5.3.3 ya están           */
/* sobreescritos por la paleta definida en UI_UX.md V1.1         */
/* mediante app.css. Bootstrap está incluido localmente           */
/* desde Fase 0.1.                                               */

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: 8px 16px;
    font-size: var(--text-body);
    font-weight: var(--weight-medium);
    font-family: var(--font-sans);
    border-radius: var(--radius-btn);
    border: 1px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: background-color var(--transition-base),
                border-color var(--transition-base),
                color var(--transition-base);
    white-space: nowrap;
}

.btn:disabled,
.btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* Botón primario — UI_UX.md §3 azul tecnológico */
.btn-primary {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-text-on-primary);
}

.btn-primary:hover {
    background-color: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
    color: var(--color-text-on-primary);
}

.btn-primary:active {
    background-color: var(--color-primary-active);
    border-color: var(--color-primary-active);
}

/* Botón secundario */
.btn-secondary {
    background-color: var(--color-bg-primary);
    border-color: var(--color-border);
    color: var(--color-text-primary);
}

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

/* Botón danger */
.btn-danger {
    background-color: var(--color-danger);
    border-color: var(--color-danger);
    color: #FFFFFF;
}

.btn-danger:hover {
    background-color: #B91C1C;
    border-color: #B91C1C;
    color: #FFFFFF;
}

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

.btn-outline:hover {
    background-color: var(--color-primary-light);
    color: var(--color-primary-on-light);
}

/* Tamaño pequeño */
.btn-sm {
    padding: 4px 12px;
    font-size: var(--text-label);
}

/* ── Badges de estado — UI_UX.md §9 ──────────────────────── */
/* REGLA: No existe badge "Cerrado" — CONTRATO.md §18         */

.badge-status {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    border-radius: var(--radius-badge);
    font-size: var(--text-label);
    font-weight: var(--weight-medium);
    line-height: var(--leading-snug);
    white-space: nowrap;
}

.badge-nuevo {
    background-color: #DBEAFE;
    color: #1D4ED8;
}

.badge-en-revision {
    background-color: #EDE9FE;
    color: #6D28D9;
}

.badge-en-proceso {
    background-color: #FEF3C7;
    color: #B45309;
}

.badge-esperando-cliente {
    background-color: #FFEDD5;
    color: #C2410C;
}

.badge-derivado {
    background-color: #F3F4F6;
    color: #374151;
}

/* Escalado: violeta — automatización — UI_UX.md §9 (CA-UI-15) */
.badge-escalado {
    background-color: #EDE9FE;
    color: #6D28D9;
}

.badge-resuelto {
    background-color: #DCFCE7;
    color: #15803D;
}

/* ── Badges de prioridad — UI_UX.md §9 ───────────────────── */

.badge-priority {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    border-radius: var(--radius-badge);
    font-size: var(--text-label);
    font-weight: var(--weight-medium);
    white-space: nowrap;
}

.badge-priority-baja    { color: #6B7280; }
.badge-priority-media   { color: #2563EB; }
.badge-priority-alta    { color: #D97706; }
.badge-priority-urgente {
    color: #DC2626;
    background-color: #FEF2F2;
}

/* ── Formularios — UI_UX.md §5 y §10 ─────────────────────── */

.form-label {
    font-size: var(--text-label);
    font-weight: var(--weight-medium);
    color: var(--color-text-primary);
    margin-bottom: var(--space-1);
    display: block;
}

.form-control,
.form-select {
    width: 100%;
    padding: 8px 12px;
    font-size: var(--text-body);
    font-family: var(--font-sans);
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-input);
    transition: border-color var(--transition-base),
                box-shadow var(--transition-base);
    appearance: none;
}

.form-control:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.form-control::placeholder {
    color: var(--color-text-disabled);
}

.form-control:disabled,
.form-select:disabled {
    background-color: var(--color-bg-secondary);
    color: var(--color-text-secondary);
    cursor: not-allowed;
}

/* Textarea — UI_UX.md §10: altura mínima 5 líneas visibles */
textarea.form-control {
    min-height: calc(var(--text-body) * var(--leading-normal) * 5 + 16px);
    resize: vertical;
}

/* Estado de error en campo */
.form-control.is-invalid,
.form-select.is-invalid {
    border-color: var(--color-danger);
}

.form-control.is-invalid:focus {
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.15);
}

/* Mensaje de error debajo del campo */
.invalid-feedback {
    font-size: var(--text-small);
    color: var(--color-danger);
    margin-top: var(--space-1);
    display: block;
}

/* Texto de ayuda */
.form-text {
    font-size: var(--text-small);
    color: var(--color-text-secondary);
    margin-top: var(--space-1);
}

/* Separación entre campos — UI_UX.md §5: 16px */
.form-group {
    margin-bottom: var(--space-4);
}

/* ── Inputs de login — card centrada ──────────────────────── */
.auth-card {
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    padding: var(--space-8);
    width: 100%;
    max-width: 400px;
}

/* ── Alertas y mensajes ────────────────────────────────────── */
.alert {
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-banner);
    font-size: var(--text-body);
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
}

.alert-danger {
    background-color: var(--color-danger-light);
    color: var(--color-danger);
    border: 1px solid #FECACA;
}

.alert-success {
    background-color: var(--color-success-light);
    color: var(--color-success);
    border: 1px solid #BBF7D0;
}

.alert-warning {
    background-color: var(--color-warning-light);
    color: var(--color-warning);
    border: 1px solid #FDE68A;
}

/* Banner de incidente — UI_UX.md §12 */
.banner-incident {
    background-color: var(--color-warning-light);
    border-left: 4px solid var(--color-warning);
    border-radius: 0;
    padding: var(--space-3) var(--space-6);
    font-size: var(--text-body);
}

/* Banner de cuenta pendiente — UI_UX.md §12 */
.banner-account-pending {
    background-color: var(--color-danger-light);
    border-left: 4px solid var(--color-danger);
    padding: var(--space-4) var(--space-6);
    font-size: var(--text-body);
}

/* ============================================================
   6. NAVEGACIÓN
   ============================================================ */

/* ── Sidebar — UI_UX.md §8 ────────────────────────────────── */

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-4);
    border-bottom: 1px solid var(--color-border);
    text-decoration: none;
    color: var(--color-text-primary);
    font-weight: var(--weight-semibold);
    min-height: var(--header-height-team);
    flex-shrink: 0;
}

.sidebar-nav {
    flex: 1;
    padding: var(--space-3) var(--space-3);
    overflow-y: auto;
}

.sidebar-nav-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-btn);
    font-size: var(--text-body);
    font-weight: var(--weight-medium);
    color: var(--color-text-primary);
    text-decoration: none;
    transition: background-color var(--transition-base),
                color var(--transition-base);
    white-space: nowrap;
    overflow: hidden;
}

.sidebar-nav-item:hover {
    background-color: var(--color-bg-hover);
    color: var(--color-text-primary);
    text-decoration: none;
}

/* Ítem activo — UI_UX.md §8: fondo #EFF6FF, texto #2563EB */
.sidebar-nav-item.active {
    background-color: #EFF6FF;
    color: var(--color-primary);
}

.sidebar-nav-item .nav-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    color: currentColor;
}

.sidebar-nav-item .nav-label {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Badge numérico en ítem del sidebar (alertas) */
.nav-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    padding: 0 4px;
    border-radius: 10px;
    font-size: 11px;
    font-weight: var(--weight-semibold);
    background-color: var(--color-danger);
    color: #FFFFFF;
    flex-shrink: 0;
}

.sidebar-footer {
    padding: var(--space-3) var(--space-4);
    border-top: 1px solid var(--color-border);
    flex-shrink: 0;
}

/* ── Header de app — Equipo y Admin ──────────────────────── */

.header-breadcrumb {
    flex: 1;
    font-size: var(--text-small);
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    gap: var(--space-2);
    min-width: 0;
}

.header-breadcrumb a {
    color: var(--color-text-secondary);
    text-decoration: none;
}

.header-breadcrumb a:hover {
    color: var(--color-primary);
}

.header-breadcrumb .separator {
    color: var(--color-text-disabled);
    font-size: var(--text-small);
}

.header-breadcrumb .current {
    color: var(--color-text-primary);
    font-weight: var(--weight-medium);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ── Avatar circular — UI_UX.md §5 ────────────────────────── */
.avatar {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-avatar);
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-label);
    font-weight: var(--weight-semibold);
    flex-shrink: 0;
    text-transform: uppercase;
}

/* ── Hamburguesa — mobile ──────────────────────────────────── */
.btn-hamburger {
    display: none;
    background: none;
    border: none;
    padding: var(--space-2);
    cursor: pointer;
    color: var(--color-text-secondary);
    border-radius: var(--radius-btn);
}

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

/* Overlay para sidebar en mobile */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.4);
    z-index: 99;
}

/* ============================================================
   7. ESTADOS DE INTERFAZ — UI_UX.md §11
   ============================================================ */

/* ── Estado vacío ─────────────────────────────────────────── */
/* CA-UI-10: Ninguna pantalla en blanco. Mensaje + CTA.        */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--space-8) var(--space-6);
    min-height: 320px;
}

.empty-state-icon {
    width: 56px;
    height: 56px;
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-avatar);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-4);
    color: var(--color-text-secondary);
}

.empty-state h3 {
    font-size: var(--text-h3);
    font-weight: var(--weight-medium);
    color: var(--color-text-primary);
    margin-bottom: var(--space-2);
}

.empty-state p {
    font-size: var(--text-body);
    color: var(--color-text-secondary);
    max-width: 360px;
    margin: 0 auto var(--space-5);
}

/* ── Páginas de error ─────────────────────────────────────── */
.error-page {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    min-height: 60vh;
    padding: var(--space-8);
}

.error-code {
    font-size: 64px;
    font-weight: var(--weight-semibold);
    color: var(--color-text-disabled);
    line-height: 1;
    margin-bottom: var(--space-4);
}

/* ── Divider del hilo del ticket — UI_UX.md §9 ────────────── */
.thread-divider {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-small);
    color: var(--color-text-secondary);
    margin: var(--space-4) 0;
}

.thread-divider::before,
.thread-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background-color: var(--color-border);
}

/* ============================================================
   8. RESPONSIVE — UI_UX.md §15
   ============================================================ */

/* ── Tablet (max 1024px) ──────────────────────────────────── */
@media (max-width: 1024px) {
    .sidebar {
        width: var(--sidebar-collapsed-width);
    }

    .sidebar .nav-label,
    .sidebar .sidebar-brand span,
    .sidebar .sidebar-footer-info {
        display: none;
    }

    .layout-main {
        margin-left: var(--sidebar-collapsed-width);
    }

    .sidebar-nav-item {
        justify-content: center;
        padding: var(--space-2);
    }
}

/* ── Mobile (max 768px) ───────────────────────────────────── */
@media (max-width: 768px) {

    /* Sidebar oculto en mobile — UI_UX.md §15 */
    .sidebar {
        transform: translateX(-100%);
        width: var(--sidebar-width);
        z-index: 200;
    }

    .sidebar.is-open {
        transform: translateX(0);
    }

    .sidebar-overlay.is-visible {
        display: block;
    }

    /* Restaurar labels en sidebar cuando está expandido en mobile */
    .sidebar.is-open .nav-label,
    .sidebar.is-open .sidebar-brand span {
        display: block;
    }

    .sidebar.is-open .sidebar-nav-item {
        justify-content: flex-start;
        padding: var(--space-2) var(--space-3);
    }

    .layout-main {
        margin-left: 0;
    }

    .btn-hamburger {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .app-header {
        padding: 0 var(--space-4);
    }

    /* Formularios en una columna — UI_UX.md §15 */
    .form-row {
        flex-direction: column;
    }

    .form-row > * {
        width: 100% !important;
    }

    /* Contenido con padding reducido */
    .content-area {
        padding: var(--space-4);
    }

    .client-header {
        padding: 0 var(--space-4);
    }

    /* Panel Super Admin en mobile: simplificado */
    .admin-metrics-grid {
        grid-template-columns: 1fr;
    }
}

/* ── Sin scroll horizontal — UI_UX.md §15 ─────────────────── */
@media (max-width: 768px) {
    body,
    .layout-app,
    .layout-client,
    .layout-main {
        overflow-x: hidden;
        max-width: 100vw;
    }
}

/* ============================================================
   8. UTILIDADES
   ============================================================ */

/* Separación de cards en listado — UI_UX.md §5: 8px */
.card-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

/* Grid de métricas — Super Admin */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-4);
}

/* Tabla envuelta para scroll en mobile */
.table-responsive-x {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* Truncado con ellipsis */
.text-truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Centrado flex */
.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Gap utilities */
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }

/* Ocultar visualmente pero mantener en el DOM para accesibilidad */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ============================================================
   FASE 0.6 — Estilos de layout visual
   CTF-SISTEMA-TICKETS-V1.0-APROBADO-20260503
   Fuente de verdad: UI_UX.md V1.1
   Los tokens de :root definidos arriba se usan aquí.
   No se eliminan ni sobreescriben variables existentes.
   ============================================================ */

/* ── Reset body para layouts de app ─────────────────────────── */
.ms-body-app,
.ms-body-client {
    margin: 0;
    padding: 0;
    overflow-x: hidden;
    background-color: var(--color-bg-secondary);
    font-family: var(--font-sans);
    color: var(--color-text-primary);
}

.ms-auth-body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    background-color: var(--color-bg-secondary);
    font-family: var(--font-sans);
}

/* ── Login — UI_UX.md §5 ─────────────────────────────────────── */
.ms-login-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
}

.ms-login-card {
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    padding: 2rem;
    width: 100%;
    max-width: 420px;
}

.ms-login-logo {
    display: block;
    margin: 0 auto var(--space-3);
}

.ms-login-title {
    font-size: var(--text-h2);
    font-weight: var(--weight-semibold);
    color: var(--color-text-primary);
    text-align: center;
    margin: 0 0 var(--space-1);
}

.ms-login-subtitle {
    font-size: var(--text-small);
    color: var(--color-text-secondary);
    text-align: center;
    margin: 0 0 var(--space-5);
}

.ms-input {
    border-radius: var(--radius-input);
    border-color: var(--color-border);
    font-size: var(--text-body);
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.ms-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.ms-btn-login {
    border-radius: var(--radius-btn);
    font-size: var(--text-body);
    font-weight: var(--weight-medium);
    padding: 10px 16px;
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    transition: background-color var(--transition-base);
}

.ms-btn-login:hover {
    background-color: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
}

.ms-login-help {
    font-size: var(--text-small);
    color: var(--color-text-secondary);
    margin: 0;
}

/* ── Sidebar — UI_UX.md §6 ──────────────────────────────────── */
.ms-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 220px;
    background-color: var(--color-bg-secondary);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    z-index: 200;
    transition: transform var(--transition-sidebar), width var(--transition-sidebar);
    overflow-y: auto;
    overflow-x: hidden;
}

.ms-sidebar-brand {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: 0 var(--space-4);
    height: 56px;
    border-bottom: 1px solid var(--color-border);
    flex-shrink: 0;
    text-decoration: none;
    color: var(--color-text-primary);
}

.ms-sidebar-brand-name {
    font-size: var(--text-body);
    font-weight: var(--weight-semibold);
    color: var(--color-text-primary);
    white-space: nowrap;
    overflow: hidden;
}

.ms-sidebar-nav {
    flex: 1;
    padding: var(--space-3);
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.ms-sidebar-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-btn);
    font-size: var(--text-body);
    font-weight: var(--weight-medium);
    color: var(--color-text-primary);
    text-decoration: none;
    transition: background-color var(--transition-base), color var(--transition-base);
    white-space: nowrap;
    overflow: hidden;
}

.ms-sidebar-item:hover {
    background-color: var(--color-bg-hover);
    color: var(--color-text-primary);
    text-decoration: none;
}

/* Ítem activo — UI_UX.md §8 */
.ms-sidebar-item--active {
    background-color: #EFF6FF;
    color: var(--color-primary) !important;
}

.ms-sidebar-item--active:hover {
    background-color: #DBEAFE;
}

.ms-sidebar-icon {
    flex-shrink: 0;
    color: currentColor;
}

.ms-sidebar-label {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Footer del sidebar: avatar + nombre + logout */
.ms-sidebar-footer {
    padding: var(--space-3) var(--space-4);
    border-top: 1px solid var(--color-border);
    flex-shrink: 0;
}

.ms-sidebar-user {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    min-width: 0;
}

.ms-avatar {
    width: 32px;
    height: 32px;
    min-width: 32px;
    border-radius: 50%;
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: var(--weight-semibold);
}

.ms-sidebar-user-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.ms-sidebar-user-name {
    font-size: var(--text-label);
    font-weight: var(--weight-medium);
    color: var(--color-text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.ms-sidebar-user-role {
    font-size: var(--text-small);
    color: var(--color-text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.ms-sidebar-logout-btn {
    background: none;
    border: none;
    padding: var(--space-1);
    cursor: pointer;
    color: var(--color-text-secondary);
    border-radius: var(--radius-btn);
    display: flex;
    align-items: center;
    transition: color var(--transition-base), background-color var(--transition-base);
    flex-shrink: 0;
}

.ms-sidebar-logout-btn:hover {
    color: var(--color-danger);
    background-color: var(--color-danger-light);
}

/* Overlay mobile */
.ms-sidebar-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.4);
    z-index: 199;
    opacity: 0;
    pointer-events: none;
    transition: opacity 200ms ease;
}

.ms-sidebar-overlay--visible {
    opacity: 1;
    pointer-events: auto;
}

/* ── Layout principal (desplazado por el sidebar) ────────────── */
.ms-layout-main {
    margin-left: 220px;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ── Topbar — UI_UX.md §7: 56px, blanco, borde inferior ──────── */
.ms-topbar {
    height: 56px;
    background-color: var(--color-bg-primary);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    padding: 0 var(--space-6);
    gap: var(--space-4);
    position: sticky;
    top: 0;
    z-index: 100;
    flex-shrink: 0;
}

.ms-topbar-hamburger {
    background: none;
    border: none;
    padding: var(--space-2);
    cursor: pointer;
    color: var(--color-text-secondary);
    border-radius: var(--radius-btn);
    display: flex;
    align-items: center;
    transition: color var(--transition-base), background-color var(--transition-base);
    flex-shrink: 0;
}

.ms-topbar-hamburger:hover {
    background-color: var(--color-bg-hover);
    color: var(--color-text-primary);
}

.ms-topbar-breadcrumb {
    flex: 1;
    min-width: 0;
}

.ms-topbar-page-title {
    font-size: var(--text-body);
    font-weight: var(--weight-medium);
    color: var(--color-text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.ms-topbar-user {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    flex-shrink: 0;
}

.ms-topbar-user-name {
    font-size: var(--text-label);
    color: var(--color-text-primary);
    max-width: 160px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.ms-topbar-user-role {
    font-size: var(--text-small);
    color: var(--color-text-secondary);
    padding: 2px 8px;
    background-color: var(--color-bg-secondary);
    border-radius: 4px;
    white-space: nowrap;
}

/* ── Área de contenido ───────────────────────────────────────── */
.ms-content {
    flex: 1;
    padding: var(--space-6);
    background-color: var(--color-bg-secondary);
}

/* ── Layout del cliente — UI_UX.md §6 y §7 ──────────────────── */
.ms-client-header {
    height: 60px;
    background-color: var(--color-bg-primary);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
    flex-shrink: 0;
}

.ms-client-header-inner {
    height: 100%;
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: 0 var(--space-6);
    max-width: 1280px;
    margin: 0 auto;
}

.ms-client-brand {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    text-decoration: none;
    flex-shrink: 0;
}

.ms-client-logo {
    display: block;
}

.ms-client-brand-name {
    font-size: var(--text-small);
    color: var(--color-text-secondary);
    font-weight: var(--weight-regular);
    white-space: nowrap;
}

.ms-client-nav {
    flex: 1;
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.ms-client-nav-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-body);
    font-weight: var(--weight-medium);
    color: var(--color-text-primary);
    text-decoration: none;
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-btn);
    transition: color var(--transition-base), background-color var(--transition-base);
}

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

.ms-client-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-shrink: 0;
}

.ms-btn-nuevo-ticket {
    border-radius: var(--radius-btn);
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-label);
}

.ms-client-user {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding-left: var(--space-3);
    border-left: 1px solid var(--color-border);
}

.ms-client-user-name {
    font-size: var(--text-label);
    color: var(--color-text-primary);
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.ms-client-logout-btn {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1);
    border-radius: var(--radius-btn);
    font-size: var(--text-small);
    transition: color var(--transition-base);
}

.ms-client-logout-btn:hover {
    color: var(--color-danger);
}

.ms-client-main {
    background-color: var(--color-bg-secondary);
    min-height: calc(100vh - 60px);
}

.ms-client-content {
    padding: var(--space-6);
    max-width: 1280px;
    margin: 0 auto;
}

/* ── Dashboard placeholder — UI_UX.md §11 ────────────────────── */
.ms-dashboard-header {
    margin-bottom: var(--space-6);
}

.ms-page-title {
    font-size: var(--text-h1);
    font-weight: var(--weight-semibold);
    color: var(--color-text-primary);
    margin: 0 0 var(--space-1);
}

.ms-page-subtitle {
    font-size: var(--text-body);
    color: var(--color-text-secondary);
    margin: 0;
}

.ms-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--space-8) var(--space-4);
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
}

.ms-empty-icon {
    width: 56px;
    height: 56px;
    background-color: var(--color-bg-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-4);
}

.ms-empty-title {
    font-size: var(--text-h3);
    font-weight: var(--weight-medium);
    color: var(--color-text-primary);
    margin: 0 0 var(--space-2);
}

.ms-empty-text {
    font-size: var(--text-body);
    color: var(--color-text-secondary);
    max-width: 380px;
    margin: 0;
}

/* ── Responsive — UI_UX.md §15 ──────────────────────────────── */

/* Tablet: sidebar colapsado a 56px */
@media (max-width: 1024px) and (min-width: 769px) {
    .ms-sidebar {
        width: 56px;
    }

    .ms-sidebar-brand-name,
    .ms-sidebar-label,
    .ms-sidebar-user-info {
        display: none;
    }

    .ms-sidebar-brand {
        justify-content: center;
        padding: 0;
    }

    .ms-sidebar-nav {
        align-items: center;
    }

    .ms-sidebar-item {
        justify-content: center;
        padding: var(--space-2);
    }

    .ms-sidebar-footer {
        padding: var(--space-2);
    }

    .ms-sidebar-user {
        justify-content: center;
    }

    .ms-sidebar-user-info {
        display: none;
    }

    .ms-layout-main {
        margin-left: 56px;
    }
}

/* Mobile: sidebar oculto, hamburguesa visible */
@media (max-width: 768px) {
    .ms-sidebar {
        transform: translateX(-100%);
        width: 260px;
        box-shadow: var(--shadow-overlay);
    }

    .ms-sidebar--open {
        transform: translateX(0);
    }

    /* En mobile restaurar labels del sidebar */
    .ms-sidebar--open .ms-sidebar-brand-name,
    .ms-sidebar--open .ms-sidebar-label,
    .ms-sidebar--open .ms-sidebar-user-info {
        display: block;
    }

    .ms-sidebar--open .ms-sidebar-brand {
        justify-content: flex-start;
        padding: 0 var(--space-4);
    }

    .ms-sidebar--open .ms-sidebar-item {
        justify-content: flex-start;
        padding: var(--space-2) var(--space-3);
    }

    .ms-sidebar--open .ms-sidebar-user {
        justify-content: flex-start;
    }

    .ms-layout-main {
        margin-left: 0;
    }

    /* Padding reducido en mobile */
    .ms-content {
        padding: var(--space-4);
    }

    .ms-client-content {
        padding: var(--space-4);
    }

    .ms-client-header-inner {
        padding: 0 var(--space-4);
        gap: var(--space-2);
    }

    .ms-topbar {
        padding: 0 var(--space-4);
    }

    /* Formulario de login en mobile: card ocupa el ancho */
    .ms-login-card {
        padding: 1.5rem;
    }
}

/* ── Fase 0.6 v2 — Nav items como button disabled ────────────── */
/* Los ítems placeholder de sidebar y cliente usan <button disabled>  */
/* para evitar navegación activa. Hereda el estilo visual del sistema. */

button.ms-sidebar-item {
    width: 100%;
    background: none;
    border: none;
    text-align: left;
    font-family: var(--font-sans);
    font-size: var(--text-body);
    cursor: not-allowed;
    opacity: 0.65;
}

button.ms-sidebar-item:disabled {
    opacity: 0.65;
    cursor: not-allowed;
    pointer-events: none;
}

button.ms-sidebar-item--active {
    opacity: 1;
}

button.ms-client-nav-link {
    background: none;
    border: none;
    font-family: var(--font-sans);
    cursor: not-allowed;
    opacity: 0.65;
}

button.ms-client-nav-link:disabled {
    pointer-events: none;
}

/* ============================================================
   FASE 0.9 — Listado y detalle de tickets
   CTF-SISTEMA-TICKETS-V1.0-APROBADO-20260503
   UI_UX.md §9 — Cards de ticket y badges de estado.
   No se modifican tokens existentes.
   ============================================================ */

/* ── Cards de ticket — listado ───────────────────────────────── */
.ms-ticket-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.ms-ticket-card {
    display: block;
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    padding: var(--space-4);
    text-decoration: none;
    color: var(--color-text-primary);
    transition: background-color var(--transition-base), box-shadow var(--transition-base);
}

.ms-ticket-card:hover {
    background-color: var(--color-bg-hover);
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    text-decoration: none;
    color: var(--color-text-primary);
}

/* Borde rojo izquierdo para tickets urgentes — CA-UI-11 */
.ms-ticket-card--urgent {
    border-left: 3px solid #DC2626;
}

.ms-ticket-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    margin-bottom: var(--space-2);
}

.ms-ticket-number {
    font-family: monospace;
    font-size: var(--text-small);
    color: var(--color-text-secondary);
    flex-shrink: 0;
}

.ms-ticket-subject {
    font-size: var(--text-body);
    font-weight: var(--weight-medium);
    color: var(--color-text-primary);
    margin: 0 0 var(--space-2);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.ms-ticket-card-footer {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.ms-ticket-meta {
    font-size: var(--text-small);
    color: var(--color-text-secondary);
}

.ms-ticket-date {
    font-size: var(--text-small);
    color: var(--color-text-secondary);
    margin-left: auto;
    flex-shrink: 0;
}

/* ── Badge de estado — UI_UX.md §9 ─────────────────────────── */
.ms-ticket-badge {
    display: inline-block;
    font-size: 13px;
    font-weight: var(--weight-medium);
    border-radius: 4px;
    padding: 2px 8px;
    white-space: nowrap;
    flex-shrink: 0;
}

/* ── Detalle del ticket — definition list ───────────────────── */
.ms-ticket-dl {
    margin: 0;
}

.ms-ticket-dl dt {
    font-size: var(--text-small);
    font-weight: var(--weight-medium);
    color: var(--color-text-secondary);
    margin-top: var(--space-3);
}

.ms-ticket-dl dd {
    font-size: var(--text-body);
    color: var(--color-text-primary);
    margin: 0;
}

.ms-ticket-dl dt:first-child {
    margin-top: 0;
}

/* ============================================================
   Fase 0.9 — Cards de ticket, badges y listado
   CTF-SISTEMA-TICKETS-V1.0-APROBADO-20260503
   UI_UX.md §9 — Cards de ticket y Badges de estado
   ============================================================ */

/* Listado de tickets */
.ms-ticket-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* Card de ticket — UI_UX.md §9 */
.ms-ticket-card {
    display: block;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    padding: var(--space-4);
    text-decoration: none;
    color: inherit;
    transition: background 0.15s;
}
.ms-ticket-card:hover {
    background: var(--color-bg-hover);
    color: inherit;
    text-decoration: none;
}

/* Borde rojo 3px para tickets urgentes — CA-UI-11 */
.ms-ticket-card--urgent {
    border-left: 3px solid #DC2626;
}

/* Cabecera: número + badge */
.ms-ticket-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-2);
    gap: var(--space-2);
}

/* Número de ticket — monospace, gris — UI_UX.md §9 */
.ms-ticket-number {
    font-family: monospace;
    font-size: var(--text-small);
    color: #6B7280;
    font-weight: var(--weight-medium);
}

/* Asunto del ticket */
.ms-ticket-subject {
    font-size: var(--text-body);
    font-weight: var(--weight-medium);
    color: var(--color-text-primary);
    margin: 0 0 var(--space-2);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Footer: meta + fecha */
.ms-ticket-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-2);
    flex-wrap: wrap;
}
.ms-ticket-meta {
    font-size: var(--text-small);
    color: var(--color-text-secondary);
}
.ms-ticket-date {
    font-size: var(--text-small);
    color: var(--color-text-secondary);
    white-space: nowrap;
}

/* Badge de estado — UI_UX.md §9 */
.ms-ticket-badge {
    display: inline-block;
    font-size: 13px;
    font-weight: 500;
    line-height: 1;
    padding: 2px 8px;
    border-radius: 4px;
    white-space: nowrap;
}

/* Definition list para ficha del ticket */
.ms-ticket-dl {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 4px 12px;
    margin: 0;
    font-size: var(--text-small);
}
.ms-ticket-dl dt {
    color: var(--color-text-secondary);
    font-weight: var(--weight-medium);
    padding: 2px 0;
}
.ms-ticket-dl dd {
    color: var(--color-text-primary);
    margin: 0;
    padding: 2px 0;
    word-break: break-word;
}

/* ============================================================
   Fase 1.0 — Hilo de mensajes (ticket_messages)
   CTF-SISTEMA-TICKETS-V1.0-APROBADO-20260503
   UI_UX.md CA-UI-09 — Diferenciación visual cliente/equipo
   ============================================================ */

/* Contenedor del hilo */
.ms-thread {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    max-height: 600px;
    overflow-y: auto;
    padding: var(--space-2) 0;
}

.ms-thread-empty {
    padding: var(--space-3) 0;
    color: var(--color-text-secondary);
}

/* Burbuja base */
.ms-bubble {
    display: flex;
    flex-direction: column;
    max-width: 80%;
}

/* Burbuja del cliente — izquierda */
.ms-bubble--client {
    align-self: flex-start;
}

/* Burbuja del equipo — derecha */
.ms-bubble--team {
    align-self: flex-end;
}

/* Contenido de la burbuja */
.ms-bubble-content {
    padding: var(--space-3) var(--space-4);
    border-radius: 12px;
    font-size: var(--text-body);
    line-height: 1.55;
    word-break: break-word;
    white-space: pre-wrap;
}

/* Fondo cliente — gris claro */
.ms-bubble--client .ms-bubble-content {
    background: #F3F4F6;
    color: var(--color-text-primary);
    border-bottom-left-radius: 4px;
}

/* Fondo equipo — azul claro */
.ms-bubble--team .ms-bubble-content {
    background: #EFF6FF;
    color: var(--color-text-primary);
    border-bottom-right-radius: 4px;
}

/* Meta: autor, rol, fecha */
.ms-bubble-meta {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-top: 4px;
    font-size: 12px;
    color: var(--color-text-secondary);
}

.ms-bubble--team .ms-bubble-meta {
    justify-content: flex-end;
}

.ms-bubble-author {
    font-weight: var(--weight-medium);
}

.ms-bubble-sep {
    color: #D1D5DB;
}

.ms-bubble-date {
    color: var(--color-text-secondary);
}

/* ============================================================
   Fase 1.1 — Etiqueta de cambio de estado en el hilo
   CTF-SISTEMA-TICKETS-V1.0-APROBADO-20260503
   UI_UX.md §11 — "Etiqueta de cambio": texto centrado, sin fondo, sin borde
   ============================================================ */

/* Contenedor de la etiqueta de cambio */
.ms-history-entry {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) 0;
}

/* Líneas horizontales decorativas a cada lado del texto */
.ms-history-line {
    flex: 1;
    height: 1px;
    background: #E5E7EB;
}

/* Texto de la etiqueta */
.ms-history-text {
    font-size: 12px;
    color: #9CA3AF;
    white-space: nowrap;
    text-align: center;
}

/* Meta: actor y fecha */
.ms-history-meta {
    color: #D1D5DB;
    margin-left: 4px;
}

/* ============================================================
   Fase 1.2 — Notas internas del equipo (ticket_internal_notes)
   CTF-SISTEMA-TICKETS-V1.0-APROBADO-20260503
   UI_UX.md — fondo #FEFCE8 para notas internas
   NUNCA visibles para el cliente (RN-05, CA-14)
   ============================================================ */

.ms-internal-notes-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

/* Nota interna individual — fondo amarillo UI_UX.md */
.ms-internal-note {
    background: #FEFCE8;
    border: 1px solid #FDE047;
    border-radius: var(--radius-card);
    padding: var(--space-3) var(--space-4);
}

/* Cabecera: badge + meta */
.ms-internal-note-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-2);
    flex-wrap: wrap;
    gap: var(--space-2);
}

/* Badge "Nota interna" */
.ms-internal-note-badge {
    font-size: 11px;
    font-weight: var(--weight-medium);
    color: #713F12;
    background: #FEF9C3;
    border: 1px solid #FDE047;
    border-radius: 4px;
    padding: 1px 6px;
    white-space: nowrap;
}

/* Meta: autor y fecha */
.ms-internal-note-meta {
    font-size: 12px;
    color: #92400E;
}

/* Contenido de la nota */
.ms-internal-note-content {
    font-size: var(--text-body);
    color: #713F12;
    white-space: pre-wrap;
    word-break: break-word;
    line-height: 1.55;
}

/* ============================================================
   Fase 1.3 — Adjuntos en mensajes (ticket_messages.attachments)
   CTF-SISTEMA-TICKETS-V1.0-APROBADO-20260503
   §24: No accesibles por URL directa — descarga vía AttachmentController
   DP-02 resuelta: PDF, JPG, PNG, GIF, WebP — máx 10 MB — máx 5 archivos
   ============================================================ */

/* Contenedor de adjuntos en una burbuja */
.ms-bubble-attachments {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-top: var(--space-2);
    padding-top: var(--space-2);
    border-top: 1px solid rgba(0,0,0,0.08);
}

/* Link de descarga individual */
.ms-attachment-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: #1D4ED8;
    text-decoration: none;
    padding: 2px 6px;
    border-radius: 4px;
    background: rgba(29,78,216,0.06);
    border: 1px solid rgba(29,78,216,0.15);
    max-width: 100%;
    word-break: break-all;
    transition: background 0.1s;
}

.ms-attachment-link:hover {
    background: rgba(29,78,216,0.12);
    color: #1E40AF;
    text-decoration: none;
}

.ms-attachment-icon {
    flex-shrink: 0;
    font-size: 14px;
    line-height: 1;
}

.ms-attachment-name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.ms-attachment-size {
    flex-shrink: 0;
    color: #6B7280;
    font-size: 11px;
}

/* ============================================================
   Fase 1.4 — Derivación de tickets (FL04)
   CTF-SISTEMA-TICKETS-V1.0-APROBADO-20260503
   ============================================================ */

/* Historial: entrada de derivación — diferenciada visualmente */
.ms-history-entry--derivation .ms-history-text {
    color: #92400E;
}

/* ============================================================
   Fase 1.7 — Reapertura de tickets (FL06)
   CTF-SISTEMA-TICKETS-V1.0-APROBADO-20260503
   ============================================================ */

/* Historial: entrada de reapertura */
.ms-history-entry--reopen .ms-history-text {
    color: #92400E;
}

/* ============================================================
   Fase 1.8 — Filtros y búsqueda operativa en listados
   CTF-SISTEMA-TICKETS-V1.0-APROBADO-20260503
   ============================================================ */

/* Barra de filtros — contenedor */
.ms-filter-bar {
    background: #F9FAFB;
    border: 1px solid #E5E7EB;
    border-radius: 8px;
    padding: 10px 14px;
}

/* Select estándar de filtro */
.ms-filter-select {
    min-width: 160px;
    max-width: 220px;
}

/* Select pequeño para orden */
.ms-filter-select-sm {
    min-width: 160px;
    max-width: 200px;
}

/* Input de búsqueda */
.ms-filter-input {
    min-width: 180px;
    max-width: 260px;
}