/**
 * POS CompraMAS - Estilos base
 * Reset, tipografía, utilidades - Mobile-first
 * Tokens en tokens.css
 */

/* Utilidad de accesibilidad: oculto visualmente pero legible por lectores de pantalla */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
    border: 0;
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* Fase 1.3: quitar highlight táctil azul en Android (mejor UX móvil) */
a,
button,
input,
select,
textarea,
[role="button"],
.btn,
.pos-nav-item,
.pos-bottom-bar-cart-trigger,
.pos-bottom-bar-cobrar {
    -webkit-tap-highlight-color: transparent;
    tap-highlight-color: transparent;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    line-height: var(--leading-normal);
    color: var(--color-text);
    background-color: var(--color-background);
    min-height: 100dvh;
    transition: background-color var(--transition-theme-duration) var(--transition-theme-easing),
                color var(--transition-theme-duration) var(--transition-theme-easing);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Focus visible (accesibilidad) */
:focus-visible {
    outline: 2px solid var(--color-border-focus);
    outline-offset: 2px;
}
:focus:not(:focus-visible) {
    outline: none;
}

/* Spinner de carga (Fase 5) */
.spinner {
    width: 24px;
    height: 24px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spinner-rotate 0.8s linear infinite;
}

.spinner-lg {
    width: 40px;
    height: 40px;
    border-width: 3px;
}

@keyframes spinner-rotate {
    to { transform: rotate(360deg); }
}

/* Reducción de movimiento */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    .spinner { animation: none; }
}

#app {
    min-height: 100dvh;
}

/* Indicador de conexión: solo icono (punto); texto oculto visualmente pero accesible */
.connection-status {
    position: fixed;
    top: calc(var(--app-header-height, 64px) + var(--space-2));
    right: var(--space-3);
    padding: var(--space-2);
    border-radius: var(--radius-full);
    font-size: 0.6875rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-1);
    border: 1px solid transparent;
    z-index: 150;
    box-shadow: var(--shadow-sm);
    min-width: 32px;
    min-height: 32px;
    overflow: hidden;
}

.connection-online {
    background: var(--color-success);
    color: var(--color-success-contrast);
}

.connection-offline {
    background: var(--color-error);
    color: var(--color-danger-contrast);
}

.connection-dot {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: currentColor;
    animation: connection-pulse 2s infinite;
    flex-shrink: 0;
}

.connection-online .connection-dot {
    background: var(--color-success-contrast);
}

.connection-pending {
    opacity: 1;
}

/* Ocultar texto del estado de conexión: solo se muestra el punto (icono) en todos los modos */
.connection-status .connection-text {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Integrado en barra de usuario: no flotante, alineado con tema/cerrar sesión */
.app-user-bar .connection-status {
    position: static;
    top: auto;
    right: auto;
    box-shadow: none;
    max-width: none;
    font-size: var(--text-sm);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    cursor: pointer;
    min-width: 44px;
    justify-content: center;
}

.app-user-bar .connection-status.connection-online {
    border-color: var(--color-success);
}

.app-user-bar .connection-status.connection-offline {
    border-color: var(--color-danger);
}

/* Fase 5: Panel de estado de sincronización */
.connection-status-wrap {
    position: fixed;
    top: calc(var(--app-header-height, 64px) + var(--space-2));
    right: var(--space-3);
    display: inline-flex;
    align-items: center;
    gap: 0;
    z-index: 150;
}
.connection-status-wrap .connection-status {
    position: static;
    top: auto;
    right: auto;
}
.connection-sync-trigger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 32px;
    padding: 0;
    margin-left: -2px;
    border: 1px solid var(--color-border);
    border-left: none;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    background: var(--color-bg);
    color: var(--color-text-secondary);
    cursor: pointer;
    font-size: 0.65rem;
}
.connection-sync-trigger:hover {
    background: var(--color-bg-hover);
}
.connection-sync-trigger[aria-expanded="true"] .connection-sync-trigger-icon {
    transform: rotate(180deg);
}
.connection-sync-trigger-icon {
    transition: transform 0.2s ease;
}
.connection-sync-panel {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: var(--space-1);
    min-width: 280px;
    max-width: 90vw;
    max-height: 60vh;
    overflow: auto;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    z-index: 151;
}
.connection-sync-panel[hidden] {
    display: none !important;
}
.connection-sync-panel-content {
    padding: var(--space-3);
}
.connection-sync-panel-section {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2);
}
.connection-sync-panel-section .sync-row {
    display: flex;
    justify-content: space-between;
    gap: var(--space-2);
    margin-top: var(--space-1);
}
.connection-sync-panel-errors {
    font-size: var(--text-xs);
    color: var(--color-danger);
    margin-bottom: var(--space-2);
    max-height: 120px;
    overflow-y: auto;
}
.connection-sync-panel-errors .sync-error-item {
    padding: var(--space-1) 0;
    border-bottom: 1px solid var(--color-border);
}
.connection-sync-panel-errors .sync-error-item:last-child {
    border-bottom: none;
}
.connection-sync-panel-integrity {
    font-size: var(--text-xs);
    margin-bottom: var(--space-2);
}
.connection-sync-integrity-ok { color: var(--color-success); }
.connection-sync-integrity-warn { color: var(--color-warning, #b45309); }
.connection-sync-panel-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    justify-content: flex-end;
}

.app-user-bar .connection-status-wrap {
    position: static;
    display: inline-flex;
}
.app-user-bar .connection-sync-panel {
    right: 0;
}

@keyframes connection-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Z-index: Header 100, Modales 200, Toast 300, Overlays 150 (Fase 2) */

/* Toast / Notificaciones (Fase 5: top-center mobile, bottom-right desktop) */
.toast-container {
    position: fixed;
    top: var(--space-4);
    left: 50%;
    transform: translateX(-50%);
    right: auto;
    z-index: 400;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    pointer-events: none;
    isolation: isolate;
}

@media (min-width: 768px) {
    .toast-container {
        top: auto;
        bottom: var(--space-4);
        right: var(--space-4);
        left: auto;
        transform: none;
    }
}

.toast {
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    box-shadow: var(--elevation-4);
    max-width: min(360px, calc(100vw - var(--space-8)));
    opacity: 0;
    transform: translateY(-100%);
    transition: opacity var(--transition-base), transform var(--transition-base);
}

.toast.toast-visible {
    opacity: 1;
    transform: translateY(0);
    visibility: visible;
}

@media (min-width: 768px) {
    .toast {
        padding: var(--space-4) var(--space-6);
        transform: translateX(100%);
    }
    .toast.toast-visible {
        transform: translateX(0);
    }
}

.toast-info {
    background: var(--color-info);
    color: var(--color-info-contrast);
}

.toast-success {
    background: var(--color-success);
    color: var(--color-success-contrast);
}

.toast-warning {
    background: var(--color-warning);
    color: var(--color-warning-contrast);
}

.toast-error {
    background: var(--color-error);
    color: var(--color-danger-contrast);
}

/* Modal de confirmación (Fase 3.4.6: overlay blur, max-width 480px) */
.confirm-dialog-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 300;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.confirm-dialog-overlay.confirm-dialog-visible {
    opacity: 1;
}

.confirm-dialog-box {
    background: var(--color-surface);
    color: var(--color-text);
    border-radius: var(--radius-lg);
    box-shadow: var(--elevation-3);
    max-width: min(480px, calc(100vw - 2 * var(--space-lg)));
    width: calc(100% - 2 * var(--space-lg));
    padding: var(--space-xl);
    transform: scale(0.95);
    transition: transform var(--transition-base);
}

.confirm-dialog-visible .confirm-dialog-box {
    transform: scale(1);
}

.confirm-dialog-title {
    font-size: var(--text-lg);
    font-weight: var(--font-weight-semibold, 600);
    margin-bottom: var(--space-md);
    color: var(--color-text);
}

.confirm-dialog-message {
    color: var(--color-text-muted);
    line-height: 1.5;
    margin-bottom: var(--space-xl);
}

.confirm-dialog-actions {
    display: flex;
    gap: var(--space-md);
    justify-content: flex-end;
}

.confirm-dialog-actions .btn-danger {
    background: var(--color-danger);
    color: var(--color-danger-contrast);
}

.confirm-dialog-actions .btn-danger:hover {
    background: var(--color-danger-hover);
}

/* Performance: content-visibility para listas largas (UX 9.7.2) */
@supports (content-visibility: auto) {
    .pos-cart-items .pos-cart-item-swipe {
        content-visibility: auto;
        contain-intrinsic-size: 0 72px;
    }
    .ventas-table tbody tr,
    .inventory-table tbody tr,
    .reportes-table tbody tr,
    .compras-table tbody tr,
    .caja-table tbody tr,
    .admin-table tbody tr,
    .alertas-table tbody tr,
    .credits-table tbody tr,
    .dashboard-table tbody tr {
        content-visibility: auto;
        contain-intrinsic-size: 0 44px;
    }
}

/* Fase 4.1 — Tipografía en móvil: títulos legibles, cuerpo ≥14px */
@media (max-width: 767px) {
    h1 {
        font-size: clamp(1.15rem, 4vw, 1.5rem);
        line-height: var(--leading-tight);
    }
    h2 {
        font-size: clamp(1.1rem, 3vw, 1.25rem);
        line-height: var(--leading-tight);
    }
    h3 {
        font-size: clamp(1rem, 2.5vw, 1.125rem);
    }
    /* Texto importante en vistas: mínimo 14px para legibilidad sin zoom */
    .view-container,
    .view-container p,
    .view-container li {
        font-size: var(--text-base);
    }
    .view-container .text-sm {
        font-size: var(--text-sm); /* 14px — mínimo para texto secundario */
    }
}