/**
 * ============================================================================
 * SISTEMA DE DISEÑO DE BOTONES - AUGUS MES
 * 3 Variantes Estándar: Primario (B2B), Interfaz (Glassmorphism), Secundario (Flecha)
 * ============================================================================
 */

:root {
    --btn-font-family: inherit;
    --btn-radius: 8px;
    --btn-transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Variante 1: Primario (Acción Principal / B2B) */
    --btn-primary-bg: #0F172A;
    --btn-primary-hover-bg: #1E293B;
    --btn-primary-text: #FFFFFF;
    --btn-primary-shadow: 0 4px 6px -1px rgba(15, 23, 42, 0.18), 0 2px 4px -2px rgba(15, 23, 42, 0.12);
    --btn-primary-shadow-hover: 0 10px 15px -3px rgba(15, 23, 42, 0.28), 0 4px 6px -4px rgba(15, 23, 42, 0.18);
    --btn-primary-shadow-active: 0 2px 4px -1px rgba(15, 23, 42, 0.20);
    
    /* Variante 2: Superficie / Interfaz (Glassmorphism Ejecutivo) */
    --btn-glass-bg: rgba(255, 255, 255, 0.07);
    --btn-glass-hover-bg: rgba(255, 255, 255, 0.15);
    --btn-glass-border: 1px solid rgba(255, 255, 255, 0.15);
    --btn-glass-hover-border: 1px solid rgba(255, 255, 255, 0.35);
    --btn-glass-text: #F8FAFC;
    --btn-glass-blur: blur(12px);
    
    /* Variante 3: Secundario (Acción Secundaria con Microinteracción de Flecha) */
    --btn-secondary-bg: #FFFFFF;
    --btn-secondary-hover-bg: #F8FAFC;
    --btn-secondary-border: 1px solid #CBD5E1;
    --btn-secondary-hover-border: 1px solid #94A3B8;
    --btn-secondary-text: #1E293B;
    --btn-secondary-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --btn-secondary-shadow-hover: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
}

/* ============================================================================
 * 0. ESTILOS BASE COMPARTIDOS (RESET & ACCESIBILIDAD)
 * ============================================================================ */
.btn-primary,
.btn-corporate,
.btn-glass,
.btn-surface,
.btn-secondary,
.btn-arrow,
.btn.btn-primary,
.btn.btn-corporate,
.btn.btn-glass,
.btn.btn-surface,
.btn.btn-secondary,
.btn.btn-arrow {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: var(--btn-radius);
    font-family: var(--btn-font-family);
    font-size: 0.92em;
    font-weight: 600;
    line-height: 1.4;
    text-decoration: none;
    cursor: pointer;
    box-sizing: border-box;
    vertical-align: middle;
    user-select: none;
    -webkit-user-select: none;
    transition: var(--btn-transition);
    border: none;
    outline: none;
}

/* Estados de foco accesibles */
.btn-primary:focus-visible,
.btn-corporate:focus-visible {
    outline: 2px solid #3B82F6;
    outline-offset: 2px;
}

.btn-glass:focus-visible,
.btn-surface:focus-visible {
    outline: 2px solid rgba(255, 255, 255, 0.6);
    outline-offset: 2px;
}

.btn-secondary:focus-visible,
.btn-arrow:focus-visible {
    outline: 2px solid #64748B;
    outline-offset: 2px;
}

/* Estados deshabilitados */
.btn-primary:disabled,
.btn-primary.disabled,
.btn-corporate:disabled,
.btn-corporate.disabled,
.btn-glass:disabled,
.btn-glass.disabled,
.btn-surface:disabled,
.btn-surface.disabled,
.btn-secondary:disabled,
.btn-secondary.disabled,
.btn-arrow:disabled,
.btn-arrow.disabled {
    opacity: 0.55;
    cursor: not-allowed;
    pointer-events: none;
    box-shadow: none !important;
    transform: none !important;
}


/* ============================================================================
 * 1. BOTÓN PRIMARIO (ACCIÓN PRINCIPAL / B2B)
 * Clases: .btn-primary, .btn-corporate
 * Uso: Guardar, Enviar, Registrar, Confirmar
 * ============================================================================ */
.btn-primary,
.btn-corporate,
.btn.btn-primary,
.btn.btn-corporate {
    background-color: var(--btn-primary-bg);
    color: var(--btn-primary-text);
    box-shadow: var(--btn-primary-shadow);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.btn-primary:hover,
.btn-corporate:hover,
.btn.btn-primary:hover,
.btn.btn-corporate:hover {
    background-color: var(--btn-primary-hover-bg);
    color: #FFFFFF;
    transform: translateY(-2px);
    box-shadow: var(--btn-primary-shadow-hover);
}

.btn-primary:active,
.btn-corporate:active,
.btn.btn-primary:active,
.btn.btn-corporate:active {
    transform: translateY(0);
    box-shadow: var(--btn-primary-shadow-active);
}


/* ============================================================================
 * 2. BOTÓN DE SUPERFICIE / INTERFAZ (GLASSMORPHISM EJECUTIVO)
 * Clases: .btn-glass, .btn-surface
 * Uso: Fondos oscuros, paneles laterales, barras de herramientas, accesos
 * ============================================================================ */
.btn-glass,
.btn-surface,
.btn.btn-glass,
.btn.btn-surface {
    background-color: var(--btn-glass-bg);
    backdrop-filter: var(--btn-glass-blur);
    -webkit-backdrop-filter: var(--btn-glass-blur);
    border: var(--btn-glass-border);
    color: var(--btn-glass-text);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.btn-glass:hover,
.btn-surface:hover,
.btn.btn-glass:hover,
.btn.btn-surface:hover {
    background-color: var(--btn-glass-hover-bg);
    border: var(--btn-glass-hover-border);
    color: #FFFFFF;
    transform: scale(1.02);
    box-shadow: 0 6px 14px rgba(0, 0, 0, 0.18), 0 0 10px rgba(255, 255, 255, 0.08);
}

.btn-glass:active,
.btn-surface:active {
    transform: scale(0.99);
    background-color: rgba(255, 255, 255, 0.10);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.12);
}


/* ============================================================================
 * 3. BOTÓN SECUNDARIO (ACCIÓN SECUNDARIA CON MICROINTERACCIÓN DE FLECHA)
 * Clases: .btn-secondary, .btn-arrow
 * Uso: "Ver detalles", "Volver", "Explorar", acciones secundarias
 * ============================================================================ */
.btn-secondary,
.btn-arrow,
.btn.btn-secondary,
.btn.btn-arrow {
    background-color: var(--btn-secondary-bg);
    border: var(--btn-secondary-border);
    color: var(--btn-secondary-text);
    box-shadow: var(--btn-secondary-shadow);
}

/* Transición suave para cualquier icono de flecha interno */
.btn-secondary .btn-arrow-icon,
.btn-secondary svg,
.btn-secondary i.fa-arrow-right,
.btn-secondary i.fa-chevron-right,
.btn-secondary i.fa-arrow-left,
.btn-secondary i.fa-chevron-left,
.btn-arrow .btn-arrow-icon,
.btn-arrow svg,
.btn-arrow i.fa-arrow-right,
.btn-arrow i.fa-chevron-right,
.btn-arrow i.fa-arrow-left,
.btn-arrow i.fa-chevron-left {
    transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-block;
}

.btn-secondary:hover,
.btn-arrow:hover,
.btn.btn-secondary:hover,
.btn.btn-arrow:hover {
    background-color: var(--btn-secondary-hover-bg);
    border-color: #94A3B8;
    color: #0F172A;
    box-shadow: var(--btn-secondary-shadow-hover);
}

/* Microinteracción de avance hacia la derecha (+4px) */
.btn-secondary:hover .btn-arrow-icon,
.btn-secondary:hover svg:not(.btn-arrow-back-icon),
.btn-secondary:hover i.fa-arrow-right,
.btn-secondary:hover i.fa-chevron-right,
.btn-arrow:hover .btn-arrow-icon,
.btn-arrow:hover svg:not(.btn-arrow-back-icon),
.btn-arrow:hover i.fa-arrow-right,
.btn-arrow:hover i.fa-chevron-right {
    transform: translateX(4px);
}

/* Microinteracción de retroceso hacia la izquierda (-4px) para botones tipo "Volver" */
.btn-secondary:hover .btn-arrow-back-icon,
.btn-secondary:hover i.fa-arrow-left,
.btn-secondary:hover i.fa-chevron-left,
.btn-arrow.btn-back:hover svg,
.btn-arrow.btn-back:hover i,
.btn-arrow-back:hover svg,
.btn-arrow-back:hover i {
    transform: translateX(-4px);
}

.btn-secondary:active,
.btn-arrow:active,
.btn.btn-secondary:active,
.btn.btn-arrow:active {
    background-color: #F1F5F9;
    transform: translateY(0);
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
}


/* ============================================================================
 * 4. TAMAÑOS Y VARIACIONES AUXILIARES
 * ============================================================================ */
.btn-sm {
    padding: 6px 12px;
    font-size: 0.82em;
    border-radius: 6px;
    gap: 6px;
}

.btn-lg {
    padding: 12px 24px;
    font-size: 1.05em;
    border-radius: 10px;
    gap: 10px;
}

.btn-icon-only {
    padding: 9px;
    width: 38px;
    height: 38px;
    border-radius: var(--btn-radius);
}

.btn-full {
    width: 100%;
}

/* Preferencias de accesibilidad de movimiento reducido */
@media (prefers-reduced-motion: reduce) {
    .btn-primary,
    .btn-corporate,
    .btn-glass,
    .btn-surface,
    .btn-secondary,
    .btn-arrow,
    .btn-secondary .btn-arrow-icon,
    .btn-secondary svg,
    .btn-secondary i,
    .btn-arrow .btn-arrow-icon,
    .btn-arrow svg,
    .btn-arrow i {
        transition: none !important;
        transform: none !important;
    }
}

/* ============================================================================
 * 5. COMPATIBILIDAD CON CLASES EXISTENTES DEL PROYECTO
 * Permite que los botones existentes (.btn-action, .btn-volver, .btn-back)
 * adopten la consistencia visual y microinteracciones de inmediato.
 * ============================================================================ */
.btn-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: var(--btn-radius);
    font-family: var(--btn-font-family);
    font-size: 0.92em;
    font-weight: 600;
    line-height: 1.4;
    text-decoration: none;
    cursor: pointer;
    box-sizing: border-box;
    transition: var(--btn-transition);
    border: none;
    outline: none;
    background-color: var(--btn-primary-bg);
    color: var(--btn-primary-text);
    box-shadow: var(--btn-primary-shadow);
}

.btn-action:hover {
    background-color: var(--btn-primary-hover-bg);
    color: #FFFFFF;
    transform: translateY(-2px);
    box-shadow: var(--btn-primary-shadow-hover);
}

.btn-action:active {
    transform: translateY(0);
    box-shadow: var(--btn-primary-shadow-active);
}

.btn-action:focus-visible {
    outline: 2px solid #3B82F6;
    outline-offset: 2px;
}

.btn-volver,
.btn-back {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 9px 18px;
    border-radius: var(--btn-radius);
    font-family: var(--btn-font-family);
    font-size: 0.92em;
    font-weight: 600;
    line-height: 1.4;
    text-decoration: none;
    cursor: pointer;
    box-sizing: border-box;
    transition: var(--btn-transition);
    background-color: var(--btn-secondary-bg);
    border: var(--btn-secondary-border);
    color: var(--btn-secondary-text);
    box-shadow: var(--btn-secondary-shadow);
}

.btn-volver i,
.btn-volver svg,
.btn-back i,
.btn-back svg {
    transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-block;
}

.btn-volver:hover,
.btn-back:hover {
    background-color: var(--btn-secondary-hover-bg);
    border-color: #94A3B8;
    color: #0F172A;
    box-shadow: var(--btn-secondary-shadow-hover);
}

.btn-volver:hover i,
.btn-volver:hover svg,
.btn-back:hover i,
.btn-back:hover svg {
    transform: translateX(-4px);
}

.btn-volver:active,
.btn-back:active {
    background-color: #F1F5F9;
    transform: translateY(0);
}

.btn-volver:focus-visible,
.btn-back:focus-visible {
    outline: 2px solid #64748B;
    outline-offset: 2px;
}