/* ==========================================================================
   COMPONENTS CSS - Metodología BEM
   Componentes reutilizables siguiendo estándares corporativos
   ========================================================================== */

/* ==========================================================================
   STAT CARDS - Tarjetas de Estadísticas
   ========================================================================== */

/* Contenedor principal de las tarjetas estadísticas */
.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 2.5rem;
}

/* Tarjeta estadística individual */
.stats__card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    position: relative;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.stats__card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.stats__card:hover {
    border-color: var(--primary-color);
    box-shadow: 0 8px 25px rgba(44, 90, 160, 0.15);
    transform: translateY(-4px);
}

.stats__card:hover::before {
    width: 6px;
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
}

/* Contenido de la tarjeta */
.stats__content {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Icono de la estadística */
.stats__icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--gray-100), var(--gray-200));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.5rem;
    flex-shrink: 0;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.stats__card:hover .stats__icon {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 4px 15px rgba(44, 90, 160, 0.3);
}

/* Información de la estadística */
.stats__info {
    flex: 1;
    min-width: 0;
}

.stats__value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--gray-900);
    line-height: 1.1;
    margin: 0 0 0.5rem 0;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stats__label {
    font-size: 0.875rem;
    color: var(--gray-600);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin: 0;
    opacity: 0.8;
}

/* Variantes de color para diferentes tipos de estadísticas */
.stats__card--primary::before {
    background: linear-gradient(135deg, var(--primary-color), #1e40af);
}

.stats__card--primary .stats__icon {
    background: linear-gradient(135deg, rgba(44, 90, 160, 0.1), rgba(44, 90, 160, 0.2));
    color: var(--primary-color);
}

.stats__card--primary:hover .stats__icon {
    background: linear-gradient(135deg, var(--primary-color), #1e40af);
    color: var(--white);
}

.stats__card--success::before {
    background: linear-gradient(135deg, var(--secondary-color), #16a34a);
}

.stats__card--success .stats__icon {
    background: linear-gradient(135deg, rgba(40, 167, 69, 0.1), rgba(40, 167, 69, 0.2));
    color: var(--secondary-color);
}

.stats__card--success:hover .stats__icon {
    background: linear-gradient(135deg, var(--secondary-color), #16a34a);
    color: var(--white);
}

.stats__card--warning::before {
    background: linear-gradient(135deg, var(--warning-color), #ea580c);
}

.stats__card--warning .stats__icon {
    background: linear-gradient(135deg, rgba(253, 126, 20, 0.1), rgba(253, 126, 20, 0.2));
    color: var(--warning-color);
}

.stats__card--warning:hover .stats__icon {
    background: linear-gradient(135deg, var(--warning-color), #ea580c);
    color: var(--white);
}

.stats__card--info::before {
    background: linear-gradient(135deg, var(--info-color), #0284c7);
}

.stats__card--info .stats__icon {
    background: linear-gradient(135deg, rgba(23, 162, 184, 0.1), rgba(23, 162, 184, 0.2));
    color: var(--info-color);
}

.stats__card--info:hover .stats__icon {
    background: linear-gradient(135deg, var(--info-color), #0284c7);
    color: var(--white);
}

/* Estados especiales */
.stats__card--loading {
    opacity: 0.7;
    pointer-events: none;
}

.stats__card--loading .stats__value::after {
    content: '';
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid var(--gray-300);
    border-top: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-left: 0.5rem;
}

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

/* Responsive Design */
@media (max-width: 1024px) {
    .stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
}

@media (max-width: 768px) {
    .stats {
        grid-template-columns: 1fr;
        gap: 1.25rem;
        margin-bottom: 2rem;
    }
    
    .stats__card {
        padding: 1.5rem;
    }
    
    .stats__content {
        gap: 1rem;
    }
    
    .stats__icon {
        width: 48px;
        height: 48px;
        font-size: 1.25rem;
        border-radius: 12px;
    }
    
    .stats__value {
        font-size: 1.75rem;
    }
    
    .stats__label {
        font-size: 0.8125rem;
        letter-spacing: 0.75px;
    }
}

@media (max-width: 480px) {
    .stats__card {
        padding: 1.25rem;
    }
    
    .stats__content {
        gap: 0.875rem;
    }
    
    .stats__icon {
        width: 44px;
        height: 44px;
        font-size: 1.125rem;
        border-radius: 10px;
    }
    
    .stats__value {
        font-size: 1.5rem;
    }
    
    .stats__label {
        font-size: 0.75rem;
        letter-spacing: 0.5px;
    }
}

/* ==========================================================================
   SUMMARY CARDS - Tarjetas de Resumen (para créditos)
   ========================================================================== */

.summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.summary__card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius-lg);
    padding: 1.25rem;
    position: relative;
    transition: var(--transition-base);
}

.summary__card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--primary-color);
    border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
}

.summary__card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.summary__content {
    display: flex;
    align-items: center;
    gap: 0.875rem;
}

.summary__icon {
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius-md);
    background: var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.125rem;
    flex-shrink: 0;
}

.summary__info {
    flex: 1;
}

.summary__value {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--gray-900);
    line-height: 1.2;
    margin: 0 0 0.125rem 0;
}

.summary__label {
    font-size: 0.75rem;
    color: var(--gray-600);
    font-weight: var(--font-weight-medium);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: 0;
}

/* Variantes para summary cards */
.summary__card--success::before {
    background: var(--secondary-color);
}

.summary__card--warning::before {
    background: var(--warning-color);
}

.summary__card--danger::before {
    background: var(--danger-color);
}

.summary__card--info::before {
    background: var(--info-color);
}

/* Responsive para summary cards */
@media (max-width: 768px) {
    .summary {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .summary {
        grid-template-columns: 1fr;
    }
    
    .summary__card {
        padding: 1rem;
    }
    
    .summary__value {
        font-size: 1.25rem;
    }
}

/* ==========================================================================
   BUTTONS - Botones Corporativos
   ========================================================================== */

/* Botón base */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
    min-height: 44px;
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

.btn:not(:disabled):hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn:not(:disabled):active {
    transform: translateY(0);
}

/* Variantes de botones */
.btn--primary {
    background: var(--primary-color);
    color: var(--white);
}

.btn--primary:hover:not(:disabled) {
    background: #004080;
}

.btn--secondary {
    background: var(--secondary-color);
    color: var(--white);
}

.btn--secondary:hover:not(:disabled) {
    background: #e6741c;
}

.btn--success {
    background: var(--success-color);
    color: var(--white);
}

.btn--success:hover:not(:disabled) {
    background: #16a34a;
}

.btn--danger {
    background: var(--danger-color);
    color: var(--white);
}

.btn--danger:hover:not(:disabled) {
    background: #dc2626;
}

.btn--outline {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn--outline:hover:not(:disabled) {
    background: var(--primary-color);
    color: var(--white);
}

/* Tamaños de botones */
.btn--small {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    min-height: 36px;
}

.btn--large {
    padding: 1rem 2rem;
    font-size: 1rem;
    min-height: 52px;
}

/* Grupo de botones */
.btn-group {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    align-items: center;
}

.btn-group--center {
    justify-content: center;
}

.btn-group--end {
    justify-content: flex-end;
}

/* Botones específicos del simulador */
.result-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--gray-200);
}

.result-actions .btn {
    min-width: 160px;
}

/* Estados de carga */
.btn .loading {
    width: 16px;
    height: 16px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Responsive para botones */
@media (max-width: 768px) {
    .result-actions {
        flex-direction: column;
        align-items: stretch;
    }
    
    .result-actions .btn {
        min-width: auto;
        width: 100%;
    }
    
    .btn-group {
        flex-direction: column;
        align-items: stretch;
    }
    
    .btn-group .btn {
        width: 100%;
    }
}