/* ===========================================================
    BUTTON PRIMARY - PRICE RADAR TCG
    Botón principal con color naranja (#FF6B35)
=========================================================== */

.btn-primary-custom {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: #ffffff;
    background: var(--color-primary);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: 0 2px 8px var(--color-primary-shadow);
    text-decoration: none;
}

.btn-primary-custom:hover {
    background: var(--color-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--color-primary-shadow);
}

.btn-primary-custom:active {
    background: var(--color-primary-active);
    transform: translateY(0);
    box-shadow: 0 1px 4px var(--color-primary-shadow);
}

.btn-primary-custom:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn.btn-primary-custom i {
    font-size: 1.125rem;
}

/* Botón pequeño */
.btn-primary-custom.btn-sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-sm);
}

/* Botón grande */
.btn-primary-custom.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-lg);
}

/* Botón en loading */
.btn-primary-custom.loading {
    position: relative;
    color: transparent;
    pointer-events: none;
}

.btn-primary-custom.loading::after {
    content: "";
    position: absolute;
    width: 16px;
    height: 16px;
    top: 50%;
    left: 50%;
    margin-left: -8px;
    margin-top: -8px;
    border: 2px solid #ffffff;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 0.6s linear infinite;
}

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